mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-25 19:38:52 +09:00
298 lines
8.3 KiB
C
298 lines
8.3 KiB
C
/* OpenProm defines mainly taken from linux kernel header files
|
|
*
|
|
* openprom.h: Prom structures and defines for access to the OPENBOOT
|
|
* prom routines and data areas.
|
|
*
|
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
|
* Copyright (C) 2007 Daniel Hellstrom (daniel@gaisler.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef __SPARC_OPENPROM_H__
|
|
#define __SPARC_OPENPROM_H__
|
|
|
|
/* Empirical constants... */
|
|
#define LINUX_OPPROM_MAGIC 0x10010407
|
|
|
|
#ifndef __ASSEMBLY__
|
|
/* V0 prom device operations. */
|
|
struct linux_dev_v0_funcs {
|
|
int (*v0_devopen) (char *device_str);
|
|
int (*v0_devclose) (int dev_desc);
|
|
int (*v0_rdblkdev) (int dev_desc, int num_blks, int blk_st, char *buf);
|
|
int (*v0_wrblkdev) (int dev_desc, int num_blks, int blk_st, char *buf);
|
|
int (*v0_wrnetdev) (int dev_desc, int num_bytes, char *buf);
|
|
int (*v0_rdnetdev) (int dev_desc, int num_bytes, char *buf);
|
|
int (*v0_rdchardev) (int dev_desc, int num_bytes, int dummy, char *buf);
|
|
int (*v0_wrchardev) (int dev_desc, int num_bytes, int dummy, char *buf);
|
|
int (*v0_seekdev) (int dev_desc, long logical_offst, int from);
|
|
};
|
|
|
|
/* V2 and later prom device operations. */
|
|
struct linux_dev_v2_funcs {
|
|
int (*v2_inst2pkg) (int d); /* Convert ihandle to phandle */
|
|
char *(*v2_dumb_mem_alloc) (char *va, unsigned sz);
|
|
void (*v2_dumb_mem_free) (char *va, unsigned sz);
|
|
|
|
/* To map devices into virtual I/O space. */
|
|
char *(*v2_dumb_mmap) (char *virta, int which_io, unsigned paddr,
|
|
unsigned sz);
|
|
void (*v2_dumb_munmap) (char *virta, unsigned size);
|
|
|
|
int (*v2_dev_open) (char *devpath);
|
|
void (*v2_dev_close) (int d);
|
|
int (*v2_dev_read) (int d, char *buf, int nbytes);
|
|
int (*v2_dev_write) (int d, char *buf, int nbytes);
|
|
int (*v2_dev_seek) (int d, int hi, int lo);
|
|
|
|
/* Never issued (multistage load support) */
|
|
void (*v2_wheee2) (void);
|
|
void (*v2_wheee3) (void);
|
|
};
|
|
|
|
struct linux_mlist_v0 {
|
|
struct linux_mlist_v0 *theres_more;
|
|
char *start_adr;
|
|
unsigned num_bytes;
|
|
};
|
|
|
|
struct linux_mem_v0 {
|
|
struct linux_mlist_v0 **v0_totphys;
|
|
struct linux_mlist_v0 **v0_prommap;
|
|
struct linux_mlist_v0 **v0_available; /* What we can use */
|
|
};
|
|
|
|
/* Arguments sent to the kernel from the boot prompt. */
|
|
struct linux_arguments_v0 {
|
|
char *argv[8];
|
|
char args[100];
|
|
char boot_dev[2];
|
|
int boot_dev_ctrl;
|
|
int boot_dev_unit;
|
|
int dev_partition;
|
|
char *kernel_file_name;
|
|
void *aieee1; /* XXX */
|
|
};
|
|
|
|
/* V2 and up boot things. */
|
|
