| /* |
| * misc setup functions for MPC83xx |
| * |
| * Maintainer: Kumar Gala <galak@kernel.crashing.org> |
| * |
| * 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. |
| */ |
| |
| #include <linux/stddef.h> |
| #include <linux/kernel.h> |
| |
| #include <asm/io.h> |
| #include <asm/hw_irq.h> |
| #include <sysdev/fsl_soc.h> |
| |
| #include "mpc83xx.h" |
| |
| void mpc83xx_restart(char *cmd) |
| { |
| #define RST_OFFSET 0x00000900 |
| #define RST_PROT_REG 0x00000018 |
| #define RST_CTRL_REG 0x0000001c |
| __be32 __iomem *reg; |
| |
| /* map reset register space */ |
| reg = ioremap(get_immrbase() + 0x900, 0xff); |
| |
| local_irq_disable(); |
| |
| /* enable software reset "RSTE" */ |
| out_be32(reg + (RST_PROT_REG >> 2), 0x52535445); |
| |
| /* set software hard reset */ |
| out_be32(reg + (RST_CTRL_REG >> 2), 0x2); |
| for (;;) ; |
| } |
| |
| long __init mpc83xx_time_init(void) |
| { |
| #define SPCR_OFFSET 0x00000110 |
| #define SPCR_TBEN 0x00400000 |
| __be32 __iomem *spcr = ioremap(get_immrbase() + SPCR_OFFSET, 4); |
| __be32 tmp; |
| |
| tmp = in_be32(spcr); |
| out_be32(spcr, tmp | SPCR_TBEN); |
| |
| iounmap(spcr); |
| |
| return 0; |
| } |
