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-rw-r--r--arch/arm/dts/Makefile1
-rw-r--r--arch/arm/dts/exynos850-e850-96-u-boot.dtsi37
-rw-r--r--arch/arm/dts/exynos850-e850-96.dts273
-rw-r--r--arch/arm/mach-exynos/Kconfig19
-rw-r--r--board/samsung/e850-96/Kconfig16
-rw-r--r--board/samsung/e850-96/MAINTAINERS9
-rw-r--r--board/samsung/e850-96/Makefile6
-rw-r--r--board/samsung/e850-96/e850-96.c22
-rw-r--r--configs/e850-96_defconfig21
-rw-r--r--doc/board/samsung/e850-96.rst87
-rw-r--r--doc/board/samsung/img/exynos850-boot-architecture.svg1283
-rw-r--r--doc/board/samsung/index.rst1
-rw-r--r--include/configs/e850-96.h12
13 files changed, 1786 insertions, 1 deletions
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b5c588c3363..9ed751af411 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -31,6 +31,7 @@ dtb-$(CONFIG_EXYNOS7420) += exynos7420-espresso7420.dtb
dtb-$(CONFIG_TARGET_A5Y17LTE) += exynos78x0-axy17lte.dtb
dtb-$(CONFIG_TARGET_A3Y17LTE) += exynos78x0-axy17lte.dtb
dtb-$(CONFIG_TARGET_A7Y17LTE) += exynos78x0-axy17lte.dtb
+dtb-$(CONFIG_TARGET_E850_96) += exynos850-e850-96.dtb
dtb-$(CONFIG_ARCH_APPLE) += \
t8103-j274.dtb \
diff --git a/arch/arm/dts/exynos850-e850-96-u-boot.dtsi b/arch/arm/dts/exynos850-e850-96-u-boot.dtsi
new file mode 100644
index 00000000000..7ad11e9faab
--- /dev/null
+++ b/arch/arm/dts/exynos850-e850-96-u-boot.dtsi
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Linaro Ltd.
+ */
+
+&cmu_top {
+ bootph-all;
+};
+
+&cmu_peri {
+ bootph-all;
+};
+
+&oscclk {
+ bootph-all;
+};
+
+&pinctrl_alive {
+ bootph-all;
+};
+
+&pmu_system_controller {
+ bootph-all;
+ samsung,uart-debug-1;
+};
+
+&serial_0 {
+ bootph-all;
+};
+
+&uart1_pins {
+ bootph-all;
+};
+
+&usi_uart {
+ bootph-all;
+};
diff --git a/arch/arm/dts/exynos850-e850-96.dts b/arch/arm/dts/exynos850-e850-96.dts
new file mode 100644
index 00000000000..f074df8982b
--- /dev/null
+++ b/arch/arm/dts/exynos850-e850-96.dts
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * WinLink E850-96 board device tree source
+ *
+ * Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ * Copyright (C) 2021 Linaro Ltd.
+ *
+ * Device tree source file for WinLink's E850-96 board which is based on
+ * Samsung Exynos850 SoC.
+ */
+
+/dts-v1/;
+
+#include "exynos850.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ model = "WinLink E850-96 board";
+ compatible = "winlink,e850-96", "samsung,exynos850";
+
+ aliases {
+ mmc0 = &mmc_0;
+ serial0 = &serial_0;
+ };
+
+ chosen {
+ stdout-path = &serial_0;
+ };
+
+ connector {
+ compatible = "gpio-usb-b-connector", "usb-b-connector";
+ label = "micro-USB";
+ type = "micro";
+ vbus-supply = <&reg_usb_host_vbus>;
+ id-gpios = <&gpa0 0 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&micro_usb_det_pins>;
+
+ port {
+ usb_dr_connector: endpoint {
+ remote-endpoint = <&usb1_drd_sw>;
+ };
+ };
+ };
+
+ /*
+ * RAM: 4 GiB (eMCP):
+ * - 2 GiB at 0x80000000
+ * - 2 GiB at 0x880000000
+ *
+ * 0xbab00000..0xbfffffff: secure memory (85 MiB).
