devices.c

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/*
 * linux/arch/arm/mach-omap2/devices.c
 *
 * OMAP2 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/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/omap4-keypad.h>
#include <linux/platform_data/omap_ocp2scp.h>

#include <asm/mach-types.h>
#include <asm/mach/map.h>

#include "iomap.h"
#include <plat/dma.h>
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
#include "omap4-keypad.h"

#include "soc.h"
#include "common.h"
#include "mux.h"
#include "control.h"
#include "devices.h"

#define L3_MODULES_MAX_LEN 12
#define L3_MODULES 3

static int __init omap3_l3_init(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;
    char oh_name[L3_MODULES_MAX_LEN];

    /*
     * To avoid code running on other OMAPs in
     * multi-omap builds
     */
    if (!(cpu_is_omap34xx()))
        return -ENODEV;

    snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");

    oh = omap_hwmod_lookup(oh_name);

    if (!oh)
        pr_err("could not look up %s\n", oh_name);

    pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0,
                               NULL, 0, 0);

    WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);

    return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
}
postcore_initcall(omap3_l3_init);

static int __init omap4_l3_init(void)
{
    int i;
    struct omap_hwmod *oh[3];
    struct platform_device *pdev;
    char oh_name[L3_MODULES_MAX_LEN];

    /* If dtb is there, the devices will be created dynamically */
    if (of_have_populated_dt())
        return -ENODEV;

    /*
     * To avoid code running on other OMAPs in
     * multi-omap builds
     */
    if (!cpu_is_omap44xx() && !soc_is_omap54xx())
        return -ENODEV;

    for (i = 0; i < L3_MODULES; i++) {
        snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1);

        oh[i] = omap_hwmod_lookup(oh_name);
        if (!(oh[i]))
            pr_err("could not look up %s\n", oh_name);
    }

    pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL,
                             0, NULL, 0, 0);

    WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);

    return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
}
postcore_initcall(omap4_l3_init);

#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)

static struct resource omap2cam_resources[] = {
    {
        .start      = OMAP24XX_CAMERA_BASE,
        .end        = OMAP24XX_CAMERA_BASE + 0xfff,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = 24 + OMAP_INTC_START,
        .flags      = IORESOURCE_IRQ,
    }
};

static struct platform_device omap2cam_device = {
    .name       = "omap24xxcam",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(omap2cam_resources),
    .resource   = omap2cam_resources,
};
#endif

#if defined(CONFIG_IOMMU_API)

#include <plat/iommu.h>

static struct resource omap3isp_resources[] = {
    {
        .start      = OMAP3430_ISP_BASE,
        .end        = OMAP3430_ISP_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_CCP2_BASE,
        .end        = OMAP3430_ISP_CCP2_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_CCDC_BASE,
        .end        = OMAP3430_ISP_CCDC_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_HIST_BASE,
        .end        = OMAP3430_ISP_HIST_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_H3A_BASE,
        .end        = OMAP3430_ISP_H3A_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_PREV_BASE,
        .end        = OMAP3430_ISP_PREV_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_RESZ_BASE,
        .end        = OMAP3430_ISP_RESZ_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_SBL_BASE,
        .end        = OMAP3430_ISP_SBL_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_CSI2A_REGS1_BASE,
        .end        = OMAP3430_ISP_CSI2A_REGS1_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3430_ISP_CSIPHY2_BASE,
        .end        = OMAP3430_ISP_CSIPHY2_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3630_ISP_CSI2A_REGS2_BASE,
        .end        = OMAP3630_ISP_CSI2A_REGS2_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3630_ISP_CSI2C_REGS1_BASE,
        .end        = OMAP3630_ISP_CSI2C_REGS1_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3630_ISP_CSIPHY1_BASE,
        .end        = OMAP3630_ISP_CSIPHY1_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = OMAP3630_ISP_CSI2C_REGS2_BASE,
        .end        = OMAP3630_ISP_CSI2C_REGS2_END,
        .flags      = IORESOURCE_MEM,
    },
    {
        .start      = 24 + OMAP_INTC_START,
        .flags      = IORESOURCE_IRQ,
    }
};

static struct platform_device omap3isp_device = {
    .name       = "omap3isp",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(omap3isp_resources),
    .resource   = omap3isp_resources,
};

static struct omap_iommu_arch_data omap3_isp_iommu = {
    .name = "isp",
};

int omap3_init_camera(struct isp_platform_data *pdata)
{
    omap3isp_device.dev.platform_data = pdata;
    omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;

