arch/ppc/platforms/85xx/sbc8560.c - maze/linux - Git at Google

 /*
  * arch/ppc/platforms/85xx/sbc8560.c
  *
  * Wind River SBC8560 board specific routines
  *
  * Maintainer: Kumar Gala
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
  * 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.
  */

 #include <linux/config.h>
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/reboot.h>
 #include <linux/pci.h>
 #include <linux/kdev_t.h>
 #include <linux/major.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/serial.h>
 #include <linux/tty.h>	/* for linux/serial_core.h */
 #include <linux/serial_core.h>
 #include <linux/initrd.h>
 #include <linux/module.h>
 #include <linux/fsl_devices.h>

 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/atomic.h>
 #include <asm/time.h>
 #include <asm/io.h>
 #include <asm/machdep.h>
 #include <asm/open_pic.h>
 #include <asm/bootinfo.h>
 #include <asm/pci-bridge.h>
 #include <asm/mpc85xx.h>
 #include <asm/irq.h>
 #include <asm/immap_85xx.h>
 #include <asm/kgdb.h>
 #include <asm/ppc_sys.h>
 #include <mm/mmu_decl.h>

 #include <syslib/ppc85xx_common.h>
 #include <syslib/ppc85xx_setup.h>

 #ifdef CONFIG_SERIAL_8250
 static void __init
 sbc8560_early_serial_map(void)
 {
         struct uart_port uart_req;

         /* Setup serial port access */
         memset(&uart_req, 0, sizeof (uart_req));
 	uart_req.irq = MPC85xx_IRQ_EXT9;
 	uart_req.flags = STD_COM_FLAGS;
 	uart_req.uartclk = BASE_BAUD * 16;
         uart_req.iotype = SERIAL_IO_MEM;
         uart_req.mapbase = UARTA_ADDR;
         uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
 	uart_req.type = PORT_16650;

 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
         gen550_init(0, &uart_req);
 #endif

         if (early_serial_setup(&uart_req) != 0)
                 printk("Early serial init of port 0 failed\n");

         /* Assume early_serial_setup() doesn't modify uart_req */
 	uart_req.line = 1;
         uart_req.mapbase = UARTB_ADDR;
         uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE);
 	uart_req.irq = MPC85xx_IRQ_EXT10;

 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
         gen550_init(1, &uart_req);
 #endif

         if (early_serial_setup(&uart_req) != 0)
                 printk("Early serial init of port 1 failed\n");
 }
 #endif

 static const char *GFAR_PHY_25 = "phy0:25";
 static const char *GFAR_PHY_26 = "phy0:26";

 /* ************************************************************************
  *
  * Setup the architecture
  *
  */
 static void __init
 sbc8560_setup_arch(void)
 {
 	bd_t *binfo = (bd_t *) __res;
 	unsigned int freq;
 	struct gianfar_platform_data *pdata;
 	struct gianfar_mdio_data *mdata;

 	/* get the core frequency */
 	freq = binfo->bi_intfreq;

 	if (ppc_md.progress)
 		ppc_md.progress("sbc8560_setup_arch()", 0);

 	/* Set loops_per_jiffy to a half-way reasonable value,
 	   for use until calibrate_delay gets called. */
 	loops_per_jiffy = freq / HZ;

 #ifdef CONFIG_PCI
 	/* setup PCI host bridges */
 	mpc85xx_setup_hose();
 #endif
 #ifdef CONFIG_SERIAL_8250
 	sbc8560_early_serial_map();
 #endif
 #ifdef CONFIG_SERIAL_TEXT_DEBUG
 	/* Invalidate the entry we stole earlier the serial ports
 	 * should be properly mapped */
 	invalidate_tlbcam_entry(num_tlbcam_entries - 1);
 #endif

 	/* setup the board related info for the MDIO bus */
 	mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);

 	mdata->irq[25] = MPC85xx_IRQ_EXT6;
 	mdata->irq[26] = MPC85xx_IRQ_EXT7;
 	mdata->irq[31] = -1;
 	mdata->paddr += binfo->bi_immr_base;

 	/* setup the board related information for the enet controllers */
 	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
 	if (pdata) {
 		pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
 		pdata->bus_id = GFAR_PHY_25;
 		memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
 	}

 	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
 	if (pdata) {
 		pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
 		pdata->bus_id = GFAR_PHY_26;
 		memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
 	}

 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_start)
 		ROOT_DEV = Root_RAM0;
 	else
 #endif
 #ifdef  CONFIG_ROOT_NFS
 		ROOT_DEV = Root_NFS;
 #else
 		ROOT_DEV = Root_HDA1;
 #endif
 }

 /* ************************************************************************ */
 void __init
 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	      unsigned long r6, unsigned long r7)
 {
 	/* parse_bootinfo must always be called first */
 	parse_bootinfo(find_bootinfo());

