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[Qemu-devel] [PATCH 03/12] Reset enable and reset memory commands suppor
From: |
marcin . krzeminski |
Subject: |
[Qemu-devel] [PATCH 03/12] Reset enable and reset memory commands support. |
Date: |
Wed, 16 Dec 2015 13:57:06 +0100 |
From: Marcin Krzeminski <address@hidden>
Signed-off-by: Marcin Krzeminski <address@hidden>
---
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