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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-mmp/common.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-mmp/common.c')
-rw-r--r-- | arch/arm/mach-mmp/common.c | 65 |
1 files changed, 65 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..e94349d47 --- /dev/null +++ b/arch/arm/mach-mmp/common.c @@ -0,0 +1,65 @@ +// 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); +} |