[U-Boot] [PATCH v4 2/2] sunxi: Pass serial number through ATAG

[Paul Kocialkowski]

Signed-off-by: Paul Kocialkowski <contact at paulk.fr>
---
 board/sunxi/board.c            | 20 ++++++++++++++++++++
 include/configs/sunxi-common.h |  1 +
 2 files changed, 21 insertions(+)

diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 79516bf..d1b3c5e 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -369,6 +369,26 @@ int g_dnl_board_usb_cable_connected(void)
 }
 #endif
 
+#ifdef CONFIG_SERIAL_TAG
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+	char *serial_string;
+	unsigned long long serial;
+
+	serial_string = getenv("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)
 {
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