1 files changed, 114 insertions, 0 deletions
diff --git a/util/flashrom/sst_fwhub.c b/util/flashrom/sst_fwhub.c
new file mode 100644
index 0000000000..c064ed661b
--- /dev/null
+++ b/util/flashrom/sst_fwhub.c
@@ -0,0 +1,114 @@
+/*
+ * adapted from the Intel FW hub stuff for 82802ax parts. 
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Id$
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/io.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "flash.h"
+#include "jedec.h"
+#include "sst_fwhub.h"
+
+// I need that Berkeley bit-map printer
+void print_sst_fwhub_status(unsigned char status)
+{
+	printf("%s", status & 0x80 ? "Ready:" : "Busy:");
+	printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
+	printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
+	printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
+	printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
+	printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
+	printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
+}
+
+/* probe_jedec works fine for probing */
+int probe_sst_fwhub(struct flashchip *flash)
+{
+	volatile unsigned char *bios;
+	size_t size = flash->total_size * 1024;
+
+	if (probe_jedec(flash) == 0)
+		return 0;
+
+	bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
+		    flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
+	if (bios == MAP_FAILED) {
+		// it's this part but we can't map it ...
+		perror("Error MMAP /dev/mem");
+		exit(1);
+	}
+
+	flash->virt_addr_2 = bios;
+	return 1;
+}
+
+int erase_sst_fwhub_block(struct flashchip *flash, int offset)
+{
+	volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2;
+
+	// clear write protect
+	*(wrprotect) = 0;
+
+	erase_block_jedec(flash->virt_addr, offset);
+	toggle_ready_jedec(flash->virt_addr);
+
+	return (0);
+}
+
+int erase_sst_fwhub(struct flashchip *flash)
+{
+	int i;
+	unsigned int total_size = flash->total_size * 1024;
+
+	for (i = 0; i < total_size; i += flash->page_size)
+		erase_sst_fwhub_block(flash, i);
+	return (0);
+}
+
+int write_sst_fwhub(struct flashchip *flash, unsigned char *buf)
+{
+	int i;
+	int total_size = flash->total_size * 1024, page_size =
+	    flash->page_size;
+	volatile unsigned char *bios = flash->virt_addr;
+
+	erase_sst_fwhub(flash);
+	if (*bios != 0xff) {
+		printf("ERASE FAILED\n");
+		return -1;
+	}
+	printf("Programming Page: ");
+	for (i = 0; i < total_size / page_size; i++) {
+		printf("%04d at address: 0x%08x", i, i * page_size);
+		write_sector_jedec(bios, buf + i * page_size,
+				   bios + i * page_size, page_size);
+		printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+	return (0);
+}