diff options
Diffstat (limited to 'arch/ppc/platforms/lopec.c')
| -rw-r--r-- | arch/ppc/platforms/lopec.c | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/arch/ppc/platforms/lopec.c b/arch/ppc/platforms/lopec.c deleted file mode 100644 index 1e3aa6e9b6c..00000000000 --- a/arch/ppc/platforms/lopec.c +++ /dev/null @@ -1,310 +0,0 @@ -/* - * Setup routines for the Motorola LoPEC. - * - * Author: Dan Cox - * Maintainer: Tom Rini <trini@kernel.crashing.org> - * - * 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ - -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/pci_ids.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/seq_file.h> -#include <linux/initrd.h> -#include <linux/console.h> -#include <linux/root_dev.h> -#include <linux/pci.h> - -#include <asm/machdep.h> -#include <asm/pci-bridge.h> -#include <asm/io.h> -#include <asm/open_pic.h> -#include <asm/i8259.h> -#include <asm/todc.h> -#include <asm/bootinfo.h> -#include <asm/mpc10x.h> -#include <asm/hw_irq.h> -#include <asm/prep_nvram.h> -#include <asm/kgdb.h> - -/* - * Define all of the IRQ senses and polarities. Taken from the - * LoPEC Programmer's Reference Guide. - */ -static u_char lopec_openpic_initsenses[16] __initdata = { - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 3 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 4 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 5 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 6 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 7 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 8 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 9 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 10 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 11 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 12 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 13 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ 14 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE) /* IRQ 15 */ -}; - -static inline int __init -lopec_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - int irq; - static char pci_irq_table[][4] = { - {16, 0, 0, 0}, /* ID 11 - Winbond */ - {22, 0, 0, 0}, /* ID 12 - SCSI */ - {0, 0, 0, 0}, /* ID 13 - nothing */ - {17, 0, 0, 0}, /* ID 14 - 82559 Ethernet */ - {27, 0, 0, 0}, /* ID 15 - USB */ - {23, 0, 0, 0}, /* ID 16 - PMC slot 1 */ - {24, 0, 0, 0}, /* ID 17 - PMC slot 2 */ - {25, 0, 0, 0}, /* ID 18 - PCI slot */ - {0, 0, 0, 0}, /* ID 19 - nothing */ - {0, 0, 0, 0}, /* ID 20 - nothing */ - {0, 0, 0, 0}, /* ID 21 - nothing */ - {0, 0, 0, 0}, /* ID 22 - nothing */ - {0, 0, 0, 0}, /* ID 23 - nothing */ - {0, 0, 0, 0}, /* ID 24 - PMC slot 1b */ - {0, 0, 0, 0}, /* ID 25 - nothing */ - {0, 0, 0, 0} /* ID 26 - PMC Slot 2b */ - }; - const long min_idsel = 11, max_idsel = 26, irqs_per_slot = 4; - - irq = PCI_IRQ_TABLE_LOOKUP; - if (!irq) - return 0; - - return irq; -} - -static void __init -lopec_setup_winbond_83553(struct pci_controller *hose) -{ - int devfn; - - devfn = PCI_DEVFN(11,0); - - /* IDE interrupt routing (primary 14, secondary 15) */ - early_write_config_byte(hose, 0, devfn, 0x43, 0xef); - /* PCI interrupt routing */ - early_write_config_word(hose, 0, devfn, 0x44, 0x0000); - - /* ISA-PCI address decoder */ - early_write_config_byte(hose, 0, devfn, 0x48, 0xf0); - - /* RTC, kb, not used in PPC */ - early_write_config_byte(hose, 0, devfn, 0x4d, 0x00); - early_write_config_byte(hose, 0, devfn, 0x4e, 0x04); - devfn = PCI_DEVFN(11, 1); - early_write_config_byte(hose, 0, devfn, 0x09, 0x8f); - early_write_config_dword(hose, 0, devfn, 0x40, 0x00ff0011); -} - -static void __init -lopec_find_bridges(void) -{ - struct pci_controller *hose; - - hose = pcibios_alloc_controller(); - if (!hose) - return; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - if (mpc10x_bridge_init(hose, MPC10X_MEM_MAP_B, MPC10X_MEM_MAP_B, - MPC10X_MAPB_EUMB_BASE) == 