Hi,
This patch enables pci interrupt setup support for usb controller/minipci
slot of arv7510 boards (wippies homebox, bewan ibox, arv7510)
Index: target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c
===================================================================
--- target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c (revisión: 24135)
+++ target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c (copia de trabajo)
@@ -76,6 +76,7 @@
switch(pin)
{
case 0:
+ printk ("WARNING: interrupt pin %d not known\n", pin);
break;
case 1:
//falling edge level triggered:0x4, low level:0xc, rising edge:0x2
@@ -83,9 +84,20 @@
ifxmips_w32(ifxmips_r32(IFXMIPS_EBU_PCC_IEN) | 0x10, IFXMIPS_EBU_PCC_IEN);
break;
case 2:
+ printk ("WARNING: interrupt pin %d not supported yet!\n", pin);
+ return 1;
case 3:
+ ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_DIR) & ~4, IFXMIPS_GPIO_P0_DIR);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL0) | 4, IFXMIPS_GPIO_P0_ALTSEL0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL1) & ~4, IFXMIPS_GPIO_P0_ALTSEL1);
+ //ifxmips_w32(ifxmips_r32(IFXMIPS_ICU_EIU_EXIN_C) | 0x600, IFXMIPS_ICU_EIU_EXIN_C);
+ ifxmips_w32(ifxmips_r32((u32*)0xBF101000) | 0x600, (u32*)0xBF101000);
+ //ifxmips_w32(ifxmips_r32(IFXMIPS_ICU_EIU_INEN) | 4, IFXMIPS_ICU_EIU_INEN);
+ ifxmips_w32(ifxmips_r32((u32*)0xBF10100C) | 4, (u32*)0xBF10100C);
+ break;
case 4:
printk ("WARNING: interrupt pin %d not supported yet!\n", pin);
+ return 1;
default:
printk ("WARNING: invalid interrupt pin %d\n", pin);
return 1;
@@ -130,7 +142,9 @@
/* enable external 2 PCI masters */
temp_buffer = ifxmips_r32(PCI_CR_PC_ARB);
- temp_buffer &= (~(ifxmips_pci_req_mask << 16));
+ //temp_buffer &= (~(ifxmips_pci_req_mask << 16));
+ temp_buffer |= ((ifxmips_pci_req_mask & 0x3) << 18);
+ temp_buffer &= (~((ifxmips_pci_req_mask & 0x3) << 16));
/* enable internal arbiter */
temp_buffer |= (1 << INTERNAL_ARB_ENABLE_BIT);
/* enable internal PCI master reqest */
@@ -178,12 +192,18 @@
pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin){
switch(slot)
{
+ case 12:
+ /* mini PCI connector on arv7510 arv4510? */
+ return (INT_NUM_IM0_IRL0 + 22);
case 13:
/* IDSEL = AD29 --> USB Host Controller */
return (INT_NUM_IM1_IRL0 + 17);
case 14:
/* IDSEL = AD30 --> mini PCI connector */
return (INT_NUM_IM0_IRL0 + 22);
+ case 15:
+ /* VIA 6212 on arv7510 arv4510 also? */
+ return (INT_NUM_IM0_IRL0 + 26);
default:
printk("Warning: no IRQ found for PCI device in slot %d, pin %d\n", slot, pin);
return 0;
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