+ */
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x0 0x80000000 0x3ab00000>,
+ <0x0 0xc0000000 0x40000000>,
+ <0x8 0x80000000 0x80000000>;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&key_voldown_pins &key_volup_pins>;
+
+ volume-down-key {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ gpios = <&gpa1 0 GPIO_ACTIVE_LOW>;
+ };
+
+ volume-up-key {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ gpios = <&gpa0 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ /* HEART_BEAT_LED */
+ user_led1: led-1 {
+ label = "yellow:user1";
+ gpios = <&gpg2 2 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_YELLOW>;
+ function = LED_FUNCTION_HEARTBEAT;
+ linux,default-trigger = "heartbeat";
+ };
+
+ /* eMMC_LED */
+ user_led2: led-2 {
+ label = "yellow:user2";
+ gpios = <&gpg2 3 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_YELLOW>;
+ linux,default-trigger = "mmc0";
+ };
+
+ /* SD_LED */
+ user_led3: led-3 {
+ label = "white:user3";
+ gpios = <&gpg2 4 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_WHITE>;
+ function = LED_FUNCTION_SD;
+ linux,default-trigger = "mmc2";
+ };
+
+ /* WIFI_LED */
+ wlan_active_led: led-4 {
+ label = "yellow:wlan";
+ gpios = <&gpg2 6 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_YELLOW>;
+ function = LED_FUNCTION_WLAN;
+ linux,default-trigger = "phy0tx";
+ default-state = "off";
+ };
+
+ /* BLUETOOTH_LED */
+ bt_active_led: led-5 {
+ label = "blue:bt";
+ gpios = <&gpg2 7 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_BLUETOOTH;
+ linux,default-trigger = "hci0-power";
+ default-state = "off";
+ };
+ };
+
+ /* TODO: Remove this once PMIC is implemented */
+ reg_dummy: regulator-0 {
+ compatible = "regulator-fixed";
+ regulator-name = "dummy_reg";
+ };
+
+ reg_usb_host_vbus: regulator-1 {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_host_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpa3 5 GPIO_ACTIVE_LOW>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ ramoops@f0000000 {
+ compatible = "ramoops";
+ reg = <0x0 0xf0000000 0x200000>;
+ record-size = <0x20000>;
+ console-size = <0x20000>;
+ ftrace-size = <0x100000>;
+ pmsg-size = <0x20000>;
+ };
+ };
+
+ /*
+ * RTC clock (XrtcXTI); external, must be 32.768 kHz.
+ *
+ * TODO: Remove this once RTC clock is implemented properly as part of
+ * PMIC driver.
+ */
+ rtcclk: clock-rtcclk {
+ compatible = "fixed-clock";
+ clock-output-names = "rtcclk";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
+};
+
+&cmu_hsi {
+ clocks = <&oscclk>, <&rtcclk>,
+ <&cmu_top CLK_DOUT_HSI_BUS>,
+ <&cmu_top CLK_DOUT_HSI_MMC_CARD>,
+ <&cmu_top CLK_DOUT_HSI_USB20DRD>;
+ clock-names = "oscclk", "rtcclk", "dout_hsi_bus",
+ "dout_hsi_mmc_card", "dout_hsi_usb20drd";
+};
+
+&mmc_0 {
+ status = "okay";
+ mmc-hs200-1_8v;
+ mmc-hs400-1_8v;
+ cap-mmc-highspeed;
+ non-removable;
+ mmc-hs400-enhanced-strobe;
+ card-detect-delay = <200>;
+ clock-frequency = <800000000>;
+ bus-width = <8>;
+ samsung,dw-mshc-ciu-div = <3>;
+ samsung,dw-mshc-sdr-timing = <0 4>;
+ samsung,dw-mshc-ddr-timing = <2 4>;
+ samsung,dw-mshc-hs400-timing = <0 2>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd0_clk_pins &sd0_cmd_pins &sd0_rdqs_pins &sd0_nreset_pins
+ &sd0_bus1_pins &sd0_bus4_pins &sd0_bus8_pins>;
+};
+
+&oscclk {
+ clock-frequency = <26000000>;
+};
+
+&pinctrl_alive {
+ key_voldown_pins: key-voldown-pins {
