1 files changed, 121 insertions, 0 deletions

diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h
new file mode 100644
index 000000000000..c52215ff4245
--- /dev/null
+++ b/include/linux/vexpress.h
@@ -0,0 +1,121 @@
+/*
+ * 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