mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
/*
|
|
*
|
|
* (C) Copyright 2000-2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (C) Copyright 2007 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 <asm/immap.h>
|
|
|
|
/*
|
|
* Breath some life into the CPU...
|
|
*
|
|
* Set up the memory map,
|
|
* initialize a bunch of registers,
|
|
* initialize the UPM's
|
|
*/
|
|
void cpu_init_f(void)
|
|
{
|
|
volatile scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
|
|
volatile scm2_t *scm2 = (scm2_t *) MMAP_SCM2;
|
|
volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
|
|
volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
|
|
volatile wdog_t *wdog = (wdog_t *) MMAP_WDOG;
|
|
|
|
/* watchdog is enabled by default - disable the watchdog */
|
|
#ifndef CONFIG_WATCHDOG
|
|
wdog->cr = 0;
|
|
#endif
|
|
|
|
scm1->mpr0 = 0x77777777;
|
|
scm2->pacra = 0;
|
|
scm2->pacrb = 0;
|
|
scm2->pacrc = 0;
|
|
scm2->pacrd = 0;
|
|
scm2->pacre = 0;
|
|
scm2->pacrf = 0;
|
|
scm2->pacrg = 0;
|
|
scm1->pacrh = 0;
|
|
|
|
/* Port configuration */
|
|
gpio->par_cs = 0;
|
|
|
|
#if (defined(CFG_CS0_BASE) && defined(CFG_CS0_MASK) && defined(CFG_CS0_CTRL))
|
|
fbcs->csar0 = CFG_CS0_BASE;
|
|
fbcs->cscr0 = CFG_CS0_CTRL;
|
|
fbcs->csmr0 = CFG_CS0_MASK;
|
|
#endif
|
|
|
|
#if (defined(CFG_CS1_BASE) && defined(CFG_CS1_MASK) && defined(CFG_CS1_CTRL))
|
|
/* Latch chipselect */
|
|
gpio->par_cs |= GPIO_PAR_CS1;
|
|
fbcs->csar1 = CFG_CS1_BASE;
|
|
fbcs->cscr1 = CFG_CS1_CTRL;
|
|
fbcs->csmr1 = CFG_CS1_MASK;
|
|
#endif
|
|
|
|
#if (defined(CFG_CS2_BASE) && defined(CFG_CS2_MASK) && defined(CFG_CS2_CTRL))
|
|
gpio->par_cs |= GPIO_PAR_CS2;
|
|
fbcs->csar2 = CFG_CS2_BASE;
|
|
fbcs->cscr2 = CFG_CS2_CTRL;
|
|
fbcs->csmr2 = CFG_CS2_MASK;
|
|
#endif
|
|
|
|
#if (defined(CFG_CS3_BASE) && defined(CFG_CS3_MASK) && defined(CFG_CS3_CTRL))
|
|
gpio->par_cs |= GPIO_PAR_CS3;
|
|
fbcs->csar3 = CFG_CS3_BASE;
|
|
fbcs->cscr3 = CFG_CS3_CTRL;
|
|
fbcs->csmr3 = CFG_CS3_MASK;
|
|
#endif
|
|
|
|
#if (defined(CFG_CS4_BASE) && defined(CFG_CS4_MASK) && defined(CFG_CS4_CTRL))
|
|
gpio->par_cs |= GPIO_PAR_CS4;
|
|
fbcs->csar4 = CFG_CS4_BASE;
|
|
fbcs->cscr4 = CFG_CS4_CTRL;
|
|
fbcs->csmr4 = CFG_CS4_MASK;
|
|
#endif
|
|
|
|
#if (defined(CFG_CS5_BASE) && defined(CFG_CS5_MASK) && defined(CFG_CS5_CTRL))
|
|
gpio->par_cs |= GPIO_PAR_CS5;
|
|
fbcs->csar5 = CFG_CS5_BASE;
|
|
fbcs->cscr5 = CFG_CS5_CTRL;
|
|
fbcs->csmr5 = CFG_CS5_MASK;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FSL_I2C
|
|
gpio->par_feci2c = GPIO_PAR_FECI2C_SCL_SCL | GPIO_PAR_FECI2C_SDA_SDA;
|
|
#endif
|
|
|
|
icache_enable();
|
|
}
|
|
|
|
/*
|
|
* initialize higher level parts of CPU like timers
|
|
*/
|
|
int cpu_init_r(void)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
void uart_port_conf(void)
|
|
{
|
|
volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
|
|
|
|
/* Setup Ports: */
|
|
switch (CFG_UART_PORT) {
|
|
case 0:
|
|
gpio->par_uart = (GPIO_PAR_UART_TXD0 | GPIO_PAR_UART_RXD0);
|
|
break;
|
|
case 1:
|
|
gpio->par_uart =
|
|
(GPIO_PAR_UART_TXD1(3) | GPIO_PAR_UART_RXD1(3));
|
|
break;
|
|
case 2:
|
|
gpio->par_timer &= 0x0F;
|
|
gpio->par_timer |= (GPIO_PAR_TIN3_URXD2 | GPIO_PAR_TIN2_UTXD2);
|
|
break;
|
|
}
|
|
}
|