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/*
*
* (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 gpio_t *gpio = (gpio_t *) MMAP_GPIO;
volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
volatile wdog_t *wdog = (wdog_t *) MMAP_WDOG;
volatile scm_t *scm = (scm_t *) MMAP_SCM;
/* watchdog is enabled by default - disable the watchdog */
#ifndef CONFIG_WATCHDOG
wdog->cr = 0;
#endif
scm->rambar = (CONFIG_SYS_INIT_RAM_ADDR | SCM_RAMBAR_BDE);
/* Port configuration */
gpio->par_cs = 0;
#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) && defined(CONFIG_SYS_CS0_CTRL))
fbcs->csar0 = CONFIG_SYS_CS0_BASE;
fbcs->cscr0 = CONFIG_SYS_CS0_CTRL;
fbcs->csmr0 = CONFIG_SYS_CS0_MASK;
#endif
#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) && defined(CONFIG_SYS_CS1_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS1;
fbcs->csar1 = CONFIG_SYS_CS1_BASE;
fbcs->cscr1 = CONFIG_SYS_CS1_CTRL;
fbcs->csmr1 = CONFIG_SYS_CS1_MASK;
#endif
#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) && defined(CONFIG_SYS_CS2_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS2;
fbcs->csar2 = CONFIG_SYS_CS2_BASE;
fbcs->cscr2 = CONFIG_SYS_CS2_CTRL;
fbcs->csmr2 = CONFIG_SYS_CS2_MASK;
#endif
#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) && defined(CONFIG_SYS_CS3_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS3;
fbcs->csar3 = CONFIG_SYS_CS3_BASE;
fbcs->cscr3 = CONFIG_SYS_CS3_CTRL;
fbcs->csmr3 = CONFIG_SYS_CS3_MASK;
#endif
#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) && defined(CONFIG_SYS_CS4_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS4;
fbcs->csar4 = CONFIG_SYS_CS4_BASE;
fbcs->cscr4 = CONFIG_SYS_CS4_CTRL;
fbcs->csmr4 = CONFIG_SYS_CS4_MASK;
#endif
#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) && defined(CONFIG_SYS_CS5_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS5;
fbcs->csar5 = CONFIG_SYS_CS5_BASE;
fbcs->cscr5 = CONFIG_SYS_CS5_CTRL;
fbcs->csmr5 = CONFIG_SYS_CS5_MASK;
#endif
#if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) && defined(CONFIG_SYS_CS6_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS6;
fbcs->csar6 = CONFIG_SYS_CS6_BASE;
fbcs->cscr6 = CONFIG_SYS_CS6_CTRL;
fbcs->csmr6 = CONFIG_SYS_CS6_MASK;
#endif
#if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) && defined(CONFIG_SYS_CS7_CTRL))
gpio->par_cs |= GPIO_PAR_CS_CS7;
fbcs->csar7 = CONFIG_SYS_CS7_BASE;
fbcs->cscr7 = CONFIG_SYS_CS7_CTRL;
fbcs->csmr7 = CONFIG_SYS_CS7_MASK;
#endif
#ifdef CONFIG_FSL_I2C
CONFIG_SYS_I2C_PINMUX_REG &= CONFIG_SYS_I2C_PINMUX_CLR;
CONFIG_SYS_I2C_PINMUX_REG |= CONFIG_SYS_I2C_PINMUX_SET;
#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 (CONFIG_SYS_UART_PORT) {
case 0:
gpio->par_uart = (GPIO_PAR_UART_U0RXD | GPIO_PAR_UART_U0TXD);
break;
case 1:
gpio->par_uart =
(GPIO_PAR_UART_U1RXD_U1RXD | GPIO_PAR_UART_U1TXD_U1TXD);
break;
case 2:
gpio->par_timer = (GPIO_PAR_UART_U2RXD | GPIO_PAR_UART_U2TXD);
break;
}
}
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