[U-Boot] [PATCH v3 7/8] ARM64: hikey: hi6220: Add u-boot support for the 96boards CE HiKey board.

[Sjoerd Simons]

On Wed, 2015-07-29 at 22:39 +0100, Peter Griffin wrote:
> HiKey is the first 96boards consumer edition compliant board. It 
> features a hi6220
> SoC which has eight ARM A53 cpu's.
> 
> This initial port adds support for: -
> 1) Serial
> 2) eMMC / SD card
> 3) USB
> 4) GPIO
> 
> It has been tested with Arm Trusted Firmware running u-boot as the 
> BL33 executable.
> 
> Notes:
> 
> eMMC has been tested with basic reading of eMMC partition into DDR. I 
> have not
> tested writing / erasing. Due to lack of clock control it won't be
> running in the most performant high speed mode.
> 
> SD card slot has been tested for reading and booting kernels into 
> DDR.
> It is also currently configured to save the u-boot environment to the
> SD card.
> 
> USB has been tested with ASIX networking adapter to tftpboot kernels
> into DDR. On v2015.07-rc2 dhcp now works, and also USB mass storage
> are correctly enumerated.
> 
> GPIO has been tested using gpio toggle GPIO4_1-3 to flash the LEDs.
> 
> Basic SoC datasheet can be found here: -
> https://github.com/96boards/documentation/blob/master/hikey/
> Hi6220V100_Multi-Mode_Application_Processor_Function_Description.pdf
> 
> Board schematic can be found here: -
> https://github.com/96boards/documentation/blob/master/hikey/
> 96Boards-Hikey-Rev-A1.pdf
> 
> Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
> -
> diff --git a/include/configs/hikey.h b/include/configs/hikey.h
> new file mode 100644
> index 0000000..6bb0b7d
> --- /dev/null
> +++ b/include/configs/hikey.h
> @@ -0,0 +1,159 @@
> 
> +/* SD/MMC configuration */
> +#define CONFIG_GENERIC_MMC
> +#define CONFIG_MMC
> +#define CONFIG_DWMMC
> +#define CONFIG_HIKEY_DWMMC
> +#define CONFIG_BOUNCE_BUFFER
> +#define CONFIG_CMD_MMC
> +
> +#define CONFIG_FS_EXT4

> +
> +/* Command line configuration */
> +#define CONFIG_MENU
> +#define CONFIG_CMD_CACHE
> +#define CONFIG_CMD_UNZIP
> +#define CONFIG_CMD_ENV
> +
> +#define CONFIG_MTD_PARTITIONS
> +
> +/* BOOTP options */
> +#define CONFIG_BOOTP_BOOTFILESIZE
> +
> +#include <config_distro_defaults.h>
> +
> +/* Initial environment variables */
> +
> +/*
> + * Defines where the kernel and FDT will be put in RAM
> + */
> +
> +#define CONFIG_EXTRA_ENV_SETTINGS	\
> +				"kernel_name=Image\0"	\
> +				"kernel_addr_r=0x00080000\0" \
> +				"fdt_name=hi6220-hikey.dtb\0" \
> +				"fdt_addr_r=0x02000000\0" \
> +				"fdt_high=0xffffffffffffffff\0" \
> +				"initrd_high=0xffffffffffffffff\0" \
> +
> +/* Assume we boot with root on the seventh partition of eMMC */
> +#define CONFIG_BOOTARGS	"console=ttyAMA0,115200n8 
> root=/dev/mmcblk0p9 rw"
> +
> +/* Copy the kernel and FDT to DRAM memory and boot */
> +#define CONFIG_BOOTCOMMAND	"usb start; dhcp;" \
> +				"tftp $kernel_addr_r $kernel_name;" 
> \
> +				"tftp $fdt_addr_r $fdt_name;" \
> +				"booti $kernel_addr_r - $fdt_addr_r"

Why not use config_distro_bootcmd.h to get a somewhat standard boot
sequence rather then hardcoding a tftp boot and a rootfs on a specific
mmc partition?


> +#define CONFIG_BOOTDELAY		2

This redefines the default in config_distro_defaults

> +
> +/* Preserve enviroment on sd card */
> +#define CONFIG_COMMAND_HISTORY
> +
> +#define CONFIG_ENV_SIZE			0x1000
> +#define CONFIG_ENV_IS_IN_FAT
> +#define FAT_ENV_INTERFACE               "mmc"
> +#define FAT_ENV_DEVICE_AND_PART         "1:1"
> +#define FAT_ENV_FILE                    "uboot.env"
> +#define CONFIG_FAT_WRITE
> +#define CONFIG_ENV_VARS_UBOOT_CONFIG
> +
> +/* Monitor Command Prompt */
> +#define CONFIG_SYS_CBSIZE		512	/* Console I/O 
> Buffer Size */
> +#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
> +					sizeof(CONFIG_SYS_PROMPT) + 
> 16)
> +#define CONFIG_SYS_HUSH_PARSER
> +#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_CMDLINE_EDITING
> +#define CONFIG_SYS_MAXARGS		64	/* max command args 
> */
> +
> +#define CONFIG_SYS_NO_FLASH
> +
> +#endif /* __HIKEY_H */

-- 
Sjoerd Simons <sjoerd.simons at collabora.co.uk>
Collabora Ltd.