[U-Boot-Users] [PATCH] support for CONFIG_SERIAL_TAG on ARM boards

19 May 2005

Hi,
please consider this:
* Patch by Steven Scholz, 19 May 2005:
    Add support for CONFIG_SERIAL_TAG on ARM baords
If someone wants to pass the board's serial number to the ARM linux kernel 
using the ATAG_SERIAL mechanism, all she has to do is
#define CONFIG_REVISION_TAG
in the board config file and implement a trivial, board specific
#ifdef CONFIG_SERIAL_TAG
void get_board_serial(struct tag_serialnr *serialnr)
{
    serialnr->low = (u32) sernum;
    serialnr->high= (u32) 0;
}
#endif
Same goes for CONFIG_REVISION_TAG.
Thanks a million!
-- 
Steven Scholz
imc Measurement & Control


Index: u-boot/lib_arm/armlinux.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/lib_arm/armlinux.c,v
retrieving revision 1.16
diff -u -r1.16 armlinux.c

--- u-boot/lib_arm/armlinux.c	12 Jan 2005 00:15:17 -0000	1.16
+++ u-boot/lib_arm/armlinux.c	19 May 2005 14:12:07 -0000
@@ -377,15 +377,30 @@
 }
 #endif /* CONFIG_VFD || CONFIG_LCD */

+#ifdef CONFIG_SERIAL_TAG
+void setup_serial_tag (struct tag **tmp)
+{
+	struct tag *params = *tmp;
+	struct tag_serialnr serialnr;
+	void get_board_serial(struct tag_serialnr *serialnr);
+
+	get_board_serial(&serialnr);
+	params->hdr.tag = ATAG_SERIAL;
+	params->hdr.size = tag_size (tag_serialnr);
+	params->u.serialnr.low = serialnr.low;
+	params->u.serialnr.high= serialnr.high;
+	params = tag_next (params);
+	*tmp = params;
+}
+#endif
+
 #ifdef CONFIG_REVISION_TAG
 void setup_revision_tag(struct tag **in_params)
 {
    u32 rev = 0;
-#ifdef CONFIG_OMAP2420H4
    u32 get_board_rev(void);

    rev = get_board_rev();
-#endif
    params->hdr.tag = ATAG_REVISION;
    params->hdr.size = tag_size (tag_revision);
    params->u.revision.rev = rev;

    

Steven Scholz

Wolfgang Denk

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