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fsl_soc.c

/*
 * FSL SoC setup code
 *
 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
 *
 * 2006 (c) MontaVista Software, Inc.
 * Vitaly Bordug <vbordug@ru.mvista.com>
 *
 * 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/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h>
#include <linux/phy.h>
#include <linux/spi/spi.h>
#include <linux/fsl_devices.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>

#include <asm/system.h>
#include <asm/atomic.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/time.h>
#include <asm/prom.h>
#include <sysdev/fsl_soc.h>
#include <mm/mmu_decl.h>
#include <asm/cpm2.h>

extern void init_fcc_ioports(struct fs_platform_info*);
extern void init_fec_ioports(struct fs_platform_info*);
extern void init_smc_ioports(struct fs_uart_platform_info*);
static phys_addr_t immrbase = -1;

phys_addr_t get_immrbase(void)
{
      struct device_node *soc;

      if (immrbase != -1)
            return immrbase;

      soc = of_find_node_by_type(NULL, "soc");
      if (soc) {
            int size;
            const void *prop = of_get_property(soc, "reg", &size);

            if (prop)
                  immrbase = of_translate_address(soc, prop);
            of_node_put(soc);
      }

      return immrbase;
}

EXPORT_SYMBOL(get_immrbase);

#if defined(CONFIG_CPM2) || defined(CONFIG_8xx)

static u32 brgfreq = -1;

u32 get_brgfreq(void)
{
      struct device_node *node;
      const unsigned int *prop;
      int size;

      if (brgfreq != -1)
            return brgfreq;

      node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
      if (node) {
            prop = of_get_property(node, "clock-frequency", &size);
            if (prop && size == 4)
                  brgfreq = *prop;

            of_node_put(node);
            return brgfreq;
      }

      /* Legacy device binding -- will go away when no users are left. */
      node = of_find_node_by_type(NULL, "cpm");
      if (node) {
            prop = of_get_property(node, "brg-frequency", &size);
            if (prop && size == 4)
                  brgfreq = *prop;

            of_node_put(node);
      }

      return brgfreq;
}

EXPORT_SYMBOL(get_brgfreq);

static u32 fs_baudrate = -1;

u32 get_baudrate(void)
{
      struct device_node *node;

      if (fs_baudrate != -1)
            return fs_baudrate;

      node = of_find_node_by_type(NULL, "serial");
      if (node) {
            int size;
            const unsigned int *prop = of_get_property(node,
                        "current-speed", &size);

            if (prop)
                  fs_baudrate = *prop;
            of_node_put(node);
      }

      return fs_baudrate;
}

EXPORT_SYMBOL(get_baudrate);
#endif /* CONFIG_CPM2 */

static int __init gfar_mdio_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *mdio_dev;
      struct resource res;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
           i++) {
            int k;
            struct device_node *child = NULL;
            struct gianfar_mdio_data mdio_data;

            memset(&res, 0, sizeof(res));
            memset(&mdio_data, 0, sizeof(mdio_data));

            ret = of_address_to_resource(np, 0, &res);
            if (ret)
                  goto err;

            mdio_dev =
                platform_device_register_simple("fsl-gianfar_mdio",
                                        res.start, &res, 1);
            if (IS_ERR(mdio_dev)) {
                  ret = PTR_ERR(mdio_dev);
                  goto err;
            }

            for (k = 0; k < 32; k++)
                  mdio_data.irq[k] = PHY_POLL;

            while ((child = of_get_next_child(np, child)) != NULL) {
                  int irq = irq_of_parse_and_map(child, 0);
                  if (irq != NO_IRQ) {
                        const u32 *id = of_get_property(child,
                                          "reg", NULL);
                        mdio_data.irq[*id] = irq;
                  }
            }

            ret =
                platform_device_add_data(mdio_dev, &mdio_data,
                                   sizeof(struct gianfar_mdio_data));
            if (ret)
                  goto unreg;
      }

      return 0;

unreg:
      platform_device_unregister(mdio_dev);
err:
      return ret;
}

arch_initcall(gfar_mdio_of_init);

static const char *gfar_tx_intr = "tx";
static const char *gfar_rx_intr = "rx";
static const char *gfar_err_intr = "error";


static int __init gfar_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *gfar_dev;
      struct resource res;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
           i++) {
            struct resource r[4];
            struct device_node *phy, *mdio;
            struct gianfar_platform_data gfar_data;
            const unsigned int *id;
            const char *model;
            const char *ctype;
            const void *mac_addr;
            const phandle *ph;
            int n_res = 2;

            memset(r, 0, sizeof(r));
            memset(&gfar_data, 0, sizeof(gfar_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;

            of_irq_to_resource(np, 0, &r[1]);

            model = of_get_property(np, "model", NULL);

