diff options
Diffstat (limited to 'cpu/mcf523x/cpu_init.c')
| -rw-r--r-- | cpu/mcf523x/cpu_init.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/cpu/mcf523x/cpu_init.c b/cpu/mcf523x/cpu_init.c new file mode 100644 index 0000000..a31054d --- /dev/null +++ b/cpu/mcf523x/cpu_init.c @@ -0,0 +1,145 @@ +/* + * + * (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 = (CFG_INIT_RAM_ADDR | SCM_RAMBAR_BDE); + + /* 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)) + gpio->par_cs |= GPIO_PAR_CS_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_CS_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_CS_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_CS_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_CS_CS5; + fbcs->csar5 = CFG_CS5_BASE; + fbcs->cscr5 = CFG_CS5_CTRL; + fbcs->csmr5 = CFG_CS5_MASK; +#endif + +#if (defined(CFG_CS6_BASE) && defined(CFG_CS6_MASK) && defined(CFG_CS6_CTRL)) + gpio->par_cs |= GPIO_PAR_CS_CS6; + fbcs->csar6 = CFG_CS6_BASE; + fbcs->cscr6 = CFG_CS6_CTRL; + fbcs->csmr6 = CFG_CS6_MASK; +#endif + +#if (defined(CFG_CS7_BASE) && defined(CFG_CS7_MASK) && defined(CFG_CS7_CTRL)) + gpio->par_cs |= GPIO_PAR_CS_CS7; + fbcs->csar7 = CFG_CS7_BASE; + fbcs->cscr7 = CFG_CS7_CTRL; + fbcs->csmr7 = CFG_CS7_MASK; +#endif + +#ifdef CONFIG_FSL_I2C + gpio->par_feci2c &= ~(GPIO_PAR_FECI2C_SCL_MASK | GPIO_PAR_FECI2C_SDA_MASK); + gpio->par_feci2c |= (GPIO_PAR_FECI2C_SCL_I2CSCL | GPIO_PAR_FECI2C_SDA_I2CSDA); +#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_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; + } +} |