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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
Simon Glassc210f8b2014-10-29 13:08:58 -06008#include <dm.h>
Reinhard Meyerb06208c2010-11-07 13:26:14 +01009#include <asm/io.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010010#include <asm/arch/at91sam9260_matrix.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020011#include <asm/arch/at91_common.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010012#include <asm/arch/at91sam9_sdramc.h>
Wenyou Yang57b7f292016-02-03 10:16:49 +080013#include <asm/arch/clk.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020014#include <asm/arch/gpio.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020015
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020016/*
17 * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
18 * peripheral pins. Good to have if hardware is soldered optionally
19 * or in case of SPI no slave is selected. Avoid lines to float
20 * needlessly. Use a short local PUP define.
21 *
22 * Due to errata "TXD floats when CTS is inactive" pullups are always
23 * on for TXD pins.
24 */
25#ifdef CONFIG_AT91_GPIO_PULLUP
26# define PUP CONFIG_AT91_GPIO_PULLUP
27#else
28# define PUP 0
29#endif
30
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020031void at91_serial0_hw_init(void)
32{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010033 at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD0 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020034 at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD0 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080035 at91_periph_clk_enable(ATMEL_ID_USART0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020036}
37
38void at91_serial1_hw_init(void)
39{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010040 at91_set_a_periph(AT91_PIO_PORTB, 6, 1); /* TXD1 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020041 at91_set_a_periph(AT91_PIO_PORTB, 7, PUP); /* RXD1 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080042 at91_periph_clk_enable(ATMEL_ID_USART1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020043}
44
45void at91_serial2_hw_init(void)
46{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010047 at91_set_a_periph(AT91_PIO_PORTB, 8, 1); /* TXD2 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020048 at91_set_a_periph(AT91_PIO_PORTB, 9, PUP); /* RXD2 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080049 at91_periph_clk_enable(ATMEL_ID_USART2);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020050}
51
Reinhard Meyere260d0b2010-11-03 15:39:55 +010052void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020053{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020054 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010055 at91_set_a_periph(AT91_PIO_PORTB, 15, 1); /* DTXD */
Wenyou Yang57b7f292016-02-03 10:16:49 +080056 at91_periph_clk_enable(ATMEL_ID_SYS);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020057}
58
Tuomas Tynkkynen1b725202017-10-10 21:59:42 +030059#ifdef CONFIG_ATMEL_SPI
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020060void at91_spi0_hw_init(unsigned long cs_mask)
61{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020062 at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
63 at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
64 at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020065
Wenyou Yang57b7f292016-02-03 10:16:49 +080066 at91_periph_clk_enable(ATMEL_ID_SPI0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020067
68 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010069 at91_set_a_periph(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020070 }
71 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010072 at91_set_b_periph(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020073 }
74 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010075 at91_set_b_periph(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020076 }
77 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010078 at91_set_b_periph(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020079 }
80 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010081 at91_set_pio_output(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020082 }
83 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010084 at91_set_pio_output(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020085 }
86 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010087 at91_set_pio_output(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020088 }
89 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010090 at91_set_pio_output(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020091 }
92}
93
94void at91_spi1_hw_init(unsigned long cs_mask)
95{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020096 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
97 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
98 at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI1_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020099
Wenyou Yang57b7f292016-02-03 10:16:49 +0800100 at91_periph_clk_enable(ATMEL_ID_SPI1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200101
102 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100103 at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200104 }
105 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100106 at91_set_b_periph(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200107 }
108 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100109 at91_set_b_periph(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200110 }
111 if (cs_mask & (1 << 3)) {
Reinhard Meyer3da7e352011-07-25 21:56:04 +0000112 at91_set_b_periph(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200113 }
114 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100115 at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200116 }
117 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100118 at91_set_pio_output(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200119 }
120 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100121 at91_set_pio_output(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200122 }
123 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100124 at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200125 }
126}
127#endif
128
129#ifdef CONFIG_MACB
130void at91_macb_hw_init(void)
131{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800132 at91_periph_clk_enable(ATMEL_ID_EMAC0);
Markus Hubig33d678e2012-08-07 17:43:22 +0200133
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100134 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
135 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
136 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
137 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
138 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
139 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
140 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
141 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
142 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
143 at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200144
145#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100146 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
147 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
148 at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
149 at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
150 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
Masahiro Yamadae05deeb2015-04-08 18:15:53 +0900151#if defined(CONFIG_AT91SAM9260EK)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200152 /*
153 * use PA10, PA11 for ETX2, ETX3.