            /* If we aren't the FEC we have multiple interrupts */
            if (model && strcasecmp(model, "FEC")) {
                  r[1].name = gfar_tx_intr;

                  r[2].name = gfar_rx_intr;
                  of_irq_to_resource(np, 1, &r[2]);

                  r[3].name = gfar_err_intr;
                  of_irq_to_resource(np, 2, &r[3]);

                  n_res += 2;
            }

            gfar_dev =
                platform_device_register_simple("fsl-gianfar", i, &r[0],
                                        n_res);

            if (IS_ERR(gfar_dev)) {
                  ret = PTR_ERR(gfar_dev);
                  goto err;
            }

            mac_addr = of_get_mac_address(np);
            if (mac_addr)
                  memcpy(gfar_data.mac_addr, mac_addr, 6);

            if (model && !strcasecmp(model, "TSEC"))
                  gfar_data.device_flags =
                      FSL_GIANFAR_DEV_HAS_GIGABIT |
                      FSL_GIANFAR_DEV_HAS_COALESCE |
                      FSL_GIANFAR_DEV_HAS_RMON |
                      FSL_GIANFAR_DEV_HAS_MULTI_INTR;
            if (model && !strcasecmp(model, "eTSEC"))
                  gfar_data.device_flags =
                      FSL_GIANFAR_DEV_HAS_GIGABIT |
                      FSL_GIANFAR_DEV_HAS_COALESCE |
                      FSL_GIANFAR_DEV_HAS_RMON |
                      FSL_GIANFAR_DEV_HAS_MULTI_INTR |
                      FSL_GIANFAR_DEV_HAS_CSUM |
                      FSL_GIANFAR_DEV_HAS_VLAN |
                      FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;

            ctype = of_get_property(np, "phy-connection-type", NULL);

            /* We only care about rgmii-id.  The rest are autodetected */
            if (ctype && !strcmp(ctype, "rgmii-id"))
                  gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
            else
                  gfar_data.interface = PHY_INTERFACE_MODE_MII;

            ph = of_get_property(np, "phy-handle", NULL);
            phy = of_find_node_by_phandle(*ph);

            if (phy == NULL) {
                  ret = -ENODEV;
                  goto unreg;
            }

            mdio = of_get_parent(phy);

            id = of_get_property(phy, "reg", NULL);
            ret = of_address_to_resource(mdio, 0, &res);
            if (ret) {
                  of_node_put(phy);
                  of_node_put(mdio);
                  goto unreg;
            }

            gfar_data.phy_id = *id;
            gfar_data.bus_id = res.start;

            of_node_put(phy);
            of_node_put(mdio);

            ret =
                platform_device_add_data(gfar_dev, &gfar_data,
                                   sizeof(struct
                                        gianfar_platform_data));
            if (ret)
                  goto unreg;
      }

      return 0;

unreg:
      platform_device_unregister(gfar_dev);
err:
      return ret;
}

arch_initcall(gfar_of_init);

#ifdef CONFIG_I2C_BOARDINFO
#include <linux/i2c.h>
struct i2c_driver_device {
      char  *of_device;
      char  *i2c_driver;
      char  *i2c_type;
};

static struct i2c_driver_device i2c_devices[] __initdata = {
      {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
      {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
      {"ricoh,rv5c386",  "rtc-rs5c372", "rv5c386",},
      {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
      {"dallas,ds1307",  "rtc-ds1307",  "ds1307",},
      {"dallas,ds1337",  "rtc-ds1307",  "ds1337",},
      {"dallas,ds1338",  "rtc-ds1307",  "ds1338",},
      {"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
      {"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
      {"stm,m41t00",     "rtc-ds1307",  "m41t00"},
      {"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
};

static int __init of_find_i2c_driver(struct device_node *node,
                             struct i2c_board_info *info)
{
      int i;

      for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
            if (!of_device_is_compatible(node, i2c_devices[i].of_device))
                  continue;
            if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
                      KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
                strlcpy(info->type, i2c_devices[i].i2c_type,
                      I2C_NAME_SIZE) >= I2C_NAME_SIZE)
                  return -ENOMEM;
            return 0;
      }
      return -ENODEV;
}

