diff options
Diffstat (limited to 'arch/m68k/cpu/mcf547x_8x/cpu.c')
| -rw-r--r-- | arch/m68k/cpu/mcf547x_8x/cpu.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf547x_8x/cpu.c b/arch/m68k/cpu/mcf547x_8x/cpu.c new file mode 100644 index 0000000..157a8e4 --- /dev/null +++ b/arch/m68k/cpu/mcf547x_8x/cpu.c @@ -0,0 +1,164 @@ +/* + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * + * 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 <watchdog.h> +#include <command.h> +#include <netdev.h> + +#include <asm/immap.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); + + out_be16(&gptmr->pre, 10); + out_be16(&gptmr->cnt, 1); + + /* enable watchdog, set timeout to 0 and wait */ + out_8(&gptmr->mode, GPT_TMS_SGPIO); + out_8(&gptmr->ctrl, GPT_CTRL_WDEN | GPT_CTRL_CE); + + /* we don't return! */ + return 1; +}; + +int checkcpu(void) +{ + siu_t *siu = (siu_t *) MMAP_SIU; + u16 id = 0; + + puts("CPU: "); + + switch ((in_be32(&siu->jtagid) & 0x000FF000) >> 12) { + case 0x0C: + id = 5485; + break; + case 0x0D: + id = 5484; + break; + case 0x0E: + id = 5483; + break; + case 0x0F: + id = 5482; + break; + case 0x10: + id = 5481; + break; + case 0x11: + id = 5480; + break; + case 0x12: + id = 5475; + break; + case 0x13: + id = 5474; + break; + case 0x14: + id = 5473; + break; + case 0x15: + id = 5472; + break; + case 0x16: + id = 5471; + break; + case 0x17: + id = 5470; + break; + } + + if (id) { + char buf1[32], buf2[32]; + + printf("Freescale MCF%d\n", id); + printf(" CPU CLK %s MHz BUS CLK %s MHz\n", + strmhz(buf1, gd->cpu_clk), + strmhz(buf2, gd->bus_clk)); + } + + return 0; +}; + +#if defined(CONFIG_HW_WATCHDOG) +/* Called by macro WATCHDOG_RESET */ +void hw_watchdog_reset(void) +{ + gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); + + out_8(&gptmr->ocpw, 0xa5); +} + +int watchdog_disable(void) +{ + gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); + + /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ + out_8(&gptmr->mode, 0); + out_8(&gptmr->ctrl, 0); + + puts("WATCHDOG:disabled\n"); + + return (0); +} + +int watchdog_init(void) +{ + gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); + + out_be16(&gptmr->pre, CONFIG_WATCHDOG_TIMEOUT); + out_be16(&gptmr->cnt, CONFIG_SYS_TIMER_PRESCALER * 1000); + + out_8(&gptmr->mode, GPT_TMS_SGPIO); + out_8(&gptmr->ctrl, GPT_CTRL_CE | GPT_CTRL_WDEN); + puts("WATCHDOG:enabled\n"); + + return (0); +} +#endif /* CONFIG_HW_WATCHDOG */ + +#if defined(CONFIG_FSLDMAFEC) || defined(CONFIG_MCFFEC) +/* Default initializations for MCFFEC controllers. To override, + * create a board-specific function called: + * int board_eth_init(bd_t *bis) + */ + +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_FSLDMAFEC) + mcdmafec_initialize(bis); +#endif +#if defined(CONFIG_MCFFEC) + mcffec_initialize(bis); +#endif + return 0; +} +#endif |
