The Odroid C2 has two GiB of memory with two reserved regions. reg = <0x0 0x0 0x0 0x1000000>; reg = <0x0 0x10000000 0x0 0x200000>;
Patch bfcef28ae4cf (arm: add initial support for Amlogic Meson and ODROID-C2) provided function dram_init_banksize to reserve the first 16 MiB of RAM for firmware in function dram_init_banksize in arch/arm/mach-meson/board.c and defined CONFIG_NR_DRAM_BANKS = 1. With this patch dram_init_banksize is changed to additionally reserve the 2MiB region for the ARM Trusted Firmware (BL31). CONFIG_NR_DRAM_BANKS is set to 2. Cc: Andreas Färber <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]> --- v2: Do not change the dtb but the board file as suggested by Andreas Färber. --- arch/arm/mach-meson/board.c | 8 +++++--- include/configs/meson-gxbb-common.h | 2 +- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-meson/board.c b/arch/arm/mach-meson/board.c index 273dbeb020..e89c6aace9 100644 --- a/arch/arm/mach-meson/board.c +++ b/arch/arm/mach-meson/board.c @@ -37,9 +37,11 @@ int dram_init(void) int dram_init_banksize(void) { /* Reserve first 16 MiB of RAM for firmware */ - gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE + (16 * 1024 * 1024); - gd->bd->bi_dram[0].size = gd->ram_size - (16 * 1024 * 1024); - + gd->bd->bi_dram[0].start = 0x1000000; + gd->bd->bi_dram[0].size = 0xf000000; + /* Reserve 2 MiB for ARM Trusted Firmware (BL31) */ + gd->bd->bi_dram[1].start = 0x10000000; + gd->bd->bi_dram[1].size = gd->ram_size - 0x10200000; return 0; } diff --git a/include/configs/meson-gxbb-common.h b/include/configs/meson-gxbb-common.h index 89e3807a14..ed55f441a4 100644 --- a/include/configs/meson-gxbb-common.h +++ b/include/configs/meson-gxbb-common.h @@ -10,7 +10,7 @@ #define CONFIG_CPU_ARMV8 #define CONFIG_REMAKE_ELF -#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_NR_DRAM_BANKS 2 #define CONFIG_ENV_IS_NOWHERE 1 #define CONFIG_ENV_SIZE 0x2000 #define CONFIG_SYS_MAXARGS 32 -- 2.11.0 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
