diff options
Diffstat (limited to 'arch/m68k/cpu/mcf532x/cpu.c')
| -rw-r--r-- | arch/m68k/cpu/mcf532x/cpu.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf532x/cpu.c b/arch/m68k/cpu/mcf532x/cpu.c new file mode 100644 index 0000000..4f160a6 --- /dev/null +++ b/arch/m68k/cpu/mcf532x/cpu.c @@ -0,0 +1,168 @@ +/* + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2008, 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[]) +{ + rcm_t *rcm = (rcm_t *) (MMAP_RCM); + + udelay(1000); + setbits_8(&rcm->rcr, RCM_RCR_SOFTRST); + + /* we don't return! */ + return 0; +}; + +int checkcpu(void) +{ + ccm_t *ccm = (ccm_t *) MMAP_CCM; + u16 msk; + u16 id = 0; + u8 ver; + + puts("CPU: "); + msk = (in_be16(&ccm->cir) >> 6); + ver = (in_be16(&ccm->cir) & 0x003f); + switch (msk) { +#ifdef CONFIG_MCF5301x + case 0x78: + id = 53010; + break; + case 0x77: + id = 53012; + break; + case 0x76: + id = 53015; + break; + case 0x74: + id = 53011; + break; + case 0x73: + id = 53013; + break; +#endif +#ifdef CONFIG_MCF532x + case 0x54: + id = 5329; + break; + case 0x59: + id = 5328; + break; + case 0x61: + id = 5327; + break; + case 0x65: + id = 5373; + break; + case 0x68: + id = 53721; + break; + case 0x69: + id = 5372; + break; + case 0x6B: + id = 5372; + break; +#endif + } + + if (id) { + char buf1[32], buf2[32]; + + printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, + ver); + 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_WATCHDOG) +/* Called by macro WATCHDOG_RESET */ +void watchdog_reset(void) +{ + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + + /* Count register */ + out_be16(&wdp->sr, 0x5555); + out_be16(&wdp->sr, 0xaaaa); +} + +int watchdog_disable(void) +{ + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + + /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ + /* halted watchdog timer */ + setbits_be16(&wdp->cr, WTM_WCR_HALTED); + + puts("WATCHDOG:disabled\n"); + return (0); +} + +int watchdog_init(void) +{ + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + u32 wdog_module = 0; + + /* set timeout and enable watchdog */ + wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); +#ifdef CONFIG_M5329 + out_be16(&wdp->mr, wdog_module / 8192); +#else + out_be16(&wdp->mr, wdog_module / 4096); +#endif + + out_be16(&wdp->cr, WTM_WCR_EN); + puts("WATCHDOG:enabled\n"); + + return (0); +} +#endif /* CONFIG_WATCHDOG */ + +#if 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) +{ + return mcffec_initialize(bis); +} +#endif |
