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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-mmp/common.c | |
download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip |
initial_commit
Diffstat (limited to 'arch/arm/mach-mmp/common.c')
-rw-r--r-- | arch/arm/mach-mmp/common.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c new file mode 100644 index 00000000..0ec0ca80 --- /dev/null +++ b/arch/arm/mach-mmp/common.c @@ -0,0 +1,47 @@ +/* + * 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 <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 = APB_VIRT_BASE, + .length = APB_PHYS_SIZE, + .type = MT_DEVICE, + }, { + .pfn = __phys_to_pfn(AXI_PHYS_BASE), + .virtual = 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); +} |