[PATCH v2 12/13] board: samsung: Add support for E850-96 board
Sam Protsenko
semen.protsenko at linaro.org
Thu Jan 11 04:09:08 CET 2024
Add support for WinLink E850-96 board [1]. It's based on Exynos850 SoC
and follows 96boards specification, so it's compatible with 96boards
mezzanine boards [2]. This patch enables next features:
* Serial console
* USI
* PMU (muxing AP UART path)
* Pinctrl
* Clocks
* Timer (ARMv8 architected)
* Reset control
It's quite a minimal enablement. Features like MMC, USB and Ethernet
will be enabled later.
The rationale for config values is as follows:
* TEXT_BASE = 0xf8800000
That's where BL2 loads the U-Boot payload, so TEXT_BASE must be
exactly this value. Overall the memory map is designed in a way to
keep the bootloader in the upper 128 MiB area of RAM, which is
0xf8000000..0xffffffff. That includes bootloader's code, stack,
data, heap, MMU tables, etc. All the memory below that 128 MiB chunk
can be used for storing boot images (0x80000000..0xf8000000).
* CUSTOM_SYS_INIT_SP_ADDR = 0xf8c00000
Just 4 MiB above the TEXT_BASE address, to leave enough space for
U-Boot code and stack itself (grows downwards).
* SYS_LOAD_ADDR = 0x80000000
The beginning of RAM. That's where Linux kernel image must be
loaded.
* SYS_MALLOC_LEN = 0x81f000
8 MiB for malloc() + ENV_SIZE (128 KiB)
* SYS_MALLOC_F_LEN = 0x4000
Increase malloc() pool size available before relocation from 8 KiB
(default) to 16 KiB. Otherwise "alloc space exhausted" message
appears in U-Boot log during board_init_f() stage. There are next
reasons for doing so:
1. Having "bootph-all" flags in some dts nodes leads to binding
those during pre-relocation stage, and binding (DM) uses
dynamic memory allocation
2. clk-exynos850 driver uses CCF clocks, which in turn use dynamic
memory allocation
Device tree file was imported from Linux kernel. All nodes and boot
phase flags added in exynos850-e850-96-u-boot.dtsi are only needed to
enable serial console:
* oscclk -> cmu_top -> cmu_peri: generate UART/USI clocks
* pinctrl_alive and uart1_pins: needed to mux UART pins
* pmu_system_controller: configures AP UART path to uart1_pins
* usi_uart: configures USI block to operate as a UART protocol
* serial_0: enables serial console (UART)
[1] https://www.96boards.org/product/e850-96b/
[2] https://www.96boards.org/products/mezzanine/
Signed-off-by: Sam Protsenko <semen.protsenko at linaro.org>
---
Changes in v2:
- (none)
arch/arm/dts/Makefile | 1 +
arch/arm/dts/exynos850-e850-96-u-boot.dtsi | 37 +
arch/arm/dts/exynos850-e850-96.dts | 273 ++++
arch/arm/mach-exynos/Kconfig | 19 +-
board/samsung/e850-96/Kconfig | 16 +
board/samsung/e850-96/MAINTAINERS | 9 +
board/samsung/e850-96/Makefile | 6 +
board/samsung/e850-96/e850-96.c | 22 +
configs/e850-96_defconfig | 21 +
doc/board/samsung/e850-96.rst | 87 ++
.../img/exynos850-boot-architecture.svg | 1283 +++++++++++++++++
doc/board/samsung/index.rst | 1 +
include/configs/e850-96.h | 12 +
13 files changed, 1786 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/dts/exynos850-e850-96-u-boot.dtsi
create mode 100644 arch/arm/dts/exynos850-e850-96.dts
create mode 100644 board/samsung/e850-96/Kconfig
create mode 100644 board/samsung/e850-96/MAINTAINERS
create mode 100644 board/samsung/e850-96/Makefile
create mode 100644 board/samsung/e850-96/e850-96.c
create mode 100644 configs/e850-96_defconfig
create mode 100644 doc/board/samsung/e850-96.rst
create mode 100644 doc/board/samsung/img/exynos850-boot-architecture.svg
create mode 100644 include/configs/e850-96.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 773c2546131c..84b8203e0f6a 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 000000000000..7ad11e9faab2
--- /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 000000000000..f074df8982b3
--- /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 = <®_usb_host_vbus>;
