diff options
Diffstat (limited to 'arch/ppc/8xx_io')
| -rw-r--r-- | arch/ppc/8xx_io/Kconfig | 134 | ||||
| -rw-r--r-- | arch/ppc/8xx_io/Makefile | 9 | ||||
| -rw-r--r-- | arch/ppc/8xx_io/commproc.c | 432 | ||||
| -rw-r--r-- | arch/ppc/8xx_io/enet.c | 982 | ||||
| -rw-r--r-- | arch/ppc/8xx_io/fec.c | 1983 | ||||
| -rw-r--r-- | arch/ppc/8xx_io/micropatch.c | 743 |
6 files changed, 0 insertions, 4283 deletions
diff --git a/arch/ppc/8xx_io/Kconfig b/arch/ppc/8xx_io/Kconfig deleted file mode 100644 index c623e44f01a..00000000000 --- a/arch/ppc/8xx_io/Kconfig +++ /dev/null @@ -1,134 +0,0 @@ -# -# MPC8xx Communication options -# - -menu "MPC8xx CPM Options" - depends on 8xx - -config SCC_ENET - bool "CPM SCC Ethernet" - depends on NET_ETHERNET - help - Enable Ethernet support via the Motorola MPC8xx serial - communications controller. - -choice - prompt "SCC used for Ethernet" - depends on SCC_ENET - default SCC1_ENET - -config SCC1_ENET - bool "SCC1" - help - Use MPC8xx serial communications controller 1 to drive Ethernet - (default). - -config SCC2_ENET - bool "SCC2" - help - Use MPC8xx serial communications controller 2 to drive Ethernet. - -config SCC3_ENET - bool "SCC3" - help - Use MPC8xx serial communications controller 3 to drive Ethernet. - -endchoice - -config FEC_ENET - bool "860T FEC Ethernet" - depends on NET_ETHERNET - help - Enable Ethernet support via the Fast Ethernet Controller (FCC) on - the Motorola MPC8260. - -config USE_MDIO - bool "Use MDIO for PHY configuration" - depends on FEC_ENET - help - On some boards the hardware configuration of the ethernet PHY can be - used without any software interaction over the MDIO interface, so - all MII code can be omitted. Say N here if unsure or if you don't - need link status reports. - -config FEC_AM79C874 - bool "Support AMD79C874 PHY" - depends on USE_MDIO - -config FEC_LXT970 - bool "Support LXT970 PHY" - depends on USE_MDIO - -config FEC_LXT971 - bool "Support LXT971 PHY" - depends on USE_MDIO - -config FEC_QS6612 - bool "Support QS6612 PHY" - depends on USE_MDIO - -config ENET_BIG_BUFFERS - bool "Use Big CPM Ethernet Buffers" - depends on SCC_ENET || FEC_ENET - help - Allocate large buffers for MPC8xx Ethernet. Increases throughput - and decreases the likelihood of dropped packets, but costs memory. - -# This doesn't really belong here, but it is convenient to ask -# 8xx specific questions. -comment "Generic MPC8xx Options" - -config 8xx_COPYBACK - bool "Copy-Back Data Cache (else Writethrough)" - help - Saying Y here will cause the cache on an MPC8xx processor to be used - in Copy-Back mode. If you say N here, it is used in Writethrough - mode. - - If in doubt, say Y here. - -config 8xx_CPU6 - bool "CPU6 Silicon Errata (860 Pre Rev. C)" - help - MPC860 CPUs, prior to Rev C have some bugs in the silicon, which - require workarounds for Linux (and most other OSes to work). If you - get a BUG() very early in boot, this might fix the problem. For - more details read the document entitled "MPC860 Family Device Errata - Reference" on Motorola's website. This option also incurs a - performance hit. - - If in doubt, say N here. - -choice - prompt "Microcode patch selection" - default NO_UCODE_PATCH - help - Help not implemented yet, coming soon. - -config NO_UCODE_PATCH - bool "None" - -config USB_SOF_UCODE_PATCH - bool "USB SOF patch" - help - Help not implemented yet, coming soon. - -config I2C_SPI_UCODE_PATCH - bool "I2C/SPI relocation patch" - help - Help not implemented yet, coming soon. - -config I2C_SPI_SMC1_UCODE_PATCH - bool "I2C/SPI/SMC1 relocation patch" - help - Help not implemented yet, coming soon. - -endchoice - -config UCODE_PATCH - bool - default y - depends on !NO_UCODE_PATCH - -endmenu - diff --git a/arch/ppc/8xx_io/Makefile b/arch/ppc/8xx_io/Makefile deleted file mode 100644 index 1051a06df7e..00000000000 --- a/arch/ppc/8xx_io/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for the linux MPC8xx ppc-specific parts of comm processor -# - -obj-y := commproc.o - -obj-$(CONFIG_FEC_ENET) += fec.o -obj-$(CONFIG_SCC_ENET) += enet.o -obj-$(CONFIG_UCODE_PATCH) += micropatch.o diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c deleted file mode 100644 index 752443df5ec..00000000000 --- a/arch/ppc/8xx_io/commproc.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - * General Purpose functions for the global management of the - * Communication Processor Module. - * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) - * - * In addition to the individual control of the communication - * channels, there are a few functions that globally affect the - * communication processor. - * - * Buffer descriptors must be allocated from the dual ported memory - * space. The allocator for that is here. When the communication - * process is reset, we reclaim the memory available. There is - * currently no deallocator for this memory. - * The amount of space available is platform dependent. On the - * MBX, the EPPC software loads additional microcode into the - * communication processor, and uses some of the DP ram for this - * purpose. Current, the first 512 bytes and the last 256 bytes of - * memory are used. Right now I am conservative and only use the - * memory that can never be used for microcode. If there are - * applications that require more DP ram, we can expand the boundaries - * but then we have to be careful of any downloaded microcode. - */ -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/dma-mapping.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <asm/mpc8xx.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/8xx_immap.h> -#include <asm/cpm1.h> -#include <asm/io.h> -#include <asm/tlbflush.h> -#include <asm/rheap.h> - -#define immr_map(member) \ -({ \ - u32 offset = offsetof(immap_t, member); \ - void *addr = ioremap (IMAP_ADDR + offset, \ - FIELD_SIZEOF(immap_t, member)); \ - addr; \ -}) - -#define immr_map_size(member, size) \ -({ \ - u32 offset = offsetof(immap_t, member); \ - void *addr = ioremap (IMAP_ADDR + offset, size); \ - addr; \ -}) - -static void m8xx_cpm_dpinit(void); -cpm8xx_t *cpmp; /* Pointer to comm processor space */ - -/* CPM interrupt vector functions. -*/ -struct cpm_action { - void (*handler)(void *); - void *dev_id; -}; -static struct cpm_action cpm_vecs[CPMVEC_NR]; -static irqreturn_t cpm_interrupt(int irq, void * dev); -static irqreturn_t cpm_error_interrupt(int irq, void *dev); -/* Define a table of names to identify CPM interrupt handlers in - * /proc/interrupts. - */ -const char *cpm_int_name[] = - { "error", "PC4", "PC5", "SMC2", - "SMC1", "SPI", "PC6", "Timer 4", - "", "PC7", "PC8", "PC9", - "Timer 3", "", "PC10", "PC11", - "I2C", "RISC Timer", "Timer 2", "", - "IDMA2", "IDMA1", "SDMA error", "PC12", - "PC13", "Timer 1", "PC14", "SCC4", - "SCC3", "SCC2", "SCC1", "PC15" - }; - -static void -cpm_mask_irq(unsigned int irq) -{ - int cpm_vec = irq - CPM_IRQ_OFFSET; - - clrbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, (1 << cpm_vec)); -} - -static void -cpm_unmask_irq(unsigned int irq) -{ - int cpm_vec = irq - CPM_IRQ_OFFSET; - - setbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, (1 << cpm_vec)); -} - -static void -cpm_ack(unsigned int irq) -{ - /* We do not need to do anything here. */ -} - -static void -cpm_eoi(unsigned int irq) -{ - int cpm_vec = irq - CPM_IRQ_OFFSET; - - out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr, (1 << cpm_vec)); -} - -struct hw_interrupt_type cpm_pic = { - .typename = " CPM ", - .enable = cpm_unmask_irq, - .disable = cpm_mask_irq, - .ack = cpm_ack, - .end = cpm_eoi, -}; - -void -m8xx_cpm_reset(void) -{ - volatile immap_t *imp; - volatile cpm8xx_t *commproc; - - imp = (immap_t *)IMAP_ADDR; - commproc = (cpm8xx_t *)&imp->im_cpm; - -#ifdef CONFIG_UCODE_PATCH - /* Perform a reset. - */ - commproc->cp_cpcr = (CPM_CR_RST | CPM_CR_FLG); - - /* Wait for it. - */ - while (commproc->cp_cpcr & CPM_CR_FLG); - - cpm_load_patch(imp); -#endif - - /* Set SDMA Bus Request priority 5. - * On 860T, this also enables FEC priority 6. I am not sure - * this is what we really want for some applications, but the - * manual recommends it. - * Bit 25, FAM can also be set to use FEC aggressive mode (860T). - */ - out_be32(&imp->im_siu_conf.sc_sdcr, 1), - - /* Reclaim the DP memory for our use. */ - m8xx_cpm_dpinit(); - - /* Tell everyone where the comm processor resides. - */ - cpmp = (cpm8xx_t *)commproc; -} - -/* This is called during init_IRQ. We used to do it above, but this - * was too early since init_IRQ was not yet called. - */ -static struct irqaction cpm_error_irqaction = { - .handler = cpm_error_interrupt, - .mask = CPU_MASK_NONE, -}; -static struct irqaction cpm_interrupt_irqaction = { - .handler = cpm_interrupt, - .mask = CPU_MASK_NONE, - .name = "CPM cascade", -}; - -void -cpm_interrupt_init(void) -{ - int i; - - /* Initialize the CPM interrupt controller. - */ - out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr, - (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) | - ((CPM_INTERRUPT/2) << 13) | CICR_HP_MASK); - out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, 0); - - /* install the CPM interrupt controller routines for the CPM - * interrupt vectors - */ - for ( i = CPM_IRQ_OFFSET ; i < CPM_IRQ_OFFSET + NR_CPM_INTS ; i++ ) - irq_desc[i].chip = &cpm_pic; - - /* Set our interrupt handler with the core CPU. */ - if (setup_irq(CPM_INTERRUPT, &cpm_interrupt_irqaction)) - panic("Could not allocate CPM IRQ!"); - - /* Install our own error handler. */ - cpm_error_irqaction.name = cpm_int_name[CPMVEC_ERROR]; - if (setup_irq(CPM_IRQ_OFFSET + CPMVEC_ERROR, &cpm_error_irqaction)) - panic("Could not allocate CPM error IRQ!"); - - setbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr, CICR_IEN); -} - -/* - * Get the CPM interrupt vector. - */ -int -cpm_get_irq(void) -{ - int cpm_vec; - - /* Get the vector by setting the ACK bit and then reading - * the register. - */ - out_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr, 1); - cpm_vec = in_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr); - cpm_vec >>= 11; - - return cpm_vec; -} - -/* CPM interrupt controller cascade interrupt. -*/ -static irqreturn_t -cpm_interrupt(int irq, void * dev) -{ - /* This interrupt handler never actually gets called. It is - * installed only to unmask the CPM cascade interrupt in the SIU - * and to make the CPM cascade interrupt visible in /proc/interrupts. - */ - return IRQ_HANDLED; -} - -/* The CPM can generate the error interrupt when there is a race condition - * between generating and masking interrupts. All we have to do is ACK it - * and return. This is a no-op function so we don't need any special - * tests in the interrupt handler. - */ -static irqreturn_t -cpm_error_interrupt(int irq, void *dev) -{ - return IRQ_HANDLED; -} - -/* A helper function to translate the handler prototype required by - * request_irq() to the handler prototype required by cpm_install_handler(). - */ -static irqreturn_t -cpm_handler_helper(int irq, void *dev_id) -{ - int cpm_vec = irq - CPM_IRQ_OFFSET; - - (*cpm_vecs[cpm_vec].handler)(dev_id); - - return IRQ_HANDLED; -} - -/* Install a CPM interrupt handler. - * This routine accepts a CPM interrupt vector in the range 0 to 31. - * This routine is retained for backward compatibility. Rather than using - * this routine to install a CPM interrupt handler, you can now use - * request_irq() with an IRQ in the range CPM_IRQ_OFFSET to - * CPM_IRQ_OFFSET + NR_CPM_INTS - 1 (16 to 47). - * - * Notice that the prototype of the interrupt handler function must be - * different depending on whether you install the handler with - * request_irq() or cpm_install_handler(). - */ -void -cpm_install_handler(int cpm_vec, void (*handler)(void *), void *dev_id) -{ - int err; - - /* If null handler, assume we are trying to free the IRQ. - */ - if (!handler) { - free_irq(CPM_IRQ_OFFSET + cpm_vec, dev_id); - return; - } - - if (cpm_vecs[cpm_vec].handler != 0) - printk(KERN_INFO "CPM interrupt %x replacing %x\n", - (uint)handler, (uint)cpm_vecs[cpm_vec].handler); - cpm_vecs[cpm_vec].handler = handler; - cpm_vecs[cpm_vec].dev_id = dev_id; - - if ((err = request_irq(CPM_IRQ_OFFSET + cpm_vec, cpm_handler_helper, - 0, cpm_int_name[cpm_vec], dev_id))) - printk(KERN_ERR "request_irq() returned %d for CPM vector %d\n", - err, cpm_vec); -} - -/* Free a CPM interrupt handler. - * This routine accepts a CPM interrupt vector in the range 0 to 31. - * This routine is retained for backward compatibility. - */ -void -cpm_free_handler(int cpm_vec) -{ - request_irq(CPM_IRQ_OFFSET + cpm_vec, NULL, 0, 0, - cpm_vecs[cpm_vec].dev_id); - - cpm_vecs[cpm_vec].handler = NULL; - cpm_vecs[cpm_vec].dev_id = NULL; -} - -/* Set a baud rate generator. This needs lots of work. There are - * four BRGs, any of which can be wired to any channel. - * The internal baud rate clock is the system clock divided by 16. - * This assumes the baudrate is 16x oversampled by the uart. - */ -#define BRG_INT_CLK (((bd_t *)__res)->bi_intfreq) -#define BRG_UART_CLK (BRG_INT_CLK/16) -#define BRG_UART_CLK_DIV16 (BRG_UART_CLK/16) - -void -cpm_setbrg(uint brg, uint rate) -{ - volatile uint *bp; - - /* This is good enough to get SMCs running..... - */ - bp = (uint *)&cpmp->cp_brgc1; - bp += brg; - /* The BRG has a 12-bit counter. For really slow baud rates (or - * really fast processors), we may have to further divide by 16. - */ - if (((BRG_UART_CLK / rate) - 1) < 4096) - *bp = (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN; - else - *bp = (((BRG_UART_CLK_DIV16 / rate) - 1) << 1) | - CPM_BRG_EN | CPM_BRG_DIV16; -} - -/* - * dpalloc / dpfree bits. - */ -static spinlock_t cpm_dpmem_lock; -/* - * 16 blocks should be enough to satisfy all requests - * until the memory subsystem goes up... - */ -static rh_block_t cpm_boot_dpmem_rh_block[16]; -static rh_info_t cpm_dpmem_info; - -#define CPM_DPMEM_ALIGNMENT 8 -static u8* dpram_vbase; -static uint dpram_pbase; - -void m8xx_cpm_dpinit(void) -{ - spin_lock_init(&cpm_dpmem_lock); - - dpram_vbase = immr_map_size(im_cpm.cp_dpmem, CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE); - dpram_pbase = (uint)&((immap_t *)IMAP_ADDR)->im_cpm.cp_dpmem; - - /* Initialize the info header */ - rh_init(&cpm_dpmem_info, CPM_DPMEM_ALIGNMENT, - sizeof(cpm_boot_dpmem_rh_block) / - sizeof(cpm_boot_dpmem_rh_block[0]), - cpm_boot_dpmem_rh_block); - - /* - * Attach the usable dpmem area. - * XXX: This is actually crap. CPM_DATAONLY_BASE and - * CPM_DATAONLY_SIZE are a subset of the available dparm. It varies - * with the processor and the microcode patches applied / activated. - * But the following should be at least safe. - */ - rh_attach_region(&cpm_dpmem_info, CPM_DATAONLY_BASE, CPM_DATAONLY_SIZE); -} - -/* - * Allocate the requested size worth of DP memory. - * This function returns an offset into the DPRAM area. - * Use cpm_dpram_addr() to get the virtual address of the area. - */ -unsigned long cpm_dpalloc(uint size, uint align) -{ - unsigned long start; - unsigned long flags; - - spin_lock_irqsave(&cpm_dpmem_lock, flags); - cpm_dpmem_info.alignment = align; - start = rh_alloc(&cpm_dpmem_info, size, "commproc"); - spin_unlock_irqrestore(&cpm_dpmem_lock, flags); - - return start; -} -EXPORT_SYMBOL(cpm_dpalloc); - -int cpm_dpfree(unsigned long offset) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&cpm_dpmem_lock, flags); - ret = rh_free(&cpm_dpmem_info, offset); - spin_unlock_irqrestore(&cpm_dpmem_lock, flags); - - return ret; -} -EXPORT_SYMBOL(cpm_dpfree); - -unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align) -{ - unsigned long start; - unsigned long flags; - - spin_lock_irqsave(&cpm_dpmem_lock, flags); - cpm_dpmem_info.alignment = align; - start = rh_alloc_fixed(&cpm_dpmem_info, offset, size, "commproc"); - spin_unlock_irqrestore(&cpm_dpmem_lock, flags); - - return start; -} -EXPORT_SYMBOL(cpm_dpalloc_fixed); - -void cpm_dpdump(void) -{ - rh_dump(&cpm_dpmem_info); -} -EXPORT_SYMBOL(cpm_dpdump); - -void *cpm_dpram_addr(unsigned long offset) -{ - return (void *)(dpram_vbase + offset); -} -EXPORT_SYMBOL(cpm_dpram_addr); - -uint cpm_dpram_phys(u8* addr) -{ - return (dpram_pbase + (uint)(addr - dpram_vbase)); -} -EXPORT_SYMBOL(cpm_dpram_phys); diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c deleted file mode 100644 index 5899aea1644..00000000000 --- a/arch/ppc/8xx_io/enet.c +++ /dev/null @@ -1,982 +0,0 @@ -/* - * Ethernet driver for Motorola MPC8xx. - * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) - * - * I copied the basic skeleton from the lance driver, because I did not - * know how to write the Linux driver, but I did know how the LANCE worked. - * - * This version of the driver is somewhat selectable for the different - * processor/board combinations. It works for the boards I know about - * now, and should be easily modified to include others. Some of the - * configuration information is contained in <asm/cpm1.h> and the - * remainder is here. - * - * Buffer descriptors are kept in the CPM dual port RAM, and the frame - * buffers are in the host memory. - * - * Right now, I am very watseful with the buffers. I allocate memory - * pages and then divide them into 2K frame buffers. This way I know I - * have buffers large enough to hold one frame within one buffer descriptor. - * Once I get this working, I will use 64 or 128 byte CPM buffers, which - * will be much more memory efficient and will easily handle lots of - * small packets. - * - */ -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/dma-mapping.h> -#include <linux/bitops.h> - -#include <asm/8xx_immap.h> -#include <asm/pgtable.h> -#include <asm/mpc8xx.h> -#include <asm/uaccess.h> -#include <asm/cpm1.h> -#include <asm/cacheflush.h> - -/* - * Theory of Operation - * - * The MPC8xx CPM performs the Ethernet processing on SCC1. It can use - * an aribtrary number of buffers on byte boundaries, but must have at - * least two receive buffers to prevent constant overrun conditions. - * - * The buffer descriptors are allocated from the CPM dual port memory - * with the data buffers allocated from host memory, just like all other - * serial communication protocols. The host memory buffers are allocated - * from the free page pool, and then divided into smaller receive and - * transmit buffers. The size of the buffers should be a power of two, - * since that nicely divides the page. This creates a ring buffer - * structure similar to the LANCE and other controllers. - * - * Like the LANCE driver: - * The driver runs as two independent, single-threaded flows of control. One - * is the send-packet routine, which enforces single-threaded use by the - * cep->tx_busy flag. The other thread is the interrupt handler, which is - * single threaded by the hardware and other software. - * - * The send packet thread has partial control over the Tx ring and the - * 'cep->tx_busy' flag. It sets the tx_busy flag whenever it's queuing a Tx - * packet. If the next queue slot is empty, it clears the tx_busy flag when - * finished otherwise it sets the 'lp->tx_full' flag. - * - * The MBX has a control register external to the MPC8xx that has some - * control of the Ethernet interface. Information is in the manual for - * your board. - * - * The RPX boards have an external control/status register. Consult the - * programming documents for details unique to your board. - * - * For the TQM8xx(L) modules, there is no control register interface. - * All functions are directly controlled using I/O pins. See <asm/cpm1.h>. - */ - -/* The transmitter timeout - */ -#define TX_TIMEOUT (2*HZ) - -/* The number of Tx and Rx buffers. These are allocated from the page - * pool. The code may assume these are power of two, so it is best - * to keep them that size. - * We don't need to allocate pages for the transmitter. We just use - * the skbuffer directly. - */ -#ifdef CONFIG_ENET_BIG_BUFFERS -#define CPM_ENET_RX_PAGES 32 -#define CPM_ENET_RX_FRSIZE 2048 -#define CPM_ENET_RX_FRPPG (PAGE_SIZE / CPM_ENET_RX_FRSIZE) -#define RX_RING_SIZE (CPM_ENET_RX_FRPPG * CPM_ENET_RX_PAGES) -#define TX_RING_SIZE 64 /* Must be power of two */ -#define TX_RING_MOD_MASK 63 /* for this to work */ -#else -#define CPM_ENET_RX_PAGES 4 -#define CPM_ENET_RX_FRSIZE 2048 -#define CPM_ENET_RX_FRPPG (PAGE_SIZE / CPM_ENET_RX_FRSIZE) -#define RX_RING_SIZE (CPM_ENET_RX_FRPPG * CPM_ENET_RX_PAGES) -#define TX_RING_SIZE 8 /* Must be power of two */ -#define TX_RING_MOD_MASK 7 /* for this to work */ -#endif - -/* The CPM stores dest/src/type, data, and checksum for receive packets. - */ -#define PKT_MAXBUF_SIZE 1518 -#define PKT_MINBUF_SIZE 64 -#define PKT_MAXBLR_SIZE 1520 - -/* The CPM buffer descriptors track the ring buffers. The rx_bd_base and - * tx_bd_base always point to the base of the buffer descriptors. The - * cur_rx and cur_tx point to the currently available buffer. - * The dirty_tx tracks the current buffer that is being sent by the - * controller. The cur_tx and dirty_tx are equal under both completely - * empty and completely full conditions. The empty/ready indicator in - * the buffer descriptor determines the actual condition. - */ -struct scc_enet_private { - /* The saved address of a sent-in-place packet/buffer, for skfree(). */ - struct sk_buff* tx_skbuff[TX_RING_SIZE]; - ushort skb_cur; - ushort skb_dirty; - - /* CPM dual port RAM relative addresses. - */ - cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */ - cbd_t *tx_bd_base; - cbd_t *cur_rx, *cur_tx; /* The next free ring entry */ - cbd_t *dirty_tx; /* The ring entries to be free()ed. */ - scc_t *sccp; - - /* Virtual addresses for the receive buffers because we can't - * do a __va() on them anymore. - */ - unsigned char *rx_vaddr[RX_RING_SIZE]; - struct net_device_stats stats; - uint tx_full; - spinlock_t lock; -}; - -static int scc_enet_open(struct net_device *dev); -static int scc_enet_start_xmit(struct sk_buff *skb, struct net_device *dev); -static int scc_enet_rx(struct net_device *dev); -static void scc_enet_interrupt(void *dev_id); -static int scc_enet_close(struct net_device *dev); -static struct net_device_stats *scc_enet_get_stats(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); - -/* Get this from various configuration locations (depends on board). -*/ -/*static ushort my_enet_addr[] = { 0x0800, 0x3e26, 0x1559 };*/ - -/* Typically, 860(T) boards use SCC1 for Ethernet, and other 8xx boards - * use SCC2. Some even may use SCC3. - * This is easily extended if necessary. - */ -#if defined(CONFIG_SCC3_ENET) -#define CPM_CR_ENET CPM_CR_CH_SCC3 -#define PROFF_ENET PROFF_SCC3 -#define SCC_ENET 2 /* Index, not number! */ -#define CPMVEC_ENET CPMVEC_SCC3 -#elif defined(CONFIG_SCC2_ENET) -#define CPM_CR_ENET CPM_CR_CH_SCC2 -#define PROFF_ENET PROFF_SCC2 -#define SCC_ENET 1 /* Index, not number! */ -#define CPMVEC_ENET CPMVEC_SCC2 -#elif defined(CONFIG_SCC1_ENET) -#define CPM_CR_ENET CPM_CR_CH_SCC1 -#define PROFF_ENET PROFF_SCC1 -#define SCC_ENET 0 /* Index, not number! */ -#define CPMVEC_ENET CPMVEC_SCC1 -#else -#error CONFIG_SCCx_ENET not defined -#endif - -static int -scc_enet_open(struct net_device *dev) -{ - - /* I should reset the ring buffers here, but I don't yet know - * a simple way to do that. - */ - - netif_start_queue(dev); - return 0; /* Always succeed */ -} - -static int -scc_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct scc_enet_private *cep = (struct scc_enet_private *)dev->priv; - volatile cbd_t *bdp; - - /* Fill in a Tx ring entry */ - bdp = cep->cur_tx; - -#ifndef final_version - if (bdp->cbd_sc & BD_ENET_TX_READY) { - /* Ooops. All transmit buffers are full. Bail out. - * This should not happen, since cep->tx_busy should be set. - */ - printk("%s: tx queue full!.\n", dev->name); - return 1; - } -#endif - - /* Clear all of the status flags. - */ - bdp->cbd_sc &= ~BD_ENET_TX_STATS; - - /* If the frame is short, tell CPM to pad it. - */ - if (skb->len <= ETH_ZLEN) - bdp->cbd_sc |= BD_ENET_TX_PAD; - else - bdp->cbd_sc &= ~BD_ENET_TX_PAD; - - /* Set buffer length and buffer pointer. - */ - bdp->cbd_datlen = skb->len; - bdp->cbd_bufaddr = __pa(skb->data); - - /* Save skb pointer. - */ - cep->tx_skbuff[cep->skb_cur] = skb; - - cep->stats.tx_bytes += skb->len; - cep->skb_cur = (cep->skb_cur+1) & TX_RING_MOD_MASK; - - /* Push the data cache so the CPM does not get stale memory - * data. - */ - flush_dcache_range((unsigned long)(skb->data), - (unsigned long)(skb->data + skb->len)); - - spin_lock_irq(&cep->lock); - - /* Send it on its way. Tell CPM its ready, interrupt when done, - * its the last BD of the frame, and to put the CRC on the end. - */ - bdp->cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_INTR | BD_ENET_TX_LAST | BD_ENET_TX_TC); - - dev->trans_start = jiffies; - - /* If this was the last BD in the ring, start at the beginning again. - */ - if (bdp->cbd_sc & BD_ENET_TX_WRAP) - bdp = cep->tx_bd_base; - else - bdp++; - - if (bdp->cbd_sc & BD_ENET_TX_READY) { - netif_stop_queue(dev); - cep->tx_full = 1; - } - - cep->cur_tx = (cbd_t *)bdp; - - spin_unlock_irq(&cep->lock); - - return 0; -} - -static void -scc_enet_timeout(struct net_device *dev) -{ - struct scc_enet_private *cep = (struct scc_enet_private *)dev->priv; - - printk("%s: transmit timed out.\n", dev->name); - cep->stats.tx_errors++; -#ifndef final_version - { - int i; - cbd_t *bdp; - printk(" Ring data dump: cur_tx %p%s cur_rx %p.