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changeset 407:f2cc551e597f

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fc-loadtool flash: beginning of Intel command set support
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Tue, 17 Jun 2014 01:39:59 +0000
parents 0b8e5072abde
children 431023033c86
files loadtools/flashops.c loadtools/flutil.c
diffstat 2 files changed, 87 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/loadtools/flashops.c	Tue Jun 17 00:53:07 2014 +0000
+++ b/loadtools/flashops.c	Tue Jun 17 01:39:59 2014 +0000
@@ -93,3 +93,90 @@
 	.loadagent_setbase_cmd	= "AMFB",
 	.loadagent_program_cmd	= "AMFW",
 };
+
+/* Intel flash functions */
+
+intel_reset_cmd(bi)
+	struct flash_bank_info *bi;
+{
+	if (do_w16(bi->base_addr, 0xFF)) {
+		fprintf(stderr,
+	"unexpected response to w16 when resetting flash to read mode!\n");
+		return(-1);
+	}
+	return(0);
+}
+
+intel_sector_unlock(bi, sp)
+	struct flash_bank_info *bi;
+	struct sector_info *sp;
+{
+	int stat;
+
+	stat = do_w16(bi->base_addr + sp->start, 0x60);
+	if (stat) {
+bad_w16:	fprintf(stderr,
+	"unexpected response to w16 in block unlock cmd sequence - aborting\n");
+		return(-1);
+	}
+	stat = do_w16(bi->base_addr + sp->start, 0xD0);
+	if (stat)
+		goto bad_w16;
+	return(0);
+}
+
+intel_sector_erase(bi, sp)
+	struct flash_bank_info *bi;
+	struct sector_info *sp;
+{
+	int stat;
+	uint16_t flstat;
+	time_t start_time, curtime;
+
+	stat = intel_sector_unlock(bi, sp);
+	if (stat)
+		return(stat);	/* error msg already printed */
+	/* clear SR */
+	stat = do_w16(bi->base_addr + sp->start, 0x50);
+	if (stat) {
+bad_w16:	fprintf(stderr,
+	"unexpected response to w16 in erase cmd sequence - aborting\n");
+		return(-1);
+	}
+	/* send the actual block erase command */
+	stat = do_w16(bi->base_addr + sp->start, 0x20);
+	if (stat)
+		goto bad_w16;
+	stat = do_w16(bi->base_addr + sp->start, 0xD0);
+	if (stat)
+		goto bad_w16;
+	/* wait for completion */
+	start_time = time(0);
+	for (;;) {
+		stat = do_r16(bi->base_addr + sp->start, &flstat);
+		if (stat)
+			return(stat);	/* error msg already printed */
+		if (flstat & 0x80)
+			break;
+		curtime = time(0);
+		if (curtime >= start_time + 20) {
+			fprintf(stderr, "erase timeout, aborting\n");
+			return(-1);
+		}
+	}
+	if (flstat & 0x20) {
+		fprintf(stderr, "block erase failed!\n");
+		return(-1);
+	} else
+		return(0);
+}
+
+struct flash_cmdset flash_cmdset_intel = {
+	.cmdset_name		= "Intel",
+	.reset_cmd		= intel_reset_cmd,
+	.status_cmd		= invalid,
+	.unlock_sector		= intel_sector_unlock,
+	.erase_sector		= intel_sector_erase,
+	.loadagent_setbase_cmd	= "INFB",
+	.loadagent_program_cmd	= "INFW",
+};
--- a/loadtools/flutil.c	Tue Jun 17 00:53:07 2014 +0000
+++ b/loadtools/flutil.c	Tue Jun 17 01:39:59 2014 +0000
@@ -79,11 +79,9 @@
 		case 2:
 			bi->ops = &flash_cmdset_amd;
 			break;
-#if 0
 		case 3:
 			bi->ops = &flash_cmdset_intel;
 			break;
-#endif
 		default:
 			fprintf(stderr, "error: command set %04X unsupported\n",
 				cmdset_id);