sdram_print_dram_type() and sdram_detect_dbw() only handled types up to LPDDR4. Adding RK3576 with LPDDR5 exposes two gaps:
1. sdram_print_dram_type(): LPDDR4X (8) and LPDDR5 (9) fell through to "Unknown Device". Add the missing cases. 2. sdram_detect_dbw(): the fixed-dbw=1 branch covered DDR3 and LPDDR4 but not LPDDR4X or LPDDR5 (both use x16 dies → dbw=1). Extend the condition to include the new types. LPDDR4X and LPDDR5 enum values are already defined in sdram.h as 8 and 9 respectively. Signed-off-by: Johan Axelsson <[email protected]> --- drivers/ram/rockchip/sdram_common.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/ram/rockchip/sdram_common.c b/drivers/ram/rockchip/sdram_common.c index b7a8fce607c..777e1044b40 100644 --- a/drivers/ram/rockchip/sdram_common.c +++ b/drivers/ram/rockchip/sdram_common.c @@ -29,6 +29,12 @@ void sdram_print_dram_type(unsigned char dramtype) case LPDDR4: printascii("LPDDR4"); break; + case LPDDR4X: + printascii("LPDDR4X"); + break; + case LPDDR5: + printascii("LPDDR5"); + break; default: printascii("Unknown Device"); break; @@ -285,13 +291,14 @@ int sdram_detect_bg(struct sdram_cap_info *cap_info, return 0; } -/* detect dbw for ddr3,lpddr2,lpddr3,lpddr4 */ +/* detect dbw for ddr3,lpddr2,lpddr3,lpddr4,lpddr4x,lpddr5 */ int sdram_detect_dbw(struct sdram_cap_info *cap_info, u32 dram_type) { u32 row, col, bk, bw, cs_cap, cs; u32 die_bw_0 = 0, die_bw_1 = 0; - if (dram_type == DDR3 || dram_type == LPDDR4) { + if (dram_type == DDR3 || dram_type == LPDDR4 || + dram_type == LPDDR4X || dram_type == LPDDR5) { cap_info->dbw = 1; } else if (dram_type == LPDDR3 || dram_type == LPDDR2) { row = cap_info->cs0_row; -- 2.45.1.windows.1
