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92b19ff50e
Quoting Arnd:
I was thinking the opposite approach and basically removing all uses
of IORESOURCE_CACHEABLE from the kernel. There are only a handful of
them.and we can probably replace them all with hardcoded
ioremap_cached() calls in the cases they are actually useful.
All existing usages of IORESOURCE_CACHEABLE call ioremap() instead of
ioremap_nocache() if the resource is cacheable, however ioremap() is
uncached by default. Clearly none of the existing usages care about the
cacheability. Particularly devm_ioremap_resource() never worked as
advertised since it always fell back to plain ioremap().
Clean this up as the new direction we want is to convert
ioremap_<type>() usages to memremap(..., flags).
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*
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* linux/arch/arm/mach-clps711x/cdb89712.c
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*
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* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/io.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mtd/plat-ram.h>
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#include <linux/mtd/partitions.h>
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#include <mach/hardware.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include "common.h"
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#include "devices.h"
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#define CDB89712_CS8900_BASE (CS2_PHYS_BASE + 0x300)
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#define CDB89712_CS8900_IRQ (IRQ_EINT3)
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static struct resource cdb89712_cs8900_resource[] __initdata = {
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DEFINE_RES_MEM(CDB89712_CS8900_BASE, SZ_1K),
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DEFINE_RES_IRQ(CDB89712_CS8900_IRQ),
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};
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static struct mtd_partition cdb89712_flash_partitions[] __initdata = {
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{
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.name = "Flash",
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.offset = 0,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data cdb89712_flash_pdata __initdata = {
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.width = 4,
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.probe_type = "map_rom",
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.parts = cdb89712_flash_partitions,
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.nr_parts = ARRAY_SIZE(cdb89712_flash_partitions),
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};
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static struct resource cdb89712_flash_resources[] __initdata = {
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DEFINE_RES_MEM(CS0_PHYS_BASE, SZ_8M),
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};
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static struct platform_device cdb89712_flash_pdev __initdata = {
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.name = "physmap-flash",
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.id = 0,
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.resource = cdb89712_flash_resources,
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.num_resources = ARRAY_SIZE(cdb89712_flash_resources),
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.dev = {
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.platform_data = &cdb89712_flash_pdata,
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},
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};
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static struct mtd_partition cdb89712_bootrom_partitions[] __initdata = {
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{
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.name = "BootROM",
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.offset = 0,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data cdb89712_bootrom_pdata __initdata = {
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.width = 4,
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.probe_type = "map_rom",
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.parts = cdb89712_bootrom_partitions,
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.nr_parts = ARRAY_SIZE(cdb89712_bootrom_partitions),
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};
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static struct resource cdb89712_bootrom_resources[] __initdata = {
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DEFINE_RES_NAMED(CS7_PHYS_BASE, SZ_128, "BOOTROM", IORESOURCE_MEM |
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IORESOURCE_READONLY),
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};
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static struct platform_device cdb89712_bootrom_pdev __initdata = {
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.name = "physmap-flash",
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.id = 1,
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.resource = cdb89712_bootrom_resources,
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.num_resources = ARRAY_SIZE(cdb89712_bootrom_resources),
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.dev = {
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.platform_data = &cdb89712_bootrom_pdata,
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},
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};
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static struct platdata_mtd_ram cdb89712_sram_pdata __initdata = {
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.bankwidth = 4,
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};
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static struct resource cdb89712_sram_resources[] __initdata = {
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DEFINE_RES_MEM(CLPS711X_SRAM_BASE, CLPS711X_SRAM_SIZE),
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};
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static struct platform_device cdb89712_sram_pdev __initdata = {
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.name = "mtd-ram",
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.id = 0,
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.resource = cdb89712_sram_resources,
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.num_resources = ARRAY_SIZE(cdb89712_sram_resources),
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.dev = {
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.platform_data = &cdb89712_sram_pdata,
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},
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};
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static void __init cdb89712_init(void)
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{
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clps711x_devices_init();
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platform_device_register(&cdb89712_flash_pdev);
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platform_device_register(&cdb89712_bootrom_pdev);
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platform_device_register(&cdb89712_sram_pdev);
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platform_device_register_simple("cs89x0", 0, cdb89712_cs8900_resource,
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ARRAY_SIZE(cdb89712_cs8900_resource));
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}
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MACHINE_START(CDB89712, "Cirrus-CDB89712")
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/* Maintainer: Ray Lehtiniemi */
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.atag_offset = 0x100,
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.map_io = clps711x_map_io,
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.init_irq = clps711x_init_irq,
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.init_time = clps711x_timer_init,
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.init_machine = cdb89712_init,
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.restart = clps711x_restart,
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MACHINE_END
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