[U-Boot] [PATCH 1/2] ARM: tegra: add core Tegra186 support
From: Stephen Warren swarren@nvidia.com
This adds the bare minimum code to support Tegra186, with UART and eMMC working.
The empty gpio.h is required because <asm/gpio.h> includes it. A future cleanup round may be able to solve this for all Tegra generations at once.
mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but instead to defer everything to mach-tegra/tegra186/Makefile. This allows the SoC code to pick-and-choose which of the C files in the "common" mach-tegra/ directory to compile in based on the SoC's needs. Most of the code is not valid for Tegra186, and this approach removes the need for mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach may be applied to all other Tegra SoCs in a future cleanup round.
board186.c is introduced to replace board.c and board2.c. These files currently contain a slew of SoC- and board-specific code that is not valid for Tegra186. This approach avoids adding yet more ifdefs to those files. A future cleanup round may refactor most of board*.c into board-/ SoC-specific functions files thus allowing the top-level functions like board_init_early_f to be shared again.
Signed-off-by: Stephen Warren swarren@nvidia.com --- This patch series depends on the following at compile time: * gpio: add Tegra186 GPIO driver * mmc: tegra: add basic Tegra186 support
... and the following only at run time: * dm: allow setting driver_data before/during bind
arch/arm/dts/tegra186.dtsi | 56 +++++++++++++++++++++++ arch/arm/include/asm/arch-tegra186/gpio.h | 10 +++++ arch/arm/include/asm/arch-tegra186/tegra.h | 16 +++++++ arch/arm/mach-tegra/Kconfig | 6 +++ arch/arm/mach-tegra/Makefile | 3 ++ arch/arm/mach-tegra/board186.c | 55 +++++++++++++++++++++++ arch/arm/mach-tegra/tegra186/Kconfig | 15 +++++++ arch/arm/mach-tegra/tegra186/Makefile | 8 ++++ include/configs/tegra186-common.h | 71 ++++++++++++++++++++++++++++++ 9 files changed, 240 insertions(+) create mode 100644 arch/arm/dts/tegra186.dtsi create mode 100644 arch/arm/include/asm/arch-tegra186/gpio.h create mode 100644 arch/arm/include/asm/arch-tegra186/tegra.h create mode 100644 arch/arm/mach-tegra/board186.c create mode 100644 arch/arm/mach-tegra/tegra186/Kconfig create mode 100644 arch/arm/mach-tegra/tegra186/Makefile create mode 100644 include/configs/tegra186-common.h
diff --git a/arch/arm/dts/tegra186.dtsi b/arch/arm/dts/tegra186.dtsi new file mode 100644 index 000000000000..18b6a2664349 --- /dev/null +++ b/arch/arm/dts/tegra186.dtsi @@ -0,0 +1,56 @@ +#include "skeleton.dtsi" +#include <dt-bindings/gpio/tegra-gpio.h> +#include <dt-bindings/interrupt-controller/arm-gic.h> + +/ { + compatible = "nvidia,tegra186"; + #address-cells = <2>; + #size-cells = <2>; + + gpio@2200000 { + compatible = "nvidia,tegra186-gpio"; + reg-names = "security", "gpio"; + reg = + <0x0 0x2200000 0x0 0x10000>, + <0x0 0x2210000 0x0 0x10000>; + interrupts = + <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + uarta: serial@3100000 { + compatible = "nvidia,tegra186-uart", "nvidia,tegra20-uart"; + reg = <0x0 0x03100000 0x0 0x10000>; + reg-shift = <2>; + status = "disabled"; + }; + + sdhci@3460000 { + compatible = "nvidia,tegra186-sdhci"; + reg = <0x0 0x03460000 0x0 0x200>; + interrupts = <GIC_SPI 31 0x04>; + status = "disabled"; + }; + + gpio@c2f0000 { + compatible = "nvidia,tegra186-gpio-aon"; + reg-names = "security", "gpio"; + reg = + <0x0 0xc2f0000 0x0 0x1000>, + <0x0 0xc2f1000 