+ samsung,pins = "gpa1-0";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
+
+ key_volup_pins: key-volup-pins {
+ samsung,pins = "gpa0-7";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
+
+ micro_usb_det_pins: micro-usb-det-pins {
+ samsung,pins = "gpa0-0";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ };
+};
+
+&rtc {
+ status = "okay";
+ clocks = <&cmu_apm CLK_GOUT_RTC_PCLK>, <&rtcclk>;
+ clock-names = "rtc", "rtc_src";
+};
+
+&serial_0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+};
+
+&usbdrd {
+ status = "okay";
+ vdd10-supply = <&reg_dummy>;
+ vdd33-supply = <&reg_dummy>;
+};
+
+&usbdrd_dwc3 {
+ dr_mode = "otg";
+ usb-role-switch;
+ role-switch-default-mode = "host";
+
+ port {
+ usb1_drd_sw: endpoint {
+ remote-endpoint = <&usb_dr_connector>;
+ };
+ };
+};
+
+&usbdrd_phy {
+ status = "okay";
+};
+
+&usi_uart {
+ samsung,clkreq-on; /* needed for UART mode */
+ status = "okay";
+};
+
+&watchdog_cl0 {
+ status = "okay";
+};
+
+&watchdog_cl1 {
+ status = "okay";
+};
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 45fc6bb024b..af00ee1db07 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -2,7 +2,7 @@ if ARCH_EXYNOS
config BOARD_COMMON
def_bool y
- depends on !TARGET_SMDKV310 && !TARGET_ARNDALE
+ depends on !TARGET_SMDKV310 && !TARGET_ARNDALE && !TARGET_E850_96
config SPI_BOOTING
bool
@@ -237,6 +237,22 @@ config TARGET_A3Y17LTE
endchoice
endif
+if ARCH_EXYNOS9
+
+choice
+ prompt "EXYNOS9 board select"
+
+config TARGET_E850_96
+ bool "WinLink E850-96 board"
+ select ARM64
+ select CLK_EXYNOS
+ select OF_CONTROL
+ select PINCTRL
+ select PINCTRL_EXYNOS850
+
+endchoice
+endif
+
config SYS_SOC
default "exynos"
@@ -261,5 +277,6 @@ source "board/samsung/smdk5250/Kconfig"
source "board/samsung/smdk5420/Kconfig"
source "board/samsung/espresso7420/Kconfig"
source "board/samsung/axy17lte/Kconfig"
+source "board/samsung/e850-96/Kconfig"
endif
diff --git a/board/samsung/e850-96/Kconfig b/board/samsung/e850-96/Kconfig
new file mode 100644
index 00000000000..f891a906959
--- /dev/null
+++ b/board/samsung/e850-96/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_E850_96
+
+config EXYNOS850
+ bool "Exynos850 SoC support"
+ default y
+
+config SYS_BOARD
+ default "e850-96"
+
+config SYS_VENDOR
+ default "samsung"
+
+config SYS_CONFIG_NAME
+ default "e850-96"
+
+endif
diff --git a/board/samsung/e850-96/MAINTAINERS b/board/samsung/e850-96/MAINTAINERS
new file mode 100644
index 00000000000..e8b9365eea8
--- /dev/null
+++ b/board/samsung/e850-96/MAINTAINERS
@@ -0,0 +1,9 @@
+WINLINK E850-96 BOARD
+M: Sam Protsenko <semen.protsenko@linaro.org>
+S: Maintained
+F: arch/arm/dts/exynos850-e850-96-u-boot.dtsi
+F: arch/arm/dts/exynos850-e850-96.dts
+F: board/samsung/e850-96/
+F: configs/e850-96_defconfig
+F: doc/board/samsung/e850-96.rst
+F: include/configs/e850-96.h
diff --git a/board/samsung/e850-96/Makefile b/board/samsung/e850-96/Makefile
new file mode 100644
index 00000000000..301c2233711
--- /dev/null
+++ b/board/samsung/e850-96/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2020, Linaro Limited
+# Sam Protsenko <semen.protsenko@linaro.org>
+
+obj-y := e850-96.o
diff --git a/board/samsung/e850-96/e850-96.c b/board/samsung/e850-96/e850-96.c
new file mode 100644
index 00000000000..a00d81b5d4c
--- /dev/null
+++ b/board/samsung/e850-96/e850-96.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020, Linaro Limited