static void __init of_register_i2c_devices(struct device_node *adap_node,
                                 int bus_num)
{
      struct device_node *node = NULL;

      while ((node = of_get_next_child(adap_node, node))) {
            struct i2c_board_info info = {};
            const u32 *addr;
            int len;

            addr = of_get_property(node, "reg", &len);
            if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
                  printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
                  continue;
            }

            info.irq = irq_of_parse_and_map(node, 0);
            if (info.irq == NO_IRQ)
                  info.irq = -1;

            if (of_find_i2c_driver(node, &info) < 0)
                  continue;

            info.addr = *addr;

            i2c_register_board_info(bus_num, &info, 1);
      }
}

static int __init fsl_i2c_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *i2c_dev;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
           i++) {
            struct resource r[2];
            struct fsl_i2c_platform_data i2c_data;
            const unsigned char *flags = NULL;

            memset(&r, 0, sizeof(r));
            memset(&i2c_data, 0, sizeof(i2c_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;

            of_irq_to_resource(np, 0, &r[1]);

            i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
            if (IS_ERR(i2c_dev)) {
                  ret = PTR_ERR(i2c_dev);
                  goto err;
            }

            i2c_data.device_flags = 0;
            flags = of_get_property(np, "dfsrr", NULL);
            if (flags)
                  i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;

            flags = of_get_property(np, "fsl5200-clocking", NULL);
            if (flags)
                  i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;

            ret =
                platform_device_add_data(i2c_dev, &i2c_data,
                                   sizeof(struct
                                        fsl_i2c_platform_data));
            if (ret)
                  goto unreg;

            of_register_i2c_devices(np, i);
      }

      return 0;

unreg:
      platform_device_unregister(i2c_dev);
err:
      return ret;
}

arch_initcall(fsl_i2c_of_init);
#endif

#ifdef CONFIG_PPC_83xx
static int __init mpc83xx_wdt_init(void)
{
      struct resource r;
      struct device_node *soc, *np;
      struct platform_device *dev;
      const unsigned int *freq;
      int ret;

      np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");

      if (!np) {
            ret = -ENODEV;
            goto nodev;
      }

      soc = of_find_node_by_type(NULL, "soc");

      if (!soc) {
            ret = -ENODEV;
            goto nosoc;
      }

      freq = of_get_property(soc, "bus-frequency", NULL);
      if (!freq) {
            ret = -ENODEV;
            goto err;
      }

      memset(&r, 0, sizeof(r));

      ret = of_address_to_resource(np, 0, &r);
      if (ret)
            goto err;

      dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
      if (IS_ERR(dev)) {
            ret = PTR_ERR(dev);
            goto err;
      }

      ret = platform_device_add_data(dev, freq, sizeof(int));
      if (ret)
            goto unreg;

      of_node_put(soc);
      of_node_put(np);

      return 0;

unreg:
      platform_device_unregister(dev);
err:
      of_node_put(soc);
nosoc:
      of_node_put(np);
nodev:
      return ret;
}

arch_initcall(mpc83xx_wdt_init);
#endif

static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
{
      if (!phy_type)
            return FSL_USB2_PHY_NONE;
      if (!strcasecmp(phy_type, "ulpi"))
            return FSL_USB2_PHY_ULPI;
      if (!strcasecmp(phy_type, "utmi"))
            return FSL_USB2_PHY_UTMI;
      if (!strcasecmp(phy_type, "utmi_wide"))
            return FSL_USB2_PHY_UTMI_WIDE;
      if (!strcasecmp(phy_type, "serial"))
            return FSL_USB2_PHY_SERIAL;

      return FSL_USB2_PHY_NONE;
}

static int __init fsl_usb_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
            *usb_dev_dr_client = NULL;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
           i++) {
            struct resource r[2];
            struct fsl_usb2_platform_data usb_data;
            const unsigned char *prop = NULL;

            memset(&r, 0, sizeof(r));
            memset(&usb_data, 0, sizeof(usb_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;

            of_irq_to_resource(np, 0, &r[1]);

            usb_dev_mph =
                platform_device_register_simple("fsl-ehci", i, r, 2);
            if (IS_ERR(usb_dev_mph)) {
                  ret = PTR_ERR(usb_dev_mph);
                  goto err;
            }

            usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
            usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;

            usb_data.operating_mode = FSL_USB2_MPH_HOST;

            prop = of_get_property(np, "port0", NULL);
            if (prop)
                  usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;

