linux-imx

/*

 * Broadcom specific AMBA

 * PCIe Gen 2 Core

 *

 * Copyright 2014, Broadcom Corporation

 * Copyright 2014, Rafał Miłecki <zajec5@gmail.com>

 *

 * Licensed under the GNU/GPL. See COPYING for details.

 */

​

#include "bcma_private.h"

#include <linux/bcma/bcma.h>

#include <linux/pci.h>

​

/**************************************************

 * R/W ops.

 **************************************************/

​

#if 0

static u32 bcma_core_pcie2_cfg_read(struct bcma_drv_pcie2 *pcie2, u32 addr)

{

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDADDR, addr);

    pcie2_read32(pcie2, BCMA_CORE_PCIE2_CONFIGINDADDR);

    return pcie2_read32(pcie2, BCMA_CORE_PCIE2_CONFIGINDDATA);

}

#endif

​

static void bcma_core_pcie2_cfg_write(struct bcma_drv_pcie2 *pcie2, u32 addr,

                      u32 val)

{

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDADDR, addr);

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDDATA, val);

}

​

/**************************************************

 * Init.

 **************************************************/

​

static u32 bcma_core_pcie2_war_delay_perst_enab(struct bcma_drv_pcie2 *pcie2,

                        bool enable)

{

    u32 val;

​

    /* restore back to default */

    val = pcie2_read32(pcie2, BCMA_CORE_PCIE2_CLK_CONTROL);

    val |= PCIE2_CLKC_DLYPERST;

    val &= ~PCIE2_CLKC_DISSPROMLD;

    if (enable) {

        val &= ~PCIE2_CLKC_DLYPERST;

        val |= PCIE2_CLKC_DISSPROMLD;

    }

    pcie2_write32(pcie2, (BCMA_CORE_PCIE2_CLK_CONTROL), val);

    /* flush */

    return pcie2_read32(pcie2, BCMA_CORE_PCIE2_CLK_CONTROL);

}

​

static void bcma_core_pcie2_set_ltr_vals(struct bcma_drv_pcie2 *pcie2)

{

    /* LTR0 */

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDADDR, 0x844);

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDDATA, 0x883c883c);

    /* LTR1 */

    pcie2_write32(pcie2, BCMA_CORE_PCIE2_CONFIGINDADDR, 0x848);