/* * arch/ppc/platforms/cpci690.c * * Board setup routines for the Force CPCI690 board. * * Author: Mark A. Greer <mgreer@mvista.com> * * 2003 (c) MontaVista Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This programr * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #include <linux/config.h> #include <linux/delay.h> #include <linux/pci.h> #include <linux/ide.h> #include <linux/irq.h> #include <linux/fs.h> #include <linux/seq_file.h> #include <linux/console.h> #include <linux/initrd.h> #include <linux/root_dev.h> #include <linux/mv643xx.h> #include <asm/bootinfo.h> #include <asm/machdep.h> #include <asm/todc.h> #include <asm/time.h> #include <asm/mv64x60.h> #include <platforms/cpci690.h> #define BOARD_VENDOR "Force" #define BOARD_MACHINE "CPCI690" /* Set IDE controllers into Native mode? */ #define SET_PCI_IDE_NATIVE static struct mv64x60_handle bh; static u32 cpci690_br_base; static const unsigned int cpu_7xx[16] = { /* 7xx & 74xx (but not 745x) */ 18, 15, 14, 2, 4, 13, 5, 9, 6, 11, 8, 10, 16, 12, 7, 0 }; TODC_ALLOC(); static int __init cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) { struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); if (hose->index == 0) { static char pci_irq_table[][4] = /* * PCI IDSEL/INTPIN->INTLINE * A B C D */ { { 90, 91, 88, 89}, /* IDSEL 30/20 - Sentinel */ }; const long min_idsel = 20, max_idsel = 20, irqs_per_slot = 4; return PCI_IRQ_TABLE_LOOKUP; } else { static char pci_irq_table[][4] = /* * PCI IDSEL/INTPIN->INTLINE * A B C D */ { { 93, 94, 95, 92}, /* IDSEL 28/18 - PMC slot 2 */ { 0, 0, 0, 0}, /* IDSEL 29/19 - Not used */ { 94, 95, 92, 93}, /* IDSEL 30/20 - PMC slot 1 */ }; const long min_idsel = 18, max_idsel = 20, irqs_per_slot = 4; return PCI_IRQ_TABLE_LOOKUP; } } static int cpci690_get_cpu_speed(void) { unsigned long hid1; hid1 = mfspr(SPRN_HID1) >> 28; return CPCI690_BUS_FREQ * cpu_7xx[hid1]/2; } #define KB (1024UL) #define MB (1024UL * KB) #define GB (1024UL * MB) unsigned long __init cpci690_find_end_of_memory(void) { u32 mem_ctlr_size; static u32 board_size; static u8 first_time = 1; if (first_time) { /* Using cpci690_set_bat() mapping ==> virt addr == phys addr */ switch (in_8((u8 *) (cpci690_br_base + CPCI690_BR_MEM_CTLR)) & 0x07) { case 0x01: board_size = 256*MB; break; case 0x02: board_size = 512*MB; break; case 0x03: board_size = 768*MB; break; case 0x04: board_size = 1*GB; break; case 0x05: board_size = 1*GB + 512*MB; break; case 0x06: board_size = 2*GB; break; default: board_size = 0xffffffff; /* use mem ctlr size */ } /* switch */ mem_ctlr_size = mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE, MV64x60_TYPE_GT64260A); /* Check that mem ctlr & board reg agree. If not, pick MIN. */ if (board_size != mem_ctlr_size) { printk(KERN_WARNING "Board register & memory controller" "mem size disagree (board reg: 0x%lx, " "mem ctlr: 0x%lx)\n", (ulong)board_size, (ulong)mem_ctlr_size); board_size = min(board_size, mem_ctlr_size); } first_time = 0; } /* if */ return board_size; } static void __init cpci690_setup_bridge(void) { struct mv64x60_setup_info si; int i; memset(&si, 0, sizeof(si)); si.phys_reg_base = CONFIG_MV64X60_NEW_BASE; si.pci_0.enable_bus = 1; si.pci_0.pci_io.cpu_base = CPCI690_PCI0_IO_START_PROC_ADDR; si.pci_0.pci_io.pci_base_hi = 0; si.pci_0.pci_io.pci_base_lo = CPCI690_PCI0_IO_START_PCI_ADDR; si.pci_0.pci_io.size = CPCI690_PCI0_IO_SIZE; si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_0.pci_mem[0].cpu_base = CPCI690_PCI0_MEM_START_PROC_ADDR; si.pci_0.pci_mem[0].pci_base_hi = CPCI690_PCI0_MEM_START_PCI_HI_ADDR; si.pci_0.pci_mem[0].pci_base_lo = CPCI690_PCI0_MEM_START_PCI_LO_ADDR; si.pci_0.pci_mem[0].size = CPCI690_PCI0_MEM_SIZE; si.pci_0.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_0.pci_cmd_bits = 0; si.pci_0.latency_timer = 0x80; si.pci_1.enable_bus = 1; si.pci_1.pci_io.cpu_base = CPCI690_PCI1_IO_START_PROC_ADDR; si.pci_1.pci_io.pci_base_hi = 0; si.pci_1.pci_io.pci_base_lo = CPCI690_PCI1_IO_START_PCI_ADDR; si.pci_1.pci_io.size = CPCI690_PCI1_IO_SIZE; si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_1.pci_mem[0].cpu_base = CPCI690_PCI1_MEM_START_PROC_ADDR; si.pci_1.pci_mem[0].pci_base_hi = CPCI690_PCI1_MEM_START_PCI_HI_ADDR; si.pci_1.pci_mem[0].pci_base_lo = CPCI690_PCI1_MEM_START_PCI_LO_ADDR; si.pci_1.pci_mem[0].size = CPCI690_PCI1_MEM_SIZE; si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_1.pci_cmd_bits = 0; si.pci_1.latency_timer = 0x80; for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++) { si.cpu_prot_options[i] = 0; si.cpu_snoop_options[i] = GT64260_CPU_SNOOP_WB; si.pci_0.acc_cntl_options[i] = GT64260_PCI_ACC_CNTL_DREADEN | GT64260_PCI_ACC_CNTL_RDPREFETCH | GT64260_PCI_ACC_CNTL_RDLINEPREFETCH | GT64260_PCI_ACC_CNTL_RDMULPREFETCH | GT64260_PCI_ACC_CNTL_SWAP_NONE | GT64260_PCI_ACC_CNTL_MBURST_32_BTYES; si.pci_0.snoop_options[i] = GT64260_PCI_SNOOP_WB; si.pci_1.acc_cntl_options[i] = GT64260_PCI_ACC_CNTL_DREADEN | GT64260_PCI_ACC_CNTL_RDPREFETCH | GT64260_PCI_ACC_CNTL_RDLINEPREFETCH | GT64260_PCI_ACC_CNTL_RDMULPREFETCH | GT64260_PCI_ACC_CNTL_SWAP_NONE | GT64260_PCI_ACC_CNTL_MBURST_32_BTYES; si.pci_1.snoop_options[i] = GT64260_PCI_SNOOP_WB; } /* Lookup PCI host bridges */ if (mv64x60_init(&bh, &si)) printk(KERN_ERR "Bridge initialization failed.\n"); pci_dram_offset = 0; /* System mem at same addr on PCI & cpu bus */ ppc_md.pci_swizzle = common_swizzle; ppc_md.pci_map_irq = cpci690_map_irq; ppc_md.pci_exclude_device = mv64x60_pci_exclude_device; mv64x60_set_bus(&bh, 0, 0); bh.hose_a->first_busno = 0; bh.hose_a->last_busno = 0xff; bh.hose_a->last_busno = pciauto_bus_scan(bh.hose_a, 0); bh.hose_b->first_busno = bh.hose_a->last_busno + 1; mv64x60_set_bus(&bh, 1, bh.hose_b->first_busno); bh.hose_b->last_busno = 0xff; bh.hose_b->last_busno = pciauto_bus_scan(bh.hose_b, bh.hose_b->first_busno); } static void __init cpci690_setup_peripherals(void) { /* Set up windows to CPLD, RTC/TODC, IPMI. */ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN, CPCI690_BR_BASE, CPCI690_BR_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_0_WIN); cpci690_br_base = (u32)ioremap(CPCI690_BR_BASE, CPCI690_BR_SIZE); mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN, CPCI690_TODC_BASE, CPCI690_TODC_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN); TODC_INIT(TODC_TYPE_MK48T35, 