diff options
Diffstat (limited to 'arch/ppc/platforms/spruce.c')
| -rw-r--r-- | arch/ppc/platforms/spruce.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/arch/ppc/platforms/spruce.c b/arch/ppc/platforms/spruce.c deleted file mode 100644 index a344134f14b8..000000000000 --- a/arch/ppc/platforms/spruce.c +++ /dev/null @@ -1,322 +0,0 @@ -/* - * Board and PCI setup routines for IBM Spruce - * - * Author: MontaVista Software <source@mvista.com> - * - * 2000-2004 (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/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/initrd.h> -#include <linux/console.h> -#include <linux/delay.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/serial_core.h> -#include <linux/serial_8250.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/machdep.h> -#include <asm/time.h> -#include <asm/todc.h> -#include <asm/bootinfo.h> -#include <asm/kgdb.h> - -#include <syslib/cpc700.h> - -#include "spruce.h" - -static inline int -spruce_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 3 */ - {24, 25, 26, 23}, /* IDSEL 2 - PCI slot 2 */ - {25, 26, 23, 24}, /* IDSEL 3 - PCI slot 1 */ - {26, 23, 24, 25}, /* IDSEL 4 - PCI slot 0 */ - }; - - const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} - -static void __init -spruce_setup_hose(void) -{ - struct pci_controller *hose; - - /* Setup hose */ - hose = pcibios_alloc_controller(); - if (!hose) - return; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - pci_init_resource(&hose->io_resource, - SPRUCE_PCI_LOWER_IO, - SPRUCE_PCI_UPPER_IO, - IORESOURCE_IO, - "PCI host bridge"); - - pci_init_resource(&hose->mem_resources[0], - SPRUCE_PCI_LOWER_MEM, - SPRUCE_PCI_UPPER_MEM, - IORESOURCE_MEM, - "PCI host bridge"); - - hose->io_space.start = SPRUCE_PCI_LOWER_IO; - hose->io_space.end = SPRUCE_PCI_UPPER_IO; - hose->mem_space.start = SPRUCE_PCI_LOWER_MEM; - hose->mem_space.end = SPRUCE_PCI_UPPER_MEM; - hose->io_base_virt = (void *)SPRUCE_ISA_IO_BASE; - - setup_indirect_pci(hose, - SPRUCE_PCI_CONFIG_ADDR, - SPRUCE_PCI_CONFIG_DATA); - - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = spruce_map_irq; -} - -/* - * CPC700 PIC interrupt programming table - * - * First entry is the sensitivity (level/edge), second is the polarity. - */ -unsigned int cpc700_irq_assigns[32][2] = { - { 1, 1 }, /* IRQ 0: ECC Correctable Error - rising edge */ - { 1, 1 }, /* IRQ 1: PCI Write Mem Range - rising edge */ - { 0, 1 }, /* IRQ 2: PCI Write Command Reg - active high */ - { 0, 1 }, /* IRQ 3: UART 0 - active high */ - { 0, 1 }, /* IRQ 4: UART 1 - active high */ - { 0, 1 }, /* IRQ 5: ICC 0 - active high */ - { 0, 1 }, /* IRQ 6: ICC 1 - active high */ - { 0, 1 }, /* IRQ 7: GPT Compare 0 - active high */ - { 0, 1 }, /* IRQ 8: GPT Compare 1 - active high */ - { 0, 1 }, /* IRQ 9: GPT Compare 2 - active high */ - { 0, 1 }, /* IRQ 10: GPT Compare 3 - active high */ - { 0, 1 }, /* IRQ 11: GPT Compare 4 - active high */ - { 0, 1 }, /* IRQ 12: GPT Capture 0 - active high */ - { 0, 1 }, /* IRQ 13: GPT Capture 1 - active high */ - { 0, 1 }, /* IRQ 14: GPT Capture 2 - active high */ - { 0, 1 }, /* IRQ 15: GPT Capture 3 - active high */ - { 0, 1 }, /* IRQ 16: GPT Capture 4 - active high */ - { 0, 0 }, /* IRQ 17: Reserved */ - { 0, 0 }, /* IRQ 18: Reserved */ - { 0, 0 }, /* IRQ 19: Reserved */ - { 0, 1 }, /* IRQ 20: FPGA EXT_IRQ0 - active high */ - { 1, 1 }, /* IRQ 21: Mouse - rising edge */ - { 1, 1 }, /* IRQ 22: Keyboard - rising edge */ - { 0, 0 }, /* IRQ 23: PCI Slot 3 - active low */ - { 0, 0 }, /* IRQ 24: PCI Slot 2 - active low */ - { 0, 0 }, /* IRQ 25: PCI Slot 1 - active low */ - { 0, 0 }, /* IRQ 26: PCI Slot 0 - active low */ -}; - -static void __init -spruce_calibrate_decr(void) -{ - int freq, divisor = 4; - - /* determine