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/* * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery) * * Author: Dale Farnsworth <dale@farnsworth.org> * * 2007 (c) MontaVista, Software, Inc.  This file is licensed under * the terms of the GNU General Public License version 2.  This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #include <linux/stddef.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/console.h>#include <linux/mv643xx.h>#include <linux/platform_device.h>#include <linux/of_platform.h>#include <linux/of_net.h>#include <linux/dma-mapping.h> #include <asm/prom.h> /* These functions provide the necessary setup for the mv64x60 drivers. */ static const struct of_device_id of_mv64x60_devices[] __initconst = {	{ .compatible = "marvell,mv64306-devctrl", },	{}}; /* * Create MPSC platform devices */static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np){	struct platform_device *pdev;	struct resource r[2];	struct mpsc_shared_pdata pdata;	const phandle *ph;	struct device_node *mpscrouting, *mpscintr;	int err; 	ph = of_get_property(np, "mpscrouting", NULL);	mpscrouting = of_find_node_by_phandle(*ph);	if (!mpscrouting)		return -ENODEV; 	err = of_address_to_resource(mpscrouting, 0, &r[0]);	of_node_put(mpscrouting);	if (err)		return err; 	ph = of_get_property(np, "mpscintr", NULL);	mpscintr = of_find_node_by_phandle(*ph);	if (!mpscintr)		return -ENODEV; 	err = of_address_to_resource(mpscintr, 0, &r[1]);	of_node_put(mpscintr);	if (err)		return err; 	memset(&pdata, 0, sizeof(pdata)); 	pdev = platform_device_alloc(MPSC_SHARED_NAME, 0);	if (!pdev)		return -ENOMEM; 	err = platform_device_add_resources(pdev, r, 2);	if (err)		goto error; 	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));	if (err)		goto error; 	err = platform_device_add(pdev);	if (err)		goto error; 	return 0; error:	platform_device_put(pdev);	return err;}  static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id){	struct resource r[5];	struct mpsc_pdata pdata;	struct platform_device *pdev;	const unsigned int *prop;	const phandle *ph;	struct device_node *sdma, *brg;	int err;	int port_number; 	/* only register the shared platform device the first time through */	if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np)))		return err; 	memset(r, 0, sizeof(r)); 	err = of_address_to_resource(np, 0, &r[0]);	if (err)		return err; 	of_irq_to_resource(np, 0, &r[4]); 	ph = of_get_property(np, "sdma", NULL);	sdma = of_find_node_by_phandle(*ph);	if (!sdma)		return -ENODEV; 	of_irq_to_resource(sdma, 0, &r[3]);	err = of_address_to_resource(sdma, 0, &r[1]);	of_node_put(sdma);	if (err)		return err; 	ph = of_get_property(np, "brg", NULL);	brg = of_find_node_by_phandle(*ph);	if (!brg)		return -ENODEV; 	err = of_address_to_resource(brg, 0, &r[2]);	of_node_put(brg);	if (err)		return err; 	prop = of_get_property(np, "cell-index", NULL);	if (!prop)		return -ENODEV;	port_number = *(int *)prop; 	memset(&pdata, 0, sizeof(pdata)); 	pdata.cache_mgmt = 1; /* All current revs need this set */ 	pdata.max_idle = 40; /* default */	prop = of_get_property(np, "max_idle", NULL);	if (prop)		pdata.max_idle = *prop; 	prop = of_get_property(brg, "current-speed", NULL);	if (prop)		pdata.default_baud = *prop; 	/* Default is 8 bits, no parity, no flow control */	pdata.default_bits = 8;	pdata.default_parity = 'n';	pdata.default_flow = 'n'; 	prop = of_get_property(np, "chr_1", NULL);	if (prop)		pdata.chr_1_val = *prop; 	prop = of_get_property(np, "chr_2", NULL);	