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Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02001/*
2 * (C) Copyright 2007-2008
Stelian Pop5ee0c7f2011-11-01 00:00:39 +01003 * Stelian Pop <stelian@popies.net>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02004 * Lead Tech Design <www.leadtechdesign.com>
5 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +02007 */
8
9#include <common.h>
Simon Glassc210f8b2014-10-29 13:08:58 -060010#include <dm.h>
Reinhard Meyerb06208c2010-11-07 13:26:14 +010011#include <asm/io.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010012#include <asm/arch/at91sam9260_matrix.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020013#include <asm/arch/at91_common.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010014#include <asm/arch/at91sam9_sdramc.h>
Wenyou Yang57b7f292016-02-03 10:16:49 +080015#include <asm/arch/clk.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020016#include <asm/arch/gpio.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020017
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020018/*
19 * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
20 * peripheral pins. Good to have if hardware is soldered optionally
21 * or in case of SPI no slave is selected. Avoid lines to float
22 * needlessly. Use a short local PUP define.
23 *
24 * Due to errata "TXD floats when CTS is inactive" pullups are always
25 * on for TXD pins.
26 */
27#ifdef CONFIG_AT91_GPIO_PULLUP
28# define PUP CONFIG_AT91_GPIO_PULLUP
29#else
30# define PUP 0
31#endif
32
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020033void at91_serial0_hw_init(void)
34{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010035 at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD0 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020036 at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD0 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080037 at91_periph_clk_enable(ATMEL_ID_USART0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020038}
39
40void at91_serial1_hw_init(void)
41{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010042 at91_set_a_periph(AT91_PIO_PORTB, 6, 1); /* TXD1 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020043 at91_set_a_periph(AT91_PIO_PORTB, 7, PUP); /* RXD1 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080044 at91_periph_clk_enable(ATMEL_ID_USART1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020045}
46
47void at91_serial2_hw_init(void)
48{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010049 at91_set_a_periph(AT91_PIO_PORTB, 8, 1); /* TXD2 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020050 at91_set_a_periph(AT91_PIO_PORTB, 9, PUP); /* RXD2 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080051 at91_periph_clk_enable(ATMEL_ID_USART2);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020052}
53
Reinhard Meyere260d0b2010-11-03 15:39:55 +010054void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020055{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020056 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010057 at91_set_a_periph(AT91_PIO_PORTB, 15, 1); /* DTXD */
Wenyou Yang57b7f292016-02-03 10:16:49 +080058 at91_periph_clk_enable(ATMEL_ID_SYS);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020059}
60
Albin Tonnerre4f572d82009-08-24 18:03:26 +020061#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020062void at91_spi0_hw_init(unsigned long cs_mask)
63{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020064 at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
65 at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
66 at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020067
Wenyou Yang57b7f292016-02-03 10:16:49 +080068 at91_periph_clk_enable(ATMEL_ID_SPI0);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020069
70 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010071 at91_set_a_periph(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020072 }
73 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010074 at91_set_b_periph(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020075 }
76 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010077 at91_set_b_periph(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020078 }
79 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010080 at91_set_b_periph(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020081 }
82 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010083 at91_set_pio_output(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020084 }
85 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010086 at91_set_pio_output(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020087 }
88 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010089 at91_set_pio_output(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020090 }
91 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010092 at91_set_pio_output(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020093 }
94}
95
96void at91_spi1_hw_init(unsigned long cs_mask)
97{
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020098 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
99 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
100 at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI1_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200101
Wenyou Yang57b7f292016-02-03 10:16:49 +0800102 at91_periph_clk_enable(ATMEL_ID_SPI1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200103
104 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100105 at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200106 }
107 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100108 at91_set_b_periph(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200109 }
110 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100111 at91_set_b_periph(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200112 }
113 if (cs_mask & (1 << 3)) {
Reinhard Meyer3da7e352011-07-25 21:56:04 +0000114 at91_set_b_periph(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200115 }
116 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100117 at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200118 }
119 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100120 at91_set_pio_output(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200121 }
122 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100123 at91_set_pio_output(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200124 }
125 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100126 at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200127 }
128}
129#endif
130
131#ifdef CONFIG_MACB
132void at91_macb_hw_init(void)
133{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800134 at91_periph_clk_enable(ATMEL_ID_EMAC0);
Markus Hubig33d678e2012-08-07 17:43:22 +0200135
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100136 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
137 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
138 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
139 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
140 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
141 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
142 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
143 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
144 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
145 at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200146
147#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100148 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
149 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
150 at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
151 at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
152 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
Masahiro Yamadae05deeb2015-04-08 18:15:53 +0900153#if defined(CONFIG_AT91SAM9260EK)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200154 /*
155 * use PA10, PA11 for ETX2, ETX3.
