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 */
19 typedef 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
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