[PATCH 6/6 v4] board: samsung: add Samsung Galaxy S9/S9+(SM-G96x0) board

[Dzmitry Sankouski <dsankouski@gmail.com>]

Samsung S9 SM-G9600 - Snapdragon SDM845 version of the phone,
for China \ Hong Kong markets.
Has unlockable bootloader, unlike SM-G960U (American market version),
which allows running u-boot as a chain-loaded bootloader.

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
---
Changes for v2:
- Create documentation file for SDM845 boards
- Add starqltechn board documentation
Changes for v3:
- fix comment in starqltechn.c
Changes for v4:
- move configs to Kconfig file
- remove starqltechn.h file
- set SYS_CONFIG_NAME to default of sdm845
- remove unneeded options from starqltechn_defconfig

 arch/arm/dts/Makefile                   |  1 +
 arch/arm/dts/starqltechn-uboot.dtsi     | 39 ++++++++++++++++++
 arch/arm/dts/starqltechn.dts            | 53 +++++++++++++++++++++++++
 arch/arm/mach-snapdragon/Kconfig        | 17 ++++++++
 board/samsung/starqltechn/Kconfig       | 22 ++++++++++
 board/samsung/starqltechn/MAINTAINERS   |  6 +++
 board/samsung/starqltechn/Makefile      |  9 +++++
 board/samsung/starqltechn/starqltechn.c | 10 +++++
 configs/starqltechn_defconfig           | 30 ++++++++++++++
 doc/board/qualcomm/index.rst            |  1 +
 doc/board/qualcomm/sdm845.rst           | 38 ++++++++++++++++++
 11 files changed, 226 insertions(+)
 create mode 100644 arch/arm/dts/starqltechn-uboot.dtsi
 create mode 100644 arch/arm/dts/starqltechn.dts
 create mode 100644 board/samsung/starqltechn/Kconfig
 create mode 100644 board/samsung/starqltechn/MAINTAINERS
 create mode 100644 board/samsung/starqltechn/Makefile
 create mode 100644 board/samsung/starqltechn/starqltechn.c
 create mode 100644 configs/starqltechn_defconfig
 create mode 100644 doc/board/qualcomm/sdm845.rst

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 82a0790cc0..90d922dab7 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -467,6 +467,7 @@ dtb-$(CONFIG_TARGET_SL28) += fsl-ls1028a-kontron-sl28.dtb \
 
 dtb-$(CONFIG_TARGET_DRAGONBOARD410C) += dragonboard410c.dtb
 dtb-$(CONFIG_TARGET_DRAGONBOARD820C) += dragonboard820c.dtb
+dtb-$(CONFIG_TARGET_STARQLTECHN) += starqltechn.dtb
 
