mwl8k: Load 8764 firmware image

This differs from legacy chips i.e.
a 8764 loads firmware image without a helper image
b Check interrupt status register for download
  complete indication.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index e86a31b..aaaf10d 100644 (file)
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -284,6 +284,7 @@ struct mwl8k_priv {
        unsigned fw_state;
        char *fw_pref;
        char *fw_alt;
+       bool is_8764;
        struct completion firmware_loading_complete;
 
        /* bitmap of running BSSes */
@@ -600,13 +601,18 @@ mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
        loops = 1000;
        do {
                u32 int_code;
-
-               int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
-               if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
-                       iowrite32(0, regs + MWL8K_HIU_INT_CODE);
-                       break;
+               if (priv->is_8764) {
+                       int_code = ioread32(regs +
+                                           MWL8K_HIU_H2A_INTERRUPT_STATUS);
+                       if (int_code == 0)
+                               break;
+               } else {
+                       int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
+                       if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
+                               iowrite32(0, regs + MWL8K_HIU_INT_CODE);
+                               break;
+                       }
                }
-
                cond_resched();
                udelay(1);
        } while (--loops);
@@ -724,7 +730,7 @@ static int mwl8k_load_firmware(struct ieee80211_hw *hw)
        int rc;
        int loops;
 
-       if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) {
+       if (!memcmp(fw->data, "\x01\x00\x00\x00", 4) && !priv->is_8764) {
                const struct firmware *helper = priv->fw_helper;
 
                if (helper == NULL) {
@@ -743,7 +749,10 @@ static int mwl8k_load_firmware(struct ieee80211_hw *hw)
 
                rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
        } else {
-               rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
+               if (priv->is_8764)
+                       rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
+               else
+                       rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
        }
 
        if (rc) {
@@ -6007,6 +6016,8 @@ static int mwl8k_probe(struct pci_dev *pdev,
        priv->pdev = pdev;
        priv->device_info = &mwl8k_info_tbl[id->driver_data];
 
+       if (id->driver_data == MWL8764)
+               priv->is_8764 = true;
 
        priv->sram = pci_iomap(pdev, 0, 0x10000);
        if (priv->sram == NULL) {