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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>
14#include <asm/arch/at91_pmc.h>
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +010015#include <asm/arch/at91sam9_sdramc.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{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010035 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010036
Jens Scharsigb49d15c2010-02-03 22:46:46 +010037 at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD0 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020038 at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD0 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010039 writel(1 << ATMEL_ID_USART0, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020040}
41
42void at91_serial1_hw_init(void)
43{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010044 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010045
Jens Scharsigb49d15c2010-02-03 22:46:46 +010046 at91_set_a_periph(AT91_PIO_PORTB, 6, 1); /* TXD1 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020047 at91_set_a_periph(AT91_PIO_PORTB, 7, PUP); /* RXD1 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010048 writel(1 << ATMEL_ID_USART1, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020049}
50
51void at91_serial2_hw_init(void)
52{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010053 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010054
Jens Scharsigb49d15c2010-02-03 22:46:46 +010055 at91_set_a_periph(AT91_PIO_PORTB, 8, 1); /* TXD2 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020056 at91_set_a_periph(AT91_PIO_PORTB, 9, PUP); /* RXD2 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010057 writel(1 << ATMEL_ID_USART2, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020058}
59
Reinhard Meyere260d0b2010-11-03 15:39:55 +010060void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020061{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010062 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010063
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020064 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010065 at91_set_a_periph(AT91_PIO_PORTB, 15, 1); /* DTXD */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010066 writel(1 << ATMEL_ID_SYS, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020067}
68
Albin Tonnerre4f572d82009-08-24 18:03:26 +020069#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020070void at91_spi0_hw_init(unsigned long cs_mask)
71{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010072 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010073
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020074 at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
75 at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
76 at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020077
78 /* Enable clock */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010079 writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020080
81 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010082 at91_set_a_periph(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020083 }
84 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010085 at91_set_b_periph(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020086 }
87 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010088 at91_set_b_periph(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020089 }
90 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010091 at91_set_b_periph(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020092 }
93 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010094 at91_set_pio_output(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020095 }
96 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010097 at91_set_pio_output(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020098 }
99 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100100 at91_set_pio_output(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200101 }
102 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100103 at91_set_pio_output(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200104 }
105}
106
107void at91_spi1_hw_init(unsigned long cs_mask)
108{
Reinhard Meyere260d0b2010-11-03 15:39:55 +0100109 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +0100110
Reinhard Meyer6348f1d2010-08-25 12:32:53 +0200111 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
112 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
113 at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI1_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200114
115 /* Enable clock */
Reinhard Meyere260d0b2010-11-03 15:39:55 +0100116 writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200117
118 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100119 at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200120 }
121 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100122 at91_set_b_periph(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200123 }
124 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100125 at91_set_b_periph(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200126 }
127 if (cs_mask & (1 << 3)) {
Reinhard Meyer3da7e352011-07-25 21:56:04 +0000128 at91_set_b_periph(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200129 }
130 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100131 at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200132 }
133 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100134 at91_set_pio_output(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200135 }
136 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100137 at91_set_pio_output(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200138 }
139 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100140 at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200141 }
142}
143#endif
144
145#ifdef CONFIG_MACB
146void at91_macb_hw_init(void)
147{
Markus Hubig33d678e2012-08-07 17:43:22 +0200148 /* Enable EMAC clock */
149 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
150 writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
151
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100152 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
153 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
154 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
155 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
156 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
157 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
158 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
159 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
160 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
161 at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200162
163#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100164 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
165 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
166 at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
167 at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
168 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
Masahiro Yamadae05deeb2015-04-08 18:15:53 +0900169#if defined(CONFIG_AT91SAM9260EK)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200170 /*
171 * use PA10, PA11 for ETX2, ETX3.
172 * PA23 and PA24 are for TWI EEPROM
173 */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100174 at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
175 at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200176#else
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100177 at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
178 at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
Reinhard Meyer146775f2010-12-01 05:49:53 +0100179#if defined(CONFIG_AT91SAM9G20)
180 /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
181 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
182 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
183#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200184#endif
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100185 at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200186#endif
187}
188#endif
Reinhard Meyerc718a562010-08-13 10:31:06 +0200189
Sven Schnelle69df6de2011-10-21 14:49:26 +0200190#if defined(CONFIG_GENERIC_ATMEL_MCI)
Reinhard Meyerc718a562010-08-13 10:31:06 +0200191void at91_mci_hw_init(void)
192{
Wu, Josh1a500d62013-03-28 20:28:41 +0000193 /* Enable mci clock */
194 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
195 writel(1 << ATMEL_ID_MCI, &pmc->pcer);
196
Reinhard Meyerc718a562010-08-13 10:31:06 +0200197 at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
198#if defined(CONFIG_ATMEL_MCI_PORTB)
199 at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
200 at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
201 at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
202 at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
203 at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
204#else
205 at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
206 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
207 at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
208 at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
209 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
210#endif
211}
212#endif
Heiko Schocherf1e3a8c2014-10-31 08:31:04 +0100213
214void at91_sdram_hw_init(void)
215{
216 at91_set_a_periph(AT91_PIO_PORTC, 16, 0);
217 at91_set_a_periph(AT91_PIO_PORTC, 17, 0);
218 at91_set_a_periph(AT91_PIO_PORTC, 18, 0);
219 at91_set_a_periph(AT91_PIO_PORTC, 19, 0);
220 at91_set_a_periph(AT91_PIO_PORTC, 20, 0);
221 at91_set_a_periph(AT91_PIO_PORTC, 21, 0);
222 at91_set_a_periph(AT91_PIO_PORTC, 22, 0);
223 at91_set_a_periph(AT91_PIO_PORTC, 23, 0);
224 at91_set_a_periph(AT91_PIO_PORTC, 24, 0);
225 at91_set_a_periph(AT91_PIO_PORTC, 25, 0);
226 at91_set_a_periph(AT91_PIO_PORTC, 26, 0);
227 at91_set_a_periph(AT91_PIO_PORTC, 27, 0);
228 at91_set_a_periph(AT91_PIO_PORTC, 28, 0);
229 at91_set_a_periph(AT91_PIO_PORTC, 29, 0);
230 at91_set_a_periph(AT91_PIO_PORTC, 30, 0);
231 at91_set_a_periph(AT91_PIO_PORTC, 31, 0);
232}
Simon Glassc210f8b2014-10-29 13:08:58 -0600233
234/* Platform data for the GPIOs */
235static const struct at91_port_platdata at91sam9260_plat[] = {
236 { ATMEL_BASE_PIOA, "PA" },
237 { ATMEL_BASE_PIOB, "PB" },
238 { ATMEL_BASE_PIOC, "PC" },
239};
240
241U_BOOT_DEVICES(at91sam9260_gpios) = {
242 { "gpio_at91", &at91sam9260_plat[0] },
243 { "gpio_at91", &at91sam9260_plat[1] },
244 { "gpio_at91", &at91sam9260_plat[2] },
245};