struct linux_bootargs_v2 {
|
|
char **bootpath;
|
|
char **bootargs;
|
|
int *fd_stdin;
|
|
int *fd_stdout;
|
|
};
|
|
|
|
/* The top level PROM vector. */
|
|
struct linux_romvec {
|
|
/* Version numbers. */
|
|
unsigned int pv_magic_cookie;
|
|
unsigned int pv_romvers;
|
|
unsigned int pv_plugin_revision;
|
|
unsigned int pv_printrev;
|
|
|
|
/* Version 0 memory descriptors. */
|
|
struct linux_mem_v0 pv_v0mem;
|
|
|
|
/* Node operations. */
|
|
struct linux_nodeops *pv_nodeops;
|
|
|
|
char **pv_bootstr;
|
|
struct linux_dev_v0_funcs pv_v0devops;
|
|
|
|
char *pv_stdin;
|
|
char *pv_stdout;
|
|
#define PROMDEV_KBD 0 /* input from keyboard */
|
|
#define PROMDEV_SCREEN 0 /* output to screen */
|
|
#define PROMDEV_TTYA 1 /* in/out to ttya */
|
|
#define PROMDEV_TTYB 2 /* in/out to ttyb */
|
|
|
|
/* Blocking getchar/putchar. NOT REENTRANT! (grr) */
|
|
int (*pv_getchar) (void);
|
|
void (*pv_putchar) (int ch);
|
|
|
|
/* Non-blocking variants. */
|
|
int (*pv_nbgetchar) (void);
|
|
int (*pv_nbputchar) (int ch);
|
|
|
|
void (*pv_putstr) (char *str, int len);
|
|
|
|
/* Miscellany. */
|
|
void (*pv_reboot) (char *bootstr);
|
|
void (*pv_printf) (__const__ char *fmt, ...);
|
|
void (*pv_abort) (void);
|
|
__volatile__ int *pv_ticks;
|
|
void (*pv_halt) (void);
|
|
void (**pv_synchook) (void);
|
|
|
|
/* Evaluate a forth string, not different proto for V0 and V2->up. */
|
|
union {
|
|
void (*v0_eval) (int len, char *str);
|
|
void (*v2_eval) (char *str);
|
|
} pv_fortheval;
|
|
|
|
struct linux_arguments_v0 **pv_v0bootargs;
|
|
|
|
/* Get ether address. */
|
|
unsigned int (*pv_enaddr) (int d, char *enaddr);
|
|
|
|
struct linux_bootargs_v2 pv_v2bootargs;
|
|
struct linux_dev_v2_funcs pv_v2devops;
|
|
|
|
int filler[15];
|
|
|
|
/* This one is sun4c/sun4 only. */
|
|
void (*pv_setctxt) (int ctxt, char *va, int pmeg);
|
|
|
|
/* Prom version 3 Multiprocessor routines. This stuff is crazy.
|
|
* No joke. Calling these when there is only one cpu probably
|
|
* crashes the machine, have to test this. :-)
|
|
*/
|
|
|
|
/* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
|
|
* 'thiscontext' executing at address 'prog_counter'
|
|
*/
|
|
int (*v3_cpustart) (unsigned int whichcpu, int ctxtbl_ptr,
|
|
int thiscontext, char *prog_counter);
|
|
|
|
/* v3_cpustop() will cause cpu 'whichcpu' to stop executing
|
|
* until a resume cpu call is made.
|
|
*/
|
|
int (*v3_cpustop) (unsigned int whichcpu);
|
|
|
|
/* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
|
|
* resume cpu call is made.
|
|
*/
|
|
int (*v3_cpuidle) (unsigned int whichcpu);
|
|
|
|
/* v3_cpuresume() will resume processor 'whichcpu' executing
|
|
* starting with whatever 'pc' and 'npc' were left at the
|
|
* last 'idle' or 'stop' call.
