/******************************************************************** * * Unless otherwise specified, Copyright (C) 2004-2005 Barco Control Rooms * * $Source: /home/services/cvs/firmware/ppc/u-boot-1.1.2/board/barco/barco.c,v $ * $Revision: 1.4 $ * $Author: mleeman $ * $Date: 2005/03/02 16:40:20 $ * * Last ChangeLog Entry * $Log: barco.c,v $ * Revision 1.4 2005/03/02 16:40:20 mleeman * remove empty labels (3.4 complains) * * Revision 1.3 2005/02/21 12:48:58 mleeman * update of copyright years (feedback wd) * * Revision 1.2 2005/02/21 10:10:53 mleeman * - split up switch statement to a function call (Linux kernel coding guidelines) * ( feedback wd) * * Revision 1.1 2005/02/14 09:31:07 mleeman * renaming of files * * Revision 1.1 2005/02/14 09:23:46 mleeman * - moved 'barcohydra' directory to a more generic barco; since we will be * supporting and adding multiple boards * * Revision 1.3 2005/02/10 13:57:32 mleeman * fixed flash corruption: I should exit from the moment I find the correct value * * Revision 1.2 2005/02/09 12:56:23 mleeman * add generic header to track changes in sources * * *******************************************************************/ /* * (C) Copyright 2004 * Marc Leeman * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include #include #include #include #include "config.h" #include "barco_svc.h" #define TRY_WORKING (3) #define BOOT_DEFAULT (2) #define BOOT_WORKING (1) int checkboard (void) { /*TODO: Check processor type */ puts ( "Board: Streaming Video Card for Hydra systems " #ifdef CONFIG_MPC8240 "8240" #endif #ifdef CONFIG_MPC8245 "8245" #endif " Unity ##Test not implemented yet##\n"); return 0; } phys_size_t initdram (int board_type) { long size; long new_bank0_end; long mear1; long emear1; size = get_ram_size (CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE); new_bank0_end = size - 1; mear1 = mpc824x_mpc107_getreg (MEAR1); emear1 = mpc824x_mpc107_getreg (EMEAR1); mear1 = (mear1 & 0xFFFFFF00) | ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT); emear1 = (emear1 & 0xFFFFFF00) | ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT); mpc824x_mpc107_setreg (MEAR1, mear1); mpc824x_mpc107_setreg (EMEAR1, emear1); return (size); } /* * Initialize PCI Devices, report devices found. */ #ifndef CONFIG_PCI_PNP static struct pci_config_table pci_barcohydra_config_table[] = { { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID, pci_cfgfunc_config_device, { PCI_ENET0_IOADDR, PCI_ENET0_MEMADDR, PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x10, PCI_ANY_ID, pci_cfgfunc_config_device, { PCI_ENET1_IOADDR, PCI_ENET1_MEMADDR, PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, { } }; #endif struct pci_controller hose = { #ifndef CONFIG_PCI_PNP config_table: pci_barcohydra_config_table, #endif }; void pci_init_board (void) { pci_mpc824x_init (&hose); } int write_flash (char *addr, char value) { char *adr = (char *)0xFF800000; int cnt = 0; char status,oldstatus; *(adr+0x55) = 0xAA; udelay (1); *(adr+0xAA) = 0x55; udelay (1); *(adr+0x55) = 0xA0; udelay (1); *addr = value; status = *addr; do { oldstatus = status; status = *addr; if ((oldstatus & 0x40) == (status & 0x40)) { return 4; } cnt++; if (cnt > 10000) { return 2; } } while ( (status & 0x20) == 0 ); oldstatus = *addr; status = *addr; if ((oldstatus & 0x40) == (status & 0x40)) { return 0; } else { *(adr+0x55) = 0xF0; return 1; } } unsigned update_flash (unsigned char *buf) { switch ((*buf) & 0x3) { case TRY_WORKING: printf ("found 3 and converted it to 2\n"); write_flash ((char *)buf, (*buf) & 0xFE); *((unsigned char *)0xFF800000) = 