ATA: sata_mv: Add device tree support
Add support for instantiating this driver from device tree, and add the necassary DT information to the kirkwood.dtsi file. This is based on previous work by Michael Walle and Jason Cooper. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Josh Coombs <josh.coombs@gmail.com>
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16
Documentation/devicetree/bindings/ata/marvell.txt
Normal file
16
Documentation/devicetree/bindings/ata/marvell.txt
Normal file
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@ -0,0 +1,16 @@
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* Marvell Orion SATA
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Required Properties:
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- compatibility : "marvell,orion-sata"
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- reg : Address range of controller
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- interrupts : Interrupt controller is using
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- nr-ports : Number of SATA ports in use.
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Example:
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sata@80000 {
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compatible = "marvell,orion-sata";
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reg = <0x80000 0x5000>;
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interrupts = <21>;
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nr-ports = <2>;
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}
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@ -76,6 +76,13 @@
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status = "okay";
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status = "okay";
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};
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};
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sata@80000 {
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compatible = "marvell,orion-sata";
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reg = <0x80000 0x5000>;
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interrupts = <21>;
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status = "disabled";
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};
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nand@3000000 {
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nand@3000000 {
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#address-cells = <1>;
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#address-cells = <1>;
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#size-cells = <1>;
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#size-cells = <1>;
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@ -31,6 +31,7 @@ struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = {
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OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
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OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
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NULL),
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NULL),
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OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
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OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
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OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
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{},
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{},
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};
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};
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@ -65,6 +65,8 @@
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#include <linux/mbus.h>
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#include <linux/mbus.h>
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#include <linux/bitops.h>
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#include <linux/bitops.h>
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#include <linux/gfp.h>
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#include <linux/gfp.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_device.h>
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@ -4026,7 +4028,7 @@ static int mv_platform_probe(struct platform_device *pdev)
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struct ata_host *host;
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struct ata_host *host;
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struct mv_host_priv *hpriv;
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struct mv_host_priv *hpriv;
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struct resource *res;
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struct resource *res;
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int n_ports = 0;
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int n_ports = 0, irq = 0;
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int rc;
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int rc;
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#if defined(CONFIG_HAVE_CLK)
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#if defined(CONFIG_HAVE_CLK)
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int port;
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int port;
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@ -4050,8 +4052,14 @@ static int mv_platform_probe(struct platform_device *pdev)
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return -EINVAL;
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return -EINVAL;
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/* allocate host */
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/* allocate host */
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mv_platform_data = pdev->dev.platform_data;
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if (pdev->dev.of_node) {
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n_ports = mv_platform_data->n_ports;
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of_property_read_u32(pdev->dev.of_node, "nr-ports", &n_ports);
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irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
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} else {
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mv_platform_data = pdev->dev.platform_data;
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n_ports = mv_platform_data->n_ports;
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irq = platform_get_irq(pdev, 0);
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}
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host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
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host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
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hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
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hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
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@ -4109,8 +4117,7 @@ static int mv_platform_probe(struct platform_device *pdev)
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dev_info(&pdev->dev, "slots %u ports %d\n",
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dev_info(&pdev->dev, "slots %u ports %d\n",
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(unsigned)MV_MAX_Q_DEPTH, host->n_ports);
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(unsigned)MV_MAX_Q_DEPTH, host->n_ports);
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rc = ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt,
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rc = ata_host_activate(host, irq, mv_interrupt, IRQF_SHARED, &mv6_sht);
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IRQF_SHARED, &mv6_sht);
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if (!rc)
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if (!rc)
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return 0;
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return 0;
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@ -4205,15 +4212,24 @@ static int mv_platform_resume(struct platform_device *pdev)
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#define mv_platform_resume NULL
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#define mv_platform_resume NULL
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#endif
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#endif
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#ifdef CONFIG_OF
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static struct of_device_id mv_sata_dt_ids[] __devinitdata = {
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{ .compatible = "marvell,orion-sata", },
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{},
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};
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MODULE_DEVICE_TABLE(of, mv_sata_dt_ids);
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#endif
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static struct platform_driver mv_platform_driver = {
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static struct platform_driver mv_platform_driver = {
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.probe = mv_platform_probe,
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.probe = mv_platform_probe,
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.remove = __devexit_p(mv_platform_remove),
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.remove = __devexit_p(mv_platform_remove),
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.suspend = mv_platform_suspend,
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.suspend = mv_platform_suspend,
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.resume = mv_platform_resume,
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.resume = mv_platform_resume,
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.driver = {
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.driver = {
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.name = DRV_NAME,
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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},
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.of_match_table = of_match_ptr(mv_sata_dt_ids),
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},
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};
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};
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