arch/sh64/mach-cayman/setup.c - arm/linux-arm-legacy - Git at Google

 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
  * arch/sh64/mach-cayman/setup.c
  *
  * SH5 Cayman support
  *
  * This file handles the architecture-dependent parts of initialization
  *
  * Copyright David J. Mckay.
  * Needs major work!
  *
  * benedict.gaster@superh.com:	 3rd May 2002
  *    Added support for ramdisk, removing statically linked romfs at the same time.
  *
  * lethal@linux-sh.org:          15th May 2003
  *    Use the generic procfs cpuinfo interface, just return a valid board name.
  */

 #include <linux/stddef.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
 #include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/seq_file.h>
 #include <asm/processor.h>
 #include <asm/platform.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/page.h>

 /*
  * Platform Dependent Interrupt Priorities.
  */

 /* Using defaults defined in irq.h */
 #define	RES NO_PRIORITY		/* Disabled */
 #define IR0 IRL0_PRIORITY	/* IRLs */
 #define IR1 IRL1_PRIORITY
 #define IR2 IRL2_PRIORITY
 #define IR3 IRL3_PRIORITY
 #define PCA INTA_PRIORITY	/* PCI Ints */
 #define PCB INTB_PRIORITY
 #define PCC INTC_PRIORITY
 #define PCD INTD_PRIORITY
 #define SER TOP_PRIORITY
 #define ERR TOP_PRIORITY
 #define PW0 TOP_PRIORITY
 #define PW1 TOP_PRIORITY
 #define PW2 TOP_PRIORITY
 #define PW3 TOP_PRIORITY
 #define DM0 NO_PRIORITY		/* DMA Ints */
 #define DM1 NO_PRIORITY
 #define DM2 NO_PRIORITY
 #define DM3 NO_PRIORITY
 #define DAE NO_PRIORITY
 #define TU0 TIMER_PRIORITY	/* TMU Ints */
 #define TU1 NO_PRIORITY
 #define TU2 NO_PRIORITY
 #define TI2 NO_PRIORITY
 #define ATI NO_PRIORITY		/* RTC Ints */
 #define PRI NO_PRIORITY
 #define CUI RTC_PRIORITY
 #define ERI SCIF_PRIORITY	/* SCIF Ints */
 #define RXI SCIF_PRIORITY
 #define BRI SCIF_PRIORITY
 #define TXI SCIF_PRIORITY
 #define ITI TOP_PRIORITY	/* WDT Ints */

 /* Setup for the SMSC FDC37C935 */
 #define SMSC_SUPERIO_BASE	0x04000000
 #define SMSC_CONFIG_PORT_ADDR	0x3f0
 #define SMSC_INDEX_PORT_ADDR	SMSC_CONFIG_PORT_ADDR
 #define SMSC_DATA_PORT_ADDR	0x3f1

 #define SMSC_ENTER_CONFIG_KEY	0x55
 #define SMSC_EXIT_CONFIG_KEY	0xaa

 #define SMCS_LOGICAL_DEV_INDEX	0x07
 #define SMSC_DEVICE_ID_INDEX	0x20
 #define SMSC_DEVICE_REV_INDEX	0x21
 #define SMSC_ACTIVATE_INDEX	0x30
 #define SMSC_PRIMARY_BASE_INDEX  0x60
 #define SMSC_SECONDARY_BASE_INDEX 0x62
 #define SMSC_PRIMARY_INT_INDEX	0x70
 #define SMSC_SECONDARY_INT_INDEX 0x72

 #define SMSC_IDE1_DEVICE	1
 #define SMSC_KEYBOARD_DEVICE	7
 #define SMSC_CONFIG_REGISTERS	8

 #define SMSC_SUPERIO_READ_INDEXED(index) ({ \
 	outb((index), SMSC_INDEX_PORT_ADDR); \
 	inb(SMSC_DATA_PORT_ADDR); })
 #define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
 	outb((index), SMSC_INDEX_PORT_ADDR); \
 	outb((val),   SMSC_DATA_PORT_ADDR); })

 #define IDE1_PRIMARY_BASE	0x01f0
 #define IDE1_SECONDARY_BASE	0x03f6

 unsigned long smsc_superio_virt;

