[Qemu-devel] [PATCH 03/12] Reset enable and reset memory commands support.

[marcin.krzeminski@nokia.com]

From: Marcin Krzeminski <marcin.krzeminski@nokia.com>

Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
---
 hw/block/m25p80.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index bcb66a5..5e07b57 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -231,6 +231,10 @@ typedef enum {
     ERASE_4K = 0x20,
     ERASE_32K = 0x52,
     ERASE_SECTOR = 0xd8,
+
+    RESET_ENABLE = 0x66,
+    RESET_MEMORY = 0x99,
+
 } FlashCMD;
 
 typedef enum {
@@ -258,6 +262,7 @@ typedef struct Flash {
     uint8_t cmd_in_progress;
     uint64_t cur_addr;
     bool write_enable;
+    bool reset_enable;
     bool initialized;
     uint8_t reset_pin;
 
@@ -441,6 +446,7 @@ static void reset_memory(Flash *s)
     s->pos = 0;
     s->state = STATE_IDLE;
     s->write_enable = false;
+    s->reset_enable = false;
 
     DB_PRINT_L(0, "Reset done.\n");
 }
@@ -554,6 +560,14 @@ static void decode_new_cmd(Flash *s, uint32_t value)
         break;
     case NOP:
         break;
+    case RESET_ENABLE:
+        s->reset_enable = true;
+        break;
+    case RESET_MEMORY:
+        if (s->reset_enable) {
+            reset_memory(s);
+        }
+        break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR, "M25P80: Unknown cmd %x\n", value);
         break;
@@ -696,6 +710,7 @@ static const VMStateDescription vmstate_m25p80 = {
         VMSTATE_UINT8(cmd_in_progress, Flash),
         VMSTATE_UINT64(cur_addr, Flash),
         VMSTATE_BOOL(write_enable, Flash),
+        VMSTATE_BOOL(reset_enable, Flash),
         VMSTATE_BOOL(initialized, Flash),
         VMSTATE_UINT8(reset_pin, Flash),
         VMSTATE_END_OF_LIST()
-- 
2.5.0