1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _PPC_REDBOOT_H 3*4882a593Smuzhiyun #define _PPC_REDBOOT_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun //========================================================================= 6*4882a593Smuzhiyun // include/asm-ppc/redboot.h 7*4882a593Smuzhiyun // Copyright (c) 2002, 2003 Gary Thomas (<gary@mlbassoc.com> 8*4882a593Smuzhiyun // Copyright (c) 1997 Dan Malek (dmalek@jlc.net) 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun // 11*4882a593Smuzhiyun // Board specific details, as provided by RedBoot 12*4882a593Smuzhiyun // 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* A Board Information structure that is given to a program when 15*4882a593Smuzhiyun * RedBoot starts it up. Note: not all fields make sense for all 16*4882a593Smuzhiyun * architectures and it's up to the platform specific code to fill 17*4882a593Smuzhiyun * in the details. 18*4882a593Smuzhiyun */ 19*4882a593Smuzhiyun typedef struct bd_info { 20*4882a593Smuzhiyun unsigned int bi_tag; /* Should be 0x42444944 "BDID" */ 21*4882a593Smuzhiyun unsigned int bi_size; /* Size of this structure */ 22*4882a593Smuzhiyun unsigned int bi_revision; /* revision of this structure */ 23*4882a593Smuzhiyun unsigned int bi_bdate; /* bootstrap date, i.e. 0x19971106 */ 24*4882a593Smuzhiyun unsigned int bi_memstart; /* Memory start address */ 25*4882a593Smuzhiyun unsigned int bi_memsize; /* Memory (end) size in bytes */ 26*4882a593Smuzhiyun unsigned int bi_intfreq; /* Internal Freq, in Hz */ 27*4882a593Smuzhiyun unsigned int bi_busfreq; /* Bus Freq, in Hz */ 28*4882a593Smuzhiyun unsigned int bi_cpmfreq; /* CPM Freq, in Hz */ 29*4882a593Smuzhiyun unsigned int bi_brgfreq; /* BRG Freq, in Hz */ 30*4882a593Smuzhiyun unsigned int bi_vco; /* VCO Out from PLL */ 31*4882a593Smuzhiyun unsigned int bi_pci_freq; /* PCI Freq, in Hz */ 32*4882a593Smuzhiyun unsigned int bi_baudrate; /* Default console baud rate */ 33*4882a593Smuzhiyun unsigned int bi_immr; /* IMMR when called from boot rom */ 34*4882a593Smuzhiyun unsigned char bi_enetaddr[6]; 35*4882a593Smuzhiyun unsigned int bi_flashbase; /* Physical address of FLASH memory */ 36*4882a593Smuzhiyun unsigned int bi_flashsize; /* Length of FLASH memory */ 37*4882a593Smuzhiyun int bi_flashwidth; /* Width (8,16,32,64) */ 38*4882a593Smuzhiyun unsigned char *bi_cmdline; /* Pointer to command line */ 39*4882a593Smuzhiyun unsigned char bi_esa[3][6]; /* Ethernet station addresses */ 40*4882a593Smuzhiyun unsigned int bi_ramdisk_begin, bi_ramdisk_end; 41*4882a593Smuzhiyun struct { /* Information about [main] video screen */ 42*4882a593Smuzhiyun short x_res; /* Horizontal resolution in pixels */ 43*4882a593Smuzhiyun short y_res; /* Vertical resolution in pixels */ 44*4882a593Smuzhiyun short bpp; /* Bits/pixel */ 45*4882a593Smuzhiyun short mode; /* Type of pixels (packed, indexed) */ 46*4882a593Smuzhiyun unsigned long fb; /* Pointer to frame buffer (pixel) memory */ 47*4882a593Smuzhiyun } bi_video; 48*4882a593Smuzhiyun void (*bi_cputc)(char); /* Write a character to the RedBoot console */ 49*4882a593Smuzhiyun char (*bi_cgetc)(void); /* Read a character from the RedBoot console */ 50*4882a593Smuzhiyun int (*bi_ctstc)(void); /* Test for input on the RedBoot console */ 51*4882a593Smuzhiyun } bd_t; 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #define BI_REV 0x0102 /* Version 1.02 */ 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #define bi_pci_busfreq bi_pci_freq 56*4882a593Smuzhiyun #define bi_immr_base bi_immr 57*4882a593Smuzhiyun #endif 58