diff options
Diffstat (limited to 'arch/arm/mach-omap1/io.c')
| -rw-r--r-- | arch/arm/mach-omap1/io.c | 139 |
1 files changed, 88 insertions, 51 deletions
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c index 81c4e738506..499b8accb83 100644 --- a/arch/arm/mach-omap1/io.c +++ b/arch/arm/mach-omap1/io.c @@ -11,17 +11,18 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/io.h> #include <asm/tlb.h> #include <asm/mach/map.h> -#include <asm/io.h> -#include <asm/arch/mux.h> -#include <asm/arch/tc.h> -extern int omap1_clk_init(void); -extern void omap_check_revision(void); -extern void omap_sram_init(void); -extern void omapfb_reserve_sdram(void); +#include <mach/mux.h> +#include <mach/tc.h> +#include <linux/omap-dma.h> + +#include "iomap.h" +#include "common.h" +#include "clock.h" /* * The machine specific code may provide the extra mapping besides the @@ -29,24 +30,24 @@ extern void omapfb_reserve_sdram(void); */ static struct map_desc omap_io_desc[] __initdata = { { - .virtual = IO_VIRT, - .pfn = __phys_to_pfn(IO_PHYS), - .length = IO_SIZE, + .virtual = OMAP1_IO_VIRT, + .pfn = __phys_to_pfn(OMAP1_IO_PHYS), + .length = OMAP1_IO_SIZE, .type = MT_DEVICE } }; -#ifdef CONFIG_ARCH_OMAP730 -static struct map_desc omap730_io_desc[] __initdata = { +#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) +static struct map_desc omap7xx_io_desc[] __initdata = { { - .virtual = OMAP730_DSP_BASE, - .pfn = __phys_to_pfn(OMAP730_DSP_START), - .length = OMAP730_DSP_SIZE, + .virtual = OMAP7XX_DSP_BASE, + .pfn = __phys_to_pfn(OMAP7XX_DSP_START), + .length = OMAP7XX_DSP_SIZE, .type = MT_DEVICE }, { - .virtual = OMAP730_DSPREG_BASE, - .pfn = __phys_to_pfn(OMAP730_DSPREG_START), - .length = OMAP730_DSPREG_SIZE, + .virtual = OMAP7XX_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP7XX_DSPREG_START), + .length = OMAP7XX_DSPREG_SIZE, .type = MT_DEVICE } }; @@ -85,51 +86,44 @@ static struct map_desc omap16xx_io_desc[] __initdata = { #endif /* - * Maps common IO regions for omap1. This should only get called from - * board specific init. + * Maps common IO regions for omap1 */ -void __init omap1_map_common_io(void) +static void __init omap1_map_common_io(void) { 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 - if (cpu_is_omap730()) { - iotable_init(omap730_io_desc, ARRAY_SIZE(omap730_io_desc)); - } +#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) +void __init omap7xx_map_io(void) +{ + omap1_map_common_io(); + iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_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_omap16xx()) { - iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc)); - } +void __init omap15xx_map_io(void) +{ + omap1_map_common_io(); + iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc)); +} #endif - omap_sram_init(); - omapfb_reserve_sdram(); +#if defined(CONFIG_ARCH_OMAP16XX) +void __init omap16xx_map_io(void) +{ + omap1_map_common_io(); + iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc)); } +#endif /* - * Common low-level hardware init for omap1. This should only get called from - * board specific init. + * Common low-level hardware init for omap1. */ -void __init omap1_init_common_hw() +void __init omap1_init_early(void) { + omap_check_revision(); + /* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort * on a Posted Write in the TIPB Bridge". */ @@ -139,7 +133,50 @@ void __init omap1_init_common_hw() /* Must init clocks early to assure that timer interrupt works */ omap1_clk_init(); - omap1_mux_init(); } +void __init omap1_init_late(void) +{ + omap_serial_wakeup_init(); +} + +/* + * NOTE: Please use ioremap + __raw_read/write where possible instead of these + */ + +u8 omap_readb(u32 pa) +{ + return __raw_readb(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readb); + +u16 omap_readw(u32 pa) +{ + return __raw_readw(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readw); + +u32 omap_readl(u32 pa) +{ + return __raw_readl(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readl); + +void omap_writeb(u8 v, u32 pa) +{ + __raw_writeb(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writeb); + +void omap_writew(u16 v, u32 pa) +{ + __raw_writew(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writew); + +void omap_writel(u32 v, u32 pa) +{ + __raw_writel(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writel); |