X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fplatforms%2Fcpci690.c;h=790475c22fd7405d896f4d5e12390d0f273eadc1;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=507870c9a97a160e8852b7da45d57fb69b9518a9;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git diff --git a/arch/ppc/platforms/cpci690.c b/arch/ppc/platforms/cpci690.c index 507870c9a..790475c22 100644 --- a/arch/ppc/platforms/cpci690.c +++ b/arch/ppc/platforms/cpci690.c @@ -1,6 +1,4 @@ /* - * arch/ppc/platforms/cpci690.c - * * Board setup routines for the Force CPCI690 board. * * Author: Mark A. Greer @@ -21,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -35,11 +34,7 @@ #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 -}; +static void __iomem *cpci690_br_base; TODC_ALLOC(); @@ -55,7 +50,7 @@ cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) * A B C D */ { - { 90, 91, 88, 89}, /* IDSEL 30/20 - Sentinel */ + { 90, 91, 88, 89 }, /* IDSEL 30/20 - Sentinel */ }; const long min_idsel = 20, max_idsel = 20, irqs_per_slot = 4; @@ -67,9 +62,9 @@ cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) * 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 */ + { 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; @@ -77,68 +72,29 @@ cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) } } -static int -cpci690_get_cpu_speed(void) -{ - unsigned long hid1; +#define GB (1024UL * 1024UL * 1024UL) - hid1 = mfspr(SPRN_HID1) >> 28; - return CPCI690_BUS_FREQ * cpu_7xx[hid1]/2; +static u32 +cpci690_get_bus_freq(void) +{ + if (boot_mem_size >= (1*GB)) /* bus speed based on mem size */ + return 100000000; + else + return 133333333; } -#define KB (1024UL) -#define MB (1024UL * KB) -#define GB (1024UL * MB) +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*/ +}; -unsigned long __init -cpci690_find_end_of_memory(void) +static int +cpci690_get_cpu_freq(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; + unsigned long pll_cfg; + + pll_cfg = (mfspr(SPRN_HID1) & 0xf8000000) >> 27; + return cpci690_get_bus_freq() * cpu_750xx[pll_cfg]/2; } static void __init @@ -228,7 +184,7 @@ cpci690_setup_peripherals(void) 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); + 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); @@ -329,10 +285,10 @@ cpci690_fixup_mpsc_pdata(struct platform_device *pdev) 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; + pdata->brg_clk_freq = cpci690_get_bus_freq(); } -static int __init +static int cpci690_platform_notify(struct device *dev) { static struct { @@ -365,7 +321,7 @@ cpci690_reset_board(void) u32 i = 10000; local_irq_disable(); - out_8((u8 *)(cpci690_br_base + CPCI690_BR_SW_RESET), 0x11); + out_8((cpci690_br_base + CPCI690_BR_SW_RESET), 0x11); while (i != 0) i++; panic("restart failed\n"); @@ -394,10 +350,40 @@ cpci690_power_off(void) 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, "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); + 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; } @@ -407,7 +393,7 @@ cpci690_calibrate_decr(void) { ulong freq; - freq = CPCI690_BUS_FREQ / 4; + freq = cpci690_get_bus_freq() / 4; printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n", freq/1000000, freq%1000000); @@ -416,25 +402,12 @@ cpci690_calibrate_decr(void) 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) +#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 * KB, _PAGE_IO); + 128 * 1024, _PAGE_IO); } #endif @@ -442,14 +415,15 @@ 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; +#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; @@ -460,7 +434,6 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5, 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; @@ -468,22 +441,13 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5, 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 +#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 */ -#ifdef CONFIG_KGDB - ppc_md.setup_io_mappings = cpci690_map_io; - ppc_md.early_serial_map = cpci690_early_serial_map; -#endif /* CONFIG_KGDB */ +#endif /* defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) */ #if defined(CONFIG_SERIAL_MPSC) platform_notify = cpci690_platform_notify;