0x0 0x1000>; + interrupts = + <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; +}; diff --git a/arch/arm/include/asm/arch-tegra186/gpio.h b/arch/arm/include/asm/arch-tegra186/gpio.h new file mode 100644 index 000000000000..aaecfc7ea6c5 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra186/gpio.h @@ -0,0 +1,10 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _TEGRA186_GPIO_H_ +#define _TEGRA186_GPIO_H_ + +#endif diff --git a/arch/arm/include/asm/arch-tegra186/tegra.h b/arch/arm/include/asm/arch-tegra186/tegra.h new file mode 100644 index 000000000000..8031f23873ef --- /dev/null +++ b/arch/arm/include/asm/arch-tegra186/tegra.h @@ -0,0 +1,16 @@ +/* + * (C) Copyright 2013-2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _TEGRA186_TEGRA_H_ +#define _TEGRA186_TEGRA_H_ + +#define GICD_BASE 0x03881000 /* Generic Int Cntrlr Distrib */ +#define GICC_BASE 0x03882000 /* Generic Int Cntrlr CPU I/F */ +#define NV_PA_SDRAM_BASE 0x80000000 + +#include <asm/arch-tegra/tegra.h> + +#endif diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 616a1c3cf345..b18a12e34203 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -54,6 +54,11 @@ config TEGRA210 select TEGRA_GPIO select TEGRA_ARMV8_COMMON
+config TEGRA186 + bool "Tegra186 family" + select TEGRA186_GPIO + select TEGRA_ARMV8_COMMON + endchoice
config TEGRA_DISCONNECT_UDC_ON_BOOT @@ -77,5 +82,6 @@ source "arch/arm/mach-tegra/tegra30/Kconfig" source "arch/arm/mach-tegra/tegra114/Kconfig" source "arch/arm/mach-tegra/tegra124/Kconfig" source "arch/arm/mach-tegra/tegra210/Kconfig" +source "arch/arm/mach-tegra/tegra186/Kconfig"
endif diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index b2dbc6999c71..12ee1cd7495b 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -7,6 +7,7 @@ # SPDX-License-Identifier: GPL-2.0+ #
+ifndef CONFIG_TEGRA186 ifdef CONFIG_SPL_BUILD obj-y += spl.o obj-y += cpu.o @@ -30,9 +31,11 @@ obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o ifndef CONFIG_SPL_BUILD obj-$(CONFIG_ARMV7_PSCI) += psci.o endif +endif
obj-$(CONFIG_TEGRA20) += tegra20/ obj-$(CONFIG_TEGRA30) += tegra30/ obj-$(CONFIG_TEGRA114) += tegra114/ obj-$(CONFIG_TEGRA124) += tegra124/ +obj-$(CONFIG_TEGRA186) += tegra186/ obj-$(CONFIG_TEGRA210) += tegra210/ diff --git a/arch/arm/mach-tegra/board186.c b/arch/arm/mach-tegra/board186.c new file mode 100644 index 000000000000..f4b6152a7937 --- /dev/null +++ b/arch/arm/mach-tegra/board186.c @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/mmc.h> +#include <asm/arch-tegra/tegra_mmc.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->ram_size = (1.5 * 1024 * 1024 * 1024); + return 0; +} + +int board_early_init_f(void) +{ + return 0; +} + +int board_init(void) +{ + return 0; +} + +int board_late_init(void) +{ + return 0; +} + +void dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = gd->ram_size; +} + +void pad_init_mmc(struct mmc_host *host) +{ +} + +int board_mmc_init(bd_t *bd) +{ + tegra_mmc_init(); + + return 0; +} + +int ft_system_setup(void *blob, bd_t *bd) +{ + return 0; +} diff --git a/arch/arm/mach-tegra/tegra186/Kconfig b/arch/arm/mach-tegra/tegra186/Kconfig new file mode 100644 index 000000000000..124d8e583592 --- /dev/null +++ b/arch/arm/mach-tegra/tegra186/Kconfig @@ -0,0 +1,15 @@ +# Copyright (c) 2016, NVIDIA CORPORATION. +# +# SPDX-License-Identifier: GPL-2.0 + +if TEGRA186 + +choice + prompt "Tegra186 board select" + +endchoice + +config SYS_SOC + default "tegra186" + +endif