154 * PA23 and PA24 are for TWI EEPROM
155 */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100156 at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
157 at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200158#else
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100159 at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
160 at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
Reinhard Meyer146775f2010-12-01 05:49:53 +0100161#if defined(CONFIG_AT91SAM9G20)
162 /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
163 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
164 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
165#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200166#endif
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100167 at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200168#endif
169}
170#endif
Reinhard Meyerc718a562010-08-13 10:31:06 +0200171
Sven Schnelle69df6de2011-10-21 14:49:26 +0200172#if defined(CONFIG_GENERIC_ATMEL_MCI)
Reinhard Meyerc718a562010-08-13 10:31:06 +0200173void at91_mci_hw_init(void)
174{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800175 at91_periph_clk_enable(ATMEL_ID_MCI);
Wu, Josh1a500d62013-03-28 20:28:41 +0000176
Reinhard Meyerc718a562010-08-13 10:31:06 +0200177 at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
178#if defined(CONFIG_ATMEL_MCI_PORTB)
179 at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
180 at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
181 at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
182 at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
183 at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
184#else
185 at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
186 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
187 at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
188 at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
189 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
190#endif
191}
192#endif
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +0100193
194void at91_sdram_hw_init(void)
195{
196 at91_set_a_periph(AT91_PIO_PORTC, 16, 0);
197 at91_set_a_periph(AT91_PIO_PORTC, 17, 0);
198 at91_set_a_periph(AT91_PIO_PORTC, 18, 0);
199 at91_set_a_periph(AT91_PIO_PORTC, 19, 0);
200 at91_set_a_periph(AT91_PIO_PORTC, 20, 0);
201 at91_set_a_periph(AT91_PIO_PORTC, 21, 0);
202 at91_set_a_periph(AT91_PIO_PORTC, 22, 0);
203 at91_set_a_periph(AT91_PIO_PORTC, 23, 0);
204 at91_set_a_periph(AT91_PIO_PORTC, 24, 0);
205 at91_set_a_periph(AT91_PIO_PORTC, 25, 0);
206 at91_set_a_periph(AT91_PIO_PORTC, 26, 0);
207 at91_set_a_periph(AT91_PIO_PORTC, 27, 0);
208 at91_set_a_periph(AT91_PIO_PORTC, 28, 0);
209 at91_set_a_periph(AT91_PIO_PORTC, 29, 0);
210 at91_set_a_periph(AT91_PIO_PORTC, 30, 0);
211 at91_set_a_periph(AT91_PIO_PORTC, 31, 0);
212}
Simon Glassc210f8b2014-10-29 13:08:58 -0600213
214/* Platform data for the GPIOs */
Simon Glassb75b15b2020-12-03 16:55:23 -0700215static const struct at91_port_plat at91sam9260_plat[] = {
Simon Glassc210f8b2014-10-29 13:08:58 -0600216 { ATMEL_BASE_PIOA, "PA" },
217 { ATMEL_BASE_PIOB, "PB" },
218 { ATMEL_BASE_PIOC, "PC" },
219};
220
Simon Glass1d8364a2020-12-28 20:34:54 -0700221U_BOOT_DRVINFOS(at91sam9260_gpios) = {
Walter Lozano2901ac62020-06-25 01:10:04 -0300222 { "atmel_at91rm9200_gpio", &at91sam9260_plat[0] },
223 { "atmel_at91rm9200_gpio", &at91sam9260_plat[1] },
224 { "atmel_at91rm9200_gpio", &at91sam9260_plat[2] },
Simon Glassc210f8b2014-10-29 13:08:58 -0600225};