+ * Sam Protsenko <semen.protsenko@linaro.org>
+ */
+
+#include <init.h>
+
+int dram_init(void)
+{
+ return fdtdec_setup_mem_size_base();
+}
+
+int dram_init_banksize(void)
+{
+ return fdtdec_setup_memory_banksize();
+}
+
+int board_init(void)
+{
+ return 0;
+}
diff --git a/configs/e850-96_defconfig b/configs/e850-96_defconfig
new file mode 100644
index 00000000000..bb41635ff78
--- /dev/null
+++ b/configs/e850-96_defconfig
@@ -0,0 +1,21 @@
+CONFIG_ARM=y
+CONFIG_ARCH_CPU_INIT=y
+CONFIG_ARCH_EXYNOS=y
+CONFIG_TEXT_BASE=0xf8800000
+CONFIG_SYS_MALLOC_LEN=0x81f000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_ARCH_EXYNOS9=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xf8c00000
+CONFIG_DEFAULT_DEVICE_TREE="exynos850-e850-96"
+CONFIG_SYS_LOAD_ADDR=0x80000000
+# CONFIG_AUTOBOOT is not set
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_NET is not set
+CONFIG_CLK_EXYNOS850=y
+# CONFIG_MMC is not set
+CONFIG_SOC_SAMSUNG=y
+CONFIG_EXYNOS_PMU=y
+CONFIG_EXYNOS_USI=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_SYSCON=y
diff --git a/doc/board/samsung/e850-96.rst b/doc/board/samsung/e850-96.rst
new file mode 100644
index 00000000000..0cb95473e53
--- /dev/null
+++ b/doc/board/samsung/e850-96.rst
@@ -0,0 +1,87 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Sam Protsenko <semen.protsenko@linaro.org>
+
+WinLink E850-96 board
+=====================
+
+Overview
+--------
+
+WinLink's E850-96 board [1]_ is based on Samsung Exynos850 SoC and follows
+96Boards Consumer Edition specification [2]_. That makes it possible to use
+96Boards mezzanine boards [3]_ along with it. It's an open-hardware board and
+the hardware design files [4]_ were published, along with the supported
+software [5]_ and related documentation.
+
+U-Boot can be used on E850-96 instead of the original Samsung LittleKernel based
+bootloader [6]_. Because FWBL1 [7]_ doesn't verify bootloader's signature, there
+is no need to sign a U-Boot binary. That means U-Boot binary can be flashed into
+``bootloader`` partition (instead of LittleKernel bootloader) and it will just
+work.
+
+Because BL2 bootloader already sets up DRAM and runs the final bootloader
+(U-Boot) from DRAM, there is no need in U-Boot SPL. It's enough to have only
+U-Boot proper (``u-boot.bin``).
+
+Boot Flow
+---------
+
+The boot path for Exynos850 is shown on the figure below.
+
+.. image:: img/exynos850-boot-architecture.svg
+ :alt: Exynos850 SoC boot flow
+
+Legend:
+
+* ``BL0``: Boot ROM code
+* ``BL1``: Software part of Boot ROM
+* ``EPBL``: Exynos Primary Boot Loader
+* ``BL2``: Initializes CMU and DRAM and runs the final bootloader
+* ``Bootloader``: Final bootloader (e.g. U-Boot); also called BL33 in terms of
+ ARM boot flow
+* ``EL3_MON``: EL3 monitor (trusted firmware, handles SMC calls); also called
+ BL31 in terms of ARM boot flow
+* ``LDFW``: Loadable Firmware
+
+Build Procedure
+---------------
+
+.. warning::
+ At the moment both eMMC and USB features are not enabled in U-Boot. Flashing
+ U-Boot binary **WILL** effectively brick your board. The ``dltool`` [8]_ can
+ be used then to perform USB boot and flash LittleKernel bootloader binary [7]_
+ to unbrick and revive the board. Flashing U-Boot binary might be helpful for
+ developers or anybody who want to check current state of U-Boot enablement on
+ E850-96 (which is mostly serial console and related blocks).