0, 0, ioremap(CPCI690_TODC_BASE, CPCI690_TODC_SIZE), 8); mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN, CPCI690_IPMI_BASE, CPCI690_IPMI_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_2_WIN); mv64x60_set_bits(&bh, MV64x60_PCI0_ARBITER_CNTL, (1<<31)); mv64x60_set_bits(&bh, MV64x60_PCI1_ARBITER_CNTL, (1<<31)); mv64x60_set_bits(&bh, MV64x60_CPU_MASTER_CNTL, (1<<9)); /* Only 1 cpu */ /* * Turn off timer/counters. Not turning off watchdog timer because * can't read its reg on the 64260A so don't know if we'll be enabling * or disabling. */ mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL, ((1<<0) | (1<<8) | (1<<16) | (1<<24))); mv64x60_clr_bits(&bh, GT64260_TIMR_CNTR_4_7_CNTL, ((1<<0) | (1<<8) | (1<<16) | (1<<24))); /* * Set MPSC Multiplex RMII * NOTE: ethernet driver modifies bit 0 and 1 */ mv64x60_write(&bh, GT64260_MPP_SERIAL_PORTS_MULTIPLEX, 0x00001102); #define GPP_EXTERNAL_INTERRUPTS \ ((1<<24) | (1<<25) | (1<<26) | (1<<27) | \ (1<<28) | (1<<29) | (1<<30) | (1<<31)) /* PCI interrupts are inputs */ mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, GPP_EXTERNAL_INTERRUPTS); /* PCI interrupts are active low */ mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, GPP_EXTERNAL_INTERRUPTS); /* Clear any pending interrupts for these inputs and enable them. */ mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~GPP_EXTERNAL_INTERRUPTS); mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, GPP_EXTERNAL_INTERRUPTS); /* Route MPP interrupt inputs to GPP */ mv64x60_write(&bh, MV64x60_MPP_CNTL_2, 0x00000000); mv64x60_write(&bh, MV64x60_MPP_CNTL_3, 0x00000000); } static void __init cpci690_setup_arch(void) { if (ppc_md.progress) ppc_md.progress("cpci690_setup_arch: enter", 0); #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_SDA2; #endif if (ppc_md.progress) ppc_md.progress("cpci690_setup_arch: Enabling L2 cache", 0); /* Enable L2 and L3 caches (if 745x) */ _set_L2CR(_get_L2CR() | L2CR_L2E); _set_L3CR(_get_L3CR() | L3CR_L3E); if (ppc_md.progress) ppc_md.progress("cpci690_setup_arch: Initializing bridge", 0); cpci690_setup_bridge(); /* set up PCI bridge(s) */ cpci690_setup_peripherals(); /* set up chip selects/GPP/MPP etc */ if (ppc_md.progress) ppc_md.progress("cpci690_setup_arch: bridge init complete", 0); printk(KERN_INFO "%s %s port (C) 2003 MontaVista Software, Inc. " "(source@mvista.com)\n", BOARD_VENDOR, BOARD_MACHINE); if (ppc_md.progress) ppc_md.progress("cpci690_setup_arch: exit", 0); } /* Platform device data fixup routines. */ #if defined(CONFIG_SERIAL_MPSC) static void __init cpci690_fixup_mpsc_pdata(struct platform_device *pdev) { struct mpsc_pdata *pdata; pdata = (struct mpsc_pdata *)pdev->dev.platform_data; pdata->max_idle = 40; pdata->default_baud = CPCI690_MPSC_BAUD; pdata->brg_clk_src = CPCI690_MPSC_CLK_SRC; pdata->brg_clk_freq = CPCI690_BUS_FREQ; } static int __init cpci690_platform_notify(struct device *dev) { static struct { char *bus_id; void ((*rtn)(struct platform_device *pdev)); } dev_map[] = { { MPSC_CTLR_NAME ".0", cpci690_fixup_mpsc_pdata }, { MPSC_CTLR_NAME ".1", cpci690_fixup_mpsc_pdata }, }; struct platform_device *pdev; int i; if (dev && dev->bus_id) for (i=0; i<ARRAY_SIZE(dev_map); i++) if (!strncmp(dev->bus_id, dev_map[i].bus_id, BUS_ID_SIZE)) { pdev = container_of(dev, struct platform_device, dev); dev_map[i].rtn(pdev); } return 0; } #endif static void cpci690_reset_board(void) { u32 i = 10000; local_irq_disable(); out_8((u8 *)(cpci690_br_base + CPCI690_BR_SW_RESET), 0x11); while (i != 0) i++; panic("restart failed\n"); } static void cpci690_restart(char *cmd) { cpci690_reset_board(); } static void cpci690_halt(void) { while (1); /* NOTREACHED */ } static void cpci690_power_off(void) { cpci690_halt(); /* NOTREACHED */ } static int cpci690_show_cpuinfo(struct seq_file *m) { seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n"); seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n"); seq_printf(m, "cpu MHz\t\t: %d\n", cpci690_get_cpu_speed()/1000/1000); seq_printf(m, "bus MHz\t\t: %d\n", CPCI690_BUS_FREQ/1000/1000); return 0; } static void __init cpci690_calibrate_decr(void) { ulong freq; freq = CPCI690_BUS_FREQ / 4; printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n", freq/1000000, freq%1000000); tb_ticks_per_jiffy = freq / HZ; tb_to_us = mulhwu_scale_factor(freq, 1000000); } static __inline__ void cpci690_set_bat(u32 addr, u32 size) { addr &= 0xfffe0000; size &= 0x1ffe0000; size = ((size >> 17) - 1) << 2; mb(); mtspr(SPRN_DBAT1U, addr | size | 0x2); /* Vs == 1; Vp == 0 */ mtspr(SPRN_DBAT1L, addr | 0x2a); /* WIMG bits == 0101; PP == r/w access */ mb(); } #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) static void __init cpci690_map_io(void) { io_block_mapping(CONFIG_MV64X60_NEW_BASE, CONFIG_MV64X60_NEW_BASE, 128 * KB, _PAGE_IO); } #endif void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7) { #ifdef CONFIG_BLK_DEV_INITRD initrd_start=initrd_end=0; initrd_below_start_ok=0; #endif /* CONFIG_BLK_DEV_INITRD */ parse_bootinfo(find_bootinfo()); loops_per_jiffy = cpci690_get_cpu_speed() / HZ; isa_mem_base = 0; ppc_md.setup_arch = cpci690_setup_arch; ppc_md.show_cpuinfo = cpci690_show_cpuinfo; ppc_md.init_IRQ = gt64260_init_irq; ppc_md.get_irq = gt64260_get_irq; ppc_md.restart = cpci690_restart; ppc_md.power_off = cpci690_power_off; ppc_md.halt = cpci690_halt; ppc_md.find_end_of_memory = cpci690_find_end_of_memory; 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.nvram_read_val = todc_direct_read_val; ppc_md.nvram_write_val = todc_direct_write_val; ppc_md.calibrate_decr = cpci690_calibrate_decr; /* * Need to map in board regs (used by cpci690_find_end_of_memory()) * and the bridge's regs (used by progress); */ cpci690_set_bat(CPCI690_BR_BASE, 32 * MB); cpci690_br_base = CPCI690_BR_BASE; #ifdef CONFIG_SERIAL_TEXT_DEBUG ppc_md.setup_io_mappings = cpci690_map_io; ppc_md.progress = mv64x60_mpsc_progress; mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE); #endif /* CONFIG_SERIAL_TEXT_DEBUG */ #ifdef CONFIG_KGDB ppc_md.setup_io_mappings = cpci690_map_io; ppc_md.early_serial_map = cpci690_early_serial_map; #endif /* CONFIG_KGDB */ #if defined(CONFIG_SERIAL_MPSC) platform_notify = cpci690_platform_notify; #endif }