1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/boards/tqma93xx/board.c b/arch/arm/boards/tqma93xx/board.c
new file mode 100644
index 0000000000..b181784079
--- /dev/null
+++ b/arch/arm/boards/tqma93xx/board.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define pr_fmt(fmt) "TQMa93xx: " fmt
+
+#include <common.h>
+#include <gpio.h>
+#include <init.h>
+#include <i2c/i2c.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <environment.h>
+#include <mfd/pca9450.h>
+#include <deep-probe.h>
+#include <mach/imx/bbu.h>
+
+static void tqma93xx_init_pmic(struct regmap *map)
+{
+	/* BUCKxOUT_DVS0/1 control BUCK123 output */
+	regmap_write(map, PCA9450_BUCK123_DVS, 0x29);
+	/* enable DVS control through PMIC_STBY_REQ */
+	regmap_write(map, PCA9450_BUCK1CTRL, 0x59);
+	/* 0.9 V */
+	regmap_write(map, PCA9450_BUCK1OUT_DVS0, 0x18);
+	regmap_write(map, PCA9450_BUCK3OUT_DVS0, 0x18);
+	/* set standby voltage to 0.65v */
+	regmap_write(map, PCA9450_BUCK1OUT_DVS1, 0x4);
+
+	/* I2C_LT_EN*/
+	regmap_write(map, 0xa, 0x3);
+
+	/* set WDOG_B_CFG to cold reset */
+	regmap_write(map, PCA9450_RESET_CTRL, 0xA1);
+}
+
+static int tqma93xx_probe(struct device *dev)
+{
+	pca9450_register_init_callback(tqma93xx_init_pmic);
+
+	imx9_bbu_internal_mmcboot_register_handler("eMMC", "/dev/mmc0", 0);
+
+	return 0;
+}
+
+static const struct of_device_id tqma93xx_of_match[] = {
+        {
+                .compatible = "tq,imx93-tqma9352",
+        },
+        { /* sentinel */ },
+};
+
+static struct driver tqma93xx_board_driver = {
+        .name = "board-tqma93xx",
+        .probe = tqma93xx_probe,
+        .of_compatible = tqma93xx_of_match,
+};
+coredevice_platform_driver(tqma93xx_board_driver);
+
+BAREBOX_DEEP_PROBE_ENABLE(tqma93xx_of_match);