68cb700c59
There's no need to have these in plat-omap any longer. Note that these could eventually be made local to mach-omap1 instead of being in mach. But to do that, at least various driver access using omap7xxx.h registers needs to be fixed first. Cc: spi-devel-general@lists.sourceforge.net Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tony Lindgren <tony@atomide.com>
428 lines
10 KiB
C
428 lines
10 KiB
C
/*
|
|
* linux/arch/arm/mach-omap1/devices.c
|
|
*
|
|
* OMAP1 platform device setup/initialization
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <plat/tc.h>
|
|
#include <plat/mux.h>
|
|
#include <plat/dma.h>
|
|
#include <plat/mmc.h>
|
|
|
|
#include <mach/omap7xx.h>
|
|
#include <mach/camera.h>
|
|
#include <mach/hardware.h>
|
|
|
|
#include "common.h"
|
|
#include "clock.h"
|
|
|
|
#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
|
|
|
|
static struct platform_device omap_pcm = {
|
|
.name = "omap-pcm-audio",
|
|
.id = -1,
|
|
};
|
|
|
|
static void omap_init_audio(void)
|
|
{
|
|
platform_device_register(&omap_pcm);
|
|
}
|
|
|
|
#else
|
|
static inline void omap_init_audio(void) {}
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
|
|
|
|
#define OMAP_RTC_BASE 0xfffb4800
|
|
|
|
static struct resource rtc_resources[] = {
|
|
{
|
|
.start = OMAP_RTC_BASE,
|
|
.end = OMAP_RTC_BASE + 0x5f,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_RTC_TIMER,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.start = INT_RTC_ALARM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device omap_rtc_device = {
|
|
.name = "omap_rtc",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(rtc_resources),
|
|
.resource = rtc_resources,
|
|
};
|
|
|
|
static void omap_init_rtc(void)
|
|
{
|
|
(void) platform_device_register(&omap_rtc_device);
|
|
}
|
|
#else
|
|
static inline void omap_init_rtc(void) {}
|
|
#endif
|
|
|
|
static inline void omap_init_mbox(void) { }
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
|
|
|
|
static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
|
|
int controller_nr)
|
|
{
|
|
if (controller_nr == 0) {
|
|
if (cpu_is_omap7xx()) {
|
|
omap_cfg_reg(MMC_7XX_CMD);
|
|
omap_cfg_reg(MMC_7XX_CLK);
|
|
omap_cfg_reg(MMC_7XX_DAT0);
|
|
} else {
|
|
omap_cfg_reg(MMC_CMD);
|
|
omap_cfg_reg(MMC_CLK);
|
|
omap_cfg_reg(MMC_DAT0);
|
|
}
|
|
|
|
if (cpu_is_omap1710()) {
|
|
omap_cfg_reg(M15_1710_MMC_CLKI);
|
|
omap_cfg_reg(P19_1710_MMC_CMDDIR);
|
|
omap_cfg_reg(P20_1710_MMC_DATDIR0);
|
|
}
|
|
if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
|
|
omap_cfg_reg(MMC_DAT1);
|
|
/* NOTE: DAT2 can be on W10 (here) or M15 */
|
|
if (!mmc_controller->slots[0].nomux)
|
|
omap_cfg_reg(MMC_DAT2);
|
|
omap_cfg_reg(MMC_DAT3);
|
|
}
|
|
}
|
|
|
|
/* Block 2 is on newer chips, and has many pinout options */
|
|
if (cpu_is_omap16xx() && controller_nr == 1) {
|
|
if (!mmc_controller->slots[1].nomux) {
|
|
omap_cfg_reg(Y8_1610_MMC2_CMD);
|
|
omap_cfg_reg(Y10_1610_MMC2_CLK);
|
|
omap_cfg_reg(R18_1610_MMC2_CLKIN);
|
|
omap_cfg_reg(W8_1610_MMC2_DAT0);
|
|
if (mmc_controller->slots[1].wires == 4) {
|
|
omap_cfg_reg(V8_1610_MMC2_DAT1);
|
|
omap_cfg_reg(W15_1610_MMC2_DAT2);
|
|
omap_cfg_reg(R10_1610_MMC2_DAT3);
|
|
}
|
|
|
|
/* These are needed for the level shifter */
|
|
omap_cfg_reg(V9_1610_MMC2_CMDDIR);
|
|
omap_cfg_reg(V5_1610_MMC2_DATDIR0);
|
|
omap_cfg_reg(W19_1610_MMC2_DATDIR1);
|
|
}
|
|
|
|
/* Feedback clock must be set on OMAP-1710 MMC2 */
|
|
if (cpu_is_omap1710())
|
|
omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
|
|
MOD_CONF_CTRL_1);
|
|
}
|
|
}
|
|
|
|
#define OMAP_MMC_NR_RES 4
|
|
|
|
/*
|
|
* Register MMC devices.