\n", - cep->cur_tx, cep->tx_full ? " (full)" : "", - cep->cur_rx); - bdp = cep->tx_bd_base; - for (i = 0 ; i < TX_RING_SIZE; i++, bdp++) - printk("%04x %04x %08x\n", - bdp->cbd_sc, - bdp->cbd_datlen, - bdp->cbd_bufaddr); - bdp = cep->rx_bd_base; - for (i = 0 ; i < RX_RING_SIZE; i++, bdp++) - printk("%04x %04x %08x\n", - bdp->cbd_sc, - bdp->cbd_datlen, - bdp->cbd_bufaddr); - } -#endif - if (!cep->tx_full) - netif_wake_queue(dev); -} - -/* The interrupt handler. - * This is called from the CPM handler, not the MPC core interrupt. - */ -static void -scc_enet_interrupt(void *dev_id) -{ - struct net_device *dev = dev_id; - volatile struct scc_enet_private *cep; - volatile cbd_t *bdp; - ushort int_events; - int must_restart; - - cep = (struct scc_enet_private *)dev->priv; - - /* Get the interrupt events that caused us to be here. - */ - int_events = cep->sccp->scc_scce; - cep->sccp->scc_scce = int_events; - must_restart = 0; - - /* Handle receive event in its own function. - */ - if (int_events & SCCE_ENET_RXF) - scc_enet_rx(dev_id); - - /* Check for a transmit error. The manual is a little unclear - * about this, so the debug code until I get it figured out. It - * appears that if TXE is set, then TXB is not set. However, - * if carrier sense is lost during frame transmission, the TXE - * bit is set, "and continues the buffer transmission normally." - * I don't know if "normally" implies TXB is set when the buffer - * descriptor is closed.....trial and error :-). - */ - - /* Transmit OK, or non-fatal error. Update the buffer descriptors. - */ - if (int_events & (SCCE_ENET_TXE | SCCE_ENET_TXB)) { - spin_lock(&cep->lock); - bdp = cep->dirty_tx; - while ((bdp->cbd_sc&BD_ENET_TX_READY)==0) { - if ((bdp==cep->cur_tx) && (cep->tx_full == 0)) - break; - - if (bdp->cbd_sc & BD_ENET_TX_HB) /* No heartbeat */ - cep->stats.tx_heartbeat_errors++; - if (bdp->cbd_sc & BD_ENET_TX_LC) /* Late collision */ - cep->stats.tx_window_errors++; - if (bdp->cbd_sc & BD_ENET_TX_RL) /* Retrans limit */ - cep->stats.tx_aborted_errors++; - if (bdp->cbd_sc & BD_ENET_TX_UN) /* Underrun */ - cep->stats.tx_fifo_errors++; - if (bdp->cbd_sc & BD_ENET_TX_CSL) /* Carrier lost */ - cep->stats.tx_carrier_errors++; - - - /* No heartbeat or Lost carrier are not really bad errors. - * The others require a restart transmit command. - */ - if (bdp->cbd_sc & - (BD_ENET_TX_LC | BD_ENET_TX_RL | BD_ENET_TX_UN)) { - must_restart = 1; - cep->stats.tx_errors++; - } - - cep->stats.tx_packets++; - - /* Deferred means some collisions occurred during transmit, - * but we eventually sent the packet OK. - */ - if (bdp->cbd_sc & BD_ENET_TX_DEF) - cep->stats.collisions++; - - /* Free the sk buffer associated with this last transmit. - */ - dev_kfree_skb_irq(cep->tx_skbuff[cep->skb_dirty]); - cep->skb_dirty = (cep->skb_dirty + 1) & TX_RING_MOD_MASK; - - /* Update pointer to next buffer descriptor to be transmitted. - */ - if (bdp->cbd_sc & BD_ENET_TX_WRAP) - bdp = cep->tx_bd_base; - else - bdp++; - - /* I don't know if we can be held off from processing these - * interrupts for more than one frame time. I really hope - * not. In such a case, we would now want to check the - * currently available BD (cur_tx) and determine if any - * buffers between the dirty_tx and cur_tx have also been - * sent. We would want to process anything in between that - * does not have BD_ENET_TX_READY set. - */ - - /* Since we have freed up a buffer, the ring is no longer - * full. - */ - if (cep->tx_full) { - cep->tx_full = 0; - if (netif_queue_stopped(dev)) - netif_wake_queue(dev); - } - - cep->dirty_tx = (cbd_t *)bdp; - } - - if (must_restart) { - volatile cpm8xx_t *cp; - - /* Some transmit errors cause the transmitter to shut - * down. We now issue a restart transmit. Since the - * errors close the BD and update the pointers, the restart - * _should_ pick up without having to reset any of our - * pointers either. - */ - cp = cpmp; - cp->cp_cpcr = - mk_cr_cmd(CPM_CR_ENET, CPM_CR_RESTART_TX) | CPM_CR_FLG; - while (cp->cp_cpcr & CPM_CR_FLG); - } - spin_unlock(&cep->lock); - } - - /* Check for receive busy, i.e. packets coming but no place to - * put them. This "can't happen" because the receive interrupt - * is tossing previous frames. - */ - if (int_events & SCCE_ENET_BSY) { - cep->stats.rx_dropped++; - printk("CPM ENET: BSY can't happen.\n"); - } - - return; -} - -/* During a receive, the cur_rx points to the current incoming buffer. - * When we update through the ring, if the next incoming buffer has - * not been given to the system, we just set the empty indicator, - * effectively tossing the packet. - */ -static int -scc_enet_rx(struct net_device *dev) -{ - struct scc_enet_private *cep; - volatile cbd_t *bdp; - struct sk_buff *skb; - ushort pkt_len; - - cep = (struct scc_enet_private *)dev->priv; - - /* First, grab all of the stats for the incoming packet. - * These get messed up if we get called due to a busy condition. - */ - bdp = cep->cur_rx; - -for (;;) { - if (bdp->cbd_sc & BD_ENET_RX_EMPTY) - break; - -#ifndef final_version - /* Since we have allocated space to hold a complete frame, both - * the first and last indicators should be set. - */ - if ((bdp->cbd_sc & (BD_ENET_RX_FIRST | BD_ENET_RX_LAST)) != - (BD_ENET_RX_FIRST | BD_ENET_RX_LAST)) - printk("CPM ENET: rcv is not first+last\n"); -#endif - - /* Frame too long or too short. - */ - if (bdp->cbd_sc & (BD_ENET_RX_LG | BD_ENET_RX_SH)) - cep->stats.rx_length_errors++; - if (bdp->cbd_sc & BD_ENET_RX_NO) /* Frame alignment */ - cep->stats.rx_frame_errors++; - if (bdp->cbd_sc & BD_ENET_RX_CR) /* CRC Error */ - cep->stats.rx_crc_errors++; - if (bdp->cbd_sc & BD_ENET_RX_OV) /* FIFO overrun */ - cep->stats.rx_crc_errors++; - - /* Report late collisions as a frame error. - * On this error, the BD is closed, but we don't know what we - * have in the buffer. So, just drop this frame on the floor. - */ - if (bdp->cbd_sc & BD_ENET_RX_CL) { - cep->stats.rx_frame_errors++; - } - else { - - /* Process the incoming frame. - */ - cep->stats.rx_packets++; - pkt_len = bdp->cbd_datlen; - cep->stats.rx_bytes += pkt_len; - - /* This does 16 byte alignment, much more than we need. - * The packet length includes FCS, but we don't want to - * include that when passing upstream as it messes up - * bridging applications. - */ - skb = dev_alloc_skb(pkt_len-4); - - if (skb == NULL) { - printk("%s: Memory squeeze, dropping packet.\n", dev->name); - cep->stats.rx_dropped++; - } - else { - skb_put(skb,pkt_len-4); /* Make room */ - skb_copy_to_linear_data(skb, - cep->rx_vaddr[bdp - cep->rx_bd_base], - pkt_len-4); - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - } - } - - /* Clear the status flags for this buffer. - */ - bdp->cbd_sc &= ~BD_ENET_RX_STATS; - - /* Mark the buffer empty. - */ - bdp->cbd_sc |= BD_ENET_RX_EMPTY; - - /* Update BD pointer to next entry. - */ - if (bdp->cbd_sc & BD_ENET_RX_WRAP) - bdp = cep->rx_bd_base; - else - bdp++; - - } - cep->cur_rx = (cbd_t *)bdp; - - return 0; -} - -static int -scc_enet_close(struct net_device *dev) -{ - /* Don't know what to do yet. - */ - netif_stop_queue(dev); - - return 0; -} - -static struct net_device_stats *scc_enet_get_stats(struct net_device *dev) -{ - struct scc_enet_private *cep = (struct scc_enet_private *)dev->priv; - - return &cep->stats; -} - -/* Set or clear the multicast filter for this adaptor. - * Skeleton taken from sunlance driver. - * The CPM Ethernet implementation allows Multicast as well as individual - * MAC address filtering. Some of the drivers check to make sure it is - * a group multicast address, and discard those that are not. I guess I - * will do the same for now, but just remove the test if you want - * individual filtering as well (do the upper net layers want or support - * this kind of feature?). - */ - -static void set_multicast_list(struct net_device *dev) -{ - struct scc_enet_private *cep; - struct dev_mc_list *dmi; - u_char *mcptr, *tdptr; - volatile scc_enet_t *ep; - int i, j; - cep = (struct scc_enet_private *)dev->priv; - - /* Get pointer to SCC area in parameter RAM. - */ - ep = (scc_enet_t *)dev->base_addr; - - if (dev->flags&IFF_PROMISC) { - - /* Log any net taps. */ - printk("%s: Promiscuous mode enabled.\n", dev->name); - cep->sccp->scc_psmr |= SCC_PSMR_PRO; - } else { - - cep->sccp->scc_psmr &= ~SCC_PSMR_PRO; - - if (dev->flags & IFF_ALLMULTI) { - /* Catch all multicast addresses, so set the - * filter to all 1's. - */ - ep->sen_gaddr1 = 0xffff; - ep->sen_gaddr2 = 0xffff; - ep->sen_gaddr3 = 0xffff; - ep->sen_gaddr4 = 0xffff; - } - else { - /* Clear filter and add the addresses in the list. - */ - ep->sen_gaddr1 = 0; - ep->sen_gaddr2 = 0; - ep->sen_gaddr3 = 0; - ep->sen_gaddr4 = 0; - - dmi = dev->mc_list; - - for (i=0; i<dev->mc_count; i++) { - - /* Only support group multicast for now. - */ - if (!(dmi->dmi_addr[0] & 1)) - continue; - - /* The address in dmi_addr is LSB first, - * and taddr is MSB first. We have to - * copy bytes MSB first from dmi_addr. - */ - mcptr = (u_char *)dmi->dmi_addr + 5; - tdptr = (u_char *)&ep->sen_taddrh; - for (j=0; j<6; j++) - *tdptr++ = *mcptr--; - - /* Ask CPM to run CRC and set bit in - * filter mask. - */ - cpmp->cp_cpcr = mk_cr_cmd(CPM_CR_ENET, CPM_CR_SET_GADDR) | CPM_CR_FLG; - /* this delay is necessary here -- Cort */ - udelay(10); - while (cpmp->cp_cpcr & CPM_CR_FLG); - } - } - } -} - -/* Initialize the CPM Ethernet on SCC. If EPPC-Bug loaded us, or performed - * some other network I/O, a whole bunch of this has already been set up. - * It is no big deal if we do it again, we just have to disable the - * transmit and receive to make sure we don't catch the CPM with some - * inconsistent control information. - */ -static int __init scc_enet_init(void) -{ - struct net_device *dev; - struct scc_enet_private *cep; - int i, j, k, err; - uint dp_offset; - unsigned char *eap, *ba; - dma_addr_t mem_addr; - bd_t *bd; - volatile cbd_t *bdp; - volatile cpm8xx_t *cp; - volatile scc_t *sccp; - volatile scc_enet_t *ep; - volatile immap_t *immap; - - cp = cpmp; /* Get pointer to Communication Processor */ - - immap = (immap_t *)(mfspr(SPRN_IMMR) & 0xFFFF0000); /* and to internal registers */ - - bd = (bd_t *)__res; - - dev = alloc_etherdev(sizeof(*cep)); - if (!dev) - return -ENOMEM; - - cep = dev->priv; - spin_lock_init(&cep->lock); - - /* Get pointer to SCC area in parameter RAM. - */ - ep = (scc_enet_t *)(&cp->cp_dparam[PROFF_ENET]); - - /* And another to the SCC register area. - */ - sccp = (volatile scc_t *)(&cp->cp_scc[SCC_ENET]); - cep->sccp = (scc_t *)sccp; /* Keep the pointer handy */ - - /* Disable receive and transmit in case EPPC-Bug started it. - */ - sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); - - /* Cookbook style from the MPC860 manual..... - * Not all of this is necessary if EPPC-Bug has initialized - * the network. - * So far we are lucky, all board configurations use the same - * pins, or at least the same I/O Port for these functions..... - * It can't last though...... - */ - -#if (defined(PA_ENET_RXD) && defined(PA_ENET_TXD)) - /* Configure port A pins for Txd and Rxd. - */ - immap->im_ioport.iop_papar |= (PA_ENET_RXD | PA_ENET_TXD); - immap->im_ioport.iop_padir &= ~(PA_ENET_RXD | PA_ENET_TXD); - immap->im_ioport.iop_paodr &= ~PA_ENET_TXD; -#elif (defined(PB_ENET_RXD) && defined(PB_ENET_TXD)) - /* Configure port B pins for Txd and Rxd. - */ - immap->im_cpm.cp_pbpar |= (PB_ENET_RXD | PB_ENET_TXD); - immap->im_cpm.cp_pbdir &= ~(PB_ENET_RXD | PB_ENET_TXD); - immap->im_cpm.cp_pbodr &= ~PB_ENET_TXD; -#else -#error Exactly ONE pair of PA_ENET_[RT]XD, PB_ENET_[RT]XD must be defined -#endif - -#if defined(PC_ENET_LBK) - /* Configure port C pins to disable External Loopback - */ - immap->im_ioport.iop_pcpar &= ~PC_ENET_LBK; - immap->im_ioport.iop_pcdir |= PC_ENET_LBK; - immap->im_ioport.iop_pcso &= ~PC_ENET_LBK; - immap->im_ioport.iop_pcdat &= ~PC_ENET_LBK; /* Disable Loopback */ -#endif /* PC_ENET_LBK */ - -#ifdef PE_ENET_TCLK - /* Configure port E for TCLK and RCLK. - */ - cp->cp_pepar |= (PE_ENET_TCLK | PE_ENET_RCLK); - cp->cp_pedir &= ~(PE_ENET_TCLK | PE_ENET_RCLK); - cp->cp_peso &= ~(PE_ENET_TCLK | PE_ENET_RCLK); -#else - /* Configure port A for TCLK and RCLK. - */ - immap->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK); - immap->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK); -#endif - - /* Configure port C pins to enable CLSN and RENA. - */ - immap->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA); - immap->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA); - immap->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA); - - /* Configure Serial Interface clock routing. - * First, clear all SCC bits to zero, then set the ones we want. - */ - cp->cp_sicr &= ~SICR_ENET_MASK; - cp->cp_sicr |= SICR_ENET_CLKRT; - - /* Manual says set SDDR, but I can't find anything with that - * name. I think it is a misprint, and should be SDCR. This - * has already been set by the communication processor initialization. - */ - - /* Allocate space for the buffer descriptors in the DP ram. - * These are relative offsets in the DP ram address space. - * Initialize base addresses for the buffer descriptors. - */ - dp_offset = cpm_dpalloc(sizeof(cbd_t) * RX_RING_SIZE, 8); - ep->sen_genscc.scc_rbase = dp_offset; - cep->rx_bd_base = cpm_dpram_addr(dp_offset); - - dp_offset = cpm_dpalloc(sizeof(cbd_t) * TX_RING_SIZE, 8); - ep->sen_genscc.scc_tbase = dp_offset; - cep->tx_bd_base = cpm_dpram_addr(dp_offset); - - cep->dirty_tx = cep->cur_tx = cep->tx_bd_base; - cep->cur_rx = cep->rx_bd_base; - - /* Issue init Rx BD command for SCC. - * Manual says to perform an Init Rx parameters here. We have - * to perform both Rx and Tx because the SCC may have been - * already running. - * In addition, we have to do it later because we don't yet have - * all of the BD control/status set properly. - cp->cp_cpcr = mk_cr_cmd(CPM_CR_ENET, CPM_CR_INIT_RX) | CPM_CR_FLG; - while (cp->cp_cpcr & CPM_CR_FLG); - */ - - /* Initialize function code registers for big-endian. - */ - ep->sen_genscc.scc_rfcr = SCC_EB; - ep->sen_genscc.scc_tfcr = SCC_EB; - - /* Set maximum bytes per receive buffer. - * This appears to be an Ethernet frame size, not the buffer - * fragment size. It must be a multiple of four. - */ - ep->sen_genscc.scc_mrblr = PKT_MAXBLR_SIZE; - - /* Set CRC preset and mask. - */ - ep->sen_cpres = 0xffffffff; - ep->sen_cmask = 0xdebb20e3; - - ep->sen_crcec = 0; /* CRC Error counter */ - ep->sen_alec = 0; /* alignment error counter */ - ep->sen_disfc = 0; /* discard frame counter */ - - ep->sen_pads = 0x8888; /* Tx short frame pad character */ - ep->sen_retlim = 15; /* Retry limit threshold */ - - ep->sen_maxflr = PKT_MAXBUF_SIZE; /* maximum frame length register */ - ep->sen_minflr = PKT_MINBUF_SIZE; /* minimum frame length register */ - - ep->sen_maxd1 = PKT_MAXBLR_SIZE; /* maximum DMA1 length */ - ep->sen_maxd2 = PKT_MAXBLR_SIZE; /* maximum DMA2 length */ - - /* Clear hash tables. - */ - ep->sen_gaddr1 = 0; - ep->sen_gaddr2 = 0; - ep->sen_gaddr3 = 0; - ep->sen_gaddr4 = 0; - ep->sen_iaddr1 = 0; - ep->sen_iaddr2 = 