arch/mips/txx9/jmr3927/setup.c - arm/linux - Git at Google

 /*
  *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *  You should have received a copy of the  GNU General Public License along
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * Copyright 2001 MontaVista Software Inc.
  * Author: MontaVista Software, Inc.
  *              ahennessy@mvista.com
  *
  * Copyright (C) 2000-2001 Toshiba Corporation
  * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
  */

 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <asm/reboot.h>
 #include <asm/txx9pio.h>
 #include <asm/txx9/generic.h>
 #include <asm/txx9/pci.h>
 #include <asm/txx9/jmr3927.h>
 #include <asm/mipsregs.h>

 static void jmr3927_machine_restart(char *command)
 {
 	local_irq_disable();
 #if 1	/* Resetting PCI bus */
 	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
 	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
 	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR);	/* flush WB */
 	mdelay(1);
 	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
 #endif
 	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
 	/* fallback */
 	(*_machine_halt)();
 }

 static void __init jmr3927_time_init(void)
 {
 	tx3927_time_init(0, 1);
 }

 #define DO_WRITE_THROUGH

 static void jmr3927_board_init(void);

 static void __init jmr3927_mem_setup(void)
 {
 	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);

 	_machine_restart = jmr3927_machine_restart;

 	/* cache setup */
 	{
 		unsigned int conf;
 #ifdef DO_WRITE_THROUGH
 		int mips_config_cwfon = 0;
 		int mips_config_wbon = 0;
 #else
 		int mips_config_cwfon = 1;
 		int mips_config_wbon = 1;
 #endif

 		conf = read_c0_conf();
 		conf &= ~(TX39_CONF_WBON | TX39_CONF_CWFON);
 		conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
 		conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;

 		write_c0_conf(conf);
 		write_c0_cache(0);
 	}

 	/* initialize board */
 	jmr3927_board_init();

 	tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */
 }

 static void __init jmr3927_pci_setup(void)
 {
 #ifdef CONFIG_PCI
 	int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
 	struct pci_controller *c;

 	c = txx9_alloc_pci_controller(&txx9_primary_pcic,
 				      JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
 				      JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
 	register_pci_controller(c);
 	if (!extarb) {
 		/* Reset PCI Bus */
 		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
 		udelay(100);
 		jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
 				    JMR3927_IOC_RESET_ADDR);
 		udelay(100);
 		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
 	}
 	tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
 	tx3927_setup_pcierr_irq();
 #endif /* CONFIG_PCI */
 }

 static void __init jmr3927_board_init(void)
 {
 	txx9_cpu_clock = JMR3927_CORECLK;
 	/* SDRAMC are configured by PROM */

 	/* ROMC */
 	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
 	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
 	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
 	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;

 	/* Pin selection */
 	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
 	tx3927_ccfgptr->pcfg |=
 		TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
 		(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));

 	tx3927_setup();

 	/* PIO[15:12] connected to LEDs */
 	__raw_writel(0x0000f000, &tx3927_pioptr->dir);
 	gpio_request(11, "dipsw1");
 	gpio_request(10, "dipsw2");

 	jmr3927_pci_setup();

 	/* SIO0 DTR on */
 	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);

 	jmr3927_led_set(0);

 	printk(KERN_INFO
 	       "JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
 	       jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
 	       jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
 	       jmr3927_dipsw1(), jmr3927_dipsw2(),
 	       jmr3927_dipsw3(), jmr3927_dipsw4());
 }

 /* This trick makes rtc-ds1742 driver usable as is. */
 static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
 {
 	if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
 		return port;
 	port = (port & 0xffff0000) | (port & 0x7fff << 1);
 #ifdef __BIG_ENDIAN
 	return port;
 #else
 	return port | 1;
 #endif
 }

 static void __init jmr3927_rtc_init(void)
 {
 	static struct resource __initdata res = {
 		.start	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
 		.end	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
 		.flags	= IORESOURCE_MEM,
 	};
 	platform_device_register_simple("rtc-ds1742", -1, &res, 1);
 }

 static void __init jmr3927_mtd_init(void)
 {
 	int i;

 	for (i = 0; i < 2; i++)
 		tx3927_mtd_init(i);
 }

 static void __init jmr3927_device_init(void)
 {
 	unsigned long iocled_base = JMR3927_IOC_LED_ADDR - IO_BASE;
 #ifdef __LITTLE_ENDIAN
 	iocled_base |= 1;
 #endif
 	__swizzle_addr_b = jmr3927_swizzle_addr_b;
 	jmr3927_rtc_init();
 	tx3927_wdt_init();
 	jmr3927_mtd_init();
 	txx9_iocled_init(iocled_base, -1, 8, 1, "green", NULL);
 }

 struct txx9_board_vec jmr3927_vec __initdata = {
 	.system = "Toshiba JMR_TX3927",
 	.prom_init = jmr3927_prom_init,
 	.mem_setup = jmr3927_mem_setup,
 	.irq_setup = jmr3927_irq_setup,
 	.time_init = jmr3927_time_init,
 	.device_init = jmr3927_device_init,
 #ifdef CONFIG_PCI
 	.pci_map_irq = jmr3927_pci_map_irq,
 #endif
 };
	/*
	* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
	* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
	* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 675 Mass Ave, Cambridge, MA 02139, USA.
	*
	* Copyright 2001 MontaVista Software Inc.
	* Author: MontaVista Software, Inc.
	* ahennessy@mvista.com
	*
	* Copyright (C) 2000-2001 Toshiba Corporation
	* Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
	*/