    return platform_device_register(&omap3isp_device);
}

#else /* !CONFIG_IOMMU_API */

int omap3_init_camera(struct isp_platform_data *pdata)
{
    return 0;
}

#endif

static inline void omap_init_camera(void)
{
#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
    if (cpu_is_omap24xx())
        platform_device_register(&omap2cam_device);
#endif
}

int __init omap4_keyboard_init(struct omap4_keypad_platform_data
            *sdp4430_keypad_data, struct omap_board_data *bdata)
{
    struct platform_device *pdev;
    struct omap_hwmod *oh;
    struct omap4_keypad_platform_data *keypad_data;
    unsigned int id = -1;
    char *oh_name = "kbd";
    char *name = "omap4-keypad";

    oh = omap_hwmod_lookup(oh_name);
    if (!oh) {
        pr_err("Could not look up %s\n", oh_name);
        return -ENODEV;
    }

    keypad_data = sdp4430_keypad_data;

    pdev = omap_device_build(name, id, oh, keypad_data,
            sizeof(struct omap4_keypad_platform_data), NULL, 0, 0);

    if (IS_ERR(pdev)) {
        WARN(1, "Can't build omap_device for %s:%s.\n",
                        name, oh->name);
        return PTR_ERR(pdev);
    }
    oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);

    return 0;
}

#if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
static inline void __init omap_init_mbox(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;

    oh = omap_hwmod_lookup("mailbox");
    if (!oh) {
        pr_err("%s: unable to find hwmod\n", __func__);
        return;
    }

    pdev = omap_device_build("omap-mailbox", -1, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
                        __func__, PTR_ERR(pdev));
}
#else
static inline void omap_init_mbox(void) { }
#endif /* CONFIG_OMAP_MBOX_FWK */

static inline void omap_init_sti(void) {}

#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_SND_OMAP_SOC_MCPDM) || \
        defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)

static void __init omap_init_mcpdm(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;

    oh = omap_hwmod_lookup("mcpdm");
    if (!oh) {
        printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
        return;
    }

    pdev = omap_device_build("omap-mcpdm", -1, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev), "Can't build omap_device for omap-mcpdm.\n");
}
#else
static inline void omap_init_mcpdm(void) {}
#endif

#if defined(CONFIG_SND_OMAP_SOC_DMIC) || \
        defined(CONFIG_SND_OMAP_SOC_DMIC_MODULE)

static void __init omap_init_dmic(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;

    oh = omap_hwmod_lookup("dmic");
    if (!oh) {
        pr_err("Could not look up dmic hw_mod\n");
        return;
    }

    pdev = omap_device_build("omap-dmic", -1, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev), "Can't build omap_device for omap-dmic.\n");
}
#else
static inline void omap_init_dmic(void) {}
#endif

#if defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI) || \
        defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI_MODULE)

static struct platform_device omap_hdmi_audio = {
    .name   = "omap-hdmi-audio",
    .id = -1,
};

static void __init omap_init_hdmi_audio(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;

    oh = omap_hwmod_lookup("dss_hdmi");
    if (!oh) {
        printk(KERN_ERR "Could not look up dss_hdmi hw_mod\n");
        return;
    }

    pdev = omap_device_build("omap-hdmi-audio-dai",
        -1, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev),
         "Can't build omap_device for omap-hdmi-audio-dai.\n");

    platform_device_register(&omap_hdmi_audio);
}
#else
static inline void omap_init_hdmi_audio(void) {}
#endif

#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)

#include <linux/platform_data/spi-omap2-mcspi.h>

static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
{
    struct platform_device *pdev;
    char *name = "omap2_mcspi";
    struct omap2_mcspi_platform_config *pdata;
    static int spi_num;
    struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;

    pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
    if (!pdata) {
        pr_err("Memory allocation for McSPI device failed\n");
        return -ENOMEM;
    }

    pdata->num_cs = mcspi_attrib->num_chipselect;
    switch (oh->class->rev) {
    case OMAP2_MCSPI_REV:
    case OMAP3_MCSPI_REV:
            pdata->regs_offset = 0;
            break;
    case OMAP4_MCSPI_REV:
            pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
            break;
    default:
            pr_err("Invalid McSPI Revision value\n");
            kfree(pdata);
            return -EINVAL;
    }

    spi_num++;
    pdev = omap_device_build(name, spi_num, oh, pdata,
                sizeof(*pdata), NULL, 0, 0);
    WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
                name, oh->name);
    kfree(pdata);
    return 0;
}

static void omap_init_mcspi(void)
{
    omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
}