0; - ep->sen_iaddr3 = 0; - ep->sen_iaddr4 = 0; - - /* Set Ethernet station address. - */ - eap = (unsigned char *)&(ep->sen_paddrh); - for (i=5; i>=0; i--) - *eap++ = dev->dev_addr[i] = bd->bi_enetaddr[i]; - - ep->sen_pper = 0; /* 'cause the book says so */ - ep->sen_taddrl = 0; /* temp address (LSB) */ - ep->sen_taddrm = 0; - ep->sen_taddrh = 0; /* temp address (MSB) */ - - /* Now allocate the host memory pages and initialize the - * buffer descriptors. - */ - bdp = cep->tx_bd_base; - for (i=0; i<TX_RING_SIZE; i++) { - - /* Initialize the BD for every fragment in the page. - */ - bdp->cbd_sc = 0; - bdp->cbd_bufaddr = 0; - bdp++; - } - - /* Set the last buffer to wrap. - */ - bdp--; - bdp->cbd_sc |= BD_SC_WRAP; - - bdp = cep->rx_bd_base; - k = 0; - for (i=0; i<CPM_ENET_RX_PAGES; i++) { - - /* Allocate a page. - */ - ba = (unsigned char *)dma_alloc_coherent(NULL, PAGE_SIZE, - &mem_addr, GFP_KERNEL); - /* BUG: no check for failure */ - - /* Initialize the BD for every fragment in the page. - */ - for (j=0; j<CPM_ENET_RX_FRPPG; j++) { - bdp->cbd_sc = BD_ENET_RX_EMPTY | BD_ENET_RX_INTR; - bdp->cbd_bufaddr = mem_addr; - cep->rx_vaddr[k++] = ba; - mem_addr += CPM_ENET_RX_FRSIZE; - ba += CPM_ENET_RX_FRSIZE; - bdp++; - } - } - - /* Set the last buffer to wrap. - */ - bdp--; - bdp->cbd_sc |= BD_SC_WRAP; - - /* Let's re-initialize the channel now. We have to do it later - * than the manual describes because we have just now finished - * the BD initialization. - */ - cp->cp_cpcr = mk_cr_cmd(CPM_CR_ENET, CPM_CR_INIT_TRX) | CPM_CR_FLG; - while (cp->cp_cpcr & CPM_CR_FLG); - - cep->skb_cur = cep->skb_dirty = 0; - - sccp->scc_scce = 0xffff; /* Clear any pending events */ - - /* Enable interrupts for transmit error, complete frame - * received, and any transmit buffer we have also set the - * interrupt flag. - */ - sccp->scc_sccm = (SCCE_ENET_TXE | SCCE_ENET_RXF | SCCE_ENET_TXB); - - /* Install our interrupt handler. - */ - cpm_install_handler(CPMVEC_ENET, scc_enet_interrupt, dev); - - /* Set GSMR_H to enable all normal operating modes. - * Set GSMR_L to enable Ethernet to MC68160. - */ - sccp->scc_gsmrh = 0; - sccp->scc_gsmrl = (SCC_GSMRL_TCI | SCC_GSMRL_TPL_48 | SCC_GSMRL_TPP_10 | SCC_GSMRL_MODE_ENET); - - /* Set sync/delimiters. - */ - sccp->scc_dsr = 0xd555; - - /* Set processing mode. Use Ethernet CRC, catch broadcast, and - * start frame search 22 bit times after RENA. - */ - sccp->scc_psmr = (SCC_PSMR_ENCRC | SCC_PSMR_NIB22); - - /* It is now OK to enable the Ethernet transmitter. - * Unfortunately, there are board implementation differences here. - */ -#if (!defined (PB_ENET_TENA) && defined (PC_ENET_TENA) && !defined (PE_ENET_TENA)) - immap->im_ioport.iop_pcpar |= PC_ENET_TENA; - immap->im_ioport.iop_pcdir &= ~PC_ENET_TENA; -#elif ( defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && !defined (PE_ENET_TENA)) - cp->cp_pbpar |= PB_ENET_TENA; - cp->cp_pbdir |= PB_ENET_TENA; -#elif ( !defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && defined (PE_ENET_TENA)) - cp->cp_pepar |= PE_ENET_TENA; - cp->cp_pedir &= ~PE_ENET_TENA; - cp->cp_peso |= PE_ENET_TENA; -#else -#error Configuration Error: define exactly ONE of PB_ENET_TENA, PC_ENET_TENA, PE_ENET_TENA -#endif - -#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC) - /* And while we are here, set the configuration to enable ethernet. - */ - *((volatile uint *)RPX_CSR_ADDR) &= ~BCSR0_ETHLPBK; - *((volatile uint *)RPX_CSR_ADDR) |= - (BCSR0_ETHEN | BCSR0_COLTESTDIS | BCSR0_FULLDPLXDIS); -#endif - -#ifdef CONFIG_BSEIP - /* BSE uses port B and C for PHY control. - */ - cp->cp_pbpar &= ~(PB_BSE_POWERUP | PB_BSE_FDXDIS); - cp->cp_pbdir |= (PB_BSE_POWERUP | PB_BSE_FDXDIS); - cp->cp_pbdat |= (PB_BSE_POWERUP | PB_BSE_FDXDIS); - - immap->im_ioport.iop_pcpar &= ~PC_BSE_LOOPBACK; - immap->im_ioport.iop_pcdir |= PC_BSE_LOOPBACK; - immap->im_ioport.iop_pcso &= ~PC_BSE_LOOPBACK; - immap->im_ioport.iop_pcdat &= ~PC_BSE_LOOPBACK; -#endif - -#ifdef CONFIG_FADS - cp->cp_pbpar |= PB_ENET_TENA; - cp->cp_pbdir |= PB_ENET_TENA; - - /* Enable the EEST PHY. - */ - *((volatile uint *)BCSR1) &= ~BCSR1_ETHEN; -#endif - - dev->base_addr = (unsigned long)ep; -#if 0 - dev->name = "CPM_ENET"; -#endif - - /* The CPM Ethernet specific entries in the device structure. */ - dev->open = scc_enet_open; - dev->hard_start_xmit = scc_enet_start_xmit; - dev->tx_timeout = scc_enet_timeout; - dev->watchdog_timeo = TX_TIMEOUT; - dev->stop = scc_enet_close; - dev->get_stats = scc_enet_get_stats; - dev->set_multicast_list = set_multicast_list; - - err = register_netdev(dev); - if (err) { - free_netdev(dev); - return err; - } - - /* And last, enable the transmit and receive processing. - */ - sccp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT); - - printk("%s: CPM ENET Version 0.2 on SCC%d, ", dev->name, SCC_ENET+1); - for (i=0; i<5; i++) - printk("%02x:", dev->dev_addr[i]); - printk("%02x\n", dev->dev_addr[5]); - - return 0; -} - -module_init(scc_enet_init); - diff --git a/arch/ppc/8xx_io/fec.c b/arch/ppc/8xx_io/fec.c deleted file mode 100644 index 2c604d4f6e8..00000000000 --- a/arch/ppc/8xx_io/fec.c +++ /dev/null @@ -1,1983 +0,0 @@ -/* - * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx. - * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) - * - * This version of the driver is specific to the FADS implementation, - * since the board contains control registers external to the processor - * for the control of the LevelOne LXT970 transceiver. The MPC860T manual - * describes connections using the internal parallel port I/O, which - * is basically all of Port D. - * - * Includes support for the following PHYs: QS6612, LXT970, LXT971/2. - * - * Right now, I am very wasteful with the buffers. I allocate memory - * pages and then divide them into 2K frame buffers. This way I know I - * have buffers large enough to hold one frame within one buffer descriptor. - * Once I get this working, I will use 64 or 128 byte CPM buffers, which - * will be much more memory efficient and will easily handle lots of - * small packets. - * - * Much better multiple PHY support by Magnus Damm. - * Copyright (c) 2000 Ericsson Radio Systems AB. - * - * Make use of MII for PHY control configurable. - * Some fixes. - * Copyright (c) 2000-2002 Wolfgang Denk, DENX Software Engineering. - * - * Support for AMD AM79C874 added. - * Thomas Lange, thomas@corelatus.com - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#ifdef CONFIG_FEC_PACKETHOOK -#include <linux/pkthook.h> -#endif - -#include <asm/8xx_immap.h> -#include <asm/pgtable.h> -#include <asm/mpc8xx.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/cpm1.h> - -#ifdef CONFIG_USE_MDIO -/* Forward declarations of some structures to support different PHYs -*/ - -typedef struct { - uint mii_data; - void (*funct)(uint mii_reg, struct net_device *dev); -} phy_cmd_t; - -typedef struct { - uint id; - char *name; - - const phy_cmd_t *config; - const phy_cmd_t *startup; - const phy_cmd_t *ack_int; - const phy_cmd_t *shutdown; -} phy_info_t; -#endif /* CONFIG_USE_MDIO */ - -/* The number of Tx and Rx buffers. These are allocated from the page - * pool. The code may assume these are power of two, so it is best - * to keep them that size. - * We don't need to allocate pages for the transmitter. We just use - * the skbuffer directly. - */ -#ifdef CONFIG_ENET_BIG_BUFFERS -#define FEC_ENET_RX_PAGES 16 -#define FEC_ENET_RX_FRSIZE 2048 -#define FEC_ENET_RX_FRPPG (PAGE_SIZE / FEC_ENET_RX_FRSIZE) -#define RX_RING_SIZE (FEC_ENET_RX_FRPPG * FEC_ENET_RX_PAGES) -#define TX_RING_SIZE 16 /* Must be power of two */ -#define TX_RING_MOD_MASK 15 /* for this to work */ -#else -#define FEC_ENET_RX_PAGES 4 -#define FEC_ENET_RX_FRSIZE 2048 -#define FEC_ENET_RX_FRPPG (PAGE_SIZE / FEC_ENET_RX_FRSIZE) -#define RX_RING_SIZE (FEC_ENET_RX_FRPPG * FEC_ENET_RX_PAGES) -#define TX_RING_SIZE 8 /* Must be power of two */ -#define TX_RING_MOD_MASK 7 /* for this to work */ -#endif - -/* Interrupt events/masks. -*/ -#define FEC_ENET_HBERR ((uint)0x80000000) /* Heartbeat error */ -#define FEC_ENET_BABR ((uint)0x40000000) /* Babbling receiver */ -#define FEC_ENET_BABT ((uint)0x20000000) /* Babbling transmitter */ -#define FEC_ENET_GRA ((uint)0x10000000) /* Graceful stop complete */ -#define FEC_ENET_TXF ((uint)0x08000000) /* Full frame transmitted */ -#define FEC_ENET_TXB ((uint)0x04000000) /* A buffer was transmitted */ -#define FEC_ENET_RXF ((uint)0x02000000) /* Full frame received */ -#define FEC_ENET_RXB ((uint)0x01000000) /* A buffer was received */ -#define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */ -#define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */ - -/* -*/ -#define FEC_ECNTRL_PINMUX 0x00000004 -#define FEC_ECNTRL_ETHER_EN 0x00000002 -#define FEC_ECNTRL_RESET 0x00000001 - -#define FEC_RCNTRL_BC_REJ 0x00000010 -#define FEC_RCNTRL_PROM 0x00000008 -#define FEC_RCNTRL_MII_MODE 0x00000004 -#define FEC_RCNTRL_DRT 0x00000002 -#define FEC_RCNTRL_LOOP 0x00000001 - -#define FEC_TCNTRL_FDEN 0x00000004 -#define FEC_TCNTRL_HBC 0x00000002 -#define FEC_TCNTRL_GTS 0x00000001 - -/* Delay to wait for FEC reset command to complete (in us) -*/ -#define FEC_RESET_DELAY 50 - -/* The FEC stores dest/src/type, data, and checksum for receive packets. - */ -#define PKT_MAXBUF_SIZE 1518 -#define PKT_MINBUF_SIZE 64 -#define PKT_MAXBLR_SIZE 1520 - -/* The FEC buffer descriptors track the ring buffers. The rx_bd_base and - * tx_bd_base always point to the base of the buffer descriptors. The - * cur_rx and cur_tx point to the currently available buffer. - * The dirty_tx tracks the current buffer that is being sent by the - * controller. The cur_tx and dirty_tx are equal under both completely - * empty and completely full conditions. The empty/ready indicator in - * the buffer descriptor determines the actual condition. - */ -struct fec_enet_private { - /* The saved address of a sent-in-place packet/buffer, for skfree(). */ - struct sk_buff* tx_skbuff[TX_RING_SIZE]; - ushort skb_cur; - ushort skb_dirty; - - /* CPM dual port RAM relative addresses. - */ - cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */ - cbd_t *tx_bd_base; - cbd_t *cur_rx, *cur_tx; /* The next free ring entry */ - cbd_t *dirty_tx; /* The ring entries to be free()ed. */ - - /* Virtual addresses for the receive buffers because we can't - * do a __va() on them anymore. - */ - unsigned char *rx_vaddr[RX_RING_SIZE]; - - struct net_device_stats stats; - uint tx_full; - spinlock_t lock; - -#ifdef CONFIG_USE_MDIO - uint phy_id; - uint phy_id_done; - uint phy_status; - uint phy_speed; - phy_info_t *phy; - struct work_struct phy_task; - struct net_device *dev; - - uint sequence_done; - - uint phy_addr; -#endif /* CONFIG_USE_MDIO */ - - int link; - int old_link; - int full_duplex; - -#ifdef CONFIG_FEC_PACKETHOOK - unsigned long ph_lock; - fec_ph_func *ph_rxhandler; - fec_ph_func *ph_txhandler; - __u16 ph_proto; - volatile __u32 *ph_regaddr; - void *ph_priv; -#endif -}; - -static int fec_enet_open(struct net_device *dev); -static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev); -#ifdef CONFIG_USE_MDIO -static void fec_enet_mii(struct net_device *dev); -#endif /* CONFIG_USE_MDIO */ -#ifdef CONFIG_FEC_PACKETHOOK -static void fec_enet_tx(struct net_device *dev, __u32 regval); -static void fec_enet_rx(struct net_device *dev, __u32 regval); -#else -static void fec_enet_tx(struct net_device *dev); -static void fec_enet_rx(struct net_device *dev); -#endif -static int fec_enet_close(struct net_device *dev); -static struct net_device_stats *fec_enet_get_stats(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); -static void fec_restart(struct net_device *dev, int duplex); -static void fec_stop(struct net_device *dev); -static ushort my_enet_addr[3]; - -#ifdef CONFIG_USE_MDIO -/* MII processing. We keep this as simple as possible. Requests are - * placed on the list (if there is room). When the request is finished - * by the MII, an optional function may be called. - */ -typedef struct mii_list { - uint mii_regval; - void (*mii_func)(uint val, struct net_device *dev); - struct mii_list *mii_next; -} mii_list_t; - -#define NMII 20 -mii_list_t mii_cmds[NMII]; -mii_list_t *mii_free; -mii_list_t *mii_head; -mii_list_t *mii_tail; - -static int mii_queue(struct net_device *dev, int request, - void (*func)(uint, struct net_device *)); - -/* Make MII read/write commands for the FEC. -*/ -#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18)) -#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | \ - (VAL & 0xffff)) -#define mk_mii_end 0 -#endif /* CONFIG_USE_MDIO */ - -/* Transmitter timeout. -*/ -#define TX_TIMEOUT (2*HZ) - -#ifdef CONFIG_USE_MDIO -/* Register definitions for the PHY. -*/ - -#define MII_REG_CR 0 /* Control Register */ -#define MII_REG_SR 1 /* Status Register */ -#define MII_REG_PHYIR1 2 /* PHY Identification Register 1 */ -#define MII_REG_PHYIR2 3 /* PHY Identification Register 2 */ -#define MII_REG_ANAR 4 /* A-N Advertisement Register */ -#define MII_REG_ANLPAR 5 /* A-N Link Partner Ability Register */ -#define MII_REG_ANER 6 /* A-N Expansion Register */ -#define MII_REG_ANNPTR 7 /* A-N Next Page Transmit Register */ -#define MII_REG_ANLPRNPR 8 /* A-N Link Partner Received Next Page Reg. */ - -/* values for phy_status */ - -#define PHY_CONF_ANE 0x0001 /* 1 auto-negotiation enabled */ -#define PHY_CONF_LOOP 0x0002 /* 1 loopback mode enabled */ -#define PHY_CONF_SPMASK 0x00f0 /* mask for speed */ -#define PHY_CONF_10HDX 0x0010 /* 10 Mbit half