diff --git a/arch/arm/mach-tegra/tegra186/Makefile b/arch/arm/mach-tegra/tegra186/Makefile new file mode 100644 index 000000000000..ce4610d8f809 --- /dev/null +++ b/arch/arm/mach-tegra/tegra186/Makefile @@ -0,0 +1,8 @@ +# Copyright (c) 2016, NVIDIA CORPORATION. +# +# SPDX-License-Identifier: GPL-2.0 + +obj-y += ../arm64-mmu.o +obj-y += ../board186.o +obj-y += ../lowlevel_init.o +obj-$(CONFIG_DISPLAY_CPUINFO) += ../sys_info.o diff --git a/include/configs/tegra186-common.h b/include/configs/tegra186-common.h new file mode 100644 index 000000000000..aa7b9d038a7e --- /dev/null +++ b/include/configs/tegra186-common.h @@ -0,0 +1,71 @@ +/* + * Copyright 2013-2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _TEGRA186_COMMON_H_ +#define _TEGRA186_COMMON_H_ + +#include "tegra-common.h" + +/* Cortex-A57 uses a cache line size of 64 bytes */ +#define CONFIG_SYS_CACHELINE_SIZE 64 + +/* + * NS16550 Configuration + */ +#define V_NS16550_CLK 408000000 /* 408MHz (pllp_out0) */ + +/* + * Miscellaneous configurable options + */ +#define CONFIG_STACKBASE 0x82800000 /* 40MB */ + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ + +#define CONFIG_SYS_TEXT_BASE 0x80080000 + +/* Generic Interrupt Controller */ +#define CONFIG_GICV2 + +/* + * Memory layout for where various images get loaded by boot scripts: + * + * scriptaddr can be pretty much anywhere that doesn't conflict with something + * else. Put it above BOOTMAPSZ to eliminate conflicts. + * + * pxefile_addr_r can be pretty much anywhere that doesn't conflict with + * something else. Put it above BOOTMAPSZ to eliminate conflicts. + * + * kernel_addr_r must be within the first 128M of RAM in order for the + * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will + * decompress itself to 0x8000 after the start of RAM, kernel_addr_r + * should not overlap that area, or the kernel will have to copy itself + * somewhere else before decompression. Similarly, the address of any other + * data passed to the kernel shouldn't overlap the start of RAM. Pushing + * this up to 16M allows for a sizable kernel to be decompressed below the + * compressed load address. + * + * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for + * the compressed kernel to be up to 16M too. + * + * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows + * for the FDT/DTB to be up to 1M, which is hopefully plenty. + */ +#define CONFIG_LOADADDR 0x80080000 +#define MEM_LAYOUT_ENV_SETTINGS \ + "scriptaddr=0x90000000\0" \ + "pxefile_addr_r=0x90100000\0" \ + "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \ + "fdt_addr_r=0x82000000\0" \ + "ramdisk_addr_r=0x82100000\0" + +/* Defines for SPL */ +#define CONFIG_SPL_TEXT_BASE 0x80108000 +#define CONFIG_SYS_SPL_MALLOC_START 0x80090000 +#define CONFIG_SPL_STACK 0x800ffffc + +#endif
From: Stephen Warren swarren@nvidia.com
P2771-0000 is a P3310 CPU board married to a P2597 I/O board. The combination contains SoC, DRAM, eMMC, SD card slot, HDMI, USB micro-B port, Ethernet, USB3 host port, SATA, PCIe, and two GPIO expansion headers.
Currently, due to U-Boot's level of support for Tegra186, the only features supported by U-Boot are the console UART and the on-board eMMC. Additional features will be added over time.
U-Boot has so far been tested by replacing the kernel image on the device with a U-Boot binary. It is anticipated that U-Boot will eventually replace the CCPLEX bootloader binary, as on previous chips. This hasn't yet been tested.
