On Thu, Oct 29, 2020 at 4:44 PM Marcel Ziswiler marcel.ziswiler@toradex.com wrote:
On Wed, 2020-10-28 at 11:58 +0200, Igor Opaniuk wrote:
From: Max Krummenacher max.krummenacher@toradex.com
V1.1A HW switched the PMIC from BD71837 to PCA9450.
- Disable combined DVS in PCA9450_BUCK123_DVS.
- Increase DDR Voltage to 0.95V as we use a 1.5GHz RAM.
- Configure WDOG_B behaviour.
Signed-off-by: Max Krummenacher max.krummenacher@toradex.com Signed-off-by: Igor Opaniuk igor.opaniuk@toradex.com
Acked-by: Marcel Ziswiler marcel.ziswiler@toradex.com
Reviewed-by: Oleksandr Suvorov oleksandr.suvorov@toradex.com
board/toradex/verdin-imx8mm/spl.c | 42 +++++++++++++++---------------- configs/verdin-imx8mm_defconfig | 2 +- 2 files changed, 21 insertions(+), 23 deletions(-)
diff --git a/board/toradex/verdin-imx8mm/spl.c b/board/toradex/verdin-imx8mm/spl.c index cc78c5666b..9562cdeb35 100644 --- a/board/toradex/verdin-imx8mm/spl.c +++ b/board/toradex/verdin-imx8mm/spl.c @@ -21,12 +21,16 @@ #include <dm/uclass.h> #include <dm/uclass-internal.h> #include <hang.h> +#include <i2c.h> #include <power/bd71837.h> +#include <power/pca9450.h> #include <power/pmic.h> #include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
+#define I2C_PMIC_BUS_ID 1
int spl_board_boot_device(enum boot_device boot_dev_spl) { switch (boot_dev_spl) { @@ -101,33 +105,27 @@ int power_init_board(void) struct udevice *dev; int ret;
ret = pmic_get("pmic@4b", &dev);if (ret == -ENODEV) {puts("No pmic\n");return 0;}if (ret != 0)return ret;
if (IS_ENABLED(CONFIG_SPL_DM_PMIC_PCA9450)) {ret = pmic_get("pmic", &dev);if (ret == -ENODEV) {puts("No pmic found\n");return ret;}
/* decrease RESET key long push time from the default 10s to 10ms */pmic_reg_write(dev, BD718XX_PWRONCONFIG1, 0x0);
if (ret != 0)return ret;
/* unlock the PMIC regs */pmic_reg_write(dev, BD718XX_REGLOCK, 0x1);
/* BUCKxOUT_DVS0/1 control BUCK123 output, clear PRESET_EN */pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
/* increase VDD_SOC to typical value 0.85v before first DRAM access */pmic_reg_write(dev, BD718XX_BUCK1_VOLT_RUN, 0x0f);
/* increase VDD_DRAM to 0.975v for 1.5Ghz DDR */pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1c);
/* increase VDD_DRAM to 0.975v for 3Ghz DDR */pmic_reg_write(dev, BD718XX_1ST_NODVS_BUCK_VOLT, 0x83);
/* set WDOG_B_CFG to cold reset */pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);-#ifndef CONFIG_IMX8M_LPDDR4
/* increase NVCC_DRAM_1V2 to 1.2v for DDR4 */pmic_reg_write(dev, BD718XX_4TH_NODVS_BUCK_VOLT, 0x28);-#endif
/* lock the PMIC regs */pmic_reg_write(dev, BD718XX_REGLOCK, 0x11);
return 0;} return 0;} diff --git a/configs/verdin-imx8mm_defconfig b/configs/verdin-imx8mm_defconfig index 7ebfd6792f..d856e3a318 100644 --- a/configs/verdin-imx8mm_defconfig +++ b/configs/verdin-imx8mm_defconfig @@ -91,7 +91,7 @@ CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX8M=y CONFIG_DM_PMIC=y -CONFIG_SPL_DM_PMIC_BD71837=y +CONFIG_SPL_DM_PMIC_PCA9450=y CONFIG_DM_PMIC_PFUZE100=y CONFIG_DM_REGULATOR=y CONFIG_DM_REGULATOR_FIXED=y
-- Best regards Oleksandr Suvorov
Toradex AG Ebenaustrasse 10 | 6048 Horw | Switzerland | T: +41 41 500 48 00