 dtb-$(CONFIG_TARGET_STEMMY) += ste-ux500-samsung-stemmy.dtb
 
diff --git a/arch/arm/dts/starqltechn-uboot.dtsi b/arch/arm/dts/starqltechn-uboot.dtsi
new file mode 100644
index 0000000000..d8d75e018a
--- /dev/null
+++ b/arch/arm/dts/starqltechn-uboot.dtsi
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot addition to handle Samsung S9 SM-G9600 (starqltechn) pins
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ *
+ */
+
+/
+{
+	soc {
+		u-boot,dm-pre-reloc;
+		gcc {
+			clock-controller@100000 {
+				u-boot,dm-pre-reloc;
+			};
+			serial@0xa84000 {
+				u-boot,dm-pre-reloc;
+			};
+			gpio_north@3900000 {
+				u-boot,dm-pre-reloc;
+			};
+			pinctrl@3900000 {
+				u-boot,dm-pre-reloc;
+			};
+		};
+	};
+};
+
+&pm8998_pon {
+	key_vol_down {
+		gpios = <&pm8998_pon 1 0>;
+		label = "key_vol_down";
+	};
+	key_power {
+		gpios = <&pm8998_pon 0 0>;
+		label = "key_power";
+	};
+};
diff --git a/arch/arm/dts/starqltechn.dts b/arch/arm/dts/starqltechn.dts
new file mode 100644
index 0000000000..387420f30b
--- /dev/null
+++ b/arch/arm/dts/starqltechn.dts
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Samsung S9 SM-G9600 (starqltechn) board device tree source
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ *
+ */
+
+/dts-v1/;
+
+#include "sdm845.dtsi"
+
+/ {
+	model = "Samsung S9 (SM-G9600)";
+	compatible = "qcom,sdm845-mtp", "qcom,sdm845", "qcom,mtp";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	chosen {
+		stdout-path = "serial0:921600n8";
+	};
+
+	aliases {
+		serial0 = &debug_uart;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0xfe1bffff>;
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	soc: soc {
+		serial@0xa84000 {
+			status = "ok";
+		};
+
+		pinctrl@3900000 {
+			muic_i2c: muic_i2c {
+				pins = "GPIO_33", "GPIO_34";
+				drive-strength = <0x2>;
+				function = "gpio";
+				bias-disable;
+			};
+		};
+	};
+};
+
+#include "starqltechn-uboot.dtsi"
diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index 1a6a608967..12cf02a56a 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -12,6 +12,10 @@ config SPL_SYS_MALLOC_F_LEN
 config SDM845
 	bool "Qualcomm Snapdragon 845 SoC"
 	default n
+	select LINUX_KERNEL_IMAGE_HEADER
+
+config LNX_KRNL_IMG_TEXT_OFFSET_BASE
+	default 0x80000000
 
 choice
 	prompt "Snapdragon board select"
@@ -40,9 +44,22 @@ config TARGET_DRAGONBOARD820C
 	  - 3GiB RAM
 	  - 32GiB UFS drive
 
+config TARGET_STARQLTECHN
+	bool "Samsung S9 SM-G9600(starqltechn)"
+	help
+	  Support for Samsung S9 SM-G9600(starqltechn) board.
+	  Features:
+	  - Qualcomm Snapdragon SDM845 SoC
+	  - 4GiB RAM
+	  - 64GiB UFS drive
+	select MISC_INIT_R
+	select SDM845
+	select DM_ETH if NET
+
 endchoice
 
 source "board/qualcomm/dragonboard410c/Kconfig"
 source "board/qualcomm/dragonboard820c/Kconfig"
+source "board/samsung/starqltechn/Kconfig"
 
