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sh: Handle pinmux for SH-X3 proto IRQ/IRL modes. 

The SH-X3 proto CPU has all of the external IRQ and IRL pins muxed, make
sure that we're able to grab them before attempting to register their
respective IRQ controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-10-02 19:43:40 +09:00
parent 720a6bd785
commit 742759eae6
2 changed files with 25 additions and 0 deletions
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1
arch/sh/Kconfig
View File

@ -466,6 +466,7 @@ config CPU_SUBTYPE_SHX3
select CPU_SH4A
select CPU_SHX3
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select ARCH_REQUIRE_GPIOLIB
# SH4AL-DSP Processor Support

24
arch/sh/kernel/cpu/sh4a/setup-shx3.c
View File

@ -12,7 +12,9 @@
#include <linux/serial.h>
#include <linux/serial_sci.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/sh_timer.h>
#include <cpu/shx3.h>
#include <asm/mmzone.h>
/*
@ -440,11 +442,33 @@ static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups,
void __init plat_irq_setup_pins(int mode)
{
int ret = 0;
switch (mode) {
case IRQ_MODE_IRQ:
ret |= gpio_request(GPIO_FN_IRQ3, intc_desc_irq.name);
ret |= gpio_request(GPIO_FN_IRQ2, intc_desc_irq.name);
ret |= gpio_request(GPIO_FN_IRQ1, intc_desc_irq.name);
ret |= gpio_request(GPIO_FN_IRQ0, intc_desc_irq.name);
if (unlikely(ret)) {
pr_err("Failed to set IRQ mode\n");
return;
}
register_intc_controller(&intc_desc_irq);
break;
case IRQ_MODE_IRL3210:
ret |= gpio_request(GPIO_FN_IRL3, intc_desc_irl.name);
ret |= gpio_request(GPIO_FN_IRL2, intc_desc_irl.name);
ret |= gpio_request(GPIO_FN_IRL1, intc_desc_irl.name);
ret |= gpio_request(GPIO_FN_IRL0, intc_desc_irl.name);
if (unlikely(ret)) {
pr_err("Failed to set IRL mode\n");
return;
}
register_intc_controller(&intc_desc_irl);
break;
default: