x86: Add support for IDE on the legacy I/O ports

Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

6 files changed, 226 insertions, 52 deletions

diff --git a/arch/x86/boards/x86_generic/Makefile b/arch/x86/boards/x86_generic/Makefile
index 248240da07..fca707dd8b 100644
--- a/arch/x86/boards/x86_generic/Makefile
+++ b/arch/x86/boards/x86_generic/Makefile
@@ -1 +1,4 @@
 obj-y += generic_pc.o
+obj-$(CONFIG_DISK_INTF_PLATFORM_IDE) += intf_platform_ide.o
+obj-$(CONFIG_DISK_BIOS) += disk_bios_drive.o
+obj-$(CONFIG_DRIVER_SERIAL_NS16550) += serial_ns16550.o
diff --git a/arch/x86/boards/x86_generic/disk_bios_drive.c b/arch/x86/boards/x86_generic/disk_bios_drive.c
new file mode 100644
index 0000000000..f33f48c3fb
--- /dev/null
+++ b/arch/x86/boards/x86_generic/disk_bios_drive.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2009 Juergen Beisert, Pengutronix
+ *
+ * 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.
+ *
+ *
+ */
+
+/**
+ * @file
+ * @brief Generic PC support for the BIOS disk interface
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <init.h>
+#include <linux/err.h>
+#include "envsector.h"
+
+static int bios_disk_init(void)
+{
+	struct cdev *cdev;
+
+	add_generic_device("biosdrive", DEVICE_ID_DYNAMIC, NULL, 0, 0,
+			   IORESOURCE_MEM, NULL);
+
+	if (pers_env_size != PATCH_AREA_PERS_SIZE_UNUSED) {
+		cdev = devfs_add_partition("biosdisk0",
+				pers_env_storage * 512,
+				(unsigned)pers_env_size * 512,
+				DEVFS_PARTITION_FIXED, "env0");
+		printf("Partition: %ld\n", IS_ERR(cdev) ? PTR_ERR(cdev) : 0);
+	} else
+		printf("No persistent storage defined\n");
+
+	return 0;
+}
+device_initcall(bios_disk_init);
diff --git a/arch/x86/boards/x86_generic/envsector.h b/arch/x86/boards/x86_generic/envsector.h
new file mode 100644
index 0000000000..86511c8af7
--- /dev/null
+++ b/arch/x86/boards/x86_generic/envsector.h
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ *
+ *
+ */
+
+/**
+ * @file
+ * @brief x86 Generic PC common definitions
+ */
+#ifndef __X86_ENVSECTOR_H
+#define __ENVSECTOR_H
+
+/*
+ * These datas are from the MBR, created by the linker and filled by the
+ * setup tool while installing barebox on the disk drive
+ */
+extern uint64_t pers_env_storage;
+extern uint16_t pers_env_size;
+extern uint8_t pers_env_drive;
+
+/**
+ * Persistent environment "not used" marker.
+ * Note: Must be in accordance to the value the tool "setup_mbr" writes.
+ */
+#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
+
+#endif
diff --git a/arch/x86/boards/x86_generic/generic_pc.c b/arch/x86/boards/x86_generic/generic_pc.c
index 74a72243a3..5560efc889 100644
--- a/arch/x86/boards/x86_generic/generic_pc.c
+++ b/arch/x86/boards/x86_generic/generic_pc.c
@@ -24,67 +24,16 @@
 #include <driver.h>
 #include <init.h>
 #include <asm/syslib.h>
-#include <ns16550.h>
 #include <linux/err.h>
 
-/*
- * These datas are from the MBR, created by the linker and filled by the
- * setup tool while installing barebox on the disk drive
- */
-extern uint64_t pers_env_storage;
-extern uint16_t pers_env_size;
-extern uint8_t pers_env_drive;
-
-/**
- * Persistent environment "not used" marker.
- * Note: Must be in accordance to the value the tool "setup_mbr" writes.
- */
-#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
-
 static int devices_init(void)
 {
-	struct cdev *cdev;
-
 	/* extended memory only */
 	add_mem_device("ram0", 0x0, bios_get_memsize() << 10,
 		       IORESOURCE_MEM_WRITEABLE);
-	add_generic_device("biosdrive", DEVICE_ID_DYNAMIC, NULL, 0, 0, IORESOURCE_MEM,
-			NULL);
-
-	if (pers_env_size != PATCH_AREA_PERS_SIZE_UNUSED) {
-		cdev = devfs_add_partition("biosdisk0",
-				pers_env_storage * 512,
-				(unsigned)pers_env_size * 512,
-				DEVFS_PARTITION_FIXED, "env0");
-		printf("Partition: %ld\n", IS_ERR(cdev) ? PTR_ERR(cdev) : 0);
-	} else
-		printf("No persistent storage defined\n");
-
-        return 0;
-}
-device_initcall(devices_init);
-
-#ifdef CONFIG_DRIVER_SERIAL_NS16550
-
-static struct NS16550_plat serial_plat = {
-       .clock = 1843200,
-       .reg_read = x86_uart_read,
-       .reg_write = x86_uart_write,
-};
-
-static int pc_console_init(void)
-{
-	barebox_set_model("X86 generic barebox");
-	barebox_set_hostname("x86");
-
-	/* Register the serial port */
-	add_ns16550_device(DEVICE_ID_DYNAMIC, 0x3f8, 8, 0, &serial_plat);
-
 	return 0;
 }
-console_initcall(pc_console_init);
-
-#endif
+device_initcall(devices_init);
 