+ id-gpios = <&gpa0 0 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <µ_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 at 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 at 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 = <®_dummy>;
+ vdd33-supply = <®_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 45fc6bb024b0..af00ee1db07a 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 000000000000..f891a906959b
--- /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 000000000000..e8b9365eea85
--- /dev/null
+++ b/board/samsung/e850-96/MAINTAINERS
@@ -0,0 +1,9 @@
+WINLINK E850-96 BOARD
+M: Sam Protsenko <semen.protsenko at 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 000000000000..301c22337119
--- /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 at 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 000000000000..a00d81b5d4c3
--- /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 at 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 000000000000..bb41635ff784
--- /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 000000000000..0cb95473e536
--- /dev/null
+++ b/doc/board/samsung/e850-96.rst
@@ -0,0 +1,87 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Sam Protsenko <semen.protsenko at 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 000000000000..c6e850407b4a
--- /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"
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+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+ <xhtml:div>iROM</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="40"
+ y="303"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text180">iROM</text>
+ </switch>
+ </g>
+ <path
+ d="M 99.5 315 L 99.5 325.5 L 80.5 300 L 99.5 274.5 L 99.5 285 L 200.5 285 L 200.5 274.5 L 219.5 300 L 200.5 325.5 L 200.5 315 Z"
+ fill="none"
+ stroke="rgb(0, 0, 0)"
+ stroke-miterlimit="10"
+ pointer-events="all"
+ id="path186" />
+ <g
+ transform="translate(-0.5 -0.5)"
+ id="g192">
+ <switch
+ id="switch190">
+ <foreignObject
+ style="overflow: visible; text-align: left;"
+ pointer-events="none"
+ width="100%"
+ height="100%"
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility">
+ <xhtml:div
+ style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 300px; margin-left: 150px;">
+ <xhtml:div
+ style="box-sizing: border-box; font-size: 0px; text-align: center;"
+ data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); ">
+ <xhtml:div
+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+ <xhtml:div>iRAM</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="150"
+ y="303"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text188">iRAM</text>
+ </switch>
+ </g>
+ <path
+ d="M 259.5 315 L 259.5 325.5 L 240.5 300 L 259.5 274.5 L 259.5 285 L 520.5 285 L 520.5 274.5 L 539.5 300 L 520.5 325.5 L 520.5 315 Z"
+ fill="none"
+ stroke="rgb(0, 0, 0)"
+ stroke-miterlimit="10"
+ pointer-events="all"
+ id="path194" />
+ <g
+ transform="translate(-0.5 -0.5)"
+ id="g200">
+ <switch
+ id="switch198">
+ <foreignObject
+ style="overflow: visible; text-align: left;"
+ pointer-events="none"
+ width="100%"
+ height="100%"
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility">
+ <xhtml:div
+ style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 300px; margin-left: 390px;">
+ <xhtml:div
+ style="box-sizing: border-box; font-size: 0px; text-align: center;"
+ data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); ">
+ <xhtml:div
+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+ <xhtml:div>DRAM</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="390"
+ y="303"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text196">DRAM</text>
+ </switch>
+ </g>
+ <path
+ d="M 0 100 L 590 100"
+ fill="none"
+ stroke="rgb(0, 0, 0)"
+ stroke-miterlimit="10"
+ stroke-dasharray="3 3"
