/* * 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.h> #include <linux/of_platform.h> #include <linux/phy.h> #include <linux/phy_fixed.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; u32 naddr; const u32 *prop = of_get_property(soc, "#address-cells", &size); if (prop && size == 4) naddr = *prop; else naddr = 2; prop = of_get_property(soc, "ranges", &size); if (prop) immrbase = of_translate_address(soc, prop + naddr); of_node_put(soc); } return immrbase; } EXPORT_SYMBOL(get_immrbase); static u32 sysfreq = -1; u32 fsl_get_sys_freq(void) { struct device_node *soc; const u32 *prop; int size; if (sysfreq != -1) return sysfreq; soc = of_find_node_by_type(NULL, "soc"); if (!soc) return -1; prop = of_get_property(soc, "clock-frequency", &size); if (!prop || size != sizeof(*prop) || *prop == 0) prop = of_get_property(soc, "bus-frequency", &size); if (prop && size == sizeof(*prop)) sysfreq = *prop; of_node_put(soc); return sysfreq; } EXPORT_SYMBOL(fsl_get_sys_freq); #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || 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) node = of_find_compatible_node(NULL, NULL, "fsl,qe"); if (!node) node = of_find_node_by_type(NULL, "qe"); if (node) { prop = of_get_property(node, "brg-frequency", &size); if (prop && size == 4) brgfreq = *prop; if (brgfreq == -1 || brgfreq == 0) { prop = of_get_property(node, "bus-frequency", &size); if (prop && size == 4) brgfreq = *prop / 2; } 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 */ #ifdef CONFIG_FIXED_PHY static int __init of_add_fixed_phys(void) { int ret; struct device_node *np; u32 *fixed_link; struct fixed_phy_status status = {}; for_each_node_by_name(np, "ethernet") { fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL); if (!fixed_link) continue; status.link = 1; status.duplex = fixed_link[1]; status.speed = fixed_link[2]; status.pause = fixed_link[3]; status.asym_pause = fixed_link[4]; ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status); if (ret) { of_node_put(np); return ret; } } return 0; } arch_initcall(of_add_fixed_phys); #endif /* CONFIG_FIXED_PHY */ 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 = 0; struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL, *usb_dev_dr_client = NULL; int ret; for_each_compatible_node(np, NULL, "fsl-usb2-mph") { 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; i++; } for_each_compatible_node(np, NULL, "fsl-usb2-dr") { struct resource r[2]; struct fsl_usb2_platform_data usb_data; const unsigned char *prop = NULL; if (!of_device_is_available(np)) continue; 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; } i++; } 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); #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))) { rstcr = of_iomap(np, 0) + 0xb0; 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 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) struct platform_diu_data_ops diu_ops; EXPORT_SYMBOL(diu_ops); #endif