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bh=mJ/QcwJ/Vq7adQRv9Y+YNBr9wnaapky8A36wGBnStC0=; b=qJbqQOp2m1JQaOShmVzBiIN3wtL4w8MNgJaQ93tU/sD9RgumcN/LCw0mRGdCBJzYqy P5pMRdYR34DJNpFBwqqP85EXuiuEidc5TUecpl0TvaSTMnMpN3c6eBNbyntEzJbTP3az RfnNAydapDtwaSFVRd4DD+6jM+SrTjs2fDZerWIEZqHMMBnmcl60784QlBZZZtW8b7Xd FvwOrWZhGs31Tfx0xbtIMw7ojeuUBLi/KnUnO/GoWBLArIRtokM2dv4Bt/WjvCoilmMT VVxZ3YWoRdO672nZfLsOumvjIF+fzyasSIU6zTWsF+h/MbUal56NDD1/8hJPaGI1hBha 8Bgg== X-Gm-Message-State: AOAM531PcG48JnYrDQGnupE6ZcOigtRR7m5lSQ+vfQaHJr1cSOBMLg6z 8pk0N5gshHwcowNpmzT/U0AS5qdX7aO24w== X-Google-Smtp-Source: ABdhPJzgtP7F5+wNBeCE4ItBtM8CCKwQj1cDFvjuHXzVcMzuULVv0vshNILRR03LNeji5Q1DRPqNxA== X-Received: by 2002:a2e:b0e4:: with SMTP id h4mr2697083ljl.119.1603879105328; Wed, 28 Oct 2020 02:58:25 -0700 (PDT) Received: from localhost ([109.108.76.111]) by smtp.gmail.com with ESMTPSA id c9sm142310ljd.26.2020.10.28.02.58.24 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 28 Oct 2020 02:58:24 -0700 (PDT) From: Igor Opaniuk To: u-boot@lists.denx.de Cc: Marcel Ziswiler , Peng Fan , Oleksandr Suvorov , Philippe Schenker , Max Krummenacher , Stefano Babic , Igor Opaniuk Subject: [PATCH v1 5/9] verdin-imx8mm: spl: switch to pca9450 pmic Date: Wed, 28 Oct 2020 11:58:12 +0200 Message-Id: <20201028095816.23906-5-igor.opaniuk@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201028095816.23906-1-igor.opaniuk@gmail.com> References: <20201028095816.23906-1-igor.opaniuk@gmail.com> X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Max Krummenacher 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 Signed-off-by: Igor Opaniuk Acked-by: Marcel Ziswiler Reviewed-by: Oleksandr Suvorov --- 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 #include #include +#include #include +#include #include #include 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