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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * linux/arch/arm/mach-mmp/common.c
- *
- * Code common to PXA168 processor lines
- */
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <asm/page.h>
- #include <asm/mach/map.h>
- #include <asm/system_misc.h>
- #include "addr-map.h"
- #include <linux/soc/mmp/cputype.h>
- #include "common.h"
- #define MMP_CHIPID CIU_REG(0x00)
- unsigned int mmp_chip_id;
- EXPORT_SYMBOL(mmp_chip_id);
- static struct map_desc standard_io_desc[] __initdata = {
- {
- .pfn = __phys_to_pfn(APB_PHYS_BASE),
- .virtual = (unsigned long)APB_VIRT_BASE,
- .length = APB_PHYS_SIZE,
- .type = MT_DEVICE,
- }, {
- .pfn = __phys_to_pfn(AXI_PHYS_BASE),
- .virtual = (unsigned long)AXI_VIRT_BASE,
- .length = AXI_PHYS_SIZE,
- .type = MT_DEVICE,
- },
- };
- static struct map_desc mmp2_io_desc[] __initdata = {
- {
- .pfn = __phys_to_pfn(PGU_PHYS_BASE),
- .virtual = (unsigned long)PGU_VIRT_BASE,
- .length = PGU_PHYS_SIZE,
- .type = MT_DEVICE,
- },
- };
- void __init mmp_map_io(void)
- {
- iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
- /* this is early, initialize mmp_chip_id here */
- mmp_chip_id = __raw_readl(MMP_CHIPID);
- }
- void __init mmp2_map_io(void)
- {
- mmp_map_io();
- iotable_init(mmp2_io_desc, ARRAY_SIZE(mmp2_io_desc));
- }
- void mmp_restart(enum reboot_mode mode, const char *cmd)
- {
- soft_restart(0);
- }
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