263 lines
7.4 KiB
C
263 lines
7.4 KiB
C
/*
|
|
* Global definition of all the bootwrapper operations.
|
|
*
|
|
* Author: Mark A. Greer <mgreer@mvista.com>
|
|
*
|
|
* 2006 (c) MontaVista Software, Inc. This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*/
|
|
#ifndef _PPC_BOOT_OPS_H_
|
|
#define _PPC_BOOT_OPS_H_
|
|
|
|
#include <stddef.h>
|
|
#include "types.h"
|
|
#include "string.h"
|
|
|
|
#define COMMAND_LINE_SIZE 512
|
|
#define MAX_PATH_LEN 256
|
|
#define MAX_PROP_LEN 256 /* What should this be? */
|
|
|
|
typedef void (*kernel_entry_t)(unsigned long r3, unsigned long r4, void *r5);
|
|
|
|
/* Platform specific operations */
|
|
struct platform_ops {
|
|
void (*fixups)(void);
|
|
void (*image_hdr)(const void *);
|
|
void * (*malloc)(unsigned long size);
|
|
void (*free)(void *ptr);
|
|
void * (*realloc)(void *ptr, unsigned long size);
|
|
void (*exit)(void);
|
|
void * (*vmlinux_alloc)(unsigned long size);
|
|
};
|
|
extern struct platform_ops platform_ops;
|
|
|
|
/* Device Tree operations */
|
|
struct dt_ops {
|
|
void * (*finddevice)(const char *name);
|
|
int (*getprop)(const void *phandle, const char *name, void *buf,
|
|
const int buflen);
|
|
int (*setprop)(const void *phandle, const char *name,
|
|
const void *buf, const int buflen);
|
|
int (*del_node)(const void *phandle);
|
|
void *(*get_parent)(const void *phandle);
|
|
/* The node must not already exist. */
|
|
void *(*create_node)(const void *parent, const char *name);
|
|
void *(*find_node_by_prop_value)(const void *prev,
|
|
const char *propname,
|
|
const char *propval, int proplen);
|
|
void *(*find_node_by_compatible)(const void *prev,
|
|
const char *compat);
|
|
unsigned long (*finalize)(void);
|
|
char *(*get_path)(const void *phandle, char *buf, int len);
|
|
};
|
|
extern struct dt_ops dt_ops;
|
|
|
|
/* Console operations */
|
|
struct console_ops {
|
|
int (*open)(void);
|
|
void (*write)(const char *buf, int len);
|
|
void (*edit_cmdline)(char *buf, int len);
|
|
void (*close)(void);
|
|
void *data;
|
|
};
|
|
extern struct console_ops console_ops;
|
|
|
|
/* Serial console operations */
|
|
struct serial_console_data {
|
|
int (*open)(void);
|
|
void (*putc)(unsigned char c);
|
|
unsigned char (*getc)(void);
|
|
u8 (*tstc)(void);
|
|
void (*close)(void);
|
|
};
|
|
|
|
struct loader_info {
|
|
void *promptr;
|
|
unsigned long initrd_addr, initrd_size;
|
|
char *cmdline;
|
|
int cmdline_len;
|
|
};
|
|
extern struct loader_info loader_info;
|
|
|
|
void start(void);
|
|
void fdt_init(void *blob);
|
|
int serial_console_init(void);
|
|
int ns16550_console_init(void *devp, struct serial_console_data *scdp);
|
|
int mpsc_console_init(void *devp, struct serial_console_data *scdp);
|
|
int cpm_console_init(void *devp, struct serial_console_data *scdp);
|
|
int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp);
|
|
int uartlite_console_init(void *devp, struct serial_console_data *scdp);
|
|
void *simple_alloc_init(char *base, unsigned long heap_size,
|
|
unsigned long granularity, unsigned long max_allocs);
|
|
extern void flush_cache(void *, unsigned long);
|
|
int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
|
|
int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
|
|
int dt_is_compatible(void *node, const char *compat);
|
|
void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize);
|
|
int dt_get_virtual_reg(void *node, void **addr, int nres);
|
|
|
|
static inline void *finddevice(const char *name)
|
|
{
|
|
return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
|
|
}
|
|
|
|
static inline int getprop(void *devp, const char *name, void *buf, int buflen)
|
|
{
|
|
return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
|
|
}
|
|
|
|
static inline int setprop(void *devp, const char *name,
|
|
const void *buf, int buflen)
|
|
{
|
|
return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
