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gemini: add Linux 4.4 support

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Signed-off-by: Roman Yeryomin <roman@advem.lv>
[Jo-Philipp Wich: change commit title]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Roman Yeryomin
2016-08-22 02:36:50 +03:00
committed by Jo-Philipp Wich
parent e58c20aac3
commit f046737e92
24 changed files with 6220 additions and 0 deletions
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66
target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch Normal file
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@@ -0,0 +1,66 @@
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -399,6 +399,7 @@ config ARCH_GEMINI
select CLKSRC_MMIO
select CPU_FA526
select GENERIC_CLOCKEVENTS
+ select MIGHT_HAVE_PCI
help
Support for the Cortina Systems Gemini family SoCs
--- a/arch/arm/mach-gemini/include/mach/hardware.h
+++ b/arch/arm/mach-gemini/include/mach/hardware.h
@@ -68,4 +68,9 @@
*/
#define IO_ADDRESS(x) IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
+/*
+ * PCI subsystem macros
+ */
+#define pcibios_assign_all_busses() 1
+
#endif
--- a/arch/arm/mach-gemini/include/mach/irqs.h
+++ b/arch/arm/mach-gemini/include/mach/irqs.h
@@ -43,11 +43,14 @@
#define NORMAL_IRQ_NUM 32
-#define GPIO_IRQ_BASE NORMAL_IRQ_NUM
+#define PCI_IRQ_BASE NORMAL_IRQ_NUM
+#define PCI_IRQ_NUM 4
+
+#define GPIO_IRQ_BASE (NORMAL_IRQ_NUM + PCI_IRQ_NUM)
#define GPIO_IRQ_NUM (3 * 32)
#define ARCH_TIMER_IRQ IRQ_TIMER2
-#define NR_IRQS (NORMAL_IRQ_NUM + GPIO_IRQ_NUM)
+#define NR_IRQS (NORMAL_IRQ_NUM + PCI_IRQ_NUM + GPIO_IRQ_NUM)
#endif /* __MACH_IRQS_H__ */
--- a/arch/arm/mach-gemini/Makefile
+++ b/arch/arm/mach-gemini/Makefile
@@ -6,6 +6,8 @@
obj-y := irq.o mm.o time.o devices.o gpio.o idle.o reset.o
+obj-$(CONFIG_PCI) += pci.o
+
# Board-specific support
obj-$(CONFIG_MACH_NAS4220B) += board-nas4220b.o
obj-$(CONFIG_MACH_RUT100) += board-rut1xx.o
--- a/arch/arm/mach-gemini/mm.c
+++ b/arch/arm/mach-gemini/mm.c
@@ -59,6 +59,11 @@ static struct map_desc gemini_io_desc[]
.length = SZ_512K,
.type = MT_DEVICE,
}, {
+ .virtual = (unsigned long)IO_ADDRESS(GEMINI_PCI_IO_BASE),
+ .pfn = __phys_to_pfn(GEMINI_PCI_IO_BASE),
+ .length = SZ_512K,
+ .type = MT_DEVICE,
+ }, {
.virtual = (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
.pfn = __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
.length = SZ_512K,