[05/13] hw/block/pflash_cfi02: Add an enum to define the write cycles
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Message ID 20190505221544.31568-6-philmd@redhat.com
State New
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Series
  • hw/block/pflash_cfi02: Clean-up and fixes
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Commit Message

Philippe Mathieu-Daudé May 5, 2019, 10:15 p.m. UTC
No change in functionality is intended with this commit.

Signed-off-by: Stephen Checkoway <stephen.checkoway@oberlin.edu>
Message-Id: <20190426162624.55977-3-stephen.checkoway@oberlin.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[PMD: Extracted from bigger patch]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/block/pflash_cfi02.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Patch
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diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index f88e09cebaa..b27796d74d2 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -56,6 +56,11 @@  do {                                                       \
 
 #define PFLASH_LAZY_ROMD_THRESHOLD 42
 
+/* Special write cycles for CFI queries. */
+enum {
+    WCYCLE_CFI          = 7,
+};
+
 struct PFlashCFI02 {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -293,7 +298,7 @@  static void pflash_write(PFlashCFI02 *pfl, hwaddr offset,
         if (boff == 0x55 && cmd == 0x98) {
         enter_CFI_mode:
             /* Enter CFI query mode */
-            pfl->wcycle = 7;
+            pfl->wcycle = WCYCLE_CFI;
             pfl->cmd = 0x98;
             return;
         }
@@ -465,7 +470,7 @@  static void pflash_write(PFlashCFI02 *pfl, hwaddr offset,
             goto reset_flash;
         }
         break;
-    case 7: /* Special value for CFI queries */
+    case WCYCLE_CFI: /* Special value for CFI queries */
         DPRINTF("%s: invalid write in CFI query mode\n", __func__);
         goto reset_flash;
     default: