ddr: altera: Drop custom dram_bank_mmu_setup() on Arria10

[u-boot] / include / os.h

diff --git a/include/os.h b/include/os.h
index b65fba430144d2587c068756fd8bfbd001799354..c8e0f52d306345ac91d2a57d3dffe913e98e3764 100644 (file)
--- a/include/os.h
+++ b/include/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Operating System Interface
  *
@@ -5,7 +6,6 @@
  * They are kept in a separate file so we can include system headers.
  *
  * Copyright (c) 2011 The Chromium OS Authors.
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __OS_H__
@@ -13,6 +13,7 @@
 
 #include <linux/types.h>
 
+struct rtc_time;
 struct sandbox_state;
 
 /**
@@ -64,7 +65,7 @@ off_t os_lseek(int fd, off_t offset, int whence);
  * Access to the OS open() system call
  *
  * \param pathname     Pathname of file to open
- * \param flags                Flags, like O_RDONLY, O_RDWR
+ * \param flags                Flags, like OS_O_RDONLY, OS_O_RDWR
  * \return file descriptor, or -1 on error
  */
 int os_open(const char *pathname, int flags);
@@ -83,6 +84,14 @@ int os_open(const char *pathname, int flags);
  */
 int os_close(int fd);
 
+/**
+ * Access to the OS unlink() system call
+ *
+ * \param pathname Path of file to delete
+ * \return 0 for success, other for error
+ */
+int os_unlink(const char *pathname);
+
 /**
  * Access to the OS exit() system call
  *
@@ -95,8 +104,20 @@ void os_exit(int exit_code) __attribute__((noreturn));
 
 /**
  * Put tty into raw mode to mimic serial console better
+ *
+ * @param fd           File descriptor of stdin (normally 0)
+ * @param allow_sigs   Allow Ctrl-C, Ctrl-Z to generate signals rather than
+ *                     be handled by U-Boot
+ */
+void os_tty_raw(int fd, bool allow_sigs);
+
+/**
+ * Restore the tty to its original mode
+ *
+ * Call this to restore the original terminal mode, after it has been changed
+ * by os_tty_raw(). This is an internal function.
  */
-void os_tty_raw(int fd);
+void os_fd_restore(void);
 
 /**
  * Acquires some memory from the underlying os.
@@ -113,7 +134,7 @@ void *os_malloc(size_t length);
  *
  * \param ptr          Pointer to memory block to free
  */
-void *os_free(void *ptr);
+void os_free(void *ptr);
 
 /**
  * Reallocate previously-allocated memory to increase/decrease space
@@ -193,10 +214,19 @@ struct os_dirent_node {
  */
 int os_dirent_ls(const char *dirname, struct os_dirent_node **headp);
 
+/**
+ * Free directory list
+ *
+ * This frees a linked list containing a directory listing.
+ *
+ * @param node         Pointer to head of linked list
+ */
+void os_dirent_free(struct os_dirent_node *node);
+
 /**
  * Get the name of a directory entry type
  *
- * @param type         Type to cehck
+ * @param type         Type to check
  * @return string containing the name of that type, or "???" if none/invalid
  */
 const char *os_dirent_get_typename(enum os_dirent_t type);
@@ -205,9 +235,10 @@ const char *os_dirent_get_typename(enum os_dirent_t type);
  * Get the size of a file
  *
  * @param fname                Filename to check
- * @return size of file, or -1 if an error ocurred
+ * @param size         size of file is returned if no error
+ * @return 0 on success or -1 if an error ocurred
  */
-ssize_t os_get_filesize(const char *fname);
+int os_get_filesize(const char *fname, loff_t *size);
 
 /**
  * Write a character to the controlling OS terminal
@@ -245,4 +276,79 @@ int os_write_ram_buf(const char *fname);
  */
 int os_read_ram_buf(const char *fname);
 
+/**
+ * Jump to a new executable image
+ *
+ * This uses exec() to run a new executable image, after putting it in a
+ * temporary file. The same arguments and environment are passed to this
+ * new image, with the addition of:
+ *
+ *     -j <filename>   Specifies the filename the image was written to. The
+ *                     calling image may want to delete this at some point.
+ *     -m <filename>   Specifies the file containing the sandbox memory
+ *                     (ram_buf) from this image, so that the new image can
+ *                     have access to this. It also means that the original
+ *                     memory filename passed to U-Boot will be left intact.
+ *
+ * @param dest         Buffer containing executable image
+ * @param size         Size of buffer
+ */
+int os_jump_to_image(const void *dest, int size);
+
+/**
+ * os_find_u_boot() - Determine the path to U-Boot proper
+ *
+ * This function is intended to be called from within sandbox SPL. It uses
+ * a few heuristics to find U-Boot proper. Normally it is either in the same
+ * directory, or the directory above (since u-boot-spl is normally in an
+ * spl/ subdirectory when built).
+ *
+ * @fname:     Place to put full path to U-Boot
+ * @maxlen:    Maximum size of @fname
+ * @return 0 if OK, -NOSPC if the filename is too large, -ENOENT if not found
+ */
+int os_find_u_boot(char *fname, int maxlen);
+
+/**
+ * os_spl_to_uboot() - Run U-Boot proper
+ *
+ * When called from SPL, this runs U-Boot proper. The filename is obtained by
+ * calling os_find_u_boot().
+ *
+ * @fname:     Full pathname to U-Boot executable
+ * @return 0 if OK, -ve on error
+ */
+int os_spl_to_uboot(const char *fname);
+
+/**
+ * Read the current system time
+ *
+ * This reads the current Local Time and places it into the provided
+ * structure.
+ *
+ * @param rt           Place to put system time
+ */
+void os_localtime(struct rtc_time *rt);
+
+/**
+ * os_setjmp() - Call setjmp()
+ *
+ * Call the host system's setjmp() function.
+ *
+ * @jmp: Buffer to store current execution state
+ * @size: Size of buffer
+ * @return normal setjmp() value if OK, -ENOSPC if @size is too small
+ */
+int os_setjmp(ulong *jmp, int size);
+
+/**
+ * os_longjmp() - Call longjmp()
+ *
+ * Call the host system's longjmp() function.
+ *
+ * @jmp: Buffer where previous execution state was stored
+ * @ret: Value to pass to longjmp()
+ */
+void os_longjmp(ulong *jmp, int ret);
+
 #endif