board: acer: picasso: add Acer Iconia Tab A500 support

The Acer Iconia A500 is a tablet computer designed, developed and
marketed by Acer Inc. It is powered by 1 GHz Nvidia Tegra 2 processor
and 1GB DDR2 RAM. The A500 is sold with 64 GB, although both 16 GB
and 32 GB models are available.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

5 files changed, 103 insertions, 0 deletions

diff --git a/board/acer/picasso/Kconfig b/board/acer/picasso/Kconfig
new file mode 100644
index 00000000000..73c0aa08508
--- /dev/null
+++ b/board/acer/picasso/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_PICASSO
+
+config SYS_BOARD
+	default "picasso"
+
+config SYS_VENDOR
+	default "acer"
+
+config SYS_CONFIG_NAME
+	default "picasso"
+
+endif
diff --git a/board/acer/picasso/MAINTAINERS b/board/acer/picasso/MAINTAINERS
new file mode 100644
index 00000000000..99f8c0b6d7f
--- /dev/null
+++ b/board/acer/picasso/MAINTAINERS
@@ -0,0 +1,7 @@
+PICASSO BOARD
+M:	Svyatoslav Ryhel <clamor95@gmail.com>
+S:	Maintained
+F:	board/acer/picasso/
+F:	configs/picasso_defconfig
+F:	doc/board/acer/picasso.rst
+F:	include/configs/picasso.h
diff --git a/board/acer/picasso/Makefile b/board/acer/picasso/Makefile
new file mode 100644
index 00000000000..675059c112d
--- /dev/null
+++ b/board/acer/picasso/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+#  (C) Copyright 2010,2011
+#  NVIDIA Corporation <www.nvidia.com>
+#
+#  (C) Copyright 2024
+#  Svyatoslav Ryhel <clamor95@gmail.com>
+
+obj-y += picasso.o
diff --git a/board/acer/picasso/picasso.c b/board/acer/picasso/picasso.c
new file mode 100644
index 00000000000..d3e600cad52
--- /dev/null
+++ b/board/acer/picasso/picasso.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  (C) Copyright 2010,2011
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ *  (C) Copyright 2024
+ *  Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+/* Picasso derives from Ventana board */
+
+#include <dm.h>
+#include <i2c.h>
+#include <log.h>
+#include <linux/delay.h>
+
+#define TPS6586X_I2C_ADDRESS	0x34
+#define TPS6586X_SUPPLYENE	0x14
+#define   EXITSLREQ_BIT		BIT(1)
+#define   SLEEP_MODE_BIT	BIT(3)
+
+#ifdef CONFIG_CMD_POWEROFF
+int do_poweroff(struct cmd_tbl *cmdtp,
+		int flag, int argc, char *const argv[])
+{
+	struct udevice *dev;
+	uchar data_buffer[1];
+	int ret;
+
+	ret = i2c_get_chip_for_busnum(0, TPS6586X_I2C_ADDRESS, 1, &dev);
+	if (ret) {
+		log_debug("cannot find PMIC I2C chip\n");
+		return 0;
+	}
+
+	ret = dm_i2c_read(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
+	if (ret)
+		return ret;
+
+	data_buffer[0] &= ~EXITSLREQ_BIT;
+
+	ret = dm_i2c_write(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
+	if (ret)
+		return ret;
+
+	data_buffer[0] |= SLEEP_MODE_BIT;
+
+	ret = dm_i2c_write(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
+	if (ret)
+		return ret;
+
+	// wait some time and then print error
+	mdelay(5000);
+	printf("Failed to power off!!!\n");
+	return 1;
+}
+#endif
diff --git a/board/acer/picasso/picasso.env b/board/acer/picasso/picasso.env
new file mode 100644
index 00000000000..d9409b07d98
--- /dev/null
+++ b/board/acer/picasso/picasso.env
@@ -0,0 +1,18 @@
+#include <env/nvidia/prod_upd.env>
+
+button_cmd_0_name=Volume Down
+button_cmd_0=bootmenu
+partitions=name=emmc,start=0,size=-,uuid=${uuid_gpt_rootfs}
+
+boot_block_size_r=0x100000
+boot_block_size=0x800
+boot_dev=1
+
+bootmenu_0=mount internal storage=usb start && ums 0 mmc 0; 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=update bootloader=run flash_uboot
+bootmenu_4=reboot RCM=enterrcm
+bootmenu_5=reboot=reset
+bootmenu_6=power off=poweroff
+bootmenu_delay=-1