From: "Ard Biesheuvel" <ardb@kernel.org>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb@kernel.org>,
Gerd Hoffmann <kraxel@redhat.com>,
Sunil V L <sunilvl@ventanamicro.com>,
Sami Mujawar <sami.mujawar@arm.com>,
Leif Lindholm <quic_llindhol@quicinc.com>
Subject: [PATCH 03/11] OvmfPkg/VirtNorFlashDxe: remove CheckBlockLocked feature
Date: Mon, 24 Oct 2022 19:01:14 +0200 [thread overview]
Message-ID: <20221024170122.594577-4-ardb@kernel.org> (raw)
In-Reply-To: <20221024170122.594577-1-ardb@kernel.org>
We inherited a feature from the ArmPlatformPkg version of this driver
that never gets enabled. Let's remove it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
OvmfPkg/VirtNorFlashDxe/VirtNorFlash.c | 35 +++++---------------
OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.inf | 3 --
2 files changed, 8 insertions(+), 30 deletions(-)
diff --git a/OvmfPkg/VirtNorFlashDxe/VirtNorFlash.c b/OvmfPkg/VirtNorFlashDxe/VirtNorFlash.c
index 12fa720dad84..59a562efdf36 100644
--- a/OvmfPkg/VirtNorFlashDxe/VirtNorFlash.c
+++ b/OvmfPkg/VirtNorFlashDxe/VirtNorFlash.c
@@ -65,35 +65,16 @@ NorFlashUnlockSingleBlock (
// Raise the Task Priority Level to TPL_NOTIFY to serialise all its operations
// and to protect shared data structures.
- if (FeaturePcdGet (PcdNorFlashCheckBlockLocked) == TRUE) {
- do {
- // Request a lock setup
- SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_LOCK_BLOCK_SETUP);
+ // Request a lock setup
+ SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_LOCK_BLOCK_SETUP);
- // Request an unlock
- SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_UNLOCK_BLOCK);
+ // Request an unlock
+ SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_UNLOCK_BLOCK);
- // Send command for reading device id
- SEND_NOR_COMMAND (BlockAddress, 2, P30_CMD_READ_DEVICE_ID);
-
- // Read block lock status
- LockStatus = MmioRead32 (CREATE_NOR_ADDRESS (BlockAddress, 2));
-
- // Decode block lock status
- LockStatus = FOLD_32BIT_INTO_16BIT (LockStatus);
- } while ((LockStatus & 0x1) == 1);
- } else {
- // Request a lock setup
- SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_LOCK_BLOCK_SETUP);
-
- // Request an unlock
- SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_UNLOCK_BLOCK);
-
- // Wait until the status register gives us the all clear
- do {
- LockStatus = NorFlashReadStatusRegister (Instance, BlockAddress);
- } while ((LockStatus & P30_SR_BIT_WRITE) != P30_SR_BIT_WRITE);
- }
+ // Wait until the status register gives us the all clear
+ do {
+ LockStatus = NorFlashReadStatusRegister (Instance, BlockAddress);
+ } while ((LockStatus & P30_SR_BIT_WRITE) != P30_SR_BIT_WRITE);
// Put device back into Read Array mode
SEND_NOR_COMMAND (BlockAddress, 0, P30_CMD_READ_ARRAY);
diff --git a/OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.inf b/OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.inf
index 1bf50e482391..53e9d5820488 100644
--- a/OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.inf
+++ b/OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.inf
@@ -24,7 +24,6 @@ [Sources.common]
VirtNorFlashFvb.c
[Packages]
- ArmPlatformPkg/ArmPlatformPkg.dec
EmbeddedPkg/EmbeddedPkg.dec
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
@@ -66,7 +65,5 @@ [Pcd.common]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
- gArmPlatformTokenSpaceGuid.PcdNorFlashCheckBlockLocked
-
[Depex]
gEfiCpuArchProtocolGuid
--
2.35.1
next prev parent reply other threads:[~2022-10-24 17:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-24 17:01 [PATCH 00/11] ArmVirtPkg: introduce VirtNorFlashDxe Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 01/11] OvmfPkg: clone NorFlashPlatformLib into VirtNorFlashPlatformLib Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 02/11] OvmfPkg/VirtNorFlashDxe: clone ArmPlatformPkg's NOR flash driver Ard Biesheuvel
2022-10-24 17:01 ` Ard Biesheuvel [this message]
2022-10-24 17:01 ` [PATCH 04/11] OvmfPkg/VirtNorFlashDxe: remove disk I/O protocol implementation Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 05/11] OvmfPkg/VirtNorFlashDxe: drop block " Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 06/11] OvmfPkg/VirtNorFlashDxe: avoid array mode switch after each word write Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 07/11] OvmfPkg/VirtNorFlashDxe: avoid switching between modes in a tight loop Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 08/11] OvmfPkg/VirtNorFlashDxe: use EFI_MEMORY_WC and drop AlignedCopyMem() Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 09/11] ArmVirtPkg/ArmVirtQemu: migrate to OVMF's VirtNorFlashDxe Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 10/11] ArmVirtPkg/ArmVirtKvmTool: Migrate " Ard Biesheuvel
2022-10-24 17:01 ` [PATCH 11/11] ArmPlatformPkg: Retire NorFlashDxe driver Ard Biesheuvel
2022-10-25 16:32 ` Leif Lindholm
2022-10-27 4:47 ` [PATCH 00/11] ArmVirtPkg: introduce VirtNorFlashDxe Sunil V L
2022-10-27 16:56 ` Ard Biesheuvel
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