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![Jarkko Nikula](/assets/img/avatar_default.png)
Similarly than with OMAP2 there are many DMA channel definitions that have been moved or redefined in drivers using them and we can remove them from dma.h. There is exception with MMC that arch/arm/mach-omap1/devices.c is using MMC DMA channel definitions for setting platform data but those can be well replaced with numeric values. Remove dma.h include from arch/arm/mach-omap1/devices.c and use a script below for dropping duplicated definitions and for replacing definitions with DMA channel numbers. grep '#define OMAP_DMA' arch/arm/mach-omap1/dma.h | while read -r i; do \ DDEF=`echo $i |cut -d ' ' -f 1-2`; \ DEF=`echo $DDEF |cut -d ' ' -f 2`; \ CH=`echo $i |cut -d ' ' -f 3`; \ if [ `git grep -c "$DDEF" |wc -l` -gt 1 ]; then \ echo "removing" $DEF; \ sed -i "s/${DEF}/${CH}/" arch/arm/mach-omap1/devices.c; \ sed -i "/${DDEF}/d" arch/arm/mach-omap1/dma.h; \ fi; \ done Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
478 lines
11 KiB
C
478 lines
11 KiB
C
/*
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* linux/arch/arm/mach-omap1/devices.c
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*
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* OMAP1 platform device setup/initialization
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/dma-mapping.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/platform_data/omap-wd-timer.h>
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#include <asm/mach/map.h>
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#include <mach/tc.h>
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#include <mach/mux.h>
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#include <mach/omap7xx.h>
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#include <mach/camera.h>
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#include <mach/hardware.h>
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#include "common.h"
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#include "clock.h"
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#include "mmc.h"
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#include "sram.h"
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#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
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static struct platform_device omap_pcm = {
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.name = "omap-pcm-audio",
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.id = -1,
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};
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static void omap_init_audio(void)
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{
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platform_device_register(&omap_pcm);
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}
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#else
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static inline void omap_init_audio(void) {}
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#endif
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/*-------------------------------------------------------------------------*/
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#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
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#define OMAP_RTC_BASE 0xfffb4800
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static struct resource rtc_resources[] = {
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{
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.start = OMAP_RTC_BASE,
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.end = OMAP_RTC_BASE + 0x5f,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_RTC_TIMER,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = INT_RTC_ALARM,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device omap_rtc_device = {
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.name = "omap_rtc",
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.id = -1,
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.num_resources = ARRAY_SIZE(rtc_resources),
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.resource = rtc_resources,
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};
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static void omap_init_rtc(void)
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{
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(void) platform_device_register(&omap_rtc_device);
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}
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#else
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static inline void omap_init_rtc(void) {}
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#endif
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static inline void omap_init_mbox(void) { }
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/*-------------------------------------------------------------------------*/
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#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
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static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
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int controller_nr)
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{
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if (controller_nr == 0) {
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if (cpu_is_omap7xx()) {
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omap_cfg_reg(MMC_7XX_CMD);
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omap_cfg_reg(MMC_7XX_CLK);
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omap_cfg_reg(MMC_7XX_DAT0);
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} else {
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omap_cfg_reg(MMC_CMD);
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omap_cfg_reg(MMC_CLK);
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omap_cfg_reg(MMC_DAT0);
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}
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if (cpu_is_omap1710()) {
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omap_cfg_reg(M15_1710_MMC_CLKI);
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omap_cfg_reg(P19_1710_MMC_CMDDIR);
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omap_cfg_reg(P20_1710_MMC_DATDIR0);
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}
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if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
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omap_cfg_reg(MMC_DAT1);
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/* NOTE: DAT2 can be on W10 (here) or M15 */
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if (!mmc_controller->slots[0].nomux)
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omap_cfg_reg(MMC_DAT2);
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omap_cfg_reg(MMC_DAT3);
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}
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}
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/* Block 2 is on newer chips, and has many pinout options */
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if (cpu_is_omap16xx() && controller_nr == 1) {
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if (!mmc_controller->slots[1].nomux) {
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omap_cfg_reg(Y8_1610_MMC2_CMD);
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omap_cfg_reg(Y10_1610_MMC2_CLK);
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omap_cfg_reg(R18_1610_MMC2_CLKIN);
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omap_cfg_reg(W8_1610_MMC2_DAT0);
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if (mmc_controller->slots[1].wires == 4) {
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omap_cfg_reg(V8_1610_MMC2_DAT1);
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omap_cfg_reg(W15_1610_MMC2_DAT2);
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omap_cfg_reg(R10_1610_MMC2_DAT3);
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}
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/* These are needed for the level shifter */
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omap_cfg_reg(V9_1610_MMC2_CMDDIR);
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omap_cfg_reg(V5_1610_MMC2_DATDIR0);
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omap_cfg_reg(W19_1610_MMC2_DATDIR1);
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}
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/* Feedback clock must be set on OMAP-1710 MMC2 */
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if (cpu_is_omap1710())
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omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
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MOD_CONF_CTRL_1);
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}
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}
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#define OMAP_MMC_NR_RES 4
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/*
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* Register MMC devices.