0xF0; udelay (100); printf ("buf [%#010x] %#010x\n", (unsigned)buf, (*buf)); /* XXX - fall through??? */ case BOOT_WORKING : return BOOT_WORKING; } return BOOT_DEFAULT; } unsigned scan_flash (void) { char section[] = "kernel"; int cfgFileLen = (CONFIG_SYS_FLASH_ERASE_SECTOR_LENGTH >> 1); int sectionPtr = 0; int foundItem = 0; /* 0: None, 1: section found, 2: "=" found */ int bufPtr; unsigned char *buf; buf = (unsigned char*)(CONFIG_SYS_FLASH_RANGE_BASE + CONFIG_SYS_FLASH_RANGE_SIZE \ - CONFIG_SYS_FLASH_ERASE_SECTOR_LENGTH); for (bufPtr = 0; bufPtr < cfgFileLen; ++bufPtr) { if ((buf[bufPtr]==0xFF) && (*(int*)(buf+bufPtr)==0xFFFFFFFF)) { return BOOT_DEFAULT; } /* This is the scanning loop, we try to find a particular * quoted value */ switch (foundItem) { case 0: if ((section[sectionPtr] == 0)) { ++foundItem; } else if (buf[bufPtr] == section[sectionPtr]) { ++sectionPtr; } else { sectionPtr = 0; } break; case 1: ++foundItem; break; case 2: ++foundItem; break; case 3: default: return update_flash (&buf[bufPtr - 1]); } } printf ("Failed to read %s\n",section); return BOOT_DEFAULT; } TSBootInfo* find_boot_info (void) { unsigned bootimage = scan_flash (); TSBootInfo* info = (TSBootInfo*)malloc (sizeof(TSBootInfo)); switch (bootimage) { case TRY_WORKING: info->address = CONFIG_SYS_WORKING_KERNEL_ADDRESS; break; case BOOT_WORKING : info->address = CONFIG_SYS_WORKING_KERNEL_ADDRESS; break; case BOOT_DEFAULT: default: info->address= CONFIG_SYS_DEFAULT_KERNEL_ADDRESS; } info->size = *((unsigned int *)(info->address )); return info; } void barcobcd_boot (void) { TSBootInfo* start; char *bootm_args[2]; char *buf; int cnt; extern int do_bootm (cmd_tbl_t *, int, int, char *[]); buf = (char *)(0x00800000); /* make certain there are enough chars to print the command line here! */ bootm_args[0] = (char *)malloc (16*sizeof(char)); bootm_args[1] = (char *)malloc (16*sizeof(char)); start = find_boot_info (); printf ("Booting kernel at address %#10x with size %#10x\n", start->address, start->size); /* give length of the kernel image to bootm */ sprintf (bootm_args[0],"%x",start->size); /* give address of the kernel image to bootm */ sprintf (bootm_args[1],"%x",(unsigned)buf); printf ("flash address: %#10x\n",start->address+8); printf ("buf address: %#10x\n",(unsigned)buf); /* aha, we reserve 8 bytes here... */ for (cnt = 0; cnt < start->size ; cnt++) { buf[cnt] = ((char *)start->address)[cnt+8]; } /* initialise RAM memory */ *((unsigned int *)0xFEC00000) = 0x00141A98; do_bootm (NULL,0,2,bootm_args); } int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { #if 0 if (argc > 1) { cmd_usage(cmdtp); return 1; } #endif barcobcd_boot (); return 0; } /* Currently, boot_working and boot_default are the same command. This is * left in here to see what we'll do in the future */ U_BOOT_CMD ( try_working, 1, 1, barcobcd_boot_image, "check flash value and boot the appropriate image", "" ); U_BOOT_CMD ( boot_working, 1, 1, barcobcd_boot_image, "check flash value and boot the appropriate image", "" ); U_BOOT_CMD ( boot_default, 1, 1, barcobcd_boot_image, "check flash value and boot the appropriate image", "" ); /* * We are not using serial communication, so just provide empty functions */ int serial_init (void) { return 0; } void serial_setbrg (void) { return; } void serial_putc (const char c) { return; } void serial_puts (const char *c) { return; } void serial_addr (unsigned int i) { return; } int serial_getc (void) { return 0; } int serial_tstc (void) { return 0; } unsigned long post_word_load (void) { return 0l; } void post_word_store (unsigned long val) { return; }