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MIPS: Lantiq: Add platform device support 

This patch adds the wrappers for registering our platform devices.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2254/
Patchwork: https://patchwork.linux-mips.org/patch/2360/
Patchwork: https://patchwork.linux-mips.org/patch/2359/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
John Crispin 2011-03-30 09:27:53 +02:00 committed by Ralf Baechle
parent 3c5447390c
commit 24aff71fa8
6 changed files with 263 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/lantiq/Makefile
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@ -4,7 +4,7 @@
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
obj-y := irq.o setup.o clk.o prom.o
obj-y := irq.o setup.o clk.o prom.o devices.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o

122
arch/mips/lantiq/devices.c Normal file
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@ -0,0 +1,122 @@
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/etherdevice.h>
#include <linux/reboot.h>
#include <linux/time.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <lantiq_soc.h>
#include "devices.h"
/* nor flash */
static struct resource ltq_nor_resource = {
.name = "nor",
.start = LTQ_FLASH_START,
.end = LTQ_FLASH_START + LTQ_FLASH_MAX - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device ltq_nor = {
.name = "ltq_nor",
.resource = &ltq_nor_resource,
.num_resources = 1,
};
void __init ltq_register_nor(struct physmap_flash_data *data)
{
ltq_nor.dev.platform_data = data;
platform_device_register(&ltq_nor);
}
/* watchdog */
static struct resource ltq_wdt_resource = {
.name = "watchdog",
.start = LTQ_WDT_BASE_ADDR,
.end = LTQ_WDT_BASE_ADDR + LTQ_WDT_SIZE - 1,
.flags = IORESOURCE_MEM,
};
void __init ltq_register_wdt(void)
{
platform_device_register_simple("ltq_wdt", 0, &ltq_wdt_resource, 1);
}
/* asc ports */
static struct resource ltq_asc0_resources[] = {
{
.name = "asc0",
.start = LTQ_ASC0_BASE_ADDR,
.end = LTQ_ASC0_BASE_ADDR + LTQ_ASC_SIZE - 1,
.flags = IORESOURCE_MEM,
},
IRQ_RES(tx, LTQ_ASC_TIR(0)),
IRQ_RES(rx, LTQ_ASC_RIR(0)),
IRQ_RES(err, LTQ_ASC_EIR(0)),
};
static struct resource ltq_asc1_resources[] = {
{
.name = "asc1",
.start = LTQ_ASC1_BASE_ADDR,
.end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
.flags = IORESOURCE_MEM,
},
IRQ_RES(tx, LTQ_ASC_TIR(1)),
IRQ_RES(rx, LTQ_ASC_RIR(1)),
IRQ_RES(err, LTQ_ASC_EIR(1)),
};
void __init ltq_register_asc(int port)
{
switch (port) {
case 0:
platform_device_register_simple("ltq_asc", 0,
ltq_asc0_resources, ARRAY_SIZE(ltq_asc0_resources));
break;
case 1:
platform_device_register_simple("ltq_asc", 1,
ltq_asc1_resources, ARRAY_SIZE(ltq_asc1_resources));
break;
default:
break;
}
}
#ifdef CONFIG_PCI
/* pci */
static struct platform_device ltq_pci = {
.name = "ltq_pci",
.num_resources = 0,
};
void __init ltq_register_pci(struct ltq_pci_data *data)
{
ltq_pci.dev.platform_data = data;
platform_device_register(&ltq_pci);
}
#else
void __init ltq_register_pci(struct ltq_pci_data *data)
{
pr_err("kernel is compiled without PCI support\n");
}
#endif

23
arch/mips/lantiq/devices.h Normal file
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@ -0,0 +1,23 @@
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#ifndef _LTQ_DEVICES_H__
#define _LTQ_DEVICES_H__
#include <lantiq_platform.h>
#include <linux/mtd/physmap.h>
#define IRQ_RES(resname, irq) \
{.name = #resname, .start = (irq), .flags = IORESOURCE_IRQ}
extern void ltq_register_nor(struct physmap_flash_data *data);
extern void ltq_register_wdt(void);
extern void ltq_register_asc(int port);
extern void ltq_register_pci(struct ltq_pci_data *data);
#endif

2
arch/mips/lantiq/xway/Makefile
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@ -1,4 +1,4 @@
obj-y := pmu.o ebu.o reset.o gpio.o
obj-y := pmu.o ebu.o reset.o gpio.o devices.o
obj-$(CONFIG_SOC_XWAY) += clk-xway.o prom-xway.o
obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o prom-ase.o

98
arch/mips/lantiq/xway/devices.c Normal file
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@ -0,0 +1,98 @@
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mtd/physmap.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/etherdevice.h>
#include <linux/reboot.h>
#include <linux/time.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <lantiq_soc.h>
#include <lantiq_irq.h>
#include <lantiq_platform.h>
#include "devices.h"
/* gpio */
static struct resource ltq_gpio_resource[] = {
{
.name = "gpio0",
.start = LTQ_GPIO0_BASE_ADDR,
.end = LTQ_GPIO0_BASE_ADDR + LTQ_GPIO_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.name = "gpio1",
.start = LTQ_GPIO1_BASE_ADDR,
.end = LTQ_GPIO1_BASE_ADDR + LTQ_GPIO_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.name = "gpio2",
.start = LTQ_GPIO2_BASE_ADDR,
.end = LTQ_GPIO2_BASE_ADDR + LTQ_GPIO_SIZE - 1,
.flags = IORESOURCE_MEM,
}
};
void __init ltq_register_gpio(void)
{
platform_device_register_simple("ltq_gpio", 0,
&ltq_gpio_resource[0], 1);
platform_device_register_simple("ltq_gpio", 1,
&ltq_gpio_resource[1], 1);
/* AR9 and VR9 have an extra gpio block */
if (ltq_is_ar9() || ltq_is_vr9()) {
platform_device_register_simple("ltq_gpio", 2,
&ltq_gpio_resource[2], 1);
}
}
/* serial to parallel conversion */
static struct resource ltq_stp_resource = {
.name = "stp",
.start = LTQ_STP_BASE_ADDR,
.end = LTQ_STP_BASE_ADDR + LTQ_STP_SIZE - 1,
.flags = IORESOURCE_MEM,
};
void __init ltq_register_gpio_stp(void)
{
platform_device_register_simple("ltq_stp", 0, &ltq_stp_resource, 1);
}
/* asc ports - amazon se has its own serial mapping */
static struct resource ltq_ase_asc_resources[] = {
{
.name = "asc0",
.start = LTQ_ASC1_BASE_ADDR,
.end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
.flags = IORESOURCE_MEM,
},
IRQ_RES(tx, LTQ_ASC_ASE_TIR),
IRQ_RES(rx, LTQ_ASC_ASE_RIR),
IRQ_RES(err, LTQ_ASC_ASE_EIR),
};
void __init ltq_register_ase_asc(void)
{
platform_device_register_simple("ltq_asc", 0,
ltq_ase_asc_resources, ARRAY_SIZE(ltq_ase_asc_resources));
}

18
arch/mips/lantiq/xway/devices.h Normal file
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@ -0,0 +1,18 @@
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#ifndef _LTQ_DEVICES_XWAY_H__
#define _LTQ_DEVICES_XWAY_H__
#include "../devices.h"
extern void ltq_register_gpio(void);
extern void ltq_register_gpio_stp(void);
extern void ltq_register_ase_asc(void);
#endif