The base of DRAM will be changed for the next generation SoC. To support it along with existing SoCs in the single defconfig, set 'loadaddr' at boot-time by adding the offset to the DRAM base.
CONFIG_SYS_LOAD_ADDR is still hard-coded for compilation, but the value from environment variable 'loadaddr' should be used.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---
arch/arm/mach-uniphier/board_late_init.c | 32 ++++++++++++++++++++++++ include/configs/uniphier.h | 4 +-- 2 files changed, 34 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-uniphier/board_late_init.c b/arch/arm/mach-uniphier/board_late_init.c index 37b375c01984..dbd1f17e832e 100644 --- a/arch/arm/mach-uniphier/board_late_init.c +++ b/arch/arm/mach-uniphier/board_late_init.c @@ -66,6 +66,36 @@ fail: pr_warn(""fdt_file" environment variable was not set correctly\n"); }
+static void uniphier_set_env_addr(const char *env, const char *offset_env) +{ + unsigned long offset = 0; + const char *str; + char *end; + int ret; + + if (env_get(env)) + return; /* do nothing if it is already set */ + + if (offset_env) { + str = env_get(offset_env); + if (!str) + goto fail; + + offset = simple_strtoul(str, &end, 16); + if (*end) + goto fail; + } + + ret = env_set_hex(env, gd->ram_base + offset); + if (ret) + goto fail; + + return; + +fail: + pr_warn(""%s" environment variable was not set correctly\n", env); +} + int board_late_init(void) { puts("MODE: "); @@ -105,5 +135,7 @@ int board_late_init(void)
uniphier_set_env_fdt_file();
+ uniphier_set_env_addr("loadaddr", "loadaddr_offset"); + return 0; } diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index 46d576d54aa1..6d3d9b318881 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -98,8 +98,7 @@ #define CONFIG_GATEWAYIP 192.168.11.1 #define CONFIG_NETMASK 255.255.255.0
-#define CONFIG_LOADADDR 0x85000000 -#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR +#define CONFIG_SYS_LOAD_ADDR 0x85000000 #define CONFIG_SYS_BOOTM_LEN (32 << 20)
#if defined(CONFIG_ARM64) @@ -158,6 +157,7 @@ #define CONFIG_EXTRA_ENV_SETTINGS \ "netdev=eth0\0" \ "initrd_high=0xffffffffffffffff\0" \ + "loadaddr_offset=0x05000000\0" \ "script=boot.scr\0" \ "scriptaddr=0x85000000\0" \ "nor_base=0x42000000\0" \