	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/types.h>
	#include <linux/ioport.h>
	#include <linux/delay.h>
	#include <linux/platform_device.h>
	#include <linux/gpio.h>
	#include <asm/reboot.h>
	#include <asm/txx9pio.h>
	#include <asm/txx9/generic.h>
	#include <asm/txx9/pci.h>
	#include <asm/txx9/jmr3927.h>
	#include <asm/mipsregs.h>

	static void jmr3927_machine_restart(char *command)
	{
	local_irq_disable();
	#if 1 /* Resetting PCI bus */
	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR); /* flush WB */
	mdelay(1);
	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
	#endif
	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
	/* fallback */
	(*_machine_halt)();
	}

	static void __init jmr3927_time_init(void)
	{
	tx3927_time_init(0, 1);
	}

	#define DO_WRITE_THROUGH

	static void jmr3927_board_init(void);

	static void __init jmr3927_mem_setup(void)
	{
	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);

	_machine_restart = jmr3927_machine_restart;

	/* cache setup */
	{
	unsigned int conf;
	#ifdef DO_WRITE_THROUGH
	int mips_config_cwfon = 0;
	int mips_config_wbon = 0;
	#else
	int mips_config_cwfon = 1;
	int mips_config_wbon = 1;
	#endif

	conf = read_c0_conf();
	conf &= ~(TX39_CONF_WBON \| TX39_CONF_CWFON);
	conf \|= mips_config_wbon ? TX39_CONF_WBON : 0;
	conf \|= mips_config_cwfon ? TX39_CONF_CWFON : 0;

	write_c0_conf(conf);
	write_c0_cache(0);
	}

	/* initialize board */
	jmr3927_board_init();

	tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */
	}

	static void __init jmr3927_pci_setup(void)
	{
	#ifdef CONFIG_PCI
	int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
	struct pci_controller *c;

	c = txx9_alloc_pci_controller(&txx9_primary_pcic,
	JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
	JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
	register_pci_controller(c);
	if (!extarb) {
	/* Reset PCI Bus */
	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
	udelay(100);
	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
	JMR3927_IOC_RESET_ADDR);
	udelay(100);
	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
	}
	tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
	tx3927_setup_pcierr_irq();
	#endif /* CONFIG_PCI */
	}

	static void __init jmr3927_board_init(void)
	{
	txx9_cpu_clock = JMR3927_CORECLK;
	/* SDRAMC are configured by PROM */

	/* ROMC */
	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 \| 0x00030048;
	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 \| 0x000064c8;
	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 \| 0x0003f698;
	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 \| 0x0000f218;

	/* Pin selection */
	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
	tx3927_ccfgptr->pcfg \|=
	TX3927_PCFG_SELSIOC(0) \| TX3927_PCFG_SELSIO_ALL \|
	(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));

	tx3927_setup();

	/* PIO[15:12] connected to LEDs */
	__raw_writel(0x0000f000, &tx3927_pioptr->dir);
	gpio_request(11, "dipsw1");
	gpio_request(10, "dipsw2");

	jmr3927_pci_setup();

	/* SIO0 DTR on */
	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);

	jmr3927_led_set(0);

	printk(KERN_INFO
	"JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
	jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
	jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
	jmr3927_dipsw1(), jmr3927_dipsw2(),
	jmr3927_dipsw3(), jmr3927_dipsw4());
	}

	/* This trick makes rtc-ds1742 driver usable as is. */
	static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
	{
	if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
	return port;
	port = (port & 0xffff0000) \| (port & 0x7fff << 1);
	#ifdef __BIG_ENDIAN
	return port;
	#else
	return port \| 1;
	#endif
	}

	static void __init jmr3927_rtc_init(void)
	{
	static struct resource __initdata res = {
	.start = JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
	.end = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
	.flags = IORESOURCE_MEM,
	};
	platform_device_register_simple("rtc-ds1742", -1, &res, 1);
	}

	static void __init jmr3927_mtd_init(void)
	{
	int i;

	for (i = 0; i < 2; i++)
	tx3927_mtd_init(i);
	}

	static void __init jmr3927_device_init(void)
	{
	unsigned long iocled_base = JMR3927_IOC_LED_ADDR - IO_BASE;
	#ifdef __LITTLE_ENDIAN
	iocled_base \|= 1;
	#endif
	__swizzle_addr_b = jmr3927_swizzle_addr_b;
	jmr3927_rtc_init();
	tx3927_wdt_init();
	jmr3927_mtd_init();
	txx9_iocled_init(iocled_base, -1, 8, 1, "green", NULL);
	}

	struct txx9_board_vec jmr3927_vec __initdata = {
	.system = "Toshiba JMR_TX3927",
	.prom_init = jmr3927_prom_init,
	.mem_setup = jmr3927_mem_setup,
	.irq_setup = jmr3927_irq_setup,
	.time_init = jmr3927_time_init,
	.device_init = jmr3927_device_init,
	#ifdef CONFIG_PCI
	.pci_map_irq = jmr3927_pci_map_irq,
	#endif
	};