|
|
}
|
|
#define setprop_val(devp, name, val) \
|
|
do { \
|
|
typeof(val) x = (val); \
|
|
setprop((devp), (name), &x, sizeof(x)); \
|
|
} while (0)
|
|
|
|
static inline int setprop_str(void *devp, const char *name, const char *buf)
|
|
{
|
|
if (dt_ops.setprop)
|
|
return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static inline int del_node(const void *devp)
|
|
{
|
|
return dt_ops.del_node ? dt_ops.del_node(devp) : -1;
|
|
}
|
|
|
|
static inline void *get_parent(const char *devp)
|
|
{
|
|
return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
|
|
}
|
|
|
|
static inline void *create_node(const void *parent, const char *name)
|
|
{
|
|
return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
|
|
}
|
|
|
|
|
|
static inline void *find_node_by_prop_value(const void *prev,
|
|
const char *propname,
|
|
const char *propval, int proplen)
|
|
{
|
|
if (dt_ops.find_node_by_prop_value)
|
|
return dt_ops.find_node_by_prop_value(prev, propname,
|
|
propval, proplen);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *find_node_by_prop_value_str(const void *prev,
|
|
const char *propname,
|
|
const char *propval)
|
|
{
|
|
return find_node_by_prop_value(prev, propname, propval,
|
|
strlen(propval) + 1);
|
|
}
|
|
|
|
static inline void *find_node_by_devtype(const void *prev,
|
|
const char *type)
|
|
{
|
|
return find_node_by_prop_value_str(prev, "device_type", type);
|
|
}
|
|
|
|
static inline void *find_node_by_alias(const char *alias)
|
|
{
|
|
void *devp = finddevice("/aliases");
|
|
|
|
if (devp) {
|
|
char path[MAX_PATH_LEN];
|
|
if (getprop(devp, alias, path, MAX_PATH_LEN) > 0)
|
|
return finddevice(path);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *find_node_by_compatible(const void *prev,
|
|
const char *compat)
|
|
{
|
|
if (dt_ops.find_node_by_compatible)
|
|
return dt_ops.find_node_by_compatible(prev, compat);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void dt_fixup_memory(u64 start, u64 size);
|
|
void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
|
|
void dt_fixup_clock(const char *path, u32 freq);
|
|
void dt_fixup_mac_address_by_alias(const char *alias, const u8 *addr);
|
|
void dt_fixup_mac_address(u32 index, const u8 *addr);
|
|
void __dt_fixup_mac_addresses(u32 startindex, ...);
|
|
#define dt_fixup_mac_addresses(...) \
|
|
__dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
|
|
|
|
|
|
static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
|
|
{
|
|
return find_node_by_prop_value(NULL, "linux,phandle",
|
|
(char *)&linuxphandle, sizeof(u32));
|
|
}
|
|
|
|
static inline char *get_path(const void *phandle, char *buf, int len)
|
|
{
|
|
if (dt_ops.get_path)
|
|
return dt_ops.get_path(phandle, buf, len);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *malloc(unsigned long size)
|
|
{
|
|
return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
|
|
}
|
|
|
|
static inline void free(void *ptr)
|
|
{
|
|
if (platform_ops.free)
|
|
platform_ops.free(ptr);
|
|
}
|
|
|
|
static inline void exit(void)
|
|
{
|
|
if (platform_ops.exit)
|
|
platform_ops.exit();
|
|
for(;;);
|
|
}
|
|
#define fatal(args...) { printf(args); exit(); }
|
|
|
|
|
|
#define BSS_STACK(size) \
|
|
static char _bss_stack[size]; \
|
|
void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
|
|
|
|
extern unsigned long timebase_period_ns;
|
|
void udelay(long delay);
|
|
|
|
extern char _start[];
|
|
extern char __bss_start[];
|
|
extern char _end[];
|
|
extern char _vmlinux_start[];
|
|
extern char _vmlinux_end[];
|
|
extern char _initrd_start[];
|
|
extern char _initrd_end[];
|
|
extern char _dtb_start[];
|
|
extern char _dtb_end[];
|
|
|
|
static inline __attribute__((const))
|
|
int __ilog2_u32(u32 n)
|
|
{
|
|
int bit;
|
|
asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n));
|
|
return 31 - bit;
|
|
}
|
|
|
|
#endif /* _PPC_BOOT_OPS_H_ */
|