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Diffstat (limited to 'src/cpu/allwinner/a10/cpu.c')
-rw-r--r-- | src/cpu/allwinner/a10/cpu.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/cpu/allwinner/a10/cpu.c b/src/cpu/allwinner/a10/cpu.c new file mode 100644 index 0000000000..e0d4cdf4d5 --- /dev/null +++ b/src/cpu/allwinner/a10/cpu.c @@ -0,0 +1,48 @@ +/* + * Ramstage initialization for Allwinner CPUs + * + * Copyright (C) 2014 Alexandru Gagniuc <mr.nuke.me@gmail.com> + * Subject to the GNU GPL v2, or (at your option) any later version. + */ + +#include <console/console.h> +#include <device/device.h> +#include <cpu/cpu.h> +#include <cbmem.h> + + +static void cpu_enable_resources(device_t dev) +{ + ram_resource(dev, 0, CONFIG_SYS_SDRAM_BASE >> 10, + CONFIG_DRAM_SIZE_MB << 10); + /* TODO: Declare CBFS cache as reserved? There's no guarantee we won't + * overwrite it. It seems to stay intact, being so high in RAM + */ +} + +static void cpu_init(device_t dev) +{ + /* TODO: Check if anything else needs to be explicitly initialized */ +} + +static void cpu_noop(device_t dev) +{ +} + +static struct device_operations cpu_ops = { + .read_resources = cpu_noop, + .set_resources = cpu_noop, + .enable_resources = cpu_enable_resources, + .init = cpu_init, + .scan_bus = NULL, +}; + +static void a1x_cpu_enable_dev(device_t dev) +{ + dev->ops = &cpu_ops; +} + +struct chip_operations cpu_allwinner_a10_ops = { + CHIP_NAME("CPU Allwinner A10") + .enable_dev = a1x_cpu_enable_dev, +}; |