board: tegra30: switch to updated pre-dm i2c write
Configure PMIC voltages for early stages using updated
early i2c write.
Tested-by: Thierry Reding <treding@nvidia.com> # Beaver T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom <twarren@nvidia.com>
diff --git a/board/nvidia/cardhu/Makefile b/board/nvidia/cardhu/Makefile
index 9597105..6f480cd 100644
--- a/board/nvidia/cardhu/Makefile
+++ b/board/nvidia/cardhu/Makefile
@@ -3,4 +3,6 @@
# (C) Copyright 2010-2012
# NVIDIA Corporation <www.nvidia.com>
-obj-y := cardhu.o
+obj-$(CONFIG_SPL_BUILD) += cardhu-spl.o
+
+obj-y += cardhu.o
diff --git a/board/nvidia/cardhu/cardhu-spl.c b/board/nvidia/cardhu/cardhu-spl.c
new file mode 100644
index 0000000..de2fa30
--- /dev/null
+++ b/board/nvidia/cardhu/cardhu-spl.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * (C) Copyright 2010-2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * (C) Copyright 2021
+ * Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <common.h>
+#include <asm/arch-tegra/tegra_i2c.h>
+#include <linux/delay.h>
+
+/* I2C addr is in 8 bit */
+#define TPS65911_I2C_ADDR 0x5A
+#define TPS65911_VDDCTRL_OP_REG 0x28
+#define TPS65911_VDDCTRL_SR_REG 0x27
+#define TPS65911_VDDCTRL_OP_DATA (0x2400 | TPS65911_VDDCTRL_OP_REG)
+#define TPS65911_VDDCTRL_SR_DATA (0x0100 | TPS65911_VDDCTRL_SR_REG)
+
+#define TPS62361B_I2C_ADDR 0xC0
+#define TPS62361B_SET3_REG 0x03
+#define TPS62361B_SET3_DATA (0x4600 | TPS62361B_SET3_REG)
+
+void pmic_enable_cpu_vdd(void)
+{
+ /* Set VDD_CORE to 1.200V. */
+ tegra_i2c_ll_write(TPS62361B_I2C_ADDR,
+ TPS62361B_SET3_DATA);
+
+ udelay(1000);
+
+ /*
+ * Bring up CPU VDD via the TPS65911x PMIC on the DVC I2C bus.
+ * First set VDD to 1.0125V, then enable the VDD regulator.
+ */
+ tegra_i2c_ll_write(TPS65911_I2C_ADDR,
+ TPS65911_VDDCTRL_OP_DATA);
+ udelay(1000);
+ tegra_i2c_ll_write(TPS65911_I2C_ADDR,
+ TPS65911_VDDCTRL_SR_DATA);
+ udelay(10 * 1000);
+}