[U-Boot] [PATCH] OneNAND: S5PC100 OneNAND IPL support
Kyungmin Park
kmpark at infradead.org
Tue Jul 21 02:55:44 CEST 2009
S5PC100 has own OneNAND controller and has different interface.
OneNAND IPL use it to S5PC100 board.
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
diff --git a/onenand_ipl/onenand_ipl.h b/onenand_ipl/onenand_ipl.h
index 412572a..b43ddfb 100644
--- a/onenand_ipl/onenand_ipl.h
+++ b/onenand_ipl/onenand_ipl.h
@@ -31,5 +31,14 @@
#define READ_INTERRUPT() \
onenand_readw(THIS_ONENAND(ONENAND_REG_INTERRUPT))
+#ifdef CONFIG_S5PC1XX
+#define AHB_ADDR 0xB0000000
+#define MEM_ADDR(fba, fpa, fsa) ((fba) << 13 | (fpa) << 7 | (fsa) << 5)
+#define CMD_MAP_01(mem_addr) (AHB_ADDR | (1 << 26) | (mem_addr))
+#define CMD_MAP_11(addr) (AHB_ADDR | (3 << 26) | ((addr) << 2))
+#undef onenand_readw
+#define onenand_readw(a) (readl(CMD_MAP_11((a) >> 1)) & 0xffff)
+#endif
+
extern int onenand_read_block(unsigned char *buf);
#endif
diff --git a/onenand_ipl/onenand_read.c b/onenand_ipl/onenand_read.c
index d1a842d..7ffc9a9 100644
--- a/onenand_ipl/onenand_read.c
+++ b/onenand_ipl/onenand_read.c
@@ -37,6 +37,23 @@
extern void *memcpy32(void *dest, void *src, int size);
#endif
+#ifdef CONFIG_S5PC1XX
+static inline int onenand_read_page(ulong block, ulong page,
+ u_char * buf, int pagesize)
+{
+ unsigned int *p = (unsigned int *) buf;
+ int mem_addr, i;
+
+ mem_addr = MEM_ADDR(block, page, 0);
+
+ pagesize >>= 2;
+
+ for (i = 0; i < pagesize; i++)
+ *p++ = readl(CMD_MAP_01(mem_addr));
+
+ return 0;
+}
+#else
/* read a page with ECC */
static inline int onenand_read_page(ulong block, ulong page,
u_char * buf, int pagesize)
@@ -88,6 +105,7 @@ static inline int onenand_read_page(ulong block, ulong page,
return 0;
}
+#endif
#define ONENAND_START_PAGE 1
#define ONENAND_PAGES_PER_BLOCK 64
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