[PCMCIA] TI1520 cardbus patch for 2.4.x..

Linus Torvalds wrote:
> Here's a patch that apparently improves throughput on Texas
> Instrument 1520 controllers a lot by enabling memory bursting.
> Apparently to the point that without this you can't even do
> things like 802.11g without starting to drop data.

Done. Also cleaned up the "Override Table" a bit.

drivers/pcmcia/ti113x.h

@@ -241,6 +241,17 @@ static int ti1250_override(struct yenta_socket *socket)
 	return 0;
 }
 
+
+static int ti12xx_override(struct yenta_socket *socket)
+{
+	/* make sure that memory burst is active */
+	ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	ti_sysctl(socket) |= TI122X_SCR_MRBURSTUP;
+	config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
+
+	return ti113x_override(socket);
+}
+
 #endif /* CONFIG_CARDBUS */
 
 #endif /* _LINUX_TI113X_H */

drivers/pcmcia/yenta_socket.c

@@ -807,23 +807,30 @@ struct cardbus_override_struct {
 	unsigned short device;
 	int (*override) (struct yenta_socket *socket);
 } cardbus_override[] = {
-	{ PD(TI,1130),	&ti113x_override },
 	{ PD(TI,1031),	&ti_override },
-	{ PD(TI,1131),	&ti113x_override },
-	{ PD(TI,1250),	&ti1250_override },
-	{ PD(TI,1220),	&ti_override },
-	{ PD(TI,1221),	&ti_override },
+
+	/* TBD: Check if these TI variants can use more
+	 * advanced overrides instead */
 	{ PD(TI,1210),	&ti_override },
-	{ PD(TI,1450),	&ti_override },
-	{ PD(TI,1225),	&ti_override },
-	{ PD(TI,1251A),	&ti_override },
 	{ PD(TI,1211),	&ti_override },
+	{ PD(TI,1251A),	&ti_override },
 	{ PD(TI,1251B),	&ti_override },
-	{ PD(TI,1410),	ti1250_override },
 	{ PD(TI,1420),	&ti_override },
+	{ PD(TI,1450),	&ti_override },
 	{ PD(TI,4410),	&ti_override },
 	{ PD(TI,4451),	&ti_override },
 
+	{ PD(TI,1130),	&ti113x_override },
+	{ PD(TI,1131),	&ti113x_override },
+
+	{ PD(TI,1220),	&ti12xx_override },
+	{ PD(TI,1221),	&ti12xx_override },
+	{ PD(TI,1225),	&ti12xx_override },
+	{ PD(TI,1520),  &ti12xx_override },
+
+	{ PD(TI,1250),	&ti1250_override },
+	{ PD(TI,1410),	&ti1250_override },
+
 	{ PD(RICOH,RL5C465), &ricoh_override },
 	{ PD(RICOH,RL5C466), &ricoh_override },
 	{ PD(RICOH,RL5C475), &ricoh_override },

include/linux/pci_ids.h

@@ -663,7 +663,6 @@
 #define PCI_DEVICE_ID_TI_1220		0xac17
 #define PCI_DEVICE_ID_TI_1221		0xac19
 #define PCI_DEVICE_ID_TI_1210		0xac1a
-#define PCI_DEVICE_ID_TI_1410		0xac50
 #define PCI_DEVICE_ID_TI_1450		0xac1b
 #define PCI_DEVICE_ID_TI_1225		0xac1c
 #define PCI_DEVICE_ID_TI_1251A		0xac1d
@@ -671,7 +670,9 @@
 #define PCI_DEVICE_ID_TI_1251B		0xac1f
 #define PCI_DEVICE_ID_TI_4410		0xac41
 #define PCI_DEVICE_ID_TI_4451		0xac42
+#define PCI_DEVICE_ID_TI_1410		0xac50
 #define PCI_DEVICE_ID_TI_1420		0xac51
+#define PCI_DEVICE_ID_TI_1520		0xac55
 
 #define PCI_VENDOR_ID_SONY		0x104d
 #define PCI_DEVICE_ID_SONY_CXD3222	0x8039