[net-next-2.6.git] / arch / ppc / platforms / 85xx / sbc8560.c

/*
 * 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);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* arch/ppc/platforms/85xx/sbc8560.c
	3	*
	4	* Wind River SBC8560 board specific routines
	5	*
4c8d3d99	6	* Maintainer: Kumar Gala
1da177e4 LT	7	*
	8	* Copyright 2004 Freescale Semiconductor Inc.
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*/
	15
	16	#include <linux/config.h>
	17	#include <linux/stddef.h>
	18	#include <linux/kernel.h>
	19	#include <linux/init.h>
	20	#include <linux/errno.h>
	21	#include <linux/reboot.h>
	22	#include <linux/pci.h>
	23	#include <linux/kdev_t.h>
	24	#include <linux/major.h>
	25	#include <linux/console.h>
	26	#include <linux/delay.h>
1da177e4 LT	27	#include <linux/seq_file.h>
	28	#include <linux/root_dev.h>
	29	#include <linux/serial.h>
	30	#include <linux/tty.h> /* for linux/serial_core.h */
	31	#include <linux/serial_core.h>
	32	#include <linux/initrd.h>
	33	#include <linux/module.h>
	34	#include <linux/fsl_devices.h>
	35
	36	#include <asm/system.h>
	37	#include <asm/pgtable.h>
	38	#include <asm/page.h>
	39	#include <asm/atomic.h>
	40	#include <asm/time.h>
	41	#include <asm/io.h>
	42	#include <asm/machdep.h>
1da177e4 LT	43	#include <asm/open_pic.h>
	44	#include <asm/bootinfo.h>
	45	#include <asm/pci-bridge.h>
	46	#include <asm/mpc85xx.h>
	47	#include <asm/irq.h>
	48	#include <asm/immap_85xx.h>
	49	#include <asm/kgdb.h>
	50	#include <asm/ppc_sys.h>
	51	#include <mm/mmu_decl.h>
	52
	53	#include <syslib/ppc85xx_common.h>
	54	#include <syslib/ppc85xx_setup.h>
	55
	56	#ifdef CONFIG_SERIAL_8250
	57	static void __init
	58	sbc8560_early_serial_map(void)
	59	{
	60	struct uart_port uart_req;
	61
	62	/* Setup serial port access */
	63	memset(&uart_req, 0, sizeof (uart_req));
	64	uart_req.irq = MPC85xx_IRQ_EXT9;
	65	uart_req.flags = STD_COM_FLAGS;
	66	uart_req.uartclk = BASE_BAUD * 16;
	67	uart_req.iotype = SERIAL_IO_MEM;
	68	uart_req.mapbase = UARTA_ADDR;
	69	uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
	70	uart_req.type = PORT_16650;
	71
	72	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	73	gen550_init(0, &uart_req);
	74	#endif
	75
	76	if (early_serial_setup(&uart_req) != 0)
	77	printk("Early serial init of port 0 failed\n");
	78
	79	/* Assume early_serial_setup() doesn't modify uart_req */
	80	uart_req.line = 1;
	81	uart_req.mapbase = UARTB_ADDR;
	82	uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE);
	83	uart_req.irq = MPC85xx_IRQ_EXT10;
	84
	85	#if defined(CONFIG_SERIAL_TEXT_DEBUG) \|\| defined(CONFIG_KGDB)
	86	gen550_init(1, &uart_req);
	87	#endif
	88
	89	if (early_serial_setup(&uart_req) != 0)
	90	printk("Early serial init of port 1 failed\n");
	91	}
	92	#endif
	93
b37665e0 AF	94	static const char *GFAR_PHY_25 = "phy0:25";
	95	static const char *GFAR_PHY_26 = "phy0:26";
	96
1da177e4 LT	97	/* ************************************************************************
	98	*
	99	* Setup the architecture
	100	*
	101	*/
	102	static void __init
	103	sbc8560_setup_arch(void)
	104	{
	105	bd_t binfo = (bd_t ) __res;
	106	unsigned int freq;
	107	struct gianfar_platform_data *pdata;
b37665e0	108	struct gianfar_mdio_data *mdata;
1da177e4 LT	109
	110	/* get the core frequency */
	111	freq = binfo->bi_intfreq;
	112
	113	if (ppc_md.progress)
	114	ppc_md.progress("sbc8560_setup_arch()", 0);
	115
	116	/* Set loops_per_jiffy to a half-way reasonable value,
	117	for use until calibrate_delay gets called. */
	118	loops_per_jiffy = freq / HZ;
	119
	120	#ifdef CONFIG_PCI
	121	/* setup PCI host bridges */
	122	mpc85xx_setup_hose();
	123	#endif
	124	#ifdef CONFIG_SERIAL_8250
	125	sbc8560_early_serial_map();
	126	#endif
	127	#ifdef CONFIG_SERIAL_TEXT_DEBUG
