From: Ye Li ye.li@nxp.com
The MAC addresses are hard coded for bring up. Change it to support reading from fuse.
Reviewed-by: Jacky Bai ping.bai@nxp.com Signed-off-by: Ye Li ye.li@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com --- arch/arm/mach-imx/imx9/soc.c | 49 +++++++++++++++++++++++++++++++----- 1 file changed, 43 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c index a27262492e7..e4e9eca101e 100644 --- a/arch/arm/mach-imx/imx9/soc.c +++ b/arch/arm/mach-imx/imx9/soc.c @@ -30,6 +30,7 @@ #include <asm/arch-imx/cpu.h> #include <asm/mach-imx/s400_api.h> #include <linux/delay.h> +#include <fuse.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -336,12 +337,48 @@ phys_size_t get_effective_memsize(void)
void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) { - mac[0] = 0x1; - mac[1] = 0x2; - mac[2] = 0x3; - mac[3] = 0x4; - mac[4] = 0x5; - mac[5] = 0x6; + u32 val[2] = {}; + int ret; + + if (dev_id == 0) { + ret = fuse_read(39, 3, &val[0]); + if (ret) + goto err; + + ret = fuse_read(39, 4, &val[1]); + if (ret) + goto err; + + mac[0] = val[1] >> 8; + mac[1] = val[1]; + mac[2] = val[0] >> 24; + mac[3] = val[0] >> 16; + mac[4] = val[0] >> 8; + mac[5] = val[0]; + + } else { + ret = fuse_read(39, 5, &val[0]); + if (ret) + goto err; + + ret = fuse_read(39, 4, &val[1]); + if (ret) + goto err; + + mac[0] = val[1] >> 24; + mac[1] = val[1] >> 16; + mac[2] = val[0] >> 24; + mac[3] = val[0] >> 16; + mac[4] = val[0] >> 8; + mac[5] = val[0]; + } + + debug("%s: MAC%d: %02x.%02x.%02x.%02x.%02x.%02x\n", + __func__, dev_id, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + return; +err: + memset(mac, 0, 6); + printf("%s: fuse read err: %d\n", __func__, ret); }
int print_cpuinfo(void)