diff options
Diffstat (limited to 'platform/andes/ae350/platform.c')
| -rw-r--r-- | platform/andes/ae350/platform.c | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/platform/andes/ae350/platform.c b/platform/andes/ae350/platform.c index 98acaaa..cf5417c 100644 --- a/platform/andes/ae350/platform.c +++ b/platform/andes/ae350/platform.c @@ -6,14 +6,18 @@ * Authors: * Zong Li <zong@andestech.com> * Nylon Chen <nylon7@andestech.com> + * Yu Chien Peter Lin <peterlin@andestech.com> */ +#include <libfdt.h> #include <sbi/riscv_asm.h> #include <sbi/riscv_encoding.h> #include <sbi/sbi_console.h> #include <sbi/sbi_const.h> +#include <sbi/sbi_hartmask.h> #include <sbi/sbi_ipi.h> #include <sbi/sbi_platform.h> +#include <sbi/sbi_string.h> #include <sbi/sbi_trap.h> #include <sbi_utils/fdt/fdt_helper.h> #include <sbi_utils/fdt/fdt_fixup.h> @@ -25,6 +29,49 @@ #include "plicsw.h" #include "cache.h" +struct sbi_platform platform; +unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1, + unsigned long arg2, unsigned long arg3, + unsigned long arg4) +{ + const char *model; + void *fdt = (void *)arg1; + u32 hartid, hart_count = 0; + int rc, root_offset, cpus_offset, cpu_offset, len; + + root_offset = fdt_path_offset(fdt, "/"); + if (root_offset < 0) + goto fail; + + model = fdt_getprop(fdt, root_offset, "model", &len); + if (model) + sbi_strncpy(platform.name, model, sizeof(platform.name) - 1); + + cpus_offset = fdt_path_offset(fdt, "/cpus"); + if (cpus_offset < 0) + goto fail; + + fdt_for_each_subnode(cpu_offset, fdt, cpus_offset) { + rc = fdt_parse_hart_id(fdt, cpu_offset, &hartid); + if (rc) + continue; + + if (SBI_HARTMASK_MAX_BITS <= hartid) + continue; + + hart_count++; + } + + platform.hart_count = hart_count; + + /* Return original FDT pointer */ + return arg1; + +fail: + while (1) + wfi(); +} + /* Platform final initialization. */ static int ae350_final_init(bool cold_boot) { @@ -123,14 +170,14 @@ const struct sbi_platform_operations platform_ops = { .vendor_ext_provider = ae350_vendor_ext_provider }; -const struct sbi_platform platform = { +struct sbi_platform platform = { .opensbi_version = OPENSBI_VERSION, .platform_version = SBI_PLATFORM_VERSION(CONFIG_PLATFORM_ANDES_AE350_MAJOR_VER, CONFIG_PLATFORM_ANDES_AE350_MINOR_VER), .name = CONFIG_PLATFORM_ANDES_AE350_NAME, .features = SBI_PLATFORM_DEFAULT_FEATURES, - .hart_count = AE350_HART_COUNT, + .hart_count = SBI_HARTMASK_MAX_BITS, .hart_stack_size = SBI_PLATFORM_DEFAULT_HART_STACK_SIZE, .platform_ops_addr = (unsigned long)&platform_ops }; |