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add support for the wrt54g3g pcmcia

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SVN-Revision: 3700
This commit is contained in:
Felix Fietkau 2006-04-21 16:35:21 +00:00
parent 2a24114d46
commit 4a6c17a89b
1 changed files with 119 additions and 0 deletions
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119
openwrt/target/linux/brcm-2.4/patches/009-wrt54g3g_pcmcia.patch Normal file
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@ -0,0 +1,119 @@
diff -urN linux.old/arch/mips/bcm947xx/pcibios.c linux.dev/arch/mips/bcm947xx/pcibios.c
--- linux.old/arch/mips/bcm947xx/pcibios.c 2006-04-07 21:20:59.000000000 +0200
+++ linux.dev/arch/mips/bcm947xx/pcibios.c 2006-04-08 03:17:59.000000000 +0200
@@ -157,6 +157,7 @@
static u32 pci_iobase = 0x100;
static u32 pci_membase = SB_PCI_DMA;
+static u32 pcmcia_membase = 0x40004000;
void __init
pcibios_fixup_bus(struct pci_bus *b)
@@ -188,7 +189,7 @@
/* Fix up resource bases */
for (pos = 0; pos < 6; pos++) {
res = &d->resource[pos];
- base = (res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase;
+ base = (res->flags & IORESOURCE_IO) ? &pci_iobase : ((b->number == 2) ? &pcmcia_membase : &pci_membase);
if (res->end) {
size = res->end - res->start + 1;
if (*base & (size - 1))
@@ -308,7 +309,12 @@
where = PCI_BASE_ADDRESS_0 + (resource * 4);
size = res->end - res->start;
pci_read_config_dword(dev, where, &reg);
- reg = (reg & size) | (((u32)(res->start - root->start)) & ~size);
+
+ if (dev->bus->number == 1)
+ reg = (reg & size) | (((u32)(res->start - root->start)) & ~size);
+ else
+ reg = res->start;
+
pci_write_config_dword(dev, where, reg);
}
diff -urN linux.old/drivers/pcmcia/yenta.c linux.dev/drivers/pcmcia/yenta.c
--- linux.old/drivers/pcmcia/yenta.c 2004-11-17 12:54:21.000000000 +0100
+++ linux.dev/drivers/pcmcia/yenta.c 2006-04-11 17:47:45.000000000 +0200
@@ -543,6 +543,9 @@
* Probe for usable interrupts using the force
* register to generate bogus card status events.
*/
+
+#ifndef CONFIG_BCM947XX
+ /* 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);
@@ -557,7 +560,8 @@
}
cb_writel(socket, CB_SOCKET_MASK, 0);
exca_writeb(socket, I365_CSCINT, 0);
-
+#endif
+
mask = probe_irq_mask(val) & 0xffff;
bridge_ctrl &= ~CB_BRIDGE_INTR;
@@ -578,6 +582,12 @@
socket->cap.cb_dev = socket->dev;
socket->cap.bus = NULL;
+#ifdef CONFIG_BCM947XX
+ /* irq mask probing is broken for the WRT54G3G */
+ if (socket->cap.irq_mask == 0)
+ socket->cap.irq_mask = 0x6f8;
+#endif
+
printk(KERN_INFO "Yenta ISA IRQ mask 0x%04x, PCI irq %d\n",
socket->cap.irq_mask, socket->cb_irq);
}
@@ -609,6 +619,15 @@
printk(KERN_INFO "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);
+
/* Register it with the pcmcia layer.. */
cardbus_register(socket);
@@ -731,7 +750,7 @@
{
struct pci_bus *bus;
struct resource *root, *res;
- u32 start, end;
+ u32 start = 0, end = 0;
u32 align, size, min, max;
unsigned offset;
unsigned mask;
@@ -750,6 +769,15 @@
res->end = 0;
root = pci_find_parent_resource(socket->dev, res);
+#ifdef CONFIG_BCM947XX
+ /* default mem resources are completely fscked up on the wrt54g3g */
+ /* bypass the entire resource allocation stuff below and just set it statically */
+ if (type & IORESOURCE_MEM) {
+ res->start = 0x40004000;
+ res->end = res->start + 0x3fff;
+ }
+
+#else
if (!root)
return;
@@ -794,6 +822,7 @@
res->start = res->end = 0;
return;
}
+#endif
config_writel(socket, offset, res->start);
config_writel(socket, offset+4, res->end);