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[Qemu-devel] [5904] pflash_cfi01: add Single Byte Program ( Jean-Christo
From: |
Andrzej Zaborowski |
Subject: |
[Qemu-devel] [5904] pflash_cfi01: add Single Byte Program ( Jean-Christophe PLAGNIOL-VILLARD). |
Date: |
Sun, 07 Dec 2008 12:36:31 +0000 |
Revision: 5904
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5904
Author: balrog
Date: 2008-12-07 12:36:28 +0000 (Sun, 07 Dec 2008)
Log Message:
-----------
pflash_cfi01: add Single Byte Program (Jean-Christophe PLAGNIOL-VILLARD).
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <address@hidden>
Signed-off-by: Andrzej Zaborowski <address@hidden>
Modified Paths:
--------------
trunk/hw/pflash_cfi01.c
Modified: trunk/hw/pflash_cfi01.c
===================================================================
--- trunk/hw/pflash_cfi01.c 2008-12-07 03:12:54 UTC (rev 5903)
+++ trunk/hw/pflash_cfi01.c 2008-12-07 12:36:28 UTC (rev 5904)
@@ -194,6 +194,47 @@
}
}
+static void inline pflash_data_write(pflash_t *pfl, target_ulong offset,
+ uint32_t value, int width)
+{
+ uint8_t *p = pfl->storage;
+
+ DPRINTF("%s: block write offset " TARGET_FMT_lx
+ " value %x counter " TARGET_FMT_lx "\n",
+ __func__, offset, value, pfl->counter);
+ switch (width) {
+ case 1:
+ p[offset] = value;
+ pflash_update(pfl, offset, 1);
+ break;
+ case 2:
+#if defined(TARGET_WORDS_BIGENDIAN)
+ p[offset] = value >> 8;
+ p[offset + 1] = value;
+#else
+ p[offset] = value;
+ p[offset + 1] = value >> 8;
+#endif
+ pflash_update(pfl, offset, 2);
+ break;
+ case 4:
+#if defined(TARGET_WORDS_BIGENDIAN)
+ p[offset] = value >> 24;
+ p[offset + 1] = value >> 16;
+ p[offset + 2] = value >> 8;
+ p[offset + 3] = value;
+#else
+ p[offset] = value;
+ p[offset + 1] = value >> 8;
+ p[offset + 2] = value >> 16;
+ p[offset + 3] = value >> 24;
+#endif
+ pflash_update(pfl, offset, 4);
+ break;
+ }
+
+}
+
static void pflash_write (pflash_t *pfl, target_ulong offset, uint32_t value,
int width)
{
@@ -221,6 +262,10 @@
switch (cmd) {
case 0x00: /* ??? */
goto reset_flash;
+ case 0x10: /* Single Byte Program */
+ case 0x40: /* Single Byte Program */
+ DPRINTF(stderr, "%s: Single Byte Program\n", __func__);
+ break;
case 0x20: /* Block erase */
p = pfl->storage;
offset &= ~(pfl->sector_len - 1);
@@ -262,6 +307,13 @@
return;
case 1:
switch (pfl->cmd) {
+ case 0x10: /* Single Byte Program */
+ case 0x40: /* Single Byte Program */
+ DPRINTF("%s: Single Byte Program\n", __func__);
+ pflash_data_write(pfl, offset, value, width);
+ pfl->status |= 0x80; /* Ready! */
+ pfl->wcycle = 0;
+ break;
case 0x20: /* Block erase */
case 0x28:
if (cmd == 0xd0) { /* confirm */
@@ -306,40 +358,7 @@
case 2:
switch (pfl->cmd) {
case 0xe8: /* Block write */
- p = pfl->storage;
- DPRINTF("%s: block write offset " TARGET_FMT_lx
- " value %x counter " TARGET_FMT_lx "\n",
- __func__, offset, value, pfl->counter);
- switch (width) {
- case 1:
- p[offset] = value;
- pflash_update(pfl, offset, 1);
- break;
- case 2:
-#if defined(TARGET_WORDS_BIGENDIAN)
- p[offset] = value >> 8;
- p[offset + 1] = value;
-#else
- p[offset] = value;
- p[offset + 1] = value >> 8;
-#endif
- pflash_update(pfl, offset, 2);
- break;
- case 4:
-#if defined(TARGET_WORDS_BIGENDIAN)
- p[offset] = value >> 24;
- p[offset + 1] = value >> 16;
- p[offset + 2] = value >> 8;
- p[offset + 3] = value;
-#else
- p[offset] = value;
- p[offset + 1] = value >> 8;
- p[offset + 2] = value >> 16;
- p[offset + 3] = value >> 24;
-#endif
- pflash_update(pfl, offset, 4);
- break;
- }
+ pflash_data_write(pfl, offset, value, width);
pfl->status |= 0x80;
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