Hi Anatolij, > -----Original Message----- > From: Anatolij Gustschin [mailto:ag...@denx.de] > Sent: 2018年10月18日 20:28 > To: u-boot@lists.denx.de; Peng Fan <peng....@nxp.com>; sba...@denx.de > Subject: [PATCH v6 20/34] imx8: cpu: add function for reading FEC MAC from > fuse > > FEC driver requires imx_get_mac_from_fuse(). Add it in preparation for ENETx > support. > > Signed-off-by: Anatolij Gustschin <ag...@denx.de> > Cc: Stefano Babic <sba...@denx.de> > --- > arch/arm/mach-imx/imx8/cpu.c | 38 > ++++++++++++++++++++++++++++++++++++ > 1 file changed, 38 insertions(+) > > diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c > index d80b4b175d..da34a94a23 100644 > --- a/arch/arm/mach-imx/imx8/cpu.c > +++ b/arch/arm/mach-imx/imx8/cpu.c > @@ -543,3 +543,41 @@ u64 get_page_table_size(void) > return size; > } > #endif > + > +#define FUSE_MAC0_WORD0 708 > +#define FUSE_MAC0_WORD1 709 > +#define FUSE_MAC1_WORD0 710 > +#define FUSE_MAC1_WORD1 711 > + > +void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) { > + u32 word[2], val[2] = {}; > + int i, ret; > + > + if (dev_id == 0) { > + word[0] = FUSE_MAC0_WORD0; > + word[1] = FUSE_MAC0_WORD1; > + } else { > + word[0] = FUSE_MAC1_WORD0; > + word[1] = FUSE_MAC1_WORD1; > + } > + > + for (i = 0; i < 2; i++) { > + ret = sc_misc_otp_fuse_read(-1, word[i], &val[i]); > + if (ret < 0) > + goto err; > + } > + > + mac[0] = val[0]; > + mac[1] = val[0] >> 8; > + mac[2] = val[0] >> 16; > + mac[3] = val[0] >> 24; > + mac[4] = val[1]; > + mac[5] = val[1] >> 8; > + > + 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: > + printf("%s: fuse %d, err: %d\n", __func__, word[i], ret); }
Reviewed-by: Peng Fan <peng....@nxp.com> Thanks, Peng. > -- > 2.17.1 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