 endif
diff --git a/board/samsung/starqltechn/Kconfig b/board/samsung/starqltechn/Kconfig
new file mode 100644
index 0000000000..0eea666d03
--- /dev/null
+++ b/board/samsung/starqltechn/Kconfig
@@ -0,0 +1,22 @@
+if TARGET_STARQLTECHN
+
+config SYS_BOARD
+	default "starqltechn"
+	help
+	  starqltechn is a production board for S9 and S9+ phones(SM-G96x0) phones based on SDM845 SoC.
+
+config SYS_CONFIG_NAME
+	string "Board configuration name"
+	default "sdm845"
+	help
+	  This option contains information about board configuration name.
+	  Based on this option include/configs/<CONFIG_SYS_CONFIG_NAME>.h header
+	  will be used for board configuration.
+
+config SYS_VENDOR
+	default "samsung"
+
+config SYS_CONFIG_NAME
+	default "starqltechn"
+
+endif
diff --git a/board/samsung/starqltechn/MAINTAINERS b/board/samsung/starqltechn/MAINTAINERS
new file mode 100644
index 0000000000..135cafdd69
--- /dev/null
+++ b/board/samsung/starqltechn/MAINTAINERS
@@ -0,0 +1,6 @@
+Samsung S9 (SM-G9600)(starqltechn)  Board
+M:	Dzmitry Sankouski <dsankouski@gmail.com>
+S:	Maintained
+F:	board/samsung/starqltechn/
+F:	include/configs/starqltechn.h
+F:	configs/starqltechn_defconfig
diff --git a/board/samsung/starqltechn/Makefile b/board/samsung/starqltechn/Makefile
new file mode 100644
index 0000000000..c38c0b4710
--- /dev/null
+++ b/board/samsung/starqltechn/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+#
+# This empty file prevents make error.
+# Board logic defined in board/qualcomm/common/sdm845.c, no custom logic for starqltechn so far.
+#
+
+obj-y += starqltechn.o
diff --git a/board/samsung/starqltechn/starqltechn.c b/board/samsung/starqltechn/starqltechn.c
new file mode 100644
index 0000000000..f2cdb4eec2
--- /dev/null
+++ b/board/samsung/starqltechn/starqltechn.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * This empty file prevents make linking error.
+ * No custom logic for starqltechn so far.
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ *
+ */
+
+void nooop(void) {}
diff --git a/configs/starqltechn_defconfig b/configs/starqltechn_defconfig
new file mode 100644
index 0000000000..438a6c2f05
--- /dev/null
+++ b/configs/starqltechn_defconfig
@@ -0,0 +1,30 @@
+CONFIG_TARGET_STARQLTECHN=y
+CONFIG_ARM=y
+CONFIG_ARM_SMCCC=y
+CONFIG_ARCH_SNAPDRAGON=y
+CONFIG_IDENT_STRING="\nSamsung S9 SM-G9600"
+CONFIG_DEFAULT_DEVICE_TREE="starqltechn"
+CONFIG_SYS_TEXT_BASE=0x80000000
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_BOARD_EARLY_INIT_F=n
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_DISPLAY_CPUINFO=n
+CONFIG_HUSH_PARSER=y
+CONFIG_OF_CONTROL=y
+CONFIG_DM_STDIO=n
+CONFIG_MSM_GPIO=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_PM8916=y
+CONFIG_PM8916_GPIO=y
+CONFIG_SPMI_MSM=y
+CONFIG_CLK=y
+CONFIG_NET=n
+CONFIG_USE_PREBOOT=y
+CONFIG_CMD_GPIO=y
+CONFIG_PINCTRL=y
+CONFIG_MSM_GENI_SERIAL=y
+# CONFIG_DEBUG_UART=y
+# CONFIG_DEBUG_UART_MSM_GENI=y
+# CONFIG_DEBUG_UART_BASE=0xa84000
+# CONFIG_DEBUG_UART_CLOCK=7372800
+# CONFIG_DEBUG_UART_ANNOUNCE=y
diff --git a/doc/board/qualcomm/index.rst b/doc/board/qualcomm/index.rst
index f7e0aa9298..10b98214e9 100644
--- a/doc/board/qualcomm/index.rst
+++ b/doc/board/qualcomm/index.rst
@@ -7,3 +7,4 @@ Qualcomm
    :maxdepth: 2
 
    dragonboard410c
+   sdm845
diff --git a/doc/board/qualcomm/sdm845.rst b/doc/board/qualcomm/sdm845.rst
new file mode 100644
index 0000000000..cd46cbe9cf
--- /dev/null
+++ b/doc/board/qualcomm/sdm845.rst
@@ -0,0 +1,38 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Dzmitry Sankouski <dsankouski@gmail.com>
+
+Snapdragon 845
+================
+
+About this
+----------
+This document describes the information about Qualcomm Snapdragon 845
+supported boards and it's usage steps.
+
+SDM845 - hi-end qualcomm chip, introduced in late 2017.
+Mostly used in flagship phones and tablets of 2018.
+
+U-Boot can be used as a replacement for Qualcomm's original ABL (UEFI) bootloader.
+It is loaded as an Android boot image through ABL
+
+Installation
+------------
+First, setup ``CROSS_COMPILE`` for aarch64. Then, build U-Boot for your board::
+
+	$ export CROSS_COMPILE=<aarch64 toolchain prefix>
+	$ make <your board name here, see Boards section>_defconfig
+	$ make
+
+This will build ``u-boot.bin`` in the configured output directory.
+
+Boards
+------------
+starqlte
+^^^^^^^^^^^^
+
+The starqltechn is a production board for Samsung S9 (SM-G9600) phone,
+based on the Qualcomm SDM845 SoC.
+
+More information can be found on the `Samsung S9 page`_.
+
+.. _Samsung S9 page: https://en.wikipedia.org/wiki/Samsung_Galaxy_S9
-- 
2.20.1