| /* |
| * 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 BOOT_COMMAND_LINE_SIZE 2048 |
| #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); |
| void (*kentry)(unsigned long fdt_addr, void *vmlinux_addr); |
| }; |
| 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, unsigned int getline_timeout); |
| 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 cpm_console_init(void *devp, struct serial_console_data *scdp); |
| int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp); |
| int opal_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 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[]; |
| extern char _esm_blob_start[]; |
| extern char _esm_blob_end[]; |
| |
| static inline __attribute__((const)) |
| int __ilog2_u32(u32 n) |
| { |
| int bit; |
| asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n)); |
| return 31 - bit; |
| } |
| |
| long partial_decompress(void *inbuf, unsigned long input_size, void *outbuf, |
| unsigned long output_size, unsigned long skip); |
| |
| #endif /* _PPC_BOOT_OPS_H_ */ |