processor bus speed */ - freq = SPRUCE_BUS_SPEED; - tb_ticks_per_jiffy = freq / HZ / divisor; - tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000); -} - -static int -spruce_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: IBM\n"); - seq_printf(m, "machine\t\t: Spruce\n"); - - return 0; -} - -static void __init -spruce_early_serial_map(void) -{ - u32 uart_clk; - struct uart_port serial_req; - - if (SPRUCE_UARTCLK_IS_33M(readb(SPRUCE_FPGA_REG_A))) - uart_clk = SPRUCE_BAUD_33M * 16; - else - uart_clk = SPRUCE_BAUD_30M * 16; - - /* Setup serial port access */ - memset(&serial_req, 0, sizeof(serial_req)); - serial_req.uartclk = uart_clk; - serial_req.irq = UART0_INT; - serial_req.flags = UPF_BOOT_AUTOCONF; - serial_req.iotype = UPIO_MEM; - serial_req.membase = (u_char *)UART0_IO_BASE; - serial_req.regshift = 0; - -#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG) - gen550_init(0, &serial_req); -#endif -#ifdef CONFIG_SERIAL_8250 - if (early_serial_setup(&serial_req) != 0) - printk("Early serial init of port 0 failed\n"); -#endif - - /* Assume early_serial_setup() doesn't modify serial_req */ - serial_req.line = 1; - serial_req.irq = UART1_INT; - serial_req.membase = (u_char *)UART1_IO_BASE; - -#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG) - gen550_init(1, &serial_req); -#endif -#ifdef CONFIG_SERIAL_8250 - if (early_serial_setup(&serial_req) != 0) - printk("Early serial init of port 1 failed\n"); -#endif -} - -TODC_ALLOC(); - -static void __init -spruce_setup_arch(void) -{ - /* Setup TODC access */ - TODC_INIT(TODC_TYPE_DS1643, 0, 0, SPRUCE_RTC_BASE_ADDR, 8); - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000 / HZ; - - /* Setup PCI host bridge */ - spruce_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_SDA1; -#endif - - /* Identify the system */ - printk(KERN_INFO "System Identification: IBM Spruce\n"); - printk(KERN_INFO "Port by MontaVista Software, Inc. (source@mvista.com)\n"); -} - -static void -spruce_restart(char *cmd) -{ - local_irq_disable(); - - /* SRR0 has system reset vector, SRR1 has default MSR value */ - /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */ - __asm__ __volatile__ - ("\n\ - lis 3,0xfff0 \n\ - ori 3,3,0x0100 \n\ - mtspr 26,3 \n\ - li 3,0 \n\ - mtspr 27,3 \n\ - rfi \n\ - "); - for(;;); -} - -static void -spruce_power_off(void) -{ - for(;;); -} - -static void -spruce_halt(void) -{ - spruce_restart(NULL); -} - -static void __init -spruce_map_io(void) -{ - io_block_mapping(SPRUCE_PCI_IO_BASE, SPRUCE_PCI_PHY_IO_BASE, - 0x08000000, _PAGE_IO); -} - -/* - * Set BAT 3 to map 0xf8000000 to end of physical memory space 1-to-1. - */ -static __inline__ void -spruce_set_bat(void) -{ - mb(); - mtspr(SPRN_DBAT1U, 0xf8000ffe); - mtspr(SPRN_DBAT1L, 0xf800002a); - mb(); -} - -void __init -platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - parse_bootinfo(find_bootinfo()); - - /* Map in board regs, etc. */ - spruce_set_bat(); - - isa_io_base = SPRUCE_ISA_IO_BASE; - pci_dram_offset = SPRUCE_PCI_SYS_MEM_BASE; - - ppc_md.setup_arch = spruce_setup_arch; - ppc_md.show_cpuinfo = spruce_show_cpuinfo; - ppc_md.init_IRQ = cpc700_init_IRQ; - ppc_md.get_irq = cpc700_get_irq; - - ppc_md.setup_io_mappings = spruce_map_io; - - ppc_md.restart = spruce_restart; - ppc_md.power_off = spruce_power_off; - ppc_md.halt = spruce_halt; - - 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 = spruce_calibrate_decr; - - ppc_md.nvram_read_val = todc_direct_read_val; - ppc_md.nvram_write_val = todc_direct_write_val; - - spruce_early_serial_map(); - -#ifdef CONFIG_SERIAL_TEXT_DEBUG - ppc_md.progress = gen550_progress; -#endif /* CONFIG_SERIAL_TEXT_DEBUG */ -#ifdef CONFIG_KGDB - ppc_md.kgdb_map_scc = gen550_kgdb_map_scc; -#endif -} |