Edit File: vexpress.h
/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Copyright (C) 2012 ARM Limited */ #ifndef _LINUX_VEXPRESS_H #define _LINUX_VEXPRESS_H #include <linux/device.h> #define VEXPRESS_SITE_MB 0 #define VEXPRESS_SITE_DB1 1 #define VEXPRESS_SITE_DB2 2 #define VEXPRESS_SITE_MASTER 0xf #define VEXPRESS_CONFIG_STATUS_DONE 0 #define VEXPRESS_CONFIG_STATUS_WAIT 1 #define VEXPRESS_GPIO_MMC_CARDIN 0 #define VEXPRESS_GPIO_MMC_WPROT 1 #define VEXPRESS_GPIO_FLASH_WPn 2 #define VEXPRESS_GPIO_LED0 3 #define VEXPRESS_GPIO_LED1 4 #define VEXPRESS_GPIO_LED2 5 #define VEXPRESS_GPIO_LED3 6 #define VEXPRESS_GPIO_LED4 7 #define VEXPRESS_GPIO_LED5 8 #define VEXPRESS_GPIO_LED6 9 #define VEXPRESS_GPIO_LED7 10 #define VEXPRESS_RES_FUNC(_site, _func) \ { \ .start = (_site), \ .end = (_func), \ .flags = IORESOURCE_BUS, \ } /* Config bridge API */ /** * struct vexpress_config_bridge_info - description of the platform * configuration infrastructure bridge. * * @name: Bridge name * * @func_get: Obtains pointer to a configuration function for a given * device or a Device Tree node, to be used with @func_put * and @func_exec. The node pointer should take precedence * over device pointer when both are passed. * * @func_put: Tells the bridge that the function will not be used any * more, so all allocated resources can be released. * * @func_exec: Executes a configuration function read or write operation. * The offset selects a 32 bit word of the value accessed. * Must return VEXPRESS_CONFIG_STATUS_DONE when operation * is finished immediately, VEXPRESS_CONFIG_STATUS_WAIT when * will be completed in some time or negative value in case * of error. */ struct vexpress_config_bridge_info { const char *name; void *(*func_get)(struct device *dev, struct device_node *node); void (*func_put)(void *func); int (*func_exec)(void *func, int offset, bool write, u32 *data); }; struct vexpress_config_bridge; struct vexpress_config_bridge *vexpress_config_bridge_register( struct device_node *node, struct vexpress_config_bridge_info *info); void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge); void vexpress_config_complete(struct vexpress_config_bridge *bridge, int status); /* Config function API */ struct vexpress_config_func; struct vexpress_config_func *__vexpress_config_func_get(struct device *dev, struct device_node *node); #define vexpress_config_func_get_by_dev(dev) \ __vexpress_config_func_get(dev, NULL) #define vexpress_config_func_get_by_node(node) \ __vexpress_config_func_get(NULL, node) void vexpress_config_func_put(struct vexpress_config_func *func); /* Both may sleep! */ int vexpress_config_read(struct vexpress_config_func *func, int offset, u32 *data); int vexpress_config_write(struct vexpress_config_func *func, int offset, u32 data); /* Platform control */ u32 vexpress_get_procid(int site); u32 vexpress_get_hbi(int site); void *vexpress_get_24mhz_clock_base(void); void vexpress_flags_set(u32 data); #define vexpress_get_site_by_node(node) __vexpress_get_site(NULL, node) #define vexpress_get_site_by_dev(dev) __vexpress_get_site(dev, NULL) unsigned __vexpress_get_site(struct device *dev, struct device_node *node); void vexpress_sysreg_early_init(void __iomem *base); void vexpress_sysreg_of_early_init(void); /* Clocks */ struct clk *vexpress_osc_setup(struct device *dev); void vexpress_osc_of_setup(struct device_node *node); void vexpress_clk_init(void __iomem *sp810_base); void vexpress_clk_of_init(void); #endif