diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2009-01-02 21:15:25 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-01-02 21:15:25 -0800 |
commit | 7c59d28d0e798fff1ebfedcf7821cbd5513091bd (patch) | |
tree | f4d14de632207742372bdd3e57f0b014527d014a /arch/sparc/include/asm/openprom.h | |
parent | 640cc590bd6112424f4c248fe839af28a06b54c4 (diff) | |
download | linux-7c59d28d0e798fff1ebfedcf7821cbd5513091bd.tar.bz2 |
sparc: unify openprom.h
After the preparational steps the unification was simple.
The linux_prom_pci_registers definition did not look like
it could be unified at first look since the structure is assigned
using prop_getproperty() / of_get_property() so the structure
is assumed to come direct form the prom.
The LINUX_OPPROM_MAGIC was kept even if it is not used by the kernel
on the assumption that userspace may require it.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/openprom.h')
-rw-r--r-- | arch/sparc/include/asm/openprom.h | 277 |
1 files changed, 273 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h index aaeae905ed3f..963e1a45c35f 100644 --- a/arch/sparc/include/asm/openprom.h +++ b/arch/sparc/include/asm/openprom.h @@ -1,8 +1,277 @@ -#ifndef ___ASM_SPARC_OPENPROM_H -#define ___ASM_SPARC_OPENPROM_H +#ifndef __SPARC_OPENPROM_H +#define __SPARC_OPENPROM_H + +/* openprom.h: Prom structures and defines for access to the OPENBOOT + * prom routines and data areas. + * + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) + */ + +/* 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; + unsigned int 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, const char *name); + int (*no_getprop)(int node, const char *name, char *val); + int (*no_setprop)(int node, const char *name, char *val, int len); + char * (*no_nextprop)(int node, char *name); +}; + +/* More fun PROM structures for device probing. */ #if defined(__sparc__) && defined(__arch64__) -#include <asm/openprom_64.h> +#define PROMREG_MAX 24 +#define PROMVADDR_MAX 16 +#define PROMINTR_MAX 32 #else -#include <asm/openprom_32.h> +#define PROMREG_MAX 16 +#define PROMVADDR_MAX 16 +#define PROMINTR_MAX 15 #endif + +struct linux_prom_registers { + unsigned int which_io; /* hi part of physical address */ + unsigned int phys_addr; /* The physical address of this register */ + unsigned int reg_size; /* How many bytes does this register take up? */ +}; + +struct linux_prom64_registers { + unsigned long phys_addr; + unsigned long reg_size; +}; + +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. + */ +#if defined(__sparc__) && defined(__arch64__) +struct linux_prom_pci_registers { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; +#else +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; +}; + #endif + +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_intmap { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + + unsigned int interrupt; + + int cnode; + unsigned int cinterrupt; +}; + +struct linux_prom_pci_intmask { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + unsigned int interrupt; +}; + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC_OPENPROM_H) */ |