163 lines
3.8 KiB
C
163 lines
3.8 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <bcm63xx_dev_enet.h>
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#include <bcm63xx_io.h>
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#include <bcm63xx_regs.h>
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static struct resource shared_res[] = {
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{
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.start = -1, /* filled at runtime */
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.end = -1, /* filled at runtime */
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device bcm63xx_enet_shared_device = {
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.name = "bcm63xx_enet_shared",
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.id = 0,
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.num_resources = ARRAY_SIZE(shared_res),
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.resource = shared_res,
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};
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static int shared_device_registered;
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static struct resource enet0_res[] = {
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{
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.start = -1, /* filled at runtime */
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.end = -1, /* filled at runtime */
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.flags = IORESOURCE_MEM,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct bcm63xx_enet_platform_data enet0_pd;
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static struct platform_device bcm63xx_enet0_device = {
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.name = "bcm63xx_enet",
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.id = 0,
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.num_resources = ARRAY_SIZE(enet0_res),
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.resource = enet0_res,
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.dev = {
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.platform_data = &enet0_pd,
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},
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};
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static struct resource enet1_res[] = {
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{
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.start = -1, /* filled at runtime */
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.end = -1, /* filled at runtime */
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.flags = IORESOURCE_MEM,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = -1, /* filled at runtime */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct bcm63xx_enet_platform_data enet1_pd;
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static struct platform_device bcm63xx_enet1_device = {
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.name = "bcm63xx_enet",
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.id = 1,
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.num_resources = ARRAY_SIZE(enet1_res),
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.resource = enet1_res,
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.dev = {
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.platform_data = &enet1_pd,
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},
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};
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int __init bcm63xx_enet_register(int unit,
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const struct bcm63xx_enet_platform_data *pd)
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{
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struct platform_device *pdev;
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struct bcm63xx_enet_platform_data *dpd;
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int ret;
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if (unit > 1)
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return -ENODEV;
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if (unit == 1 && BCMCPU_IS_6338())
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return -ENODEV;
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if (!shared_device_registered) {
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shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
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shared_res[0].end = shared_res[0].start;
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if (BCMCPU_IS_6338())
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shared_res[0].end += (RSET_ENETDMA_SIZE / 2) - 1;
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else
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shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
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ret = platform_device_register(&bcm63xx_enet_shared_device);
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if (ret)
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return ret;
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shared_device_registered = 1;
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}
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if (unit == 0) {
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enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
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enet0_res[0].end = enet0_res[0].start;
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enet0_res[0].end += RSET_ENET_SIZE - 1;
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enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
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enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
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enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
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pdev = &bcm63xx_enet0_device;
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} else {
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enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
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enet1_res[0].end = enet1_res[0].start;
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enet1_res[0].end += RSET_ENET_SIZE - 1;
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enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
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enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
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enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
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pdev = &bcm63xx_enet1_device;
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}
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/* copy given platform data */
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dpd = pdev->dev.platform_data;
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memcpy(dpd, pd, sizeof(*pd));
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/* adjust them in case internal phy is used */
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if (dpd->use_internal_phy) {
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/* internal phy only exists for enet0 */
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if (unit == 1)
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return -ENODEV;
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dpd->phy_id = 1;
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dpd->has_phy_interrupt = 1;
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dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
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}
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ret = platform_device_register(pdev);
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if (ret)
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return ret;
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return 0;
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}
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