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From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Max Filippov" <jcmvbkbc@gmail.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
	qemu-block@nongnu.org, "Aleksandar Rikalo" <arikalo@wavecomp.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Laszlo Ersek" <lersek@redhat.com>,
	"David Gibson" <david@gibson.dropbear.id.au>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	qemu-arm@nongnu.org, "Alistair Francis" <alistair23@gmail.com>,
	"John Snow" <jsnow@redhat.com>,
	"Richard Henderson" <rth@twiddle.net>,
	"Kevin Wolf" <kwolf@redhat.com>, "Max Reitz" <mreitz@redhat.com>,
	"Michael Walle" <michael@walle.cc>,
	qemu-ppc@nongnu.org, "Wei Yang" <richardw.yang@linux.intel.com>,
	"Aleksandar Markovic" <amarkovic@wavecomp.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Aurelien Jarno" <aurelien@aurel32.net>
Subject: [Qemu-devel] [PATCH v2 7/9] hw/block/pflash_cfi01: Improve command comments
Date: Tue,  2 Jul 2019 02:12:59 +0200	[thread overview]
Message-ID: <20190702001301.4768-8-philmd@redhat.com> (raw)
In-Reply-To: <20190702001301.4768-1-philmd@redhat.com>

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/block/pflash_cfi01.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index c1b02219b2..f50d0a9d37 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -208,11 +208,11 @@ static uint32_t pflash_devid_query(PFlashCFI01 *pfl, hwaddr offset)
      * Offsets 2/3 are block lock status, is not emulated.
      */
     switch (boff & 0xFF) {
-    case 0:
+    case 0: /* Manufacturer ID */
         resp = pfl->ident0;
         trace_pflash_manufacturer_id(resp);
         break;
-    case 1:
+    case 1: /* Device ID */
         resp = pfl->ident1;
         trace_pflash_device_id(resp);
         break;
@@ -456,11 +456,11 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
     case 0:
         /* read mode */
         switch (cmd) {
-        case 0x10: /* Single Byte Program */
-        case 0x40: /* Single Byte Program */
+        case 0x10: /* Single Byte Program (setup) */
+        case 0x40: /* Single Byte Program (setup) [Intel] */
             DPRINTF("%s: Single Byte Program\n", __func__);
             break;
-        case 0x20: /* Block erase */
+        case 0x20: /* Block erase (setup) */
             p = pfl->storage;
             offset &= ~(pfl->sector_len - 1);
 
@@ -516,8 +516,8 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
         break;
     case 1:
         switch (pfl->cmd) {
-        case 0x10: /* Single Byte Program */
-        case 0x40: /* Single Byte Program */
+        case 0x10: /* Single Byte Program (confirm) */
+        case 0x40: /* Single Byte Program (confirm) [Intel] */
             DPRINTF("%s: Single Byte Program\n", __func__);
             if (!pfl->ro) {
                 pflash_data_write(pfl, offset, value, width, be);
@@ -528,7 +528,7 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
             pfl->status |= 0x80; /* Ready! */
             pfl->wcycle = 0;
         break;
-        case 0x20: /* Block erase */
+        case 0x20: /* Block erase (confirm) */
         case 0x28:
             if (cmd == 0xd0) { /* confirm */
                 pfl->wcycle = 0;
-- 
2.20.1



  parent reply	other threads:[~2019-07-02  2:55 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-02  0:12 [Qemu-devel] [PATCH v2 0/9] hw/block/pflash_cfi01: Add DeviceReset() handler Philippe Mathieu-Daudé
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 1/9] hw/block/pflash_cfi01: Removed an unused timer Philippe Mathieu-Daudé
2019-07-02 15:58   ` Alistair Francis
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 2/9] hw/block/pflash_cfi01: Use the correct READ_ARRAY value Philippe Mathieu-Daudé
2019-07-02  2:54   ` John Snow
2019-07-02 15:59   ` Alistair Francis
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 3/9] hw/block/pflash_cfi01: Extract pflash_mode_read_array() Philippe Mathieu-Daudé
2019-07-02  3:01   ` John Snow
2019-07-02 16:01   ` Alistair Francis
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 4/9] hw/block/pflash_cfi01: Start state machine as READY to accept commands Philippe Mathieu-Daudé
2019-07-02  3:04   ` John Snow
2019-07-02 16:02   ` Alistair Francis
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 5/9] hw/block/pflash_cfi01: Add the DeviceReset() handler Philippe Mathieu-Daudé
2019-07-02  3:16   ` John Snow
2019-07-02  9:23     ` Peter Maydell
2019-07-02  9:37       ` Philippe Mathieu-Daudé
2019-07-02 14:32         ` Laszlo Ersek
2019-07-02 12:30       ` John Snow
2019-07-02 12:14     ` Laszlo Ersek
2019-07-02  0:12 ` [Qemu-devel] [PATCH v2 6/9] hw/block/pflash_cfi01: Simplify CFI_QUERY processing Philippe Mathieu-Daudé
2019-07-02 16:03   ` Alistair Francis
2019-07-02  0:12 ` Philippe Mathieu-Daudé [this message]
2019-07-02 16:13   ` [Qemu-devel] [PATCH v2 7/9] hw/block/pflash_cfi01: Improve command comments Alistair Francis
2019-07-02  0:13 ` [Qemu-devel] [PATCH v2 8/9] hw/block/pflash_cfi01: Replace DPRINTF by qemu_log_mask(GUEST_ERROR) Philippe Mathieu-Daudé
2019-07-02 16:15   ` Alistair Francis
2019-07-02  0:13 ` [Qemu-devel] [PATCH v2 9/9] hw/block/pflash_cfi01: Hold the PRI table offset in a variable Philippe Mathieu-Daudé
2019-07-02 16:17   ` Alistair Francis
2019-07-02  6:15 ` [Qemu-devel] [PATCH v2 0/9] hw/block/pflash_cfi01: Add DeviceReset() handler no-reply
2019-07-02 10:17   ` Philippe Mathieu-Daudé
2019-07-02 11:52 ` Laszlo Ersek
2019-07-02 13:41   ` Laszlo Ersek
2019-07-02 21:00     ` Laszlo Ersek
2019-07-02 15:28   ` Philippe Mathieu-Daudé

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