diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/taishan.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/taishan.c | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/arch/ppc/platforms/4xx/taishan.c b/arch/ppc/platforms/4xx/taishan.c deleted file mode 100644 index 11569427508..00000000000 --- a/arch/ppc/platforms/4xx/taishan.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - * arch/ppc/platforms/4xx/taishan.c - * - * AMCC Taishan board specific routines - * - * Copyright 2007 DENX Software Engineering, Stefan Roese <sr@denx.de> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/major.h> -#include <linux/blkdev.h> -#include <linux/console.h> -#include <linux/delay.h> -#include <linux/initrd.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/tty.h> -#include <linux/serial.h> -#include <linux/serial_core.h> -#include <linux/serial_8250.h> -#include <linux/platform_device.h> -#include <linux/mtd/partitions.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/ndfc.h> -#include <linux/mtd/physmap.h> - -#include <asm/machdep.h> -#include <asm/ocp.h> -#include <asm/bootinfo.h> -#include <asm/ppcboot.h> - -#include <syslib/gen550.h> -#include <syslib/ibm440gx_common.h> - -extern bd_t __res; - -static struct ibm44x_clocks clocks __initdata; - -/* - * NOR FLASH configuration (using mtd physmap driver) - */ - -/* start will be added dynamically, end is always fixed */ -static struct resource taishan_nor_resource = { - .start = TAISHAN_FLASH_ADDR, - .end = 0x1ffffffffULL, - .flags = IORESOURCE_MEM, -}; - -#define RW_PART0_OF 0 -#define RW_PART0_SZ 0x180000 -#define RW_PART1_SZ 0x200000 -/* Partition 2 will be autosized dynamically... */ -#define RW_PART3_SZ 0x80000 -#define RW_PART4_SZ 0x40000 - -static struct mtd_partition taishan_nor_parts[] = { - { - .name = "kernel", - .offset = 0, - .size = RW_PART0_SZ - }, - { - .name = "root", - .offset = MTDPART_OFS_APPEND, - .size = RW_PART1_SZ, - }, - { - .name = "user", - .offset = MTDPART_OFS_APPEND, -/* .size = RW_PART2_SZ */ /* will be adjusted dynamically */ - }, - { - .name = "env", - .offset = MTDPART_OFS_APPEND, - .size = RW_PART3_SZ, - }, - { - .name = "u-boot", - .offset = MTDPART_OFS_APPEND, - .size = RW_PART4_SZ, - } -}; - -static struct physmap_flash_data taishan_nor_data = { - .width = 4, - .parts = taishan_nor_parts, - .nr_parts = ARRAY_SIZE(taishan_nor_parts), -}; - -static struct platform_device taishan_nor_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &taishan_nor_data, - }, - .num_resources = 1, - .resource = &taishan_nor_resource, -}; - -static int taishan_setup_flash(void) -{ - /* - * Adjust partition 2 to flash size - */ - taishan_nor_parts[2].size = __res.bi_flashsize - - RW_PART0_SZ - RW_PART1_SZ - RW_PART3_SZ - RW_PART4_SZ; - - platform_device_register(&taishan_nor_device); - - return 0; -} -arch_initcall(taishan_setup_flash); - -static void __init -taishan_calibrate_decr(void) -{ - unsigned int freq; - - if (mfspr(SPRN_CCR1) & CCR1_TCS) - freq = TAISHAN_TMR_CLK; - else - freq = clocks.cpu; - - ibm44x_calibrate_decr(freq); -} - -static int -taishan_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: AMCC\n"); - seq_printf(m, "machine\t\t: PPC440GX EVB (Taishan)\n"); - ibm440gx_show_cpuinfo(m); - return 0; -} - -static inline int -taishan_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 23, 24, 25, 26 }, /* IDSEL 1 - PCI Slot 0 */ - { 24, 25, 26, 23 }, /* IDSEL 2 - PCI Slot 1 */ - }; - - const long min_idsel = 1, max_idsel = 2, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} - -static void __init taishan_set_emacdata(void) -{ - struct ocp_def *def; - struct ocp_func_emac_data *emacdata; - int i; - - /* Set phy_map, phy_mode, and mac_addr for each EMAC */ - for (i=2; i<4; i++) { - def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, i); - emacdata = def->additions; - if (i < 2) { - emacdata->phy_map = 0x00000001; /* Skip 0x00 */ - emacdata->phy_mode = PHY_MODE_SMII; - } else { - emacdata->phy_map = 0x00000001; /* Skip 0x00 */ - emacdata->phy_mode = PHY_MODE_RGMII; - } - if (i == 0) - memcpy(emacdata->mac_addr, "\0\0\0\0\0\0", 6); - else if (i == 1) - memcpy(emacdata->mac_addr, "\0\0\0\0\0\0", 6); - else if (i == 2) - memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6); - else if (i == 3) - memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6); - } -} - -#define PCIX_READW(offset) \ - (readw(pcix_reg_base+offset)) - -#define PCIX_WRITEW(value, offset) \ - (writew(value, pcix_reg_base+offset)) - -#define PCIX_WRITEL(value, offset) \ - (writel(value, pcix_reg_base+offset)) - -/* - * FIXME: This is only here to "make it work". This will move - * to a