diff options
Diffstat (limited to 'arch/powerpc/sysdev/fsl_soc.c')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 555 |
1 files changed, 156 insertions, 399 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index ceb584682fa..ffd1169ebaa 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -3,13 +3,15 @@ * * 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/config.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/init.h> @@ -17,19 +19,31 @@ #include <linux/major.h> #include <linux/delay.h> #include <linux/irq.h> -#include <linux/module.h> +#include <linux/export.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/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 <linux/atomic.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/time.h> #include <asm/prom.h> +#include <asm/machdep.h> #include <sysdev/fsl_soc.h> #include <mm/mmu_decl.h> +#include <asm/cpm2.h> +#include <asm/fsl_hcalls.h> /* For the Freescale hypervisor */ +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) @@ -41,453 +55,196 @@ phys_addr_t get_immrbase(void) soc = of_find_node_by_type(NULL, "soc"); if (soc) { - unsigned int size; - void *prop = get_property(soc, "reg", &size); - immrbase = of_translate_address(soc, prop); + int size; + u32 naddr; + const __be32 *prop = of_get_property(soc, "#address-cells", &size); + + if (prop && size == 4) + naddr = be32_to_cpup(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 int __init gfar_mdio_of_init(void) +static u32 sysfreq = -1; + +u32 fsl_get_sys_freq(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; - } + struct device_node *soc; + const u32 *prop; + int size; - for (k = 0; k < 32; k++) - mdio_data.irq[k] = -1; + if (sysfreq != -1) + return sysfreq; - while ((child = of_get_next_child(np, child)) != NULL) { - if (child->n_intrs) { - u32 *id = - (u32 *) get_property(child, "reg", NULL); - mdio_data.irq[*id] = child->intrs[0].line; - } - } + soc = of_find_node_by_type(NULL, "soc"); + if (!soc) + return -1; - ret = - platform_device_add_data(mdio_dev, &mdio_data, - sizeof(struct gianfar_mdio_data)); - if (ret) - goto unreg; - } + prop = of_get_property(soc, "clock-frequency", &size); + if (!prop || size != sizeof(*prop) || *prop == 0) + prop = of_get_property(soc, "bus-frequency", &size); - return 0; + if (prop && size == sizeof(*prop)) + sysfreq = *prop; -unreg: - platform_device_unregister(mdio_dev); -err: - return ret; + of_node_put(soc); + return sysfreq; } +EXPORT_SYMBOL(fsl_get_sys_freq); -arch_initcall(gfar_mdio_of_init); +#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx) -static const char *gfar_tx_intr = "tx"; -static const char *gfar_rx_intr = "rx"; -static const char *gfar_err_intr = "error"; +static u32 brgfreq = -1; -static int __init gfar_of_init(void) +u32 get_brgfreq(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; - unsigned int *id; - char *model; - void *mac_addr; - phandle *ph; - - 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; - - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; - r[1].flags = IORESOURCE_IRQ; - - model = 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; - r[2].start = np->intrs[1].line; - r[2].end = np->intrs[1].line; - r[2].flags = IORESOURCE_IRQ; - - r[3].name = gfar_err_intr; - r[3].start = np->intrs[2].line; - r[3].end = np->intrs[2].line; - r[3].flags = IORESOURCE_IRQ; - } + struct device_node *node; + const unsigned int *prop; + int size; - gfar_dev = - platform_device_register_simple("fsl-gianfar", i, &r[0], - np->n_intrs + 1); + if (brgfreq != -1) + return brgfreq; - if (IS_ERR(gfar_dev)) { - ret = PTR_ERR(gfar_dev); - goto err; - } - - mac_addr = get_property(np, "address", NULL); - 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; - - ph = (phandle *) get_property(np, "phy-handle", NULL); - phy = of_find_node_by_phandle(*ph); - - if (phy == NULL) { - ret = -ENODEV; - goto unreg; - } + 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; - mdio = of_get_parent(phy); - - id = (u32 *) 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; + of_node_put(node); + return brgfreq; } - return 0; - -unreg: - platform_device_unregister(gfar_dev); -err: - return ret; -} - -arch_initcall(gfar_of_init); - -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; - 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; - - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; - r[1].flags = IORESOURCE_IRQ; - - i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2); - if (IS_ERR(i2c_dev)) { - ret = PTR_ERR(i2c_dev); - goto err; + /* 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; } - - i2c_data.device_flags = 0; - flags = get_property(np, "dfsrr", NULL); - if (flags) - i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR; - - flags = 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_node_put(node); } - return 0; - -unreg: - platform_device_unregister(i2c_dev); -err: - return ret; + return brgfreq; } -arch_initcall(fsl_i2c_of_init); - -#ifdef CONFIG_PPC_83xx -static int __init mpc83xx_wdt_init(void) -{ - struct resource