/* * Board setup routines for the Force CPCI690 board. * * Author: Mark A. Greer * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 void __iomem *cpci690_br_base; 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; } } #define GB (1024UL * 1024UL * 1024UL) static u32 cpci690_get_bus_freq(void) { if (boot_mem_size >= (1*GB)) /* bus speed based on mem size */ return 100000000; else return 133333333; } static const unsigned int cpu_750xx[32] = { /* 750FX & 750GX */ 0, 0, 2, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,/* 0-15*/ 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 0 /*16-31*/ }; static int cpci690_get_cpu_freq(void) { unsigned long pll_cfg; pll_cfg = (mfspr(SPRN_HID1) & 0xf8000000) >> 27; return cpci690_get_bus_freq() * cpu_750xx[pll_cfg]/2; } 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; ifirst_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 = 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_get_bus_freq(); } static int 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; ibus_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((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) { char *s; seq_printf(m, "cpu MHz\t\t: %d\n", (cpci690_get_cpu_freq() + 500000) / 1000000); seq_printf(m, "bus MHz\t\t: %d\n", (cpci690_get_bus_freq() + 500000) / 1000000); seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n"); seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n"); seq_printf(m, "FPGA Revision\t: %d\n", in_8(cpci690_br_base + CPCI690_BR_MEM_CTLR) >> 5); switch(bh.type) { case MV64x60_TYPE_GT64260A: s = "gt64260a"; break; case MV64x60_TYPE_GT64260B: s = "gt64260b"; break; case MV64x60_TYPE_MV64360: s = "mv64360"; break; case MV64x60_TYPE_MV64460: s = "mv64460"; break; default: s = "Unknown"; } seq_printf(m, "bridge type\t: %s\n", s); seq_printf(m, "bridge rev\t: 0x%x\n", bh.rev); #if defined(CONFIG_NOT_COHERENT_CACHE) seq_printf(m, "coherency\t: %s\n", "off"); #else seq_printf(m, "coherency\t: %s\n", "on"); #endif return 0; } static void __init cpci690_calibrate_decr(void) { ulong freq; freq = cpci690_get_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); } #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) static void __init cpci690_map_io(void) { io_block_mapping(CONFIG_MV64X60_NEW_BASE, CONFIG_MV64X60_NEW_BASE, 128 * 1024, _PAGE_IO); } #endif void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7) { parse_bootinfo(find_bootinfo()); #ifdef CONFIG_BLK_DEV_INITRD /* take care of initrd if we have one */ if (r4) { initrd_start = r4 + KERNELBASE; initrd_end = r5 + KERNELBASE; } #endif /* CONFIG_BLK_DEV_INITRD */ 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.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; #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) ppc_md.setup_io_mappings = cpci690_map_io; #ifdef CONFIG_SERIAL_TEXT_DEBUG ppc_md.progress = mv64x60_mpsc_progress; mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE); #endif /* CONFIG_SERIAL_TEXT_DEBUG */ #endif /* defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) */ #if defined(CONFIG_SERIAL_MPSC) platform_notify = cpci690_platform_notify; #endif }