|
|
*/
|
|
static int __init omap_mmc_add(const char *name, int id, unsigned long base,
|
|
unsigned long size, unsigned int irq,
|
|
unsigned rx_req, unsigned tx_req,
|
|
struct omap_mmc_platform_data *data)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct resource res[OMAP_MMC_NR_RES];
|
|
int ret;
|
|
|
|
pdev = platform_device_alloc(name, id);
|
|
if (!pdev)
|
|
return -ENOMEM;
|
|
|
|
memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
|
|
res[0].start = base;
|
|
res[0].end = base + size - 1;
|
|
res[0].flags = IORESOURCE_MEM;
|
|
res[1].start = res[1].end = irq;
|
|
res[1].flags = IORESOURCE_IRQ;
|
|
res[2].start = rx_req;
|
|
res[2].name = "rx";
|
|
res[2].flags = IORESOURCE_DMA;
|
|
res[3].start = tx_req;
|
|
res[3].name = "tx";
|
|
res[3].flags = IORESOURCE_DMA;
|
|
|
|
ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
|
|
if (ret == 0)
|
|
ret = platform_device_add_data(pdev, data, sizeof(*data));
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = platform_device_add(pdev);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
/* return device handle to board setup code */
|
|
data->dev = &pdev->dev;
|
|
return 0;
|
|
|
|
fail:
|
|
platform_device_put(pdev);
|
|
return ret;
|
|
}
|
|
|
|
void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
|
|
int nr_controllers)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nr_controllers; i++) {
|
|
unsigned long base, size;
|
|
unsigned rx_req, tx_req;
|
|
unsigned int irq = 0;
|
|
|
|
if (!mmc_data[i])
|
|
continue;
|
|
|
|
omap1_mmc_mux(mmc_data[i], i);
|
|
|
|
switch (i) {
|
|
case 0:
|
|
base = OMAP1_MMC1_BASE;
|
|
irq = INT_MMC;
|
|
rx_req = OMAP_DMA_MMC_RX;
|
|
tx_req = OMAP_DMA_MMC_TX;
|
|
break;
|
|
case 1:
|
|
if (!cpu_is_omap16xx())
|
|
return;
|
|
base = OMAP1_MMC2_BASE;
|
|
irq = INT_1610_MMC2;
|
|
rx_req = OMAP_DMA_MMC2_RX;
|
|
tx_req = OMAP_DMA_MMC2_TX;
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
size = OMAP1_MMC_SIZE;
|
|
|
|
omap_mmc_add("mmci-omap", i, base, size, irq,
|
|
rx_req, tx_req, mmc_data[i]);
|
|
};
|
|
}
|
|
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
/* OMAP7xx SPI support */
|
|
#if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
|
|
|
|
struct platform_device omap_spi1 = {
|
|
.name = "omap1_spi100k",
|
|
.id = 1,
|
|
};
|
|
|
|
struct platform_device omap_spi2 = {
|
|
.name = "omap1_spi100k",
|
|
.id = 2,
|
|
};
|
|
|
|
static void omap_init_spi100k(void)
|
|
{
|
|
omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
|
|
if (omap_spi1.dev.platform_data)
|
|
platform_device_register(&omap_spi1);
|
|
|
|
omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
|
|
if (omap_spi2.dev.platform_data)
|
|
platform_device_register(&omap_spi2);
|
|
}
|
|
|
|
#else
|
|
static inline void omap_init_spi100k(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
|
|
#define OMAP1_CAMERA_BASE 0xfffb6800
|
|
#define OMAP1_CAMERA_IOSIZE 0x1c
|
|
|
|
static struct resource omap1_camera_resources[] = {
|
|
[0] = {
|
|
.start = OMAP1_CAMERA_BASE,
|
|
.end = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = INT_CAMERA,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device omap1_camera_device = {
|
|
.name = "omap1-camera",
|
|
.id = 0, /* This is used to put cameras on this interface */
|
|
.dev = {
|
|
.dma_mask = &omap1_camera_dma_mask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap1_camera_resources),
|
|
.resource = omap1_camera_resources,
|
|
};
|
|
|
|
void __init omap1_camera_init(void *info)
|
|
{
|
|
struct platform_device *dev = &omap1_camera_device;
|
|
int ret;
|
|
|
|
dev->dev.platform_data = info;
|
|
|
|
ret = platform_device_register(dev);
|
|
if (ret)
|
|
dev_err(&dev->dev, "unable to register device: %d\n", ret);
|
|
}
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static inline void omap_init_sti(void) {}
|
|
|
|
/* Numbering for the SPI-capable controllers when used for SPI:
|
|
* spi = 1
|
|
* uwire = 2
|
|
* mmc1..2 = 3..4
|
|
* mcbsp1..3 = 5..7
|
|
*/
|
|
|
|
#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
|
|
|
|
#define OMAP_UWIRE_BASE 0xfffb3000
|
|
|
|
static struct resource uwire_resources[] = {
|
|
{
|
|
.start = OMAP_UWIRE_BASE,
|
|
.end = OMAP_UWIRE_BASE + 0x20,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct platform_device omap_uwire_device = {
|
|
.name = "omap_uwire",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(uwire_resources),
|
|
.resource = uwire_resources,
|
|
};
|
|
|
|
static void omap_init_uwire(void)
|
|
{
|
|
/* FIXME define and use a boot tag; not all boards will be hooking
|
|
* up devices to the microwire controller, and multi-board configs
|
|
* mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
|
|
*/
|
|
|
|
/* board-specific code must configure chipselects (only a few
|
|
* are normally used) and SCLK/SDI/SDO (each has two choices).
|
|
*/
|
|
(void) platform_device_register(&omap_uwire_device);
|
|
}
|
|
#else
|
|
static inline void omap_init_uwire(void) {}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* This gets called after board-specific INIT_MACHINE, and initializes most
|
|
* on-chip peripherals accessible on this board (except for few like USB):
|
|
*
|
|
* (a) Does any "standard config" pin muxing needed. Board-specific
|
|
* code will have muxed GPIO pins and done "nonstandard" setup;
|
|
* that code could live in the boot loader.
|
|
* (b) Populating board-specific platform_data with the data drivers
|
|
* rely on to handle wiring variations.
|
|
* (c) Creating platform devices as meaningful on this board and
|
|
* with this kernel configuration.
|
|
*
|
|
* Claiming GPIOs, and setting their direction and initial values, is the
|
|
* responsibility of the device drivers. So is responding to probe().
|
|
*
|
|
* Board-specific knowledge like creating devices or pin setup is to be
|
|
* kept out of drivers as much as possible. In particular, pin setup
|
|
* may be handled by the boot loader, and drivers should expect it will
|
|
* normally have been done by the time they're probed.
|
|
*/
|
|
static int __init omap1_init_devices(void)
|
|
{
|
|
if (!cpu_class_is_omap1())
|
|
return -ENODEV;
|
|
|
|
omap_sram_init();
|
|
omap1_clk_late_init();
|
|
|
|
/* please keep these calls, and their implementations above,
|
|
* in alphabetical order so they're easier to sort through.
|
|
*/
|
|
|
|
omap_init_audio();
|
|
omap_init_mbox();
|
|
omap_init_rtc();
|
|
omap_init_spi100k();
|
|
omap_init_sti();
|
|
omap_init_uwire();
|
|
|
|
return 0;
|
|
}
|
|
arch_initcall(omap1_init_devices);
|
|
|
|
#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
|
|
|
|
static struct resource wdt_resources[] = {
|
|
{
|
|
.start = 0xfffeb000,
|
|
.end = 0xfffeb07F,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct platform_device omap_wdt_device = {
|
|
.name = "omap_wdt",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(wdt_resources),
|
|
.resource = wdt_resources,
|
|
};
|
|
|
|
static int __init omap_init_wdt(void)
|
|
{
|
|
if (!cpu_is_omap16xx())
|
|
return -ENODEV;
|
|
|
|
return platform_device_register(&omap_wdt_device);
|
|
}
|
|
subsys_initcall(omap_init_wdt);
|
|
#endif
|