            prop = of_get_property(np, "port1", NULL);
            if (prop)
                  usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;

            prop = of_get_property(np, "phy_type", NULL);
            usb_data.phy_mode = determine_usb_phy(prop);

            ret =
                platform_device_add_data(usb_dev_mph, &usb_data,
                                   sizeof(struct
                                        fsl_usb2_platform_data));
            if (ret)
                  goto unreg_mph;
      }

      for (np = NULL;
           (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
           i++) {
            struct resource r[2];
            struct fsl_usb2_platform_data usb_data;
            const unsigned char *prop = NULL;

            memset(&r, 0, sizeof(r));
            memset(&usb_data, 0, sizeof(usb_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto unreg_mph;

            of_irq_to_resource(np, 0, &r[1]);

            prop = of_get_property(np, "dr_mode", NULL);

            if (!prop || !strcmp(prop, "host")) {
                  usb_data.operating_mode = FSL_USB2_DR_HOST;
                  usb_dev_dr_host = platform_device_register_simple(
                              "fsl-ehci", i, r, 2);
                  if (IS_ERR(usb_dev_dr_host)) {
                        ret = PTR_ERR(usb_dev_dr_host);
                        goto err;
                  }
            } else if (prop && !strcmp(prop, "peripheral")) {
                  usb_data.operating_mode = FSL_USB2_DR_DEVICE;
                  usb_dev_dr_client = platform_device_register_simple(
                              "fsl-usb2-udc", i, r, 2);
                  if (IS_ERR(usb_dev_dr_client)) {
                        ret = PTR_ERR(usb_dev_dr_client);
                        goto err;
                  }
            } else if (prop && !strcmp(prop, "otg")) {
                  usb_data.operating_mode = FSL_USB2_DR_OTG;
                  usb_dev_dr_host = platform_device_register_simple(
                              "fsl-ehci", i, r, 2);
                  if (IS_ERR(usb_dev_dr_host)) {
                        ret = PTR_ERR(usb_dev_dr_host);
                        goto err;
                  }
                  usb_dev_dr_client = platform_device_register_simple(
                              "fsl-usb2-udc", i, r, 2);
                  if (IS_ERR(usb_dev_dr_client)) {
                        ret = PTR_ERR(usb_dev_dr_client);
                        goto err;
                  }
            } else {
                  ret = -EINVAL;
                  goto err;
            }

            prop = of_get_property(np, "phy_type", NULL);
            usb_data.phy_mode = determine_usb_phy(prop);

            if (usb_dev_dr_host) {
                  usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
                  usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
                        dev.coherent_dma_mask;
                  if ((ret = platform_device_add_data(usb_dev_dr_host,
                                    &usb_data, sizeof(struct
                                    fsl_usb2_platform_data))))
                        goto unreg_dr;
            }
            if (usb_dev_dr_client) {
                  usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
                  usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
                        dev.coherent_dma_mask;
                  if ((ret = platform_device_add_data(usb_dev_dr_client,
                                    &usb_data, sizeof(struct
                                    fsl_usb2_platform_data))))
                        goto unreg_dr;
            }
      }
      return 0;

unreg_dr:
      if (usb_dev_dr_host)
            platform_device_unregister(usb_dev_dr_host);
      if (usb_dev_dr_client)
            platform_device_unregister(usb_dev_dr_client);
unreg_mph:
      if (usb_dev_mph)
            platform_device_unregister(usb_dev_mph);
err:
      return ret;
}

arch_initcall(fsl_usb_of_init);

#ifndef CONFIG_PPC_CPM_NEW_BINDING
#ifdef CONFIG_CPM2

extern void init_scc_ioports(struct fs_uart_platform_info*);

static const char fcc_regs[] = "fcc_regs";
static const char fcc_regs_c[] = "fcc_regs_c";
static const char fcc_pram[] = "fcc_pram";
static char bus_id[9][BUS_ID_SIZE];

static int __init fs_enet_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *fs_enet_dev;
      struct resource res;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
           i++) {
            struct resource r[4];
            struct device_node *phy, *mdio;
            struct fs_platform_info fs_enet_data;
            const unsigned int *id, *phy_addr, *phy_irq;
            const void *mac_addr;
            const phandle *ph;
            const char *model;

            memset(r, 0, sizeof(r));
            memset(&fs_enet_data, 0, sizeof(fs_enet_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;
            r[0].name = fcc_regs;

            ret = of_address_to_resource(np, 1, &r[1]);
            if (ret)
                  goto err;
            r[1].name = fcc_pram;

