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https://github.com/torvalds/linux
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77acc85ce7
Since all board support is now gone, a lot of code in the platform is no longer called and can be removed as well. The remaining parts are: * The interrupt numbers for pxa910 are still needed for the power management support. * The 'mfp' device is still statically initialized from platform code, though this could be moved into the pinctrl code * The CPU identification code is used for the cpu_is_mmp*() macros. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-mmp/common.c
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*
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* Code common to PXA168 processor lines
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <asm/page.h>
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#include <asm/mach/map.h>
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#include <asm/system_misc.h>
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#include "addr-map.h"
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#include <linux/soc/mmp/cputype.h>
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#include "common.h"
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#define MMP_CHIPID CIU_REG(0x00)
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unsigned int mmp_chip_id;
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EXPORT_SYMBOL(mmp_chip_id);
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static struct map_desc standard_io_desc[] __initdata = {
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{
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.pfn = __phys_to_pfn(APB_PHYS_BASE),
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.virtual = (unsigned long)APB_VIRT_BASE,
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.length = APB_PHYS_SIZE,
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.type = MT_DEVICE,
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}, {
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.pfn = __phys_to_pfn(AXI_PHYS_BASE),
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.virtual = (unsigned long)AXI_VIRT_BASE,
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.length = AXI_PHYS_SIZE,
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.type = MT_DEVICE,
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},
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};
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static struct map_desc mmp2_io_desc[] __initdata = {
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{
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.pfn = __phys_to_pfn(PGU_PHYS_BASE),
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.virtual = (unsigned long)PGU_VIRT_BASE,
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.length = PGU_PHYS_SIZE,
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.type = MT_DEVICE,
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},
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};
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void __init mmp_map_io(void)
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{
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iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
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/* this is early, initialize mmp_chip_id here */
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mmp_chip_id = __raw_readl(MMP_CHIPID);
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}
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void __init mmp2_map_io(void)
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{
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mmp_map_io();
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iotable_init(mmp2_io_desc, ARRAY_SIZE(mmp2_io_desc));
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}
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