From 6609916efb74724e53db368dd48bfb290d4d9f4c Mon Sep 17 00:00:00 2001 From: Po Liu Date: Fri, 10 Jan 2014 10:10:58 +0800 Subject: [PATCH] powerpc:mpc85xx: Add ifc nand boot support for TPL/SPL Using the TPL method for nand boot by sram was already supported. Here add some code for mpc85xx ifc nand boot. - For ifc, elbc, esdhc, espi, all need the SPL without section .resetvec. - Use a clear function name for nand spl boot. - Add CONFIG_SPL_DRIVERS_MISC_SUPPORT to compile the fsl_ifc.c in spl/Makefile; Signed-off-by: Po Liu Acked-by: Scott Wood Reviewed-by: York Sun --- arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 15 ++++++++------- doc/README.SPL | 1 + drivers/mtd/nand/fsl_ifc_spl.c | 31 ++++++++++++++++++++++++------- spl/Makefile | 1 + 4 files changed, 34 insertions(+), 14 deletions(-) diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds index bc13267..acaa093 100644 --- a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds +++ b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds @@ -57,7 +57,14 @@ SECTIONS . = ALIGN(8); __init_begin = .; __init_end = .; -/* FIXME for non-NAND SPL */ + +/* For ifc, elbc, esdhc, espi, all need the SPL without section .resetvec */ +#ifdef CONFIG_SYS_MPC85XX_NO_RESETVEC + .bootpg ADDR(.text) - 0x1000 : + { + KEEP(*(.bootpg)) + } :text = 0xffff +#else #if defined(CONFIG_FSL_IFC) /* Restrict bootpg at 4K boundry for IFC */ .bootpg ADDR(.text) + 0x1000 : { @@ -69,12 +76,6 @@ SECTIONS #else #error unknown NAND controller #endif -#ifdef CONFIG_SYS_MPC85XX_NO_RESETVEC - .bootpg ADDR(.text) - 0x1000 : - { - KEEP(*(.bootpg)) - } :text = 0xffff -#else .resetvec ADDR(.text) + RESET_VECTOR_OFFSET : { KEEP(*(.resetvec)) } = 0xffff diff --git a/doc/README.SPL b/doc/README.SPL index 312a6a6..b1bc3ca 100644 --- a/doc/README.SPL +++ b/doc/README.SPL @@ -62,6 +62,7 @@ CONFIG_SPL_FAT_SUPPORT (fs/fat/libfat.o) CONFIG_SPL_LIBGENERIC_SUPPORT (lib/libgeneric.o) CONFIG_SPL_POWER_SUPPORT (drivers/power/libpower.o) CONFIG_SPL_NAND_SUPPORT (drivers/mtd/nand/libnand.o) +CONFIG_SPL_DRIVERS_MISC_SUPPORT (drivers/misc) CONFIG_SPL_DMA_SUPPORT (drivers/dma/libdma.o) CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o) CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o) diff --git a/drivers/mtd/nand/fsl_ifc_spl.c b/drivers/mtd/nand/fsl_ifc_spl.c index 9de327b..6b43496 100644 --- a/drivers/mtd/nand/fsl_ifc_spl.c +++ b/drivers/mtd/nand/fsl_ifc_spl.c @@ -88,7 +88,11 @@ static inline int bad_block(uchar *marker, int port_size) return __raw_readw((u16 *)marker) != 0xffff; } -static void nand_load(unsigned int offs, int uboot_size, uchar *dst) +#ifdef CONFIG_TPL_BUILD +int nand_spl_load_image(uint32_t offs, unsigned int uboot_size, void *vdst) +#else +static int nand_load(uint32_t offs, unsigned int uboot_size, void *vdst) +#endif { struct fsl_ifc *ifc = IFC_BASE_ADDR; uchar *buf = (uchar *)CONFIG_SYS_NAND_BASE; @@ -105,6 +109,7 @@ static void nand_load(unsigned int offs, int uboot_size, uchar *dst) int sram_addr; int pg_no; + uchar *dst = vdst; /* Get NAND Flash configuration */ csor = CONFIG_SYS_NAND_CSOR; @@ -208,9 +213,20 @@ static void nand_load(unsigned int offs, int uboot_size, uchar *dst) offs += page_size; } while ((offs & (blk_size - 1)) && (pos < uboot_size)); } + + return 0; } /* + * Defines a static function nand_load_image() here, because non-static makes + * the code too large for certain SPLs(minimal SPL, maximum size <= 4Kbytes) + */ +#ifndef CONFIG_TPL_BUILD +#define nand_spl_load_image(offs, uboot_size, vdst) \ + nand_load(offs, uboot_size, vdst) +#endif + +/* * Main entrypoint for NAND Boot. It's necessary that SDRAM is already * configured and available since this code loads the main U-boot image * from NAND into SDRAM and starts from there. @@ -221,16 +237,17 @@ void nand_boot(void) /* * Load U-Boot image from NAND into RAM */ - nand_load(CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE, - (uchar *)CONFIG_SYS_NAND_U_BOOT_DST); + nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, + CONFIG_SYS_NAND_U_BOOT_SIZE, + (uchar *)CONFIG_SYS_NAND_U_BOOT_DST); #ifdef CONFIG_NAND_ENV_DST - nand_load(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, - (uchar *)CONFIG_NAND_ENV_DST); + nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, + (uchar *)CONFIG_NAND_ENV_DST); #ifdef CONFIG_ENV_OFFSET_REDUND - nand_load(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE, - (uchar *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE); + nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE, + (uchar *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE); #endif #endif /* diff --git a/spl/Makefile b/spl/Makefile index 5e5472d..ceb425b 100644 --- a/spl/Makefile +++ b/spl/Makefile @@ -72,6 +72,7 @@ LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \ drivers/power/pmic/ LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/ +LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/ LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/ LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/ LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ -- 2.7.4