+ pointer-events="stroke"
+ id="path202" />
+ <path
+ d="M 0 180 L 590 180"
+ fill="none"
+ stroke="rgb(0, 0, 0)"
+ stroke-miterlimit="10"
+ stroke-dasharray="3 3"
+ pointer-events="stroke"
+ id="path204" />
+ <path
+ d="M 0 250 L 590 250"
+ fill="none"
+ stroke="rgb(0, 0, 0)"
+ stroke-miterlimit="10"
+ stroke-dasharray="3 3"
+ pointer-events="stroke"
+ id="path206" />
+ <rect
+ x="550"
+ y="45"
+ width="60"
+ height="30"
+ fill="none"
+ stroke="none"
+ pointer-events="all"
+ id="rect208" />
+ <g
+ transform="translate(-0.5 -0.5)"
+ id="g214">
+ <switch
+ id="switch212">
+ <foreignObject
+ style="overflow: visible; text-align: left;"
+ pointer-events="none"
+ width="100%"
+ height="100%"
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility">
+ <xhtml:div
+ style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 60px; margin-left: 551px;">
+ <xhtml:div
+ style="box-sizing: border-box; font-size: 0px; text-align: center;"
+ data-drawio-colors="color: rgb(0, 0, 0); ">
+ <xhtml:div
+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">EL0</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="580"
+ y="63"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text210">EL0</text>
+ </switch>
+ </g>
+ <rect
+ x="550"
+ y="125"
+ width="60"
+ height="30"
+ fill="none"
+ stroke="none"
+ pointer-events="all"
+ id="rect216" />
+ <g
+ transform="translate(-0.5 -0.5)"
+ id="g222">
+ <switch
+ id="switch220">
+ <foreignObject
+ style="overflow: visible; text-align: left;"
+ pointer-events="none"
+ width="100%"
+ height="100%"
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility">
+ <xhtml:div
+ style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 140px; margin-left: 551px;">
+ <xhtml:div
+ style="box-sizing: border-box; font-size: 0px; text-align: center;"
+ data-drawio-colors="color: rgb(0, 0, 0); ">
+ <xhtml:div
+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">EL1</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="580"
+ y="143"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text218">EL1</text>
+ </switch>
+ </g>
+ <rect
+ x="550"
+ y="205"
+ width="60"
+ height="30"
+ fill="none"
+ stroke="none"
+ pointer-events="all"
+ id="rect224" />
+ <g
+ transform="translate(-0.5 -0.5)"
+ id="g230">
+ <switch
+ id="switch228">
+ <foreignObject
+ style="overflow: visible; text-align: left;"
+ pointer-events="none"
+ width="100%"
+ height="100%"
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility">
+ <xhtml:div
+ style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 220px; margin-left: 551px;">
+ <xhtml:div
+ style="box-sizing: border-box; font-size: 0px; text-align: center;"
+ data-drawio-colors="color: rgb(0, 0, 0); ">
+ <xhtml:div
+ style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">EL3</xhtml:div>
+ </xhtml:div>
+ </xhtml:div>
+ </foreignObject>
+ <text
+ x="580"
+ y="223"
+ fill="rgb(0, 0, 0)"
+ font-family="Helvetica"
+ font-size="11px"
+ text-anchor="middle"
+ id="text226">EL3</text>
+ </switch>
+ </g>
+ </g>
+ <switch
+ id="switch240">
+ <g
+ requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"
+ id="g234" />
+ <a
+ transform="translate(0,-5)"
+ xlink:href="https://www.drawio.com/doc/faq/svg-export-text-problems"
+ target="_blank"
+ id="a238">
+ <text
+ text-anchor="middle"
+ font-size="10px"
+ x="50%"
+ y="100%"
+ id="text236">Text is not SVG - cannot display</text>
+ </a>
+ </switch>
+</svg>
diff --git a/doc/board/samsung/index.rst b/doc/board/samsung/index.rst
index 971805e20169..a1c9636b0507 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 000000000000..4607b3089b21
--- /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 at linaro.org>
+ *
+ * Configuration for E850-96 board.
+ */
+
+#ifndef __E850_96_H
+#define __E850_96_H
+
+#endif /* __E850_96_H */
--
2.39.2
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