diff options
Diffstat (limited to 'arch/mips/basler/excite/excite_prom.c')
| -rw-r--r-- | arch/mips/basler/excite/excite_prom.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/arch/mips/basler/excite/excite_prom.c b/arch/mips/basler/excite/excite_prom.c deleted file mode 100644 index 68d8bc597e3..00000000000 --- a/arch/mips/basler/excite/excite_prom.c +++ /dev/null | |||
| @@ -1,144 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) 2004, 2005 by Thomas Koeller (thomas.koeller@baslerweb.com) | ||
| 3 | * Based on the PMC-Sierra Yosemite board support by Ralf Baechle and | ||
| 4 | * Manish Lachwani. | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or modify | ||
| 7 | * it under the terms of the GNU General Public License as published by | ||
| 8 | * the Free Software Foundation; either version 2 of the License, or | ||
| 9 | * (at your option) any later version. | ||
| 10 | * | ||
| 11 | * This program is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 14 | * GNU General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU General Public License | ||
| 17 | * along with this program; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <linux/init.h> | ||
| 22 | #include <linux/sched.h> | ||
| 23 | #include <linux/mm.h> | ||
| 24 | #include <linux/delay.h> | ||
| 25 | #include <linux/smp.h> | ||
| 26 | #include <linux/module.h> | ||
| 27 | #include <asm/io.h> | ||
| 28 | #include <asm/pgtable.h> | ||
| 29 | #include <asm/processor.h> | ||
| 30 | #include <asm/reboot.h> | ||
| 31 | #include <asm/system.h> | ||
| 32 | #include <asm/bootinfo.h> | ||
| 33 | #include <asm/string.h> | ||
| 34 | |||
| 35 | #include <excite.h> | ||
| 36 | |||
| 37 | /* This struct is used by Redboot to pass arguments to the kernel */ | ||
| 38 | typedef struct | ||
| 39 | { | ||
| 40 | char *name; | ||
| 41 | char *val; | ||
| 42 | } t_env_var; | ||
| 43 | |||
| 44 | struct parmblock { | ||
| 45 | t_env_var memsize; | ||
| 46 | t_env_var modetty0; | ||
| 47 | t_env_var ethaddr; | ||
| 48 | t_env_var env_end; | ||
| 49 | char *argv[2]; | ||
| 50 | char text[0]; | ||
| 51 | }; | ||
| 52 | |||
| 53 | static unsigned int prom_argc; | ||
| 54 | static const char ** prom_argv; | ||
| 55 | static const t_env_var * prom_env; | ||
| 56 | |||
| 57 | static void prom_halt(void) __attribute__((noreturn)); | ||
| 58 | static void prom_exit(void) __attribute__((noreturn)); | ||
| 59 | |||
| 60 | |||
| 61 | |||
| 62 | const char *get_system_type(void) | ||
| 63 | { | ||
| 64 | return "Basler eXcite"; | ||
| 65 | } | ||
| 66 | |||
| 67 | /* | ||
| 68 | * Halt the system | ||
| 69 | */ | ||
| 70 | static void prom_halt(void) | ||
| 71 | { | ||
| 72 | printk(KERN_NOTICE "\n** System halted.\n"); | ||
| 73 | while (1) | ||
| 74 | asm volatile ( | ||
| 75 | "\t.set\tmips3\n" | ||
| 76 | "\twait\n" | ||
| 77 | "\t.set\tmips0\n" | ||
| 78 | ); | ||
| 79 | } | ||
| 80 | |||
| 81 | /* | ||
| 82 | * Reset the CPU and re-enter Redboot | ||
| 83 | */ | ||
| 84 | static void prom_exit(void) | ||
| 85 | { | ||
| 86 | unsigned int i; | ||
| 87 | volatile unsigned char * const flg = | ||
| 88 | (volatile unsigned char *) (EXCITE_ADDR_FPGA + EXCITE_FPGA_DPR); | ||
| 89 | |||
| 90 | /* Clear the watchdog reset flag, set the reboot flag */ | ||
| 91 | *flg &= ~0x01; | ||
| 92 | *flg |= 0x80; | ||
| 93 | |||
| 94 | for (i = 0; i < 10; i++) { | ||
| 95 | *(volatile unsigned char *) (EXCITE_ADDR_FPGA + EXCITE_FPGA_SYSCTL) = 0x02; | ||
| 96 | iob(); | ||
| 97 | mdelay(1000); | ||
| 98 | } | ||
| 99 | |||
| 100 | printk(KERN_NOTICE "Reset failed\n"); | ||
| 101 | prom_halt(); | ||
| 102 | } | ||
| 103 | |||
| 104 | static const char __init *prom_getenv(char *name) | ||
| 105 | { | ||
| 106 | const t_env_var * p; | ||
| 107 | for (p = prom_env; p->name != NULL; p++) | ||
| 108 | if(strcmp(name, p->name) == 0) | ||
| 109 | break; | ||
| 110 | return p->val; | ||
| 111 | } | ||
| 112 | |||
| 113 | /* | ||
| 114 | * Init routine which accepts the variables from Redboot | ||
| 115 | */ | ||
| 116 | void __init prom_init(void) | ||
| 117 | { | ||
| 118 | const struct parmblock * const pb = (struct parmblock *) fw_arg2; | ||
| 119 | |||
| 120 | prom_argc = fw_arg0; | ||
| 121 | prom_argv = (const char **) fw_arg1; | ||
| 122 | prom_env = &pb->memsize; | ||
| 123 | |||
| 124 | /* Callbacks for halt, restart */ | ||
| 125 | _machine_restart = (void (*)(char *)) prom_exit; | ||
| 126 | _machine_halt = prom_halt; | ||
| 127 | |||
| 128 | #ifdef CONFIG_32BIT | ||
| 129 | /* copy command line */ | ||
| 130 | strcpy(arcs_cmdline, prom_argv[1]); | ||
| 131 | memsize = simple_strtol(prom_getenv("memsize"), NULL, 16); | ||
| 132 | strcpy(modetty, prom_getenv("modetty0")); | ||
| 133 | #endif /* CONFIG_32BIT */ | ||
| 134 | |||
| 135 | #ifdef CONFIG_64BIT | ||
| 136 | # error 64 bit support not implemented | ||
| 137 | #endif /* CONFIG_64BIT */ | ||
| 138 | } | ||
| 139 | |||
| 140 | /* This is called from free_initmem(), so we need to provide it */ | ||
| 141 | void __init prom_free_prom_memory(void) | ||
| 142 | { | ||
| 143 | /* Nothing to do */ | ||
| 144 | } | ||
