diff options
Diffstat (limited to 'meta-arm/meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/0009-Platform-ARM-N1Sdp-manually-poll-QSPI-status-bit-aft.patch')
| -rw-r--r-- | meta-arm/meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/0009-Platform-ARM-N1Sdp-manually-poll-QSPI-status-bit-aft.patch | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/meta-arm/meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/0009-Platform-ARM-N1Sdp-manually-poll-QSPI-status-bit-aft.patch b/meta-arm/meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/0009-Platform-ARM-N1Sdp-manually-poll-QSPI-status-bit-aft.patch new file mode 100644 index 0000000000..8e14699585 --- /dev/null +++ b/meta-arm/meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/0009-Platform-ARM-N1Sdp-manually-poll-QSPI-status-bit-aft.patch @@ -0,0 +1,197 @@ +From 6d274379f584a638c1f2b4b8a19014d4baef1d9f Mon Sep 17 00:00:00 2001 +From: sahil <sahil@arm.com> +Date: Thu, 11 Aug 2022 11:26:29 +0530 +Subject: [PATCH] Platform/ARM/N1Sdp: manually poll QSPI status bit after + erase/write + +This patch adds a function to poll Nor flash memory's status register +bit (WIP bit) to wait for an erase/write operation to complete. +The polling timeout is set to 1 second. + +Upstream-Status: Pending +Signed-off-by: Xueliang Zhong <xueliang.zhong@arm.com> +Signed-off-by: sahil <sahil@arm.com> +Change-Id: Ie678b7586671964ae0f8506a0542d73cbddddfe4 +--- + .../Drivers/CadenceQspiDxe/CadenceQspiDxe.inf | 1 + + .../Drivers/CadenceQspiDxe/CadenceQspiReg.h | 6 +- + .../N1Sdp/Drivers/CadenceQspiDxe/NorFlash.c | 80 ++++++++++++++++++- + .../N1Sdp/Drivers/CadenceQspiDxe/NorFlash.h | 5 ++ + 4 files changed, 88 insertions(+), 4 deletions(-) + +diff --git a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiDxe.inf b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiDxe.inf +index 4f20c3ba..7a39eb2d 100644 +--- a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiDxe.inf ++++ b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiDxe.inf +@@ -39,6 +39,7 @@ + MemoryAllocationLib + NorFlashInfoLib + NorFlashPlatformLib ++ TimerLib + UefiBootServicesTableLib + UefiDriverEntryPoint + UefiLib +diff --git a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiReg.h b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiReg.h +index fe3b327c..1971631d 100644 +--- a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiReg.h ++++ b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/CadenceQspiReg.h +@@ -16,13 +16,15 @@ + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BIT_POS 19 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_BIT_POS 16 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_STATUS_BIT 0x02 +-#define CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_4B 0x03 +-#define CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_3B 0x02 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_OPCODE_BIT_POS 24 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_READ_ENABLE 0x01 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_READ_BYTE_3B 0x02 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_READEN_BIT_POS 23 + #define CDNS_QSPI_FLASH_CMD_CTRL_REG_READBYTE_BIT_POS 20 ++#define CDNS_QSPI_FLASH_CMD_CTRL_REG_DUMMY_8C 0x8 ++#define CDNS_QSPI_FLASH_CMD_CTRL_REG_DUMMY_BIT_POS 7 ++#define CDNS_QSPI_FLASH_CMD_CTRL_REG_NUM_DATA_BYTES(x) ((x - 1) << CDNS_QSPI_FLASH_CMD_CTRL_REG_READBYTE_BIT_POS) ++#define CDNS_QSPI_FLASH_CMD_CTRL_REG_NUM_ADDR_BYTES(x) ((x - 1) << CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_BIT_POS) + + #define CDNS_QSPI_FLASH_CMD_READ_DATA_REG_OFFSET 0xA0 + +diff --git a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.c b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.c +index 188c75e2..6832351a 100644 +--- a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.c ++++ b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.c +@@ -10,6 +10,7 @@ + #include <Library/MemoryAllocationLib.h> + #include <Library/NorFlashInfoLib.h> + #include <Library/PcdLib.h> ++#include <Library/TimerLib.h> + #include <Library/UefiBootServicesTableLib.h> + #include <Library/UefiLib.h> + +@@ -184,6 +185,74 @@ FreeInstance: + return Status; + } + ++/** ++ Converts milliseconds into number of ticks of the performance counter. ++ ++ @param[in] Milliseconds Milliseconds to convert into ticks. ++ ++ @retval Milliseconds expressed as number of ticks. ++ ++**/ ++STATIC ++UINT64 ++MilliSecondsToTicks ( ++ IN UINTN Milliseconds ++ ) ++{ ++ CONST UINT64 NanoSecondsPerTick = GetTimeInNanoSecond (1); ++ ++ return (Milliseconds * 1000000) / NanoSecondsPerTick; ++} ++ ++/** ++ Poll Status register for NOR flash erase/write completion. ++ ++ @param[in] Instance NOR flash Instance. ++ ++ @retval EFI_SUCCESS Request is executed successfully. ++ @retval EFI_TIMEOUT Operation timed out. ++ @retval EFI_DEVICE_ERROR Controller operartion failed. ++ ++**/ ++STATIC ++EFI_STATUS ++NorFlashPollStatusRegister ( ++ IN NOR_FLASH_INSTANCE *Instance ++ ) ++{ ++ BOOLEAN SRegDone; ++ UINT32 val; ++ ++ val = SPINOR_OP_RDSR << CDNS_QSPI_FLASH_CMD_CTRL_REG_OPCODE_BIT_POS | ++ CDNS_QSPI_FLASH_CMD_CTRL_REG_READ_ENABLE << CDNS_QSPI_FLASH_CMD_CTRL_REG_READEN_BIT_POS | ++ CDNS_QSPI_FLASH_CMD_CTRL_REG_NUM_DATA_BYTES(1) | ++ CDNS_QSPI_FLASH_CMD_CTRL_REG_DUMMY_8C << CDNS_QSPI_FLASH_CMD_CTRL_REG_DUMMY_BIT_POS; ++ ++ CONST UINT64 TickOut = ++ GetPerformanceCounter () + MilliSecondsToTicks (SPINOR_SR_WIP_POLL_TIMEOUT_MS); ++ ++ do { ++ if (GetPerformanceCounter () > TickOut) { ++ DEBUG (( ++ DEBUG_ERROR, ++ "NorFlashPollStatusRegister: Timeout waiting for erase/write.\n" ++ )); ++ return EFI_TIMEOUT; ++ } ++ ++ if (EFI_ERROR (CdnsQspiExecuteCommand (Instance, val))) { ++ return EFI_DEVICE_ERROR; ++ } ++ ++ SRegDone = ++ (MmioRead8 (Instance->HostRegisterBaseAddress + CDNS_QSPI_FLASH_CMD_READ_DATA_REG_OFFSET) ++ & SPINOR_SR_WIP) == 0; ++ ++ } while (!SRegDone); ++ ++ return EFI_SUCCESS; ++} ++ + /** + Check whether NOR flash opertions are Locked. + +@@ -305,12 +374,16 @@ NorFlashEraseSingleBlock ( + + DevConfigVal = SPINOR_OP_BE_4K << CDNS_QSPI_FLASH_CMD_CTRL_REG_OPCODE_BIT_POS | + CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_ENABLE << CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BIT_POS | +- CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_3B << CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_BIT_POS; ++ CDNS_QSPI_FLASH_CMD_CTRL_REG_NUM_ADDR_BYTES(3); + + if (EFI_ERROR (CdnsQspiExecuteCommand (Instance, DevConfigVal))) { + return EFI_DEVICE_ERROR; + } + ++ if (EFI_ERROR (NorFlashPollStatusRegister (Instance))) { ++ return EFI_DEVICE_ERROR; ++ } ++ + return EFI_SUCCESS; + } + +@@ -383,6 +456,9 @@ NorFlashWriteSingleWord ( + return EFI_DEVICE_ERROR; + } + MmioWrite32 (WordAddress, WriteData); ++ if (EFI_ERROR (NorFlashPollStatusRegister (Instance))) { ++ return EFI_DEVICE_ERROR; ++ } + return EFI_SUCCESS; + } + +@@ -907,7 +983,7 @@ NorFlashReadID ( + + val = SPINOR_OP_RDID << CDNS_QSPI_FLASH_CMD_CTRL_REG_OPCODE_BIT_POS | + CDNS_QSPI_FLASH_CMD_CTRL_REG_READ_ENABLE << CDNS_QSPI_FLASH_CMD_CTRL_REG_READEN_BIT_POS | +- CDNS_QSPI_FLASH_CMD_CTRL_REG_ADDR_BYTE_3B << CDNS_QSPI_FLASH_CMD_CTRL_REG_READBYTE_BIT_POS; ++ CDNS_QSPI_FLASH_CMD_CTRL_REG_NUM_DATA_BYTES(3); + + if (EFI_ERROR (CdnsQspiExecuteCommand (Instance, val))) { + return EFI_DEVICE_ERROR; +diff --git a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.h b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.h +index e720937e..eb0afc60 100644 +--- a/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.h ++++ b/Platform/ARM/N1Sdp/Drivers/CadenceQspiDxe/NorFlash.h +@@ -477,8 +477,13 @@ NorFlashReadID ( + OUT UINT8 JedecId[3] + ); + ++#define SPINOR_SR_WIP BIT0 // Write in progress ++ + #define SPINOR_OP_WREN 0x06 // Write enable + #define SPINOR_OP_BE_4K 0x20 // Erase 4KiB block + #define SPINOR_OP_RDID 0x9f // Read JEDEC ID ++#define SPINOR_OP_RDSR 0x05 // Read status register ++ ++#define SPINOR_SR_WIP_POLL_TIMEOUT_MS 1000u // Status Register read timeout + + #endif /* NOR_FLASH_DXE_H_ */ |