From 1bb707c39a0833e91d9f797dd862aaaaf4af264d Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Mon, 17 Mar 2008 08:54:06 +0900 Subject: [PATCH] Add Flex-OneNAND booting support Flex-OneNAND is a monolithic integrated circuit with a NAND Flash array using a NOR Flash interface. This on-chip integration enables system designers to reduce external system logic and use high-density NAND Flash in applications that would otherwise have to use more NOR components. Flex-OneNAND enables users to configure to partition it into SLC and MLC areas in more flexible way. While MLC area of Flex-OneNAND can be used to store data that require low reliability and high density, SLC area of Flex-OneNAND to store data that need high reliability and high performance. Flex-OneNAND can let users take advantage of storing these two different types of data into one chip, which is making Flex-OneNAND more cost- and space-effective. Signed-off-by: Kyungmin Park --- Makefile | 6 ++++-- drivers/mtd/onenand/onenand_base.c | 6 ++++++ onenand_ipl/board/apollon/Makefile | 7 +++++-- onenand_ipl/onenand_boot.c | 2 +- onenand_ipl/onenand_ipl.h | 3 +-- onenand_ipl/onenand_read.c | 29 +++++++++++++++++++---------- 6 files changed, 36 insertions(+), 17 deletions(-) diff --git a/Makefile b/Makefile index 065ce905db..4796f45fc6 100644 --- a/Makefile +++ b/Makefile @@ -339,10 +339,12 @@ $(U_BOOT_NAND): $(NAND_SPL) $(obj)u-boot.bin $(obj)include/autoconf.mk cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin $(ONENAND_IPL): $(VERSION_FILE) $(obj)include/autoconf.mk - $(MAKE) -C onenand_ipl/board/$(BOARDDIR) all + $(MAKE) -C $(obj)onenand_ipl/board/$(BOARDDIR) all $(U_BOOT_ONENAND): $(ONENAND_IPL) $(obj)u-boot.bin $(obj)include/autoconf.mk + $(MAKE) -C $(obj)onenand_ipl/board/$(BOARDDIR) all cat $(obj)onenand_ipl/onenand-ipl-2k.bin $(obj)u-boot.bin > $(obj)u-boot-onenand.bin + cat $(obj)onenand_ipl/onenand-ipl-4k.bin $(obj)u-boot.bin > $(obj)u-boot-flexonenand.bin $(VERSION_FILE): @( echo -n "#define U_BOOT_VERSION \"U-Boot " ; \ @@ -2873,7 +2875,7 @@ clean: $(obj)board/{integratorap,integratorcp}/u-boot.lds \ $(obj)board/{bf533-ezkit,bf533-stamp,bf537-stamp,bf561-ezkit}/u-boot.lds @rm -f $(obj)include/bmp_logo.h $(obj)nand_spl/{u-boot-spl,u-boot-spl.map} - @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl.map} + @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl-4k.bin,ipl.map} @rm -f $(obj)api_examples/demo $(VERSION_FILE) @find $(OBJTREE) -type f \ \( -name 'core' -o -name '*.bak' -o -name '*~' \ diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index d4003a20f2..3b828fb627 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1180,6 +1180,12 @@ static int onenand_probe(struct mtd_info *mtd) if (maf_id != bram_maf_id || dev_id != bram_dev_id) return -ENXIO; + /* FIXME : Current OneNAND MTD doesn't support Flex-OneNAND */ + if (dev_id & (1 << 9)) { + printk("Not yet support Flex-OneNAND\n"); + return -ENXIO; + } + /* Flash device information */ onenand_print_device_info(dev_id, 0); this->device_id = dev_id; diff --git a/onenand_ipl/board/apollon/Makefile b/onenand_ipl/board/apollon/Makefile index 66a0959ee2..f10ed02292 100644 --- a/onenand_ipl/board/apollon/Makefile +++ b/onenand_ipl/board/apollon/Makefile @@ -9,7 +9,7 @@ AFLAGS += -DCONFIG_ONENAND_IPL CFLAGS += -DCONFIG_ONENAND_IPL OBJCLFAGS += --gap-fill=0x00 -SOBJS = start.o low_levelinit.o # _memcpy32.o +SOBJS = start.o low_levelinit.o COBJS = apollon.o onenand_read.o onenand_boot.o SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c)) @@ -19,13 +19,16 @@ LNDIR := $(OBJTREE)/onenand_ipl/board/$(BOARDDIR) onenandobj := $(OBJTREE)/onenand_ipl/ -ALL = $(onenandobj)onenand-ipl $(onenandobj)onenand-ipl.bin $(onenandobj)onenand-ipl-2k.bin +ALL = $(onenandobj)onenand-ipl $(onenandobj)onenand-ipl.bin $(onenandobj)onenand-ipl-2k.bin $(onenandobj)onenand-ipl-4k.bin all: $(obj).depend $(ALL) $(onenandobj)onenand-ipl-2k.bin: $(onenandobj)onenand-ipl $(OBJCOPY) ${OBJCFLAGS} --pad-to=0x800 -O binary $< $@ +$(onenandobj)onenand-ipl-4k.bin: $(onenandobj)onenand-ipl + $(OBJCOPY) ${OBJCFLAGS} --pad-to=0x1000 -O binary $< $@ + $(onenandobj)onenand-ipl.bin: $(onenandobj)onenand-ipl $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ diff --git a/onenand_ipl/onenand_boot.c b/onenand_ipl/onenand_boot.c index f30deaeca7..35668ac84f 100644 --- a/onenand_ipl/onenand_boot.c +++ b/onenand_ipl/onenand_boot.c @@ -60,7 +60,7 @@ void start_oneboot(void) buf = (uchar *) CFG_LOAD_ADDR; - if (!onenand_read_block(buf, ONENAND_START_BLOCK)) + if (!onenand_read_block0(buf)) buf += ONENAND_BLOCK_SIZE; if (buf == (uchar *)CFG_LOAD_ADDR) diff --git a/onenand_ipl/onenand_ipl.h b/onenand_ipl/onenand_ipl.h index b9c6669a7b..9188b96625 100644 --- a/onenand_ipl/onenand_ipl.h +++ b/onenand_ipl/onenand_ipl.h @@ -23,7 +23,6 @@ #include -#define ONENAND_START_BLOCK 0 #define ONENAND_BLOCK_SIZE 2048 #ifndef CFG_PRINTF @@ -40,5 +39,5 @@ #define ONENAND_PAGE_SIZE 2048 -extern int onenand_read_block(unsigned char *buf, ulong block); +extern int onenand_read_block0(unsigned char *buf); #endif diff --git a/onenand_ipl/onenand_read.c b/onenand_ipl/onenand_read.c index f553220237..669b1ef5fa 100644 --- a/onenand_ipl/onenand_read.c +++ b/onenand_ipl/onenand_read.c @@ -33,8 +33,13 @@ #define onenand_buffer_address() ((1 << 3) << 8) #define onenand_bufferram_address(block) (0) +#ifdef __HAVE_ARCH_MEMCPY32 +extern void *memcpy32(void *dest, void *src, int size); +#endif + /* read a page with ECC */ -static inline int onenand_read_page(ulong block, ulong page, u_char *buf) +static inline int onenand_read_page(ulong block, ulong page, + u_char * buf, int pagesize) { unsigned long *base; @@ -46,15 +51,15 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf) onenand_writew(onenand_block_address(block), THIS_ONENAND(ONENAND_REG_START_ADDRESS1)); + onenand_writew(onenand_bufferram_address(block), + THIS_ONENAND(ONENAND_REG_START_ADDRESS2)); + onenand_writew(onenand_sector_address(page), THIS_ONENAND(ONENAND_REG_START_ADDRESS8)); onenand_writew(onenand_buffer_address(), THIS_ONENAND(ONENAND_REG_START_BUFFER)); - onenand_writew(onenand_bufferram_address(block), - THIS_ONENAND(ONENAND_REG_START_ADDRESS2)); - onenand_writew(ONENAND_INT_CLEAR, THIS_ONENAND(ONENAND_REG_INTERRUPT)); onenand_writew(ONENAND_CMD_READ, THIS_ONENAND(ONENAND_REG_COMMAND)); @@ -69,9 +74,9 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf) #ifdef __HAVE_ARCH_MEMCPY32 /* 32 bytes boundary memory copy */ - memcpy32(buf, base, ONENAND_PAGE_SIZE); + memcpy32(buf, base, pagesize); #else - for (offset = 0; offset < (ONENAND_PAGE_SIZE >> 2); offset++) { + for (offset = 0; offset < (pagesize >> 2); offset++) { value = *(base + offset); *p++ = value; } @@ -87,18 +92,22 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf) * onenand_read_block - Read a block data to buf * @return 0 on success */ -int onenand_read_block(unsigned char *buf, ulong block) +int onenand_read_block0(unsigned char *buf) { int page, offset = 0; + int pagesize = ONENAND_PAGE_SIZE; + + /* MLC OneNAND has 4KiB page size */ + if (onenand_readw(THIS_ONENAND(ONENAND_REG_TECHNOLOGY))) + pagesize <<= 1; /* NOTE: you must read page from page 1 of block 0 */ /* read the block page by page*/ for (page = ONENAND_START_PAGE; page < ONENAND_PAGES_PER_BLOCK; page++) { - onenand_read_page(block, page, buf + offset); - - offset += ONENAND_PAGE_SIZE; + onenand_read_page(0, page, buf + offset, pagesize); + offset += pagesize; } return 0; -- 2.30.2