MIPS: PCI: Netlogic XLP9XX support
Add PCI support for Netlogic XLP9XX. The PCI registers and
SoC bus numbers have changed in XLP9XX.
Also skip a few (bus,dev,fn) combinations which have issues when
read.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6284/
diff --git a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
index 0fac32b..d4deb87 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
@@ -63,6 +63,12 @@
#define PCIE_INT_EN0 0x261
#define PCIE_INT_EN1 0x262
+/* XLP9XX has basic changes */
+#define PCIE_9XX_BYTE_SWAP_MEM_BASE 0x25c
+#define PCIE_9XX_BYTE_SWAP_MEM_LIM 0x25d
+#define PCIE_9XX_BYTE_SWAP_IO_BASE 0x25e
+#define PCIE_9XX_BYTE_SWAP_IO_LIM 0x25f
+
/* other */
#define PCIE_NLINKS 4
@@ -78,8 +84,8 @@
#define nlm_read_pcie_reg(b, r) nlm_read_reg(b, r)
#define nlm_write_pcie_reg(b, r, v) nlm_write_reg(b, r, v)
-#define nlm_get_pcie_base(node, inst) \
- nlm_pcicfg_base(XLP_IO_PCIE_OFFSET(node, inst))
+#define nlm_get_pcie_base(node, inst) nlm_pcicfg_base(cpu_is_xlp9xx() ? \
+ XLP9XX_IO_PCIE_OFFSET(node, inst) : XLP_IO_PCIE_OFFSET(node, inst))
#ifdef CONFIG_PCI_MSI
void xlp_init_node_msi_irqs(int node, int link);
diff --git a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
index 9ccdb7d..120c003 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
@@ -84,6 +84,9 @@
void nlm_hal_init(void);
int xlp_get_dram_map(int n, uint64_t *dram_map);
+struct pci_dev;
+int xlp_socdev_to_node(const struct pci_dev *dev);
+
/* Device tree related */
void xlp_early_init_devtree(void);
void *xlp_dt_init(void *fdtp);