path: root/recipes/linux/linux-2.6.34/ts72xx/0009-ts72xx_pata.patch

From 2500e39a54c9c37abbddd1ad552575b24420e1a8 Mon Sep 17 00:00:00 2001
From: Matthieu Crapet <mcrapet@gmail.com>
Date: Sat, 19 Jun 2010 11:25:31 +0200
Subject: [PATCH 09/18] ts72xx_pata

Support:
TS-7200 - Compact flash
TS-9600 - IDE interface PC/104 peripheral
---
 drivers/ata/Kconfig          |   20 +++++
 drivers/ata/Makefile         |    3 +
 drivers/ata/pata_ts7200_cf.c |   92 ++++++++++++++++++++++++
 drivers/ata/pata_ts72xx.c    |  161 ++++++++++++++++++++++++++++++++++++++++++
 drivers/ata/pata_ts9600.c    |   95 +++++++++++++++++++++++++
 5 files changed, 371 insertions(+), 0 deletions(-)
 create mode 100644 drivers/ata/pata_ts7200_cf.c
 create mode 100644 drivers/ata/pata_ts72xx.c
 create mode 100644 drivers/ata/pata_ts9600.c

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 01c52c4..2d26789 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -799,5 +799,25 @@ config PATA_MACIO
           different chipsets, though generally, MacIO is one of them.
 
 
+config PATA_TS72XX
+	bool "TS72XX ATA support"
+	depends on ARCH_EP93XX && MACH_TS72XX
+	help
+	  This option enables support for ATA devices on Technologic Systems SBC.
+
+config PATA_TS7200_CF
+	tristate "TS-7200 Compact Flash support"
+	depends on PATA_TS72XX
+	help
+	  This option enables support for the compact flash control on
+	  Technologic System TS-7200 SBC.
+
+config PATA_TS9600
+	tristate "TS-9600 IDE interface support"
+	depends on PATA_TS72XX && BLK_DEV_IDE_TS9600 != y
+	help
+	  This option enables support for Technologic Systems TS-9600 PC/104 IDE interface.
+
 endif # ATA_SFF
+
 endif # ATA
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index fc936d4..183ce00 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -79,6 +79,9 @@ obj-$(CONFIG_PATA_PLATFORM)	+= pata_platform.o
 obj-$(CONFIG_PATA_AT91)	+= pata_at91.o
 obj-$(CONFIG_PATA_OF_PLATFORM)	+= pata_of_platform.o
 obj-$(CONFIG_PATA_ICSIDE)	+= pata_icside.o
+obj-$(CONFIG_PATA_TS72XX)	+= pata_ts72xx.o
+obj-$(CONFIG_PATA_TS7200_CF)	+= pata_ts7200_cf.o
+obj-$(CONFIG_PATA_TS9600)	+= pata_ts9600.o
 # Should be last but two libata driver
 obj-$(CONFIG_PATA_ACPI)		+= pata_acpi.o
 # Should be last but one libata driver
diff --git a/drivers/ata/pata_ts7200_cf.c b/drivers/ata/pata_ts7200_cf.c
new file mode 100644
index 0000000..4126682
--- /dev/null
+++ b/drivers/ata/pata_ts7200_cf.c
@@ -0,0 +1,92 @@
+/*
+ *  Technologic Systems TS-7200 Compact Flash PATA device driver.
