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git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3005 311d38ba-8fff-0310-9ca6-ca027cbcb966
187 lines
5.6 KiB
Diff
187 lines
5.6 KiB
Diff
From f260d5fa4c99cd7df949e6408af59807f8ccf224 Mon Sep 17 00:00:00 2001
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From: Cliff Brake <cbrake@happy.dev.bec-systems.com>
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Date: Fri, 20 Jul 2007 18:59:39 -0400
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Subject: [PATCH] cm-x270-ide
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---
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drivers/ide/Kconfig | 8 +++
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drivers/ide/arm/Makefile | 1 +
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drivers/ide/arm/cm-x270-ide.c | 135 +++++++++++++++++++++++++++++++++++++++++
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3 files changed, 144 insertions(+), 0 deletions(-)
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create mode 100644 drivers/ide/arm/cm-x270-ide.c
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diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
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index b1a9b81..7de4155 100644
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--- a/drivers/ide/Kconfig
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+++ b/drivers/ide/Kconfig
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@@ -864,6 +864,14 @@ config BLK_DEV_IDE_BAST
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Say Y here if you want to support the onboard IDE channels on the
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Simtec BAST or the Thorcom VR1000
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+config BLK_DEV_IDE_CM_X270
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+ tristate "CompuLab CM-X270 IDE support"
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+ depends on ARM && (MACH_ARMCORE)
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+ help
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+ Say Y here if you want to support the onboard IDE channels on the
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+ CompuLab CM-X270 module
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+
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+
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config BLK_DEV_GAYLE
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bool "Amiga Gayle IDE interface support"
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depends on AMIGA
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diff --git a/drivers/ide/arm/Makefile b/drivers/ide/arm/Makefile
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index 6a78f07..e5cadb7 100644
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--- a/drivers/ide/arm/Makefile
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+++ b/drivers/ide/arm/Makefile
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@@ -2,5 +2,6 @@
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obj-$(CONFIG_BLK_DEV_IDE_ICSIDE) += icside.o
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obj-$(CONFIG_BLK_DEV_IDE_RAPIDE) += rapide.o
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obj-$(CONFIG_BLK_DEV_IDE_BAST) += bast-ide.o
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+obj-$(CONFIG_BLK_DEV_IDE_CM_X270) += cm-x270-ide.o
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EXTRA_CFLAGS := -Idrivers/ide
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diff --git a/drivers/ide/arm/cm-x270-ide.c b/drivers/ide/arm/cm-x270-ide.c
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new file mode 100644
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index 0000000..a8b15aa
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--- /dev/null
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+++ b/drivers/ide/arm/cm-x270-ide.c
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@@ -0,0 +1,135 @@
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+/* linux/drivers/ide/arm/cm-x270-ide.c
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+ *
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+ * Copyright (c) 2006 CompuLab, Ltd
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+ * Mike Rapoport <mike@compulab.co.il>
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+ *
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+ * Based on linux/drivers/ide/arm/bast-ide.c
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+ * Copyright (c) 2003-2004 Simtec Electronics
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+ * Ben Dooks <ben@simtec.co.uk>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/errno.h>
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+#include <linux/ide.h>
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+#include <linux/init.h>
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+#include <linux/irq.h>
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+
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+#include <asm/mach-types.h>
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+
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+#include <asm/io.h>
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+#include <asm/arch/pxa-regs.h>
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+#include <asm/arch/cm-x270.h>
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+
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+#define CMX270_SB270_IDECS0_VIRT (CMX270_IDE104_VIRT + (1<<24) + (1<<25))
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+#define CMX270_SB270_IDECS1_VIRT (CMX270_IDE104_VIRT + (1<<25))
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+#define CMX270_ATX_IDECS0_VIRT (CMX270_IDE104_VIRT + (1<<25))
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+#define CMX270_ATX_IDECS1_VIRT (CMX270_IDE104_VIRT + (1<<25) + (1<<22))
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+
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+/* list of registered interfaces */
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+static ide_hwif_t *ifs[1];
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+
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+static int __init
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+cmx270_ide_register(unsigned int base, unsigned int aux, int irq,
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+ ide_hwif_t **hwif)
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+{
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+ hw_regs_t hw;
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+
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+ memset(&hw, 0, sizeof(hw));
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+
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+ if(!base || !aux) return -EINVAL;
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+
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+ printk(KERN_DEBUG "%s: base = %08x, aux = %08x\n", __FUNCTION__,
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+ base, aux);
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+
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+ /* Different mappings for local bus IDE and PCMCIA IDE */