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*/
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static int __init omap_mmc_add(const char *name, int id, unsigned long base,
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unsigned long size, unsigned int irq,
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unsigned rx_req, unsigned tx_req,
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struct omap_mmc_platform_data *data)
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{
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struct platform_device *pdev;
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struct resource res[OMAP_MMC_NR_RES];
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int ret;
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pdev = platform_device_alloc(name, id);
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if (!pdev)
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return -ENOMEM;
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memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
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res[0].start = base;
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res[0].end = base + size - 1;
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res[0].flags = IORESOURCE_MEM;
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res[1].start = res[1].end = irq;
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res[1].flags = IORESOURCE_IRQ;
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res[2].start = rx_req;
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res[2].name = "rx";
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res[2].flags = IORESOURCE_DMA;
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res[3].start = tx_req;
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res[3].name = "tx";
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res[3].flags = IORESOURCE_DMA;
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if (cpu_is_omap7xx())
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data->slots[0].features = MMC_OMAP7XX;
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if (cpu_is_omap15xx())
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data->slots[0].features = MMC_OMAP15XX;
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if (cpu_is_omap16xx())
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data->slots[0].features = MMC_OMAP16XX;
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ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
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if (ret == 0)
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ret = platform_device_add_data(pdev, data, sizeof(*data));
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if (ret)
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goto fail;
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ret = platform_device_add(pdev);
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if (ret)
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goto fail;
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/* return device handle to board setup code */
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data->dev = &pdev->dev;
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return 0;
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fail:
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platform_device_put(pdev);
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return ret;
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}
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void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
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int nr_controllers)
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{
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int i;
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for (i = 0; i < nr_controllers; i++) {
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unsigned long base, size;
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unsigned rx_req, tx_req;
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unsigned int irq = 0;
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if (!mmc_data[i])
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continue;
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omap1_mmc_mux(mmc_data[i], i);
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switch (i) {
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case 0:
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base = OMAP1_MMC1_BASE;
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irq = INT_MMC;
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rx_req = 22;
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tx_req = 21;
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break;
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case 1:
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if (!cpu_is_omap16xx())
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return;
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base = OMAP1_MMC2_BASE;
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irq = INT_1610_MMC2;
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rx_req = 55;
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tx_req = 54;
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break;
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default:
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continue;
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}
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size = OMAP1_MMC_SIZE;
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omap_mmc_add("mmci-omap", i, base, size, irq,
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rx_req, tx_req, mmc_data[i]);
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}
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}
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#endif
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/*-------------------------------------------------------------------------*/
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/* OMAP7xx SPI support */
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#if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
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struct platform_device omap_spi1 = {
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.name = "omap1_spi100k",
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.id = 1,
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};
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struct platform_device omap_spi2 = {
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.name = "omap1_spi100k",
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.id = 2,
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};
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static void omap_init_spi100k(void)
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{
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omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
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if (omap_spi1.dev.platform_data)
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platform_device_register(&omap_spi1);
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omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
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if (omap_spi2.dev.platform_data)
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platform_device_register(&omap_spi2);
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}
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#else
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static inline void omap_init_spi100k(void)
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{
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}
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#endif
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#define OMAP1_CAMERA_BASE 0xfffb6800
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#define OMAP1_CAMERA_IOSIZE 0x1c
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static struct resource omap1_camera_resources[] = {
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[0] = {
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.start = OMAP1_CAMERA_BASE,
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.end = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = INT_CAMERA,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
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static struct platform_device omap1_camera_device = {
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.name = "omap1-camera",
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.id = 0, /* This is used to put cameras on this interface */
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.dev = {
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.dma_mask = &omap1_camera_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.num_resources = ARRAY_SIZE(omap1_camera_resources),
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.resource = omap1_camera_resources,
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};
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void __init omap1_camera_init(void *info)
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{
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struct platform_device *dev = &omap1_camera_device;
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int ret;
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dev->dev.platform_data = info;
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ret = platform_device_register(dev);
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if (ret)
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dev_err(&dev->dev, "unable to register device: %d\n", ret);
