mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 14:14:01 +08:00
38669e045d
This patch starts using all the configuration infrastructure. - generic GPIO library is forced now - sysreg GPIOs are used as MMC CD and WP information sources; thanks to this MMCI auxiliary data is not longer necessary - DVI muxer and mode control is removed from non-DT V2P-CA9 code as this is now handled by the vexpress-dvi driver - clock generators control is removed as is being handled by the common clock driver now - the sysreg and sysctl control is now delegated to the appropriate drivers and all related code was removed - NOR Flash set_vpp function has been removed as the control bit used does _not_ control its VPP line, but the #WP signal instead (which is de facto unusable in case of Linux MTD drivers); this also allowed the remove its DT auxiliary data The non-DT code defines only minimal required number of the config devices. Device Trees are updated to make use of all new features. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/*
|
|
* 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_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);
|
|
|
|
void vexpress_power_off(void);
|
|
void vexpress_restart(char str, const char *cmd);
|
|
|
|
/* 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
|