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Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02002/*
3 * (C) Copyright 2007-2008
Stelian Pop5ee0c7f2011-11-01 00:00:39 +01004 * Stelian Pop <stelian@popies.net>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02005 * Lead Tech Design <www.leadtechdesign.com>
6 *
Daniel Gorsulowskibbe11692011-01-20 23:12:15 +00007 * (C) Copyright 2009-2011
Daniel Gorsulowski96d1b472009-06-30 23:03:33 +02008 * Daniel Gorsulowski <daniel.gorsulowski@esd.eu>
9 * esd electronic system design gmbh <www.esd.eu>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020010 */
11
Daniel Gorsulowskibbe11692011-01-20 23:12:15 +000012#include <asm/io.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020013#include <asm/arch/at91_common.h>
Wenyou Yang57b7f292016-02-03 10:16:49 +080014#include <asm/arch/clk.h>
Xu, Hong4fae89c2011-06-10 21:31:25 +000015#include <asm/arch/gpio.h>
16
17/*
18 * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
19 * peripheral pins. Good to have if hardware is soldered optionally
20 * or in case of SPI no slave is selected. Avoid lines to float
21 * needlessly. Use a short local PUP define.
22 *
23 * Due to errata "TXD floats when CTS is inactive" pullups are always
24 * on for TXD pins.
25 */
26#ifdef CONFIG_AT91_GPIO_PULLUP
27# define PUP CONFIG_AT91_GPIO_PULLUP
28#else
29# define PUP 0
30#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020031
32void at91_serial0_hw_init(void)
33{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010034 at91_set_a_periph(AT91_PIO_PORTA, 26, 1); /* TXD0 */
Xu, Hong4fae89c2011-06-10 21:31:25 +000035 at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* RXD0 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080036 at91_periph_clk_enable(ATMEL_ID_USART0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020037}
38
39void at91_serial1_hw_init(void)
40{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010041 at91_set_a_periph(AT91_PIO_PORTD, 0, 1); /* TXD1 */
Xu, Hong4fae89c2011-06-10 21:31:25 +000042 at91_set_a_periph(AT91_PIO_PORTD, 1, PUP); /* RXD1 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080043 at91_periph_clk_enable(ATMEL_ID_USART1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020044}
45
46void at91_serial2_hw_init(void)
47{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010048 at91_set_a_periph(AT91_PIO_PORTD, 2, 1); /* TXD2 */
Xu, Hong4fae89c2011-06-10 21:31:25 +000049 at91_set_a_periph(AT91_PIO_PORTD, 3, PUP); /* RXD2 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080050 at91_periph_clk_enable(ATMEL_ID_USART2);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020051}
52
Daniel Gorsulowskibbe11692011-01-20 23:12:15 +000053void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020054{
Xu, Hong4fae89c2011-06-10 21:31:25 +000055 at91_set_a_periph(AT91_PIO_PORTC, 30, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010056 at91_set_a_periph(AT91_PIO_PORTC, 31, 1); /* DTXD */
Wenyou Yang57b7f292016-02-03 10:16:49 +080057 at91_periph_clk_enable(ATMEL_ID_SYS);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020058}
59
Tuomas Tynkkynen1b725202017-10-10 21:59:42 +030060#ifdef CONFIG_ATMEL_SPI
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020061void at91_spi0_hw_init(unsigned long cs_mask)
62{
Xu, Hong4fae89c2011-06-10 21:31:25 +000063 at91_set_b_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
64 at91_set_b_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
65 at91_set_b_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020066
Wenyou Yang57b7f292016-02-03 10:16:49 +080067 at91_periph_clk_enable(ATMEL_ID_SPI0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020068
69 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010070 at91_set_b_periph(AT91_PIO_PORTA, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020071 }
72 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010073 at91_set_b_periph(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020074 }
75 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010076 at91_set_b_periph(AT91_PIO_PORTA, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020077 }
78 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010079 at91_set_b_periph(AT91_PIO_PORTB, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020080 }
81 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010082 at91_set_pio_output(AT91_PIO_PORTA, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020083 }
84 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010085 at91_set_pio_output(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020086 }
87 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010088 at91_set_pio_output(AT91_PIO_PORTA, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020089 }
90 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010091 at91_set_pio_output(AT91_PIO_PORTB, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020092 }
93}
94
