From: Igor Opaniuk <igor.opaniuk@gmail.com>
To: u-boot@lists.denx.de
Subject: [PATCH v1 5/9] verdin-imx8mm: spl: switch to pca9450 pmic
Date: Wed, 28 Oct 2020 11:58:12 +0200 [thread overview]
Message-ID: <20201028095816.23906-5-igor.opaniuk@gmail.com> (raw)
In-Reply-To: <20201028095816.23906-1-igor.opaniuk@gmail.com>
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>
---
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 at 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
--
2.17.1
next prev parent reply other threads:[~2020-10-28 9:58 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-28 9:58 [PATCH v1 1/9] toradex: tdx-cfg-clock: add new i.mx 8m mini/plus skus Igor Opaniuk
2020-10-28 9:58 ` [PATCH v1 2/9] pca9450a: fix i2c address Igor Opaniuk
2020-10-28 21:49 ` Jaehoon Chung
2020-12-08 8:00 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 3/9] power: pmic: add SPL_DM_PMIC_PCA9450 symbol to Kconfig Igor Opaniuk
2020-10-28 21:49 ` Jaehoon Chung
2020-12-08 7:58 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 4/9] ARM: dts: imx8mm-verdin: follow changed pmic Igor Opaniuk
2020-10-29 14:43 ` Marcel Ziswiler
2020-10-29 16:19 ` Oleksandr Suvorov
2020-12-08 7:59 ` sbabic at denx.de
2020-10-28 9:58 ` Igor Opaniuk [this message]
2020-10-29 14:44 ` [PATCH v1 5/9] verdin-imx8mm: spl: switch to pca9450 pmic Marcel Ziswiler
2020-10-29 16:27 ` Oleksandr Suvorov
2020-12-08 7:59 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 6/9] verdin-imx8mm: implement hardware version detection Igor Opaniuk
2020-10-29 14:48 ` Marcel Ziswiler
2020-12-08 7:58 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 7/9] verdin-imx8mm: spl: enable pca9450 i2c level translator Igor Opaniuk
2020-10-29 14:49 ` Marcel Ziswiler
2020-10-29 16:16 ` Oleksandr Suvorov
2020-12-08 7:59 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 8/9] toradex: tdx-cfg-clock: fix i.mx 8m mini interactive Igor Opaniuk
2020-10-29 16:32 ` Oleksandr Suvorov
2020-12-08 7:59 ` sbabic at denx.de
2020-10-28 9:58 ` [PATCH v1 9/9] verdin-imx8mm: automatic ram size detection Igor Opaniuk
2020-10-29 16:15 ` Oleksandr Suvorov
2020-12-08 7:58 ` sbabic at denx.de
2020-10-29 14:52 ` [PATCH v1 1/9] toradex: tdx-cfg-clock: add new i.mx 8m mini/plus skus Marcel Ziswiler
2020-12-08 8:00 ` sbabic at denx.de
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