From: YouMin Chen <[email protected]> This patch add support for additional bank info used by LPDDR5.
Signed-off-by: YouMin Chen <[email protected]> Signed-off-by: Kever Yang <[email protected]> --- arch/arm/mach-rockchip/sdram.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-rockchip/sdram.c b/arch/arm/mach-rockchip/sdram.c index 99ecbdc3412..d65c48bf515 100644 --- a/arch/arm/mach-rockchip/sdram.c +++ b/arch/arm/mach-rockchip/sdram.c @@ -110,6 +110,13 @@ size_t rockchip_sdram_size(phys_addr_t reg) SYS_REG_COL_MASK); cs1_col = cs0_col; bk = 3 - ((sys_reg2 >> SYS_REG_BK_SHIFT(ch)) & SYS_REG_BK_MASK); + /* + * SYS_REG_BK(Version 3): + * 1) Except LPDDR5 0:8bank(bk=3), 1:4bank(bk=2) + * 2) LPDDR5 0:8bank(bk=3), 1:16bank(bk=4) + */ + if (version == 3 && dram_type == LPDDR5 && bk == 2) + bk = 4; if (version >= 2) { cs1_col = 9 + (sys_reg3 >> SYS_REG_CS1_COL_SHIFT(ch) & SYS_REG_CS1_COL_MASK); -- 2.25.1