Signed-off-by: Stephen Warren swarren@nvidia.com --- arch/arm/dts/Makefile | 1 + arch/arm/dts/tegra186-p2771-0000.dts | 25 +++++++++++++++++++++++++ arch/arm/mach-tegra/tegra186/Kconfig | 10 ++++++++++ board/nvidia/p2771-0000/Kconfig | 16 ++++++++++++++++ board/nvidia/p2771-0000/MAINTAINERS | 6 ++++++ board/nvidia/p2771-0000/Makefile | 5 +++++ board/nvidia/p2771-0000/p2771-0000.c | 7 +++++++ configs/p2771-0000_defconfig | 31 +++++++++++++++++++++++++++++++ include/configs/p2771-0000.h | 33 +++++++++++++++++++++++++++++++++ 9 files changed, 134 insertions(+) create mode 100644 arch/arm/dts/tegra186-p2771-0000.dts create mode 100644 board/nvidia/p2771-0000/Kconfig create mode 100644 board/nvidia/p2771-0000/MAINTAINERS create mode 100644 board/nvidia/p2771-0000/Makefile create mode 100644 board/nvidia/p2771-0000/p2771-0000.c create mode 100644 configs/p2771-0000_defconfig create mode 100644 include/configs/p2771-0000.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index d1f8e2245148..83e4fcf24861 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -45,6 +45,7 @@ dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \ tegra124-jetson-tk1.dtb \ tegra124-nyan-big.dtb \ tegra124-venice2.dtb \ + tegra186-p2771-0000.dtb \ tegra210-e2220-1170.dtb \ tegra210-p2371-0000.dtb \ tegra210-p2371-2180.dtb \ diff --git a/arch/arm/dts/tegra186-p2771-0000.dts b/arch/arm/dts/tegra186-p2771-0000.dts new file mode 100644 index 000000000000..5f29ee450194 --- /dev/null +++ b/arch/arm/dts/tegra186-p2771-0000.dts @@ -0,0 +1,25 @@ +/dts-v1/; + +#include "tegra186.dtsi" + +/ { + model = "NVIDIA P2771-0000"; + compatible = "nvidia,p2771-0000", "nvidia,tegra186"; + + chosen { + stdout-path = &uarta; + }; + + aliases { + sdhci0 = "/sdhci@3460000"; + }; + + memory { + reg = <0x0 0x80000000 0x0 0x60000000>; + }; + + sdhci@3460000 { + status = "okay"; + bus-width = <8>; + }; +}; diff --git a/arch/arm/mach-tegra/tegra186/Kconfig b/arch/arm/mach-tegra/tegra186/Kconfig index 124d8e583592..97cf23f31f80 100644 --- a/arch/arm/mach-tegra/tegra186/Kconfig +++ b/arch/arm/mach-tegra/tegra186/Kconfig @@ -7,9 +7,19 @@ if TEGRA186 choice prompt "Tegra186 board select"
+config TARGET_P2771_0000 + bool "NVIDIA Tegra186 P2771-0000 board" + help + P2771-0000 is a P3310 CPU board married to a P2597 I/O board. The + combination contains SoC, DRAM, eMMC, SD card slot, HDMI, USB + micro-B port, Ethernet, USB3 host port, SATA, PCIe, and two GPIO + expansion headers. + endchoice
config SYS_SOC default "tegra186"
+source "board/nvidia/p2771-0000/Kconfig" + endif diff --git a/board/nvidia/p2771-0000/Kconfig b/board/nvidia/p2771-0000/Kconfig new file mode 100644 index 000000000000..1b1116f02098 --- /dev/null +++ b/board/nvidia/p2771-0000/Kconfig @@ -0,0 +1,16 @@ +# Copyright (c) 2016, NVIDIA CORPORATION. +# +# SPDX-License-Identifier: GPL-2.0 + +if TARGET_P2771_0000 + +config SYS_BOARD + default "p2771-0000" + +config SYS_VENDOR + default "nvidia" + +config SYS_CONFIG_NAME + default "p2771-0000" + +endif diff --git a/board/nvidia/p2771-0000/MAINTAINERS b/board/nvidia/p2771-0000/MAINTAINERS new file mode 100644 index 000000000000..4fc4ebd5e075 --- /dev/null +++ b/board/nvidia/p2771-0000/MAINTAINERS @@ -0,0 +1,6 @@ +P2771-0000 BOARD +M: Stephen Warren swarren@nvidia.com +S: Maintained +F: board/nvidia/p2771-0000/ +F: include/configs/p2771-0000.h +F: configs/p2771-0000_defconfig diff --git a/board/nvidia/p2771-0000/Makefile b/board/nvidia/p2771-0000/Makefile new file mode 100644 index 000000000000..b28a47d9078e --- /dev/null +++ b/board/nvidia/p2771-0000/Makefile @@ -0,0 +1,5 @@ +# Copyright (c) 2016, NVIDIA CORPORATION. +# +# SPDX-License-Identifier: GPL-2.0 + +obj-y += p2771-0000.o diff --git a/board/nvidia/p2771-0000/p2771-0000.c b/board/nvidia/p2771-0000/p2771-0000.c new file mode 100644 index 000000000000..4ba8ebc0dce8 --- /dev/null +++ b/board/nvidia/p2771-0000/p2771-0000.c @@ -0,0 +1,7 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> diff --git a/configs/p2771-0000_defconfig b/configs/p2771-0000_defconfig new file mode 100644 index 000000000000..9f2c418f9fe1 --- /dev/null +++ b/configs/p2771-0000_defconfig @@ -0,0 +1,31 @@ +CONFIG_ARM=y +CONFIG_TEGRA=y +CONFIG_TEGRA186=y +CONFIG_TARGET_P2771_0000=y +CONFIG_DEFAULT_DEVICE_TREE="tegra186-p2771-0000" +CONFIG_OF_SYSTEM_SETUP=y +CONFIG_HUSH_PARSER=y +CONFIG_SYS_PROMPT="Tegra186 (P2771-0000) # " +# CONFIG_CMD_IMI is not set +# CONFIG_CMD_IMLS is not set +# CONFIG_CMD_FLASH is not set +CONFIG_CMD_MMC=y +CONFIG_CMD_SF=y +CONFIG_CMD_SPI=y +CONFIG_CMD_I2C=y +CONFIG_CMD_USB=y +# CONFIG_CMD_FPGA is not set +CONFIG_CMD_GPIO=y +# CONFIG_CMD_SETEXPR is not set +CONFIG_CMD_DHCP=y +# CONFIG_CMD_NFS is not set +CONFIG_CMD_MII=y +CONFIG_CMD_PING=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_EXT4_WRITE=y +CONFIG_CMD_FAT=y +CONFIG_CMD_FS_GENERIC=y +CONFIG_SYS_NS16550=y +CONFIG_USB=y +CONFIG_DM_USB=y diff --git a/include/configs/p2771-0000.h b/include/configs/p2771-0000.h new file mode 100644 index 000000000000..257283f3b937 --- /dev/null +++ b/include/configs/p2771-0000.h @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2013-2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _P2771_0000_H +#define _P2771_0000_H + +#include <linux/sizes.h> + +#include "tegra186-common.h" + +/* High-level configuration options */ +#define CONFIG_TEGRA_BOARD_STRING "NVIDIA P2771-0000" + +/* SD/MMC */ +#define CONFIG_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_TEGRA_MMC + +/* Environment in eMMC, at the end of 2nd "boot sector" */ +#define CONFIG_ENV_IS_IN_MMC +#define CONFIG_SYS_MMC_ENV_DEV 0 +#define CONFIG_SYS_MMC_ENV_PART 2 +#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE) + +#include "tegra-common-post.h" + +/* Crystal is 38.4MHz. clk_m runs at half that rate */ +#define COUNTER_FREQUENCY 19200000 + +#endif
On 12 May 2016 at 13:32, Stephen Warren swarren@wwwdotorg.org wrote:
From: Stephen Warren swarren@nvidia.com
P2771-0000 is a P3310 CPU board married to a P2597 I/O board. The combination contains SoC, DRAM, eMMC, SD card slot, HDMI, USB micro-B port, Ethernet, USB3 host port, SATA, PCIe, and two GPIO expansion headers.
Currently, due to U-Boot's level of support for Tegra186, the only features supported by U-Boot are the console UART and the on-board eMMC. Additional features will be added over time.
