From 1e0b393a4478fdce0e39a5b7fe7d05ee4ab46105 Mon Sep 17 00:00:00 2001 From: Eran Harary <eran.harary@intel.com> Date: Wed, 11 Jun 2014 11:37:09 +0300 Subject: [PATCH] iwlwifi: mvm: read the mac address in family 8000 In family 8000 products the MAC address in the OTP could be in either: - WFPM address - PCIE address In sdio product we should read it from the WFPM, in pcie product we should read it from the PCIe location. This is relevant only from otp version 0xE08 and above. While at it, fix the bytes order in version 0xE08. Signed-off-by: Eran Harary <eran.harary@intel.com> Reviewed-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> --- drivers/net/wireless/iwlwifi/iwl-nvm-parse.c | 60 ++++++++++++++++---- 1 file changed, 48 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index f0ae038f3339..dd76ed28884d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -63,6 +63,7 @@ #include <linux/slab.h> #include <linux/export.h> #include <linux/etherdevice.h> +#include <linux/pci.h> #include "iwl-drv.h" #include "iwl-modparams.h" #include "iwl-nvm-parse.h" @@ -87,8 +88,10 @@ enum wkp_nvm_offsets { enum family_8000_nvm_offsets { /* NVM HW-Section offset (in words) definitions */ - HW_ADDR0_FAMILY_8000 = 0x12, - HW_ADDR1_FAMILY_8000 = 0x16, + HW_ADDR0_WFPM_FAMILY_8000 = 0x12, + HW_ADDR1_WFPM_FAMILY_8000 = 0x16, + HW_ADDR0_PCIE_FAMILY_8000 = 0x8A, + HW_ADDR1_PCIE_FAMILY_8000 = 0x8E, MAC_ADDRESS_OVERRIDE_FAMILY_8000 = 1, /* NVM SW-Section offset (in words) definitions */ @@ -504,16 +507,49 @@ static void iwl_set_hw_address_family_8000(struct device *dev, } if (nvm_hw) { - /* take the MAC address from the OTP */ - hw_addr = (const u8 *)(nvm_hw + HW_ADDR0_FAMILY_8000); - data->hw_addr[0] = hw_addr[3]; - data->hw_addr[1] = hw_addr[2]; - data->hw_addr[2] = hw_addr[1]; - data->hw_addr[3] = hw_addr[0]; - - hw_addr = (const u8 *)(nvm_hw + HW_ADDR1_FAMILY_8000); - data->hw_addr[4] = hw_addr[1]; - data->hw_addr[5] = hw_addr[0]; + /* read the MAC address from OTP */ + if (!dev_is_pci(dev) || (data->nvm_version < 0xE08)) { + /* read the mac address from the WFPM location */ + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR0_WFPM_FAMILY_8000); + data->hw_addr[0] = hw_addr[3]; + data->hw_addr[1] = hw_addr[2]; + data->hw_addr[2] = hw_addr[1]; + data->hw_addr[3] = hw_addr[0]; + + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR1_WFPM_FAMILY_8000); + data->hw_addr[4] = hw_addr[1]; + data->hw_addr[5] = hw_addr[0]; + } else if ((data->nvm_version >= 0xE08) && + (data->nvm_version < 0xE0B)) { + /* read "reverse order" from the PCIe location */ + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR0_PCIE_FAMILY_8000); + data->hw_addr[5] = hw_addr[2]; + data->hw_addr[4] = hw_addr[1]; + data->hw_addr[3] = hw_addr[0]; + + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR1_PCIE_FAMILY_8000); + data->hw_addr[2] = hw_addr[3]; + data->hw_addr[1] = hw_addr[2]; + data->hw_addr[0] = hw_addr[1]; + } else { + /* read from the PCIe location */ + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR0_PCIE_FAMILY_8000); + data->hw_addr[5] = hw_addr[0]; + data->hw_addr[4] = hw_addr[1]; + data->hw_addr[3] = hw_addr[2]; + + hw_addr = (const u8 *)(nvm_hw + + HW_ADDR1_PCIE_FAMILY_8000); + data->hw_addr[2] = hw_addr[1]; + data->hw_addr[1] = hw_addr[2]; + data->hw_addr[0] = hw_addr[3]; + } + return; } -- 2.30.9