diff options
Diffstat (limited to 'board/renesas/rcar-common/common.c')
| -rw-r--r-- | board/renesas/rcar-common/common.c | 200 |
1 files changed, 28 insertions, 172 deletions
diff --git a/board/renesas/rcar-common/common.c b/board/renesas/rcar-common/common.c index 499c31408f6..90eb468e4c4 100644 --- a/board/renesas/rcar-common/common.c +++ b/board/renesas/rcar-common/common.c @@ -15,201 +15,57 @@ #include <asm/io.h> #include <dm/uclass-internal.h> #include <asm/arch/renesas.h> +#include <asm/system.h> #include <linux/libfdt.h> #ifdef CONFIG_RCAR_64 DECLARE_GLOBAL_DATA_PTR; -/* If the firmware passed a device tree use it for e.g. U-Boot DRAM setup. */ -extern u64 rcar_atf_boot_args[]; - -#define FDT_RPC_PATH "/soc/spi@ee200000" - -static void apply_atf_overlay(void *fdt_blob) -{ - void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]); - - if (fdt_magic(atf_fdt_blob) == FDT_MAGIC) - fdt_overlay_apply_node(fdt_blob, 0, atf_fdt_blob, 0); -} - -int fdtdec_board_setup(const void *fdt_blob) -{ - apply_atf_overlay((void *)fdt_blob); - - return 0; -} - int dram_init(void) { - return fdtdec_setup_mem_size_base(); -} - -int dram_init_banksize(void) -{ - fdtdec_setup_memory_banksize(); - - return 0; -} - -int __weak board_init(void) -{ - return 0; -} - -#if defined(CONFIG_RCAR_GEN3) -#define RST_BASE 0xE6160000 -#define RST_CA57RESCNT (RST_BASE + 0x40) -#define RST_CA53RESCNT (RST_BASE + 0x44) -#define RST_RSTOUTCR (RST_BASE + 0x58) -#define RST_CA57_CODE 0xA5A5000F -#define RST_CA53_CODE 0x5A5A000F - -void __weak reset_cpu(void) -{ - unsigned long midr, cputype; - - asm volatile("mrs %0, midr_el1" : "=r" (midr)); - cputype = (midr >> 4) & 0xfff; - - if (cputype == 0xd03) - writel(RST_CA53_CODE, RST_CA53RESCNT); - else if (cputype == 0xd07) - writel(RST_CA57_CODE, RST_CA57RESCNT); - else - hang(); -} -#elif defined(CONFIG_RCAR_GEN4) -#define RST_BASE 0xE6160000 /* Domain0 */ -#define RST_SRESCR0 (RST_BASE + 0x18) -#define RST_SPRES 0x5AA58000 - -void __weak reset_cpu(void) -{ - writel(RST_SPRES, RST_SRESCR0); -} -#else -#error Neither CONFIG_RCAR_GEN3 nor CONFIG_RCAR_GEN4 are set -#endif - -#if defined(CONFIG_OF_BOARD_SETUP) -static int is_mem_overlap(void *blob, int first_mem_node, int curr_mem_node) -{ - struct fdt_resource first_mem_res, curr_mem_res; - int curr_mem_reg, first_mem_reg = 0; - int ret; - - for (;;) { - ret = fdt_get_resource(blob, first_mem_node, "reg", - first_mem_reg++, &first_mem_res); - if (ret) /* No more entries, no overlap found */ - return 0; - - curr_mem_reg = 0; - for (;;) { - ret = fdt_get_resource(blob, curr_mem_node, "reg", - curr_mem_reg++, &curr_mem_res); - if (ret) /* No more entries, check next tuple */ - break; - - if (curr_mem_res.end < first_mem_res.start) - continue; - - if (curr_mem_res.start >= first_mem_res.end) - continue; - - log_debug("Overlap found: 0x%llx..0x%llx / 0x%llx..0x%llx\n", - first_mem_res.start, first_mem_res.end, - curr_mem_res.start, curr_mem_res.end); - - return 1; - } + int ret = fdtdec_setup_mem_size_base(); + + if (current_el() == 3 && gd->ram_base == 0x48000000) { + /* + * If this U-Boot runs in EL3, make the bottom 128 MiB + * available for loading of follow up firmware blobs. + */ + gd->ram_base -= 0x8000000; + gd->ram_size += 0x8000000; } - return 0; + return ret; } -static void scrub_duplicate_memory(void *blob) +int dram_init_banksize(void) { - /* - * Scrub duplicate /memory@* node entries here. Some R-Car DTs might - * contain multiple /memory@* nodes, however fdt_fixup_memory_banks() - * either generates single /memory node or updates the first /memory - * node. Any remaining memory nodes are thus potential duplicates. - * - * However, it is not possible to delete all the memory nodes right - * away, since some of those might not be DRAM memory nodes, but some - * sort of other memory. Thus, delete only the memory nodes which are - * in the R-Car3 DBSC ranges. - */ - int mem = 0, first_mem_node = 0; + int bank; - for (;;) { - mem = fdt_node_offset_by_prop_value(blob, mem, - "device_type", "memory", 7); - if (mem < 0) - break; - if (!fdtdec_get_is_enabled(blob, mem)) - continue; + fdtdec_setup_memory_banksize(); - /* First memory node, patched by U-Boot */ - if (!first_mem_node) { - first_mem_node = mem; - continue; - } + if (current_el() != 3) + return 0; - /* Check the remaining nodes and delete duplicates */ - if (!is_mem_overlap(blob, first_mem_node, mem)) + for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { + if (gd->bd->bi_dram[bank].start != 0x48000000) continue; - /* Delete duplicate node, start again */ - fdt_del_node(blob, mem); - first_mem_node = 0; - mem = 0; + /* + * If this U-Boot runs in EL3, make the bottom 128 MiB + * available for loading of follow up firmware blobs. + */ + gd->bd->bi_dram[bank].start -= 0x8000000; + gd->bd->bi_dram[bank].size += 0x8000000; + break; } -} - -static void update_rpc_status(void *blob) -{ - void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]); - int offset, enabled; - - /* - * Check if the DT fragment received from TF-A had its RPC-IF device node - * enabled. - */ - if (fdt_magic(atf_fdt_blob) != FDT_MAGIC) - return; - - offset = fdt_path_offset(atf_fdt_blob, FDT_RPC_PATH); - if (offset < 0) - return; - - enabled = fdtdec_get_is_enabled(atf_fdt_blob, offset); - if (!enabled) - return; - /* - * Find the RPC-IF device node, and enable it if it has a flash subnode. - */ - offset = fdt_path_offset(blob, FDT_RPC_PATH); - if (offset < 0) - return; - - if (fdt_subnode_offset(blob, offset, "flash") < 0) - return; - - fdt_status_okay(blob, offset); + return 0; } -int ft_board_setup(void *blob, struct bd_info *bd) +int __weak board_init(void) { - apply_atf_overlay(blob); - scrub_duplicate_memory(blob); - update_rpc_status(blob); - return 0; } -#endif + #endif |