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authorTom Rini <trini@konsulko.com>2020-01-07 16:45:43 +0300
committerTom Rini <trini@konsulko.com>2020-01-07 16:45:43 +0300
commitd8a3f5259a36e76d1de127f65714c40918e8ee4c (patch)
tree6a4ca1942f084a11465ad990433306c2dfdc7b55 /drivers/ddr
parentac0f978afd4b8d388b0b194bc6e5982efc383a59 (diff)
parentb6e7ef4bf71bc0927dea35fdec0a653a82ae57a7 (diff)
downloadu-boot-d8a3f5259a36e76d1de127f65714c40918e8ee4c.tar.xz
Merge tag 'u-boot-imx-20200107' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx
New for 2020.04 --------------- - New boards Embedded Artists COM board Xea Board - Switch to DM: Aristainetos boards Toradex colibri (DM_ETH) iCubox GE bx50v3 mx7dsabre (DM_ETH) cx9020 - New features: Bootaux with elf files Default SYS_THUMB_BUILD for i.MX6/7 - Fixes: DHCOM i.MX6 PDK Engicam i.MX8M tools (imx8m_image) Travis: https://travis-ci.org/sbabic/u-boot-imx/builds/633679664
Diffstat (limited to 'drivers/ddr')
-rw-r--r--drivers/ddr/imx/imx8m/ddr_init.c11
-rw-r--r--drivers/ddr/imx/imx8m/ddrphy_train.c9
-rw-r--r--drivers/ddr/imx/imx8m/ddrphy_utils.c8
3 files changed, 20 insertions, 8 deletions
diff --git a/drivers/ddr/imx/imx8m/ddr_init.c b/drivers/ddr/imx/imx8m/ddr_init.c
index 21af66e4e7..af8c1427d2 100644
--- a/drivers/ddr/imx/imx8m/ddr_init.c
+++ b/drivers/ddr/imx/imx8m/ddr_init.c
@@ -20,9 +20,10 @@ void ddr_cfg_umctl2(struct dram_cfg_param *ddrc_cfg, int num)
}
}
-void ddr_init(struct dram_timing_info *dram_timing)
+int ddr_init(struct dram_timing_info *dram_timing)
{
unsigned int tmp, initial_drate, target_freq;
+ int ret;
debug("DDRINFO: start DRAM init\n");
@@ -98,7 +99,11 @@ void ddr_init(struct dram_timing_info *dram_timing)
* accessing relevant PUB registers
*/
debug("DDRINFO:ddrphy config start\n");
- ddr_cfg_phy(dram_timing);
+
+ ret = ddr_cfg_phy(dram_timing);
+ if (ret)
+ return ret;
+
debug("DDRINFO: ddrphy config done\n");
/*
@@ -165,4 +170,6 @@ void ddr_init(struct dram_timing_info *dram_timing)
/* save the dram timing config into memory */
dram_config_save(dram_timing, CONFIG_SAVED_DRAM_TIMING_BASE);
+
+ return 0;
}
diff --git a/drivers/ddr/imx/imx8m/ddrphy_train.c b/drivers/ddr/imx/imx8m/ddrphy_train.c
index 18f7ed7fea..306af82504 100644
--- a/drivers/ddr/imx/imx8m/ddrphy_train.c
+++ b/drivers/ddr/imx/imx8m/ddrphy_train.c
@@ -8,13 +8,14 @@
#include <asm/arch/ddr.h>
#include <asm/arch/lpddr4_define.h>
-void ddr_cfg_phy(struct dram_timing_info *dram_timing)
+int ddr_cfg_phy(struct dram_timing_info *dram_timing)
{
struct dram_cfg_param *dram_cfg;
struct dram_fsp_msg *fsp_msg;
unsigned int num;
int i = 0;
int j = 0;
+ int ret;
/* initialize PHY configuration */
dram_cfg = dram_timing->ddrphy_cfg;
@@ -60,7 +61,9 @@ void ddr_cfg_phy(struct dram_timing_info *dram_timing)
dwc_ddrphy_apb_wr(0xd0099, 0x0);
/* Wait for the training firmware to complete */
- wait_ddrphy_training_complete();
+ ret = wait_ddrphy_training_complete();
+ if (ret)
+ return ret;
/* Halt the microcontroller. */
dwc_ddrphy_apb_wr(0xd0099, 0x1);
@@ -83,4 +86,6 @@ void ddr_cfg_phy(struct dram_timing_info *dram_timing)
/* save the ddr PHY trained CSR in memory for low power use */
ddrphy_trained_csr_save(ddrphy_trained_csr, ddrphy_trained_csr_num);
+
+ return 0;
}
diff --git a/drivers/ddr/imx/imx8m/ddrphy_utils.c b/drivers/ddr/imx/imx8m/ddrphy_utils.c
index e60503309e..863fb43897 100644
--- a/drivers/ddr/imx/imx8m/ddrphy_utils.c
+++ b/drivers/ddr/imx/imx8m/ddrphy_utils.c
@@ -84,7 +84,7 @@ static inline void decode_streaming_message(void)
debug("\n");
}
-void wait_ddrphy_training_complete(void)
+int wait_ddrphy_training_complete(void)
{
unsigned int mail;
@@ -95,10 +95,10 @@ void wait_ddrphy_training_complete(void)
decode_streaming_message();
} else if (mail == 0x07) {
debug("Training PASS\n");
- break;
+ return 0;
} else if (mail == 0xff) {
- printf("Training FAILED\n");
- break;
+ debug("Training FAILED\n");
+ return -1;
}
}
}