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Sedji Gaouaou538566d2009-07-09 10:16:29 +02001/*
2 * (C) Copyright 2007-2008
Stelian Pop5ee0c7f2011-11-01 00:00:39 +01003 * Stelian Pop <stelian@popies.net>
Sedji Gaouaou538566d2009-07-09 10:16:29 +02004 * Lead Tech Design <www.leadtechdesign.com>
5 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Sedji Gaouaou538566d2009-07-09 10:16:29 +02007 */
8
9#include <common.h>
Simon Glass46ecd232016-05-05 07:28:17 -060010#include <dm.h>
Sedji Gaouaou538566d2009-07-09 10:16:29 +020011#include <asm/arch/at91_common.h>
Wenyou Yang57b7f292016-02-03 10:16:49 +080012#include <asm/arch/clk.h>
Sedji Gaouaou538566d2009-07-09 10:16:29 +020013#include <asm/arch/gpio.h>
Thomas Petazzonib0263c52011-08-04 08:53:29 +000014#include <asm/io.h>
15
16/*
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
Sedji Gaouaou538566d2009-07-09 10:16:29 +020030
31void at91_serial0_hw_init(void)
32{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010033 at91_set_a_periph(AT91_PIO_PORTB, 19, 1); /* TXD0 */
Thomas Petazzonib0263c52011-08-04 08:53:29 +000034 at91_set_a_periph(AT91_PIO_PORTB, 18, PUP); /* RXD0 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080035 at91_periph_clk_enable(ATMEL_ID_USART0);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020036}
37
38void at91_serial1_hw_init(void)
39{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010040 at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD1 */
Thomas Petazzonib0263c52011-08-04 08:53:29 +000041 at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD1 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080042 at91_periph_clk_enable(ATMEL_ID_USART1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020043}
44
45void at91_serial2_hw_init(void)
46{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010047 at91_set_a_periph(AT91_PIO_PORTD, 6, 1); /* TXD2 */
Thomas Petazzonib0263c52011-08-04 08:53:29 +000048 at91_set_a_periph(AT91_PIO_PORTD, 7, PUP); /* RXD2 */
Wenyou Yang57b7f292016-02-03 10:16:49 +080049 at91_periph_clk_enable(ATMEL_ID_USART2);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020050}
51
Thomas Petazzonib0263c52011-08-04 08:53:29 +000052void at91_seriald_hw_init(void)
Sedji Gaouaou538566d2009-07-09 10:16:29 +020053{
Jens Scharsigb49d15c2010-02-03 22:46:46 +010054 at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* DRXD */
55 at91_set_a_periph(AT91_PIO_PORTB, 13, 1); /* DTXD */
Wenyou Yang57b7f292016-02-03 10:16:49 +080056 at91_periph_clk_enable(ATMEL_ID_SYS);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020057}
58
Thomas Petazzonib0263c52011-08-04 08:53:29 +000059#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
Sedji Gaouaou538566d2009-07-09 10:16:29 +020060void at91_spi0_hw_init(unsigned long cs_mask)
61{
Thomas Petazzonib0263c52011-08-04 08:53:29 +000062 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI0_MISO */
63 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI0_MOSI */
64 at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI0_SPCK */
Sedji Gaouaou538566d2009-07-09 10:16:29 +020065
Wenyou Yang57b7f292016-02-03 10:16:49 +080066 at91_periph_clk_enable(ATMEL_ID_SPI0);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020067
68 if (cs_mask & (1 << 0)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000069 at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020070 }
71 if (cs_mask & (1 << 1)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000072 at91_set_b_periph(AT91_PIO_PORTB, 18, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020073 }
74 if (cs_mask & (1 << 2)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000075 at91_set_b_periph(AT91_PIO_PORTB, 19, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020076 }
77 if (cs_mask & (1 << 3)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000078 at91_set_b_periph(AT91_PIO_PORTD, 27, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020079 }
80 if (cs_mask & (1 << 4)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000081 at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020082 }
83 if (cs_mask & (1 << 5)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000084 at91_set_pio_output(AT91_PIO_PORTB, 18, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020085 }
86 if (cs_mask & (1 << 6)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000087 at91_set_pio_output(AT91_PIO_PORTB, 19, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020088 }
89 if (cs_mask & (1 << 7)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +000090 at91_set_pio_output(AT91_PIO_PORTD, 27, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +020091 }
92}
93