 	/*
 	 * If we were passed in a board information, copy it into the
 	 * residual data area.
 	 */
 	if (r3) {
 		memcpy((void *) __res, (void *) (r3 + KERNELBASE),
 		       sizeof (bd_t));
 	}

 #ifdef CONFIG_SERIAL_TEXT_DEBUG
 	/* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
 	settlbcam(num_tlbcam_entries - 1, UARTA_ADDR,
 		  UARTA_ADDR, 0x1000, _PAGE_IO, 0);
 #endif

 #if defined(CONFIG_BLK_DEV_INITRD)
 	/*
 	 * If the init RAM disk has been configured in, and there's a valid
 	 * starting address for it, set it up.
 	 */
 	if (r4) {
 		initrd_start = r4 + KERNELBASE;
 		initrd_end = r5 + KERNELBASE;
 	}
 #endif				/* CONFIG_BLK_DEV_INITRD */

 	/* Copy the kernel command line arguments to a safe place. */

 	if (r6) {
 		*(char *) (r7 + KERNELBASE) = 0;
 		strcpy(cmd_line, (char *) (r6 + KERNELBASE));
 	}

 	identify_ppc_sys_by_id(mfspr(SPRN_SVR));

 	/* setup the PowerPC module struct */
 	ppc_md.setup_arch = sbc8560_setup_arch;
 	ppc_md.show_cpuinfo = sbc8560_show_cpuinfo;

 	ppc_md.init_IRQ = sbc8560_init_IRQ;
 	ppc_md.get_irq = openpic_get_irq;

 	ppc_md.restart = mpc85xx_restart;
 	ppc_md.power_off = mpc85xx_power_off;
 	ppc_md.halt = mpc85xx_halt;

 	ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;

 	ppc_md.time_init = NULL;
 	ppc_md.set_rtc_time = NULL;
 	ppc_md.get_rtc_time = NULL;
 	ppc_md.calibrate_decr = mpc85xx_calibrate_decr;

 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
 	ppc_md.progress = gen550_progress;
 #endif	/* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
 	ppc_md.early_serial_map = sbc8560_early_serial_map;
 #endif	/* CONFIG_SERIAL_8250 && CONFIG_KGDB */

 	if (ppc_md.progress)
 		ppc_md.progress("sbc8560_init(): exit", 0);
 }
	/*
	* arch/ppc/platforms/85xx/sbc8560.c
	*
	* Wind River SBC8560 board specific routines
	*
	* Maintainer: Kumar Gala
	*
	* Copyright 2004 Freescale Semiconductor Inc.
	*
	* 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.
	*/

	#include <linux/config.h>
	#include <linux/stddef.h>
	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/errno.h>
	#include <linux/reboot.h>
	#include <linux/pci.h>
	#include <linux/kdev_t.h>
	#include <linux/major.h>
	#include <linux/console.h>
	#include <linux/delay.h>
	#include <linux/seq_file.h>
	#include <linux/root_dev.h>
	#include <linux/serial.h>
	#include <linux/tty.h> /* for linux/serial_core.h */
	#include <linux/serial_core.h>
	#include <linux/initrd.h>
	#include <linux/module.h>
	#include <linux/fsl_devices.h>

	#include <asm/system.h>
	#include <asm/pgtable.h>
	#include <asm/page.h>
	#include <asm/atomic.h>
	#include <asm/time.h>
	#include <asm/io.h>
	#include <asm/machdep.h>
	#include <asm/open_pic.h>
	#include <asm/bootinfo.h>
	#include <asm/pci-bridge.h>
	#include <asm/mpc85xx.h>
	#include <asm/irq.h>
	#include <asm/immap_85xx.h>
	#include <asm/kgdb.h>
	#include <asm/ppc_sys.h>
	#include <mm/mmu_decl.h>

	#include <syslib/ppc85xx_common.h>
	#include <syslib/ppc85xx_setup.h>

	#ifdef CONFIG_SERIAL_8250
	static void __init
	sbc8560_early_serial_map(void)
	{
	struct uart_port uart_req;

	/* Setup serial port access */
	memset(&uart_req, 0, sizeof (uart_req));
	uart_req.irq = MPC85xx_IRQ_EXT9;
	uart_req.flags = STD_COM_FLAGS;
	uart_req.uartclk = BASE_BAUD * 16;
	uart_req.iotype = SERIAL_IO_MEM;
	uart_req.mapbase = UARTA_ADDR;
	uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
	uart_req.type = PORT_16650;

	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	gen550_init(0, &uart_req);
	#endif

	if (early_serial_setup(&uart_req) != 0)
	printk("Early serial init of port 0 failed\n");

