Florian Fainelli
18 years ago
parent
be62105354
commit
21a2fb4a82
@ -1,161 +0,0 @@ |
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/*
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* prom.c
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********************************************************************** |
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* P . Sadik Oct 10, 2003 |
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* |
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* Started change log |
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* idt_cpu_freq is make a kernel configuration parameter |
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* idt_cpu_freq is exported so that other modules can use it. |
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* Code cleanup |
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********************************************************************** |
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* P. Sadik Oct 20, 2003 |
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* |
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* Removed NVRAM code from here, since they are already available under |
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* nvram directory. |
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* Added serial port initialisation. |
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********************************************************************** |
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********************************************************************** |
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* P. Sadik Oct 30, 2003 |
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* |
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* Added reset_cons_port |
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********************************************************************** |
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P.Christeas, 2005-2006 |
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Port to 2.6, add 2.6 cmdline parsing |
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*/ |
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#include <linux/autoconf.h> |
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#include <linux/init.h> |
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#include <linux/mm.h> |
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#include <linux/module.h> |
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#include <linux/string.h> |
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#include <linux/console.h> |
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#include <asm/bootinfo.h> |
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#include <linux/bootmem.h> |
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#include <linux/ioport.h> |
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#include <linux/blkdev.h> |
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#include <asm/rc32434/ddr.h> |
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#define PROM_ENTRY(x) (0xbfc00000+((x)*8)) |
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extern void __init setup_serial_port(void); |
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unsigned int idt_cpu_freq = 132000000; |
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EXPORT_SYMBOL(idt_cpu_freq); |
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unsigned int board_type = 500; |
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EXPORT_SYMBOL(board_type); |
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unsigned int gpio_bootup_state = 0; |
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EXPORT_SYMBOL(gpio_bootup_state); |
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char mips_mac_address[18] = "08:00:06:05:40:01"; |
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EXPORT_SYMBOL(mips_mac_address); |
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/* what to append to cmdline when button is [not] pressed */ |
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#define GPIO_INIT_NOBUTTON "" |
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#define GPIO_INIT_BUTTON " 2" |
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#ifdef CONFIG_MIKROTIK_RB500 |
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unsigned soft_reboot = 0; |
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EXPORT_SYMBOL(soft_reboot); |
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#endif |
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#define SR_NMI 0x00180000 /* NMI */ |
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#define SERIAL_SPEED_ENTRY 0x00000001 |
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#ifdef CONFIG_REMOTE_DEBUG |
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extern int remote_debug; |
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#endif |
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extern unsigned long mips_machgroup; |
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extern unsigned long mips_machtype; |
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#define FREQ_TAG "HZ=" |
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#define GPIO_TAG "gpio=" |
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#define KMAC_TAG "kmac=" |
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#define MEM_TAG "mem=" |
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#define BOARD_TAG "board=" |
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#define IGNORE_CMDLINE_MEM 1 |
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#define DEBUG_DDR |
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void parse_soft_settings(unsigned *ptr, unsigned size); |
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void parse_hard_settings(unsigned *ptr, unsigned size); |
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void __init prom_setup_cmdline(void); |
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void __init prom_init(void) |
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{ |
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DDR_t ddr = (DDR_t) DDR_VirtualAddress; /* define the pointer to the DDR registers */ |
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phys_t memsize = 0-ddr->ddrmask; |
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/* this should be the very first message, even before serial is properly initialized */ |
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prom_setup_cmdline(); |
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setup_serial_port(); |
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mips_machgroup = MACH_GROUP_MIKROTIK; |
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soft_reboot = read_c0_status() & SR_NMI; |
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pm_power_off = NULL; |
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/*
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* give all RAM to boot allocator, |
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* except for the first 0x400 and the last 0x200 bytes |
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*/ |
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add_memory_region(ddr->ddrbase + 0x400, memsize - 0x600, BOOT_MEM_RAM); |
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} |
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void prom_free_prom_memory(void) |
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{ |
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/* FIXME: STUB */ |
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} |
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void __init prom_setup_cmdline(void){ |
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char cmd_line[CL_SIZE]; |
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char *cp; |
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int prom_argc; |
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char **prom_argv, **prom_envp; |
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int i; |
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prom_argc = fw_arg0; |
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prom_argv = (char **) fw_arg1; |
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prom_envp = (char **) fw_arg2; |
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cp=cmd_line; |
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/* Note: it is common that parameters start at argv[1] and not argv[0],
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however, our elf loader starts at [0] */ |
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for(i=0;i<prom_argc;i++){ |
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if (strncmp(prom_argv[i], FREQ_TAG, sizeof(FREQ_TAG) - 1) == 0) { |
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idt_cpu_freq = simple_strtoul(prom_argv[i] + sizeof(FREQ_TAG) - 1, 0, 10); |
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continue; |
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} |
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#ifdef IGNORE_CMDLINE_MEM |
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/* parses out the "mem=xx" arg */ |
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if (strncmp(prom_argv[i], MEM_TAG, sizeof(MEM_TAG) - 1) == 0) { |
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continue; |
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} |
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#endif |
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if (i>0) *(cp++) = ' '; |
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if (strncmp(prom_argv[i], BOARD_TAG, sizeof(BOARD_TAG) - 1) == 0) { |
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board_type = simple_strtoul(prom_argv[i] + sizeof(BOARD_TAG) - 1, 0, 10); |
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} |
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if (strncmp(prom_argv[i], GPIO_TAG, sizeof(GPIO_TAG) - 1) == 0) { |
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gpio_bootup_state = simple_strtoul(prom_argv[i] + sizeof(GPIO_TAG) - 1, 0, 10); |
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} |
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strcpy(cp,prom_argv[i]); |
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cp+=strlen(prom_argv[i]); |
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} |
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i=strlen(arcs_cmdline); |
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if (i>0){ |
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*(cp++) = ' '; |
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strcpy(cp,arcs_cmdline); |
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cp+=strlen(arcs_cmdline); |
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} |
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if (gpio_bootup_state&0x02) |
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strcpy(cp,GPIO_INIT_NOBUTTON); |
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else |
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strcpy(cp,GPIO_INIT_BUTTON); |
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cmd_line[CL_SIZE-1] = '\0'; |
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strcpy(arcs_cmdline,cmd_line); |
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} |
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