aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/imx6/patches-3.10/200-imx6_pcie.patch
blob: 1f84d5eb72b4d940b6142167e94627039c6bf63e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -328,6 +328,15 @@
 			};
 		};
 
+		pcie: pcie@01ffc000 {
+			#crtc-cells = <1>;
+			compatible = "fsl,imx6q-pcie", "fsl,pcie";
+			reg = <0x01ffc000 0x4000>;
+			clocks = <&clks 144>, <&clks 189>;
+			clock-names = "pcie_axi", "pcie_ref_125m";
+			status = "disabled";
+		};
+
 		ipu2: ipu@02800000 {
 			#crtc-cells = <1>;
 			compatible = "fsl,imx6q-ipu";
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -790,6 +790,8 @@ config SOC_IMX6Q
 	bool "i.MX6 Quad/DualLite support"
 	select ARCH_HAS_CPUFREQ
 	select ARCH_HAS_OPP
+	select ARCH_HAS_IMX_PCIE
+	select ARCH_SUPPORTS_MSI
 	select ARM_CPU_SUSPEND if PM
 	select ARM_ERRATA_754322
 	select ARM_ERRATA_764369 if SMP
@@ -816,6 +818,10 @@ config SOC_IMX6Q
 	help
 	  This enables support for Freescale i.MX6 Quad processor.
 
+config IMX_PCIE
+	bool "PCI Express support"
+	select PCI
+
 endif
 
 source "arch/arm/mach-imx/devices/Kconfig"
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -98,6 +98,8 @@ AFLAGS_headsmp.o :=-Wa,-march=armv7-a
 obj-$(CONFIG_SMP) += headsmp.o platsmp.o
 obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
 obj-$(CONFIG_SOC_IMX6Q) += clk-imx6q.o mach-imx6q.o
+obj-$(CONFIG_IMX_PCIE) += pcie.o
+obj-$(CONFIG_PCI_MSI) += msi.o
 
 ifeq ($(CONFIG_PM),y)
 obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -547,6 +547,12 @@ int __init mx6q_clocks_init(void)
 	clk_register_clkdev(clk[ahb], "ahb", NULL);
 	clk_register_clkdev(clk[cko1], "cko1", NULL);
 	clk_register_clkdev(clk[arm], NULL, "cpu0");
+	clk_register_clkdev(clk[pcie_axi_sel], "pcie_axi_sel", NULL);
+	clk_register_clkdev(clk[axi], "axi", NULL);
+	clk_register_clkdev(clk[pll6_enet], "pll6_enet", NULL);
+	clk_register_clkdev(clk[pcie_ref], "pcie_ref", NULL);
+	clk_register_clkdev(clk[pcie_ref_125m], "pcie_ref_125m", NULL);
+	clk_register_clkdev(clk[pcie_axi], "pcie_axi", NULL);
 
 	if (imx6q_revision() != IMX_CHIP_REVISION_1_0) {
 		clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
--- a/arch/arm/mach-imx/mxc.h
+++ b/arch/arm/mach-imx/mxc.h
@@ -151,6 +151,10 @@ extern unsigned int __mxc_cpu_type;
 # define cpu_is_mx53()		(0)
 #endif
 
+#ifdef CONFIG_SOC_IMX6Q
+#  define mxc_cpu_type __mxc_cpu_type
+#endif
+
 #ifndef __ASSEMBLY__
 static inline bool cpu_is_imx6dl(void)
 {
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -178,6 +178,9 @@ extern int pci_ioremap_io(unsigned int o
  */
 #ifdef CONFIG_NEED_MACH_IO_H
 #include <mach/io.h>
+#elif defined(CONFIG_SOC_IMX6Q) && defined(CONFIG_IMX_PCIE)
+#define IO_SPACE_LIMIT    ((resource_size_t)0xffffffff)
+#define __io(a)     __typesafe_io((a) & IO_SPACE_LIMIT)
 #elif defined(CONFIG_PCI)
 #define IO_SPACE_LIMIT	((resource_size_t)0xfffff)
 #define __io(a)		__typesafe_io(PCI_IO_VIRT_BASE + ((a) & IO_SPACE_LIMIT))