diff mbox

[Linaro-uefi,v2,11/24] D03/D05: Change to access EEPROM data bytewise

Message ID 1476839040-94656-1-git-send-email-heyi.guo@linaro.org
State Superseded
Headers show

Commit Message

gary guo Oct. 19, 2016, 1:03 a.m. UTC 
From: Peicong Li <lipeicong@huawei.com>

We would get incorrect data when accessing multiple bytes at one time
and going across EEPROM page boundary, so we change to access EEPROM by
single byte each time.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Peicong Li <lipeicong@huawei.com>
---
 .../D03/Drivers/OemNicConfig2PHi1610/OemNicConfig2P.c   | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/Platforms/Hisilicon/D03/Drivers/OemNicConfig2PHi1610/OemNicConfig2P.c b/Platforms/Hisilicon/D03/Drivers/OemNicConfig2PHi1610/OemNicConfig2P.c
index 994ed6a..31fd333 100644
--- a/Platforms/Hisilicon/D03/Drivers/OemNicConfig2PHi1610/OemNicConfig2P.c
+++ b/Platforms/Hisilicon/D03/Drivers/OemNicConfig2PHi1610/OemNicConfig2P.c
@@ -110,6 +110,7 @@  EFI_STATUS OemGetMacE2prom(IN UINT32 Port, OUT UINT8 *pucAddr)
     UINT16     I2cOffset;
     UINT16     crc16;
     NIC_MAC_ADDRESS stMacDesc = {0};
+    UINT32     Index;
 
     Status = I2CInit(0, EEPROM_I2C_PORT, Normal);
     if (EFI_ERROR(Status))
@@ -124,9 +125,10 @@  EFI_STATUS OemGetMacE2prom(IN UINT32 Port, OUT UINT8 *pucAddr)
     stI2cDev.Port = EEPROM_I2C_PORT;
     stI2cDev.SlaveDeviceAddress = I2C_SLAVEADDR_EEPROM;
     stI2cDev.Socket = 0;
-    Status = I2CRead(&stI2cDev, I2cOffset, sizeof(NIC_MAC_ADDRESS), (UINT8 *)&stMacDesc);
-    if (EFI_ERROR(Status))
-    {
+    for (Index = 0; Index < sizeof(NIC_MAC_ADDRESS); Index++) {
+        Status |= I2CRead(&stI2cDev, I2cOffset + Index, 1, (UINT8 *)&stMacDesc + Index);
+    }
+    if (EFI_ERROR(Status)) {
         DEBUG((EFI_D_ERROR, "[%a]:[%dL] Call I2cRead failed! p1=0x%x.\n", __FUNCTION__, __LINE__, Status));
         return Status;
     }
@@ -150,6 +152,7 @@  EFI_STATUS OemSetMacE2prom(IN UINT32 Port, IN UINT8 *pucAddr)
     EFI_STATUS Status;
     UINT16     I2cOffset;
     NIC_MAC_ADDRESS stMacDesc = {0};
+    UINTN      Index;
 
 
     stMacDesc.MacLen = MAC_ADDR_LEN;
@@ -170,9 +173,11 @@  EFI_STATUS OemSetMacE2prom(IN UINT32 Port, IN UINT8 *pucAddr)
     stI2cDev.Port = EEPROM_I2C_PORT;
     stI2cDev.SlaveDeviceAddress = I2C_SLAVEADDR_EEPROM;
     stI2cDev.Socket = 0;
-    Status = I2CWrite(&stI2cDev, I2cOffset, sizeof(NIC_MAC_ADDRESS), (UINT8 *)&stMacDesc);
-    if (EFI_ERROR(Status))
-    {
+    for (Index = 0; Index < sizeof(NIC_MAC_ADDRESS); Index++) {
+        Status |= I2CWrite(&stI2cDev, I2cOffset + Index, 1, (UINT8 *)&stMacDesc + Index);
+    }
+
+    if (EFI_ERROR(Status)) {
         DEBUG((EFI_D_ERROR, "[%a]:[%dL] Call I2cWrite failed! p1=0x%x.\n", __FUNCTION__, __LINE__, Status));
         return Status;
     }