if (prop)		pdata.chr_2_val = *prop; 	prop = of_get_property(np, "chr_10", NULL);	if (prop)		pdata.chr_10_val = *prop; 	prop = of_get_property(np, "mpcr", NULL);	if (prop)		pdata.mpcr_val = *prop; 	prop = of_get_property(brg, "bcr", NULL);	if (prop)		pdata.bcr_val = *prop; 	pdata.brg_can_tune = 1; /* All current revs need this set */ 	prop = of_get_property(brg, "clock-src", NULL);	if (prop)		pdata.brg_clk_src = *prop; 	prop = of_get_property(brg, "clock-frequency", NULL);	if (prop)		pdata.brg_clk_freq = *prop; 	pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number);	if (!pdev)		return -ENOMEM;	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); 	err = platform_device_add_resources(pdev, r, 5);	if (err)		goto error; 	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));	if (err)		goto error; 	err = platform_device_add(pdev);	if (err)		goto error; 	return 0; error:	platform_device_put(pdev);	return err;} /* * Create mv64x60_eth platform devices */static struct platform_device * __init mv64x60_eth_register_shared_pdev(						struct device_node *np, int id){	struct platform_device *pdev;	struct resource r[2];	int err; 	err = of_address_to_resource(np, 0, &r[0]);	if (err)		return ERR_PTR(err); 	/* register an orion mdio bus driver */	r[1].start = r[0].start + 0x4;	r[1].end = r[0].start + 0x84 - 1;	r[1].flags = IORESOURCE_MEM; 	if (id == 0) {		pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1);		if (IS_ERR(pdev))			return pdev;	} 	pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id,					       &r[0], 1); 	return pdev;} static int __init mv64x60_eth_device_setup(struct device_node *np, int id,					   struct platform_device *shared_pdev){	struct resource r[1];	struct mv643xx_eth_platform_data pdata;	struct platform_device *pdev;	struct device_node *phy;	const u8 *mac_addr;	const int *prop;	const phandle *ph;	int err; 	memset(r, 0, sizeof(r));	of_irq_to_resource(np, 0, &r[0]); 	memset(&pdata, 0, sizeof(pdata)); 	pdata.shared = shared_pdev; 	prop = of_get_property(np, "reg", NULL);	if (!prop)		return -ENODEV;	pdata.port_number = *prop; 	mac_addr = of_get_mac_address(np);	if (mac_addr)		memcpy(pdata.mac_addr, mac_addr, 6); 	prop = of_get_property(np, "speed", NULL);	if (prop)		pdata.speed = *prop; 	prop = of_get_property(np, "tx_queue_size", NULL);	if (prop)		pdata.tx_queue_size = *prop; 	prop = of_get_property(np, "rx_queue_size", NULL);	if (prop)		pdata.rx_queue_size = *prop; 	prop = of_get_property(np, "tx_sram_addr", NULL);	if (prop)		pdata.tx_sram_addr = *prop; 	prop = of_get_property(np, "tx_sram_size", NULL);	if (prop)		pdata.tx_sram_size = *prop; 	prop = of_get_property(np, "rx_sram_addr", NULL);	if (prop)		pdata.rx_sram_addr = *prop; 	prop = of_get_property(np, "rx_sram_size", NULL);	if (prop)		pdata.rx_sram_size = *prop; 	ph = of_get_property(np, "phy", NULL);	if (!ph)		return -ENODEV; 	phy = of_find_node_by_phandle(*ph);	if (phy == NULL)		return -ENODEV; 	prop = of_get_property(phy, "reg", NULL);	if (prop)		pdata.phy_addr = MV643XX_ETH_PHY_ADDR(*prop); 	of_node_put(phy); 	pdev = platform_device_alloc(MV643XX_ETH_NAME, id);	if (!pdev)		return -ENOMEM; 	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);	err = platform_device_add_resources(pdev, r, 1);	if (err)		goto error; 	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));	if (err)		goto error; 	err = platform_device_add(pdev);	if (err)		goto error; 	return 0; error:	platform_device_put(pdev);	return err;} /* * Create mv64x60_i2c platform