U-Boot has so far been tested by replacing the kernel image on the device with a U-Boot binary. It is anticipated that U-Boot will eventually replace the CCPLEX bootloader binary, as on previous chips. This hasn't yet been tested.
Signed-off-by: Stephen Warren swarren@nvidia.com
arch/arm/dts/Makefile | 1 + arch/arm/dts/tegra186-p2771-0000.dts | 25 +++++++++++++++++++++++++ arch/arm/mach-tegra/tegra186/Kconfig | 10 ++++++++++ board/nvidia/p2771-0000/Kconfig | 16 ++++++++++++++++ board/nvidia/p2771-0000/MAINTAINERS | 6 ++++++ board/nvidia/p2771-0000/Makefile | 5 +++++ board/nvidia/p2771-0000/p2771-0000.c | 7 +++++++ configs/p2771-0000_defconfig | 31 +++++++++++++++++++++++++++++++ include/configs/p2771-0000.h | 33 +++++++++++++++++++++++++++++++++ 9 files changed, 134 insertions(+) create mode 100644 arch/arm/dts/tegra186-p2771-0000.dts create mode 100644 board/nvidia/p2771-0000/Kconfig create mode 100644 board/nvidia/p2771-0000/MAINTAINERS create mode 100644 board/nvidia/p2771-0000/Makefile create mode 100644 board/nvidia/p2771-0000/p2771-0000.c create mode 100644 configs/p2771-0000_defconfig create mode 100644 include/configs/p2771-0000.h
Reviewed-by: Simon Glass sjg@chromium.org
On 12 May 2016 at 13:32, Stephen Warren swarren@wwwdotorg.org wrote:
From: Stephen Warren swarren@nvidia.com
This adds the bare minimum code to support Tegra186, with UART and eMMC working.
The empty gpio.h is required because <asm/gpio.h> includes it. A future cleanup round may be able to solve this for all Tegra generations at once.
mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but instead to defer everything to mach-tegra/tegra186/Makefile. This allows the SoC code to pick-and-choose which of the C files in the "common" mach-tegra/ directory to compile in based on the SoC's needs. Most of the code is not valid for Tegra186, and this approach removes the need for mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach may be applied to all other Tegra SoCs in a future cleanup round.
board186.c is introduced to replace board.c and board2.c. These files currently contain a slew of SoC- and board-specific code that is not valid for Tegra186. This approach avoids adding yet more ifdefs to those files. A future cleanup round may refactor most of board*.c into board-/ SoC-specific functions files thus allowing the top-level functions like board_init_early_f to be shared again.
Signed-off-by: Stephen Warren swarren@nvidia.com
This patch series depends on the following at compile time:
- gpio: add Tegra186 GPIO driver
- mmc: tegra: add basic Tegra186 support
... and the following only at run time:
- dm: allow setting driver_data before/during bind
arch/arm/dts/tegra186.dtsi | 56 +++++++++++++++++++++++ arch/arm/include/asm/arch-tegra186/gpio.h | 10 +++++ arch/arm/include/asm/arch-tegra186/tegra.h | 16 +++++++ arch/arm/mach-tegra/Kconfig | 6 +++ arch/arm/mach-tegra/Makefile | 3 ++ arch/arm/mach-tegra/board186.c | 55 +++++++++++++++++++++++ arch/arm/mach-tegra/tegra186/Kconfig | 15 +++++++ arch/arm/mach-tegra/tegra186/Makefile | 8 ++++ include/configs/tegra186-common.h | 71 ++++++++++++++++++++++++++++++ 9 files changed, 240 insertions(+) create mode 100644 arch/arm/dts/tegra186.dtsi create mode 100644 arch/arm/include/asm/arch-tegra186/gpio.h create mode 100644 arch/arm/include/asm/arch-tegra186/tegra.h create mode 100644 arch/arm/mach-tegra/board186.c create mode 100644 arch/arm/mach-tegra/tegra186/Kconfig create mode 100644 arch/arm/mach-tegra/tegra186/Makefile create mode 100644 include/configs/tegra186-common.h
Reviewed-by: Simon Glass sjg@chromium.org
Strange use of floating point!
participants (2)
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Simon Glass -
Stephen Warren