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authorKyungmin Park <kmpark@infradead.org>2008-03-17 08:54:06 +0900
committerWolfgang Denk <wd@denx.de>2008-03-26 00:05:32 +0100
commit1bb707c39a0833e91d9f797dd862aaaaf4af264d (patch)
tree025e32303ffb6760c96aebbd769dac9c2a93ce46 /onenand_ipl
parentc512389cc4a10253249271ff6c887c6dab1f0db2 (diff)
downloadu-boot-linaro-stable-1bb707c39a0833e91d9f797dd862aaaaf4af264d.tar.gz
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 <kyungmin.park@samsung.com>
Diffstat (limited to 'onenand_ipl')
-rw-r--r--onenand_ipl/board/apollon/Makefile7
-rw-r--r--onenand_ipl/onenand_boot.c2
-rw-r--r--onenand_ipl/onenand_ipl.h3
-rw-r--r--onenand_ipl/onenand_read.c29
4 files changed, 26 insertions, 15 deletions
diff --git a/onenand_ipl/board/apollon/Makefile b/onenand_ipl/board/apollon/Makefile
index 66a0959ee..f10ed0229 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 f30deaeca..35668ac84 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 b9c6669a7..9188b9662 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 f55322023..669b1ef5f 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;