            ret = of_address_to_resource(np, 2, &r[2]);
            if (ret)
                  goto err;
            r[2].name = fcc_regs_c;
            fs_enet_data.fcc_regs_c = r[2].start;

            of_irq_to_resource(np, 0, &r[3]);

            fs_enet_dev =
                platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);

            if (IS_ERR(fs_enet_dev)) {
                  ret = PTR_ERR(fs_enet_dev);
                  goto err;
            }

            model = of_get_property(np, "model", NULL);
            if (model == NULL) {
                  ret = -ENODEV;
                  goto unreg;
            }

            mac_addr = of_get_mac_address(np);
            if (mac_addr)
                  memcpy(fs_enet_data.macaddr, mac_addr, 6);

            ph = of_get_property(np, "phy-handle", NULL);
            phy = of_find_node_by_phandle(*ph);

            if (phy == NULL) {
                  ret = -ENODEV;
                  goto unreg;
            }

            phy_addr = of_get_property(phy, "reg", NULL);
            fs_enet_data.phy_addr = *phy_addr;

            phy_irq = of_get_property(phy, "interrupts", NULL);

            id = of_get_property(np, "device-id", NULL);
            fs_enet_data.fs_no = *id;
            strcpy(fs_enet_data.fs_type, model);

            mdio = of_get_parent(phy);
                ret = of_address_to_resource(mdio, 0, &res);
                if (ret) {
                        of_node_put(phy);
                        of_node_put(mdio);
                        goto unreg;
                }

            fs_enet_data.clk_rx = *((u32 *)of_get_property(np,
                                    "rx-clock", NULL));
            fs_enet_data.clk_tx = *((u32 *)of_get_property(np,
                                    "tx-clock", NULL));

            if (strstr(model, "FCC")) {
                  int fcc_index = *id - 1;
                  const unsigned char *mdio_bb_prop;

                  fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
                  fs_enet_data.rx_ring = 32;
                  fs_enet_data.tx_ring = 32;
                  fs_enet_data.rx_copybreak = 240;
                  fs_enet_data.use_napi = 0;
                  fs_enet_data.napi_weight = 17;
                  fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
                  fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
                  fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);

                  snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
                                          (u32)res.start, fs_enet_data.phy_addr);
                  fs_enet_data.bus_id = (char*)&bus_id[(*id)];
                  fs_enet_data.init_ioports = init_fcc_ioports;

                  mdio_bb_prop = of_get_property(phy, "bitbang", NULL);
                  if (mdio_bb_prop) {
                        struct platform_device *fs_enet_mdio_bb_dev;
                        struct fs_mii_bb_platform_info fs_enet_mdio_bb_data;

                        fs_enet_mdio_bb_dev =
                              platform_device_register_simple("fsl-bb-mdio",
                                          i, NULL, 0);
                        memset(&fs_enet_mdio_bb_data, 0,
                                    sizeof(struct fs_mii_bb_platform_info));
                        fs_enet_mdio_bb_data.mdio_dat.bit =
                              mdio_bb_prop[0];
                        fs_enet_mdio_bb_data.mdio_dir.bit =
                              mdio_bb_prop[1];
                        fs_enet_mdio_bb_data.mdc_dat.bit =
                              mdio_bb_prop[2];
                        fs_enet_mdio_bb_data.mdio_port =
                              mdio_bb_prop[3];
                        fs_enet_mdio_bb_data.mdc_port =
                              mdio_bb_prop[4];
                        fs_enet_mdio_bb_data.delay =
                              mdio_bb_prop[5];

                        fs_enet_mdio_bb_data.irq[0] = phy_irq[0];
                        fs_enet_mdio_bb_data.irq[1] = -1;
                        fs_enet_mdio_bb_data.irq[2] = -1;
                        fs_enet_mdio_bb_data.irq[3] = phy_irq[0];
                        fs_enet_mdio_bb_data.irq[31] = -1;

                        fs_enet_mdio_bb_data.mdio_dat.offset =
                              (u32)&cpm2_immr->im_ioport.iop_pdatc;
                        fs_enet_mdio_bb_data.mdio_dir.offset =
                              (u32)&cpm2_immr->im_ioport.iop_pdirc;
                        fs_enet_mdio_bb_data.mdc_dat.offset =
                              (u32)&cpm2_immr->im_ioport.iop_pdatc;

