diff options
Diffstat (limited to 'arch/m68k/cpu/mcf523x/cpu_init.c')
| -rw-r--r-- | arch/m68k/cpu/mcf523x/cpu_init.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf523x/cpu_init.c b/arch/m68k/cpu/mcf523x/cpu_init.c new file mode 100644 index 0000000..d1c0b40 --- /dev/null +++ b/arch/m68k/cpu/mcf523x/cpu_init.c @@ -0,0 +1,185 @@ +/* + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2007, 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 <asm/immap.h> +#include <asm/io.h> + +#if defined(CONFIG_CMD_NET) +#include <config.h> +#include <net.h> +#include <asm/fec.h> +#endif + +/* + * 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) +{ + gpio_t *gpio = (gpio_t *) MMAP_GPIO; + fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS; + wdog_t *wdog = (wdog_t *) MMAP_WDOG; + scm_t *scm = (scm_t *) MMAP_SCM; + + /* watchdog is enabled by default - disable the watchdog */ +#ifndef CONFIG_WATCHDOG + out_be16(&wdog->cr, 0); +#endif + + out_be32(&scm->rambar, CONFIG_SYS_INIT_RAM_ADDR | SCM_RAMBAR_BDE); + + /* Port configuration */ + out_8(&gpio->par_cs, 0); + +#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) && defined(CONFIG_SYS_CS0_CTRL)) + out_be32(&fbcs->csar0, CONFIG_SYS_CS0_BASE); + out_be32(&fbcs->cscr0, CONFIG_SYS_CS0_CTRL); + out_be32(&fbcs->csmr0, CONFIG_SYS_CS0_MASK); +#endif + +#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) && defined(CONFIG_SYS_CS1_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS1); + out_be32(&fbcs->csar1, CONFIG_SYS_CS1_BASE); + out_be32(&fbcs->cscr1, CONFIG_SYS_CS1_CTRL); + out_be32(&fbcs->csmr1, CONFIG_SYS_CS1_MASK); +#endif + +#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) && defined(CONFIG_SYS_CS2_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS2); + out_be32(&fbcs->csar2, CONFIG_SYS_CS2_BASE); + out_be32(&fbcs->cscr2, CONFIG_SYS_CS2_CTRL); + out_be32(&fbcs->csmr2, CONFIG_SYS_CS2_MASK); +#endif + +#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) && defined(CONFIG_SYS_CS3_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS3); + out_be32(&fbcs->csar3, CONFIG_SYS_CS3_BASE); + out_be32(&fbcs->cscr3, CONFIG_SYS_CS3_CTRL); + out_be32(&fbcs->csmr3, CONFIG_SYS_CS3_MASK); +#endif + +#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) && defined(CONFIG_SYS_CS4_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS4); + out_be32(&fbcs->csar4, CONFIG_SYS_CS4_BASE); + out_be32(&fbcs->cscr4, CONFIG_SYS_CS4_CTRL); + out_be32(&fbcs->csmr4, CONFIG_SYS_CS4_MASK); +#endif + +#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) && defined(CONFIG_SYS_CS5_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS5); + out_be32(&fbcs->csar5, CONFIG_SYS_CS5_BASE); + out_be32(&fbcs->cscr5, CONFIG_SYS_CS5_CTRL); + out_be32(&fbcs->csmr5, CONFIG_SYS_CS5_MASK); +#endif + +#if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) && defined(CONFIG_SYS_CS6_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS6); + out_be32(&fbcs->csar6, CONFIG_SYS_CS6_BASE); + out_be32(&fbcs->cscr6, CONFIG_SYS_CS6_CTRL); + out_be32(&fbcs->csmr6, CONFIG_SYS_CS6_MASK); +#endif + +#if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) && defined(CONFIG_SYS_CS7_CTRL)) + setbits_8(&gpio->par_cs, GPIO_PAR_CS_CS7); + out_be32(&fbcs->csar7, CONFIG_SYS_CS7_BASE); + out_be32(&fbcs->cscr7, CONFIG_SYS_CS7_CTRL); + out_be32(&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(int port) +{ + gpio_t *gpio = (gpio_t *) MMAP_GPIO; + + /* Setup Ports: */ + switch (port) { + case 0: + clrbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U0RXD | GPIO_PAR_UART_U0TXD); + setbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U0RXD | GPIO_PAR_UART_U0TXD); + break; + case 1: + clrbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U1RXD_MASK | GPIO_PAR_UART_U1TXD_MASK); + setbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U1RXD_U1RXD | GPIO_PAR_UART_U1TXD_U1TXD); + break; + case 2: +#ifdef CONFIG_SYS_UART2_PRI_GPIO + clrbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U2RXD | GPIO_PAR_UART_U2TXD); + setbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U2RXD | GPIO_PAR_UART_U2TXD); +#elif defined(CONFIG_SYS_UART2_ALT1_GPIO) + clrbits_8(&gpio->par_feci2c, + GPIO_PAR_FECI2C_EMDC_MASK | GPIO_PAR_FECI2C_EMDIO_MASK); + setbits_8(&gpio->par_feci2c, + GPIO_PAR_FECI2C_EMDC_U2TXD | GPIO_PAR_FECI2C_EMDIO_U2RXD); +#endif + break; + } +} + +#if defined(CONFIG_CMD_NET) +int fecpin_setclear(struct eth_device *dev, int setclear) +{ + gpio_t *gpio = (gpio_t *) MMAP_GPIO; + + if (setclear) { + setbits_8(&gpio->par_feci2c, + GPIO_PAR_FECI2C_EMDC_FECEMDC | + GPIO_PAR_FECI2C_EMDIO_FECEMDIO); + } else { + clrbits_8(&gpio->par_feci2c, + GPIO_PAR_FECI2C_EMDC_MASK | + GPIO_PAR_FECI2C_EMDIO_MASK); + } + + return 0; +} +#endif |