duplex supported */ -#define PHY_CONF_10FDX 0x0020 /* 10 Mbit full duplex supported */ -#define PHY_CONF_100HDX 0x0040 /* 100 Mbit half duplex supported */ -#define PHY_CONF_100FDX 0x0080 /* 100 Mbit full duplex supported */ - -#define PHY_STAT_LINK 0x0100 /* 1 up - 0 down */ -#define PHY_STAT_FAULT 0x0200 /* 1 remote fault */ -#define PHY_STAT_ANC 0x0400 /* 1 auto-negotiation complete */ -#define PHY_STAT_SPMASK 0xf000 /* mask for speed */ -#define PHY_STAT_10HDX 0x1000 /* 10 Mbit half duplex selected */ -#define PHY_STAT_10FDX 0x2000 /* 10 Mbit full duplex selected */ -#define PHY_STAT_100HDX 0x4000 /* 100 Mbit half duplex selected */ -#define PHY_STAT_100FDX 0x8000 /* 100 Mbit full duplex selected */ -#endif /* CONFIG_USE_MDIO */ - -#ifdef CONFIG_FEC_PACKETHOOK -int -fec_register_ph(struct net_device *dev, fec_ph_func *rxfun, fec_ph_func *txfun, - __u16 proto, volatile __u32 *regaddr, void *priv) -{ - struct fec_enet_private *fep; - int retval = 0; - - fep = dev->priv; - - if (test_and_set_bit(0, (void*)&fep->ph_lock) != 0) { - /* Someone is messing with the packet hook */ - return -EAGAIN; - } - if (fep->ph_rxhandler != NULL || fep->ph_txhandler != NULL) { - retval = -EBUSY; - goto out; - } - fep->ph_rxhandler = rxfun; - fep->ph_txhandler = txfun; - fep->ph_proto = proto; - fep->ph_regaddr = regaddr; - fep->ph_priv = priv; - - out: - fep->ph_lock = 0; - - return retval; -} - - -int -fec_unregister_ph(struct net_device *dev) -{ - struct fec_enet_private *fep; - int retval = 0; - - fep = dev->priv; - - if (test_and_set_bit(0, (void*)&fep->ph_lock) != 0) { - /* Someone is messing with the packet hook */ - return -EAGAIN; - } - - fep->ph_rxhandler = fep->ph_txhandler = NULL; - fep->ph_proto = 0; - fep->ph_regaddr = NULL; - fep->ph_priv = NULL; - - fep->ph_lock = 0; - - return retval; -} - -EXPORT_SYMBOL(fec_register_ph); -EXPORT_SYMBOL(fec_unregister_ph); - -#endif /* CONFIG_FEC_PACKETHOOK */ - -static int -fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct fec_enet_private *fep; - volatile fec_t *fecp; - volatile cbd_t *bdp; - - fep = dev->priv; - fecp = (volatile fec_t*)dev->base_addr; - - if (!fep->link) { - /* Link is down or autonegotiation is in progress. */ - return 1; - } - - /* Fill in a Tx ring entry */ - bdp = fep->cur_tx; - -#ifndef final_version - if (bdp->cbd_sc & BD_ENET_TX_READY) { - /* Ooops. All transmit buffers are full. Bail out. - * This should not happen, since dev->tbusy should be set. - */ - printk("%s: tx queue full!.\n", dev->name); - return 1; - } -#endif - - /* Clear all of the status flags. - */ - bdp->cbd_sc &= ~BD_ENET_TX_STATS; - - /* Set buffer length and buffer pointer. - */ - bdp->cbd_bufaddr = __pa(skb->data); - bdp->cbd_datlen = skb->len; - - /* Save skb pointer. - */ - fep->tx_skbuff[fep->skb_cur] = skb; - - fep->stats.tx_bytes += skb->len; - fep->skb_cur = (fep->skb_cur+1) & TX_RING_MOD_MASK; - - /* Push the data cache so the CPM does not get stale memory - * data. - */ - flush_dcache_range((unsigned long)skb->data, - (unsigned long)skb->data + skb->len); - - /* disable interrupts while triggering transmit */ - spin_lock_irq(&fep->lock); - - /* Send it on its way. Tell FEC its ready, interrupt when done, - * its the last BD of the frame, and to put the CRC on the end. - */ - - bdp->cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_INTR - | BD_ENET_TX_LAST | BD_ENET_TX_TC); - - dev->trans_start = jiffies; - - /* Trigger transmission start */ - fecp->fec_x_des_active = 0x01000000; - - /* If this was the last BD in the ring, start at the beginning again. - */ - if (bdp->cbd_sc & BD_ENET_TX_WRAP) { - bdp = fep->tx_bd_base; - } else { - bdp++; - } - - if (bdp->cbd_sc & BD_ENET_TX_READY) { - netif_stop_queue(dev); - fep->tx_full = 1; - } - - fep->cur_tx = (cbd_t *)bdp; - - spin_unlock_irq(&fep->lock); - - return 0; -} - -static void -fec_timeout(struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - - printk("%s: transmit timed out.\n", dev->name); - fep->stats.tx_errors++; -#ifndef final_version - { - int i; - cbd_t *bdp; - - printk("Ring data dump: cur_tx %lx%s, dirty_tx %lx cur_rx: %lx\n", - (unsigned long)fep->cur_tx, fep->tx_full ? " (full)" : "", - (unsigned long)fep->dirty_tx, - (unsigned long)fep->cur_rx); - - bdp = fep->tx_bd_base; - printk(" tx: %u buffers\n", TX_RING_SIZE); - for (i = 0 ; i < TX_RING_SIZE; i++) { - printk(" %08x: %04x %04x %08x\n", - (uint) bdp, - bdp->cbd_sc, - bdp->cbd_datlen, - bdp->cbd_bufaddr); - bdp++; - } - - bdp = fep->rx_bd_base; - printk(" rx: %lu buffers\n", RX_RING_SIZE); - for (i = 0 ; i < RX_RING_SIZE; i++) { - printk(" %08x: %04x %04x %08x\n", - (uint) bdp, - bdp->cbd_sc, - bdp->cbd_datlen, - bdp->cbd_bufaddr); - bdp++; - } - } -#endif - if (!fep->tx_full) - netif_wake_queue(dev); -} - -/* The interrupt handler. - * This is called from the MPC core interrupt. - */ -static irqreturn_t -fec_enet_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - volatile fec_t *fecp; - uint int_events; -#ifdef CONFIG_FEC_PACKETHOOK - struct fec_enet_private *fep = dev->priv; - __u32 regval; - - if (fep->ph_regaddr) regval = *fep->ph_regaddr; -#endif - fecp = (volatile fec_t*)dev->base_addr; - - /* Get the interrupt events that caused us to be here. - */ - while ((int_events = fecp->fec_ievent) != 0) { - fecp->fec_ievent = int_events; - if ((int_events & (FEC_ENET_HBERR | FEC_ENET_BABR | - FEC_ENET_BABT | FEC_ENET_EBERR)) != 0) { - printk("FEC ERROR %x\n", int_events); - } - - /* Handle receive event in its own function. - */ - if (int_events & FEC_ENET_RXF) { -#ifdef CONFIG_FEC_PACKETHOOK - fec_enet_rx(dev, regval); -#else - fec_enet_rx(dev); -#endif - } - - /* Transmit OK, or non-fatal error. Update the buffer - descriptors. FEC handles all errors, we just discover - them as part of the transmit process. - */ - if (int_events & FEC_ENET_TXF) { -#ifdef CONFIG_FEC_PACKETHOOK - fec_enet_tx(dev, regval); -#else - fec_enet_tx(dev); -#endif - } - - if (int_events & FEC_ENET_MII) { -#ifdef CONFIG_USE_MDIO - fec_enet_mii(dev); -#else -printk("%s[%d] %s: unexpected FEC_ENET_MII event\n", __FILE__, __LINE__, __func__); -#endif /* CONFIG_USE_MDIO */ - } - - } - return IRQ_RETVAL(IRQ_HANDLED); -} - - -static void -#ifdef CONFIG_FEC_PACKETHOOK -fec_enet_tx(struct net_device *dev, __u32 regval) -#else -fec_enet_tx(struct net_device *dev) -#endif -{ - struct fec_enet_private *fep; - volatile cbd_t *bdp; - struct sk_buff *skb; - - fep = dev->priv; - /* lock while transmitting */ - spin_lock(&fep->lock); - bdp = fep->dirty_tx; - - while ((bdp->cbd_sc&BD_ENET_TX_READY) == 0) { - if (bdp == fep->cur_tx && fep->tx_full == 0) break; - - skb = fep->tx_skbuff[fep->skb_dirty]; - /* Check for errors. */ - if (bdp->cbd_sc & (BD_ENET_TX_HB | BD_ENET_TX_LC | - BD_ENET_TX_RL | BD_ENET_TX_UN | - BD_ENET_TX_CSL)) { - fep->stats.tx_errors++; - if (bdp->cbd_sc & BD_ENET_TX_HB) /* No heartbeat */ - fep->stats.tx_heartbeat_errors++; - if (bdp->cbd_sc & BD_ENET_TX_LC) /* Late collision */ - fep->stats.tx_window_errors++; - if (bdp->cbd_sc & BD_ENET_TX_RL) /* Retrans limit */ - fep->stats.tx_aborted_errors++; - if (bdp->cbd_sc & BD_ENET_TX_UN) /* Underrun */ - fep->stats.tx_fifo_errors++; - if (bdp->cbd_sc & BD_ENET_TX_CSL) /* Carrier lost */ - fep->stats.tx_carrier_errors++; - } else { -#ifdef CONFIG_FEC_PACKETHOOK - /* Packet hook ... */ - if (fep->ph_txhandler && - ((struct ethhdr *)skb->data)->h_proto - == fep->ph_proto) { - fep->ph_txhandler((__u8*)skb->data, skb->len, - regval, fep->ph_priv); - } -#endif - fep->stats.tx_packets++; - } - -#ifndef final_version - if (bdp->cbd_sc & BD_ENET_TX_READY) - printk("HEY! Enet xmit interrupt and TX_READY.\n"); -#endif - /* Deferred means some collisions occurred during transmit, - * but we eventually sent the packet OK. - */ - if (bdp->cbd_sc & BD_ENET_TX_DEF) - fep->stats.collisions++; - - /* Free the sk buffer associated with this last transmit. - */ -#if 0 -printk("TXI: %x %x %x\n", bdp, skb, fep->skb_dirty); -#endif - dev_kfree_skb_irq (skb/*, FREE_WRITE*/); - fep->tx_skbuff[fep->skb_dirty] = NULL; - fep->skb_dirty = (fep->skb_dirty + 1) & TX_RING_MOD_MASK; - - /* Update pointer to next buffer descriptor to be transmitted. - */ - if (bdp->cbd_sc & BD_ENET_TX_WRAP) - bdp = fep->tx_bd_base; - else - bdp++; - - /* Since we have freed up a buffer, the ring is no longer - * full. - */ - if (fep->tx_full) { - fep->tx_full = 0; - if (netif_queue_stopped(dev)) - netif_wake_queue(dev); - } -#ifdef CONFIG_FEC_PACKETHOOK - /* Re-read register. Not exactly guaranteed to be correct, - but... */ - if (fep->ph_regaddr) regval = *fep->ph_regaddr; -#endif - } - fep->dirty_tx = (cbd_t *)bdp; - spin_unlock(&fep->lock); -} - - -/* During a receive, the cur_rx points to the current incoming buffer. - * When we update through the ring, if the next incoming buffer has - * not been given to the system, we just set the empty indicator, - * effectively tossing the packet. - */ -static void -#ifdef CONFIG_FEC_PACKETHOOK -fec_enet_rx(struct net_device *dev, __u32 regval) -#else -fec_enet_rx(struct net_device *dev) -#endif -{ - struct fec_enet_private *fep; - volatile fec_t *fecp; - volatile cbd_t *bdp; - struct sk_buff *skb; - ushort pkt_len; - __u8 *data; - - fep = dev->priv; - fecp = (volatile fec_t*)dev->base_addr; - - /* First, grab all of the stats for the incoming packet. - * These get messed up if we get called due to a busy condition. - */ - bdp = fep->cur_rx; - -while (!(bdp->cbd_sc & BD_ENET_RX_EMPTY)) { - -#ifndef final_version - /* Since we have allocated space to hold a complete frame, - * the last indicator should be set. - */ - if ((bdp->cbd_sc & BD_ENET_RX_LAST) == 0) - printk("FEC ENET: rcv is not +last\n"); -#endif - - /* Check for errors. */ - if (bdp->cbd_sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO | - BD_ENET_RX_CR | BD_ENET_RX_OV)) { - fep->stats.rx_errors++; - if (bdp->cbd_sc & (BD_ENET_RX_LG | BD_ENET_RX_SH)) { - /* Frame too long or too short. */ - fep->stats.rx_length_errors++; - } - if (bdp->cbd_sc & BD_ENET_RX_NO) /* Frame alignment */ - fep->stats.rx_frame_errors++; - if (bdp->cbd_sc & BD_ENET_RX_CR) /* CRC Error */ - fep->stats.rx_crc_errors++; - if (bdp->cbd_sc & BD_ENET_RX_OV) /* FIFO overrun */ - fep->stats.rx_crc_errors++; - } - - /* Report late collisions as a frame error. - * On this error, the BD is closed, but we don't know what we - * have in the buffer. So, just drop this frame on the floor. - */ - if (bdp->cbd_sc & BD_ENET_RX_CL) { - fep->stats.rx_errors++; - fep->stats.rx_frame_errors++; - goto rx_processing_done; - } - - /* Process the incoming frame. - */ - fep->stats.rx_packets++; - pkt_len = bdp->cbd_datlen; - fep->stats.rx_bytes += pkt_len; - data = fep->rx_vaddr[bdp - fep->rx_bd_base]; - -#ifdef CONFIG_FEC_PACKETHOOK - /* Packet hook ... */ - if (fep->ph_rxhandler) { - if (((struct ethhdr *)data)->h_proto == fep->ph_proto) { - switch (fep->ph_rxhandler(data, pkt_len, regval, - fep->ph_priv)) { - case 1: - goto rx_processing_done; - break; - case 0: - break; - default: - fep->stats.rx_errors++; - goto rx_processing_done; - } - } - } - - /* If it wasn't filtered - copy it to an sk buffer. */ -#endif - - /* This does 16 byte alignment, exactly what we need. - * The packet length includes FCS, but we don't want to - * include that when passing upstream as it messes up - * bridging applications. - */ - skb = dev_alloc_skb(pkt_len-4); - - if (skb == NULL) { - printk("%s: Memory squeeze, dropping packet.\n", dev->name); - fep->stats.rx_dropped++; - } else { - skb_put(skb,pkt_len-4); /* Make room */ - skb_copy_to_linear_data(skb, data, pkt_len-4); - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - } - rx_processing_done: - - /* Clear the status flags for this buffer. - */ - bdp->cbd_sc &= ~BD_ENET_RX_STATS; - - /* Mark the buffer empty. - */ - bdp->cbd_sc |= BD_ENET_RX_EMPTY; - - /* Update BD pointer to next entry. - */ - if (bdp->cbd_sc & BD_ENET_RX_WRAP) - bdp = fep->rx_bd_base; - else - bdp++; - -#if 1 - /* Doing this here will keep the FEC running while we process - * incoming frames. On a heavily loaded network, we should be - * able to keep up at the expense of system resources. - */ - fecp->fec_r_des_active = 0x01000000; -#endif -#ifdef CONFIG_FEC_PACKETHOOK - /* Re-read register. Not exactly guaranteed to be correct, - but... */ - if (fep->ph_regaddr) regval = *fep->ph_regaddr; -#endif - } /* while (!(bdp->cbd_sc & BD_ENET_RX_EMPTY)) */ - fep->cur_rx = (cbd_t *)bdp; - -#if 0 - /* Doing this here will allow us to process all frames in the - * ring before the FEC is allowed to put more there. On a heavily - * loaded network, some frames may be lost. Unfortunately, this - * increases the interrupt overhead since we can potentially work - * our way back to the interrupt return only to come right back - * here. - */ - fecp->fec_r_des_active = 0x01000000; -#endif -} - - -#ifdef CONFIG_USE_MDIO -static void -fec_enet_mii(struct net_device *dev) -{ - struct fec_enet_private *fep; - volatile fec_t *ep; - mii_list_t *mip; - uint mii_reg; - - fep = (struct fec_enet_private *)dev->priv; - ep = &(((immap_t *)IMAP_ADDR)->im_cpm.cp_fec); - mii_reg = ep->fec_mii_data; - - if ((mip = mii_head) == NULL) { - printk("MII and no head!