From: Chris Zhong Date: Mon, 7 Mar 2016 06:51:13 +0000 (+0800) Subject: rockchip: rk3288: correct sdram setting X-Git-Tag: v2016.03~5^2 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=b5788dc;p=u-boot rockchip: rk3288: correct sdram setting The DMC driver in v3.14 kernel[0] get the ddr setting from PMU_SYS_REG2, and it expects uboot to store the value using a same protocol. But now the ddr setting value is different with DMC, so if you enable the DMC, system would crash in kernel. Correct the sdram setting here, according to the requirements of kernel. [0] https://chromium.googlesource.com/chromiumos/third_party/kernel/+/ chromeos-3.14/drivers/clk/rockchip/clk-rk3288-dmc.c Signed-off-by: Chris Zhong Acked-by: Simon Glass --- diff --git a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c index e9e2211c82..17daecaf2b 100644 --- a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c +++ b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c @@ -561,14 +561,14 @@ static void dram_all_config(const struct dram_info *dram, &sdram_params->ch[chan]; sys_reg |= info->row_3_4 << SYS_REG_ROW_3_4_SHIFT(chan); - sys_reg |= chan << SYS_REG_CHINFO_SHIFT(chan); + sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(chan); sys_reg |= (info->rank - 1) << SYS_REG_RANK_SHIFT(chan); sys_reg |= (info->col - 9) << SYS_REG_COL_SHIFT(chan); - sys_reg |= info->bk == 3 ? 1 << SYS_REG_BK_SHIFT(chan) : 0; + sys_reg |= info->bk == 3 ? 0 : 1 << SYS_REG_BK_SHIFT(chan); sys_reg |= (info->cs0_row - 13) << SYS_REG_CS0_ROW_SHIFT(chan); sys_reg |= (info->cs1_row - 13) << SYS_REG_CS1_ROW_SHIFT(chan); - sys_reg |= info->bw << SYS_REG_BW_SHIFT(chan); - sys_reg |= info->dbw << SYS_REG_DBW_SHIFT(chan); + sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(chan); + sys_reg |= (2 >>info->dbw) << SYS_REG_DBW_SHIFT(chan); dram_cfg_rbc(&dram->chan[chan], chan, sdram_params); } @@ -720,13 +720,13 @@ size_t sdram_size_mb(struct rk3288_pmu *pmu) rank = 1 + (sys_reg >> SYS_REG_RANK_SHIFT(ch) & SYS_REG_RANK_MASK); col = 9 + (sys_reg >> SYS_REG_COL_SHIFT(ch) & SYS_REG_COL_MASK); - bk = sys_reg & (1 << SYS_REG_BK_SHIFT(ch)) ? 3 : 0; + bk = 3 - ((sys_reg >> SYS_REG_BK_SHIFT(ch)) & SYS_REG_BK_MASK) ; cs0_row = 13 + (sys_reg >> SYS_REG_CS0_ROW_SHIFT(ch) & SYS_REG_CS0_ROW_MASK); cs1_row = 13 + (sys_reg >> SYS_REG_CS1_ROW_SHIFT(ch) & SYS_REG_CS1_ROW_MASK); - bw = (sys_reg >> SYS_REG_BW_SHIFT(ch)) & - SYS_REG_BW_MASK; + bw = (2 >> (sys_reg >> SYS_REG_BW_SHIFT(ch)) & + SYS_REG_BW_MASK); row_3_4 = sys_reg >> SYS_REG_ROW_3_4_SHIFT(ch) & SYS_REG_ROW_3_4_MASK;