[U-Boot] [PATCH 8/9] arm: exynos: add support for Exynos7420 SoC

Thomas Abraham
2016-04-13T10:43:41Z

From: Thomas Abraham <thomas.ab@samsung.com>

Add support for Exynos7420 SoC. The Exynos7420 SoC has four Cortex-A57
and four Cortex-A53 CPUs and includes various peripheral controllers.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
---
arch/arm/dts/exynos7420.dtsi | 82 ++++++++++++++++++++++++
arch/arm/mach-exynos/Kconfig | 11 +++
arch/arm/mach-exynos/Makefile | 1 +
arch/arm/mach-exynos/mmu-arm64.c | 35 ++++++++++
arch/arm/mach-exynos/soc.c | 8 +++
include/configs/espresso7420.h | 35 ++++++++++
include/configs/exynos7420-common.h | 117 +++++++++++++++++++++++++++++++++++
7 files changed, 289 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/dts/exynos7420.dtsi
create mode 100644 arch/arm/mach-exynos/mmu-arm64.c
create mode 100644 include/configs/espresso7420.h
create mode 100644 include/configs/exynos7420-common.h

diff --git a/arch/arm/dts/exynos7420.dtsi b/arch/arm/dts/exynos7420.dtsi
new file mode 100644
index 0000000..990f8a1
--- /dev/null
+++ b/arch/arm/dts/exynos7420.dtsi
@@ -0,0 +1,82 @@
+/*
+ * Samsung Exynos7420 SoC device tree source
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/dts-v1/;
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/exynos7420-clk.h>
+/ {
+ compatible = "samsung,exynos7420";
+
+ fin_pll: xxti {
+ compatible = "fixed-clock";
+ clock-output-names = "fin_pll";
+ u-boot,dm-pre-reloc;
+ #clock-cells = <0>;
+ };
+
+ clock_topc: clock-controller at 10570000 {
+ compatible = "samsung,exynos7-clock-topc";
+ reg = <0x10570000 0x10000>;
+ u-boot,dm-pre-reloc;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>;
+ clock-names = "fin_pll";
+ };
+
+ clock_top0: clock-controller at 105d0000 {
+ compatible = "samsung,exynos7-clock-top0";
+ reg = <0x105d0000 0xb000>;
+ u-boot,dm-pre-reloc;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>, <&clock_topc DOUT_SCLK_BUS0_PLL>,
+ <&clock_topc DOUT_SCLK_BUS1_PLL>,
+ <&clock_topc DOUT_SCLK_CC_PLL>,
+ <&clock_topc DOUT_SCLK_MFC_PLL>;
+ clock-names = "fin_pll", "dout_sclk_bus0_pll",
+ "dout_sclk_bus1_pll", "dout_sclk_cc_pll",
+ "dout_sclk_mfc_pll";
+ };
+
+ clock_peric1: clock-controller at 14c80000 {
+ compatible = "samsung,exynos7-clock-peric1";
+ reg = <0x14c80000 0xd00>;
+ u-boot,dm-pre-reloc;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>, <&clock_top0 DOUT_ACLK_PERIC1>,
+ <&clock_top0 CLK_SCLK_UART1>,
+ <&clock_top0 CLK_SCLK_UART2>,
+ <&clock_top0 CLK_SCLK_UART3>;
+ clock-names = "fin_pll", "dout_aclk_peric1_66",
+ "sclk_uart1", "sclk_uart2", "sclk_uart3";
+ };
+
+ pinctrl at 13470000 {
+ compatible = "samsung,exynos7420-pinctrl";
+ reg = <0x13470000 0x1000>;
+ u-boot,dm-pre-reloc;
+
+ serial2_bus: serial2-bus {
+ samsung,pins = "gpd1-4", "gpd1-5";
+ samsung,pin-function = <2>;
+ samsung,pin-pud = <3>;
+ samsung,pin-drv = <0>;
+ };
+ };
+
+ serial at 14C30000 {
+ compatible = "samsung,exynos4210-uart";
+ reg = <0x14C30000 0x100>;
+ u-boot,dm-pre-reloc;
+ clocks = <&clock_peric1 PCLK_UART2>,
+ <&clock_peric1 SCLK_UART2>;
+ clock-names = "uart", "clk_uart_baud0";
+ pinctrl-names = "default";
+ pinctrl-0 = <&serial2_bus>;
+ };
+};
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index acab947..52a5a30 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -81,6 +81,16 @@ config TARGET_PEACH_PIT
select SUPPORT_SPL
select OF_CONTROL

+config TARGET_ESPRESSO7420
+ bool "ESPRESSO7420 board"
+ select ARM64
+ select SUPPORT_SPL
+ select OF_CONTROL
+ select SPL_DISABLE_OF_CONTROL
+ select PINCTRL
+ select PINCTRL_EXYNOS7420
+ select CLK_EXYNOS
+
endchoice

config SYS_SOC
@@ -95,5 +105,6 @@ source "board/samsung/odroid/Kconfig"
source "board/samsung/arndale/Kconfig"
source "board/samsung/smdk5250/Kconfig"
source "board/samsung/smdk5420/Kconfig"
+source "board/samsung/espresso7420/Kconfig"

endif
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index be5912e..a238a98 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -7,6 +7,7 @@

obj-y += soc.o
obj-$(CONFIG_CPU_V7) += clock.o pinmux.o power.o soc.o system.o
+obj-$(CONFIG_ARM64) += mmu-arm64.o

obj-$(CONFIG_EXYNOS5420) += sec_boot.o

diff --git a/arch/arm/mach-exynos/mmu-arm64.c b/arch/arm/mach-exynos/mmu-arm64.c
new file mode 100644
index 0000000..ba6d99d
--- /dev/null
+++ b/arch/arm/mach-exynos/mmu-arm64.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2016 Samsung Electronics
+ * Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/armv8/mmu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_EXYNOS7420
+static struct mm_region exynos7420_mem_map[] = {
+ {
+ .base = 0x10000000UL,
+ .size = 0x10000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN,
+ }, {
+ .base = 0x40000000UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE,
+ }, {
+ /* List terminator */
+ .base = 0,
+ .size = 0,
+ .attrs = 0,
+ },
+};
+
+struct mm_region *mem_map = exynos7420_mem_map;
+#endif
diff --git a/arch/arm/mach-exynos/soc.c b/arch/arm/mach-exynos/soc.c
index 5cea5ed..0706f5d 100644
--- a/arch/arm/mach-exynos/soc.c
+++ b/arch/arm/mach-exynos/soc.c
@@ -23,3 +23,11 @@ void enable_caches(void)
dcache_enable();
}
#endif
+
+#ifdef CONFIG_ARM64
+void lowlevel_init(void)
+{
+ armv8_switch_to_el2();
+ armv8_switch_to_el1();
+}
+#endif
diff --git a/include/configs/espresso7420.h b/include/configs/espresso7420.h
new file mode 100644
index 0000000..2af33e7
--- /dev/null
+++ b/include/configs/espresso7420.h
@@ -0,0 +1,35 @@
+/*
+ * Configuration settings for the SAMSUNG ESPRESSO7420 board.
+ * Copyright (C) 2016 Samsung Electronics
+ * Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_ESPRESSO7420_H
+#define __CONFIG_ESPRESSO7420_H
+
+#include <configs/exynos7420-common.h>
+
+#define CONFIG_BOARD_COMMON
+
+#define CONFIG_ESPRESSO7420
+#define CONFIG_ENV_IS_NOWHERE
+
+#define CONFIG_SYS_SDRAM_BASE 0x40000000
+#define CONFIG_SYS_TEXT_BASE 0x43E00000
+#define CONFIG_SPL_STACK CONFIG_IRAM_END
+#define CONFIG_SYS_INIT_SP_ADDR CONFIG_IRAM_END
+
+/* select serial console configuration */
+#define CONFIG_SERIAL2 /* use SERIAL 2 */
+#define CONFIG_DEFAULT_CONSOLE "console=ttySAC1,115200n8\0"
+
+#define CONFIG_IDENT_STRING " for ESPRESSO7420"
+#define CONFIG_DEFAULT_CONSOLE "console=ttySAC1,115200n8\0"
+
+/* DRAM Memory Banks */
+#define CONFIG_NR_DRAM_BANKS 8
+#define SDRAM_BANK_SIZE (256UL << 20UL) /* 256 MB */
+
+#endif /* __CONFIG_ESPRESSO7420_H */
diff --git a/include/configs/exynos7420-common.h b/include/configs/exynos7420-common.h
new file mode 100644
index 0000000..9a7e193
--- /dev/null
+++ b/include/configs/exynos7420-common.h
@@ -0,0 +1,117 @@
+/*
+ * Configuration settings for the Espresso7420 board.
+ * Copyright (C) 2016 Samsung Electronics
+ * Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_EXYNOS7420_COMMON_H
+#define __CONFIG_EXYNOS7420_COMMON_H
