diff options
Diffstat (limited to 'arch/ppc/boot/simple/pibs.c')
| -rw-r--r-- | arch/ppc/boot/simple/pibs.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/ppc/boot/simple/pibs.c b/arch/ppc/boot/simple/pibs.c new file mode 100644 index 000000000000..1348740e503f --- /dev/null +++ b/arch/ppc/boot/simple/pibs.c @@ -0,0 +1,103 @@ +/* + * 2004-2005 (c) MontaVista, Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/types.h> +#include <linux/config.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <asm/ppcboot.h> +#include <asm/ibm4xx.h> + +extern unsigned long decompress_kernel(unsigned long load_addr, int num_words, + unsigned long cksum); + +/* We need to make sure that this is before the images to ensure + * that it's in a mapped location. - Tom */ +bd_t hold_resid_buf __attribute__ ((__section__ (".data.boot"))); +bd_t *hold_residual = &hold_resid_buf; + +/* String functions lifted from lib/vsprintf.c and lib/ctype.c */ +unsigned char _ctype[] = { +_C,_C,_C,_C,_C,_C,_C,_C, /* 0-7 */ +_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C, /* 8-15 */ +_C,_C,_C,_C,_C,_C,_C,_C, /* 16-23 */ +_C,_C,_C,_C,_C,_C,_C,_C, /* 24-31 */ +_S|_SP,_P,_P,_P,_P,_P,_P,_P, /* 32-39 */ +_P,_P,_P,_P,_P,_P,_P,_P, /* 40-47 */ +_D,_D,_D,_D,_D,_D,_D,_D, /* 48-55 */ +_D,_D,_P,_P,_P,_P,_P,_P, /* 56-63 */ +_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U, /* 64-71 */ +_U,_U,_U,_U,_U,_U,_U,_U, /* 72-79 */ +_U,_U,_U,_U,_U,_U,_U,_U, /* 80-87 */ +_U,_U,_U,_P,_P,_P,_P,_P, /* 88-95 */ +_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L, /* 96-103 */ +_L,_L,_L,_L,_L,_L,_L,_L, /* 104-111 */ +_L,_L,_L,_L,_L,_L,_L,_L, /* 112-119 */ +_L,_L,_L,_P,_P,_P,_P,_C, /* 120-127 */ +0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 128-143 */ +0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 144-159 */ +_S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 160-175 */ +_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 176-191 */ +_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U, /* 192-207 */ +_U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L, /* 208-223 */ +_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L, /* 224-239 */ +_L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L}; /* 240-255 */ + +/** + * simple_strtoull - convert a string to an unsigned long long + * @cp: The start of the string + * @endp: A pointer to the end of the parsed string will be placed here + * @base: The number base to use + */ +unsigned long long simple_strtoull(const char *cp,char **endp,unsigned int base) +{ + unsigned long long result = 0,value; + + if (!base) { + base = 10; + if (*cp == '0') { + base = 8; + cp++; + if ((toupper(*cp) == 'X') && isxdigit(cp[1])) { + cp++; + base = 16; + } + } + } else if (base == 16) { + if (cp[0] == '0' && toupper(cp[1]) == 'X') + cp += 2; + } + while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp) + ? toupper(*cp) : *cp)-'A'+10) < base) { + result = result*base + value; + cp++; + } + if (endp) + *endp = (char *)cp; + return result; +} + +void * +load_kernel(unsigned long load_addr, int num_words, unsigned long cksum, + void *ign1, void *ign2) +{ + unsigned long long mac64; + + decompress_kernel(load_addr, num_words, cksum); + + mac64 = simple_strtoull((char *)PIBS_MAC_BASE, 0, 16); + memcpy(hold_residual->bi_enetaddr, (char *)&mac64+2, 6); +#ifdef CONFIG_440GX + mac64 = simple_strtoull((char *)(PIBS_MAC_BASE+PIBS_MAC_OFFSET), 0, 16); + memcpy(hold_residual->bi_enet1addr, (char *)&mac64+2, 6); + mac64 = simple_strtoull((char *)(PIBS_MAC_BASE+PIBS_MAC_OFFSET*2), 0, 16); + memcpy(hold_residual->bi_enet2addr, (char *)&mac64+2, 6); + mac64 = simple_strtoull((char *)(PIBS_MAC_BASE+PIBS_MAC_OFFSET*3), 0, 16); + memcpy(hold_residual->bi_enet3addr, (char *)&mac64+2, 6); +#endif + return (void *)hold_residual; +} |