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https://github.com/torvalds/linux
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7c00692640
This patch is part of a series which removes references to omap730 in code which is shared with omap850, replacing them with references to omap7xx. This updates all the remaining omap730 references in miscellaneous local variables, macros and similar. Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com> Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
146 lines
3.5 KiB
C
146 lines
3.5 KiB
C
/*
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* linux/arch/arm/mach-omap1/io.c
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*
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* OMAP1 I/O mapping code
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <asm/tlb.h>
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#include <asm/mach/map.h>
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#include <mach/mux.h>
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#include <mach/tc.h>
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extern int omap1_clk_init(void);
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extern void omap_check_revision(void);
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extern void omap_sram_init(void);
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extern void omapfb_reserve_sdram(void);
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/*
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* The machine specific code may provide the extra mapping besides the
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* default mapping provided here.
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*/
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static struct map_desc omap_io_desc[] __initdata = {
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{
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.virtual = OMAP1_IO_VIRT,
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.pfn = __phys_to_pfn(OMAP1_IO_PHYS),
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.length = OMAP1_IO_SIZE,
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.type = MT_DEVICE
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}
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};
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#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
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static struct map_desc omap7xx_io_desc[] __initdata = {
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{
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.virtual = OMAP7XX_DSP_BASE,
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.pfn = __phys_to_pfn(OMAP7XX_DSP_START),
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.length = OMAP7XX_DSP_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = OMAP7XX_DSPREG_BASE,
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.pfn = __phys_to_pfn(OMAP7XX_DSPREG_START),
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.length = OMAP7XX_DSPREG_SIZE,
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.type = MT_DEVICE
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}
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};
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#endif
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#ifdef CONFIG_ARCH_OMAP15XX
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static struct map_desc omap1510_io_desc[] __initdata = {
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{
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.virtual = OMAP1510_DSP_BASE,
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.pfn = __phys_to_pfn(OMAP1510_DSP_START),
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.length = OMAP1510_DSP_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = OMAP1510_DSPREG_BASE,
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.pfn = __phys_to_pfn(OMAP1510_DSPREG_START),
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.length = OMAP1510_DSPREG_SIZE,
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.type = MT_DEVICE
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}
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};
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#endif
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#if defined(CONFIG_ARCH_OMAP16XX)
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static struct map_desc omap16xx_io_desc[] __initdata = {
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{
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.virtual = OMAP16XX_DSP_BASE,
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.pfn = __phys_to_pfn(OMAP16XX_DSP_START),
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.length = OMAP16XX_DSP_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = OMAP16XX_DSPREG_BASE,
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.pfn = __phys_to_pfn(OMAP16XX_DSPREG_START),
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.length = OMAP16XX_DSPREG_SIZE,
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.type = MT_DEVICE
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}
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};
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#endif
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/*
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* Maps common IO regions for omap1. This should only get called from
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* board specific init.
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*/
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void __init omap1_map_common_io(void)
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{
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iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
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/* Normally devicemaps_init() would flush caches and tlb after
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* mdesc->map_io(), but we must also do it here because of the CPU
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* revision check below.
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*/
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local_flush_tlb_all();
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flush_cache_all();
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/* We want to check CPU revision early for cpu_is_omapxxxx() macros.
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* IO space mapping must be initialized before we can do that.
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*/
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omap_check_revision();
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#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
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if (cpu_is_omap7xx()) {
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iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_io_desc));
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}
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#endif
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#ifdef CONFIG_ARCH_OMAP15XX
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if (cpu_is_omap15xx()) {
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iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc));
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}
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#endif
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#if defined(CONFIG_ARCH_OMAP16XX)
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if (cpu_is_omap16xx()) {
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iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc));
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}
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#endif
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omap_sram_init();
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omapfb_reserve_sdram();
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}
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/*
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* Common low-level hardware init for omap1. This should only get called from
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* board specific init.
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*/
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void __init omap1_init_common_hw(void)
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{
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/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
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* on a Posted Write in the TIPB Bridge".
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*/
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omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL);
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omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL);
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/* Must init clocks early to assure that timer interrupt works
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*/
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omap1_clk_init();
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omap1_mux_init();
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}
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