                        ret = platform_device_add_data(
                                    fs_enet_mdio_bb_dev,
                                    &fs_enet_mdio_bb_data,
                                    sizeof(struct fs_mii_bb_platform_info));
                        if (ret)
                              goto unreg;
                  }

                  of_node_put(phy);
                  of_node_put(mdio);

                  ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
                                         sizeof(struct
                                              fs_platform_info));
                  if (ret)
                        goto unreg;
            }
      }
      return 0;

unreg:
      platform_device_unregister(fs_enet_dev);
err:
      return ret;
}

arch_initcall(fs_enet_of_init);

static const char scc_regs[] = "regs";
static const char scc_pram[] = "pram";

static int __init cpm_uart_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *cpm_uart_dev;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
           i++) {
            struct resource r[3];
            struct fs_uart_platform_info cpm_uart_data;
            const int *id;
            const char *model;

            memset(r, 0, sizeof(r));
            memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;

            r[0].name = scc_regs;

            ret = of_address_to_resource(np, 1, &r[1]);
            if (ret)
                  goto err;
            r[1].name = scc_pram;

            of_irq_to_resource(np, 0, &r[2]);

            cpm_uart_dev =
                platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);

            if (IS_ERR(cpm_uart_dev)) {
                  ret = PTR_ERR(cpm_uart_dev);
                  goto err;
            }

            id = of_get_property(np, "device-id", NULL);
            cpm_uart_data.fs_no = *id;

            model = of_get_property(np, "model", NULL);
            strcpy(cpm_uart_data.fs_type, model);

            cpm_uart_data.uart_clk = ppc_proc_freq;

            cpm_uart_data.tx_num_fifo = 4;
            cpm_uart_data.tx_buf_size = 32;
            cpm_uart_data.rx_num_fifo = 4;
            cpm_uart_data.rx_buf_size = 32;
            cpm_uart_data.clk_rx = *((u32 *)of_get_property(np,
                                    "rx-clock", NULL));
            cpm_uart_data.clk_tx = *((u32 *)of_get_property(np,
                                    "tx-clock", NULL));

            ret =
                platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
                                   sizeof(struct
                                        fs_uart_platform_info));
            if (ret)
                  goto unreg;
      }

      return 0;

unreg:
      platform_device_unregister(cpm_uart_dev);
err:
      return ret;
}

arch_initcall(cpm_uart_of_init);
#endif /* CONFIG_CPM2 */

#ifdef CONFIG_8xx

extern void init_scc_ioports(struct fs_platform_info*);
extern int platform_device_skip(const char *model, int id);

static int __init fs_enet_mdio_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *mdio_dev;
      struct resource res;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "mdio", "fs_enet")) != NULL;
           i++) {
            struct fs_mii_fec_platform_info mdio_data;

            memset(&res, 0, sizeof(res));
            memset(&mdio_data, 0, sizeof(mdio_data));

            ret = of_address_to_resource(np, 0, &res);
            if (ret)
                  goto err;

            mdio_dev =
                platform_device_register_simple("fsl-cpm-fec-mdio",
                                        res.start, &res, 1);
            if (IS_ERR(mdio_dev)) {
                  ret = PTR_ERR(mdio_dev);
                  goto err;
            }

            mdio_data.mii_speed = ((((ppc_proc_freq + 4999999) / 2500000) / 2) & 0x3F) << 1;

            ret =
                platform_device_add_data(mdio_dev, &mdio_data,
                                   sizeof(struct fs_mii_fec_platform_info));
            if (ret)
                  goto unreg;
      }
      return 0;

unreg:
      platform_device_unregister(mdio_dev);
err:
      return ret;
}

arch_initcall(fs_enet_mdio_of_init);

static const char *enet_regs = "regs";
static const char *enet_pram = "pram";
static const char *enet_irq = "interrupt";
static char bus_id[9][BUS_ID_SIZE];

static int __init fs_enet_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *fs_enet_dev = NULL;
      struct resource res;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
           i++) {
            struct resource r[4];
            struct device_node *phy = NULL, *mdio = NULL;
            struct fs_platform_info fs_enet_data;
            const unsigned int *id;
            const unsigned int *phy_addr;
            const void *mac_addr;
            const phandle *ph;
            const char *model;

            memset(r, 0, sizeof(r));
            memset(&fs_enet_data, 0, sizeof(fs_enet_data));

            model = of_get_property(np, "model", NULL);
            if (model == NULL) {
                  ret = -ENODEV;
                  goto unreg;
            }

            id = of_get_property(np, "device-id", NULL);
            fs_enet_data.fs_no = *id;

            if (platform_device_skip(model, *id))
                  continue;

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;
            r[0].name = enet_regs;

            mac_addr = of_get_mac_address(np);
            if (mac_addr)
                  memcpy(fs_enet_data.macaddr, mac_addr, 6);

            ph = of_get_property(np, "phy-handle", NULL);
            if (ph != NULL)
                  phy = of_find_node_by_phandle(*ph);

            if (phy != NULL) {
                  phy_addr = of_get_property(phy, "reg", NULL);
                  fs_enet_data.phy_addr = *phy_addr;
                  fs_enet_data.has_phy = 1;

                  mdio = of_get_parent(phy);
                  ret = of_address_to_resource(mdio, 0, &res);
                  if (ret) {
                        of_node_put(phy);
                        of_node_put(mdio);
                                goto unreg;
                  }
            }

            model = of_get_property(np, "model", NULL);
            strcpy(fs_enet_data.fs_type, model);

            if (strstr(model, "FEC")) {
                  r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
                  r[1].flags = IORESOURCE_IRQ;
                  r[1].name = enet_irq;

                  fs_enet_dev =
                            platform_device_register_simple("fsl-cpm-fec", i, &r[0], 2);

                  if (IS_ERR(fs_enet_dev)) {
                        ret = PTR_ERR(fs_enet_dev);
                        goto err;
                  }

                  fs_enet_data.rx_ring = 128;
                  fs_enet_data.tx_ring = 16;
                  fs_enet_data.rx_copybreak = 240;
                  fs_enet_data.use_napi = 1;
                  fs_enet_data.napi_weight = 17;

                  snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%x:%02x",
                                          (u32)res.start, fs_enet_data.phy_addr);
                  fs_enet_data.bus_id = (char*)&bus_id[i];
                  fs_enet_data.init_ioports = init_fec_ioports;
            }
            if (strstr(model, "SCC")) {
                  ret = of_address_to_resource(np, 1, &r[1]);
                  if (ret)
                        goto err;
                  r[1].name = enet_pram;

                  r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
                  r[2].flags = IORESOURCE_IRQ;
                  r[2].name = enet_irq;

                  fs_enet_dev =
                            platform_device_register_simple("fsl-cpm-scc", i, &r[0], 3);

                  if (IS_ERR(fs_enet_dev)) {
                        ret = PTR_ERR(fs_enet_dev);
                        goto err;
                  }

                  fs_enet_data.rx_ring = 64;
                  fs_enet_data.tx_ring = 8;
                  fs_enet_data.rx_copybreak = 240;
                  fs_enet_data.use_napi = 1;
                  fs_enet_data.napi_weight = 17;

                  snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%s", "fixed@10:1");
                        fs_enet_data.bus_id = (char*)&bus_id[i];
                  fs_enet_data.init_ioports = init_scc_ioports;
            }

            of_node_put(phy);
            of_node_put(mdio);

            ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
                                   sizeof(struct
                                        fs_platform_info));
            if (ret)
                  goto unreg;
      }
      return 0;

unreg:
      platform_device_unregister(fs_enet_dev);
err:
      return ret;
}

arch_initcall(fs_enet_of_init);

static int __init fsl_pcmcia_of_init(void)
{
      struct device_node *np = NULL;
      /*
       * Register all the devices which type is "pcmcia"
       */
      while ((np = of_find_compatible_node(np,
                  "pcmcia", "fsl,pq-pcmcia")) != NULL)
                      of_platform_device_create(np, "m8xx-pcmcia", NULL);
      return 0;
}

arch_initcall(fsl_pcmcia_of_init);

static const char *smc_regs = "regs";
static const char *smc_pram = "pram";

static int __init cpm_smc_uart_of_init(void)
{
      struct device_node *np;
      unsigned int i;
      struct platform_device *cpm_uart_dev;
      int ret;

      for (np = NULL, i = 0;
           (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
           i++) {
            struct resource r[3];
            struct fs_uart_platform_info cpm_uart_data;
            const int *id;
            const char *model;

            memset(r, 0, sizeof(r));
            memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));

            ret = of_address_to_resource(np, 0, &r[0]);
            if (ret)
                  goto err;

            r[0].name = smc_regs;

            ret = of_address_to_resource(np, 1, &r[1]);
            if (ret)
                  goto err;
            r[1].name = smc_pram;

            r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
            r[2].flags = IORESOURCE_IRQ;