\n"); - return; - } - - if (mip->mii_func != NULL) - (*(mip->mii_func))(mii_reg, dev); - - mii_head = mip->mii_next; - mip->mii_next = mii_free; - mii_free = mip; - - if ((mip = mii_head) != NULL) { - ep->fec_mii_data = mip->mii_regval; - - } -} - -static int -mii_queue(struct net_device *dev, int regval, void (*func)(uint, struct net_device *)) -{ - struct fec_enet_private *fep; - unsigned long flags; - mii_list_t *mip; - int retval; - - /* Add PHY address to register command. - */ - fep = dev->priv; - regval |= fep->phy_addr << 23; - - retval = 0; - - /* lock while modifying mii_list */ - spin_lock_irqsave(&fep->lock, flags); - - if ((mip = mii_free) != NULL) { - mii_free = mip->mii_next; - mip->mii_regval = regval; - mip->mii_func = func; - mip->mii_next = NULL; - if (mii_head) { - mii_tail->mii_next = mip; - mii_tail = mip; - } else { - mii_head = mii_tail = mip; - (&(((immap_t *)IMAP_ADDR)->im_cpm.cp_fec))->fec_mii_data = regval; - } - } else { - retval = 1; - } - - spin_unlock_irqrestore(&fep->lock, flags); - - return(retval); -} - -static void mii_do_cmd(struct net_device *dev, const phy_cmd_t *c) -{ - int k; - - if(!c) - return; - - for(k = 0; (c+k)->mii_data != mk_mii_end; k++) - mii_queue(dev, (c+k)->mii_data, (c+k)->funct); -} - -static void mii_parse_sr(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_STAT_LINK | PHY_STAT_FAULT | PHY_STAT_ANC); - - if (mii_reg & 0x0004) - *s |= PHY_STAT_LINK; - if (mii_reg & 0x0010) - *s |= PHY_STAT_FAULT; - if (mii_reg & 0x0020) - *s |= PHY_STAT_ANC; - - fep->link = (*s & PHY_STAT_LINK) ? 1 : 0; -} - -static void mii_parse_cr(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_CONF_ANE | PHY_CONF_LOOP); - - if (mii_reg & 0x1000) - *s |= PHY_CONF_ANE; - if (mii_reg & 0x4000) - *s |= PHY_CONF_LOOP; -} - -static void mii_parse_anar(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_CONF_SPMASK); - - if (mii_reg & 0x0020) - *s |= PHY_CONF_10HDX; - if (mii_reg & 0x0040) - *s |= PHY_CONF_10FDX; - if (mii_reg & 0x0080) - *s |= PHY_CONF_100HDX; - if (mii_reg & 0x00100) - *s |= PHY_CONF_100FDX; -} -#if 0 -static void mii_disp_reg(uint mii_reg, struct net_device *dev) -{ - printk("reg %u = 0x%04x\n", (mii_reg >> 18) & 0x1f, mii_reg & 0xffff); -} -#endif - -/* ------------------------------------------------------------------------- */ -/* The Level one LXT970 is used by many boards */ - -#ifdef CONFIG_FEC_LXT970 - -#define MII_LXT970_MIRROR 16 /* Mirror register */ -#define MII_LXT970_IER 17 /* Interrupt Enable Register */ -#define MII_LXT970_ISR 18 /* Interrupt Status Register */ -#define MII_LXT970_CONFIG 19 /* Configuration Register */ -#define MII_LXT970_CSR 20 /* Chip Status Register */ - -static void mii_parse_lxt970_csr(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_STAT_SPMASK); - - if (mii_reg & 0x0800) { - if (mii_reg & 0x1000) - *s |= PHY_STAT_100FDX; - else - *s |= PHY_STAT_100HDX; - } - else { - if (mii_reg & 0x1000) - *s |= PHY_STAT_10FDX; - else - *s |= PHY_STAT_10HDX; - } -} - -static phy_info_t phy_info_lxt970 = { - 0x07810000, - "LXT970", - - (const phy_cmd_t []) { /* config */ -#if 0 -// { mk_mii_write(MII_REG_ANAR, 0x0021), NULL }, - - /* Set default operation of 100-TX....for some reason - * some of these bits are set on power up, which is wrong. - */ - { mk_mii_write(MII_LXT970_CONFIG, 0), NULL }, -#endif - { mk_mii_read(MII_REG_CR), mii_parse_cr }, - { mk_mii_read(MII_REG_ANAR), mii_parse_anar }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* startup - enable interrupts */ - { mk_mii_write(MII_LXT970_IER, 0x0002), NULL }, - { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */ - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* ack_int */ - /* read SR and ISR to acknowledge */ - - { mk_mii_read(MII_REG_SR), mii_parse_sr }, - { mk_mii_read(MII_LXT970_ISR), NULL }, - - /* find out the current status */ - - { mk_mii_read(MII_LXT970_CSR), mii_parse_lxt970_csr }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* shutdown - disable interrupts */ - { mk_mii_write(MII_LXT970_IER, 0x0000), NULL }, - { mk_mii_end, } - }, -}; - -#endif /* CONFIG_FEC_LXT970 */ - -/* ------------------------------------------------------------------------- */ -/* The Level one LXT971 is used on some of my custom boards */ - -#ifdef CONFIG_FEC_LXT971 - -/* register definitions for the 971 */ - -#define MII_LXT971_PCR 16 /* Port Control Register */ -#define MII_LXT971_SR2 17 /* Status Register 2 */ -#define MII_LXT971_IER 18 /* Interrupt Enable Register */ -#define MII_LXT971_ISR 19 /* Interrupt Status Register */ -#define MII_LXT971_LCR 20 /* LED Control Register */ -#define MII_LXT971_TCR 30 /* Transmit Control Register */ - -/* - * I had some nice ideas of running the MDIO faster... - * The 971 should support 8MHz and I tried it, but things acted really - * weird, so 2.5 MHz ought to be enough for anyone... - */ - -static void mii_parse_lxt971_sr2(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_STAT_SPMASK); - - if (mii_reg & 0x4000) { - if (mii_reg & 0x0200) - *s |= PHY_STAT_100FDX; - else - *s |= PHY_STAT_100HDX; - } - else { - if (mii_reg & 0x0200) - *s |= PHY_STAT_10FDX; - else - *s |= PHY_STAT_10HDX; - } - if (mii_reg & 0x0008) - *s |= PHY_STAT_FAULT; -} - -static phy_info_t phy_info_lxt971 = { - 0x0001378e, - "LXT971", - - (const phy_cmd_t []) { /* config */ -// { mk_mii_write(MII_REG_ANAR, 0x021), NULL }, /* 10 Mbps, HD */ - { mk_mii_read(MII_REG_CR), mii_parse_cr }, - { mk_mii_read(MII_REG_ANAR), mii_parse_anar }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* startup - enable interrupts */ - { mk_mii_write(MII_LXT971_IER, 0x00f2), NULL }, - { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */ - - /* Somehow does the 971 tell me that the link is down - * the first read after power-up. - * read here to get a valid value in ack_int */ - - { mk_mii_read(MII_REG_SR), mii_parse_sr }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* ack_int */ - /* find out the current status */ - - { mk_mii_read(MII_REG_SR), mii_parse_sr }, - { mk_mii_read(MII_LXT971_SR2), mii_parse_lxt971_sr2 }, - - /* we only need to read ISR to acknowledge */ - - { mk_mii_read(MII_LXT971_ISR), NULL }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* shutdown - disable interrupts */ - { mk_mii_write(MII_LXT971_IER, 0x0000), NULL }, - { mk_mii_end, } - }, -}; - -#endif /* CONFIG_FEC_LXT970 */ - - -/* ------------------------------------------------------------------------- */ -/* The Quality Semiconductor QS6612 is used on the RPX CLLF */ - -#ifdef CONFIG_FEC_QS6612 - -/* register definitions */ - -#define MII_QS6612_MCR 17 /* Mode Control Register */ -#define MII_QS6612_FTR 27 /* Factory Test Register */ -#define MII_QS6612_MCO 28 /* Misc. Control Register */ -#define MII_QS6612_ISR 29 /* Interrupt Source Register */ -#define MII_QS6612_IMR 30 /* Interrupt Mask Register */ -#define MII_QS6612_PCR 31 /* 100BaseTx PHY Control Reg. */ - -static void mii_parse_qs6612_pcr(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - *s &= ~(PHY_STAT_SPMASK); - - switch((mii_reg >> 2) & 7) { - case 1: *s |= PHY_STAT_10HDX; break; - case 2: *s |= PHY_STAT_100HDX; break; - case 5: *s |= PHY_STAT_10FDX; break; - case 6: *s |= PHY_STAT_100FDX; break; - } -} - -static phy_info_t phy_info_qs6612 = { - 0x00181440, - "QS6612", - - (const phy_cmd_t []) { /* config */ -// { mk_mii_write(MII_REG_ANAR, 0x061), NULL }, /* 10 Mbps */ - - /* The PHY powers up isolated on the RPX, - * so send a command to allow operation. - */ - - { mk_mii_write(MII_QS6612_PCR, 0x0dc0), NULL }, - - /* parse cr and anar to get some info */ - - { mk_mii_read(MII_REG_CR), mii_parse_cr }, - { mk_mii_read(MII_REG_ANAR), mii_parse_anar }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* startup - enable interrupts */ - { mk_mii_write(MII_QS6612_IMR, 0x003a), NULL }, - { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */ - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* ack_int */ - - /* we need to read ISR, SR and ANER to acknowledge */ - - { mk_mii_read(MII_QS6612_ISR), NULL }, - { mk_mii_read(MII_REG_SR), mii_parse_sr }, - { mk_mii_read(MII_REG_ANER), NULL }, - - /* read pcr to get info */ - - { mk_mii_read(MII_QS6612_PCR), mii_parse_qs6612_pcr }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* shutdown - disable interrupts */ - { mk_mii_write(MII_QS6612_IMR, 0x0000), NULL }, - { mk_mii_end, } - }, -}; - -#endif /* CONFIG_FEC_QS6612 */ - -/* ------------------------------------------------------------------------- */ -/* The Advanced Micro Devices AM79C874 is used on the ICU862 */ - -#ifdef CONFIG_FEC_AM79C874 - -/* register definitions for the 79C874 */ - -#define MII_AM79C874_MFR 16 /* Miscellaneous Features Register */ -#define MII_AM79C874_ICSR 17 /* Interrupt Control/Status Register */ -#define MII_AM79C874_DR 18 /* Diagnostic Register */ -#define MII_AM79C874_PMLR 19 /* Power Management & Loopback Register */ -#define MII_AM79C874_MCR 21 /* Mode Control Register */ -#define MII_AM79C874_DC 23 /* Disconnect Counter */ -#define MII_AM79C874_REC 24 /* Receiver Error Counter */ - -static void mii_parse_amd79c874_dr(uint mii_reg, struct net_device *dev, uint data) -{ - volatile struct fec_enet_private *fep = dev->priv; - uint s = fep->phy_status; - - s &= ~(PHY_STAT_SPMASK); - - /* Register 18: Bit 10 is data rate, 11 is Duplex */ - switch ((mii_reg >> 10) & 3) { - case 0: s |= PHY_STAT_10HDX; break; - case 1: s |= PHY_STAT_100HDX; break; - case 2: s |= PHY_STAT_10FDX; break; - case 3: s |= PHY_STAT_100FDX; break; - } - - fep->phy_status = s; -} - -static phy_info_t phy_info_amd79c874 = { - 0x00022561, - "AM79C874", - - (const phy_cmd_t []) { /* config */ -// { mk_mii_write(MII_REG_ANAR, 0x021), NULL }, /* 10 Mbps, HD */ - { mk_mii_read(MII_REG_CR), mii_parse_cr }, - { mk_mii_read(MII_REG_ANAR), mii_parse_anar }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* startup - enable interrupts */ - { mk_mii_write(MII_AM79C874_ICSR, 0xff00), NULL }, - { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */ - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* ack_int */ - /* find out the current status */ - - { mk_mii_read(MII_REG_SR), mii_parse_sr }, - { mk_mii_read(MII_AM79C874_DR), mii_parse_amd79c874_dr }, - - /* we only need to read ICSR to acknowledge */ - - { mk_mii_read(MII_AM79C874_ICSR), NULL }, - { mk_mii_end, } - }, - (const phy_cmd_t []) { /* shutdown - disable interrupts */ - { mk_mii_write(MII_AM79C874_ICSR, 0x0000), NULL }, - { mk_mii_end, } - }, -}; - -#endif /* CONFIG_FEC_AM79C874 */ - -static phy_info_t *phy_info[] = { - -#ifdef CONFIG_FEC_LXT970 - &phy_info_lxt970, -#endif /* CONFIG_FEC_LXT970 */ - -#ifdef CONFIG_FEC_LXT971 - &phy_info_lxt971, -#endif /* CONFIG_FEC_LXT971 */ - -#ifdef CONFIG_FEC_QS6612 - &phy_info_qs6612, -#endif /* CONFIG_FEC_QS6612 */ - -#ifdef CONFIG_FEC_AM79C874 - &phy_info_amd79c874, -#endif /* CONFIG_FEC_AM79C874 */ - - NULL -}; - -static void mii_display_status(struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - volatile uint *s = &(fep->phy_status); - - if (!fep->link && !fep->old_link) { - /* Link is still down - don't print anything */ - return; - } - - printk("%s: status: ", dev->name); - - if (!fep->link) { - printk("link down"); - } else { - printk("link up"); - - switch(*s & PHY_STAT_SPMASK) { - case PHY_STAT_100FDX: printk(", 100 Mbps Full Duplex"); break; - case PHY_STAT_100HDX: printk(", 100 Mbps Half Duplex"); break; - case PHY_STAT_10FDX: printk(", 10 Mbps Full Duplex"); break; - case PHY_STAT_10HDX: printk(", 10 Mbps Half Duplex"); break; - default: - printk(", Unknown speed/duplex"); - } - - if (*s & PHY_STAT_ANC) - printk(", auto-negotiation complete"); - } - - if (*s & PHY_STAT_FAULT) - printk(", remote fault"); - - printk(".\n"); -} - -static void mii_display_config(struct work_struct *work) -{ - struct fec_enet_private *fep = - container_of(work, struct fec_enet_private, phy_task); - struct net_device *dev = fep->dev; - volatile uint *s = &(fep->phy_status); - - printk("%s: config: auto-negotiation ", dev->name); - - if (*s & PHY_CONF_ANE) - printk("on"); - else - printk("off"); - - if (*s & PHY_CONF_100FDX) - printk(", 100FDX"); - if (*s & PHY_CONF_100HDX) - printk(", 100HDX"); - if (*s & PHY_CONF_10FDX) - printk(", 10FDX"); - if (*s & PHY_CONF_10HDX) - printk(", 10HDX"); - if (!(*s & PHY_CONF_SPMASK)) - printk(", No speed/duplex selected?"); - - if (*s & PHY_CONF_LOOP) - printk(", loopback enabled"); - - printk(".\n"); - - fep->sequence_done = 1; -} - -static void mii_relink(struct work_struct *work) -{ - struct fec_enet_private *fep = - container_of(work, struct fec_enet_private, phy_task); - struct net_device *dev = fep->dev; - int duplex; - - fep->link = (fep->phy_status & PHY_STAT_LINK) ? 1 : 0; - mii_display_status(dev); - fep->old_link = fep->link; - - if (fep->link) { - duplex = 0; - if (fep->phy_status - & (PHY_STAT_100FDX | PHY_STAT_10FDX)) - duplex = 1; - fec_restart(dev, duplex); - } - else - fec_stop(dev); - -#if 0 - enable_irq(fep->mii_irq); -#endif - -} - -static void mii_queue_relink(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - - fep->dev = dev; - INIT_WORK(&fep->phy_task, mii_relink); - schedule_work(&fep->phy_task); -} - -static void mii_queue_config(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - - fep->dev = dev; - INIT_WORK(&fep->phy_task, mii_display_config); - schedule_work(&fep->phy_task); -} - - - -phy_cmd_t phy_cmd_relink[] = { { mk_mii_read(MII_REG_CR), mii_queue_relink }, - { mk_mii_end, } }; -phy_cmd_t phy_cmd_config[] = { { mk_mii_read(MII_REG_CR), mii_queue_config }, - { mk_mii_end, } }; - - - -/* Read remainder of PHY ID. -*/ -static void -mii_discover_phy3(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep; - int i; - - fep = dev->priv; - fep->phy_id |= (mii_reg & 0xffff); - - for(i = 0; phy_info[i]; i++) - if(phy_info[i]->id == (fep->phy_id >> 4)) - break; - - if(!phy_info[i]) - panic("%s: PHY id 0x%08x is not supported!