 /** @page generic_pc Generic PC based bootloader
 
diff --git a/arch/x86/boards/x86_generic/intf_platform_ide.c b/arch/x86/boards/x86_generic/intf_platform_ide.c
new file mode 100644
index 0000000000..18a2620ce0
--- /dev/null
+++ b/arch/x86/boards/x86_generic/intf_platform_ide.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2014 Juergen Beisert, Pengutronix, Michel Stam,
+ * Fugro Intersite
+ *
+ * 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.
+ *
+ *
+ */
+
+/**
+ * @file
+ * @brief Generic PC support for the IDE platform driver
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <init.h>
+#include <linux/err.h>
+#include <platform_ide.h>
+#include "envsector.h"
+
+static struct ide_port_info ide_plat = {
+	.ioport_shift = 0,
+	.dataif_be = 0,
+};
+
+static struct resource primary_ide_resources[] = {
+	{
+		.name = "base",
+		.start = 0x1f0,
+		.end =  0x1f7,
+		.flags = IORESOURCE_IO
+	},
+	{
+		.name = "alt",
+		.start = 0x3f6,
+		.end =  0x3f7,
+		.flags = IORESOURCE_IO
+	}
+};
+
+static struct resource secondary_ide_resources[] = {
+	{
+		.name = "base",
+		.start = 0x170,
+		.end =  0x177,
+		.flags = IORESOURCE_IO
+	},
+};
+
+static struct device_d primary_ide_device = {
+	.name = "ide_intf",
+	.id = 0,
+	.platform_data = &ide_plat,
+	.resource = primary_ide_resources,
+	.num_resources = ARRAY_SIZE(primary_ide_resources),
+};
+
+static struct device_d secondary_ide_device = {
+	.name = "ide_intf",
+	.id = 1,
+	.platform_data = &ide_plat,
+	.resource = secondary_ide_resources,
+	.num_resources = ARRAY_SIZE(secondary_ide_resources),
+};
+
+static int platform_ide_init(void)
+{
+	struct cdev *cdev;
+
+	platform_device_register(&primary_ide_device);
+	platform_device_register(&secondary_ide_device);
+
+	if (pers_env_size != PATCH_AREA_PERS_SIZE_UNUSED) {
+		cdev = devfs_add_partition("ata0",
+				pers_env_storage * 512,
+				(unsigned)pers_env_size * 512,
+				DEVFS_PARTITION_FIXED, "env0");
+		printf("Partition: %ld\n", IS_ERR(cdev) ? PTR_ERR(cdev) : 0);
+	} else
+		printf("No persistent storage defined\n");
+
+	return 0;
+}
+device_initcall(platform_ide_init);
diff --git a/arch/x86/boards/x86_generic/serial_ns16550.c b/arch/x86/boards/x86_generic/serial_ns16550.c
new file mode 100644
index 0000000000..cae61df1d6
--- /dev/null
+++ b/arch/x86/boards/x86_generic/serial_ns16550.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 Juergen Beisert, Pengutronix, Michel Stam,
+ * Fugro Intersite
+ *
+ * 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.
+ *
+ *
+ */
+
+/**
+ * @file
+ * @brief Generic PC support to let barebox acting as a boot loader
+ */
+
+#include <common.h>
+#include <types.h>
+#include <driver.h>
+#include <init.h>
+#include <asm/syslib.h>
+#include <ns16550.h>
+#include <linux/err.h>
+
+static struct NS16550_plat serial_plat = {
+	.clock = 1843200,
+	.reg_read = x86_uart_read,
+	.reg_write = x86_uart_write,
+};
+
+static int pc_console_init(void)
+{
+	barebox_set_model("X86 generic barebox");
+	barebox_set_hostname("x86");
+
+	/* Register the serial port */
+	add_ns16550_device(DEVICE_ID_DYNAMIC, 0x3f8, 8, 0, &serial_plat);
+
+	return 0;
+}
+console_initcall(pc_console_init);