95void at91_spi1_hw_init(unsigned long cs_mask)
96{
Xu, Hong4fae89c2011-06-10 21:31:25 +000097 at91_set_a_periph(AT91_PIO_PORTB, 12, PUP); /* SPI1_MISO */
98 at91_set_a_periph(AT91_PIO_PORTB, 13, PUP); /* SPI1_MOSI */
99 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200100
Wenyou Yang57b7f292016-02-03 10:16:49 +0800101 at91_periph_clk_enable(ATMEL_ID_SPI1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200102
103 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100104 at91_set_a_periph(AT91_PIO_PORTB, 15, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200105 }
106 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100107 at91_set_a_periph(AT91_PIO_PORTB, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200108 }
109 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100110 at91_set_a_periph(AT91_PIO_PORTB, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200111 }
112 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100113 at91_set_a_periph(AT91_PIO_PORTB, 18, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200114 }
115 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100116 at91_set_pio_output(AT91_PIO_PORTB, 15, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200117 }
118 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100119 at91_set_pio_output(AT91_PIO_PORTB, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200120 }
121 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100122 at91_set_pio_output(AT91_PIO_PORTB, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200123 }
124 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100125 at91_set_pio_output(AT91_PIO_PORTB, 18, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200126 }
127}
128#endif
129
Andreas Henrikssond70d42f2014-01-27 19:18:59 +0100130#if defined(CONFIG_GENERIC_ATMEL_MCI)
131void at91_mci_hw_init(void)
132{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800133 at91_periph_clk_enable(ATMEL_ID_MCI1);
Andreas Henrikssond70d42f2014-01-27 19:18:59 +0100134
135 at91_set_a_periph(AT91_PIO_PORTA, 6, PUP); /* MCI1_CK */
136
137#if defined(CONFIG_ATMEL_MCI_PORTB)
138 at91_set_a_periph(AT91_PIO_PORTA, 21, PUP); /* MCI1_CDB */
139 at91_set_a_periph(AT91_PIO_PORTA, 22, PUP); /* MCI1_DB0 */
140 at91_set_a_periph(AT91_PIO_PORTA, 23, PUP); /* MCI1_DB1 */
141 at91_set_a_periph(AT91_PIO_PORTA, 24, PUP); /* MCI1_DB2 */
142 at91_set_a_periph(AT91_PIO_PORTA, 25, PUP); /* MCI1_DB3 */
143#else
144 at91_set_a_periph(AT91_PIO_PORTA, 7, PUP); /* MCI1_CDA */
145 at91_set_a_periph(AT91_PIO_PORTA, 8, PUP); /* MCI1_DA0 */
146 at91_set_a_periph(AT91_PIO_PORTA, 9, PUP); /* MCI1_DA1 */
147 at91_set_a_periph(AT91_PIO_PORTA, 10, PUP); /* MCI1_DA2 */
148 at91_set_a_periph(AT91_PIO_PORTA, 11, PUP); /* MCI1_DA3 */
149#endif
150}
151#endif
152
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200153#ifdef CONFIG_MACB
154void at91_macb_hw_init(void)
155{
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100156 at91_set_a_periph(AT91_PIO_PORTE, 21, 0); /* ETXCK_EREFCK */
157 at91_set_b_periph(AT91_PIO_PORTC, 25, 0); /* ERXDV */
158 at91_set_a_periph(AT91_PIO_PORTE, 25, 0); /* ERX0 */
159 at91_set_a_periph(AT91_PIO_PORTE, 26, 0); /* ERX1 */
160 at91_set_a_periph(AT91_PIO_PORTE, 27, 0); /* ERXER */
161 at91_set_a_periph(AT91_PIO_PORTE, 28, 0); /* ETXEN */
162 at91_set_a_periph(AT91_PIO_PORTE, 23, 0); /* ETX0 */
163 at91_set_a_periph(AT91_PIO_PORTE, 24, 0); /* ETX1 */
164 at91_set_a_periph(AT91_PIO_PORTE, 30, 0); /* EMDIO */
165 at91_set_a_periph(AT91_PIO_PORTE, 29, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200166
167#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100168 at91_set_a_periph(AT91_PIO_PORTE, 22, 0); /* ECRS */
169 at91_set_b_periph(AT91_PIO_PORTC, 26, 0); /* ECOL */
170 at91_set_b_periph(AT91_PIO_PORTC, 22, 0); /* ERX2 */
171 at91_set_b_periph(AT91_PIO_PORTC, 23, 0); /* ERX3 */
172 at91_set_b_periph(AT91_PIO_PORTC, 27, 0); /* ERXCK */
173 at91_set_b_periph(AT91_PIO_PORTC, 20, 0); /* ETX2 */
174 at91_set_b_periph(AT91_PIO_PORTC, 21, 0); /* ETX3 */
175 at91_set_b_periph(AT91_PIO_PORTC, 24, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200176#endif
177}
178#endif
179
180#ifdef CONFIG_USB_OHCI_NEW
181void at91_uhp_hw_init(void)
182{
183 /* Enable VBus on UHP ports */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100184 at91_set_pio_output(AT91_PIO_PORTA, 21, 0);
185 at91_set_pio_output(AT91_PIO_PORTA, 24, 0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200186}
187#endif
Daniel Gorsulowski96d1b472009-06-30 23:03:33 +0200188
189#ifdef CONFIG_AT91_CAN
190void at91_can_hw_init(void)
191{
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100192 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* CAN_TX */
193 at91_set_a_periph(AT91_PIO_PORTA, 14, 1); /* CAN_RX */
Daniel Gorsulowski96d1b472009-06-30 23:03:33 +0200194
Wenyou Yang57b7f292016-02-03 10:16:49 +0800195 at91_periph_clk_enable(ATMEL_ID_CAN);
Daniel Gorsulowski96d1b472009-06-30 23:03:33 +0200196}
197#endif