ibm_pcix.c which will contain a generic IBM PCIX bridge - * configuration library. -Matt - */ -static void __init -taishan_setup_pcix(void) -{ - void *pcix_reg_base; - - pcix_reg_base = ioremap64(PCIX0_REG_BASE, PCIX_REG_SIZE); - - /* Enable PCIX0 I/O, Mem, and Busmaster cycles */ - PCIX_WRITEW(PCIX_READW(PCIX0_COMMAND) | PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER, PCIX0_COMMAND); - - /* Disable all windows */ - PCIX_WRITEL(0, PCIX0_POM0SA); - PCIX_WRITEL(0, PCIX0_POM1SA); - PCIX_WRITEL(0, PCIX0_POM2SA); - PCIX_WRITEL(0, PCIX0_PIM0SA); - PCIX_WRITEL(0, PCIX0_PIM0SAH); - PCIX_WRITEL(0, PCIX0_PIM1SA); - PCIX_WRITEL(0, PCIX0_PIM2SA); - PCIX_WRITEL(0, PCIX0_PIM2SAH); - - /* Setup 2GB PLB->PCI outbound mem window (3_8000_0000->0_8000_0000) */ - PCIX_WRITEL(0x00000003, PCIX0_POM0LAH); - PCIX_WRITEL(0x80000000, PCIX0_POM0LAL); - PCIX_WRITEL(0x00000000, PCIX0_POM0PCIAH); - PCIX_WRITEL(0x80000000, PCIX0_POM0PCIAL); - PCIX_WRITEL(0x80000001, PCIX0_POM0SA); - - /* Setup 2GB PCI->PLB inbound memory window at 0, enable MSIs */ - PCIX_WRITEL(0x00000000, PCIX0_PIM0LAH); - PCIX_WRITEL(0x00000000, PCIX0_PIM0LAL); - PCIX_WRITEL(0x80000007, PCIX0_PIM0SA); - PCIX_WRITEL(0xffffffff, PCIX0_PIM0SAH); - - iounmap(pcix_reg_base); - - eieio(); -} - -static void __init -taishan_setup_hose(void) -{ - struct pci_controller *hose; - - /* Configure windows on the PCI-X host bridge */ - taishan_setup_pcix(); - - hose = pcibios_alloc_controller(); - - if (!hose) - return; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - hose->pci_mem_offset = TAISHAN_PCI_MEM_OFFSET; - - pci_init_resource(&hose->io_resource, - TAISHAN_PCI_LOWER_IO, - TAISHAN_PCI_UPPER_IO, - IORESOURCE_IO, - "PCI host bridge"); - - pci_init_resource(&hose->mem_resources[0], - TAISHAN_PCI_LOWER_MEM, - TAISHAN_PCI_UPPER_MEM, - IORESOURCE_MEM, - "PCI host bridge"); - - hose->io_space.start = TAISHAN_PCI_LOWER_IO; - hose->io_space.end = TAISHAN_PCI_UPPER_IO; - hose->mem_space.start = TAISHAN_PCI_LOWER_MEM; - hose->mem_space.end = TAISHAN_PCI_UPPER_MEM; - hose->io_base_virt = ioremap64(TAISHAN_PCI_IO_BASE, TAISHAN_PCI_IO_SIZE); - isa_io_base = (unsigned long) hose->io_base_virt; - - setup_indirect_pci(hose, - TAISHAN_PCI_CFGA_PLB32, - TAISHAN_PCI_CFGD_PLB32); - hose->set_cfg_type = 1; - - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = taishan_map_irq; -} - - -static void __init -taishan_early_serial_map(void) -{ - struct uart_port port; - - /* Setup ioremapped serial port access */ - memset(&port, 0, sizeof(port)); - port.membase = ioremap64(PPC440GX_UART0_ADDR, 8); - port.irq = UART0_INT; - port.uartclk = clocks.uart0; - port.regshift = 0; - port.iotype = UPIO_MEM; - port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; - port.line = 0; - - if (early_serial_setup(&port) != 0) - printk("Early serial init of port 0 failed\n"); - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(0, &port); - - /* Purge TLB entry added in head_44x.S for early serial access */ - _tlbie(UART0_IO_BASE, 0); -#endif - - port.membase = ioremap64(PPC440GX_UART1_ADDR, 8); - port.irq = UART1_INT; - port.uartclk = clocks.uart1; - port.line = 1; - - if (early_serial_setup(&port) != 0) - printk("Early serial init of port 1 failed\n"); - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(1, &port); -#endif -} - -static void __init -taishan_setup_arch(void) -{ - taishan_set_emacdata(); - - ibm440gx_tah_enable(); - - /* - * Determine various clocks. - * To be completely correct we should get SysClk - * from FPGA, because it can be changed by on-board switches - * --ebs - */ - ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200); - ocp_sys_info.opb_bus_freq = clocks.opb; - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000/HZ; - - /* Setup PCI host bridge */ - taishan_setup_hose(); - -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = Root_RAM0; - else -#endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = Root_NFS; -#else - ROOT_DEV = Root_HDA1; -#endif - - taishan_early_serial_map(); - - /* Identify the system */ - printk("AMCC PowerPC 440GX Taishan Platform\n"); -} - -static void __init taishan_init(void) -{ - ibm440gx_l2c_setup(&clocks); -} - -void __init platform_init(unsigned long r3, unsigned long r4, - unsigned long r5, unsigned long r6, unsigned long r7) -{ - ibm44x_platform_init(r3, r4, r5, r6, r7); - - ppc_md.setup_arch = taishan_setup_arch; - ppc_md.show_cpuinfo = taishan_show_cpuinfo; - ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */ - - ppc_md.calibrate_decr = taishan_calibrate_decr; - -#ifdef CONFIG_KGDB - ppc_md.early_serial_map = taishan_early_serial_map; -#endif - ppc_md.init = taishan_init; -} - |