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authorStefan Reinauer <stepan@openbios.org>2005-11-24 10:45:34 +0000
committerStefan Reinauer <stepan@openbios.org>2005-11-24 10:45:34 +0000
commit7d5c7a7f1794cf846f2b62813c81f0f2a0ac5b54 (patch)
tree3ea89e5f20c249f3c0c8f31408577d3141214d3a /util/flashrom/sst_fwhub.c
parente0e137844adc8366de58514b10ed962da46ce77b (diff)
rename the directory to match the program name
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2102 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/flashrom/sst_fwhub.c')
-rw-r--r--util/flashrom/sst_fwhub.c114
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);
+}