board: xiaomi: mocha: add Xiaomi Mi Pad A0101 support
The Mi Pad is a tablet computer based on Nvidia Tegra K1 SoC which
originally ran the Android operating system. The Mi Pad has a 7.9" IPS
display with 1536 x 2048 (324 ppi) resolution. 2 GB of RAM and 16/64 GB of
internal memory that can be supplemented with a microSDXC card giving up to
128 GB of additional storage.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/board/xiaomi/mocha/mocha-spl.c b/board/xiaomi/mocha/mocha-spl.c
new file mode 100644
index 0000000..5fb11df
--- /dev/null
+++ b/board/xiaomi/mocha/mocha-spl.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Mocha SPL stage configuration
+ *
+ * (C) Copyright 2024
+ * Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/tegra_i2c.h>
+#include <linux/delay.h>
+
+#define TPS65913_I2C_ADDR (0x58 << 1)
+
+#define TPS65913_SMPS12_CTRL 0x20
+#define TPS65913_SMPS12_VOLTAGE 0x23
+#define TPS65913_SMPS45_CTRL 0x28
+#define TPS65913_SMPS45_VOLTAGE 0x2B
+#define TPS65913_SMPS7_CTRL 0x30
+#define TPS65913_SMPS7_VOLTAGE 0x33
+
+#define TPS65913_SMPS12_CTRL_DATA (0x5100 | TPS65913_SMPS12_CTRL)
+#define TPS65913_SMPS12_VOLTAGE_DATA (0x3800 | TPS65913_SMPS12_VOLTAGE)
+#define TPS65913_SMPS45_CTRL_DATA (0x5100 | TPS65913_SMPS45_CTRL)
+#define TPS65913_SMPS45_VOLTAGE_DATA (0x3800 | TPS65913_SMPS45_VOLTAGE)
+#define TPS65913_SMPS7_CTRL_DATA (0x5100 | TPS65913_SMPS7_CTRL)
+#define TPS65913_SMPS7_VOLTAGE_DATA (0x4700 | TPS65913_SMPS7_VOLTAGE)
+
+void pmic_enable_cpu_vdd(void)
+{
+ /* Set CORE VDD to 1.150V. */
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS7_VOLTAGE_DATA);
+ udelay(1000);
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS7_CTRL_DATA);
+
+ udelay(1000);
+
+ /* Set CPU VDD to 1.0V. */
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_VOLTAGE_DATA);
+ udelay(1000);
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_CTRL_DATA);
+ udelay(10 * 1000);
+
+ /* Set GPU VDD to 1.0V. */
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_VOLTAGE_DATA);
+ udelay(1000);
+ tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_CTRL_DATA);
+ udelay(10 * 1000);
+}