MIPS: Netlogic: Add irq mapping and setup for XHCI port 3

Add support for third XHCI port in XLPII processors.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8895/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 11 insertions, 1 deletions

diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c
index c6c31e3c0949..8d743d08fd73 100644
--- a/arch/mips/netlogic/xlp/nlm_hal.c
+++ b/arch/mips/netlogic/xlp/nlm_hal.c
@@ -75,6 +75,8 @@ static int xlp9xx_irq_to_irt(int irq)
                 return 114;
         case PIC_9XX_XHCI_1_IRQ:
                 return 115;
+        case PIC_9XX_XHCI_2_IRQ:
+                return 116;
         case PIC_UART_0_IRQ:
                 return 133;
         case PIC_UART_1_IRQ:
diff --git a/arch/mips/netlogic/xlp/usb-init-xlp2.c b/arch/mips/netlogic/xlp/usb-init-xlp2.c
index 17ade1ce5dfd..2524939a5e3a 100644
--- a/arch/mips/netlogic/xlp/usb-init-xlp2.c
+++ b/arch/mips/netlogic/xlp/usb-init-xlp2.c
@@ -128,6 +128,9 @@ static void xlp9xx_usb_ack(struct irq_data *data)
         case PIC_9XX_XHCI_1_IRQ:
                 port_addr = nlm_xlpii_get_usb_regbase(node, 2);
                 break;
+        case PIC_9XX_XHCI_2_IRQ:
+                port_addr = nlm_xlpii_get_usb_regbase(node, 3);
+                break;
         default:
                 pr_err("No matching USB irq %d node  %d!\n", irq, node);
                 return;
@@ -222,14 +225,16 @@ static int __init nlm_platform_xlpii_usb_init(void)
         }
 
         /* XLP 9XX, multi-node */
-        pr_info("Initializing 9XX USB Interface\n");
+        pr_info("Initializing 9XX/5XX USB Interface\n");
         for (node = 0; node < NLM_NR_NODES; node++) {
                 if (!nlm_node_present(node))
                         continue;
                 nlm_xlpii_usb_hw_reset(node, 1);
                 nlm_xlpii_usb_hw_reset(node, 2);
+                nlm_xlpii_usb_hw_reset(node, 3);
                 nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_0_IRQ, xlp9xx_usb_ack);
                 nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_1_IRQ, xlp9xx_usb_ack);
+                nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_2_IRQ, xlp9xx_usb_ack);
         }
         return 0;
 }
@@ -253,6 +258,9 @@ static void nlm_xlp9xx_usb_fixup_final(struct pci_dev *dev)
         case 0x22:
                 dev->irq = nlm_irq_to_xirq(node, PIC_9XX_XHCI_1_IRQ);
                 break;
+        case 0x23:
+                dev->irq = nlm_irq_to_xirq(node, PIC_9XX_XHCI_2_IRQ);
+                break;
         }
 }