Initial file dump from open source releaseHEADmaster

1 files changed, 82 insertions, 0 deletions

diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
new file mode 100644
index 00000000..74bc1877
--- /dev/null
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -0,0 +1,82 @@
+/*
+ * 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 (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	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>");