0) { - - hose->mem_resources[0].end = 0xffffffff; - lopec_setup_winbond_83553(hose); - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = lopec_map_irq; - } -} - -static int -lopec_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "machine\t\t: Motorola LoPEC\n"); - return 0; -} - -static void -lopec_restart(char *cmd) -{ -#define LOPEC_SYSSTAT1 0xffe00000 - /* force a hard reset, if possible */ - unsigned char reg = *((unsigned char *) LOPEC_SYSSTAT1); - reg |= 0x80; - *((unsigned char *) LOPEC_SYSSTAT1) = reg; - - local_irq_disable(); - while(1); -#undef LOPEC_SYSSTAT1 -} - -static void -lopec_halt(void) -{ - local_irq_disable(); - while(1); -} - -static void -lopec_power_off(void) -{ - lopec_halt(); -} - -static void __init -lopec_init_IRQ(void) -{ - int i; - - /* - * Provide the open_pic code with the correct table of interrupts. - */ - OpenPIC_InitSenses = lopec_openpic_initsenses; - OpenPIC_NumInitSenses = sizeof(lopec_openpic_initsenses); - - mpc10x_set_openpic(); - - /* We have a cascade on OpenPIC IRQ 0, Linux IRQ 16 */ - openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade", - &i8259_irq); - - /* - * The EPIC allows for a read in the range of 0xFEF00000 -> - * 0xFEFFFFFF to generate a PCI interrupt-acknowledge transaction. - */ - i8259_init(0xfef00000, 0); -} - -static int __init -lopec_request_io(void) -{ - outb(0x00, 0x4d0); - outb(0xc0, 0x4d1); - - request_region(0x00, 0x20, "dma1"); - request_region(0x20, 0x20, "pic1"); - request_region(0x40, 0x20, "timer"); - request_region(0x80, 0x10, "dma page reg"); - request_region(0xa0, 0x20, "pic2"); - request_region(0xc0, 0x20, "dma2"); - - return 0; -} - -device_initcall(lopec_request_io); - -static void __init -lopec_map_io(void) -{ - io_block_mapping(0xf0000000, 0xf0000000, 0x10000000, _PAGE_IO); - io_block_mapping(0xb0000000, 0xb0000000, 0x10000000, _PAGE_IO); -} - -/* - * Set BAT 3 to map 0xf8000000 to end of physical memory space 1-to-1. - */ -static __inline__ void -lopec_set_bat(void) -{ - mb(); - mtspr(SPRN_DBAT1U, 0xf8000ffe); - mtspr(SPRN_DBAT1L, 0xf800002a); - mb(); -} - -TODC_ALLOC(); - -static void __init -lopec_setup_arch(void) -{ - - TODC_INIT(TODC_TYPE_MK48T37, 0, 0, - ioremap(0xffe80000, 0x8000), 8); - - loops_per_jiffy = 100000000/HZ; - - lopec_find_bridges(); - -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = Root_RAM0; - else -#elif defined(CONFIG_ROOT_NFS) - ROOT_DEV = Root_NFS; -#elif defined(CONFIG_BLK_DEV_IDEDISK) - ROOT_DEV = Root_HDA1; -#else - ROOT_DEV = Root_SDA1; -#endif - -#ifdef CONFIG_PPCBUG_NVRAM - /* Read in NVRAM data */ - init_prep_nvram(); - - /* if no bootargs, look in NVRAM */ - if ( cmd_line[0] == '\0' ) { - char *bootargs; - bootargs = prep_nvram_get_var("bootargs"); - if (bootargs != NULL) { - strcpy(cmd_line, bootargs); - /* again.. */ - strcpy(boot_command_line, cmd_line); - } - } -#endif -} - -void __init -platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - parse_bootinfo(find_bootinfo()); - lopec_set_bat(); - - isa_io_base = MPC10X_MAPB_ISA_IO_BASE; - isa_mem_base = MPC10X_MAPB_ISA_MEM_BASE; - pci_dram_offset = MPC10X_MAPB_DRAM_OFFSET; - ISA_DMA_THRESHOLD = 0x00ffffff; - DMA_MODE_READ = 0x44; - DMA_MODE_WRITE = 0x48; - ppc_do_canonicalize_irqs = 1; - - ppc_md.setup_arch = lopec_setup_arch; - ppc_md.show_cpuinfo = lopec_show_cpuinfo; - ppc_md.init_IRQ = lopec_init_IRQ; - ppc_md.get_irq = openpic_get_irq; - - ppc_md.restart = lopec_restart; - ppc_md.power_off = lopec_power_off; - ppc_md.halt = lopec_halt; - - ppc_md.setup_io_mappings = lopec_map_io; - - ppc_md.time_init = todc_time_init; - ppc_md.set_rtc_time = todc_set_rtc_time; - ppc_md.get_rtc_time = todc_get_rtc_time; - ppc_md.calibrate_decr = todc_calibrate_decr; - - ppc_md.nvram_read_val = todc_direct_read_val; - ppc_md.nvram_write_val = todc_direct_write_val; - -#ifdef CONFIG_SERIAL_TEXT_DEBUG - ppc_md.progress = gen550_progress; -#endif -} |