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authorJacky Bai <ping.bai@nxp.com>2019-08-08 12:59:11 +0300
committerStefano Babic <sbabic@denx.de>2019-10-08 17:36:37 +0300
commit69b8e50975c3ca623cf0f0d5bde0c93df76889e9 (patch)
tree235a5d7b2e87873631aac7a7c09647514544e662 /drivers/ddr
parent825ab6b406cba74ae63a1e3373c2f0b62b855f08 (diff)
downloadu-boot-69b8e50975c3ca623cf0f0d5bde0c93df76889e9.tar.xz
ddr: imx8m: Fix the ddr init hang on imx8mq
On, i.MX8MQ, the PLL config must be done when ddrmix isolation is released. So move the dram pll init after iso config done. For other i.MX8M SOC, either init pll before or after isolation is ok. Signed-off-by: Jacky Bai <ping.bai@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers/ddr')
-rw-r--r--drivers/ddr/imx/imx8m/ddr_init.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ddr/imx/imx8m/ddr_init.c b/drivers/ddr/imx/imx8m/ddr_init.c
index 12967583ea..d6e915c9b9 100644
--- a/drivers/ddr/imx/imx8m/ddr_init.c
+++ b/drivers/ddr/imx/imx8m/ddr_init.c
@@ -41,14 +41,14 @@ void ddr_init(struct dram_timing_info *dram_timing)
clock_set_target_val(DRAM_APB_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(4) |
CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV4));
- initial_drate = dram_timing->fsp_msg[0].drate;
- /* default to the frequency point 0 clock */
- ddrphy_init_set_dfi_clk(initial_drate);
-
/* disable iso */
reg32_write(0x303A00EC, 0x0000ffff); /* PGC_CPU_MAPPING */
reg32setbit(0x303A00F8, 5); /* PU_PGC_SW_PUP_REQ */
+ initial_drate = dram_timing->fsp_msg[0].drate;
+ /* default to the frequency point 0 clock */
+ ddrphy_init_set_dfi_clk(initial_drate);
+
/* D-aasert the presetn */
reg32_write(SRC_DDRC_RCR_ADDR, 0x8F000006);