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Diffstat (limited to 'board/pcippc2/pcippc2.c')
| -rw-r--r-- | board/pcippc2/pcippc2.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/board/pcippc2/pcippc2.c b/board/pcippc2/pcippc2.c new file mode 100644 index 0000000..e1b065b --- /dev/null +++ b/board/pcippc2/pcippc2.c @@ -0,0 +1,214 @@ +/* + * (C) Copyright 2002 + * 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 <config.h> +#include <common.h> +#include <command.h> +#include <asm/io.h> +#include <linux/mtd/doc2000.h> +#include <watchdog.h> +#include <pci.h> + +#include "hardware.h" +#include "pcippc2.h" +#include "sconsole.h" +#include "fpga_serial.h" + +#if defined(CONFIG_WATCHDOG) + +static int pcippc2_wdt_init_done = 0; + +void pcippc2_wdt_init (void); + +#endif + + /* Check board identity + */ +int checkboard (void) +{ +#ifdef CONFIG_PCIPPC2 + puts ("Board: Gespac PCIPPC-2\n"); +#else + puts ("Board: Gespac PCIPPC-6\n"); +#endif + return 0; +} + + /* RAM size is stored in CPC0_RGBAN1 + */ +u32 pcippc2_sdram_size (void) +{ + return in32 (REG (CPC0, RGBAN1)); +} + +long initdram (int board_type) +{ + return cpc710_ram_init (); +} + +void do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ + out32 (REG (CPC0, SPOR), 0); + iobarrier_rw (); + while (1); +} + +int board_pre_init (void) +{ + out32 (REG (CPC0, RSTR), 0xC0000000); + iobarrier_rw (); + + out32 (REG (CPC0, RSTR), 0xF0000000); + iobarrier_rw (); + + out32 (REG (CPC0, UCTL), 0x00F80000); + + out32 (REG (CPC0, SIOC0), 0x30000000); + + out32 (REG (CPC0, ABCNTL), 0x00000000); + + out32 (REG (CPC0, SESR), 0x00000000); + out32 (REG (CPC0, SEAR), 0x00000000); + + /* Detect IBM Avignon CPC710 Revision */ + if ((in32 (REG (CPC0, UCTL)) & 0x000000F0) == CPC710_TYPE_100P) + out32 (REG (CPC0, PGCHP), 0xA0000040); + else + out32 (REG (CPC0, PGCHP), 0x80800040); + + + out32 (REG (CPC0, ATAS), 0x709C2508); + + iobarrier_rw (); + + return 0; +} + +void after_reloc (ulong dest_addr) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* Jump to the main U-Boot board init code + */ + board_init_r (gd, dest_addr); +} + +int misc_init_r (void) +{ + pcippc2_fpga_init (); + +#if defined(CONFIG_WATCHDOG) + pcippc2_wdt_init (); +#endif + + fpga_serial_init (sconsole_get_baudrate ()); + + sconsole_putc = fpga_serial_putc; + sconsole_puts = fpga_serial_puts; + sconsole_getc = fpga_serial_getc; + sconsole_tstc = fpga_serial_tstc; + sconsole_setbrg = fpga_serial_setbrg; + + sconsole_flush (); + return (0); +} + +void pci_init (void) +{ + cpc710_pci_init (); + + /* FPGA requires no retry timeouts to be enabled + */ + cpc710_pci_enable_timeout (); +} + +void doc_init (void) +{ + doc_probe (pcippc2_fpga1_phys + HW_FPGA1_DOC); +} + +#if defined(CONFIG_WATCHDOG) + +void pcippc2_wdt_init (void) +{ + out16r (FPGA (WDT, PROG), 0xffff); + out8 (FPGA (WDT, CTRL), 0x1); + + pcippc2_wdt_init_done = 1; +} + +void pcippc2_wdt_done (void) +{ + out8 (FPGA (WDT, CTRL), 0x0); + + pcippc2_wdt_init_done = 0; +} + +void pcippc2_wdt_reset (void) +{ + if (pcippc2_wdt_init_done == 1) + out8 (FPGA (WDT, REFRESH), 0x56); +} + +void watchdog_reset (void) +{ + int re_enable = disable_interrupts (); + + pcippc2_wdt_reset (); + if (re_enable) + enable_interrupts (); +} + +#if (CONFIG_COMMANDS & CFG_CMD_BSP) +int do_wd (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ + switch (argc) { + case 1: + printf ("Watchdog timer status is %s\n", + pcippc2_wdt_init_done == 1 ? "on" : "off"); + + return 0; + case 2: + if (!strcmp(argv[1],"on")) { + pcippc2_wdt_init(); + printf("Watchdog timer now is on\n"); + + return 0; + + } else if (!strcmp(argv[1],"off")) { + pcippc2_wdt_done(); + printf("Watchdog timer now is off\n"); + + return 0; + + } else + break; + default: + break; + } + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; +} + +#endif /* CFG_CMD_BSP */ +#endif /* CONFIG_WATCHDOG */ |