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path: root/board/rsk7203/rsk7203.c
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-rw-r--r--board/rsk7203/rsk7203.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/board/rsk7203/rsk7203.c b/board/rsk7203/rsk7203.c
index beb943e..2cbd45e 100644
--- a/board/rsk7203/rsk7203.c
+++ b/board/rsk7203/rsk7203.c
@@ -39,12 +39,33 @@ int dram_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
- gd->bd->bi_memstart = CFG_SDRAM_BASE;
- gd->bd->bi_memsize = CFG_SDRAM_SIZE;
- printf("DRAM: %dMB\n", CFG_SDRAM_SIZE / (1024 * 1024));
+ gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+ gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+ printf("DRAM: %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
return 0;
}
void led_set_state(unsigned short value)
{
}
+
+/*
+ * The RSK board has the SMSC9118 wired up 'incorrectly'.
+ * Byte-swapping is necessary, and so poor performance is inevitable.
+ * This problem cannot evade by the swap function of CHIP, this can
+ * evade by software Byte-swapping.
+ * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
+ * functions necessary to solve this problem.
+ */
+u32 pkt_data_pull(u32 addr)
+{
+ volatile u16 *addr_16 = (u16 *)addr;
+ return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
+ | swab16(*(addr_16 + 1));
+}
+
+void pkt_data_push(u32 addr, u32 val)
+{
+ *(volatile u16 *)(addr + 2) = swab16((u16)val);
+ *(volatile u16 *)(addr) = swab16((u16)(val >> 16));
+}