diff options
| author | Ye Li <ye.li@nxp.com> | 2022-08-08 13:46:21 +0800 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2022-08-17 17:26:14 +0800 |
| commit | 90307a0513dff053a1b18f97a6c7fb76fd0ee034 (patch) | |
| tree | 1edc384bc953bad8c74f180b4f7520ebca0ac55c /arch/arm | |
| parent | c3d1fa0d58c157351600ae736ee85192119c58d2 (diff) | |
LFU-382 imx93: Change hard coded MAC to read from fuse
The MAC addresses are hard coded for bring up. Change it to support
reading from fuse.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-imx/imx9/soc.c | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c index 2b3f52038c..1e004f8e1e 100644 --- a/arch/arm/mach-imx/imx9/soc.c +++ b/arch/arm/mach-imx/imx9/soc.c @@ -31,6 +31,7 @@ #include <asm/mach-imx/s400_api.h> #include <asm/mach-imx/optee.h> #include <linux/delay.h> +#include <fuse.h> DECLARE_GLOBAL_DATA_PTR; @@ -270,12 +271,48 @@ int dram_init(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) |