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authorHauke Mehrtens <hauke@hauke-m.de>2014-09-14 23:09:08 +0200
committerJohn W. Linville <linville@tuxdriver.com>2014-09-15 15:00:53 -0400
commit5eb3645e0f35e8e12a82b055ea1204ae322d2a19 (patch)
tree2241f591c590f19e80fc1ca6867168cde01ab8b5
parenta43b5142ad7ae97a277e001cb352e509da451cb9 (diff)
downloadlinux-5eb3645e0f35e8e12a82b055ea1204ae322d2a19.tar.gz
b43: tell the ucode the mac capabilities
This is based on code form brcmsmac.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/b43/b43.h3
-rw-r--r--drivers/net/wireless/b43/main.c10
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index a9805950f780..8ebce26ef4d0 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -45,6 +45,7 @@
 #define B43_MMIO_RAM_DATA		0x134
 #define B43_MMIO_PS_STATUS		0x140
 #define B43_MMIO_RADIO_HWENABLED_HI	0x158
+#define B43_MMIO_MAC_HW_CAP		0x15C	/* MAC capabilities (corerev >= 13) */
 #define B43_MMIO_SHM_CONTROL		0x160
 #define B43_MMIO_SHM_DATA		0x164
 #define B43_MMIO_SHM_DATA_UNALIGNED	0x166
@@ -253,6 +254,8 @@ enum {
 #define B43_SHM_SH_CHAN			0x00A0	/* Current channel (low 8bit only) */
 #define  B43_SHM_SH_CHAN_5GHZ		0x0100	/* Bit set, if 5 Ghz channel */
 #define  B43_SHM_SH_CHAN_40MHZ		0x0200	/* Bit set, if 40 Mhz channel width */
+#define B43_SHM_SH_MACHW_L		0x00C0	/* Location where the ucode expects the MAC capabilities */
+#define B43_SHM_SH_MACHW_H		0x00C2	/* Location where the ucode expects the MAC capabilities */
 #define B43_SHM_SH_HOSTF5		0x00D4	/* Hostflags 5 for ucode options */
 #define B43_SHM_SH_BCMCFIFOID		0x0108	/* Last posted cookie to the bcast/mcast FIFO */
 /* TSSI information */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 3adc13f6ffef..85ab46c42734 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4857,6 +4857,16 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
 	hf &= ~B43_HF_SKCFPUP;
 	b43_hf_write(dev, hf);
 
+	/* tell the ucode MAC capabilities */
+	if (dev->dev->core_rev >= 13) {
+		u32 mac_hw_cap = b43_read32(dev, B43_MMIO_MAC_HW_CAP);
+
+		b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_MACHW_L,
+				mac_hw_cap & 0xffff);
+		b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_MACHW_H,
+				(mac_hw_cap >> 16) & 0xffff);
+	}
+
 	b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
 			     B43_DEFAULT_LONG_RETRY_LIMIT);
 	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);