94void at91_spi1_hw_init(unsigned long cs_mask)
95{
Thomas Petazzonib0263c52011-08-04 08:53:29 +000096 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_MISO */
97 at91_set_a_periph(AT91_PIO_PORTB, 15, PUP); /* SPI1_MOSI */
98 at91_set_a_periph(AT91_PIO_PORTB, 16, PUP); /* SPI1_SPCK */
Sedji Gaouaou538566d2009-07-09 10:16:29 +020099
Wenyou Yang57b7f292016-02-03 10:16:49 +0800100 at91_periph_clk_enable(ATMEL_ID_SPI1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200101
102 if (cs_mask & (1 << 0)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000103 at91_set_a_periph(AT91_PIO_PORTB, 17, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200104 }
105 if (cs_mask & (1 << 1)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000106 at91_set_b_periph(AT91_PIO_PORTD, 28, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200107 }
108 if (cs_mask & (1 << 2)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000109 at91_set_a_periph(AT91_PIO_PORTD, 18, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200110 }
111 if (cs_mask & (1 << 3)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000112 at91_set_a_periph(AT91_PIO_PORTD, 19, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200113 }
114 if (cs_mask & (1 << 4)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000115 at91_set_pio_output(AT91_PIO_PORTB, 17, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200116 }
117 if (cs_mask & (1 << 5)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000118 at91_set_pio_output(AT91_PIO_PORTD, 28, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200119 }
120 if (cs_mask & (1 << 6)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000121 at91_set_pio_output(AT91_PIO_PORTD, 18, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200122 }
123 if (cs_mask & (1 << 7)) {
Thomas Petazzonib0263c52011-08-04 08:53:29 +0000124 at91_set_pio_output(AT91_PIO_PORTD, 19, 1);
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200125 }
126
127}
128#endif
129
130#ifdef CONFIG_MACB
131void at91_macb_hw_init(void)
132{
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100133 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ETXCK_EREFCK */
134 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERXDV */
135 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ERX0 */
136 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ERX1 */
137 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ERXER */
138 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ETXEN */
139 at91_set_a_periph(AT91_PIO_PORTA, 10, 0); /* ETX0 */
140 at91_set_a_periph(AT91_PIO_PORTA, 11, 0); /* ETX1 */
141 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* EMDIO */
142 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* EMDC */
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200143#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100144 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECRS */
145 at91_set_b_periph(AT91_PIO_PORTA, 30, 0); /* ECOL */
146 at91_set_b_periph(AT91_PIO_PORTA, 8, 0); /* ERX2 */
147 at91_set_b_periph(AT91_PIO_PORTA, 9, 0); /* ERX3 */
148 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ERXCK */
149 at91_set_b_periph(AT91_PIO_PORTA, 6, 0); /* ETX2 */
150 at91_set_b_periph(AT91_PIO_PORTA, 7, 0); /* ETX3 */
151 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ETXER */
Sedji Gaouaou538566d2009-07-09 10:16:29 +0200152#endif
153}
154#endif
Wu, Joshdff665a2014-05-21 10:42:15 +0800155
156#ifdef CONFIG_GENERIC_ATMEL_MCI
157void at91_mci_hw_init(void)
158{
Wu, Joshdff665a2014-05-21 10:42:15 +0800159 at91_set_a_periph(AT91_PIO_PORTA, 0, 0); /* MCI0 CLK */
160 at91_set_a_periph(AT91_PIO_PORTA, 1, 0); /* MCI0 CDA */
161 at91_set_a_periph(AT91_PIO_PORTA, 2, 0); /* MCI0 DA0 */
162 at91_set_a_periph(AT91_PIO_PORTA, 3, 0); /* MCI0 DA1 */
163 at91_set_a_periph(AT91_PIO_PORTA, 4, 0); /* MCI0 DA2 */
164 at91_set_a_periph(AT91_PIO_PORTA, 5, 0); /* MCI0 DA3 */
165
Wenyou Yang57b7f292016-02-03 10:16:49 +0800166 at91_periph_clk_enable(ATMEL_ID_MCI0);
Wu, Joshdff665a2014-05-21 10:42:15 +0800167}
168#endif
Simon Glass46ecd232016-05-05 07:28:17 -0600169
170/* Platform data for the GPIOs */
171static const struct at91_port_platdata at91sam9260_plat[] = {
172 { ATMEL_BASE_PIOA, "PA" },
173 { ATMEL_BASE_PIOB, "PB" },
174 { ATMEL_BASE_PIOC, "PC" },
175 { ATMEL_BASE_PIOD, "PD" },
176 { ATMEL_BASE_PIOE, "PE" },
177};
178
179U_BOOT_DEVICES(at91sam9260_gpios) = {
180 { "gpio_at91", &at91sam9260_plat[0] },
181 { "gpio_at91", &at91sam9260_plat[1] },
182 { "gpio_at91", &at91sam9260_plat[2] },
183 { "gpio_at91", &at91sam9260_plat[3] },
184 { "gpio_at91", &at91sam9260_plat[4] },
185};