[U-Boot] [PATCHv4 4/7] spl: support loading from UBI volumes

[Heiko Schocher]

Hello Ladislav,

Am 17.01.2016 um 04:13 schrieb Ladislav Michl:
> Add support for loading from UBI volumes on the top of NAND.
>
> Signed-off-by: Ladislav Michl <ladis at linux-mips.org>
> ---
>   common/spl/Makefile  |  3 +++
>   common/spl/spl.c     |  4 ++++
>   common/spl/spl_ubi.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>   include/spl.h        |  4 ++++
>   4 files changed, 79 insertions(+)
>   create mode 100644 common/spl/spl_ubi.c

Reviewed-by: Heiko Schocher <hs at denx.de>

bye,
Heiko
>
> diff --git a/common/spl/Makefile b/common/spl/Makefile
> index 10a4589..36e5338 100644
> --- a/common/spl/Makefile
> +++ b/common/spl/Makefile
> @@ -12,8 +12,11 @@ ifdef CONFIG_SPL_BUILD
>   obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
>   obj-$(CONFIG_SPL_NOR_SUPPORT) += spl_nor.o
>   obj-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
> +ifndef CONFIG_SPL_UBI
>   obj-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
> +endif
>   obj-$(CONFIG_SPL_ONENAND_SUPPORT) += spl_onenand.o
> +obj-$(CONFIG_SPL_UBI) += spl_ubi.o
>   obj-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
>   obj-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
>   obj-$(CONFIG_SPL_USB_SUPPORT) += spl_usb.o
> diff --git a/common/spl/spl.c b/common/spl/spl.c
> index e5167bf..b945a48 100644
> --- a/common/spl/spl.c
> +++ b/common/spl/spl.c
> @@ -288,8 +288,12 @@ static int spl_load_image(u32 boot_device)
>   #endif
>   #ifdef CONFIG_SPL_NAND_SUPPORT
>   	case BOOT_DEVICE_NAND:
> +#ifdef CONFIG_SPL_UBI
> +		return spl_ubi_load_image(boot_device);
> +#else
>   		return spl_nand_load_image();
>   #endif
> +#endif
>   #ifdef CONFIG_SPL_ONENAND_SUPPORT
>   	case BOOT_DEVICE_ONENAND:
>   		return spl_onenand_load_image();
> diff --git a/common/spl/spl_ubi.c b/common/spl/spl_ubi.c
> new file mode 100644
> index 0000000..dd8ce36
> --- /dev/null
> +++ b/common/spl/spl_ubi.c
> @@ -0,0 +1,68 @@
> +/*
> + * Copyright (C) 2016
> + * Ladislav Michl <ladis at linux-mips.org>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <config.h>
> +#include <nand.h>
> +#include <ubispl.h>
> +#include <spl.h>
> +
> +int spl_ubi_load_image(u32 boot_device)
> +{
> +	int ret;
> +	struct image_header *header;
> +	struct ubispl_info info;
> +	struct ubispl_load volumes[2];
> +
> +#ifdef CONFIG_SPL_NAND_SUPPORT
> +	if (boot_device == BOOT_DEVICE_NAND)
> +		nand_init();
> +#endif
> +	info.ubi = (struct ubi_scan_info *) CONFIG_SPL_UBI_INFO_ADDR;
> +	info.fastmap = 1;
> +	info.read = nand_spl_read_block;
> +
> +	info.peb_offset = CONFIG_SPL_UBI_PEB_OFFSET;
> +	info.peb_size = CONFIG_SYS_NAND_BLOCK_SIZE;
> +	info.vid_offset = CONFIG_SPL_UBI_VID_OFFSET;
> +	info.leb_start = CONFIG_SPL_UBI_LEB_START;
> +	info.peb_count = CONFIG_SPL_UBI_MAX_PEBS - info.peb_offset;
> +
> +#ifdef CONFIG_SPL_OS_BOOT
> +	if (!spl_start_uboot()) {
> +		volumes[0].vol_id = CONFIG_SPL_UBI_LOAD_KERNEL_ID;
> +		volumes[0].load_addr = (void *)CONFIG_SYS_LOAD_ADDR;
> +		volumes[1].vol_id = CONFIG_SPL_UBI_LOAD_ARGS_ID;
> +		volumes[1].load_addr = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
> +
> +		ret = ubispl_load_volumes(&info, volumes, 2);
> +		if (!ret) {
> +			header = (struct image_header *) volumes[0].load_addr;
> +			spl_parse_image_header(header);
> +			puts("Linux loaded.\n");
> +			goto out;
> +		}
> +		puts("Loading Linux failed, falling back to U-Boot.\n");
> +	}
> +#endif
> +	header = (struct image_header *)
> +		(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
> +	volumes[0].vol_id = CONFIG_SPL_UBI_LOAD_MONITOR_ID;
> +	volumes[0].load_addr = (void *)header;
> +
> +	ret = ubispl_load_volumes(&info, volumes, 1);
> +	if (!ret)
> +		spl_parse_image_header(header);
> +#ifdef CONFIG_SPL_OS_BOOT
> +out:
> +#endif
> +#ifdef CONFIG_SPL_NAND_SUPPORT
> +	if (boot_device == BOOT_DEVICE_NAND)
> +		nand_deselect();
> +#endif
> +	return ret;
> +}
> diff --git a/include/spl.h b/include/spl.h
> index 92cdc04..1ab9295 100644
> --- a/include/spl.h
> +++ b/include/spl.h
> @@ -40,6 +40,7 @@ u32 spl_boot_mode(void);
>   void spl_set_header_raw_uboot(void);
>   void spl_parse_image_header(const struct image_header *header);
>   void spl_board_prepare_for_linux(void);
> +int spl_board_ubi_load_image(u32 boot_device);
>   void __noreturn jump_to_image_linux(void *arg);
>   int spl_start_uboot(void);
>   void spl_display_print(void);
> @@ -53,6 +54,9 @@ int spl_onenand_load_image(void);
>   /* NOR SPL functions */
>   int spl_nor_load_image(void);
>
> +/* UBI SPL functions */
> +int spl_ubi_load_image(u32 boot_device);
> +
>   /* MMC SPL functions */
>   int spl_mmc_load_image(u32 boot_device);
>
>

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