arch/ppc/platforms/4xx/ocotea.c - kernel/msm-4.9 - Gitiles

 /*
  * Ocotea board specific routines
  *
  * Matt Porter <mporter@kernel.crashing.org>
  *
  * Copyright 2003-2005 MontaVista Software 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/types.h>
 #include <linux/major.h>
 #include <linux/blkdev.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/ide.h>
 #include <linux/initrd.h>
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/tty.h>
 #include <linux/serial.h>
 #include <linux/serial_core.h>

 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/dma.h>
 #include <asm/io.h>
 #include <asm/machdep.h>
 #include <asm/ocp.h>
 #include <asm/pci-bridge.h>
 #include <asm/time.h>
 #include <asm/todc.h>
 #include <asm/bootinfo.h>
 #include <asm/ppc4xx_pic.h>
 #include <asm/ppcboot.h>
 #include <asm/tlbflush.h>

 #include <syslib/gen550.h>
 #include <syslib/ibm440gx_common.h>

 extern bd_t __res;

 static struct ibm44x_clocks clocks __initdata;

 static void __init
 ocotea_calibrate_decr(void)
 {
 	unsigned int freq;

 	if (mfspr(SPRN_CCR1) & CCR1_TCS)
 		freq = OCOTEA_TMR_CLK;
 	else
 		freq = clocks.cpu;

 	ibm44x_calibrate_decr(freq);
 }

 static int
 ocotea_show_cpuinfo(struct seq_file *m)
 {
 	seq_printf(m, "vendor\t\t: IBM\n");
 	seq_printf(m, "machine\t\t: PPC440GX EVB (Ocotea)\n");
 	ibm440gx_show_cpuinfo(m);
 	return 0;
 }

 static inline int
 ocotea_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
 {
 	static char pci_irq_table[][4] =
 	/*
 	 *	PCI IDSEL/INTPIN->INTLINE
 	 * 	   A   B   C   D
 	 */
 	{
 		{ 23, 23, 23, 23 },	/* IDSEL 1 - PCI Slot 0 */
 		{ 24, 24, 24, 24 },	/* IDSEL 2 - PCI Slot 1 */
 		{ 25, 25, 25, 25 },	/* IDSEL 3 - PCI Slot 2 */
 		{ 26, 26, 26, 26 },	/* IDSEL 4 - PCI Slot 3 */
 	};

 	const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4;
 	return PCI_IRQ_TABLE_LOOKUP;
 }

 static void __init ocotea_set_emacdata(void)
 {
 	struct ocp_def *def;
 	struct ocp_func_emac_data *emacdata;
 	int i;

 	/*
 	 * Note: Current rev. board only operates in Group 4a
 	 * mode, so we always set EMAC0-1 for SMII and EMAC2-3
 	 * for RGMII (though these could run in RTBI just the same).
 	 *
 	 * The FPGA reg 3 information isn't even suitable for
 	 * determining the phy_mode, so if the board becomes
 	 * usable in !4a, it will be necessary to parse an environment
 	 * variable from the firmware or similar to properly configure
 	 * the phy_map/phy_mode.
 	 */
 	/* Set phy_map, phy_mode, and mac_addr for each EMAC */
 	for (i=0; i<4; i++) {
 		def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, i);
 		emacdata = def->additions;
 		if (i < 2) {
 			emacdata->phy_map = 0x00000001;	/* Skip 0x00 */
 			emacdata->phy_mode = PHY_MODE_SMII;
 		}
 		else {
 			emacdata->phy_map = 0x0000ffff; /* Skip 0x00-0x0f */
 			emacdata->phy_mode = PHY_MODE_RGMII;
 		}
 		if (i == 0)
 			memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6);
 		else if (i == 1)
 			memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6);
 		else if (i == 2)
 			memcpy(emacdata->mac_addr, __res.bi_enet2addr, 6);
 		else if (i == 3)
 			memcpy(emacdata->mac_addr, __res.bi_enet3addr, 6);
 	}
 }

 #define PCIX_READW(offset) \
 	(readw(pcix_reg_base+offset))

 #define PCIX_WRITEW(value, offset) \
 	(writew(value, pcix_reg_base+offset))

 #define PCIX_WRITEL(value, offset) \
 	(writel(value, pcix_reg_base+offset))