r; - struct device_node *soc, *np; - struct platform_device *dev; - unsigned int *freq; - int ret; - - np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt"); +EXPORT_SYMBOL(get_brgfreq); - if (!np) { - ret = -ENODEV; - goto nodev; - } - - soc = of_find_node_by_type(NULL, "soc"); - - if (!soc) { - ret = -ENODEV; - goto nosoc; - } +static u32 fs_baudrate = -1; - freq = (unsigned int *)get_property(soc, "bus-frequency", NULL); - if (!freq) { - ret = -ENODEV; - goto err; - } +u32 get_baudrate(void) +{ + struct device_node *node; - memset(&r, 0, sizeof(r)); + if (fs_baudrate != -1) + return fs_baudrate; - ret = of_address_to_resource(np, 0, &r); - if (ret) - goto err; + node = of_find_node_by_type(NULL, "serial"); + if (node) { + int size; + const unsigned int *prop = of_get_property(node, + "current-speed", &size); - dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1); - if (IS_ERR(dev)) { - ret = PTR_ERR(dev); - goto err; + if (prop) + fs_baudrate = *prop; + of_node_put(node); } - 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; + return fs_baudrate; } -arch_initcall(mpc83xx_wdt_init); -#endif +EXPORT_SYMBOL(get_baudrate); +#endif /* CONFIG_CPM2 */ -static enum fsl_usb2_phy_modes determine_usb_phy(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; -} +#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) +static __be32 __iomem *rstcr; -static int __init fsl_usb_of_init(void) +static int __init setup_rstcr(void) { struct device_node *np; - unsigned int i; - struct platform_device *usb_dev; - 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; - 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; - - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; - r[1].flags = IORESOURCE_IRQ; - - usb_dev = - platform_device_register_simple("fsl-usb2-mph", i, r, 2); - if (IS_ERR(usb_dev)) { - ret = PTR_ERR(usb_dev); - goto err; - } - - usb_dev->dev.coherent_dma_mask = 0xffffffffUL; - usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask; - - usb_data.operating_mode = FSL_USB2_MPH_HOST; - - prop = get_property(np, "port0", NULL); - if (prop) - usb_data.port_enables |= FSL_USB2_PORT0_ENABLED; - prop = get_property(np, "port1", NULL); - if (prop) - usb_data.port_enables |= FSL_USB2_PORT1_ENABLED; + for_each_node_by_name(np, "global-utilities") { + if ((of_get_property(np, "fsl,has-rstcr", NULL))) { + rstcr = of_iomap(np, 0) + 0xb0; + if (!rstcr) + printk (KERN_ERR "Error: reset control " + "register not mapped!\n"); + break; + } + } - prop = get_property(np, "phy_type", NULL); - usb_data.phy_mode = determine_usb_phy(prop); + if (!rstcr && ppc_md.restart == fsl_rstcr_restart) + printk(KERN_ERR "No RSTCR register, warm reboot won't work\n"); - ret = - platform_device_add_data(usb_dev, &usb_data, - sizeof(struct - fsl_usb2_platform_data)); - if (ret) - goto unreg; - } + if (np) + of_node_put(np); return 0; - -unreg: - platform_device_unregister(usb_dev); -err: - return ret; } -arch_initcall(fsl_usb_of_init); +arch_initcall(setup_rstcr); -static int __init fsl_usb_dr_of_init(void) +void fsl_rstcr_restart(char *cmd) { - struct device_node *np; - unsigned int i; - struct platform_device *usb_dev; - int ret; - - for (np = NULL, i = 0; - (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL; - i++) { - struct resource r[2]; - struct fsl_usb2_platform_data usb_data; - 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; - - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; - r[1].flags = IORESOURCE_IRQ; - - usb_dev = - platform_device_register_simple("fsl-usb2-dr", i, r, 2); - if (IS_ERR(usb_dev)) { - ret = PTR_ERR(usb_dev); - goto err; - } - - usb_dev->dev.coherent_dma_mask = 0xffffffffUL; - usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask; - - usb_data.operating_mode = FSL_USB2_DR_HOST; - - prop = get_property(np, "phy_type", NULL); - usb_data.phy_mode = determine_usb_phy(prop); + local_irq_disable(); + if (rstcr) + /* set reset control register */ + out_be32(rstcr, 0x2); /* HRESET_REQ */ - ret = - platform_device_add_data(usb_dev, &usb_data, - sizeof(struct - fsl_usb2_platform_data)); - if (ret) - goto unreg; - } + while (1) ; +} +#endif - return 0; +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) +struct platform_diu_data_ops diu_ops; +EXPORT_SYMBOL(diu_ops); +#endif -unreg: - platform_device_unregister(usb_dev); -err: - return ret; +#ifdef CONFIG_EPAPR_PARAVIRT +/* + * Restart the current partition + * + * This function should be assigned to the ppc_md.restart function pointer, + * to initiate a partition restart when we're running under the Freescale + * hypervisor. + */ +void fsl_hv_restart(char *cmd) +{ + pr_info("hv restart\n"); + fh_partition_restart(-1); } -arch_initcall(fsl_usb_dr_of_init); +/* + * Halt the current partition + * + * This function should be assigned to the ppc_md.power_off and ppc_md.halt + * function pointers, to shut down the partition when we're running under + * the Freescale hypervisor. + */ +void fsl_hv_halt(void) +{ + pr_info("hv exit\n"); + fh_partition_stop(-1); +} +#endif |