 /*
  * Platform dependent structures: maps and parms block.
  */
 struct resource io_resources[] = {
 	/* To be updated with external devices */
 };

 struct resource kram_resources[] = {
 	{ "Kernel code", 0, 0 },	/* These must be last in the array */
 	{ "Kernel data", 0, 0 }		/* These must be last in the array */
 };

 struct resource xram_resources[] = {
 	/* To be updated with external devices */
 };

 struct resource rom_resources[] = {
 	/* To be updated with external devices */
 };

 struct sh64_platform platform_parms = {
 	.readonly_rootfs =	1,
 	.initial_root_dev =	0x0100,
 	.loader_type =		1,
 	.io_res_p =		io_resources,
 	.io_res_count =		ARRAY_SIZE(io_resources),
 	.kram_res_p =		kram_resources,
 	.kram_res_count =	ARRAY_SIZE(kram_resources),
 	.xram_res_p =		xram_resources,
 	.xram_res_count =	ARRAY_SIZE(xram_resources),
 	.rom_res_p =		rom_resources,
 	.rom_res_count =	ARRAY_SIZE(rom_resources),
 };

 int platform_int_priority[NR_INTC_IRQS] = {
 	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
 	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
 	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
 	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
 	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
 	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
 	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
 	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
 };

 static int __init smsc_superio_setup(void)
 {
 	unsigned char devid, devrev;

 	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
 	if (!smsc_superio_virt) {
 		panic("Unable to remap SMSC SuperIO\n");
 	}

 	/* Initially the chip is in run state */
 	/* Put it into configuration state */
 	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
 	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);

 	/* Read device ID info */
 	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
 	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
 	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);

 	/* Select the keyboard device */
 	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);

 	/* enable it */
 	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);

 	/* Select the interrupts */
 	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
 	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
 	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);

 #ifdef CONFIG_IDE
 	/*
 	 * Only IDE1 exists on the Cayman
 	 */

 	/* Power it on */
 	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);

 	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
 	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);

 	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
 				   SMSC_PRIMARY_BASE_INDEX + 0);
 	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
 				   SMSC_PRIMARY_BASE_INDEX + 1);

 	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
 				   SMSC_SECONDARY_BASE_INDEX + 0);
 	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
 				   SMSC_SECONDARY_BASE_INDEX + 1);

 	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);

 	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
 				   SMCS_LOGICAL_DEV_INDEX);

 	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
 	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
 	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
 	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
 #endif

 	/* Exit the configuraton state */
 	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);

 	return 0;
 }

 /* This is grotty, but, because kernel is always referenced on the link line
  * before any devices, this is safe.
  */
 __initcall(smsc_superio_setup);

 void __init platform_setup(void)
 {
 	/* Cayman platform leaves the decision to head.S, for now */
 	platform_parms.fpu_flags = fpu_in_use;
 }

 void __init platform_monitor(void)
 {
 	/* Nothing yet .. */
 }

 void __init platform_reserve(void)
 {
 	/* Nothing yet .. */
 }

 const char *get_system_type(void)
 {
 	return "Hitachi Cayman";
 }
	/*
	* This file is subject to the terms and conditions of the GNU General Public
	* License. See the file "COPYING" in the main directory of this archive
	* for more details.
	*
	* arch/sh64/mach-cayman/setup.c
	*
	* SH5 Cayman support
	*
	* This file handles the architecture-dependent parts of initialization
	*
	* Copyright David J. Mckay.
	* Needs major work!
	*
	* benedict.gaster@superh.com: 3rd May 2002
	* Added support for ramdisk, removing statically linked romfs at the same time.
	*
	* lethal@linux-sh.org: 15th May 2003
	* Use the generic procfs cpuinfo interface, just return a valid board name.
	*/

	#include <linux/stddef.h>
	#include <linux/init.h>
	#include <linux/mm.h>
	#include <linux/bootmem.h>
	#include <linux/delay.h>
	#include <linux/kernel.h>
	#include <linux/seq_file.h>
	#include <asm/processor.h>
	#include <asm/platform.h>
	#include <asm/io.h>
	#include <asm/irq.h>
	#include <asm/page.h>

	/*
	* Platform Dependent Interrupt Priorities.
	*/

	/* Using defaults defined in irq.h */
	#define RES NO_PRIORITY /* Disabled */
	#define IR0 IRL0_PRIORITY /* IRLs */
	#define IR1 IRL1_PRIORITY
	#define IR2 IRL2_PRIORITY
	#define IR3 IRL3_PRIORITY
	#define PCA INTA_PRIORITY /* PCI Ints */
	#define PCB INTB_PRIORITY
	#define PCC INTC_PRIORITY
	#define PCD INTD_PRIORITY
	#define SER TOP_PRIORITY
	#define ERR TOP_PRIORITY
	#define PW0 TOP_PRIORITY
	#define PW1 TOP_PRIORITY
	#define PW2 TOP_PRIORITY
	#define PW3 TOP_PRIORITY
	#define DM0 NO_PRIORITY /* DMA Ints */
	#define DM1 NO_PRIORITY
	#define DM2 NO_PRIORITY
	#define DM3 NO_PRIORITY
	#define DAE NO_PRIORITY
	#define TU0 TIMER_PRIORITY /* TMU Ints */
	#define TU1 NO_PRIORITY
	#define TU2 NO_PRIORITY
	#define TI2 NO_PRIORITY
	#define ATI NO_PRIORITY /* RTC Ints */
	#define PRI NO_PRIORITY
	#define CUI RTC_PRIORITY
	#define ERI SCIF_PRIORITY /* SCIF Ints */
	#define RXI SCIF_PRIORITY
	#define BRI SCIF_PRIORITY
	#define TXI SCIF_PRIORITY
	#define ITI TOP_PRIORITY /* WDT Ints */