#else
static inline void omap_init_mcspi(void) {}
#endif

static void omap_init_rng(void)
{
    struct omap_hwmod *oh;
    struct platform_device *pdev;

    oh = omap_hwmod_lookup("rng");
    if (!oh)
        return;

    pdev = omap_device_build("omap_rng", -1, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
}

#if defined(CONFIG_CRYPTO_DEV_OMAP_SHAM) || defined(CONFIG_CRYPTO_DEV_OMAP_SHAM_MODULE)

#ifdef CONFIG_ARCH_OMAP2
static struct resource omap2_sham_resources[] = {
    {
        .start  = OMAP24XX_SEC_SHA1MD5_BASE,
        .end    = OMAP24XX_SEC_SHA1MD5_BASE + 0x64,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = 51 + OMAP_INTC_START,
        .flags  = IORESOURCE_IRQ,
    }
};
static int omap2_sham_resources_sz = ARRAY_SIZE(omap2_sham_resources);
#else
#define omap2_sham_resources        NULL
#define omap2_sham_resources_sz     0
#endif

#ifdef CONFIG_ARCH_OMAP3
static struct resource omap3_sham_resources[] = {
    {
        .start  = OMAP34XX_SEC_SHA1MD5_BASE,
        .end    = OMAP34XX_SEC_SHA1MD5_BASE + 0x64,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = 49 + OMAP_INTC_START,
        .flags  = IORESOURCE_IRQ,
    },
    {
        .start  = OMAP34XX_DMA_SHA1MD5_RX,
        .flags  = IORESOURCE_DMA,
    }
};
static int omap3_sham_resources_sz = ARRAY_SIZE(omap3_sham_resources);
#else
#define omap3_sham_resources        NULL
#define omap3_sham_resources_sz     0
#endif

static struct platform_device sham_device = {
    .name       = "omap-sham",
    .id     = -1,
};

static void omap_init_sham(void)
{
    if (cpu_is_omap24xx()) {
        sham_device.resource = omap2_sham_resources;
        sham_device.num_resources = omap2_sham_resources_sz;
    } else if (cpu_is_omap34xx()) {
        sham_device.resource = omap3_sham_resources;
        sham_device.num_resources = omap3_sham_resources_sz;
    } else {
        pr_err("%s: platform not supported\n", __func__);
        return;
    }
    platform_device_register(&sham_device);
}
#else
static inline void omap_init_sham(void) { }
#endif

#if defined(CONFIG_CRYPTO_DEV_OMAP_AES) || defined(CONFIG_CRYPTO_DEV_OMAP_AES_MODULE)

#ifdef CONFIG_ARCH_OMAP2
static struct resource omap2_aes_resources[] = {
    {
        .start  = OMAP24XX_SEC_AES_BASE,
        .end    = OMAP24XX_SEC_AES_BASE + 0x4C,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = OMAP24XX_DMA_AES_TX,
        .flags  = IORESOURCE_DMA,
    },
    {
        .start  = OMAP24XX_DMA_AES_RX,
        .flags  = IORESOURCE_DMA,
    }
};
static int omap2_aes_resources_sz = ARRAY_SIZE(omap2_aes_resources);
#else
#define omap2_aes_resources     NULL
#define omap2_aes_resources_sz      0
#endif

#ifdef CONFIG_ARCH_OMAP3
static struct resource omap3_aes_resources[] = {
    {
        .start  = OMAP34XX_SEC_AES_BASE,
        .end    = OMAP34XX_SEC_AES_BASE + 0x4C,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = OMAP34XX_DMA_AES2_TX,
        .flags  = IORESOURCE_DMA,
    },
    {
        .start  = OMAP34XX_DMA_AES2_RX,
        .flags  = IORESOURCE_DMA,
    }
};
static int omap3_aes_resources_sz = ARRAY_SIZE(omap3_aes_resources);
#else
#define omap3_aes_resources     NULL
#define omap3_aes_resources_sz      0
#endif

static struct platform_device aes_device = {
    .name       = "omap-aes",
    .id     = -1,
};

static void omap_init_aes(void)
{
    if (cpu_is_omap24xx()) {
        aes_device.resource = omap2_aes_resources;
        aes_device.num_resources = omap2_aes_resources_sz;
    } else if (cpu_is_omap34xx()) {
        aes_device.resource = omap3_aes_resources;
        aes_device.num_resources = omap3_aes_resources_sz;
    } else {
        pr_err("%s: platform not supported\n", __func__);
        return;
    }
    platform_device_register(&aes_device);
}

