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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>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02006 */
7
8#include <common.h>
Simon Glassc210f8b2014-10-29 13:08:58 -06009#include <dm.h>
Reinhard Meyerb06208c2010-11-07 13:26:14 +010010#include <asm/io.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010011#include <asm/arch/at91sam9260_matrix.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020012#include <asm/arch/at91_common.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010013#include <asm/arch/at91sam9_sdramc.h>
Wenyou Yang57b7f292016-02-03 10:16:49 +080014#include <asm/arch/clk.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020015#include <asm/arch/gpio.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020016
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020017/*
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
31
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020032void at91_serial0_hw_init(void)
33{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010034 at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD0 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020035 at91_set_a_periph(AT91_PIO_PORTB, 5, 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_PORTB, 6, 1); /* TXD1 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020042 at91_set_a_periph(AT91_PIO_PORTB, 7, 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_PORTB, 8, 1); /* TXD2 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020049 at91_set_a_periph(AT91_PIO_PORTB, 9, 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
Reinhard Meyere260d0b2010-11-03 15:39:55 +010053void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020054{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020055 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010056 at91_set_a_periph(AT91_PIO_PORTB, 15, 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{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020063 at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
64 at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
65 at91_set_a_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_a_periph(AT91_PIO_PORTA, 3, 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_PORTC, 11, 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_PORTC, 16, 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_PORTC, 17, 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, 3, 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_PORTC, 11, 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_PORTC, 16, 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_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020092 }
93}
94
95void at91_spi1_hw_init(unsigned long cs_mask)
96{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020097 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
98 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
99 at91_set_a_periph(AT91_PIO_PORTB, 2, 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, 3, 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_b_periph(AT91_PIO_PORTC, 5, 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_b_periph(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200111 }
112 if (cs_mask & (1 << 3)) {
Reinhard Meyer3da7e352011-07-25 21:56:04 +0000113 at91_set_b_periph(AT91_PIO_PORTC, 3, 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, 3, 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_PORTC, 5, 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_PORTC, 4, 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_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200126 }
127}
128#endif
129
130#ifdef CONFIG_MACB
131void at91_macb_hw_init(void)
132{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800133 at91_periph_clk_enable(ATMEL_ID_EMAC0);
Markus Hubig33d678e2012-08-07 17:43:22 +0200134
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100135 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
136 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
137 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
138 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
139 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
140 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
141 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
142 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
143 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
144 at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200145
146#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100147 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
148 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
149 at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
150 at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
151 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
Masahiro Yamadae05deeb2015-04-08 18:15:53 +0900152#if defined(CONFIG_AT91SAM9260EK)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200153 /*
154 * use PA10, PA11 for ETX2, ETX3.
155 * PA23 and PA24 are for TWI EEPROM
156 */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100157 at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
158 at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200159#else
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100160 at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
161 at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
Reinhard Meyer146775f2010-12-01 05:49:53 +0100162#if defined(CONFIG_AT91SAM9G20)
163 /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
164 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
165 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
166#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200167#endif
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100168 at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200169#endif
170}
171#endif
Reinhard Meyerc718a562010-08-13 10:31:06 +0200172
Sven Schnelle69df6de2011-10-21 14:49:26 +0200173#if defined(CONFIG_GENERIC_ATMEL_MCI)
Reinhard Meyerc718a562010-08-13 10:31:06 +0200174void at91_mci_hw_init(void)
175{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800176 at91_periph_clk_enable(ATMEL_ID_MCI);
Wu, Josh1a500d62013-03-28 20:28:41 +0000177
Reinhard Meyerc718a562010-08-13 10:31:06 +0200178 at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
179#if defined(CONFIG_ATMEL_MCI_PORTB)
180 at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
181 at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
182 at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
183 at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
184 at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
185#else
186 at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
187 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
188 at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
189 at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
190 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
191#endif
192}
193#endif
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +0100194
195void at91_sdram_hw_init(void)
196{
197 at91_set_a_periph(AT91_PIO_PORTC, 16, 0);
198 at91_set_a_periph(AT91_PIO_PORTC, 17, 0);
199 at91_set_a_periph(AT91_PIO_PORTC, 18, 0);
200 at91_set_a_periph(AT91_PIO_PORTC, 19, 0);
201 at91_set_a_periph(AT91_PIO_PORTC, 20, 0);
202 at91_set_a_periph(AT91_PIO_PORTC, 21, 0);
203 at91_set_a_periph(AT91_PIO_PORTC, 22, 0);
204 at91_set_a_periph(AT91_PIO_PORTC, 23, 0);
205 at91_set_a_periph(AT91_PIO_PORTC, 24, 0);
206 at91_set_a_periph(AT91_PIO_PORTC, 25, 0);
207 at91_set_a_periph(AT91_PIO_PORTC, 26, 0);
208 at91_set_a_periph(AT91_PIO_PORTC, 27, 0);
209 at91_set_a_periph(AT91_PIO_PORTC, 28, 0);
210 at91_set_a_periph(AT91_PIO_PORTC, 29, 0);
211 at91_set_a_periph(AT91_PIO_PORTC, 30, 0);
212 at91_set_a_periph(AT91_PIO_PORTC, 31, 0);
213}
Simon Glassc210f8b2014-10-29 13:08:58 -0600214
215/* Platform data for the GPIOs */
216static const struct at91_port_platdata at91sam9260_plat[] = {
217 { ATMEL_BASE_PIOA, "PA" },
218 { ATMEL_BASE_PIOB, "PB" },
219 { ATMEL_BASE_PIOC, "PC" },
220};
221
222U_BOOT_DEVICES(at91sam9260_gpios) = {
223 { "gpio_at91", &at91sam9260_plat[0] },
224 { "gpio_at91", &at91sam9260_plat[1] },
225 { "gpio_at91", &at91sam9260_plat[2] },
226};