+ *
+ * (c) Copyright 2008  Matthieu Crapet <mcrapet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/libata.h>
+#include <scsi/scsi_host.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <mach/ts72xx.h>
+
+#define DRV_NAME  "pata_ts7200_cf"
+#define DRV_VERSION "0.21"
+
+
+static void pata_ts7200_cf_release(struct device *dev)
+{
+	/* nothing to do (no kfree) because we have static struct */
+}
+
+static struct resource ts7200_cf_resources[] = {
+	[0] = {
+		.start	= TS7200_CF_CMD_PHYS_BASE,
+		.end	= TS7200_CF_CMD_PHYS_BASE + 8,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= TS7200_CF_AUX_PHYS_BASE,
+		.end	= TS7200_CF_AUX_PHYS_BASE + 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= TS7200_CF_DATA_PHYS_BASE,
+		.end	= TS7200_CF_DATA_PHYS_BASE + 2,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = {
+		.start	= IRQ_EP93XX_EXT0, /* pin 103 of EP9301 */
+		.end	= IRQ_EP93XX_EXT0,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+
+static struct platform_device ts7200_cf_device = {
+	.name	= "ts72xx-ide",
+	.id	= 0,
+	.dev	= {
+		.dma_mask = &ts7200_cf_device.dev.coherent_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.release	= pata_ts7200_cf_release,
+	},
+	.num_resources	= ARRAY_SIZE(ts7200_cf_resources),
+	.resource	= ts7200_cf_resources,
+};
+
+
+static __init int pata_ts7200_cf_init(void)
+{
+	return (board_is_ts7200()) ? \
+		platform_device_register(&ts7200_cf_device) : -ENODEV;
+}
+
+static __exit void pata_ts7200_cf_exit(void)
+{
+	platform_device_unregister(&ts7200_cf_device);
+}
+
+module_init(pata_ts7200_cf_init);
+module_exit(pata_ts7200_cf_exit);
+
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>");
+MODULE_DESCRIPTION("TS-7200 CF PATA device driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/ata/pata_ts72xx.c b/drivers/ata/pata_ts72xx.c
new file mode 100644
index 0000000..d540029
--- /dev/null
+++ b/drivers/ata/pata_ts72xx.c
@@ -0,0 +1,161 @@
+/*
+ *  TS-72XX PATA driver for Technologic Systems boards.
+ *
+ *  Based on pata_platform.c by Paul Mundt &
+ *      Alessandro Zummo <a.zummo@towertech.it>
+ *  and old pata-ts72xx.c by Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * (c) Copyright 2008  Matthieu Crapet <mcrapet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#define DRV_NAME  "pata_ts72xx"
+#define DRV_VERSION "2.01"
+
+
+/*
+ * Provide our own set_mode() as we don't want to change anything that has
+ * already been configured..
+ */
+static int ts72xx_set_mode(struct ata_link *link, struct ata_device **unused)
+{
+	struct ata_device *dev;
+
+	ata_for_each_dev(dev, link, ENABLED) {
+		if (ata_dev_enabled(dev)) {
+			/* We don't really care */
+			dev->pio_mode = dev->xfer_mode = XFER_PIO_0;
+			dev->xfer_shift = ATA_SHIFT_PIO;
+			dev->flags |= ATA_DFLAG_PIO;
+			ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
+		}
+	}
+	return 0;
+}
+
+static struct scsi_host_template ts72xx_sht = {
+	ATA_PIO_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations ts72xx_port_ops = {
+	.inherits	= &ata_sff_port_ops,
+	.set_mode	= ts72xx_set_mode,
+};
+
+static __devinit int ts72xx_pata_probe(struct platform_device *pdev)
+{
+	struct ata_host *host;
+	struct ata_port *ap;
+	int irq;
+
+	struct resource *pata_cmd  = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	struct resource *pata_aux  = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	struct resource *pata_data = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+
+	if (!pata_cmd || !pata_aux || !pata_data) {
+		dev_err(&pdev->dev, "missing resource(s)\n");
+		return -EINVAL;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		irq = 0;  /* no irq */
+
+	/*
+	 * Now that that's out of the way, wire up the port
+	 */
+	host = ata_host_alloc(&pdev->dev, 1);
+	if (!host)
+		return -ENOMEM;
+	ap = host->ports[0];
+
+	ap->ops = &ts72xx_port_ops;
+	ap->pio_mask = 0x1f; /* PIO0-4 */
+	ap->flags |= ATA_FLAG_SLAVE_POSS;
