[U-Boot] [PATCH 2/6] nand: Add SPL_NAND support to mxc_nand_spl

Marek Vasut
2013-04-19T04:10:51Z

Add support for generic NAND SPL via the SPL framework into the
mxc_nand_spl driver. This is basically just a simple rename and
publication of the already implemented functions. To avoid the
old function which are used with the nand_spl/ stuff getting in
the way of NAND SPL framework, the macro CONFIG_SPL_NAND_LEGACY
was introduced and two remaining legacy boards were adjusted.
These board need to be either fixed or removed in the long run,
but I don't have either.

Also make sure the requested payload is aligned to full pages,
otherwise this simple driver fails to load the last page.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Beno?t Th?baudeau <benoit.thebaudeau@advansee.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
---
drivers/mtd/nand/mxc_nand_spl.c | 13 ++++++++++---
include/configs/mx31pdk.h | 1 +
include/configs/tx25.h | 1 +
3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/mxc_nand_spl.c b/drivers/mtd/nand/mxc_nand_spl.c
index 09f23c3..8ff03c9 100644
--- a/drivers/mtd/nand/mxc_nand_spl.c
+++ b/drivers/mtd/nand/mxc_nand_spl.c
@@ -290,7 +290,7 @@ static int is_badblock(int pagenumber)
return 0;
}

-static int nand_load(unsigned int from, unsigned int size, unsigned char *buf)
+int nand_spl_load_image(uint32_t from, unsigned int size, void *buf)
{
int i;
unsigned int page;
@@ -303,6 +303,7 @@ static int nand_load(unsigned int from, unsigned int size, unsigned char *buf)
page = from / CONFIG_SYS_NAND_PAGE_SIZE;
i = 0;

+ size = roundup(size, CONFIG_SYS_NAND_PAGE_SIZE);
while (i < size / CONFIG_SYS_NAND_PAGE_SIZE) {
if (nfc_read_page(page, buf) < 0)
return -1;
@@ -332,6 +333,7 @@ static int nand_load(unsigned int from, unsigned int size, unsigned char *buf)
return 0;
}

+#ifdef CONFIG_SPL_NAND_SUPPORT_LEGACY
/*
* The main entry for NAND booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image
@@ -345,8 +347,9 @@ void nand_boot(void)
* CONFIG_SYS_NAND_U_BOOT_OFFS and CONFIG_SYS_NAND_U_BOOT_SIZE must
* be aligned to full pages
*/
- if (!nand_load(CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE,
- (uchar *)CONFIG_SYS_NAND_U_BOOT_DST)) {
+ if (!nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+ CONFIG_SYS_NAND_U_BOOT_SIZE,
+ (uchar *)CONFIG_SYS_NAND_U_BOOT_DST)) {
/* Copy from NAND successful, start U-boot */
uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
uboot();
@@ -364,3 +367,7 @@ void hang(void)
/* Loop forever */
while (1) ;
}
+#endif
+
+void nand_init(void) {}
+void nand_deselect(void) {}
diff --git a/include/configs/mx31pdk.h b/include/configs/mx31pdk.h
index 1754595..217552e 100644
--- a/include/configs/mx31pdk.h
+++ b/include/configs/mx31pdk.h
@@ -50,6 +50,7 @@
#define CONFIG_SPL_LDSCRIPT "arch/$(ARCH)/cpu/u-boot-spl.lds"
#define CONFIG_SPL_MAX_SIZE 2048
#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT_LEGACY

#define CONFIG_SPL_TEXT_BASE 0x87dc0000
#define CONFIG_SYS_TEXT_BASE 0x87e00000
diff --git a/include/configs/tx25.h b/include/configs/tx25.h
index e72f8f6..7c362d0 100644
--- a/include/configs/tx25.h
+++ b/include/configs/tx25.h
@@ -37,6 +37,7 @@
#define CONFIG_SPL_LDSCRIPT "arch/$(ARCH)/cpu/u-boot-spl.lds"
#define CONFIG_SPL_MAX_SIZE 2048
#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT_LEGACY

#define CONFIG_SPL_TEXT_BASE 0x810c0000
#define CONFIG_SYS_TEXT_BASE 0x81200000
--
1.7.11.7