UBI: Add basic UBI support to U-Boot (Part 6/8)
This patch adds basic UBI (Unsorted Block Image) support to U-Boot.
It's based on the Linux UBI version and basically has a "OS"
translation wrapper that defines most Linux specific calls
(spin_lock() etc.) into no-ops. Some source code parts have been
uncommented by "#ifdef UBI_LINUX". This makes it easier to compare
this version with the Linux version and simplifies future UBI
ports/bug-fixes from the Linux version.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/ubi_uboot.h b/include/ubi_uboot.h
new file mode 100644
index 0000000..295f2c0
--- /dev/null
+++ b/include/ubi_uboot.h
@@ -0,0 +1,217 @@
+/*
+ * Header file for UBI support for U-Boot
+ *
+ * Adaptation from kernel to U-Boot
+ *
+ * Copyright (C) 2005-2007 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * 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.
+ */
+
+#ifndef __UBOOT_UBI_H
+#define __UBOOT_UBI_H
+
+#include <common.h>
+#include <malloc.h>
+#include <div64.h>
+#include <linux/crc32.h>
+#include <linux/mtd/mtd.h>
+
+#ifdef CONFIG_CMD_ONENAND
+#include <onenand_uboot.h>
+#endif
+
+#include <asm/errno.h>
+
+#define DPRINTK(format, args...) \
+do { \
+ printf("%s[%d]: " format "\n", __func__, __LINE__, ##args); \
+} while (0)
+
+/* configurable */
+#define CONFIG_MTD_UBI_WL_THRESHOLD 4096
+#define CONFIG_MTD_UBI_BEB_RESERVE 1
+#define UBI_IO_DEBUG 0
+
+/* debug options (Linux: drivers/mtd/ubi/Kconfig.debug) */
+#undef CONFIG_MTD_UBI_DEBUG
+#undef CONFIG_MTD_UBI_DEBUG_PARANOID
+#undef CONFIG_MTD_UBI_DEBUG_MSG
+#undef CONFIG_MTD_UBI_DEBUG_MSG_EBA
+#undef CONFIG_MTD_UBI_DEBUG_MSG_WL
+#undef CONFIG_MTD_UBI_DEBUG_MSG_IO
+#undef CONFIG_MTD_UBI_DEBUG_MSG_BLD
+#define CONFIG_MTD_UBI_DEBUG_DISABLE_BGT
+
+/* compiler options */
+#define uninitialized_var(x) x = x
+
+/* build.c */
+#define get_device(...)
+#define put_device(...)
+#define ubi_sysfs_init(...) 0
+#define ubi_sysfs_close(...) do { } while (0)
+static inline int is_power_of_2(unsigned long n)
+{
+ return (n != 0 && ((n & (n - 1)) == 0));
+}
+
+/* FIXME */
+#define MKDEV(...) 0
+#define MAJOR(dev) 0
+#define MINOR(dev) 0
+
+#define alloc_chrdev_region(...) 0
+#define unregister_chrdev_region(...)
+
+#define class_create(...) __builtin_return_address(0)
+#define class_create_file(...) 0
+#define class_remove_file(...)
+#define class_destroy(...)
+#define misc_register(...) 0
+#define misc_deregister(...)
+
+/* vmt.c */
+#define device_register(...) 0
+#define volume_sysfs_init(...) 0
+#define volume_sysfs_close(...) do { } while (0)
+
+/* kapi.c */
+
+/* eba.c */
+
+/* io.c */
+#define init_waitqueue_head(...) do { } while (0)
+#define wait_event_interruptible(...) 0
+#define wake_up_interruptible(...) do { } while (0)
+#define print_hex_dump(...) do { } while (0)
+#define dump_stack(...) do { } while (0)
+
+/* wl.c */
+#define task_pid_nr(x) 0
+#define set_freezable(...) do { } while (0)
+#define try_to_freeze(...) 0
+#define set_current_state(...) do { } while (0)
+#define kthread_should_stop(...) 0
+#define schedule() do { } while (0)
+
+/* upd.c */
+static inline unsigned long copy_from_user(void *dest, const void *src,
+ unsigned long count)
+{
+ memcpy((void *)dest, (void *)src, count);
+ return 0;
+}
+
+/* common */
+typedef int spinlock_t;
+typedef int wait_queue_head_t;
+#define spin_lock_init(...)
+#define spin_lock(...)
+#define spin_unlock(...)
+
+#define mutex_init(...)
+#define mutex_lock(...)
+#define mutex_unlock(...)
+
+#define init_rwsem(...) do { } while (0)
+#define down_read(...) do { } while (0)
+#define down_write(...) do { } while (0)
+#define down_write_trylock(...) 0
+#define up_read(...) do { } while (0)
+#define up_write(...) do { } while (0)
+
+struct kmem_cache { int i; };
+#define kmem_cache_create(...) 1
+#define kmem_cache_alloc(obj, gfp) malloc(sizeof(struct ubi_wl_entry))
+#define kmem_cache_free(obj, size) free(size)
+#define kmem_cache_destroy(...)
+
+#define cond_resched() do { } while (0)
+#define yield() do { } while (0)
+
+#define KERN_WARNING
+#define KERN_ERR
+#define KERN_NOTICE
+#define KERN_DEBUG
+
+#define GFP_KERNEL 0
+#define GFP_NOFS 1
+
+#define __user
+#define __init
+#define __exit
+
+#define kthread_create(...) __builtin_return_address(0)
+#define kthread_stop(...) do { } while (0)
+#define wake_up_process(...) do { } while (0)
+
+#define BUS_ID_SIZE 20
+
+struct rw_semaphore { int i; };
+struct device {
+ struct device *parent;
+ struct class *class;
+ char bus_id[BUS_ID_SIZE]; /* position on parent bus */
+ dev_t devt; /* dev_t, creates the sysfs "dev" */
+ void (*release)(struct device *dev);
+};
+struct mutex { int i; };
+struct kernel_param { int i; };
+
+struct cdev {
+ int owner;
+ dev_t dev;
+};
+#define cdev_init(...) do { } while (0)
+#define cdev_add(...) 0
+#define cdev_del(...) do { } while (0)
+
+#define MAX_ERRNO 4095
+#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
+
+static inline void *ERR_PTR(long error)
+{
+ return (void *) error;
+}
+
+static inline long PTR_ERR(const void *ptr)
+{
+ return (long) ptr;
+}
+
+static inline long IS_ERR(const void *ptr)
+{
+ return IS_ERR_VALUE((unsigned long)ptr);
+}
+
+/* Force a compilation error if condition is true */
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+/* module */
+#define THIS_MODULE 0
+#define try_module_get(...) 0
+#define module_put(...) do { } while (0)
+#define module_init(...)
+#define module_exit(...)
+#define EXPORT_SYMBOL(...)
+#define EXPORT_SYMBOL_GPL(...)
+#define module_param_call(...)
+#define MODULE_PARM_DESC(...)
+#define MODULE_VERSION(...)
+#define MODULE_DESCRIPTION(...)
+#define MODULE_AUTHOR(...)
+#define MODULE_LICENSE(...)
+
+#include "../drivers/mtd/ubi/ubi.h"
+
+/* functions */
+extern int ubi_mtd_param_parse(const char *val, struct kernel_param *kp);
+extern int ubi_init(void);
+
+extern struct ubi_device *ubi_devices[];
+
+#endif
