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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-11-25 GuEe-GUI first version
*/
#include "macb.h"
#define DBG_TAG "eth.macb.pci"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
static rt_ubase_t gem_clk_recalc_rate(struct rt_clk_cell *cell, rt_ubase_t parent_rate)
{
(void)cell;
(void)parent_rate;
return 50000000;
}
static struct rt_clk_ops gem_clk_ops =
{
.recalc_rate = gem_clk_recalc_rate,
};
static struct rt_clk_cell *gem_cells[] =
{
&(struct rt_clk_cell)
{
.cell.name = "macb_pci_pclk",
.cell.ops = &gem_clk_ops,
},
&(struct rt_clk_cell)
{
.cell.name = "macb_pci_hclk",
.cell.ops = &gem_clk_ops,
},
};
static rt_err_t macb_pci_clk_init(void)
{
rt_err_t err;
static struct rt_clk_node *clk_np = RT_NULL;
if (clk_np)
{
return RT_EOK;
}
if (!(clk_np = rt_calloc(1, sizeof(*clk_np))))
{
return -RT_ENOMEM;
}
clk_np->cells = gem_cells;
clk_np->cells_nr = RT_ARRAY_SIZE(gem_cells);
if ((err = rt_clk_register(clk_np)))
{
rt_free(clk_np);
}
return err;
}
static rt_err_t macb_pci_probe(struct rt_pci_device *pdev)
{
rt_err_t err;
struct macb_eth *eth;
if ((err = macb_pci_clk_init()))
{
return err;
}
if (!(eth = rt_calloc(1, sizeof(*eth))))
{
return -RT_ENOMEM;
}
rt_pci_set_master(pdev);
eth->dev = &pdev->parent;
eth->regs = rt_pci_iomap(pdev, 0);
if (!eth->regs)
{
err = -RT_EIO;
goto _free_eth;
}
eth->irq = pdev->irq;
rt_pci_irq_unmask(pdev);
eth->pclk = rt_clk_get_by_name(eth->dev, "macb_pci_pclk");
if (rt_is_err_or_null(eth->pclk))
{
err = eth->pclk ? rt_ptr_err(eth->pclk) : -RT_EIO;
goto _unmap;
}
eth->hclk = rt_clk_get_by_name(eth->dev, "macb_pci_hclk");
if (rt_is_err_or_null(eth->hclk))
{
err = eth->hclk ? rt_ptr_err(eth->hclk) : -RT_EIO;
goto _put_pclk;
}
ethernet_random_addr(ð->parent, eth->mac);
if ((err = macb_eth_hw_init(eth)))
{
goto _put_clks;
}
pdev->parent.user_data = eth;
if ((err = macb_eth_common_probe(eth)))
{
macb_eth_common_remove(eth);
pdev->parent.user_data = RT_NULL;
goto _put_clks;
}
return RT_EOK;
_put_clks:
rt_clk_put(eth->hclk);
_put_pclk:
rt_clk_put(eth->pclk);
_unmap:
rt_iounmap(eth->regs);
rt_pci_irq_mask(pdev);
_free_eth:
rt_free(eth);
return err;
}
static rt_err_t macb_pci_remove(struct rt_pci_device *pdev)
{
struct macb_eth *eth = pdev->parent.user_data;
macb_eth_common_remove(eth);
/* INTx is shared, don't mask all */
rt_hw_interrupt_umask(pdev->irq);
rt_pci_irq_mask(pdev);
rt_pci_clear_master(pdev);
rt_iounmap(eth->regs);
rt_clk_put(eth->hclk);
rt_clk_put(eth->pclk);
rt_free(eth);
return RT_EOK;
}
static const struct rt_pci_device_id macb_pci_ids[] =
{
{ RT_PCI_DEVICE_ID(PCI_VENDOR_ID_CDNS, 0xe007), },
{ /* sentinel */ }
};
static struct rt_pci_driver macb_pci_driver =
{
.name = "macb-pci",
.ids = macb_pci_ids,
.probe = macb_pci_probe,
.remove = macb_pci_remove,
};
RT_PCI_DRIVER_EXPORT(macb_pci_driver);
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