diff mbox series

[PATCH-for-4.1,v6,4/5] hw/block/pflash_cfi01: Rename 'reset_flash' label as 'mode_read_array'

Message ID 20190716221555.11145-5-philmd@redhat.com (mailing list archive)
State New, archived
Headers show
Series hw/block/pflash_cfi01: Add DeviceReset() handler | expand

Commit Message

Philippe Mathieu-Daudé July 16, 2019, 10:15 p.m. UTC 
Rename the 'reset_flash' as 'mode_read_array' to make explicit we
do not reset the device, we simply set its internal state machine
in the READ_ARRAY mode. We do not reset the status register error
bits, as a device reset would do.

Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
v6: split of from previous patch to ease review
    dropped Laszlo's Regression-tested-by tag
---
 hw/block/pflash_cfi01.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index a28d0f8cc7..65afdbf3a7 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -460,7 +460,7 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
         /* read mode */
         switch (cmd) {
         case 0x00: /* This model reset value for READ_ARRAY (not CFI) */
-            goto reset_flash;
+            goto mode_read_array;
         case 0x10: /* Single Byte Program */
         case 0x40: /* Single Byte Program */
             DPRINTF("%s: Single Byte Program\n", __func__);
@@ -483,7 +483,7 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
         case 0x50: /* Clear status bits */
             DPRINTF("%s: Clear status bits\n", __func__);
             pfl->status = 0x0;
-            goto reset_flash;
+            goto mode_read_array;
         case 0x60: /* Block (un)lock */
             DPRINTF("%s: Block unlock\n", __func__);
             break;
@@ -508,10 +508,10 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
             break;
         case 0xf0: /* Probe for AMD flash */
             DPRINTF("%s: Probe for AMD flash\n", __func__);
-            goto reset_flash;
-        case 0xff: /* Read array mode */
+            goto mode_read_array;
+        case 0xff: /* Read Array */
             DPRINTF("%s: Read array mode\n", __func__);
-            goto reset_flash;
+            goto mode_read_array;
         default:
             goto error_flash;
         }
@@ -537,8 +537,8 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
             if (cmd == 0xd0) { /* confirm */
                 pfl->wcycle = 0;
                 pfl->status |= 0x80;
-            } else if (cmd == 0xff) { /* read array mode */
-                goto reset_flash;
+            } else if (cmd == 0xff) { /* Read Array */
+                goto mode_read_array;
             } else
                 goto error_flash;
 
@@ -564,16 +564,16 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
             } else if (cmd == 0x01) {
                 pfl->wcycle = 0;
                 pfl->status |= 0x80;
-            } else if (cmd == 0xff) {
-                goto reset_flash;
+            } else if (cmd == 0xff) { /* Read Array */
+                goto mode_read_array;
             } else {
                 DPRINTF("%s: Unknown (un)locking command\n", __func__);
-                goto reset_flash;
+                goto mode_read_array;
             }
             break;
         case 0x98:
-            if (cmd == 0xff) {
-                goto reset_flash;
+            if (cmd == 0xff) { /* Read Array */
+                goto mode_read_array;
             } else {
                 DPRINTF("%s: leaving query mode\n", __func__);
             }
@@ -633,7 +633,7 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
                     " the data is already written to storage!\n"
                     "Flash device reset into READ mode.\n",
                     __func__);
-                goto reset_flash;
+                goto mode_read_array;
             }
             break;
         default:
@@ -643,7 +643,7 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
     default:
         /* Should never happen */
         DPRINTF("%s: invalid write state\n",  __func__);
-        goto reset_flash;
+        goto mode_read_array;
     }
     return;
 
@@ -652,7 +652,7 @@  static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
                   "(offset " TARGET_FMT_plx ", wcycle 0x%x cmd 0x%x value 0x%x)"
                   "\n", __func__, offset, pfl->wcycle, pfl->cmd, value);
 
- reset_flash:
+ mode_read_array:
     pflash_mode_read_array(pfl);
 }