+
+/* High Level Configuration Options */
+#define CONFIG_SAMSUNG /* in a SAMSUNG core */
+#define CONFIG_EXYNOS7420 /* Exynos7 Family */
+#define CONFIG_S5P
+
+#include <asm/arch/cpu.h> /* get chip and board defs */
+#include <linux/sizes.h>
+
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/* Size of malloc() pool before and after relocation */
+#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + (80 << 20))
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
+#define CONFIG_SYS_PBSIZE 1024 /* Print Buffer Size */
+#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
+
+/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+/* select serial console configuration */
+#define CONFIG_BAUDRATE 115200
+
+/* FLASH and environment organization */
+#define CONFIG_SYS_NO_FLASH
+
+/* Timer input clock frequency */
+#define COUNTER_FREQUENCY 24000000
+
+/* Generic Interrupt Controller Definitions */
+#define CONFIG_GICV2
+#define GICD_BASE 0x11001000
+#define GICC_BASE 0x11002000
+
+#define CONFIG_DEVICE_TREE_LIST "exynos7420-espresso7420"
+
+/* IRAM Layout */
+#define CONFIG_IRAM_BASE 0x02100000
+#define CONFIG_IRAM_SIZE 0x58000
+#define CONFIG_IRAM_END (CONFIG_IRAM_BASE + CONFIG_IRAM_SIZE)
+
+/* Number of CPUs available */
+#define CONFIG_CORE_COUNT 0x8
+
+/* select serial console configuration */
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SILENT_CONSOLE
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_CONSOLE_MUX
+
+#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_SDRAM_BASE + 0x3E00000)
+
+#define PHYS_SDRAM_1 CONFIG_SYS_SDRAM_BASE
+#define PHYS_SDRAM_1_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_2 (CONFIG_SYS_SDRAM_BASE + SDRAM_BANK_SIZE)
+#define PHYS_SDRAM_2_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_3 (CONFIG_SYS_SDRAM_BASE + (2 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_3_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_4 (CONFIG_SYS_SDRAM_BASE + (3 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_4_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_5 (CONFIG_SYS_SDRAM_BASE + (4 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_5_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_6 (CONFIG_SYS_SDRAM_BASE + (5 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_6_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_7 (CONFIG_SYS_SDRAM_BASE + (6 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_7_SIZE SDRAM_BANK_SIZE
+#define PHYS_SDRAM_8 (CONFIG_SYS_SDRAM_BASE + (7 * SDRAM_BANK_SIZE))
+#define PHYS_SDRAM_8_SIZE SDRAM_BANK_SIZE
+
+/* Configuration of ENV Blocks */
+#define CONFIG_ENV_SIZE (16 << 10) /* 16 KB */
+
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 1) \
+ func(MMC, mmc, 0) \
+
+#ifndef MEM_LAYOUT_ENV_SETTINGS
+#define MEM_LAYOUT_ENV_SETTINGS \
+ "bootm_size=0x10000000\0" \
+ "kernel_addr_r=0x42000000\0" \
+ "fdt_addr_r=0x43000000\0" \
+ "ramdisk_addr_r=0x43300000\0" \
+ "scriptaddr=0x50000000\0" \
+ "pxefile_addr_r=0x51000000\0"
+#endif
+
+#ifndef EXYNOS_DEVICE_SETTINGS
+#define EXYNOS_DEVICE_SETTINGS \
+ "stdin=serial\0" \
+ "stdout=serial\0" \
+ "stderr=serial\0"
+#endif
+
+#ifndef EXYNOS_FDTFILE_SETTING
+#define EXYNOS_FDTFILE_SETTING
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ EXYNOS_DEVICE_SETTINGS \
+ EXYNOS_FDTFILE_SETTING \
+ MEM_LAYOUT_ENV_SETTINGS
+
+#endif /* __CONFIG_EXYNOS7420_COMMON_H */
--
1.6.6.rc2