	/* Setup for the SMSC FDC37C935 */
	#define SMSC_SUPERIO_BASE 0x04000000
	#define SMSC_CONFIG_PORT_ADDR 0x3f0
	#define SMSC_INDEX_PORT_ADDR SMSC_CONFIG_PORT_ADDR
	#define SMSC_DATA_PORT_ADDR 0x3f1

	#define SMSC_ENTER_CONFIG_KEY 0x55
	#define SMSC_EXIT_CONFIG_KEY 0xaa

	#define SMCS_LOGICAL_DEV_INDEX 0x07
	#define SMSC_DEVICE_ID_INDEX 0x20
	#define SMSC_DEVICE_REV_INDEX 0x21
	#define SMSC_ACTIVATE_INDEX 0x30
	#define SMSC_PRIMARY_BASE_INDEX 0x60
	#define SMSC_SECONDARY_BASE_INDEX 0x62
	#define SMSC_PRIMARY_INT_INDEX 0x70
	#define SMSC_SECONDARY_INT_INDEX 0x72

	#define SMSC_IDE1_DEVICE 1
	#define SMSC_KEYBOARD_DEVICE 7
	#define SMSC_CONFIG_REGISTERS 8

	#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
	outb((index), SMSC_INDEX_PORT_ADDR); \
	inb(SMSC_DATA_PORT_ADDR); })
	#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
	outb((index), SMSC_INDEX_PORT_ADDR); \
	outb((val), SMSC_DATA_PORT_ADDR); })

	#define IDE1_PRIMARY_BASE 0x01f0
	#define IDE1_SECONDARY_BASE 0x03f6

	unsigned long smsc_superio_virt;

	/*
	* Platform dependent structures: maps and parms block.
	*/
	struct resource io_resources[] = {
	/* To be updated with external devices */
	};

	struct resource kram_resources[] = {
	{ "Kernel code", 0, 0 }, /* These must be last in the array */
	{ "Kernel data", 0, 0 } /* These must be last in the array */
	};

	struct resource xram_resources[] = {
	/* To be updated with external devices */
	};

	struct resource rom_resources[] = {
	/* To be updated with external devices */
	};

	struct sh64_platform platform_parms = {
	.readonly_rootfs = 1,
	.initial_root_dev = 0x0100,
	.loader_type = 1,
	.io_res_p = io_resources,
	.io_res_count = ARRAY_SIZE(io_resources),
	.kram_res_p = kram_resources,
	.kram_res_count = ARRAY_SIZE(kram_resources),
	.xram_res_p = xram_resources,
	.xram_res_count = ARRAY_SIZE(xram_resources),
	.rom_res_p = rom_resources,
	.rom_res_count = ARRAY_SIZE(rom_resources),
	};

	int platform_int_priority[NR_INTC_IRQS] = {
	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
	RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
	RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
	RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
	RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
	RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
	};

	static int __init smsc_superio_setup(void)
	{
	unsigned char devid, devrev;

	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
	if (!smsc_superio_virt) {
	panic("Unable to remap SMSC SuperIO\n");
	}

	/* Initially the chip is in run state */
	/* Put it into configuration state */
	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);

	/* Read device ID info */
	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);

	/* Select the keyboard device */
	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);

	/* enable it */
	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);

	/* Select the interrupts */
	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);

	#ifdef CONFIG_IDE
	/*
	* Only IDE1 exists on the Cayman
	*/

	/* Power it on */
	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);

	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);

	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
	SMSC_PRIMARY_BASE_INDEX + 0);
	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
	SMSC_PRIMARY_BASE_INDEX + 1);

	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
	SMSC_SECONDARY_BASE_INDEX + 0);
	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
	SMSC_SECONDARY_BASE_INDEX + 1);

	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);

	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
	SMCS_LOGICAL_DEV_INDEX);

	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
	#endif

	/* Exit the configuraton state */
	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);

	return 0;
	}

	/* This is grotty, but, because kernel is always referenced on the link line
	* before any devices, this is safe.
	*/
	__initcall(smsc_superio_setup);

	void __init platform_setup(void)
	{
	/* Cayman platform leaves the decision to head.S, for now */
	platform_parms.fpu_flags = fpu_in_use;
	}

	void __init platform_monitor(void)
	{
	/* Nothing yet .. */
	}

	void __init platform_reserve(void)
	{
	/* Nothing yet .. */
	}

	const char *get_system_type(void)
	{
	return "Hitachi Cayman";
	}