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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-mmp/common.c |
Initial import
Diffstat (limited to 'arch/arm/mach-mmp/common.c')
-rw-r--r-- | arch/arm/mach-mmp/common.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c new file mode 100644 index 000000000..c03b4ab58 --- /dev/null +++ b/arch/arm/mach-mmp/common.c @@ -0,0 +1,53 @@ +/* + * linux/arch/arm/mach-mmp/common.c + * + * Code common to PXA168 processor lines + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#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 <mach/addr-map.h> +#include <mach/cputype.h> + +#include "common.h" + +#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00) + +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, + }, +}; + +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 mmp_restart(enum reboot_mode mode, const char *cmd) +{ + soft_restart(0); +} |