            cpm_uart_dev =
                platform_device_register_simple("fsl-cpm-smc:uart", i, &r[0], 3);

            if (IS_ERR(cpm_uart_dev)) {
                  ret = PTR_ERR(cpm_uart_dev);
                  goto err;
            }

            model = of_get_property(np, "model", NULL);
            strcpy(cpm_uart_data.fs_type, model);

            id = of_get_property(np, "device-id", NULL);
            cpm_uart_data.fs_no = *id;
            cpm_uart_data.uart_clk = ppc_proc_freq;

            cpm_uart_data.tx_num_fifo = 4;
            cpm_uart_data.tx_buf_size = 32;
            cpm_uart_data.rx_num_fifo = 4;
            cpm_uart_data.rx_buf_size = 32;

            ret =
                platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
                                   sizeof(struct
                                        fs_uart_platform_info));
            if (ret)
                  goto unreg;
      }

      return 0;

unreg:
      platform_device_unregister(cpm_uart_dev);
err:
      return ret;
}

arch_initcall(cpm_smc_uart_of_init);

#endif /* CONFIG_8xx */
#endif /* CONFIG_PPC_CPM_NEW_BINDING */

int __init fsl_spi_init(struct spi_board_info *board_infos,
                  unsigned int num_board_infos,
                  void (*activate_cs)(u8 cs, u8 polarity),
                  void (*deactivate_cs)(u8 cs, u8 polarity))
{
      struct device_node *np;
      unsigned int i;
      const u32 *sysclk;

      /* SPI controller is either clocked from QE or SoC clock */
      np = of_find_node_by_type(NULL, "qe");
      if (!np)
            np = of_find_node_by_type(NULL, "soc");

      if (!np)
            return -ENODEV;

      sysclk = of_get_property(np, "bus-frequency", NULL);
      if (!sysclk)
            return -ENODEV;

      for (np = NULL, i = 1;
           (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
           i++) {
            int ret = 0;
            unsigned int j;
            const void *prop;
            struct resource res[2];
            struct platform_device *pdev;
            struct fsl_spi_platform_data pdata = {
                  .activate_cs = activate_cs,
                  .deactivate_cs = deactivate_cs,
            };

            memset(res, 0, sizeof(res));

            pdata.sysclk = *sysclk;

            prop = of_get_property(np, "reg", NULL);
            if (!prop)
                  goto err;
            pdata.bus_num = *(u32 *)prop;

            prop = of_get_property(np, "mode", NULL);
            if (prop && !strcmp(prop, "cpu-qe"))
                  pdata.qe_mode = 1;

            for (j = 0; j < num_board_infos; j++) {
                  if (board_infos[j].bus_num == pdata.bus_num)
                        pdata.max_chipselect++;
            }

            if (!pdata.max_chipselect)
                  goto err;

            ret = of_address_to_resource(np, 0, &res[0]);
            if (ret)
                  goto err;

            ret = of_irq_to_resource(np, 0, &res[1]);
            if (ret == NO_IRQ)
                  goto err;

            pdev = platform_device_alloc("mpc83xx_spi", i);
            if (!pdev)
                  goto err;

            ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
            if (ret)
                  goto unreg;

            ret = platform_device_add_resources(pdev, res,
                                        ARRAY_SIZE(res));
            if (ret)
                  goto unreg;

            ret = platform_device_register(pdev);
            if (ret)
                  goto unreg;

            continue;
unreg:
            platform_device_del(pdev);
err:
            continue;
      }

      return spi_register_board_info(board_infos, num_board_infos);
}

#if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
static __be32 __iomem *rstcr;

static int __init setup_rstcr(void)
{
      struct device_node *np;
      np = of_find_node_by_name(NULL, "global-utilities");
      if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
            const u32 *prop = of_get_property(np, "reg", NULL);
            if (prop) {
                  /* map reset control register
                   * 0xE00B0 is offset of reset control register
                   */
                  rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
                  if (!rstcr)
                        printk (KERN_EMERG "Error: reset control "
                                    "register not mapped!\n");
            }
      } else
            printk (KERN_INFO "rstcr compatible register does not exist!\n");
      if (np)
            of_node_put(np);
      return 0;
}

arch_initcall(setup_rstcr);

void fsl_rstcr_restart(char *cmd)
{
      local_irq_disable();
      if (rstcr)
            /* set reset control register */
            out_be32(rstcr, 0x2);   /* HRESET_REQ */

      while (1) ;
}
#endif

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