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git.ipfire.org Git - people/ms/u-boot.git/blob - cpu/mcf532x/cpu_init.c
3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * (C) Copyright 2007 Freescale Semiconductor, Inc.
7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/immap.h>
34 * Breath some life into the CPU...
36 * Set up the memory map,
37 * initialize a bunch of registers,
38 * initialize the UPM's
42 volatile scm1_t
*scm1
= (scm1_t
*) MMAP_SCM1
;
43 volatile scm2_t
*scm2
= (scm2_t
*) MMAP_SCM2
;
44 volatile gpio_t
*gpio
= (gpio_t
*) MMAP_GPIO
;
45 volatile fbcs_t
*fbcs
= (fbcs_t
*) MMAP_FBCS
;
46 volatile wdog_t
*wdog
= (wdog_t
*) MMAP_WDOG
;
48 /* watchdog is enabled by default - disable the watchdog */
49 #ifndef CONFIG_WATCHDOG
53 scm1
->mpr0
= 0x77777777;
63 /* Port configuration */
66 #if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) && defined(CONFIG_SYS_CS0_CTRL))
67 fbcs
->csar0
= CONFIG_SYS_CS0_BASE
;
68 fbcs
->cscr0
= CONFIG_SYS_CS0_CTRL
;
69 fbcs
->csmr0
= CONFIG_SYS_CS0_MASK
;
72 #if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) && defined(CONFIG_SYS_CS1_CTRL))
73 /* Latch chipselect */
74 gpio
->par_cs
|= GPIO_PAR_CS1
;
75 fbcs
->csar1
= CONFIG_SYS_CS1_BASE
;
76 fbcs
->cscr1
= CONFIG_SYS_CS1_CTRL
;
77 fbcs
->csmr1
= CONFIG_SYS_CS1_MASK
;
80 #if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) && defined(CONFIG_SYS_CS2_CTRL))
81 gpio
->par_cs
|= GPIO_PAR_CS2
;
82 fbcs
->csar2
= CONFIG_SYS_CS2_BASE
;
83 fbcs
->cscr2
= CONFIG_SYS_CS2_CTRL
;
84 fbcs
->csmr2
= CONFIG_SYS_CS2_MASK
;
87 #if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) && defined(CONFIG_SYS_CS3_CTRL))
88 gpio
->par_cs
|= GPIO_PAR_CS3
;
89 fbcs
->csar3
= CONFIG_SYS_CS3_BASE
;
90 fbcs
->cscr3
= CONFIG_SYS_CS3_CTRL
;
91 fbcs
->csmr3
= CONFIG_SYS_CS3_MASK
;
94 #if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) && defined(CONFIG_SYS_CS4_CTRL))
95 gpio
->par_cs
|= GPIO_PAR_CS4
;
96 fbcs
->csar4
= CONFIG_SYS_CS4_BASE
;
97 fbcs
->cscr4
= CONFIG_SYS_CS4_CTRL
;
98 fbcs
->csmr4
= CONFIG_SYS_CS4_MASK
;
101 #if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) && defined(CONFIG_SYS_CS5_CTRL))
102 gpio
->par_cs
|= GPIO_PAR_CS5
;
103 fbcs
->csar5
= CONFIG_SYS_CS5_BASE
;
104 fbcs
->cscr5
= CONFIG_SYS_CS5_CTRL
;
105 fbcs
->csmr5
= CONFIG_SYS_CS5_MASK
;
108 #ifdef CONFIG_FSL_I2C
109 gpio
->par_feci2c
= GPIO_PAR_FECI2C_SCL_SCL
| GPIO_PAR_FECI2C_SDA_SDA
;
116 * initialize higher level parts of CPU like timers
123 void uart_port_conf(void)
125 volatile gpio_t
*gpio
= (gpio_t
*) MMAP_GPIO
;
128 switch (CONFIG_SYS_UART_PORT
) {
130 gpio
->par_uart
= (GPIO_PAR_UART_TXD0
| GPIO_PAR_UART_RXD0
);
134 (GPIO_PAR_UART_TXD1(3) | GPIO_PAR_UART_RXD1(3));
137 gpio
->par_timer
&= 0x0F;
138 gpio
->par_timer
|= (GPIO_PAR_TIN3_URXD2
| GPIO_PAR_TIN2_UTXD2
);