nx823: get mac address from environment

The environment is the canonical storage location of the mac address, so
we're killing off the global data location and moving everything to
querying the env directly.

For the nx823, the serial number is moved out of load_sernum_ethaddr() and
into misc_init_r() as is the env setup.  This lets us kill off the former
function in the process.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>

2 files changed, 19 insertions, 27 deletions

diff --git a/board/nx823/flash.c b/board/nx823/flash.c
index 194d841..336e704 100644
--- a/board/nx823/flash.c
+++ b/board/nx823/flash.c
@@ -27,8 +27,9 @@
 #include <common.h>
 #include <mpc8xx.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
-extern u_long  *my_sernum;		/* from nx823.c */
 
 /*-----------------------------------------------------------------------
  * Protection Flags:
@@ -346,7 +347,7 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 	if (addr >= CONFIG_SYS_FLASH_SN_SECTOR && addr < CONFIG_SYS_FLASH_SN_BASE)
 	{
 		u_long dest = CONFIG_SYS_FLASH_SN_BASE;
-		u_short *sn = (u_short *)my_sernum;
+		u_short *sn = (u_short *)gd->bd->bi_sernum;
 
 		printf("(saving sernum)");
 		for (i=0; i<4; i++)
diff --git a/board/nx823/nx823.c b/board/nx823/nx823.c
index df9aaab..6ec29dc 100644
--- a/board/nx823/nx823.c
+++ b/board/nx823/nx823.c
@@ -360,39 +360,30 @@ static long int dram_size (long int mamr_value, long int *base,
 	return (get_ram_size (base, maxsize));
 }
 
-u_long *my_sernum;
-
 int misc_init_r (void)
 {
+	int i;
 	char tmp[50];
-	u_char *e = gd->bd->bi_enetaddr;
+	uchar ethaddr[6];
+	bd_t *bd = gd->bd;
+	ulong my_sernum = bd->bi_sernum;
 
-	/* save serial numbre from flash (uniquely programmed) */
-	my_sernum = malloc (8);
-	memcpy (my_sernum, gd->bd->bi_sernum, 8);
+	/* load unique serial number */
+	for (i = 0; i < 8; ++i)
+		bd->bi_sernum[i] = *(u_char *) (CONFIG_SYS_FLASH_SN_BASE + i);
 
 	/* save env variables according to sernum */
 	sprintf (tmp, "%08lx%08lx", my_sernum[0], my_sernum[1]);
 	setenv ("serial#", tmp);
 
-	sprintf (tmp, "%02x:%02x:%02x:%02x:%02x:%02x", e[0], e[1], e[2], e[3],
-		 e[4], e[5]);
-	setenv ("ethaddr", tmp);
-	return (0);
-}
-
-void load_sernum_ethaddr (void)
-{
-	int i;
-	bd_t *bd = gd->bd;
-
-	for (i = 0; i < 8; i++) {
-		bd->bi_sernum[i] = *(u_char *) (CONFIG_SYS_FLASH_SN_BASE + i);
+	if (!eth_getenv_enetaddr("ethaddr", ethaddr)) {
+		ethaddr[0] = 0x10;
+		ethaddr[1] = 0x20;
+		ethaddr[2] = 0x30;
+		ethaddr[3] = bd->bi_sernum[1] << 4 | bd->bi_sernum[2];
+		ethaddr[4] = bd->bi_sernum[5];
+		ethaddr[5] = bd->bi_sernum[6];
 	}
-	bd->bi_enetaddr[0] = 0x10;
-	bd->bi_enetaddr[1] = 0x20;
-	bd->bi_enetaddr[2] = 0x30;
-	bd->bi_enetaddr[3] = bd->bi_sernum[1] << 4 | bd->bi_sernum[2];
-	bd->bi_enetaddr[4] = bd->bi_sernum[5];
-	bd->bi_enetaddr[5] = bd->bi_sernum[6];
+
+	return 0;
 }