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authorLennert Buytenhek <buytenh@wantstofly.org>2010-12-14 12:54:03 +0100
committerNicolas Pitre <nico@fluxnic.net>2011-03-03 16:27:02 -0500
commit9eac6d0a4e7e5149a7f86575b46d710ad2e05fe2 (patch)
tree3f3eb4504f3221954a5adaae66e417d9a0883e71 /arch/arm/mach-kirkwood
parent4ee1f6b574765a6c97f945e6b0277e5ccac38cb5 (diff)
downloadtalos-obmc-linux-9eac6d0a4e7e5149a7f86575b46d710ad2e05fe2.tar.gz
talos-obmc-linux-9eac6d0a4e7e5149a7f86575b46d710ad2e05fe2.zip
ARM: Remove dependency of plat-orion GPIO code on mach directory includes.
This patch makes the various mach dirs that use the plat-orion GPIO code pass in GPIO-related platform info (GPIO controller base address, secondary base IRQ number, etc) explicitly, instead of having plat-orion get those values by including a mach dir include file -- the latter mechanism is problematic if you want to support multiple ARM platforms in the same kernel image. Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Diffstat (limited to 'arch/arm/mach-kirkwood')
-rw-r--r--arch/arm/mach-kirkwood/include/mach/gpio.h29
-rw-r--r--arch/arm/mach-kirkwood/include/mach/kirkwood.h2
-rw-r--r--arch/arm/mach-kirkwood/irq.c22
-rw-r--r--arch/arm/mach-kirkwood/mpp.c3
4 files changed, 8 insertions, 48 deletions
diff --git a/arch/arm/mach-kirkwood/include/mach/gpio.h b/arch/arm/mach-kirkwood/include/mach/gpio.h
index 81b335eb62ec..84f340b546c0 100644
--- a/arch/arm/mach-kirkwood/include/mach/gpio.h
+++ b/arch/arm/mach-kirkwood/include/mach/gpio.h
@@ -6,33 +6,4 @@
* warranty of any kind, whether express or implied.
*/
-#ifndef __ASM_ARCH_GPIO_H
-#define __ASM_ARCH_GPIO_H
-
-#include <mach/irqs.h>
#include <plat/gpio.h>
-#include <asm-generic/gpio.h> /* cansleep wrappers */
-
-#define GPIO_MAX 50
-#define GPIO_OFF(pin) (((pin) >> 5) ? 0x0140 : 0x0100)
-#define GPIO_OUT(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x00)
-#define GPIO_IO_CONF(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x04)
-#define GPIO_BLINK_EN(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x08)
-#define GPIO_IN_POL(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x0c)
-#define GPIO_DATA_IN(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x10)
-#define GPIO_EDGE_CAUSE(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x14)
-#define GPIO_EDGE_MASK(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x18)
-#define GPIO_LEVEL_MASK(pin) (DEV_BUS_VIRT_BASE + GPIO_OFF(pin) + 0x1c)
-
-static inline int gpio_to_irq(int pin)
-{
- return pin + IRQ_KIRKWOOD_GPIO_START;
-}
-
-static inline int irq_to_gpio(int irq)
-{
- return irq - IRQ_KIRKWOOD_GPIO_START;
-}
-
-
-#endif
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 6e924b398919..010bdeb4ac5f 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -69,6 +69,8 @@
#define DEV_BUS_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x10000)
#define SAMPLE_AT_RESET (DEV_BUS_VIRT_BASE | 0x0030)
#define DEVICE_ID (DEV_BUS_VIRT_BASE | 0x0034)
+#define GPIO_LOW_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x0100)
+#define GPIO_HIGH_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x0140)
#define RTC_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x0300)
#define SPI_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x0600)
#define I2C_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x1000)
diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c
index 28020abf49e1..cbdb5863d13b 100644
--- a/arch/arm/mach-kirkwood/irq.c
+++ b/arch/arm/mach-kirkwood/irq.c
@@ -27,31 +27,21 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
void __init kirkwood_init_irq(void)
{
- int i;
-
orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF));
orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF));
/*
- * Mask and clear GPIO IRQ interrupts.
+ * Initialize gpiolib for GPIOs 0-49.
*/
- writel(0, GPIO_LEVEL_MASK(0));
- writel(0, GPIO_EDGE_MASK(0));
- writel(0, GPIO_EDGE_CAUSE(0));
- writel(0, GPIO_LEVEL_MASK(32));
- writel(0, GPIO_EDGE_MASK(32));
- writel(0, GPIO_EDGE_CAUSE(32));
-
- for (i = IRQ_KIRKWOOD_GPIO_START; i < NR_IRQS; i++) {
- set_irq_chip(i, &orion_gpio_irq_chip);
- set_irq_handler(i, handle_level_irq);
- irq_desc[i].status |= IRQ_LEVEL;
- set_irq_flags(i, IRQF_VALID);
- }
+ orion_gpio_init(0, 32, GPIO_LOW_VIRT_BASE, 0,
+ IRQ_KIRKWOOD_GPIO_START);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler);
+
+ orion_gpio_init(32, 18, GPIO_HIGH_VIRT_BASE, 0,
+ IRQ_KIRKWOOD_GPIO_START + 32);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler);
set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23, gpio_irq_handler);
diff --git a/arch/arm/mach-kirkwood/mpp.c b/arch/arm/mach-kirkwood/mpp.c
index 27901f702feb..7ce201848067 100644
--- a/arch/arm/mach-kirkwood/mpp.c
+++ b/arch/arm/mach-kirkwood/mpp.c
@@ -49,9 +49,6 @@ void __init kirkwood_mpp_conf(unsigned int *mpp_list)
if (!variant_mask)
return;
- /* Initialize gpiolib. */
- orion_gpio_init();
-
printk(KERN_DEBUG "initial MPP regs:");
for (i = 0; i < MPP_NR_REGS; i++) {
mpp_ctrl[i] = readl(MPP_CTRL(i));
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