From: Emmanuel Grumbach <[email protected]>

This is fully backward compatible with older platforms.

Signed-off-by: Emmanuel Grumbach <[email protected]>
---
 drivers/net/wireless/iwlwifi/iwl-csr.h    | 4 ++++
 drivers/net/wireless/iwlwifi/pcie/trans.c | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h 
b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 3f6f015..9965717 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -129,6 +129,8 @@
 #define CSR_UCODE_DRV_GP1_CLR   (CSR_BASE+0x05c)
 #define CSR_UCODE_DRV_GP2       (CSR_BASE+0x060)
 
+#define CSR_MBOX_SET_REG       (CSR_BASE + 0x88)
+
 #define CSR_LED_REG             (CSR_BASE+0x094)
 #define CSR_DRAM_INT_TBL_REG   (CSR_BASE+0x0A0)
 #define CSR_MAC_SHADOW_REG_CTRL        (CSR_BASE+0x0A8) /* 6000 and up */
@@ -184,6 +186,8 @@
 #define CSR_HW_IF_CONFIG_REG_PREPARE             (0x08000000) /* WAKE_ME */
 #define CSR_HW_IF_CONFIG_REG_PERSIST_MODE        (0x40000000) /* PERSISTENCE */
 
+#define CSR_MBOX_SET_REG_OS_ALIVE              BIT(5)
+
 #define CSR_INT_PERIODIC_DIS                   (0x00) /* disable periodic int*/
 #define CSR_INT_PERIODIC_ENA                   (0xFF) /* 255*32 usec ~ 8 msec*/
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c 
b/drivers/net/wireless/iwlwifi/pcie/trans.c
index d872749..12cb427 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -512,6 +512,9 @@ static int iwl_pcie_set_hw_ready(struct iwl_trans *trans)
                           CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
                           HW_READY_TIMEOUT);
 
+       if (ret >= 0)
+               iwl_set_bit(trans, CSR_MBOX_SET_REG, CSR_MBOX_SET_REG_OS_ALIVE);
+
        IWL_DEBUG_INFO(trans, "hardware%s ready\n", ret < 0 ? " not" : "");
        return ret;
 }
-- 
1.9.1

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