	128	/* Invalidate the entry we stole earlier the serial ports
	129	* should be properly mapped */
5be061ee	130	invalidate_tlbcam_entry(num_tlbcam_entries - 1);
1da177e4 LT	131	#endif
1da177e4 LT	132
b37665e0 AF	133	/* setup the board related info for the MDIO bus */
	134	mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
	135
	136	mdata->irq[25] = MPC85xx_IRQ_EXT6;
	137	mdata->irq[26] = MPC85xx_IRQ_EXT7;
	138	mdata->irq[31] = -1;
	139	mdata->paddr += binfo->bi_immr_base;
	140
1da177e4 LT	141	/* setup the board related information for the enet controllers */
1da177e4 LT	142	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
62aa751d KG	143	if (pdata) {
62aa751d KG	144	pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
b37665e0	145	pdata->bus_id = GFAR_PHY_25;
62aa751d KG	146	memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
62aa751d KG	147	}
1da177e4 LT	148
1da177e4 LT	149	pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
62aa751d KG	150	if (pdata) {
62aa751d KG	151	pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
b37665e0	152	pdata->bus_id = GFAR_PHY_26;
62aa751d KG	153	memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
62aa751d KG	154	}
1da177e4 LT	155
	156	#ifdef CONFIG_BLK_DEV_INITRD
	157	if (initrd_start)
	158	ROOT_DEV = Root_RAM0;
	159	else
	160	#endif
	161	#ifdef CONFIG_ROOT_NFS
	162	ROOT_DEV = Root_NFS;
	163	#else
	164	ROOT_DEV = Root_HDA1;
	165	#endif
	166	}
	167
	168	/* ************************************************************************ */
	169	void __init
	170	platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
	171	unsigned long r6, unsigned long r7)
	172	{
	173	/* parse_bootinfo must always be called first */
	174	parse_bootinfo(find_bootinfo());
	175
	176	/*
	177	* If we were passed in a board information, copy it into the
	178	* residual data area.
	179	*/
	180	if (r3) {
	181	memcpy((void ) __res, (void ) (r3 + KERNELBASE),
	182	sizeof (bd_t));
	183	}
	184
	185	#ifdef CONFIG_SERIAL_TEXT_DEBUG
	186	/* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
5be061ee	187	settlbcam(num_tlbcam_entries - 1, UARTA_ADDR,
1da177e4 LT	188	UARTA_ADDR, 0x1000, _PAGE_IO, 0);
	189	#endif
	190
	191	#if defined(CONFIG_BLK_DEV_INITRD)
	192	/*
	193	* If the init RAM disk has been configured in, and there's a valid
	194	* starting address for it, set it up.
	195	*/
	196	if (r4) {
	197	initrd_start = r4 + KERNELBASE;
	198	initrd_end = r5 + KERNELBASE;
	199	}
	200	#endif /* CONFIG_BLK_DEV_INITRD */
	201
	202	/* Copy the kernel command line arguments to a safe place. */
	203
	204	if (r6) {
	205	(char ) (r7 + KERNELBASE) = 0;
	206	strcpy(cmd_line, (char *) (r6 + KERNELBASE));
	207	}
	208
	209	identify_ppc_sys_by_id(mfspr(SPRN_SVR));
	210
	211	/* setup the PowerPC module struct */
	212	ppc_md.setup_arch = sbc8560_setup_arch;
	213	ppc_md.show_cpuinfo = sbc8560_show_cpuinfo;
	214
	215	ppc_md.init_IRQ = sbc8560_init_IRQ;
	216	ppc_md.get_irq = openpic_get_irq;
	217
	218	ppc_md.restart = mpc85xx_restart;
	219	ppc_md.power_off = mpc85xx_power_off;
	220	ppc_md.halt = mpc85xx_halt;
	221
	222	ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
	223
	224	ppc_md.time_init = NULL;
	225	ppc_md.set_rtc_time = NULL;
	226	ppc_md.get_rtc_time = NULL;
	227	ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
	228
	229	#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
	230	ppc_md.progress = gen550_progress;
	231	#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
252fcaed KG	232	#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
	233	ppc_md.early_serial_map = sbc8560_early_serial_map;
	234	#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */
1da177e4 LT	235
	236	if (ppc_md.progress)
	237	ppc_md.progress("sbc8560_init(): exit", 0);
	238	}