 /*
  * FIXME: This is only here to "make it work".  This will move
  * to a ibm_pcix.c which will contain a generic IBM PCIX bridge
  * configuration library. -Matt
  */
 static void __init
 ocotea_setup_pcix(void)
 {
 	void *pcix_reg_base;

 	pcix_reg_base = ioremap64(PCIX0_REG_BASE, PCIX_REG_SIZE);

 	/* Enable PCIX0 I/O, Mem, and Busmaster cycles */
 	PCIX_WRITEW(PCIX_READW(PCIX0_COMMAND) | PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER, PCIX0_COMMAND);

 	/* Disable all windows */
 	PCIX_WRITEL(0, PCIX0_POM0SA);
 	PCIX_WRITEL(0, PCIX0_POM1SA);
 	PCIX_WRITEL(0, PCIX0_POM2SA);
 	PCIX_WRITEL(0, PCIX0_PIM0SA);
 	PCIX_WRITEL(0, PCIX0_PIM0SAH);
 	PCIX_WRITEL(0, PCIX0_PIM1SA);
 	PCIX_WRITEL(0, PCIX0_PIM2SA);
 	PCIX_WRITEL(0, PCIX0_PIM2SAH);

 	/* Setup 2GB PLB->PCI outbound mem window (3_8000_0000->0_8000_0000) */
 	PCIX_WRITEL(0x00000003, PCIX0_POM0LAH);
 	PCIX_WRITEL(0x80000000, PCIX0_POM0LAL);
 	PCIX_WRITEL(0x00000000, PCIX0_POM0PCIAH);
 	PCIX_WRITEL(0x80000000, PCIX0_POM0PCIAL);
 	PCIX_WRITEL(0x80000001, PCIX0_POM0SA);

 	/* Setup 2GB PCI->PLB inbound memory window at 0, enable MSIs */
 	PCIX_WRITEL(0x00000000, PCIX0_PIM0LAH);
 	PCIX_WRITEL(0x00000000, PCIX0_PIM0LAL);
 	PCIX_WRITEL(0xe0000007, PCIX0_PIM0SA);

 	eieio();
 }

 static void __init
 ocotea_setup_hose(void)
 {
 	struct pci_controller *hose;

 	/* Configure windows on the PCI-X host bridge */
 	ocotea_setup_pcix();

 	hose = pcibios_alloc_controller();

 	if (!hose)
 		return;

 	hose->first_busno = 0;
 	hose->last_busno = 0xff;

 	hose->pci_mem_offset = OCOTEA_PCI_MEM_OFFSET;

 	pci_init_resource(&hose->io_resource,
 			OCOTEA_PCI_LOWER_IO,
 			OCOTEA_PCI_UPPER_IO,
 			IORESOURCE_IO,
 			"PCI host bridge");

 	pci_init_resource(&hose->mem_resources[0],
 			OCOTEA_PCI_LOWER_MEM,
 			OCOTEA_PCI_UPPER_MEM,
 			IORESOURCE_MEM,
 			"PCI host bridge");

 	hose->io_space.start = OCOTEA_PCI_LOWER_IO;
 	hose->io_space.end = OCOTEA_PCI_UPPER_IO;
 	hose->mem_space.start = OCOTEA_PCI_LOWER_MEM;
 	hose->mem_space.end = OCOTEA_PCI_UPPER_MEM;
 	hose->io_base_virt = ioremap64(OCOTEA_PCI_IO_BASE, OCOTEA_PCI_IO_SIZE);
 	isa_io_base = (unsigned long) hose->io_base_virt;

 	setup_indirect_pci(hose,
 			OCOTEA_PCI_CFGA_PLB32,
 			OCOTEA_PCI_CFGD_PLB32);
 	hose->set_cfg_type = 1;

 	hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);

 	ppc_md.pci_swizzle = common_swizzle;
 	ppc_md.pci_map_irq = ocotea_map_irq;
 }


 TODC_ALLOC();

 static void __init
 ocotea_early_serial_map(void)
 {
 	struct uart_port port;

 	/* Setup ioremapped serial port access */
 	memset(&port, 0, sizeof(port));
 	port.membase = ioremap64(PPC440GX_UART0_ADDR, 8);
 	port.irq = UART0_INT;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
 	port.iotype = UPIO_MEM;
 	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;

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

 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	/* Configure debug serial access */
 	gen550_init(0, &port);

 	/* Purge TLB entry added in head_44x.S for early serial access */
 	_tlbie(UART0_IO_BASE);
 #endif

 	port.membase = ioremap64(PPC440GX_UART1_ADDR, 8);
 	port.irq = UART1_INT;
 	port.uartclk = clocks.uart1;
 	port.line = 1;

