X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Farm%2Fmach-omap1%2Fio.c;h=3afe540149f74d11795f0050d4e5767d0729a034;hb=86ddbf62c2daefebba13e3c79f88cbdfde766176;hp=207df0fe934dacbc3c65a9d6fe8e8a3932837c54;hpb=bb13b5fdba16d5b30fe97f3d167bb138b978b71c;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c index 207df0f..3afe540 100644 --- a/arch/arm/mach-omap1/io.c +++ b/arch/arm/mach-omap1/io.c @@ -8,71 +8,116 @@ * published by the Free Software Foundation. */ -#include #include #include #include +#include +#include #include -#include -#include +#include +#include -extern int clk_init(void); +extern int omap1_clk_init(void); extern void omap_check_revision(void); +extern void omap_sram_init(void); +extern void omapfb_reserve_sdram(void); /* * The machine specific code may provide the extra mapping besides the * default mapping provided here. */ static struct map_desc omap_io_desc[] __initdata = { - { IO_VIRT, IO_PHYS, IO_SIZE, MT_DEVICE }, + { + .virtual = IO_VIRT, + .pfn = __phys_to_pfn(IO_PHYS), + .length = IO_SIZE, + .type = MT_DEVICE + } }; #ifdef CONFIG_ARCH_OMAP730 static struct map_desc omap730_io_desc[] __initdata = { - { OMAP730_DSP_BASE, OMAP730_DSP_START, OMAP730_DSP_SIZE, MT_DEVICE }, - { OMAP730_DSPREG_BASE, OMAP730_DSPREG_START, OMAP730_DSPREG_SIZE, MT_DEVICE }, - { OMAP730_SRAM_BASE, OMAP730_SRAM_START, OMAP730_SRAM_SIZE, MT_DEVICE } + { + .virtual = OMAP730_DSP_BASE, + .pfn = __phys_to_pfn(OMAP730_DSP_START), + .length = OMAP730_DSP_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP730_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP730_DSPREG_START), + .length = OMAP730_DSPREG_SIZE, + .type = MT_DEVICE + } }; #endif -#ifdef CONFIG_ARCH_OMAP1510 +#ifdef CONFIG_ARCH_OMAP850 +static struct map_desc omap850_io_desc[] __initdata = { + { + .virtual = OMAP850_DSP_BASE, + .pfn = __phys_to_pfn(OMAP850_DSP_START), + .length = OMAP850_DSP_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP850_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP850_DSPREG_START), + .length = OMAP850_DSPREG_SIZE, + .type = MT_DEVICE + } +}; +#endif + +#ifdef CONFIG_ARCH_OMAP15XX static struct map_desc omap1510_io_desc[] __initdata = { - { OMAP1510_DSP_BASE, OMAP1510_DSP_START, OMAP1510_DSP_SIZE, MT_DEVICE }, - { OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_START, OMAP1510_DSPREG_SIZE, MT_DEVICE }, - { OMAP1510_SRAM_BASE, OMAP1510_SRAM_START, OMAP1510_SRAM_SIZE, MT_DEVICE } + { + .virtual = OMAP1510_DSP_BASE, + .pfn = __phys_to_pfn(OMAP1510_DSP_START), + .length = OMAP1510_DSP_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP1510_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP1510_DSPREG_START), + .length = OMAP1510_DSPREG_SIZE, + .type = MT_DEVICE + } }; #endif #if defined(CONFIG_ARCH_OMAP16XX) -static struct map_desc omap1610_io_desc[] __initdata = { - { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE }, - { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE }, - { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP1610_SRAM_SIZE, MT_DEVICE } +static struct map_desc omap16xx_io_desc[] __initdata = { + { + .virtual = OMAP16XX_DSP_BASE, + .pfn = __phys_to_pfn(OMAP16XX_DSP_START), + .length = OMAP16XX_DSP_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP16XX_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP16XX_DSPREG_START), + .length = OMAP16XX_DSPREG_SIZE, + .type = MT_DEVICE + } }; +#endif -static struct map_desc omap5912_io_desc[] __initdata = { - { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE }, - { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE }, /* - * The OMAP5912 has 250kByte internal SRAM. Because the mapping is baseed on page - * size (4kByte), it seems that the last 2kByte (=0x800) of the 250kByte are not mapped. - * Add additional 2kByte (0x800) so that the last page is mapped and the last 2kByte - * can be used. + * Maps common IO regions for omap1. This should only get called from + * board specific init. */ - { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP5912_SRAM_SIZE + 0x800, MT_DEVICE } -}; -#endif - -static int initialized = 0; - -static void __init _omap_map_io(void) +void __init omap1_map_common_io(void) { - initialized = 1; - - /* We have to initialize the IO space mapping before we can run - * cpu_is_omapxxx() macros. */ iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc)); + + /* Normally devicemaps_init() would flush caches and tlb after + * mdesc->map_io(), but we must also do it here because of the CPU + * revision check below. + */ + local_flush_tlb_all(); + flush_cache_all(); + + /* We want to check CPU revision early for cpu_is_omapxxxx() macros. + * IO space mapping must be initialized before we can do that. + */ omap_check_revision(); #ifdef CONFIG_ARCH_OMAP730 @@ -80,20 +125,34 @@ static void __init _omap_map_io(void) iotable_init(omap730_io_desc, ARRAY_SIZE(omap730_io_desc)); } #endif -#ifdef CONFIG_ARCH_OMAP1510 - if (cpu_is_omap1510()) { + +#ifdef CONFIG_ARCH_OMAP850 + if (cpu_is_omap850()) { + iotable_init(omap850_io_desc, ARRAY_SIZE(omap850_io_desc)); + } +#endif + +#ifdef CONFIG_ARCH_OMAP15XX + if (cpu_is_omap15xx()) { iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc)); } #endif #if defined(CONFIG_ARCH_OMAP16XX) - if (cpu_is_omap1610() || cpu_is_omap1710()) { - iotable_init(omap1610_io_desc, ARRAY_SIZE(omap1610_io_desc)); - } - if (cpu_is_omap5912()) { - iotable_init(omap5912_io_desc, ARRAY_SIZE(omap5912_io_desc)); + if (cpu_is_omap16xx()) { + iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc)); } #endif + omap_sram_init(); + omapfb_reserve_sdram(); +} + +/* + * Common low-level hardware init for omap1. This should only get called from + * board specific init. + */ +void __init omap1_init_common_hw(void) +{ /* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort * on a Posted Write in the TIPB Bridge". */ @@ -102,14 +161,8 @@ static void __init _omap_map_io(void) /* Must init clocks early to assure that timer interrupt works */ - clk_init(); -} + omap1_clk_init(); -/* - * This should only get called from board specific init - */ -void omap_map_common_io(void) -{ - if (!initialized) - _omap_map_io(); + omap1_mux_init(); } +