devices */static int __init mv64x60_i2c_device_setup(struct device_node *np, int id){	struct resource r[2];	struct platform_device *pdev;	struct mv64xxx_i2c_pdata pdata;	const unsigned int *prop;	int err; 	memset(r, 0, sizeof(r)); 	err = of_address_to_resource(np, 0, &r[0]);	if (err)		return err; 	of_irq_to_resource(np, 0, &r[1]); 	memset(&pdata, 0, sizeof(pdata)); 	pdata.freq_m = 8;	/* default */	prop = of_get_property(np, "freq_m", NULL);	if (prop)		pdata.freq_m = *prop; 	pdata.freq_n = 3;	/* default */	prop = of_get_property(np, "freq_n", NULL);	if (prop)		pdata.freq_n = *prop; 	pdata.timeout = 1000;				/* default: 1 second */ 	pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);	if (!pdev)		return -ENOMEM; 	err = platform_device_add_resources(pdev, r, 2);	if (err)		goto error; 	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));	if (err)		goto error; 	err = platform_device_add(pdev);	if (err)		goto error; 	return 0; error:	platform_device_put(pdev);	return err;} /* * Create mv64x60_wdt platform devices */static int __init mv64x60_wdt_device_setup(struct device_node *np, int id){	struct resource r;	struct platform_device *pdev;	struct mv64x60_wdt_pdata pdata;	const unsigned int *prop;	int err; 	err = of_address_to_resource(np, 0, &r);	if (err)		return err; 	memset(&pdata, 0, sizeof(pdata)); 	pdata.timeout = 10;			/* Default: 10 seconds */ 	np = of_get_parent(np);	if (!np)		return -ENODEV; 	prop = of_get_property(np, "clock-frequency", NULL);	of_node_put(np);	if (!prop)		return -ENODEV;	pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */ 	pdev = platform_device_alloc(MV64x60_WDT_NAME, id);	if (!pdev)		return -ENOMEM; 	err = platform_device_add_resources(pdev, &r, 1);	if (err)		goto error; 	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));	if (err)		goto error; 	err = platform_device_add(pdev);	if (err)		goto error; 	return 0; error:	platform_device_put(pdev);	return err;} static int __init mv64x60_device_setup(void){	struct device_node *np, *np2;	struct platform_device *pdev;	int id, id2;	int err; 	id = 0;	for_each_compatible_node(np, NULL, "marvell,mv64360-mpsc") {		err = mv64x60_mpsc_device_setup(np, id++);		if (err)			printk(KERN_ERR "Failed to initialize MV64x60 "					"serial device %s: error %d.\n",					np->full_name, err);	} 	id = 0;	id2 = 0;	for_each_compatible_node(np, NULL, "marvell,mv64360-eth-group") {		pdev = mv64x60_eth_register_shared_pdev(np, id++);		if (IS_ERR(pdev)) {			err = PTR_ERR(pdev);			printk(KERN_ERR "Failed to initialize MV64x60 "					"network block %s: error %d.\n",					np->full_name, err);			continue;		}		for_each_child_of_node(np, np2) {			if (!of_device_is_compatible(np2,					"marvell,mv64360-eth"))				continue;			err = mv64x60_eth_device_setup(np2, id2++, pdev);			if (err)				printk(KERN_ERR "Failed to initialize "						"MV64x60 network device %s: "						"error %d.\n",						np2->full_name, err);		}	} 	id = 0;	for_each_compatible_node(np, "i2c", "marvell,mv64360-i2c") {		err = mv64x60_i2c_device_setup(np, id++);		if (err)			printk(KERN_ERR "Failed to initialize MV64x60 I2C "					"bus %s: error %d.\n",					np->full_name, err);	} 	/* support up to one watchdog timer */	np = of_find_compatible_node(np, NULL, "marvell,mv64360-wdt");	if (np) {		if ((err = mv64x60_wdt_device_setup(np, id)))			printk(KERN_ERR "Failed to initialize MV64x60 "					"Watchdog %s: error %d.\n",					np->full_name, err);		of_node_put(np);	}

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