Commit 742759ea authored by Paul Mundt's avatar Paul Mundt
Browse files

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: default avatarPaul Mundt <lethal@linux-sh.org>
parent 720a6bd7

arch/sh/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/sh/kernel/cpu/sh4a/setup-shx3.c

+24 −0
Original line number Diff line number Diff line
@@ -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:

CRA Git | Maintained and supported by SUSTech CRA and CCSE