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}
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/*-------------------------------------------------------------------------*/
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static inline void omap_init_sti(void) {}
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/* Numbering for the SPI-capable controllers when used for SPI:
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* spi = 1
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* uwire = 2
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* mmc1..2 = 3..4
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* mcbsp1..3 = 5..7
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*/
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#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
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#define OMAP_UWIRE_BASE 0xfffb3000
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static struct resource uwire_resources[] = {
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{
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.start = OMAP_UWIRE_BASE,
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.end = OMAP_UWIRE_BASE + 0x20,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device omap_uwire_device = {
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.name = "omap_uwire",
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.id = -1,
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.num_resources = ARRAY_SIZE(uwire_resources),
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.resource = uwire_resources,
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};
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static void omap_init_uwire(void)
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{
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/* FIXME define and use a boot tag; not all boards will be hooking
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* up devices to the microwire controller, and multi-board configs
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* mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
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*/
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/* board-specific code must configure chipselects (only a few
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* are normally used) and SCLK/SDI/SDO (each has two choices).
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*/
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(void) platform_device_register(&omap_uwire_device);
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}
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#else
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static inline void omap_init_uwire(void) {}
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#endif
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#define OMAP1_RNG_BASE 0xfffe5000
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static struct resource omap1_rng_resources[] = {
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{
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.start = OMAP1_RNG_BASE,
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.end = OMAP1_RNG_BASE + 0x4f,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device omap1_rng_device = {
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.name = "omap_rng",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap1_rng_resources),
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.resource = omap1_rng_resources,
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};
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static void omap1_init_rng(void)
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{
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if (!cpu_is_omap16xx())
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return;
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(void) platform_device_register(&omap1_rng_device);
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}
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/*-------------------------------------------------------------------------*/
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/*
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* This gets called after board-specific INIT_MACHINE, and initializes most
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* on-chip peripherals accessible on this board (except for few like USB):
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*
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* (a) Does any "standard config" pin muxing needed. Board-specific
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* code will have muxed GPIO pins and done "nonstandard" setup;
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* that code could live in the boot loader.
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* (b) Populating board-specific platform_data with the data drivers
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* rely on to handle wiring variations.
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* (c) Creating platform devices as meaningful on this board and
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* with this kernel configuration.
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*
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* Claiming GPIOs, and setting their direction and initial values, is the
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* responsibility of the device drivers. So is responding to probe().
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*
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* Board-specific knowledge like creating devices or pin setup is to be
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* kept out of drivers as much as possible. In particular, pin setup
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* may be handled by the boot loader, and drivers should expect it will
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* normally have been done by the time they're probed.
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*/
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static int __init omap1_init_devices(void)
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{
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if (!cpu_class_is_omap1())
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return -ENODEV;
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omap_sram_init();
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omap1_clk_late_init();
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/* please keep these calls, and their implementations above,
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* in alphabetical order so they're easier to sort through.
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*/
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omap_init_audio();
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omap_init_mbox();
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omap_init_rtc();
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omap_init_spi100k();
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omap_init_sti();
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omap_init_uwire();
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omap1_init_rng();
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return 0;
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}
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arch_initcall(omap1_init_devices);
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#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
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static struct resource wdt_resources[] = {
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{
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.start = 0xfffeb000,
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.end = 0xfffeb07F,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device omap_wdt_device = {
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.name = "omap_wdt",
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.id = -1,
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.num_resources = ARRAY_SIZE(wdt_resources),
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.resource = wdt_resources,
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};
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static int __init omap_init_wdt(void)
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{
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struct omap_wd_timer_platform_data pdata;
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int ret;
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if (!cpu_is_omap16xx())
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return -ENODEV;
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pdata.read_reset_sources = omap1_get_reset_sources;
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ret = platform_device_register(&omap_wdt_device);
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if (!ret) {
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ret = platform_device_add_data(&omap_wdt_device, &pdata,
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sizeof(pdata));
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if (ret)
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platform_device_del(&omap_wdt_device);
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}
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return ret;
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}
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subsys_initcall(omap_init_wdt);
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#endif
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