2 * (C) Copyright 2007-2008
3 * Stelian Pop <stelian.pop@leadtechdesign.com>
4 * Lead Tech Design <www.leadtechdesign.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/arch/at91_common.h>
27 #include <asm/arch/at91_pmc.h>
28 #include <asm/arch/gpio.h>
29 #include <asm/arch/io.h>
31 void at91_serial0_hw_init(void)
33 at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
35 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* TXD0 */
36 at91_set_a_periph(AT91_PIO_PORTA, 7, 0); /* RXD0 */
37 writel(1 << AT91SAM9RL_ID_US0, &pmc->pcer);
40 void at91_serial1_hw_init(void)
42 at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
44 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* TXD1 */
45 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* RXD1 */
46 writel(1 << AT91SAM9RL_ID_US1, &pmc->pcer);
49 void at91_serial2_hw_init(void)
51 at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
53 at91_set_a_periph(AT91_PIO_PORTA, 13, 1); /* TXD2 */
54 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* RXD2 */
55 writel(1 << AT91SAM9RL_ID_US2, &pmc->pcer);
58 void at91_serial3_hw_init(void)
60 at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
62 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* DRXD */
63 at91_set_a_periph(AT91_PIO_PORTA, 22, 1); /* DTXD */
64 writel(1 << AT91_ID_SYS, &pmc->pcer);
67 void at91_serial_hw_init(void)
70 at91_serial0_hw_init();
74 at91_serial1_hw_init();
78 at91_serial2_hw_init();
81 #ifdef CONFIG_USART3 /* DBGU */
82 at91_serial3_hw_init();
86 #ifdef CONFIG_HAS_DATAFLASH
87 void at91_spi0_hw_init(unsigned long cs_mask)
89 at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
91 at91_set_a_periph(AT91_PIO_PORTA, 25, 0); /* SPI0_MISO */
92 at91_set_a_periph(AT91_PIO_PORTA, 26, 0); /* SPI0_MOSI */
93 at91_set_a_periph(AT91_PIO_PORTA, 27, 0); /* SPI0_SPCK */
96 writel(1 << AT91SAM9RL_ID_SPI, &pmc->pcer);
98 if (cs_mask & (1 << 0)) {
99 at91_set_a_periph(AT91_PIO_PORTA, 28, 1);
101 if (cs_mask & (1 << 1)) {
102 at91_set_b_periph(AT91_PIO_PORTB, 7, 1);
104 if (cs_mask & (1 << 2)) {
105 at91_set_a_periph(AT91_PIO_PORTD, 8, 1);
107 if (cs_mask & (1 << 3)) {
108 at91_set_b_periph(AT91_PIO_PORTD, 9, 1);
110 if (cs_mask & (1 << 4)) {
111 at91_set_pio_output(AT91_PIO_PORTA, 28, 1);
113 if (cs_mask & (1 << 5)) {
114 at91_set_pio_output(AT91_PIO_PORTB, 7, 1);
116 if (cs_mask & (1 << 6)) {
117 at91_set_pio_output(AT91_PIO_PORTD, 8, 1);
119 if (cs_mask & (1 << 7)) {
120 at91_set_pio_output(AT91_PIO_PORTD, 9, 1);