[U-Boot] [PATCH v2] sunxi: Serial number support, obtained from SID bits and passed through ATAG
Paul Kocialkowski
contact at paulk.fr
Sun Mar 22 11:42:01 CET 2015
Signed-off-by: Paul Kocialkowski <contact at paulk.fr>
---
board/sunxi/board.c | 51 +++++++++++++++++++++++++++++++++---------
include/configs/sunxi-common.h | 1 +
2 files changed, 41 insertions(+), 11 deletions(-)
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index e1891d1..d117558 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -241,24 +241,53 @@ static struct musb_hdrc_platform_data musb_plat = {
};
#endif
+#ifdef CONFIG_SERIAL_TAG
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+ char *serial_string = getenv("serial#");
+ unsigned long long serial;
+
+ if (serial_string) {
+ serial = simple_strtoull(serial_string, NULL, 16);
+
+ serialnr->high = (unsigned int) (serial >> 32);
+ serialnr->low = (unsigned int) (serial & 0xffffffff);
+ } else {
+ serialnr->high = 0;
+ serialnr->low = 0;
+ }
+}
+#endif
+
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
+ char serial_string[17] = { 0 };
unsigned int sid[4];
+ uint8_t mac_addr[6];
+ int ret;
+
+ ret = sunxi_get_sid(sid);
+ if (ret == 0 && sid[0] != 0 && sid[3] != 0) {
+ if (!getenv("ethaddr")) {
+ /* Non OUI / registered MAC address */
+ mac_addr[0] = 0x02;
+ mac_addr[1] = (sid[0] >> 0) & 0xff;
+ mac_addr[2] = (sid[3] >> 24) & 0xff;
+ mac_addr[3] = (sid[3] >> 16) & 0xff;
+ mac_addr[4] = (sid[3] >> 8) & 0xff;
+ mac_addr[5] = (sid[3] >> 0) & 0xff;
+
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ }
- if (!getenv("ethaddr") && sunxi_get_sid(sid) == 0 &&
- sid[0] != 0 && sid[3] != 0) {
- uint8_t mac_addr[6];
+ if (!getenv("serial#")) {
+ snprintf(serial_string, sizeof(serial_string),
+ "%08x%08x", sid[0], sid[3]);
- mac_addr[0] = 0x02; /* Non OUI / registered MAC address */
- mac_addr[1] = (sid[0] >> 0) & 0xff;
- mac_addr[2] = (sid[3] >> 24) & 0xff;
- mac_addr[3] = (sid[3] >> 16) & 0xff;
- mac_addr[4] = (sid[3] >> 8) & 0xff;
- mac_addr[5] = (sid[3] >> 0) & 0xff;
+ setenv("serial#", serial_string);
- eth_setenv_enetaddr("ethaddr", mac_addr);
- }
+ }
#if defined(CONFIG_MUSB_HOST) || defined(CONFIG_MUSB_GADGET)
musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE);
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 1f7a1cb..b9bb971 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -98,6 +98,7 @@
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_CMDLINE_TAG
#define CONFIG_INITRD_TAG
+#define CONFIG_SERIAL_TAG
/* mmc config */
#if !defined(CONFIG_UART0_PORT_F)
--
1.9.1
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