fix yenta_socket driver

Disable some calls the WRT54G3G implementation does not like
and enable interrupts to allow hotplugging.

SVN-Revision: 20240

target/linux/brcm47xx/patches-2.6.32/940-bcm47xx-yenta.patch

@@ -0,0 +1,48 @@
+Index: linux-2.6.32.9/drivers/pcmcia/yenta_socket.c
+===================================================================
+--- linux-2.6.32.9.orig/drivers/pcmcia/yenta_socket.c	2010-03-12 09:43:45.000000000 +0100
++++ linux-2.6.32.9/drivers/pcmcia/yenta_socket.c	2010-03-12 10:05:33.000000000 +0100
+@@ -866,6 +866,8 @@
+ 	 * Probe for usable interrupts using the force
+ 	 * register to generate bogus card status events.
+ 	 */
++#ifndef CONFIG_BCM47XX
++	/* WRT54G3G does not like this */
+ 	cb_writel(socket, CB_SOCKET_EVENT, -1);
+ 	cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
+ 	exca_writeb(socket, I365_CSCINT, 0);
+@@ -880,6 +882,7 @@
+ 	}
+ 	cb_writel(socket, CB_SOCKET_MASK, 0);
+ 	exca_writeb(socket, I365_CSCINT, 0);
++#endif
+ 
+ 	mask = probe_irq_mask(val) & 0xffff;
+ 
+@@ -960,6 +963,10 @@
+ 	else
+ 		socket->socket.irq_mask = 0;
+ 
++	/* irq mask probing is broken for the WRT54G3G */
++	if (socket->socket.irq_mask == 0)
++		socket->socket.irq_mask = 0x6f8;
++
+ 	dev_printk(KERN_INFO, &socket->dev->dev,
+ 		   "ISA IRQ mask 0x%04x, PCI irq %d\n",
+ 		   socket->socket.irq_mask, socket->cb_irq);
+@@ -1198,6 +1205,15 @@
+ 	dev_printk(KERN_INFO, &dev->dev,
+ 		   "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
+ 
++	/* Generate an interrupt on card insert/remove */
++	config_writew(socket, CB_SOCKET_MASK, CB_CSTSMASK | CB_CDMASK);
++
++	/* Set up Multifunction Routing Status Register */
++	config_writew(socket, 0x8C, 0x1000 /* MFUNC3 to GPIO3 */ | 0x2 /* MFUNC0 to INTA */);
++
++	/* Switch interrupts to parallelized */
++	config_writeb(socket, 0x92, 0x64);
++
+ 	yenta_fixup_parent_bridge(dev->subordinate);
+ 
+ 	/* Register it with the pcmcia layer.. */

target/linux/brcm47xx/patches-2.6.33/940-bcm47xx-yenta.patch

@@ -0,0 +1,48 @@
+Index: linux-2.6.32.9/drivers/pcmcia/yenta_socket.c
+===================================================================
+--- linux-2.6.32.9.orig/drivers/pcmcia/yenta_socket.c	2010-03-12 09:43:45.000000000 +0100
++++ linux-2.6.32.9/drivers/pcmcia/yenta_socket.c	2010-03-12 10:05:33.000000000 +0100
+@@ -866,6 +866,8 @@
+ 	 * Probe for usable interrupts using the force
+ 	 * register to generate bogus card status events.
+ 	 */
++#ifndef CONFIG_BCM47XX
++	/* WRT54G3G does not like this */
+ 	cb_writel(socket, CB_SOCKET_EVENT, -1);
+ 	cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
+ 	exca_writeb(socket, I365_CSCINT, 0);
+@@ -880,6 +882,7 @@
+ 	}
+ 	cb_writel(socket, CB_SOCKET_MASK, 0);
+ 	exca_writeb(socket, I365_CSCINT, 0);
++#endif
+ 
+ 	mask = probe_irq_mask(val) & 0xffff;
+ 
+@@ -960,6 +963,10 @@
+ 	else
+ 		socket->socket.irq_mask = 0;
+ 
++	/* irq mask probing is broken for the WRT54G3G */
++	if (socket->socket.irq_mask == 0)
++		socket->socket.irq_mask = 0x6f8;
++
+ 	dev_printk(KERN_INFO, &socket->dev->dev,
+ 		   "ISA IRQ mask 0x%04x, PCI irq %d\n",
+ 		   socket->socket.irq_mask, socket->cb_irq);
+@@ -1198,6 +1205,15 @@
+ 	dev_printk(KERN_INFO, &dev->dev,
+ 		   "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
+ 
++	/* Generate an interrupt on card insert/remove */
++	config_writew(socket, CB_SOCKET_MASK, CB_CSTSMASK | CB_CDMASK);
++
++	/* Set up Multifunction Routing Status Register */
++	config_writew(socket, 0x8C, 0x1000 /* MFUNC3 to GPIO3 */ | 0x2 /* MFUNC0 to INTA */);
++
++	/* Switch interrupts to parallelized */
++	config_writeb(socket, 0x92, 0x64);
++
+ 	yenta_fixup_parent_bridge(dev->subordinate);
+ 
+ 	/* Register it with the pcmcia layer.. */