diff options
Diffstat (limited to 'board/eric/eric.c')
| -rw-r--r-- | board/eric/eric.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/board/eric/eric.c b/board/eric/eric.c deleted file mode 100644 index d431204..0000000 --- a/board/eric/eric.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * (C) Copyright 2001 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 <common.h> -#include <i2c.h> -#include "eric.h" -#include <asm/processor.h> - -#define PPC405GP_GPIO0_OR 0xef600700 /* GPIO Output */ -#define PPC405GP_GPIO0_TCR 0xef600704 /* GPIO Three-State Control */ -#define PPC405GP_GPIO0_ODR 0xef600718 /* GPIO Open Drain */ -#define PPC405GP_GPIO0_IR 0xef60071c /* GPIO Input */ - -void sdram_init(void); - -int board_early_init_f (void) -{ - - /*-------------------------------------------------------------------------+ - | Interrupt controller setup for the ERIC board. - | Note: IRQ 0-15 405GP internally generated; active high; level sensitive - | IRQ 16 405GP internally generated; active low; level sensitive - | IRQ 17-24 RESERVED - | IRQ 25 (EXT IRQ 0) FLASH; active low; level sensitive - | IRQ 26 (EXT IRQ 1) PHY ; active low; level sensitive - | IRQ 27 (EXT IRQ 2) HOST FAIL, active low; level sensitive - | indicates NO Power or HOST RESET active - | check GPIO7 (HOST RESET#) and GPIO8 (NO Power#) - | for real IRQ source - | IRQ 28 (EXT IRQ 3) HOST; active high; level sensitive - | IRQ 29 (EXT IRQ 4) PCI INTC#; active low; level sensitive - | IRQ 30 (EXT IRQ 5) PCI INTB#; active low; level sensitive - | IRQ 31 (EXT IRQ 6) PCI INTA#; active low; level sensitive - | -> IRQ6 Pin is NOW GPIO23 and can be activateted by setting - | PPC405GP_GPIO0_TCR Bit 0 = 1 (driving the output as defined in PPC405GP_GPIO0_OR, - | else tristate) - | Note for ERIC board: - | An interrupt taken for the HOST (IRQ 28) indicates that - | the HOST wrote a "1" to one of the following locations - | - VGA CRT_GPIO0 (if R1216 is loaded) - | - VGA CRT_GPIO1 (if R1217 is loaded) - | - +-------------------------------------------------------------------------*/ - - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - mtdcr (UIC0ER, 0x00000000); /* disable all ints */ - mtdcr (UIC0CR, 0x00000000); /* set all SMI to be non-critical */ - mtdcr (UIC0PR, 0xFFFFFF88); /* set int polarities; IRQ3 to 1 */ - mtdcr (UIC0TR, 0x10000000); /* set int trigger levels, UART0 is EDGE */ - mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */ - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - - mtdcr (CPC0_CR0, 0x00002000); /* set IRQ6 as GPIO23 to generate an interrupt request to the PCP2PCI bridge */ - - out32 (PPC405GP_GPIO0_OR, 0x60000000); /*fixme is SMB_INT high or low active??; IRQ6 is GPIO23 output */ - out32 (PPC405GP_GPIO0_TCR, 0x7E400000); - - return 0; -} - - -/* ------------------------------------------------------------------------- */ - -/* - * Check Board Identity: - */ - -int checkboard (void) -{ - char *s = getenv ("serial#"); - char *e; - - puts ("Board: "); - - if (!s || strncmp (s, "ERIC", 9)) { - puts ("### No HW ID - assuming ERIC"); - } else { - for (e = s; *e; ++e) { - if (*e == ' ') - break; - } - - for (; s < e; ++s) { - putc (*s); - } - } - - - putc ('\n'); - - return (0); -} - - -/* ------------------------------------------------------------------------- */ -/* ------------------------------------------------------------------------- */ -/* ------------------------------------------------------------------------- */ -/* - initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of - the necessary info for SDRAM controller configuration -*/ -/* ------------------------------------------------------------------------- */ -/* ------------------------------------------------------------------------- */ -phys_size_t initdram (int board_type) -{ -#ifndef CONFIG_ERIC - int i; - unsigned char datain[128]; - int TotalSize; -#endif - - /* - * ToDo: Move the asm init routine sdram_init() to this C file, - * or even better use some common ppc4xx code available - * in arch/powerpc/cpu/ppc4xx - */ - sdram_init(); - -#ifdef CONFIG_ERIC - /* - * we have no EEPROM on ERIC - * so let init.S do the init job for SDRAM - * and simply return 32MByte here - */ - return (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024); -#else - - /* Read Serial Presence Detect Information */ - for (i = 0; i < 128; i++) - datain[i] = 127; - i2c_send (SPD_EEPROM_ADDRESS, 0, 1, datain, 128); - printf ("\nReading DIMM...\n"); -#if 0 - for (i = 0; i < 128; i++) { - printf ("%d=0x%x ", i, datain[i]); - if (((i + 1) % 10) == 0) - printf ("\n"); - } - printf ("\n"); -#endif - - /*****************************/ - /* Retrieve interesting data */ - /*****************************/ - /* size of a SDRAM bank */ - /* Number of bytes per side / number of banks per side */ - if (datain[31] == 0x08) - TotalSize = 32; - else if (datain[31] == 0x10) - TotalSize = 64; - else { - printf ("IIC READ ERROR!!!\n"); - TotalSize = 32; - } - - /* single-sided DIMM or double-sided DIMM? */ - if (datain[5] != 1) { - /* double-sided DIMM => SDRAM banks 0..3 are valid */ - printf ("double-sided DIMM\n"); - TotalSize *= 2; - } - /* else single-sided DIMM => SDRAM bank 0 and bank 2 are valid */ - else { - printf ("single-sided DIMM\n"); - } - - - /* return size in Mb unit => *(1024*1024) */ - return (TotalSize * 1024 * 1024); -#endif -} - -/* ------------------------------------------------------------------------- */ - -int testdram (void) -{ - /* TODO: XXX XXX XXX */ - printf ("test: xxx MB - ok\n"); - - return (0); -} - -/* ------------------------------------------------------------------------- */ |