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

 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	/* Configure debug serial access */
 	gen550_init(1, &port);
 #endif
 }

 static void __init
 ocotea_setup_arch(void)
 {
 	ocotea_set_emacdata();

 	ibm440gx_tah_enable();

 	/*
 	 * Determine various clocks.
 	 * To be completely correct we should get SysClk
 	 * from FPGA, because it can be changed by on-board switches
 	 * --ebs
 	 */
 	ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
 	ocp_sys_info.opb_bus_freq = clocks.opb;

 	/* Setup TODC access */
 	TODC_INIT(TODC_TYPE_DS1743,
 			0,
 			0,
 			ioremap64(OCOTEA_RTC_ADDR, OCOTEA_RTC_SIZE),
 			8);

 	/* init to some ~sane value until calibrate_delay() runs */
         loops_per_jiffy = 50000000/HZ;

 	/* Setup PCI host bridge */
 	ocotea_setup_hose();

 #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

 	ocotea_early_serial_map();

 	/* Identify the system */
 	printk("IBM Ocotea port (MontaVista Software, Inc. <source@mvista.com>)\n");
 }

 static void __init ocotea_init(void)
 {
 	ibm440gx_l2c_setup(&clocks);
 }

 void __init platform_init(unsigned long r3, unsigned long r4,
 		unsigned long r5, unsigned long r6, unsigned long r7)
 {
 	ibm440gx_platform_init(r3, r4, r5, r6, r7);

 	ppc_md.setup_arch = ocotea_setup_arch;
 	ppc_md.show_cpuinfo = ocotea_show_cpuinfo;
 	ppc_md.get_irq = NULL;		/* Set in ppc4xx_pic_init() */

 	ppc_md.calibrate_decr = ocotea_calibrate_decr;
 	ppc_md.time_init = todc_time_init;
 	ppc_md.set_rtc_time = todc_set_rtc_time;
 	ppc_md.get_rtc_time = todc_get_rtc_time;

 	ppc_md.nvram_read_val = todc_direct_read_val;
 	ppc_md.nvram_write_val = todc_direct_write_val;
 #ifdef CONFIG_KGDB
 	ppc_md.early_serial_map = ocotea_early_serial_map;
 #endif
 	ppc_md.init = ocotea_init;
 }
	/*
	* Ocotea board specific routines
	*
	* Matt Porter <mporter@kernel.crashing.org>
	*
	* Copyright 2003-2005 MontaVista Software 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/types.h>
	#include <linux/major.h>
	#include <linux/blkdev.h>
	#include <linux/console.h>
	#include <linux/delay.h>
	#include <linux/ide.h>
	#include <linux/initrd.h>
	#include <linux/seq_file.h>
	#include <linux/root_dev.h>
	#include <linux/tty.h>
	#include <linux/serial.h>
	#include <linux/serial_core.h>

	#include <asm/system.h>
	#include <asm/pgtable.h>
	#include <asm/page.h>
	#include <asm/dma.h>
	#include <asm/io.h>
	#include <asm/machdep.h>
	#include <asm/ocp.h>
	#include <asm/pci-bridge.h>
	#include <asm/time.h>
	#include <asm/todc.h>
	#include <asm/bootinfo.h>
	#include <asm/ppc4xx_pic.h>
	#include <asm/ppcboot.h>
	#include <asm/tlbflush.h>

	#include <syslib/gen550.h>
	#include <syslib/ibm440gx_common.h>

	extern bd_t __res;

	static struct ibm44x_clocks clocks __initdata;

	static void __init
	ocotea_calibrate_decr(void)
	{
	unsigned int freq;

	if (mfspr(SPRN_CCR1) & CCR1_TCS)
	freq = OCOTEA_TMR_CLK;
	else
	freq = clocks.cpu;

	ibm44x_calibrate_decr(freq);
	}

	static int
	ocotea_show_cpuinfo(struct seq_file *m)
	{
	seq_printf(m, "vendor\t\t: IBM\n");
	seq_printf(m, "machine\t\t: PPC440GX EVB (Ocotea)\n");
	ibm440gx_show_cpuinfo(m);
	return 0;
	}

	static inline int
	ocotea_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
	{
	static char pci_irq_table[][4] =
	/*
	* PCI IDSEL/INTPIN->INTLINE
	* A B C D
	*/
	{
	{ 23, 23, 23, 23 }, /* IDSEL 1 - PCI Slot 0 */
	{ 24, 24, 24, 24 }, /* IDSEL 2 - PCI Slot 1 */
	{ 25, 25, 25, 25 }, /* IDSEL 3 - PCI Slot 2 */
	{ 26, 26, 26, 26 }, /* IDSEL 4 - PCI Slot 3 */
	};

	const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4;
	return PCI_IRQ_TABLE_LOOKUP;
	}

	static void __init ocotea_set_emacdata(void)
	{
	struct ocp_def *def;
	struct ocp_func_emac_data *emacdata;
	int i;

