enable to boot only a raw u-boot.bin image from nand with the CONFIG_SPL_NAND_RAW_ONLY define. This option saves space on boards where spl space is low.
Signed-off-by: Heiko Schocher hs@denx.de Reviewed-by: Andreas Bießmann andreas.devel@googlemail.com Reviewed-by: Bo Shen voice.shen@atmel.com
--- on the siemens taurus board, this option saved 0x14d bytes
Changes in v3: add Reviewed-by from Bo Shen
Changes in v2: add Reviewed-by: Andreas Bießmann andreas.devel@googlemail.com
README | 4 ++++ common/spl/spl.c | 15 ++++++++++----- common/spl/spl_nand.c | 13 +++++++++++++ include/spl.h | 1 + 4 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/README b/README index 7b5538e..a34902b 100644 --- a/README +++ b/README @@ -3605,6 +3605,10 @@ FIT uImage format: Support for the MTD subsystem within SPL. Useful for environment on NAND support within SPL.
+ CONFIG_SPL_NAND_RAW_ONLY + Support to boot only raw u-boot.bin images. Use this only + if you need to save space. + CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT Set for the SPL on PPC mpc8xxx targets, support for drivers/ddr/fsl/libddr.o in SPL binary. diff --git a/common/spl/spl.c b/common/spl/spl.c index d85bab3..f01a21c 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -62,6 +62,15 @@ __weak void spl_board_prepare_for_linux(void) /* Nothing to do! */ }
+void spl_set_header_raw_uboot(void) +{ + spl_image.size = CONFIG_SYS_MONITOR_LEN; + spl_image.entry_point = CONFIG_SYS_UBOOT_START; + spl_image.load_addr = CONFIG_SYS_TEXT_BASE; + spl_image.os = IH_OS_U_BOOT; + spl_image.name = "U-Boot"; +} + void spl_parse_image_header(const struct image_header *header) { u32 header_size = sizeof(struct image_header); @@ -93,11 +102,7 @@ void spl_parse_image_header(const struct image_header *header) /* Signature not found - assume u-boot.bin */ debug("mkimage signature not found - ih_magic = %x\n", header->ih_magic); - spl_image.size = CONFIG_SYS_MONITOR_LEN; - spl_image.entry_point = CONFIG_SYS_UBOOT_START; - spl_image.load_addr = CONFIG_SYS_TEXT_BASE; - spl_image.os = IH_OS_U_BOOT; - spl_image.name = "U-Boot"; + spl_set_header_raw_uboot(); } }
diff --git a/common/spl/spl_nand.c b/common/spl/spl_nand.c index 9b200bc..b7801cb 100644 --- a/common/spl/spl_nand.c +++ b/common/spl/spl_nand.c @@ -10,6 +10,18 @@ #include <asm/io.h> #include <nand.h>
+#if defined(CONFIG_SPL_NAND_RAW_ONLY) +void spl_nand_load_image(void) +{ + nand_init(); + + nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, + CONFIG_SYS_NAND_U_BOOT_SIZE, + (void *)CONFIG_SYS_NAND_U_BOOT_DST); + spl_set_header_raw_uboot(); + nand_deselect(); +} +#else void spl_nand_load_image(void) { struct image_header *header; @@ -82,3 +94,4 @@ void spl_nand_load_image(void) spl_image.size, (void *)spl_image.load_addr); nand_deselect(); } +#endif diff --git a/include/spl.h b/include/spl.h index 16b3566..b2e5bf7 100644 --- a/include/spl.h +++ b/include/spl.h @@ -35,6 +35,7 @@ extern struct spl_image_info spl_image; void preloader_console_init(void); u32 spl_boot_device(void); 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); void __noreturn jump_to_image_linux(void *arg);