diff options
| author | YouMin Chen <[email protected]> | 2023-12-12 15:56:41 +0800 |
|---|---|---|
| committer | Kever Yang <[email protected]> | 2024-02-04 18:01:03 +0800 |
| commit | 875bc40a00f92cd9b5882eaed57a5a3c361328d2 (patch) | |
| tree | 0f5e5e94e19bde39776c6e85df31421641d563f7 | |
| parent | 819abd0a1eaff9a921f5b917e152b85dab302e33 (diff) | |
rockchip: sdram: fix LPDDR5 bank info for sys_reg version 3
This patch add support for additional bank info used by LPDDR5.
Series-version: 2
Signed-off-by: YouMin Chen <[email protected]>
Signed-off-by: Kever Yang <[email protected]>
| -rw-r--r-- | arch/arm/mach-rockchip/sdram.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/mach-rockchip/sdram.c b/arch/arm/mach-rockchip/sdram.c index 99ecbdc3412..0d9a0aef6f5 100644 --- a/arch/arm/mach-rockchip/sdram.c +++ b/arch/arm/mach-rockchip/sdram.c @@ -109,7 +109,14 @@ size_t rockchip_sdram_size(phys_addr_t reg) cs0_col = 9 + (sys_reg2 >> SYS_REG_COL_SHIFT(ch) & SYS_REG_COL_MASK); cs1_col = cs0_col; - bk = 3 - ((sys_reg2 >> SYS_REG_BK_SHIFT(ch)) & SYS_REG_BK_MASK); + if (dram_type == LPDDR5) + /* LPDDR5: 0:8bank(bk=3), 1:16bank(bk=4) */ + bk = 3 + ((sys_reg2 >> SYS_REG_BK_SHIFT(ch)) & + SYS_REG_BK_MASK); + else + /* Other: 0:8bank(bk=3), 1:4bank(bk=2) */ + bk = 3 - ((sys_reg2 >> SYS_REG_BK_SHIFT(ch)) & + SYS_REG_BK_MASK); if (version >= 2) { cs1_col = 9 + (sys_reg3 >> SYS_REG_CS1_COL_SHIFT(ch) & SYS_REG_CS1_COL_MASK); |