	/*
	* Note: Current rev. board only operates in Group 4a
	* mode, so we always set EMAC0-1 for SMII and EMAC2-3
	* for RGMII (though these could run in RTBI just the same).
	*
	* The FPGA reg 3 information isn't even suitable for
	* determining the phy_mode, so if the board becomes
	* usable in !4a, it will be necessary to parse an environment
	* variable from the firmware or similar to properly configure
	* the phy_map/phy_mode.
	*/
	/* Set phy_map, phy_mode, and mac_addr for each EMAC */
	for (i=0; i<4; i++) {
	def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, i);
	emacdata = def->additions;
	if (i < 2) {
	emacdata->phy_map = 0x00000001; /* Skip 0x00 */
	emacdata->phy_mode = PHY_MODE_SMII;
	}
	else {
	emacdata->phy_map = 0x0000ffff; /* Skip 0x00-0x0f */
	emacdata->phy_mode = PHY_MODE_RGMII;
	}
	if (i == 0)
	memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6);
	else if (i == 1)
	memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6);
	else if (i == 2)
	memcpy(emacdata->mac_addr, __res.bi_enet2addr, 6);
	else if (i == 3)
	memcpy(emacdata->mac_addr, __res.bi_enet3addr, 6);
	}
	}

	#define PCIX_READW(offset) \
	(readw(pcix_reg_base+offset))

	#define PCIX_WRITEW(value, offset) \
	(writew(value, pcix_reg_base+offset))

	#define PCIX_WRITEL(value, offset) \
	(writel(value, pcix_reg_base+offset))

	/*
	* FIXME: This is only here to "make it work". This will move
	* to a ibm_pcix.c which will contain a generic IBM PCIX bridge
	* configuration library. -Matt
	*/
	static void __init
	ocotea_setup_pcix(void)
	{
	void *pcix_reg_base;

	pcix_reg_base = ioremap64(PCIX0_REG_BASE, PCIX_REG_SIZE);

	/* Enable PCIX0 I/O, Mem, and Busmaster cycles */
	PCIX_WRITEW(PCIX_READW(PCIX0_COMMAND) \| PCI_COMMAND_IO \| PCI_COMMAND_MEMORY \| PCI_COMMAND_MASTER, PCIX0_COMMAND);

	/* Disable all windows */
	PCIX_WRITEL(0, PCIX0_POM0SA);
	PCIX_WRITEL(0, PCIX0_POM1SA);
	PCIX_WRITEL(0, PCIX0_POM2SA);
	PCIX_WRITEL(0, PCIX0_PIM0SA);
	PCIX_WRITEL(0, PCIX0_PIM0SAH);
	PCIX_WRITEL(0, PCIX0_PIM1SA);
	PCIX_WRITEL(0, PCIX0_PIM2SA);
	PCIX_WRITEL(0, PCIX0_PIM2SAH);

	/* Setup 2GB PLB->PCI outbound mem window (3_8000_0000->0_8000_0000) */
	PCIX_WRITEL(0x00000003, PCIX0_POM0LAH);
	PCIX_WRITEL(0x80000000, PCIX0_POM0LAL);
	PCIX_WRITEL(0x00000000, PCIX0_POM0PCIAH);
	PCIX_WRITEL(0x80000000, PCIX0_POM0PCIAL);
	PCIX_WRITEL(0x80000001, PCIX0_POM0SA);

	/* Setup 2GB PCI->PLB inbound memory window at 0, enable MSIs */
	PCIX_WRITEL(0x00000000, PCIX0_PIM0LAH);
	PCIX_WRITEL(0x00000000, PCIX0_PIM0LAL);
	PCIX_WRITEL(0xe0000007, PCIX0_PIM0SA);

	eieio();
	}

	static void __init
	ocotea_setup_hose(void)
	{
	struct pci_controller *hose;

