Trust OS decode this info like this: https://github.com/ARM-software/arm-trusted-firmware/blob/master/plat/rockch... We have to set a available value, or else we get error info from Trust OS like this: "ERROR: over or zero region, nr=3145987, max=10"
Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
arch/arm/include/asm/arch-rockchip/sdram_common.h | 4 ++++ arch/arm/mach-rockchip/sdram_common.c | 21 +++++++++++++++++++++ 2 files changed, 25 insertions(+)
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h index fec8586..55c6b81 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_common.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h @@ -55,4 +55,8 @@ size_t rockchip_sdram_size(phys_addr_t reg);
/* Called by U-Boot board_init_r for Rockchip SoCs */ int dram_init(void); + +/* Write ddr param to a known place for trustos */ +int rockchip_setup_ddr_param(struct ram_info *info); + #endif diff --git a/arch/arm/mach-rockchip/sdram_common.c b/arch/arm/mach-rockchip/sdram_common.c index 76dbdc8..3a71f09 100644 --- a/arch/arm/mach-rockchip/sdram_common.c +++ b/arch/arm/mach-rockchip/sdram_common.c @@ -12,6 +12,15 @@ #include <dm/uclass-internal.h>
DECLARE_GLOBAL_DATA_PTR; +struct ddr_param { + u32 count; + u32 reserved; + u64 bank_addr; + u64 bank_size; +}; + +#define PARAM_DRAM_INFO_OFFSET 0x2000000 + size_t rockchip_sdram_size(phys_addr_t reg) { u32 rank, col, bk, cs0_row, cs1_row, bw, row_3_4; @@ -81,3 +90,15 @@ ulong board_get_usable_ram_top(ulong total_size)
return (gd->ram_top > top) ? top : gd->ram_top; } + +int rockchip_setup_ddr_param(struct ram_info *info) +{ + struct ddr_param *dinfo = (struct ddr_param *)CONFIG_SYS_SDRAM_BASE + + PARAM_DRAM_INFO_OFFSET; + + dinfo->count = 1; + dinfo->bank_addr = info->base; + dinfo->bank_size = info->size; + + return 0; +}