* [U-Boot-Users] [PATCH] Flex-OneNAND booting support (take #2)
@ 2008-03-16 23:54 Kyungmin Park
2008-03-25 23:05 ` Wolfgang Denk
0 siblings, 1 reply; 2+ messages in thread
From: Kyungmin Park @ 2008-03-16 23:54 UTC (permalink / raw)
To: u-boot
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 4fde699..a315705 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 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/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..669b1ef 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;
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot-Users] [PATCH] Flex-OneNAND booting support (take #2)
2008-03-16 23:54 [U-Boot-Users] [PATCH] Flex-OneNAND booting support (take #2) Kyungmin Park
@ 2008-03-25 23:05 ` Wolfgang Denk
0 siblings, 0 replies; 2+ messages in thread
From: Wolfgang Denk @ 2008-03-25 23:05 UTC (permalink / raw)
To: u-boot
In message <20080316235406.GA27517@party> you wrote:
> 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>
Applied, thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
There are two ways of constructing a software design. One way is to
make it so simple that there are obviously no deficiencies and the
other is to make it so complicated that there are no obvious defi-
ciencies. - Charles Anthony Richard Hoare
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