	/* Configure windows on the PCI-X host bridge */
	ocotea_setup_pcix();

	hose = pcibios_alloc_controller();

	if (!hose)
	return;

	hose->first_busno = 0;
	hose->last_busno = 0xff;

	hose->pci_mem_offset = OCOTEA_PCI_MEM_OFFSET;

	pci_init_resource(&hose->io_resource,
	OCOTEA_PCI_LOWER_IO,
	OCOTEA_PCI_UPPER_IO,
	IORESOURCE_IO,
	"PCI host bridge");

	pci_init_resource(&hose->mem_resources[0],
	OCOTEA_PCI_LOWER_MEM,
	OCOTEA_PCI_UPPER_MEM,
	IORESOURCE_MEM,
	"PCI host bridge");

	hose->io_space.start = OCOTEA_PCI_LOWER_IO;
	hose->io_space.end = OCOTEA_PCI_UPPER_IO;
	hose->mem_space.start = OCOTEA_PCI_LOWER_MEM;
	hose->mem_space.end = OCOTEA_PCI_UPPER_MEM;
	hose->io_base_virt = ioremap64(OCOTEA_PCI_IO_BASE, OCOTEA_PCI_IO_SIZE);
	isa_io_base = (unsigned long) hose->io_base_virt;

	setup_indirect_pci(hose,
	OCOTEA_PCI_CFGA_PLB32,
	OCOTEA_PCI_CFGD_PLB32);
	hose->set_cfg_type = 1;

	hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);

	ppc_md.pci_swizzle = common_swizzle;
	ppc_md.pci_map_irq = ocotea_map_irq;
	}


	TODC_ALLOC();

	static void __init
	ocotea_early_serial_map(void)
	{
	struct uart_port port;

	/* Setup ioremapped serial port access */
	memset(&port, 0, sizeof(port));
	port.membase = ioremap64(PPC440GX_UART0_ADDR, 8);
	port.irq = UART0_INT;
	port.uartclk = clocks.uart0;
	port.regshift = 0;
	port.iotype = UPIO_MEM;
	port.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST;
	port.line = 0;

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

	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	/* Configure debug serial access */
	gen550_init(0, &port);

	/* Purge TLB entry added in head_44x.S for early serial access */
	_tlbie(UART0_IO_BASE);
	#endif

	port.membase = ioremap64(PPC440GX_UART1_ADDR, 8);
	port.irq = UART1_INT;
	port.uartclk = clocks.uart1;
	port.line = 1;

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

	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	/* Configure debug serial access */
	gen550_init(1, &port);
	#endif
	}

	static void __init
	ocotea_setup_arch(void)
	{
	ocotea_set_emacdata();

	ibm440gx_tah_enable();

	/*
	* Determine various clocks.
	* To be completely correct we should get SysClk
	* from FPGA, because it can be changed by on-board switches
	* --ebs
	*/
	ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
	ocp_sys_info.opb_bus_freq = clocks.opb;

	/* Setup TODC access */
	TODC_INIT(TODC_TYPE_DS1743,
	0,
	0,
	ioremap64(OCOTEA_RTC_ADDR, OCOTEA_RTC_SIZE),
	8);

	/* init to some ~sane value until calibrate_delay() runs */
	loops_per_jiffy = 50000000/HZ;

	/* Setup PCI host bridge */
	ocotea_setup_hose();

	#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

	ocotea_early_serial_map();

	/* Identify the system */
	printk("IBM Ocotea port (MontaVista Software, Inc. <source@mvista.com>)\n");
	}

	static void __init ocotea_init(void)
	{
	ibm440gx_l2c_setup(&clocks);
	}

	void __init platform_init(unsigned long r3, unsigned long r4,
	unsigned long r5, unsigned long r6, unsigned long r7)
	{
	ibm440gx_platform_init(r3, r4, r5, r6, r7);

	ppc_md.setup_arch = ocotea_setup_arch;
	ppc_md.show_cpuinfo = ocotea_show_cpuinfo;
	ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */

	ppc_md.calibrate_decr = ocotea_calibrate_decr;
	ppc_md.time_init = todc_time_init;
	ppc_md.set_rtc_time = todc_set_rtc_time;
	ppc_md.get_rtc_time = todc_get_rtc_time;

	ppc_md.nvram_read_val = todc_direct_read_val;
	ppc_md.nvram_write_val = todc_direct_write_val;
	#ifdef CONFIG_KGDB
	ppc_md.early_serial_map = ocotea_early_serial_map;
	#endif
	ppc_md.init = ocotea_init;
	}