83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
|
|
* CE4100's SPI device is more or less the same one as found on PXA
|
|
*
|
|
*/
|
|
#include <linux/pci.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/spi/pxa2xx_spi.h>
|
|
|
|
static int ce4100_spi_probe(struct pci_dev *dev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct platform_device_info pi;
|
|
int ret;
|
|
struct platform_device *pdev;
|
|
struct pxa2xx_spi_master spi_pdata;
|
|
struct ssp_device *ssp;
|
|
|
|
ret = pcim_enable_device(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pcim_iomap_regions(dev, 1 << 0, "PXA2xx SPI");
|
|
if (!ret)
|
|
return ret;
|
|
|
|
memset(&spi_pdata, 0, sizeof(spi_pdata));
|
|
spi_pdata.num_chipselect = dev->devfn;
|
|
|
|
ssp = &spi_pdata.ssp;
|
|
ssp->phys_base = pci_resource_start(dev, 0);
|
|
ssp->mmio_base = pcim_iomap_table(dev)[0];
|
|
if (!ssp->mmio_base) {
|
|
dev_err(&dev->dev, "failed to ioremap() registers\n");
|
|
return -EIO;
|
|
}
|
|
ssp->irq = dev->irq;
|
|
ssp->port_id = dev->devfn;
|
|
ssp->type = PXA25x_SSP;
|
|
|
|
memset(&pi, 0, sizeof(pi));
|
|
pi.parent = &dev->dev;
|
|
pi.name = "pxa2xx-spi";
|
|
pi.id = ssp->port_id;
|
|
pi.data = &spi_pdata;
|
|
pi.size_data = sizeof(spi_pdata);
|
|
|
|
pdev = platform_device_register_full(&pi);
|
|
if (!pdev)
|
|
return -ENOMEM;
|
|
|
|
pci_set_drvdata(dev, pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ce4100_spi_remove(struct pci_dev *dev)
|
|
{
|
|
struct platform_device *pdev = pci_get_drvdata(dev);
|
|
|
|
platform_device_unregister(pdev);
|
|
}
|
|
|
|
static DEFINE_PCI_DEVICE_TABLE(ce4100_spi_devices) = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e6a) },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, ce4100_spi_devices);
|
|
|
|
static struct pci_driver ce4100_spi_driver = {
|
|
.name = "ce4100_spi",
|
|
.id_table = ce4100_spi_devices,
|
|
.probe = ce4100_spi_probe,
|
|
.remove = ce4100_spi_remove,
|
|
};
|
|
|
|
module_pci_driver(ce4100_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("CE4100 PCI-SPI glue code for PXA's driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
|