\n", - dev->name, fep->phy_id); - - fep->phy = phy_info[i]; - fep->phy_id_done = 1; - - printk("%s: Phy @ 0x%x, type %s (0x%08x)\n", - dev->name, fep->phy_addr, fep->phy->name, fep->phy_id); -} - -/* Scan all of the MII PHY addresses looking for someone to respond - * with a valid ID. This usually happens quickly. - */ -static void -mii_discover_phy(uint mii_reg, struct net_device *dev) -{ - struct fec_enet_private *fep; - uint phytype; - - fep = dev->priv; - - if ((phytype = (mii_reg & 0xffff)) != 0xffff) { - - /* Got first part of ID, now get remainder. - */ - fep->phy_id = phytype << 16; - mii_queue(dev, mk_mii_read(MII_REG_PHYIR2), mii_discover_phy3); - } else { - fep->phy_addr++; - if (fep->phy_addr < 32) { - mii_queue(dev, mk_mii_read(MII_REG_PHYIR1), - mii_discover_phy); - } else { - printk("fec: No PHY device found.\n"); - } - } -} -#endif /* CONFIG_USE_MDIO */ - -/* This interrupt occurs when the PHY detects a link change. -*/ -static -#ifdef CONFIG_RPXCLASSIC -void mii_link_interrupt(void *dev_id) -#else -irqreturn_t mii_link_interrupt(int irq, void * dev_id) -#endif -{ -#ifdef CONFIG_USE_MDIO - struct net_device *dev = dev_id; - struct fec_enet_private *fep = dev->priv; - volatile immap_t *immap = (immap_t *)IMAP_ADDR; - volatile fec_t *fecp = &(immap->im_cpm.cp_fec); - unsigned int ecntrl = fecp->fec_ecntrl; - - /* We need the FEC enabled to access the MII - */ - if ((ecntrl & FEC_ECNTRL_ETHER_EN) == 0) { - fecp->fec_ecntrl |= FEC_ECNTRL_ETHER_EN; - } -#endif /* CONFIG_USE_MDIO */ - -#if 0 - disable_irq(fep->mii_irq); /* disable now, enable later */ -#endif - - -#ifdef CONFIG_USE_MDIO - mii_do_cmd(dev, fep->phy->ack_int); - mii_do_cmd(dev, phy_cmd_relink); /* restart and display status */ - - if ((ecntrl & FEC_ECNTRL_ETHER_EN) == 0) { - fecp->fec_ecntrl = ecntrl; /* restore old settings */ - } -#else -printk("%s[%d] %s: unexpected Link interrupt\n", __FILE__, __LINE__, __func__); -#endif /* CONFIG_USE_MDIO */ - -#ifndef CONFIG_RPXCLASSIC - return IRQ_RETVAL(IRQ_HANDLED); -#endif /* CONFIG_RPXCLASSIC */ -} - -static int -fec_enet_open(struct net_device *dev) -{ - struct fec_enet_private *fep = dev->priv; - - /* I should reset the ring buffers here, but I don't yet know - * a simple way to do that. - */ - -#ifdef CONFIG_USE_MDIO - fep->sequence_done = 0; - fep->link = 0; - - if (fep->phy) { - mii_do_cmd(dev, fep->phy->ack_int); - mii_do_cmd(dev, fep->phy->config); - mii_do_cmd(dev, phy_cmd_config); /* display configuration */ - while(!fep->sequence_done) - schedule(); - - mii_do_cmd(dev, fep->phy->startup); - netif_start_queue(dev); - return 0; /* Success */ - } - return -ENODEV; /* No PHY we understand */ -#else - fep->link = 1; - netif_start_queue(dev); - return 0; /* Success */ -#endif /* CONFIG_USE_MDIO */ - -} - -static int -fec_enet_close(struct net_device *dev) -{ - /* Don't know what to do yet. - */ - netif_stop_queue(dev); - fec_stop(dev); - - return 0; -} - -static struct net_device_stats *fec_enet_get_stats(struct net_device *dev) -{ - struct fec_enet_private *fep = (struct fec_enet_private *)dev->priv; - - return &fep->stats; -} - -/* Set or clear the multicast filter for this adaptor. - * Skeleton taken from sunlance driver. - * The CPM Ethernet implementation allows Multicast as well as individual - * MAC address filtering. Some of the drivers check to make sure it is - * a group multicast address, and discard those that are not. I guess I - * will do the same for now, but just remove the test if you want - * individual filtering as well (do the upper net layers want or support - * this kind of feature?). - */ - -static void set_multicast_list(struct net_device *dev) -{ - struct fec_enet_private *fep; - volatile fec_t *ep; - - fep = (struct fec_enet_private *)dev->priv; - ep = &(((immap_t *)IMAP_ADDR)->im_cpm.cp_fec); - - if (dev->flags&IFF_PROMISC) { - - /* Log any net taps. */ - printk("%s: Promiscuous mode enabled.\n", dev->name); - ep->fec_r_cntrl |= FEC_RCNTRL_PROM; - } else { - - ep->fec_r_cntrl &= ~FEC_RCNTRL_PROM; - - if (dev->flags & IFF_ALLMULTI) { - /* Catch all multicast addresses, so set the - * filter to all 1's. - */ - ep->fec_hash_table_high = 0xffffffff; - ep->fec_hash_table_low = 0xffffffff; - } -#if 0 - else { - /* Clear filter and add the addresses in the list. - */ - ep->sen_gaddr1 = 0; - ep->sen_gaddr2 = 0; - ep->sen_gaddr3 = 0; - ep->sen_gaddr4 = 0; - - dmi = dev->mc_list; - - for (i=0; i<dev->mc_count; i++) { - - /* Only support group multicast for now. - */ - if (!(dmi->dmi_addr[0] & 1)) - continue; - - /* The address in dmi_addr is LSB first, - * and taddr is MSB first. We have to - * copy bytes MSB first from dmi_addr. - */ - mcptr = (u_char *)dmi->dmi_addr + 5; - tdptr = (u_char *)&ep->sen_taddrh; - for (j=0; j<6; j++) - *tdptr++ = *mcptr--; - - /* Ask CPM to run CRC and set bit in - * filter mask. - */ - cpmp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SCC1, CPM_CR_SET_GADDR) | CPM_CR_FLG; - /* this delay is necessary here -- Cort */ - udelay(10); - while (cpmp->cp_cpcr & CPM_CR_FLG); - } - } -#endif - } -} - -/* Initialize the FEC Ethernet on 860T. - */ -static int __init fec_enet_init(void) -{ - struct net_device *dev; - struct fec_enet_private *fep; - int i, j, k, err; - unsigned char *eap, *iap, *ba; - dma_addr_t mem_addr; - volatile cbd_t *bdp; - cbd_t *cbd_base; - volatile immap_t *immap; - volatile fec_t *fecp; - bd_t *bd; -#ifdef CONFIG_SCC_ENET - unsigned char tmpaddr[6]; -#endif - - immap = (immap_t *)IMAP_ADDR; /* pointer to internal registers */ - - bd = (bd_t *)__res; - - dev = alloc_etherdev(sizeof(*fep)); - if (!dev) - return -ENOMEM; - - fep = dev->priv; - - fecp = &(immap->im_cpm.cp_fec); - - /* Whack a reset. We should wait for this. - */ - fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET; - for (i = 0; - (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY); - ++i) { - udelay(1); - } - if (i == FEC_RESET_DELAY) { - printk ("FEC Reset timeout!\n"); - } - - /* Set the Ethernet address. If using multiple Enets on the 8xx, - * this needs some work to get unique addresses. - */ - eap = (unsigned char *)my_enet_addr; - iap = bd->bi_enetaddr; - -#ifdef CONFIG_SCC_ENET - /* - * If a board has Ethernet configured both on a SCC and the - * FEC, it needs (at least) 2 MAC addresses (we know that Sun - * disagrees, but anyway). For the FEC port, we create - * another address by setting one of the address bits above - * something that would have (up to now) been allocated. - */ - for (i=0; i<6; i++) - tmpaddr[i] = *iap++; - tmpaddr[3] |= 0x80; - iap = tmpaddr; -#endif - - for (i=0; i<6; i++) { - dev->dev_addr[i] = *eap++ = *iap++; - } - - /* Allocate memory for buffer descriptors. - */ - if (((RX_RING_SIZE + TX_RING_SIZE) * sizeof(cbd_t)) > PAGE_SIZE) { - printk("FEC init error. Need more space.\n"); - printk("FEC initialization failed.\n"); - return 1; - } - cbd_base = (cbd_t *)dma_alloc_coherent(dev->class_dev.dev, PAGE_SIZE, - &mem_addr, GFP_KERNEL); - - /* Set receive and transmit descriptor base. - */ - fep->rx_bd_base = cbd_base; - fep->tx_bd_base = cbd_base + RX_RING_SIZE; - - fep->skb_cur = fep->skb_dirty = 0; - - /* Initialize the receive buffer descriptors. - */ - bdp = fep->rx_bd_base; - k = 0; - for (i=0; i<FEC_ENET_RX_PAGES; i++) { - - /* Allocate a page. - */ - ba = (unsigned char *)dma_alloc_coherent(dev->class_dev.dev, - PAGE_SIZE, - &mem_addr, - GFP_KERNEL); - /* BUG: no check for failure */ - - /* Initialize the BD for every fragment in the page. - */ - for (j=0; j<FEC_ENET_RX_FRPPG; j++) { - bdp->cbd_sc = BD_ENET_RX_EMPTY; - bdp->cbd_bufaddr = mem_addr; - fep->rx_vaddr[k++] = ba; - mem_addr += FEC_ENET_RX_FRSIZE; - ba += FEC_ENET_RX_FRSIZE; - bdp++; - } - } - - /* Set the last buffer to wrap. - */ - bdp--; - bdp->cbd_sc |= BD_SC_WRAP; - -#ifdef CONFIG_FEC_PACKETHOOK - fep->ph_lock = 0; - fep->ph_rxhandler = fep->ph_txhandler = NULL; - fep->ph_proto = 0; - fep->ph_regaddr = NULL; - fep->ph_priv = NULL; -#endif - - /* Install our interrupt handler. - */ - if (request_irq(FEC_INTERRUPT, fec_enet_interrupt, 0, "fec", dev) != 0) - panic("Could not allocate FEC IRQ!"); - -#ifdef CONFIG_RPXCLASSIC - /* Make Port C, bit 15 an input that causes interrupts. - */ - immap->im_ioport.iop_pcpar &= ~0x0001; - immap->im_ioport.iop_pcdir &= ~0x0001; - immap->im_ioport.iop_pcso &= ~0x0001; - immap->im_ioport.iop_pcint |= 0x0001; - cpm_install_handler(CPMVEC_PIO_PC15, mii_link_interrupt, dev); - - /* Make LEDS reflect Link status. - */ - *((uint *) RPX_CSR_ADDR) &= ~BCSR2_FETHLEDMODE; -#endif - -#ifdef PHY_INTERRUPT - ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel |= - (0x80000000 >> PHY_INTERRUPT); - - if (request_irq(PHY_INTERRUPT, mii_link_interrupt, 0, "mii", dev) != 0) - panic("Could not allocate MII IRQ!"); -#endif - - dev->base_addr = (unsigned long)fecp; - - /* The FEC Ethernet specific entries in the device structure. */ - dev->open = fec_enet_open; - dev->hard_start_xmit = fec_enet_start_xmit; - dev->tx_timeout = fec_timeout; - dev->watchdog_timeo = TX_TIMEOUT; - dev->stop = fec_enet_close; - dev->get_stats = fec_enet_get_stats; - dev->set_multicast_list = set_multicast_list; - -#ifdef CONFIG_USE_MDIO - for (i=0; i<NMII-1; i++) - mii_cmds[i].mii_next = &mii_cmds[i+1]; - mii_free = mii_cmds; -#endif /* CONFIG_USE_MDIO */ - - /* Configure all of port D for MII. - */ - immap->im_ioport.iop_pdpar = 0x1fff; - - /* Bits moved from Rev. D onward. - */ - if ((mfspr(SPRN_IMMR) & 0xffff) < 0x0501) - immap->im_ioport.iop_pddir = 0x1c58; /* Pre rev. D */ - else - immap->im_ioport.iop_pddir = 0x1fff; /* Rev. D and later */ - -#ifdef CONFIG_USE_MDIO - /* Set MII speed to 2.5 MHz - */ - fecp->fec_mii_speed = fep->phy_speed = - (( (bd->bi_intfreq + 500000) / 2500000 / 2 ) & 0x3F ) << 1; -#else - fecp->fec_mii_speed = 0; /* turn off MDIO */ -#endif /* CONFIG_USE_MDIO */ - - err = register_netdev(dev); - if (err) { - free_netdev(dev); - return err; - } - - printk ("%s: FEC ENET Version 0.2, FEC irq %d" -#ifdef PHY_INTERRUPT - ", MII irq %d" -#endif - ", addr ", - dev->name, FEC_INTERRUPT -#ifdef PHY_INTERRUPT - , PHY_INTERRUPT -#endif - ); - for (i=0; i<6; i++) - printk("%02x%c", dev->dev_addr[i], (i==5) ? '\n' : ':'); - -#ifdef CONFIG_USE_MDIO /* start in full duplex mode, and negotiate speed */ - fec_restart (dev, 1); -#else /* always use half duplex mode only */ - fec_restart (dev, 0); -#endif - -#ifdef CONFIG_USE_MDIO - /* Queue up command to detect the PHY and initialize the - * remainder of the interface. - */ - fep->phy_id_done = 0; - fep->phy_addr = 0; - mii_queue(dev, mk_mii_read(MII_REG_PHYIR1), mii_discover_phy); -#endif /* CONFIG_USE_MDIO */ - - return 0; -} -module_init(fec_enet_init); - -/* This function is called to start or restart the FEC during a link - * change. This only happens when switching between half and full - * duplex. - */ -static void -fec_restart(struct net_device *dev, int duplex) -{ - struct fec_enet_private *fep; - int i; - volatile cbd_t *bdp; - volatile immap_t *immap; - volatile fec_t *fecp; - - immap = (immap_t *)IMAP_ADDR; /* pointer to internal registers */ - - fecp = &(immap->im_cpm.cp_fec); - - fep = dev->priv; - - /* Whack a reset. We should wait for this. - */ - fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET; - for (i = 0; - (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY); - ++i) { - udelay(1); - } - if (i == FEC_RESET_DELAY) { - printk ("FEC Reset timeout!