1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _PPC_REDBOOT_H
3#define _PPC_REDBOOT_H
4
5//=========================================================================
6// include/asm-ppc/redboot.h
7//   Copyright (c) 2002, 2003 Gary Thomas (<gary@mlbassoc.com>
8//   Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
9
10//
11// Board specific details, as provided by RedBoot
12//
13
14/* A Board Information structure that is given to a program when
15 * RedBoot starts it up.  Note: not all fields make sense for all
16 * architectures and it's up to the platform specific code to fill
17 * in the details.
18 */
19typedef struct bd_info {
20    unsigned int   bi_tag;        /* Should be 0x42444944 "BDID" */
21    unsigned int   bi_size;       /* Size of this structure */
22    unsigned int   bi_revision;   /* revision of this structure */
23    unsigned int   bi_bdate;      /* bootstrap date, i.e. 0x19971106 */
24    unsigned int   bi_memstart;   /* Memory start address */
25    unsigned int   bi_memsize;    /* Memory (end) size in bytes */
26    unsigned int   bi_intfreq;    /* Internal Freq, in Hz */
27    unsigned int   bi_busfreq;    /* Bus Freq, in Hz */
28    unsigned int   bi_cpmfreq;    /* CPM Freq, in Hz */
29    unsigned int   bi_brgfreq;    /* BRG Freq, in Hz */
30    unsigned int   bi_vco;        /* VCO Out from PLL */
31    unsigned int   bi_pci_freq;   /* PCI Freq, in Hz */
32    unsigned int   bi_baudrate;   /* Default console baud rate */
33    unsigned int   bi_immr;       /* IMMR when called from boot rom */
34    unsigned char  bi_enetaddr[6];
35    unsigned int   bi_flashbase;  /* Physical address of FLASH memory */
36    unsigned int   bi_flashsize;  /* Length of FLASH memory */
37    int            bi_flashwidth; /* Width (8,16,32,64) */
38    unsigned char *bi_cmdline;    /* Pointer to command line */
39    unsigned char  bi_esa[3][6];  /* Ethernet station addresses */
40    unsigned int   bi_ramdisk_begin, bi_ramdisk_end;
41    struct {                      /* Information about [main] video screen */
42        short x_res;              /*   Horizontal resolution in pixels */
43        short y_res;              /*   Vertical resolution in pixels */
44        short bpp;                /*   Bits/pixel */
45        short mode;               /*   Type of pixels (packed, indexed) */
46        unsigned long fb;         /*   Pointer to frame buffer (pixel) memory */
47    } bi_video;
48    void         (*bi_cputc)(char);   /* Write a character to the RedBoot console */
49    char         (*bi_cgetc)(void);   /* Read a character from the RedBoot console */
50    int          (*bi_ctstc)(void);   /* Test for input on the RedBoot console */
51} bd_t;
52
53#define BI_REV 0x0102    /* Version 1.02 */
54
55#define bi_pci_busfreq bi_pci_freq
56#define bi_immr_base   bi_immr
57#endif
58