summaryrefslogtreecommitdiff
path: root/target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch')
-rw-r--r--target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch128
1 files changed, 128 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch b/target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch
new file mode 100644
index 0000000..a487d52
--- /dev/null
+++ b/target/linux/cns3xxx/patches-3.3/100-gpio_irq.patch
@@ -0,0 +1,128 @@
+--- a/arch/arm/mach-cns3xxx/Makefile
++++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -1,4 +1,4 @@
+-obj-$(CONFIG_ARCH_CNS3XXX) += core.o pm.o devices.o
++obj-$(CONFIG_ARCH_CNS3XXX) += core.o gpio.o pm.o devices.o
+ obj-$(CONFIG_PCI) += pcie.o
+ obj-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o
+ obj-$(CONFIG_SMP) += platsmp.o headsmp.o cns3xxx_fiq.o
+--- a/arch/arm/mach-cns3xxx/cns3420vb.c
++++ b/arch/arm/mach-cns3xxx/cns3420vb.c
+@@ -198,6 +198,10 @@ static void __init cns3420_init(void)
+
+ cns3xxx_ahci_init();
+ cns3xxx_sdhci_init();
++ cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA,
++ NR_IRQS_CNS3XXX);
++ cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB,
++ NR_IRQS_CNS3XXX + 32);
+
+ pm_power_off = cns3xxx_power_off;
+ }
+--- a/arch/arm/mach-cns3xxx/core.c
++++ b/arch/arm/mach-cns3xxx/core.c
+@@ -21,7 +21,6 @@
+ #include <asm/hardware/gic.h>
+ #include <asm/smp_twd.h>
+ #include <asm/hardware/cache-l2x0.h>
+-#include <asm/gpio.h>
+ #include <mach/cns3xxx.h>
+ #include "core.h"
+
+@@ -83,73 +82,12 @@ static struct map_desc cns3xxx_io_desc[]
+ },
+ };
+
+-static inline void gpio_line_config(u8 line, u32 direction)
+-{
+- u32 reg;
+- if (direction) {
+- if (line < 32) {
+- reg = __raw_readl(CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- reg |= (1 << line);
+- __raw_writel(reg, CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- } else {
+- reg = __raw_readl(CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- reg |= (1 << (line - 32));
+- __raw_writel(reg, CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- }
+- } else {
+- if (line < 32) {
+- reg = __raw_readl(CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- reg &= ~(1 << line);
+- __raw_writel(reg, CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- } else {
+- reg = __raw_readl(CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- reg &= ~(1 << (line - 32));
+- __raw_writel(reg, CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
+- }
+- }
+-}
+-
+-static int cns3xxx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+-{
+- gpio_line_config(gpio, CNS3XXX_GPIO_IN);
+- return 0;
+-}
+-
+-static int cns3xxx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
+-{
+- gpio_line_set(gpio, level);
+- gpio_line_config(gpio, CNS3XXX_GPIO_OUT);
+- return 0;
+-}
+-
+-static int cns3xxx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+-{
+- return gpio_get_value(gpio);
+-}
+-
+-static void cns3xxx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
+-{
+- gpio_set_value(gpio, value);
+-}
+-
+-static struct gpio_chip cns3xxx_gpio_chip = {
+- .label = "CNS3XXX_GPIO_CHIP",
+- .direction_input = cns3xxx_gpio_direction_input,
+- .direction_output = cns3xxx_gpio_direction_output,
+- .get = cns3xxx_gpio_get_value,
+- .set = cns3xxx_gpio_set_value,
+- .base = 0,
+- .ngpio = 64,
+-};
+-
+ void __init cns3xxx_common_init(void)
+ {
+ #ifdef CONFIG_LOCAL_TIMERS
+ twd_base = (void __iomem *) CNS3XXX_TC11MP_TWD_BASE_VIRT;
+ #endif
+ iotable_init(cns3xxx_io_desc, ARRAY_SIZE(cns3xxx_io_desc));
+-
+- gpiochip_add(&cns3xxx_gpio_chip);
+ }
+
+ /* used by entry-macro.S */
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -366,7 +366,8 @@ config ARCH_CLPS711X
+ config ARCH_CNS3XXX
+ bool "Cavium Networks CNS3XXX family"
+ select CPU_V6K
+- select ARCH_WANT_OPTIONAL_GPIOLIB
++ select ARCH_REQUIRE_GPIOLIB
++ select GENERIC_IRQ_CHIP
+ select GENERIC_CLOCKEVENTS
+ select ARM_GIC
+ select CLKDEV_LOOKUP
+--- a/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h
++++ b/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h
+@@ -627,7 +627,7 @@ int cns3xxx_cpu_clock(void);
+
+ #if !defined(NR_IRQS) || (NR_IRQS < NR_IRQS_CNS3XXX)
+ #undef NR_IRQS
+-#define NR_IRQS NR_IRQS_CNS3XXX
++#define NR_IRQS (NR_IRQS_CNS3XXX + 64)
+ #endif
+
+ #endif /* __MACH_BOARD_CNS3XXX_H */