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ramips: fix pcie irq mapping for mt7621 on v4.9 

Signed-off-by: John Crispin <john@phrozen.org>
owl
John Crispin 2017-03-24 08:31:17 +01:00
parent 2ebfdabfbd
commit 0f4600c275
1 changed files with 18 additions and 10 deletions
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28
target/linux/ramips/patches-4.9/0004-MIPS-ralink-add-MT7621-pcie-driver.patch
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@ -10,8 +10,10 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
2 files changed, 814 insertions(+)
create mode 100644 arch/mips/pci/pci-mt7621.c
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
Index: linux-4.9.14/arch/mips/pci/Makefile
===================================================================
--- linux-4.9.14.orig/arch/mips/pci/Makefile
+++ linux-4.9.14/arch/mips/pci/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_SNI_RM) += fixup-sni.o ops
obj-$(CONFIG_LANTIQ) += fixup-lantiq.o
obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o
@ -20,9 +22,11 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_SOC_RT288X) += pci-rt2880.o
obj-$(CONFIG_SOC_RT3883) += pci-rt3883.o
obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o
Index: linux-4.9.14/arch/mips/pci/pci-mt7621.c
===================================================================
--- /dev/null
+++ b/arch/mips/pci/pci-mt7621.c
@@ -0,0 +1,832 @@
+++ linux-4.9.14/arch/mips/pci/pci-mt7621.c
@@ -0,0 +1,836 @@
+/**************************************************************************
+ *
+ * BRIEF MODULE DESCRIPTION
@ -77,6 +81,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_pci.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
+#include <ralink_regs.h>
@ -98,12 +103,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
+#define RALINK_PCI_CONFIG_ADDR 0x20
+#define RALINK_PCI_CONFIG_DATA_VIRTUAL_REG 0x24
+#define SURFBOARDINT_PCIE0 11 /* PCIE0 */
+#define RALINK_INT_PCIE0 SURFBOARDINT_PCIE0
+#define RALINK_INT_PCIE1 SURFBOARDINT_PCIE1
+#define RALINK_INT_PCIE2 SURFBOARDINT_PCIE2
+#define SURFBOARDINT_PCIE1 31 /* PCIE1 */
+#define SURFBOARDINT_PCIE2 32 /* PCIE2 */
+#define RALINK_INT_PCIE0 pcie_irq[0]
+#define RALINK_INT_PCIE1 pcie_irq[1]
+#define RALINK_INT_PCIE2 pcie_irq[2]
+#define RALINK_PCI_MEMBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x0028)
+#define RALINK_PCI_IOBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x002C)
+#define RALINK_PCIE0_RST (1<<24)
@ -221,6 +223,8 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+#define PCI_ACCESS_WRITE_2 4
+#define PCI_ACCESS_WRITE_4 5
+
+static int pcie_irq[3];
+
+static int config_access(unsigned char access_type, struct pci_bus *bus,
+ unsigned int devfn, unsigned int where, u32 * data)
+{
@ -599,6 +603,10 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+static int mt7621_pci_probe(struct platform_device *pdev)
+{
+ unsigned long val = 0;
+ int i;
+
+ for (i = 0; i < 3; i++)
+ pcie_irq[i] = irq_of_parse_and_map(pdev->dev.of_node, i);
+
+ iomem_resource.start = 0;
+ iomem_resource.end= ~0;