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+ if(base == CMX270_SB270_IDECS0_VIRT) {
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+ hw.io_ports[IDE_DATA_OFFSET] = base + 0;
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+ hw.io_ports[IDE_ERROR_OFFSET] = base + (0x1<<3);
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+ hw.io_ports[IDE_NSECTOR_OFFSET]= base + (0x2<<3);
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+ hw.io_ports[IDE_SECTOR_OFFSET]= base + (0x3<<3);
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+ hw.io_ports[IDE_LCYL_OFFSET]= base + (0x4<<3);
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+ hw.io_ports[IDE_HCYL_OFFSET]= base + (0x5<<3);
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+ hw.io_ports[IDE_SELECT_OFFSET]= base + (0x6<<3);
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+ hw.io_ports[IDE_STATUS_OFFSET]= base + (0x7<<3);
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+ hw.io_ports[IDE_CONTROL_OFFSET] = aux+(0x6<<3);
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+ }
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+ else if (base == CMX270_ATX_IDECS0_VIRT) { /* atx base */
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+ hw.io_ports[IDE_DATA_OFFSET] = base + 0;
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+ hw.io_ports[IDE_ERROR_OFFSET] = base + 8;
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+ hw.io_ports[IDE_NSECTOR_OFFSET]= base + 2;
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+ hw.io_ports[IDE_SECTOR_OFFSET]= base + 10;
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+ hw.io_ports[IDE_LCYL_OFFSET]= base + 4;
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+ hw.io_ports[IDE_HCYL_OFFSET]= base + 12;
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+ hw.io_ports[IDE_SELECT_OFFSET]= base + 6; //6;
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+ hw.io_ports[IDE_STATUS_OFFSET]= base + 14;
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+ hw.io_ports[IDE_CONTROL_OFFSET] = (aux+0x6);
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+ } else {
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+ printk(KERN_DEBUG "%s: registering wrong IDE i/f\n", __FUNCTION__);
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+ hw.io_ports[IDE_DATA_OFFSET] = base + 8;
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+ hw.io_ports[IDE_ERROR_OFFSET] = base + 13;
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+ hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
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+ hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
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+ hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
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+ hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
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+ hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
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+ hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
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+ hw.io_ports[IDE_CONTROL_OFFSET] = aux;
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+ }
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+
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+ hw.irq = irq;
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+
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+ return ide_register_hw(&hw, hwif);
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+}
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+
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+static int __init cmx270_ide_init(void)
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+{
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+ int retval = 0;
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+
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+ if (!(machine_is_armcore()))
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+ goto out;
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+
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+ printk("CM-X270: initializing IDE interface\n");
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+
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+ MSC1 = 0x7ffc7ff4;
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+
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+ /* Interrupts on rising edge: lines are inverted before they get to
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+ the PXA */
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+ pxa_gpio_mode(IRQ_TO_GPIO(CMX270_IDE_IRQ));
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+
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+ /* try SB-X270 */
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+ set_irq_type(CMX270_IDE_IRQ, IRQ_TYPE_EDGE_RISING);
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+ retval = cmx270_ide_register(CMX270_SB270_IDECS0_VIRT,
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+ CMX270_SB270_IDECS1_VIRT,
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+ CMX270_IDE_IRQ, &ifs[0]);
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+ if (retval >= 0) {
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+ printk(KERN_DEBUG "%s: found IDE interface on SB-X270\n",
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+ __FUNCTION__);
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+ goto out;
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+ }
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+
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+ /* SB-X270 detection failed, try ATX */
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+ set_irq_type(CMX270_IDE_IRQ, IRQ_TYPE_EDGE_FALLING);
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+ retval = cmx270_ide_register(CMX270_ATX_IDECS0_VIRT,
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+ CMX270_ATX_IDECS1_VIRT,
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+ CMX270_IDE_IRQ, &ifs[0]);
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+
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+ if ( retval >= 0 ) {
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+ printk(KERN_DEBUG "%s: found IDE interface on ATX\n",
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+ __FUNCTION__);
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+ goto out;
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+ }
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+
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+ out:
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+ return retval;
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+}
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+
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+module_init(cmx270_ide_init);
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+
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+MODULE_AUTHOR("CompuLab");
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+MODULE_LICENSE("GPL");
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+MODULE_DESCRIPTION("CompuLab CM-X270 IDE driver");
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--
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1.5.1.6
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