+
+Build U-Boot binary from source code (using AArch64 baremetal GCC toolchain):
+
+.. prompt:: bash $
+
+ export PATH=<toolchain path>/bin:$PATH
+ export CROSS_COMPILE=<toolchain prefix>
+ make e850-96_defconfig
+ make
+
+Boot E850-96 board into fastboot mode as described in board software doc [9]_,
+and flash U-Boot binary into ``bootloader`` eMMC partition:
+
+.. prompt:: bash $
+
+ fastboot flash bootloader u-boot.bin
+ fastboot reboot
+
+U-Boot will boot up to the shell.
+
+References
+----------
+
+.. [1] https://www.96boards.org/product/e850-96b/
+.. [2] https://www.96boards.org/products/ce/
+.. [3] https://www.96boards.org/products/mezzanine/
+.. [4] https://www.96boards.org/documentation/consumer/e850-96b/hardware-docs/
+.. [5] https://gitlab.com/Linaro/96boards/e850-96/
+.. [6] https://gitlab.com/Linaro/96boards/e850-96/lk
+.. [7] https://gitlab.com/Linaro/96boards/e850-96/images
+.. [8] https://gitlab.com/Linaro/96boards/e850-96/tools/dltool
+.. [9] https://gitlab.com/Linaro/96boards/e850-96/doc
diff --git a/doc/board/samsung/img/exynos850-boot-architecture.svg b/doc/board/samsung/img/exynos850-boot-architecture.svg
new file mode 100644
index 00000000000..c6e850407b4
--- /dev/null
+++ b/doc/board/samsung/img/exynos850-boot-architecture.svg
@@ -0,0 +1,1283 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Do not edit this file with editors other than draw.io -->
+
+<svg
+ version="1.1"
+ width="611px"
+ height="327px"
+ viewBox="-0.5 -0.5 611 327"
+ content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2023-12-13T00:04:32.824Z&quot; agent=&quot;Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0&quot; etag=&quot;21pvX7xTZUZ4TDUqmo5l&quot; version=&quot;22.1.8&quot; type=&quot;device&quot;&gt;
+ &lt;diagram name=&quot;Page-1&quot; id=&quot;F-97ItDN78I3cBfC3uC2&quot;&gt;
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+ &lt;root&gt;
+ &lt;mxCell id=&quot;0&quot; /&gt;
+ &lt;mxCell id=&quot;1&quot; parent=&quot;0&quot; /&gt;
+ &lt;mxCell id=&quot;azJPLbs4vMiacVWs4TNu-47&quot; value=&quot;Secure World&quot; style=&quot;shape=partialRectangle;whiteSpace=wrap;html=1;bottom=0;right=0;fillColor=#f8cecc;fontFamily=Helvetica;fontSize=11;strokeColor=#b85450;verticalAlign=top;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;
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diff --git a/doc/board/samsung/index.rst b/doc/board/samsung/index.rst
index 971805e2016..a1c9636b050 100644
--- a/doc/board/samsung/index.rst
+++ b/doc/board/samsung/index.rst
@@ -7,3 +7,4 @@ Samsung
:maxdepth: 2
axy17lte
+ e850-96
diff --git a/include/configs/e850-96.h b/include/configs/e850-96.h
new file mode 100644
index 00000000000..4607b3089b2
--- /dev/null
+++ b/include/configs/e850-96.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2020, Linaro Limited
+ * Sam Protsenko <semen.protsenko@linaro.org>
+ *
+ * Configuration for E850-96 board.
+ */
+
+#ifndef __E850_96_H
+#define __E850_96_H
+
+#endif /* __E850_96_H */