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 Reviewed-by: Simon Glass sjg@chromium.org --- arch/arm/dts/exynos7420.dtsi | 83 +++++++++++++++++++++++++ arch/arm/mach-exynos/Kconfig | 8 +++ 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 | 34 +++++++++++ include/configs/exynos7420-common.h | 113 +++++++++++++++++++++++++++++++++++ 7 files changed, 282 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..b398021 --- /dev/null +++ b/arch/arm/dts/exynos7420.dtsi @@ -0,0 +1,83 @@ +/* + * 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@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@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@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@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>; + u-boot,dm-pre-reloc; + }; + }; + + serial@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 28a6a60..0a6cb33 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -20,6 +20,14 @@ config ARCH_EXYNOS5 Cortex-A7 CPU in big.LITTLE configuration). There are multiple SoCs in this family including Exynos5250, Exynos5420 and Exynos5800.
+config ARCH_EXYNOS7 + bool "Exynos7 SoC family" + select ARM64 + help + Samsung Exynos7 SoC family are based on ARM Cortex-A57 CPU or + Cortex-A53 CPU (and some in a big.LITTLE configuration). There are + multiple SoCs in this family including Exynos7420. + endchoice
if ARCH_EXYNOS4 diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index f3c07b7..0cc6c32 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -7,6 +7,7 @@
obj-y += soc.o obj-$(CONFIG_CPU_V7) += clock.o pinmux.o power.o system.o +obj-$(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 737a8dd..f9c7468 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..c6a756d --- /dev/null +++ b/include/configs/espresso7420.h @@ -0,0 +1,34 @@ +/* + * 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_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..9e03962 --- /dev/null +++ b/include/configs/exynos7420-common.h @@ -0,0 +1,113 @@ +/* + * 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 + +/* Device Tree */ +#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 */