\n"); - } - - /* Set station address. - */ - fecp->fec_addr_low = (my_enet_addr[0] << 16) | my_enet_addr[1]; - fecp->fec_addr_high = my_enet_addr[2]; - - /* Reset all multicast. - */ - fecp->fec_hash_table_high = 0; - fecp->fec_hash_table_low = 0; - - /* Set maximum receive buffer size. - */ - fecp->fec_r_buff_size = PKT_MAXBLR_SIZE; - fecp->fec_r_hash = PKT_MAXBUF_SIZE; - - /* Set receive and transmit descriptor base. - */ - fecp->fec_r_des_start = iopa((uint)(fep->rx_bd_base)); - fecp->fec_x_des_start = iopa((uint)(fep->tx_bd_base)); - - fep->dirty_tx = fep->cur_tx = fep->tx_bd_base; - fep->cur_rx = fep->rx_bd_base; - - /* Reset SKB transmit buffers. - */ - fep->skb_cur = fep->skb_dirty = 0; - for (i=0; i<=TX_RING_MOD_MASK; i++) { - if (fep->tx_skbuff[i] != NULL) { - dev_kfree_skb(fep->tx_skbuff[i]); - fep->tx_skbuff[i] = NULL; - } - } - - /* Initialize the receive buffer descriptors. - */ - bdp = fep->rx_bd_base; - for (i=0; i<RX_RING_SIZE; i++) { - - /* Initialize the BD for every fragment in the page. - */ - bdp->cbd_sc = BD_ENET_RX_EMPTY; - bdp++; - } - - /* Set the last buffer to wrap. - */ - bdp--; - bdp->cbd_sc |= BD_SC_WRAP; - - /* ...and the same for transmit. - */ - bdp = fep->tx_bd_base; - for (i=0; i<TX_RING_SIZE; i++) { - - /* Initialize the BD for every fragment in the page. - */ - bdp->cbd_sc = 0; - bdp->cbd_bufaddr = 0; - bdp++; - } - - /* Set the last buffer to wrap. - */ - bdp--; - bdp->cbd_sc |= BD_SC_WRAP; - - /* Enable MII mode. - */ - if (duplex) { - fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE; /* MII enable */ - fecp->fec_x_cntrl = FEC_TCNTRL_FDEN; /* FD enable */ - } - else { - fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT; - fecp->fec_x_cntrl = 0; - } - fep->full_duplex = duplex; - - /* Enable big endian and don't care about SDMA FC. - */ - fecp->fec_fun_code = 0x78000000; - -#ifdef CONFIG_USE_MDIO - /* Set MII speed. - */ - fecp->fec_mii_speed = fep->phy_speed; -#endif /* CONFIG_USE_MDIO */ - - /* Clear any outstanding interrupt. - */ - fecp->fec_ievent = 0xffc0; - - fecp->fec_ivec = (FEC_INTERRUPT/2) << 29; - - /* Enable interrupts we wish to service. - */ - fecp->fec_imask = ( FEC_ENET_TXF | FEC_ENET_TXB | - FEC_ENET_RXF | FEC_ENET_RXB | FEC_ENET_MII ); - - /* And last, enable the transmit and receive processing. - */ - fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN; - fecp->fec_r_des_active = 0x01000000; -} - -static void -fec_stop(struct net_device *dev) -{ - volatile immap_t *immap; - volatile fec_t *fecp; - struct fec_enet_private *fep; - int i; - - immap = (immap_t *)IMAP_ADDR; /* pointer to internal registers */ - - fecp = &(immap->im_cpm.cp_fec); - - if ((fecp->fec_ecntrl & FEC_ECNTRL_ETHER_EN) == 0) - return; /* already down */ - - fep = dev->priv; - - - fecp->fec_x_cntrl = 0x01; /* Graceful transmit stop */ - - for (i = 0; - ((fecp->fec_ievent & 0x10000000) == 0) && (i < FEC_RESET_DELAY); - ++i) { - udelay(1); - } - if (i == FEC_RESET_DELAY) { - printk ("FEC timeout on graceful transmit stop\n"); - } - - /* Clear outstanding MII command interrupts. - */ - fecp->fec_ievent = FEC_ENET_MII; - - /* Enable MII command finished interrupt - */ - fecp->fec_ivec = (FEC_INTERRUPT/2) << 29; - fecp->fec_imask = FEC_ENET_MII; - -#ifdef CONFIG_USE_MDIO - /* Set MII speed. - */ - fecp->fec_mii_speed = fep->phy_speed; -#endif /* CONFIG_USE_MDIO */ - - /* Disable FEC - */ - fecp->fec_ecntrl &= ~(FEC_ECNTRL_ETHER_EN); -} diff --git a/arch/ppc/8xx_io/micropatch.c b/arch/ppc/8xx_io/micropatch.c deleted file mode 100644 index 9a5d95da7c2..00000000000 --- a/arch/ppc/8xx_io/micropatch.c +++ /dev/null @@ -1,743 +0,0 @@ - -/* Microcode patches for the CPM as supplied by Motorola. - * This is the one for IIC/SPI. There is a newer one that - * also relocates SMC2, but this would require additional changes - * to uart.c, so I am holding off on that for a moment. - */ -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <asm/irq.h> -#include <asm/mpc8xx.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/8xx_immap.h> -#include <asm/cpm1.h> - -/* - * I2C/SPI relocation patch arrays. - */ - -#ifdef CONFIG_I2C_SPI_UCODE_PATCH - -uint patch_2000[] = { - 0x7FFFEFD9, - 0x3FFD0000, - 0x7FFB49F7, - 0x7FF90000, - 0x5FEFADF7, - 0x5F89ADF7, - 0x5FEFAFF7, - 0x5F89AFF7, - 0x3A9CFBC8, - 0xE7C0EDF0, - 0x77C1E1BB, - 0xF4DC7F1D, - 0xABAD932F, - 0x4E08FDCF, - 0x6E0FAFF8, - 0x7CCF76CF, - 0xFD1FF9CF, - 0xABF88DC6, - 0xAB5679F7, - 0xB0937383, - 0xDFCE79F7, - 0xB091E6BB, - 0xE5BBE74F, - 0xB3FA6F0F, - 0x6FFB76CE, - 0xEE0DF9CF, - 0x2BFBEFEF, - 0xCFEEF9CF, - 0x76CEAD24, - 0x90B2DF9A, - 0x7FDDD0BF, - 0x4BF847FD, - 0x7CCF76CE, - 0xCFEF7E1F, - 0x7F1D7DFD, - 0xF0B6EF71, - 0x7FC177C1, - 0xFBC86079, - 0xE722FBC8, - 0x5FFFDFFF, - 0x5FB2FFFB, - 0xFBC8F3C8, - 0x94A67F01, - 0x7F1D5F39, - 0xAFE85F5E, - 0xFFDFDF96, - 0xCB9FAF7D, - 0x5FC1AFED, - 0x8C1C5FC1, - 0xAFDD5FC3, - 0xDF9A7EFD, - 0xB0B25FB2, - 0xFFFEABAD, - 0x5FB2FFFE, - 0x5FCE600B, - 0xE6BB600B, - 0x5FCEDFC6, - 0x27FBEFDF, - 0x5FC8CFDE, - 0x3A9CE7C0, - 0xEDF0F3C8, - 0x7F0154CD, - 0x7F1D2D3D, - 0x363A7570, - 0x7E0AF1CE, - 0x37EF2E68, - 0x7FEE10EC, - 0xADF8EFDE, - 0xCFEAE52F, - 0x7D0FE12B, - 0xF1CE5F65, - 0x7E0A4DF8, - 0xCFEA5F72, - 0x7D0BEFEE, - 0xCFEA5F74, - 0xE522EFDE, - 0x5F74CFDA, - 0x0B627385, - 0xDF627E0A, - 0x30D8145B, - 0xBFFFF3C8, - 0x5FFFDFFF, - 0xA7F85F5E, - 0xBFFE7F7D, - 0x10D31450, - 0x5F36BFFF, - 0xAF785F5E, - 0xBFFDA7F8, - 0x5F36BFFE, - 0x77FD30C0, - 0x4E08FDCF, - 0xE5FF6E0F, - 0xAFF87E1F, - 0x7E0FFD1F, - 0xF1CF5F1B, - 0xABF80D5E, - 0x5F5EFFEF, - 0x79F730A2, - 0xAFDD5F34, - 0x47F85F34, - 0xAFED7FDD, - 0x50B24978, - 0x47FD7F1D, - 0x7DFD70AD, - 0xEF717EC1, - 0x6BA47F01, - 0x2D267EFD, - 0x30DE5F5E, - 0xFFFD5F5E, - 0xFFEF5F5E, - 0xFFDF0CA0, - 0xAFED0A9E, - 0xAFDD0C3A, - 0x5F3AAFBD, - 0x7FBDB082, - 0x5F8247F8 -}; - -uint patch_2f00[] = { - 0x3E303430, - 0x34343737, - 0xABF7BF9B, - 0x994B4FBD, - 0xBD599493, - 0x349FFF37, - 0xFB9B177D, - 0xD9936956, - 0xBBFDD697, - 0xBDD2FD11, - 0x31DB9BB3, - 0x63139637, - 0x93733693, - 0x193137F7, - 0x331737AF, - 0x7BB9B999, - 0xBB197957, - 0x7FDFD3D5, - 0x73B773F7, - 0x37933B99, - 0x1D115316, - 0x99315315, - 0x31694BF4, - 0xFBDBD359, - 0x31497353, - 0x76956D69, - 0x7B9D9693, - 0x13131979, - 0x79376935 -}; -#endif - -/* - * I2C/SPI/SMC1 relocation patch arrays. - */ - -#ifdef CONFIG_I2C_SPI_SMC1_UCODE_PATCH - -uint patch_2000[] = { - 0x3fff0000, - 0x3ffd0000, - 0x3ffb0000, - 0x3ff90000, - 0x5f13eff8, - 0x5eb5eff8, - 0x5f88adf7, - 0x5fefadf7, - 0x3a9cfbc8, - 0x77cae1bb, - 0xf4de7fad, - 0xabae9330, - 0x4e08fdcf, - 0x6e0faff8, - 0x7ccf76cf, - 0xfdaff9cf, - 0xabf88dc8, - 0xab5879f7, - 0xb0925d8d, - 0xdfd079f7, - 0xb090e6bb, - 0xe5bbe74f, - 0x9e046f0f, - 0x6ffb76ce, - 0xee0cf9cf, - 0x2bfbefef, - 0xcfeef9cf, - 0x76cead23, - 0x90b3df99, - 0x7fddd0c1, - 0x4bf847fd, - 0x7ccf76ce, - 0xcfef77ca, - 0x7eaf7fad, - 0x7dfdf0b7, - 0xef7a7fca, - 0x77cafbc8, - 0x6079e722, - 0xfbc85fff, - 0xdfff5fb3, - 0xfffbfbc8, - 0xf3c894a5, - 0xe7c9edf9, - 0x7f9a7fad, - 0x5f36afe8, - 0x5f5bffdf, - 0xdf95cb9e, - 0xaf7d5fc3, - 0xafed8c1b, - 0x5fc3afdd, - 0x5fc5df99, - 0x7efdb0b3, - 0x5fb3fffe, - 0xabae5fb3, - 0xfffe5fd0, - 0x600be6bb, - 0x600b5fd0, - 0xdfc827fb, - 0xefdf5fca, - 0xcfde3a9c, - 0xe7c9edf9, - 0xf3c87f9e, - 0x54ca7fed, - 0x2d3a3637, - 0x756f7e9a, - 0xf1ce37ef, - 0x2e677fee, - 0x10ebadf8, - 0xefdecfea, - 0xe52f7d9f, - 0xe12bf1ce, - 0x5f647e9a, - 0x4df8cfea, - 0x5f717d9b, - 0xefeecfea, - 0x5f73e522, - 0xefde5f73, - 0xcfda0b61, - 0x5d8fdf61, - 0xe7c9edf9, - 0x7e9a30d5, - 0x1458bfff, - 0xf3c85fff, - 0xdfffa7f8, - 0x5f5bbffe, - 0x7f7d10d0, - 0x144d5f33, - 0xbfffaf78, - 0x5f5bbffd, - 0xa7f85f33, - 0xbffe77fd, - 0x30bd4e08, - 0xfdcfe5ff, - 0x6e0faff8, - 0x7eef7e9f, - 0xfdeff1cf, - 0x5f17abf8, - 0x0d5b5f5b, - 0xffef79f7, - 0x309eafdd, - 0x5f3147f8, - 0x5f31afed, - 0x7fdd50af, - 0x497847fd, - 0x7f9e7fed, - 0x7dfd70a9, - 0xef7e7ece, - 0x6ba07f9e, - 0x2d227efd, - 0x30db5f5b, - 0xfffd5f5b, - 0xffef5f5b, - 0xffdf0c9c, - 0xafed0a9a, - 0xafdd0c37, - 0x5f37afbd, - 0x7fbdb081, - 0x5f8147f8, - 0x3a11e710, - 0xedf0ccdd, - 0xf3186d0a, - 0x7f0e5f06, - 0x7fedbb38, - 0x3afe7468, - 0x7fedf4fc, - 0x8ffbb951, - 0xb85f77fd, - 0xb0df5ddd, - 0xdefe7fed, - 0x90e1e74d, - 0x6f0dcbf7, - 0xe7decfed, - 0xcb74cfed, - 0xcfeddf6d, - 0x91714f74, - 0x5dd2deef, - 0x9e04e7df, - 0xefbb6ffb, - 0xe7ef7f0e, - 0x9e097fed, - 0xebdbeffa, - 0xeb54affb, - 0x7fea90d7, - 0x7e0cf0c3, - 0xbffff318, - 0x5fffdfff, - 0xac59efea, - 0x7fce1ee5, - 0xe2ff5ee1, - 0xaffbe2ff, - 0x5ee3affb, - 0xf9cc7d0f, - 0xaef8770f, - 0x7d0fb0c6, - 0xeffbbfff, - 0xcfef5ede, - 0x7d0fbfff, - 0x5ede4cf8, - 0x7fddd0bf, - 0x49f847fd, - 0x7efdf0bb, - 0x7fedfffd, - 0x7dfdf0b7, - 0xef7e7e1e, - 0x5ede7f0e, - 0x3a11e710, - 0xedf0ccab, - 0xfb18ad2e, - 0x1ea9bbb8, - 0x74283b7e, - 0x73c2e4bb, - 0x2ada4fb8, - 0xdc21e4bb, - 0xb2a1ffbf, - 0x5e2c43f8, - 0xfc87e1bb, - 0xe74ffd91, - 0x6f0f4fe8, - 0xc7ba32e2, - 0xf396efeb, - 0x600b4f78, - 0xe5bb760b, - 0x53acaef8, - 0x4ef88b0e, - 0xcfef9e09, - 0xabf8751f, - 0xefef5bac, - 0x741f4fe8, - 0x751e760d, - 0x7fdbf081, - 0x741cafce, - 0xefcc7fce, - 0x751e70ac, - 0x741ce7bb, - 0x3372cfed, - 0xafdbefeb, - 0xe5bb760b, - 0x53f2aef8, - 0xafe8e7eb, - 0x4bf8771e, - 0x7e247fed, - 0x4fcbe2cc, - 0x7fbc30a9, - 0x7b0f7a0f, - 0x34d577fd, - 0x308b5db7, - 0xde553e5f, - 0xaf78741f, - 0x741f30f0, - 0xcfef5e2c, - 0x741f3eac, - 0xafb8771e, - 0x5e677fed, - 0x0bd3e2cc, - 0x741ccfec, - 0xe5ca53cd, - 0x6fcb4f74, - 0x5dadde4b, - 0x2ab63d38, - 0x4bb3de30, - 0x751f741c, - 0x6c42effa, - 0xefea7fce, - 0x6ffc30be, - 0xefec3fca, - 0x30b3de2e, - 0xadf85d9e, - 0xaf7daefd, - 0x5d9ede2e, - 0x5d9eafdd, - 0x761f10ac, - 0x1da07efd, - 0x30adfffe, - 0x4908fb18, - 0x5fffdfff, - 0xafbb709b, - 0x4ef85e67, - 0xadf814ad, - 0x7a0f70ad, - 0xcfef50ad, - 0x7a0fde30, - 0x5da0afed, - 0x3c12780f, - 0xefef780f, - 0xefef790f, - 0xa7f85e0f, - 0xffef790f, - 0xefef790f, - 0x14adde2e, - 0x5d9eadfd, - 0x5e2dfffb, - 0xe79addfd, - 0xeff96079, - 0x607ae79a, - 0xddfceff9, - 0x60795dff, - 0x607acfef, - 0xefefefdf, - 0xefbfef7f, - 0xeeffedff, - 0xebffe7ff, - 0xafefafdf, - 0xafbfaf7f, - 0xaeffadff, - 0xabffa7ff, - 0x6fef6fdf, - 0x6fbf6f7f, - 0x6eff6dff, - 0x6bff67ff, - 0x2fef2fdf, - 0x2fbf2f7f, - 0x2eff2dff, - 0x2bff27ff, - 0x4e08fd1f, - 0xe5ff6e0f, - 0xaff87eef, - 0x7e0ffdef, - 0xf11f6079, - 0xabf8f542, - 0x7e0af11c, - 0x37cfae3a, - 0x7fec90be, - 0xadf8efdc, - 0xcfeae52f, - 0x7d0fe12b, - 0xf11c6079, - 0x7e0a4df8, - 0xcfea5dc4, - 0x7d0befec, - 0xcfea5dc6, - 0xe522efdc, - 0x5dc6cfda, - 0x4e08fd1f, - 0x6e0faff8, - 0x7c1f761f, - 0xfdeff91f, - 0x6079abf8, - 0x761cee24, - 0xf91f2bfb, - 0xefefcfec, - 0xf91f6079, - 0x761c27fb, - 0xefdf5da7, - 0xcfdc7fdd, - 0xd09c4bf8, - 0x47fd7c1f, - 0x761ccfcf, - 0x7eef7fed, - 0x7dfdf093, - 0xef7e7f1e, - 0x771efb18, - 0x6079e722, - 0xe6bbe5bb, - 0xae0ae5bb, - 0x600bae85, - 0xe2bbe2bb, - 0xe2bbe2bb, - 0xaf02e2bb, - 0xe2bb2ff9, - 0x6079e2bb -}; - -uint patch_2f00[] = { - 0x30303030, - 0x3e3e3434, - 0xabbf9b99, - 0x4b4fbdbd, - 0x59949334, - 0x9fff37fb, - 0x9b177dd9, - 0x936956bb, - 0xfbdd697b, - 0xdd2fd113, - 0x1db9f7bb, - 0x36313963, - 0x79373369, - 0x3193137f, - 0x7331737a, - 0xf7bb9b99, - 0x9bb19795, - 0x77fdfd3d, - 0x573b773f, - 0x737933f7, - 0xb991d115, - 0x31699315, - 0x31531694, - 0xbf4fbdbd, - 0x35931497, - 0x35376956, - 0xbd697b9d, - 0x96931313, - 0x19797937, - 0x6935af78, - 0xb9b3baa3, - 0xb8788683, - 0x368f78f7, - 0x87778733, - 0x3ffffb3b, - 0x8e8f78b8, - 0x1d118e13, - 0xf3ff3f8b, - 0x6bd8e173, - 0xd1366856, - 0x68d1687b, - 0x3daf78b8, - 0x3a3a3f87, - 0x8f81378f, - 0xf876f887, - 0x77fd8778, - 0x737de8d6, - 0xbbf8bfff, - 0xd8df87f7, - 0xfd876f7b, - 0x8bfff8bd, - 0x8683387d, - 0xb873d87b, - 0x3b8fd7f8, - 0xf7338883, - 0xbb8ee1f8, - 0xef837377, - 0x3337b836, - 0x817d11f8, - 0x7378b878, - 0xd3368b7d, - 0xed731b7d, - 0x833731f3, - 0xf22f3f23 -}; - -uint patch_2e00[] = { - 0x27eeeeee, - 0xeeeeeeee, - 0xeeeeeeee, - 0xeeeeeeee, - 0xee4bf4fb, - 0xdbd259bb, - 0x1979577f, - 0xdfd2d573, - 0xb773f737, - 0x4b4fbdbd, - 0x25b9b177, - 0xd2d17376, - 0x956bbfdd, - 0x697bdd2f, - 0xff9f79ff, - 0xff9ff22f -}; -#endif - -/* - * USB SOF patch arrays. - */ - -#ifdef CONFIG_USB_SOF_UCODE_PATCH - -uint patch_2000[] = { - 0x7fff0000, - 0x7ffd0000, - 0x7ffb0000, - 0x49f7ba5b, - 0xba383ffb, - 0xf9b8b46d, - 0xe5ab4e07, - 0xaf77bffe, - 0x3f7bbf79, - 0xba5bba38, - 0xe7676076, - 0x60750000 -}; - -uint patch_2f00[] = { - 0x3030304c, - 0xcab9e441, - 0xa1aaf220 -}; -#endif - -void -cpm_load_patch(volatile immap_t *immr) -{ - volatile uint *dp; /* Dual-ported RAM. */ - volatile cpm8xx_t *commproc; - volatile iic_t *iip; - volatile spi_t *spp; - volatile smc_uart_t *smp; - int i; - - commproc = (cpm8xx_t *)&immr->im_cpm; - -#ifdef CONFIG_USB_SOF_UCODE_PATCH - commproc->cp_rccr = 0; - - dp = (uint *)(commproc->cp_dpmem); - for (i=0; i<(sizeof(patch_2000)/4); i++) - *dp++ = patch_2000[i]; - - dp = (uint *)&(commproc->cp_dpmem[0x0f00]); - for (i=0; i<(sizeof(patch_2f00)/4); i++) - *dp++ = patch_2f00[i]; - - commproc->cp_rccr = 0x0009; - - printk("USB SOF microcode patch installed\n"); -#endif /* CONFIG_USB_SOF_UCODE_PATCH */ - -#if defined(CONFIG_I2C_SPI_UCODE_PATCH) || \ - defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH) - - commproc->cp_rccr = 0; - - dp = (uint *)(commproc->cp_dpmem); - for (i=0; i<(sizeof(patch_2000)/4); i++) - *dp++ = patch_2000[i]; - - dp = (uint *)&(commproc->cp_dpmem[0x0f00]); - for (i=0; i<(sizeof(patch_2f00)/4); i++) - *dp++ = patch_2f00[i]; - - iip = (iic_t *)&commproc->cp_dparam[PROFF_IIC]; -# define RPBASE 0x0500 - iip->iic_rpbase = RPBASE; - - /* Put SPI above the IIC, also 32-byte aligned. - */ - i = (RPBASE + sizeof(iic_t) + 31) & ~31; - spp = (spi_t *)&commproc->cp_dparam[PROFF_SPI]; - spp->spi_rpbase = i; - -# if defined(CONFIG_I2C_SPI_UCODE_PATCH) - commproc->cp_cpmcr1 = 0x802a; - commproc->cp_cpmcr2 = 0x8028; - commproc->cp_cpmcr3 = 0x802e; - commproc->cp_cpmcr4 = 0x802c; - commproc->cp_rccr = 1; - - printk("I2C/SPI microcode patch installed.\n"); -# endif /* CONFIG_I2C_SPI_UCODE_PATCH */ - -# if defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH) - - dp = (uint *)&(commproc->cp_dpmem[0x0e00]); - for (i=0; i<(sizeof(patch_2e00)/4); i++) - *dp++ = patch_2e00[i]; - - commproc->cp_cpmcr1 = 0x8080; - commproc->cp_cpmcr2 = 0x808a; - commproc->cp_cpmcr3 = 0x8028; - commproc->cp_cpmcr4 = 0x802a; - commproc->cp_rccr = 3; - - smp = (smc_uart_t *)&commproc->cp_dparam[PROFF_SMC1]; - smp->smc_rpbase = 0x1FC0; - - printk("I2C/SPI/SMC1 microcode patch installed.\n"); -# endif /* CONFIG_I2C_SPI_SMC1_UCODE_PATCH) */ - -#endif /* some variation of the I2C/SPI patch was selected */ -} - -/* - * Take this entire routine out, since no one calls it and its - * logic is suspect. - */ - -#if 0 -void -verify_patch(volatile immap_t *immr) -{ - volatile uint *dp; - volatile cpm8xx_t *commproc; - int i; - - commproc = (cpm8xx_t *)&immr->im_cpm; - - printk("cp_rccr %x\n", commproc->cp_rccr); - commproc->cp_rccr = 0; - - dp = (uint *)(commproc->cp_dpmem); - for (i=0; i<(sizeof(patch_2000)/4); i++) - if (*dp++ != patch_2000[i]) { - printk("patch_2000 bad at %d\n", i); - dp--; - printk("found 0x%X, wanted 0x%X\n", *dp, patch_2000[i]); - break; - } - - dp = (uint *)&(commproc->cp_dpmem[0x0f00]); - for (i=0; i<(sizeof(patch_2f00)/4); i++) - if (*dp++ != patch_2f00[i]) { - printk("patch_2f00 bad at %d\n", i); - dp--; - printk("found 0x%X, wanted 0x%X\n", *dp, patch_2f00[i]); - break; - } - - commproc->cp_rccr = 0x0009; -} -#endif |