156 * PA23 and PA24 are for TWI EEPROM
157 */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100158 at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
159 at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200160#else
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100161 at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
162 at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
Reinhard Meyer146775f2010-12-01 05:49:53 +0100163#if defined(CONFIG_AT91SAM9G20)
164 /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
165 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
166 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
167#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200168#endif
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100169 at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200170#endif
171}
172#endif
Reinhard Meyerc718a562010-08-13 10:31:06 +0200173
Sven Schnelle69df6de2011-10-21 14:49:26 +0200174#if defined(CONFIG_GENERIC_ATMEL_MCI)
Reinhard Meyerc718a562010-08-13 10:31:06 +0200175void at91_mci_hw_init(void)
176{
Wenyou Yang57b7f292016-02-03 10:16:49 +0800177 at91_periph_clk_enable(ATMEL_ID_MCI);
Wu, Josh1a500d62013-03-28 20:28:41 +0000178
Reinhard Meyerc718a562010-08-13 10:31:06 +0200179 at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
180#if defined(CONFIG_ATMEL_MCI_PORTB)
181 at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
182 at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
183 at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
184 at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
185 at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
186#else
187 at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
188 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
189 at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
190 at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
191 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
192#endif
193}
194#endif
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +0100195
196void at91_sdram_hw_init(void)
197{
198 at91_set_a_periph(AT91_PIO_PORTC, 16, 0);
199 at91_set_a_periph(AT91_PIO_PORTC, 17, 0);
200 at91_set_a_periph(AT91_PIO_PORTC, 18, 0);
201 at91_set_a_periph(AT91_PIO_PORTC, 19, 0);
202 at91_set_a_periph(AT91_PIO_PORTC, 20, 0);
203 at91_set_a_periph(AT91_PIO_PORTC, 21, 0);
204 at91_set_a_periph(AT91_PIO_PORTC, 22, 0);
205 at91_set_a_periph(AT91_PIO_PORTC, 23, 0);
206 at91_set_a_periph(AT91_PIO_PORTC, 24, 0);
207 at91_set_a_periph(AT91_PIO_PORTC, 25, 0);
208 at91_set_a_periph(AT91_PIO_PORTC, 26, 0);
209 at91_set_a_periph(AT91_PIO_PORTC, 27, 0);
210 at91_set_a_periph(AT91_PIO_PORTC, 28, 0);
211 at91_set_a_periph(AT91_PIO_PORTC, 29, 0);
212 at91_set_a_periph(AT91_PIO_PORTC, 30, 0);
213 at91_set_a_periph(AT91_PIO_PORTC, 31, 0);
214}
Simon Glassc210f8b2014-10-29 13:08:58 -0600215
216/* Platform data for the GPIOs */
217static const struct at91_port_platdata at91sam9260_plat[] = {
218 { ATMEL_BASE_PIOA, "PA" },
219 { ATMEL_BASE_PIOB, "PB" },
220 { ATMEL_BASE_PIOC, "PC" },
221};
222
223U_BOOT_DEVICES(at91sam9260_gpios) = {
224 { "gpio_at91", &at91sam9260_plat[0] },
225 { "gpio_at91", &at91sam9260_plat[1] },
226 { "gpio_at91", &at91sam9260_plat[2] },
227};