	/* Assume early_serial_setup() doesn't modify uart_req */
	uart_req.line = 1;
	uart_req.mapbase = UARTB_ADDR;
	uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE);
	uart_req.irq = MPC85xx_IRQ_EXT10;

	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	gen550_init(1, &uart_req);
	#endif

	if (early_serial_setup(&uart_req) != 0)
	printk("Early serial init of port 1 failed\n");
	}
	#endif

	static const char *GFAR_PHY_25 = "phy0:25";
	static const char *GFAR_PHY_26 = "phy0:26";

	/* ************************************************************************
	*
	* Setup the architecture
	*
	*/
	static void __init
	sbc8560_setup_arch(void)
	{
	bd_t binfo = (bd_t ) __res;
	unsigned int freq;
	struct gianfar_platform_data *pdata;
	struct gianfar_mdio_data *mdata;

	/* get the core frequency */
	freq = binfo->bi_intfreq;

	if (ppc_md.progress)
	ppc_md.progress("sbc8560_setup_arch()", 0);

	/* Set loops_per_jiffy to a half-way reasonable value,
	for use until calibrate_delay gets called. */
	loops_per_jiffy = freq / HZ;

	#ifdef CONFIG_PCI
	/* setup PCI host bridges */
	mpc85xx_setup_hose();
	#endif
	#ifdef CONFIG_SERIAL_8250
	sbc8560_early_serial_map();
	#endif
	#ifdef CONFIG_SERIAL_TEXT_DEBUG
	/* Invalidate the entry we stole earlier the serial ports
	* should be properly mapped */
	invalidate_tlbcam_entry(num_tlbcam_entries - 1);
	#endif

	/* setup the board related info for the MDIO bus */
	mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);

	mdata->irq[25] = MPC85xx_IRQ_EXT6;
	mdata->irq[26] = MPC85xx_IRQ_EXT7;
	mdata->irq[31] = -1;
	mdata->paddr += binfo->bi_immr_base;

	/* setup the board related information for the enet controllers */
	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
	if (pdata) {
	pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
	pdata->bus_id = GFAR_PHY_25;
	memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
	}

	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
	if (pdata) {
	pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
	pdata->bus_id = GFAR_PHY_26;
	memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
	}

	#ifdef CONFIG_BLK_DEV_INITRD
	if (initrd_start)
	ROOT_DEV = Root_RAM0;
	else
	#endif
	#ifdef CONFIG_ROOT_NFS
	ROOT_DEV = Root_NFS;
	#else
	ROOT_DEV = Root_HDA1;
	#endif
	}

	/* ************************************************************************ */
	void __init
	platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
	unsigned long r6, unsigned long r7)
	{
	/* parse_bootinfo must always be called first */
	parse_bootinfo(find_bootinfo());

	/*
	* If we were passed in a board information, copy it into the
	* residual data area.
	*/
	if (r3) {
	memcpy((void ) __res, (void ) (r3 + KERNELBASE),
	sizeof (bd_t));
	}

	#ifdef CONFIG_SERIAL_TEXT_DEBUG
	/* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
	settlbcam(num_tlbcam_entries - 1, UARTA_ADDR,
	UARTA_ADDR, 0x1000, _PAGE_IO, 0);
	#endif

	#if defined(CONFIG_BLK_DEV_INITRD)
	/*
	* If the init RAM disk has been configured in, and there's a valid
	* starting address for it, set it up.
	*/
	if (r4) {
	initrd_start = r4 + KERNELBASE;
	initrd_end = r5 + KERNELBASE;
	}
	#endif /* CONFIG_BLK_DEV_INITRD */

	/* Copy the kernel command line arguments to a safe place. */

	if (r6) {
	(char ) (r7 + KERNELBASE) = 0;
	strcpy(cmd_line, (char *) (r6 + KERNELBASE));
	}

	identify_ppc_sys_by_id(mfspr(SPRN_SVR));

	/* setup the PowerPC module struct */
	ppc_md.setup_arch = sbc8560_setup_arch;
	ppc_md.show_cpuinfo = sbc8560_show_cpuinfo;

	ppc_md.init_IRQ = sbc8560_init_IRQ;
	ppc_md.get_irq = openpic_get_irq;

	ppc_md.restart = mpc85xx_restart;
	ppc_md.power_off = mpc85xx_power_off;
	ppc_md.halt = mpc85xx_halt;

	ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;

	ppc_md.time_init = NULL;
	ppc_md.set_rtc_time = NULL;
	ppc_md.get_rtc_time = NULL;
	ppc_md.calibrate_decr = mpc85xx_calibrate_decr;

	#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
	ppc_md.progress = gen550_progress;
	#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
	#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
	ppc_md.early_serial_map = sbc8560_early_serial_map;
	#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */

	if (ppc_md.progress)
	ppc_md.progress("sbc8560_init(): exit", 0);
	}