[PATCH u-boot-sunxi] sunxi: use random parts of SID to set ethaddr

[Jonathan Liu]

Signed-off-by: Jonathan Liu <net...@gmail.com>
---
board/sunxi/board.c | 28 ++++++++++++++++++++++++++++
include/configs/sunxi-common.h | 2 ++
2 files changed, 30 insertions(+)

diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 6c362a3..0db46b0 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -22,9 +22,12 @@
#include <axp221.h>
#endif
#include <asm/arch/clock.h>
+#include <asm/arch/cpu.h>
#include <asm/arch/dram.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
+#include <asm/io.h>
+#include <net.h>

DECLARE_GLOBAL_DATA_PTR;

@@ -213,3 +216,28 @@ void spl_display_print(void)
printf("Board: %s\n", CONFIG_SYS_BOARD_NAME);
}
#endif
+
+#ifdef CONFIG_MISC_INIT_R
+int misc_init_r(void)
+{
+ if (!getenv("ethaddr")) {
+ uint32_t reg_val = readl(SUNXI_SID_BASE);
+
+ if (reg_val) {
+ uint8_t mac_addr[6];
+
+ mac_addr[0] = 0x02; /* Non OUI / registered MAC address */
+ mac_addr[1] = (reg_val >> 0) & 0xff;
+ reg_val = readl(SUNXI_SID_BASE + 0x0c);
+ mac_addr[2] = (reg_val >> 24) & 0xff;
+ mac_addr[3] = (reg_val >> 16) & 0xff;
+ mac_addr[4] = (reg_val >> 8) & 0xff;
+ mac_addr[5] = (reg_val >> 0) & 0xff;
+
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ }
+ }
+
+ return 0;
+}
+#endif
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index e11c4ee..948a49d 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -419,6 +419,8 @@
#define CONFIG_ENV_IS_NOWHERE
#endif

+#define CONFIG_MISC_INIT_R
+
#ifndef CONFIG_SPL_BUILD
#include <config_distro_defaults.h>
#endif
--
1.9.3

[Jonathan Liu]

Bump. Any comments or suggestions?

Regards,
Jonathan

[Hans de Goede]

Hi,

I've looking into this on my todo list, hopefully I'll get around to it today
or tomorrow.

Many thanks for writing this patch!

Regards,

Hans

[Rajesh Mallah]

Dear Jonathan,

thanks for finding the time to patch it , it shall be immensely helpful.

We use mele-M3 netbooting  to a thinclient OS. we do not have to

hardcode the macs in the uEnv.txt anymore.

regds

mallah.

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[Hans de Goede]

Hi,

On 05/27/2014 12:54 PM, Jonathan Liu wrote:
> Signed-off-by: Jonathan Liu <net...@gmail.com>

Thanks, applied. Note I've expanded the commit message a bit,
to hopefully make review of this patch for upstream u-boot
go more smooth, see:
https://github.com/linux-sunxi/u-boot-sunxi/commit/4af825f11fbdac9e9c5560b2532474da6203cb53

Regards,

Hans