+
+	/*
+	 * Use polling mode if there's no IRQ
+	 */
+	if (!irq) {
+		ap->flags |= ATA_FLAG_PIO_POLLING;
+		ata_port_desc(ap, "no IRQ, using PIO polling");
+	}
+
+	ap->ioaddr.cmd_addr = devm_ioremap(&pdev->dev, pata_cmd->start,
+			pata_cmd->end - pata_cmd->start + 1);
+	ap->ioaddr.ctl_addr = devm_ioremap(&pdev->dev, pata_aux->start,
+			pata_aux->end - pata_aux->start + 1);
+
+	if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) {
+		dev_err(&pdev->dev, "failed to map IO/CTL base\n");
+		return -ENOMEM;
+	}
+
+	ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr;
+
+	ata_sff_std_ports(&ap->ioaddr);
+	ap->ioaddr.data_addr = devm_ioremap(&pdev->dev, pata_data->start,
+			pata_data->end - pata_data->start + 1);
+
+	ata_port_desc(ap, "mmio cmd 0x%llx ctl 0x%llx",
+			(unsigned long long)pata_cmd->start,
+			(unsigned long long)pata_aux->start);
+
+	return ata_host_activate(host, irq, irq ? ata_sff_interrupt : NULL,
+			0 /* irq flags */, &ts72xx_sht);
+}
+
+static __devexit int ts72xx_pata_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ata_host *host = dev_get_drvdata(dev);
+
+	ata_host_detach(host);
+
+	return 0;
+}
+
+static struct platform_driver ts72xx_pata_platform_driver = {
+	.probe	= ts72xx_pata_probe,
+	.remove	= __devexit_p(ts72xx_pata_remove),
+	.driver	= {
+		.name	= "ts72xx-ide",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init ts72xx_pata_init(void)
+{
+	return platform_driver_register(&ts72xx_pata_platform_driver);
+}
+
+static void __exit ts72xx_pata_exit(void)
+{
+	platform_driver_unregister(&ts72xx_pata_platform_driver);
+}
+
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>");
+MODULE_DESCRIPTION("low-level driver for TS-72xx device PATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ts72xx_pata_init);
+module_exit(ts72xx_pata_exit);
diff --git a/drivers/ata/pata_ts9600.c b/drivers/ata/pata_ts9600.c
new file mode 100644
index 0000000..7a70550
--- /dev/null
+++ b/drivers/ata/pata_ts9600.c
@@ -0,0 +1,95 @@
+/*
+ *  Technologic Systems TS-9600 PATA device driver.
+ *
+ * (c) Copyright 2008  Matthieu Crapet <mcrapet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/libata.h>
+#include <scsi/scsi_host.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <mach/ts72xx.h>
+
+#define DRV_NAME  "pata_ts9600"
+#define DRV_VERSION "0.21"
+
+#define TS9600_IDE_IO	(TS72XX_PC104_8BIT_IO_PHYS_BASE + 0x1F0)
+#define TS9600_IDE_DATA	(TS72XX_PC104_16BIT_IO_PHYS_BASE + 0x1F0)
+#define TS9600_IDE_IRQ	IRQ_EP93XX_EXT3  // IRQ7 (no other possibility for arm)
+
+
+static void pata_ts9600_release(struct device *dev)
+{
+	/* nothing to do (no kfree) because we have static struct */
+}
+
+static struct resource ts9600_resources[] = {
+	[0] = {
+		.start	= TS9600_IDE_IO,
+		.end	= TS9600_IDE_IO + 8,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= TS9600_IDE_IO + 0x206,
+		.end	= TS9600_IDE_IO + 0x206 + 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= TS9600_IDE_DATA,
+		.end	= TS9600_IDE_DATA + 2,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = {
+		.start	= TS9600_IDE_IRQ,
+		.end	= TS9600_IDE_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+
+static struct platform_device ts9600_device = {
+	.name	= "ts72xx-ide",
+	.id	= 9600,
+	.dev	= {
+		.dma_mask = &ts9600_device.dev.coherent_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.release	= pata_ts9600_release,
+	},
+	.num_resources	= ARRAY_SIZE(ts9600_resources),
+	.resource	= ts9600_resources,
+};
+
+
+static __init int pata_ts9600_init(void)
+{
+	return platform_device_register(&ts9600_device);
+}
+
+static __exit void pata_ts9600_exit(void)
+{
+	platform_device_unregister(&ts9600_device);
+}
+
+module_init(pata_ts9600_init);
+module_exit(pata_ts9600_exit);
+
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>");
+MODULE_DESCRIPTION("TS-9600 PATA device driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
-- 
1.7.1