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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>
Reinhard Meyerb06208c2010-11-07 13:26:14 +010010#include <asm/io.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020011#include <asm/arch/at91_common.h>
12#include <asm/arch/at91_pmc.h>
13#include <asm/arch/gpio.h>
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020014
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020015/*
16 * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
17 * peripheral pins. Good to have if hardware is soldered optionally
18 * or in case of SPI no slave is selected. Avoid lines to float
19 * needlessly. Use a short local PUP define.
20 *
21 * Due to errata "TXD floats when CTS is inactive" pullups are always
22 * on for TXD pins.
23 */
24#ifdef CONFIG_AT91_GPIO_PULLUP
25# define PUP CONFIG_AT91_GPIO_PULLUP
26#else
27# define PUP 0
28#endif
29
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020030void at91_serial0_hw_init(void)
31{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010032 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010033
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 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010036 writel(1 << ATMEL_ID_USART0, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020037}
38
39void at91_serial1_hw_init(void)
40{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010041 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010042
Jens Scharsigb49d15c2010-02-03 22:46:46 +010043 at91_set_a_periph(AT91_PIO_PORTB, 6, 1); /* TXD1 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020044 at91_set_a_periph(AT91_PIO_PORTB, 7, PUP); /* RXD1 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010045 writel(1 << ATMEL_ID_USART1, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020046}
47
48void at91_serial2_hw_init(void)
49{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010050 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010051
Jens Scharsigb49d15c2010-02-03 22:46:46 +010052 at91_set_a_periph(AT91_PIO_PORTB, 8, 1); /* TXD2 */
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020053 at91_set_a_periph(AT91_PIO_PORTB, 9, PUP); /* RXD2 */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010054 writel(1 << ATMEL_ID_USART2, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020055}
56
Reinhard Meyere260d0b2010-11-03 15:39:55 +010057void at91_seriald_hw_init(void)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020058{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010059 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010060
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020061 at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
Jens Scharsigb49d15c2010-02-03 22:46:46 +010062 at91_set_a_periph(AT91_PIO_PORTB, 15, 1); /* DTXD */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010063 writel(1 << ATMEL_ID_SYS, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020064}
65
Albin Tonnerre4f572d82009-08-24 18:03:26 +020066#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020067void at91_spi0_hw_init(unsigned long cs_mask)
68{
Reinhard Meyere260d0b2010-11-03 15:39:55 +010069 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +010070
Reinhard Meyer6348f1d2010-08-25 12:32:53 +020071 at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
72 at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
73 at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020074
75 /* Enable clock */
Reinhard Meyere260d0b2010-11-03 15:39:55 +010076 writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020077
78 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010079 at91_set_a_periph(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020080 }
81 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010082 at91_set_b_periph(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020083 }
84 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010085 at91_set_b_periph(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020086 }
87 if (cs_mask & (1 << 3)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010088 at91_set_b_periph(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020089 }
90 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010091 at91_set_pio_output(AT91_PIO_PORTA, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020092 }
93 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010094 at91_set_pio_output(AT91_PIO_PORTC, 11, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020095 }
96 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +010097 at91_set_pio_output(AT91_PIO_PORTC, 16, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +020098 }
99 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100100 at91_set_pio_output(AT91_PIO_PORTC, 17, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200101 }
102}
103
104void at91_spi1_hw_init(unsigned long cs_mask)
105{
Reinhard Meyere260d0b2010-11-03 15:39:55 +0100106 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
Jens Scharsiga4db1ca2010-02-03 22:46:58 +0100107
Reinhard Meyer6348f1d2010-08-25 12:32:53 +0200108 at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
109 at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
110 at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI1_SPCK */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200111
112 /* Enable clock */
Reinhard Meyere260d0b2010-11-03 15:39:55 +0100113 writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200114
115 if (cs_mask & (1 << 0)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100116 at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200117 }
118 if (cs_mask & (1 << 1)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100119 at91_set_b_periph(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200120 }
121 if (cs_mask & (1 << 2)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100122 at91_set_b_periph(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200123 }
124 if (cs_mask & (1 << 3)) {
Reinhard Meyer3da7e352011-07-25 21:56:04 +0000125 at91_set_b_periph(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200126 }
127 if (cs_mask & (1 << 4)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100128 at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200129 }
130 if (cs_mask & (1 << 5)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100131 at91_set_pio_output(AT91_PIO_PORTC, 5, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200132 }
133 if (cs_mask & (1 << 6)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100134 at91_set_pio_output(AT91_PIO_PORTC, 4, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200135 }
136 if (cs_mask & (1 << 7)) {
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100137 at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200138 }
139}
140#endif
141
142#ifdef CONFIG_MACB
143void at91_macb_hw_init(void)
144{
Markus Hubig33d678e2012-08-07 17:43:22 +0200145 /* Enable EMAC clock */
146 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
147 writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
148
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100149 at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
150 at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
151 at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
152 at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
153 at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
154 at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
155 at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
156 at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
157 at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
158 at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200159
160#ifndef CONFIG_RMII
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100161 at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
162 at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
163 at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
164 at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
165 at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
Jean-Christophe PLAGNIOL-VILLARD56dc2fd2009-05-16 10:02:05 +0200166#if defined(CONFIG_AT91SAM9260EK) || defined(CONFIG_AFEB9260)
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200167 /*
168 * use PA10, PA11 for ETX2, ETX3.
169 * PA23 and PA24 are for TWI EEPROM
170 */
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100171 at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
172 at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200173#else
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100174 at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
175 at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
Reinhard Meyer146775f2010-12-01 05:49:53 +0100176#if defined(CONFIG_AT91SAM9G20)
177 /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
178 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
179 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
180#endif
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200181#endif
Jens Scharsigb49d15c2010-02-03 22:46:46 +0100182 at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
Jean-Christophe PLAGNIOL-VILLARD2495b2d2009-05-13 21:01:13 +0200183#endif
184}
185#endif
Reinhard Meyerc718a562010-08-13 10:31:06 +0200186
Sven Schnelle69df6de2011-10-21 14:49:26 +0200187#if defined(CONFIG_GENERIC_ATMEL_MCI)
Reinhard Meyerc718a562010-08-13 10:31:06 +0200188void at91_mci_hw_init(void)
189{
Wu, Josh1a500d62013-03-28 20:28:41 +0000190 /* Enable mci clock */
191 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
192 writel(1 << ATMEL_ID_MCI, &pmc->pcer);
193
Reinhard Meyerc718a562010-08-13 10:31:06 +0200194 at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
195#if defined(CONFIG_ATMEL_MCI_PORTB)
196 at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
197 at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
198 at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
199 at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
200 at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
201#else
202 at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
203 at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
204 at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
205 at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
206 at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
207#endif
208}
209#endif