#else
static inline void omap_init_aes(void) { }
#endif

/*-------------------------------------------------------------------------*/

#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
    defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
};
#else
static struct resource omap_vout_resource[2] = {
};
#endif

static struct platform_device omap_vout_device = {
    .name       = "omap_vout",
    .num_resources  = ARRAY_SIZE(omap_vout_resource),
    .resource   = &omap_vout_resource[0],
    .id     = -1,
};
static void omap_init_vout(void)
{
    if (platform_device_register(&omap_vout_device) < 0)
        printk(KERN_ERR "Unable to register OMAP-VOUT device\n");
}
#else
static inline void omap_init_vout(void) {}
#endif

#if defined(CONFIG_OMAP_OCP2SCP) || defined(CONFIG_OMAP_OCP2SCP_MODULE)
static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev)
{
    int cnt = 0;

    while (ocp2scp_dev->drv_name != NULL) {
        cnt++;
        ocp2scp_dev++;
    }

    return cnt;
}

static void omap_init_ocp2scp(void)
{
    struct omap_hwmod   *oh;
    struct platform_device  *pdev;
    int         bus_id = -1, dev_cnt = 0, i;
    struct omap_ocp2scp_dev *ocp2scp_dev;
    const char      *oh_name, *name;
    struct omap_ocp2scp_platform_data *pdata;

    if (!cpu_is_omap44xx())
        return;

    oh_name = "ocp2scp_usb_phy";
    name    = "omap-ocp2scp";

    oh = omap_hwmod_lookup(oh_name);
    if (!oh) {
        pr_err("%s: could not find omap_hwmod for %s\n", __func__,
                                oh_name);
        return;
    }

    pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
    if (!pdata) {
        pr_err("%s: No memory for ocp2scp pdata\n", __func__);
        return;
    }

    ocp2scp_dev = oh->dev_attr;
    dev_cnt = count_ocp2scp_devices(ocp2scp_dev);

    if (!dev_cnt) {
        pr_err("%s: No devices connected to ocp2scp\n", __func__);
        kfree(pdata);
        return;
    }

    pdata->devices = kzalloc(sizeof(struct omap_ocp2scp_dev *)
                    * dev_cnt, GFP_KERNEL);
    if (!pdata->devices) {
        pr_err("%s: No memory for ocp2scp pdata devices\n", __func__);
        kfree(pdata);
        return;
    }

    for (i = 0; i < dev_cnt; i++, ocp2scp_dev++)
        pdata->devices[i] = ocp2scp_dev;

    pdata->dev_cnt  = dev_cnt;

    pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(*pdata), NULL,
                                0, false);
    if (IS_ERR(pdev)) {
        pr_err("Could not build omap_device for %s %s\n",
                        name, oh_name);
        kfree(pdata->devices);
        kfree(pdata);
        return;
    }
}
#else
static inline void omap_init_ocp2scp(void) { }
#endif

/*-------------------------------------------------------------------------*/

static int __init omap2_init_devices(void)
{
    /* Enable dummy states for those platforms without pinctrl support */
    if (!of_have_populated_dt())
        pinctrl_provide_dummies();

    /*
     * please keep these calls, and their implementations above,
     * in alphabetical order so they're easier to sort through.
     */
    omap_init_audio();
    omap_init_camera();
    omap_init_hdmi_audio();
    omap_init_mbox();
    /* If dtb is there, the devices will be created dynamically */
    if (!of_have_populated_dt()) {
        omap_init_dmic();
        omap_init_mcpdm();
        omap_init_mcspi();
    }
    omap_init_sti();
    omap_init_rng();
    omap_init_sham();
    omap_init_aes();
    omap_init_vout();
    omap_init_ocp2scp();

    return 0;
}
arch_initcall(omap2_init_devices);

#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
static int __init omap_init_wdt(void)
{
    int id = -1;
    struct platform_device *pdev;
    struct omap_hwmod *oh;
    char *oh_name = "wd_timer2";
    char *dev_name = "omap_wdt";

    if (!cpu_class_is_omap2() || of_have_populated_dt())
        return 0;

    oh = omap_hwmod_lookup(oh_name);
    if (!oh) {
        pr_err("Could not look up wd_timer%d hwmod\n", id);
        return -EINVAL;
    }

    pdev = omap_device_build(dev_name, id, oh, NULL, 0, NULL, 0, 0);
    WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
                dev_name, oh->name);
    return 0;
}
subsys_initcall(omap_init_wdt);
#endif