From 1f4bb37d6bcae59b18a2438f3cdca6545a831ab5 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Sun, 27 Jul 2003 00:21:01 +0000
Subject: * Patch by Scott McNutt, 21 Jul 2003:   Add support for LynuxWorks
 Kernel Downloadable Images (KDIs).   Both LynxOS and BlueCat linux KDIs are
 supported.

* Patch by Richard Woodruff, 25 Jul 2003:
  use more reliable reset for OMAP/925T

* Patch by Nye Liu, 25 Jul 2003:
  fix typo in mpc8xx.h

* Patch by Richard Woodruff, 24 Jul 2003:
  Fixes for cmd_nand.c:
  - Fixed null dereferece which could result in incorrect ECC values.
  - Added support for devices with no Ready/Busy signal hooked up.
  - Added OMAP1510 read/write protect handling.
  - Fixed nand.h's ECCPOS. A conflict existed with POS5 and badblock
    for non-JFFS2.
  - Switched default ECC to be JFFS2.
---
 common/lynxkdi.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 common/lynxkdi.c

(limited to 'common/lynxkdi.c')

diff --git a/common/lynxkdi.c b/common/lynxkdi.c
new file mode 100644
index 000000000..95df9554f
--- /dev/null
+++ b/common/lynxkdi.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) Orbacom Systems, Inc <www.orbacom.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are freely
+ * permitted provided that the above copyright notice and this
+ * paragraph and the following disclaimer are duplicated in all
+ * such forms.
+ *
+ * This software is provided "AS IS" and without any express or
+ * implied warranties, including, without limitation, the implied
+ * warranties of merchantability and fitness for a particular
+ * purpose.
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <image.h>
+
+#if defined(CONFIG_LYNXKDI)
+#include <lynxkdi.h>
+
+#if defined(CONFIG_MPC8260)
+void lynxkdi_boot ( image_header_t *hdr )
+{
+	void (*lynxkdi)(void) = (void(*)(void))hdr->ih_ep;
+	lynxos_bootparms_t *parms = (lynxos_bootparms_t *)0x0020;
+	bd_t *kbd;
+	DECLARE_GLOBAL_DATA_PTR;
+	u32 *psz = (u32 *)(hdr->ih_load + 0x0204);
+
+	memset( parms, 0, sizeof(*parms));
+	kbd = gd->bd;
+	parms->clock_ref = kbd->bi_busfreq;
+	parms->dramsz = kbd->bi_memsize;
+	memcpy(parms->ethaddr, kbd->bi_enetaddr, 6);
+	mtspr(SPRN_SPRG2, 0x0020);
+
+	/* Do a simple check for Bluecat so we can pass the
+	 * kernel command line parameters.
+	 */
+	if( le32_to_cpu(*psz) == hdr->ih_size ){
+	    char *args;
+	    char *cmdline = (char *)(hdr->ih_load + 0x020c);
+	    int len;
+
+	    printf("Booting Bluecat KDI ...\n");
+	    udelay(200*1000); /* Allow serial port to flush */
+	    if ((args = getenv("bootargs")) == NULL)
+		    args = "";
+	    /* Prepend the cmdline */
+	    len = strlen(args);
+	    if( len && (len + strlen(cmdline) + 2 < (0x0400 - 0x020c))) {
+		memmove( cmdline + strlen(args) + 1, cmdline, strlen(cmdline) );
+		strcpy( cmdline, args );
+		cmdline[len] = ' ';
+	    }
+	}
+	else {
+	    printf("Booting LynxOS KDI ...\n");
+	}
+
+	lynxkdi();
+}
+#else
+#error "Lynx KDI support not implemented for configured CPU"
+#endif
+
+#endif	/* CONFIG_LYNXKDI */
+
-- 
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