board: nvidia: tegratab: add Nvidia Tegra Note 7 support

The Tegra Note 7 is a mini tablet computer and the second Tegra 4
based mobile device designed by Nvidia that runs the Android operating
system. The Tegra Note has a 7" IPS display with 1280 x 800 (217 ppi)
resolution. The 1 GB of RAM and 16 GB of internal memory can be
supplemented with a microSDXC card giving up to 64 GB of additional
storage.

Signed-off-by: Svyatoslav Ryhel <[email protected]>

6 files changed, 147 insertions, 0 deletions

diff --git a/board/nvidia/tegratab/Kconfig b/board/nvidia/tegratab/Kconfig
new file mode 100644
index 00000000000..8bd7cfd87b8
--- /dev/null
+++ b/board/nvidia/tegratab/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_TEGRATAB
+
+config SYS_BOARD
+	default "tegratab"
+
+config SYS_VENDOR
+	default "nvidia"
+
+config SYS_CONFIG_NAME
+	default "tegratab"
+
+config TEGRA_BOARD_STRING
+	string "Default Tegra board name"
+	default "NVIDIA TegraTab"
+
+endif
diff --git a/board/nvidia/tegratab/MAINTAINERS b/board/nvidia/tegratab/MAINTAINERS
new file mode 100644
index 00000000000..bfd9eae8658
--- /dev/null
+++ b/board/nvidia/tegratab/MAINTAINERS
@@ -0,0 +1,8 @@
+TEGRATAB BOARD
+M:	Svyatoslav Ryhel <[email protected]>
+S:	Maintained
+F:	arch/arm/dts/tegra114-nvidia-tegratab.dts
+F:	board/nvidia/tegratab/
+F:	configs/tegratab_defconfig
+F:	doc/board/nvidia/tegratab.rst
+F:	include/configs/tegratab.h
diff --git a/board/nvidia/tegratab/Makefile b/board/nvidia/tegratab/Makefile
new file mode 100644
index 00000000000..183a0ba0319
--- /dev/null
+++ b/board/nvidia/tegratab/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
+#
+# Copyright (c) 2023, Svyatoslav Ryhel <[email protected]>
+#
+
+obj-$(CONFIG_XPL_BUILD) += tegratab-spl.o
+
+obj-y += tegratab.o
diff --git a/board/nvidia/tegratab/tegratab-spl.c b/board/nvidia/tegratab/tegratab-spl.c
new file mode 100644
index 00000000000..423b3070910
--- /dev/null
+++ b/board/nvidia/tegratab/tegratab-spl.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  TegraTab SPL stage configuration
+ *
+ *  (C) Copyright 2010-2013
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ *  (C) Copyright 2023
+ *  Svyatoslav Ryhel <[email protected]>
+ */
+
+#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_SMPS12_CTRL_DATA	(0x5100 | TPS65913_SMPS12_CTRL)
+#define TPS65913_SMPS12_VOLTAGE_DATA	(0x3900 | TPS65913_SMPS12_VOLTAGE)
+#define TPS65913_SMPS45_CTRL_DATA	(0x5100 | TPS65913_SMPS45_CTRL)
+#define TPS65913_SMPS45_VOLTAGE_DATA	(0x4c00 | TPS65913_SMPS45_VOLTAGE)
+
+void pmic_enable_cpu_vdd(void)
+{
+	/* Set CORE VDD to 1.200V. */
+	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(1000);
+
+	/* Set CPU VDD to 1.0125V. */
+	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);
+}
diff --git a/board/nvidia/tegratab/tegratab.c b/board/nvidia/tegratab/tegratab.c
new file mode 100644
index 00000000000..775e5be9cfa
--- /dev/null
+++ b/board/nvidia/tegratab/tegratab.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  (C) Copyright 2010-2013
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ *  (C) Copyright 2023
+ *  Svyatoslav Ryhel <[email protected]>
+ */
+
+#include <dm.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <log.h>
+
+#ifdef CONFIG_MMC_SDHCI_TEGRA
+
+#define TPS65913_I2C_ADDRESS			0x58
+#define TPS65913_PRIMARY_SECONDARY_PAD2		0xfb
+#define   GPIO_4				BIT(0)
+#define TPS65913_PRIMARY_SECONDARY_PAD3		0xfe
+#define   DVFS2					BIT(1)
+#define   DVFS1					BIT(0)
+
+/* We are using this function only till palmas pinctrl driver is available */
+void pin_mux_mmc(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = i2c_get_chip_for_busnum(0, TPS65913_I2C_ADDRESS, 1, &dev);
+	if (ret) {
+		log_debug("%s: cannot find PMIC I2C chip\n", __func__);
+		return;
+	}
+
+	/* GPIO4 function has to be GPIO */
+	dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD2,
+			  GPIO_4, 0);
+
+	/* DVFS1 is enabled, DVFS2 is disabled */
+	dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD3,
+			  DVFS2 | DVFS1, DVFS1);
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	/* Remove TrustZone nodes and memory reserves */
+	fdt_del_node_and_alias(blob, "/firmware");
+	fdt_del_node_and_alias(blob, "/reserved-memory/trustzone@bfe00000");
+	fdt_del_node_and_alias(blob, "/reserved-memory/bootloader-firmware@b7e00000");
+
+	return 0;
+}
+#endif
diff --git a/board/nvidia/tegratab/tegratab.env b/board/nvidia/tegratab/tegratab.env
new file mode 100644
index 00000000000..b2ba4f4354c
--- /dev/null
+++ b/board/nvidia/tegratab/tegratab.env
@@ -0,0 +1,15 @@
+button_cmd_0_name=Volume Down
+button_cmd_0=bootmenu
+button_cmd_1_name=Hall Sensor
+button_cmd_1=poweroff
+
+fastboot_partition_alias_boot=CAC
+fastboot_partition_alias_root=UDA
+
+bootmenu_0=mount internal storage=usb start && ums 0 mmc 0:c; bootmenu
+bootmenu_1=mount external storage=usb start && ums 0 mmc 1; bootmenu
+bootmenu_2=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0; bootmenu
+bootmenu_3=reboot RCM=enterrcm
+bootmenu_4=reboot=reset
+bootmenu_5=power off=poweroff
+bootmenu_delay=-1