Add support for generation of unique MAC address
that is derived from board serial.
Algorithm for generation of MAC taken from LK.
Signed-off-by: Ramon Fried <ramon.fr...@gmail.com>
---
arch/arm/mach-snapdragon/include/mach/misc.h | 1 +
arch/arm/mach-snapdragon/misc.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/arch/arm/mach-snapdragon/include/mach/misc.h
b/arch/arm/mach-snapdragon/include/mach/misc.h
index 5af6ae8da4..c60e3e4724 100644
--- a/arch/arm/mach-snapdragon/include/mach/misc.h
+++ b/arch/arm/mach-snapdragon/include/mach/misc.h
@@ -8,5 +8,6 @@
#define MISC_H
u32 msm_board_serial(void);
+void msm_generate_mac_addr(u8 *mac);
#endif
diff --git a/arch/arm/mach-snapdragon/misc.c b/arch/arm/mach-snapdragon/misc.c
index 678bd69f83..f6c87866c0 100644
--- a/arch/arm/mach-snapdragon/misc.c
+++ b/arch/arm/mach-snapdragon/misc.c
@@ -35,3 +35,19 @@ u32 msm_board_serial(void)
return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
}
+
+void msm_generate_mac_addr(u8 *mac)
+{
+ int i;
+ char sn[9];
+
+ snprintf(sn, 8, "%08x", msm_board_serial());
+
+ /* fill in the mac with serialno, use locally adminstrated pool */
+ mac[0] = 0x02;
+ mac[1] = 00;
+ for (i = 3; i >= 0; i--) {
+ mac[i + 2] = simple_strtoul(&sn[2 * i], NULL, 16);
+ sn[2 * i] = 0;
+ }
+}
--
2.18.0
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