Implement imx_get_mac_from_fuse for i.MX8, this will be used by fec_mxc driver to get the mac address.
Signed-off-by: Peng Fan peng.fan@nxp.com --- arch/arm/mach-imx/imx8/cpu.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+)
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index fa32a9362c..2b58f510b4 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -79,6 +79,50 @@ int print_cpuinfo(void) } #endif
+#if defined(CONFIG_IMX8QXP) +#define FUSE_MAC0_WORD0 708 +#define FUSE_MAC0_WORD1 709 +#define FUSE_MAC1_WORD0 710 +#define FUSE_MAC1_WORD1 711 +#endif + +void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) +{ + sc_err_t err; + sc_ipc_t ipc; + u32 val1 = 0, val2 = 0; + u32 word1, word2; + + ipc = gd->arch.ipc_channel_handle; + + if (dev_id == 0) { + word1 = FUSE_MAC0_WORD0; + word2 = FUSE_MAC0_WORD1; + } else { + word1 = FUSE_MAC1_WORD0; + word2 = FUSE_MAC1_WORD1; + } + + err = sc_misc_otp_fuse_read(ipc, word1, &val1); + if (err != SC_ERR_NONE) { + printf("%s fuse %d read error: %d\n", __func__, word1, err); + return; + } + + err = sc_misc_otp_fuse_read(ipc, word2, &val2); + if (err != SC_ERR_NONE) { + printf("%s fuse %d read error: %d\n", __func__, word2, err); + return; + } + + mac[0] = val1; + mac[1] = val1 >> 8; + mac[2] = val1 >> 16; + mac[3] = val1 >> 24; + mac[4] = val2; + mac[5] = val2 >> 8; +} + int print_bootinfo(void) { enum boot_device bt_dev = get_boot_device();