|
|
*/
|
|
int (*v3_cpuresume) (unsigned int whichcpu);
|
|
};
|
|
|
|
/* Routines for traversing the prom device tree. */
|
|
struct linux_nodeops {
|
|
int (*no_nextnode) (int node);
|
|
int (*no_child) (int node);
|
|
int (*no_proplen) (int node, char *name);
|
|
int (*no_getprop) (int node, char *name, char *val);
|
|
int (*no_setprop) (int node, char *name, char *val, int len);
|
|
char *(*no_nextprop) (int node, char *name);
|
|
};
|
|
|
|
/* More fun PROM structures for device probing. */
|
|
#define PROMREG_MAX 16
|
|
#define PROMVADDR_MAX 16
|
|
#define PROMINTR_MAX 15
|
|
|
|
struct linux_prom_registers {
|
|
unsigned int which_io; /* is this in OBIO space? */
|
|
unsigned int phys_addr; /* The physical address of this register */
|
|
unsigned int reg_size; /* How many bytes does this register take up? */
|
|
};
|
|
|
|
struct linux_prom_irqs {
|
|
int pri; /* IRQ priority */
|
|
int vector; /* This is foobar, what does it do? */
|
|
};
|
|
|
|
/* Element of the "ranges" vector */
|
|
struct linux_prom_ranges {
|
|
unsigned int ot_child_space;
|
|
unsigned int ot_child_base; /* Bus feels this */
|
|
unsigned int ot_parent_space;
|
|
unsigned int ot_parent_base; /* CPU looks from here */
|
|
unsigned int or_size;
|
|
};
|
|
|
|
/* Ranges and reg properties are a bit different for PCI. */
|
|
struct linux_prom_pci_registers {
|
|
/*
|
|
* We don't know what information this field contain.
|
|
* We guess, PCI device function is in bits 15:8
|
|
* So, ...
|
|
*/
|
|
unsigned int which_io; /* Let it be which_io */
|
|
|
|
unsigned int phys_hi;
|
|
unsigned int phys_lo;
|
|
|
|
unsigned int size_hi;
|
|
unsigned int size_lo;
|
|
};
|
|
|
|
struct linux_prom_pci_ranges {
|
|
unsigned int child_phys_hi; /* Only certain bits are encoded here. */
|
|
unsigned int child_phys_mid;
|
|
unsigned int child_phys_lo;
|
|
|
|
unsigned int parent_phys_hi;
|
|
unsigned int parent_phys_lo;
|
|
|
|
unsigned int size_hi;
|
|
unsigned int size_lo;
|
|
};
|
|
|
|
struct linux_prom_pci_assigned_addresses {
|
|
unsigned int which_io;
|
|
|
|
unsigned int phys_hi;
|
|
unsigned int phys_lo;
|
|
|
|
unsigned int size_hi;
|
|
unsigned int size_lo;
|
|
};
|
|
|
|
struct linux_prom_ebus_ranges {
|
|
unsigned int child_phys_hi;
|
|
unsigned int child_phys_lo;
|
|
|
|
unsigned int parent_phys_hi;
|
|
unsigned int parent_phys_mid;
|
|
unsigned int parent_phys_lo;
|
|
|
|
unsigned int size;
|
|
};
|
|
|
|
/* Offset into the EEPROM where the id PROM is located on the 4c */
|
|
#define IDPROM_OFFSET 0x7d8
|
|
|
|
/* On sun4m; physical. */
|
|
/* MicroSPARC(-II) does not decode 31rd bit, but it works. */
|
|
#define IDPROM_OFFSET_M 0xfd8
|
|
|
|
struct idprom {
|
|
unsigned char id_format; /* Format identifier (always 0x01) */
|
|
unsigned char id_machtype; /* Machine type */
|
|
unsigned char id_ethaddr[6]; /* Hardware ethernet address */
|
|
long id_date; /* Date of manufacture */
|
|
unsigned int id_sernum:24; /* Unique serial number */
|
|
unsigned char id_cksum; /* Checksum - xor of the data bytes */
|
|
unsigned char reserved[16];
|
|
};
|
|
|
|
extern struct idprom *idprom;
|
|
extern void idprom_init(void);
|
|
|
|
#define IDPROM_SIZE (sizeof(struct idprom))
|
|
|
|
#endif /* !(__ASSEMBLY__) */
|
|
|
|
#endif
|