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 kyungmin.park@samsung.com --- diff --git a/Makefile b/Makefile index 9512b71..e9010b6 100644 --- a/Makefile +++ b/Makefile @@ -333,10 +333,12 @@ $(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 " ; \ @@ -2914,7 +2916,9 @@ clean: @rm -f $(obj)include/bmp_logo.h @rm -f $(obj)nand_spl/u-boot-spl $(obj)nand_spl/u-boot-spl.map @rm -f $(obj)onenand_ipl/onenand-ipl $(obj)onenand_ipl/onenand-ipl.bin \ - $(obj)onenand_ipl/onenand-ipl-2k.bin $(obj)onenand_ipl/onenand-ipl.map + $(obj)onenand_ipl/onenand-ipl-2k.bin \ + $(obj)onenand_ipl/onenand-ipl-4k.bin \ + $(obj)onenand_ipl/onenand-ipl.map @rm -f $(obj)api_examples/demo $(VERSION_FILE)

clobber: clean diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index d4003a2..3b828fb 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 66a0959..f10ed02 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/board/apollon/low_levelinit.S b/onenand_ipl/board/apollon/low_levelinit.S diff --git a/onenand_ipl/onenand_boot.c b/onenand_ipl/onenand_boot.c index f30deae..35668ac 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 b9c6669..9188b96 100644 --- a/onenand_ipl/onenand_ipl.h +++ b/onenand_ipl/onenand_ipl.h @@ -23,7 +23,6 @@

#include <linux/mtd/onenand_regs.h>

-#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 f553220..a0c4acf 100644 --- a/onenand_ipl/onenand_read.c +++ b/onenand_ipl/onenand_read.c @@ -33,8 +33,12 @@ #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 +50,15 @@ 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 +73,9 @@ 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 +91,22 @@ 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;