--- /dev/null
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+
+/*
+ * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
+ * peripheral pins. Good to have if hardware is soldered optionally
+ * or in case of SPI no slave is selected. Avoid lines to float
+ * needlessly. Use a short local PUP define.
+ *
+ * Due to errata "TXD floats when CTS is inactive" pullups are always
+ * on for TXD pins.
+ */
+#ifdef CONFIG_AT91_GPIO_PULLUP
+# define PUP CONFIG_AT91_GPIO_PULLUP
+#else
+# define PUP 0
+#endif
+
+void at91_serial0_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTB, 19, 1); /* TXD0 */
+ at91_set_a_periph(AT91_PIO_PORTB, 18, PUP); /* RXD0 */
+ writel(1 << ATMEL_ID_USART0, &pmc->pcer);
+}
+
+void at91_serial1_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD1 */
+ at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD1 */
+ writel(1 << ATMEL_ID_USART1, &pmc->pcer);
+}
+
+void at91_serial2_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTD, 6, 1); /* TXD2 */
+ at91_set_a_periph(AT91_PIO_PORTD, 7, PUP); /* RXD2 */
+ writel(1 << ATMEL_ID_USART2, &pmc->pcer);
+}
+
+void at91_seriald_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* DRXD */
+ at91_set_a_periph(AT91_PIO_PORTB, 13, 1); /* DTXD */
+ writel(1 << ATMEL_ID_SYS, &pmc->pcer);
+}
+
+#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI0_MISO */
+ at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI0_MOSI */
+ at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI0_SPCK */
+
+ /* Enable clock */
+ writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
+
+ if (cs_mask & (1 << 0)) {
+ at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
+ }
+ if (cs_mask & (1 << 1)) {
+ at91_set_b_periph(AT91_PIO_PORTB, 18, 1);
+ }
+ if (cs_mask & (1 << 2)) {
+ at91_set_b_periph(AT91_PIO_PORTB, 19, 1);
+ }
+ if (cs_mask & (1 << 3)) {
+ at91_set_b_periph(AT91_PIO_PORTD, 27, 1);
+ }
+ if (cs_mask & (1 << 4)) {
+ at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
+ }
+ if (cs_mask & (1 << 5)) {
+ at91_set_pio_output(AT91_PIO_PORTB, 18, 1);
+ }
+ if (cs_mask & (1 << 6)) {
+ at91_set_pio_output(AT91_PIO_PORTB, 19, 1);
+ }
+ if (cs_mask & (1 << 7)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 27, 1);
+ }
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_MISO */
+ at91_set_a_periph(AT91_PIO_PORTB, 15, PUP); /* SPI1_MOSI */
+ at91_set_a_periph(AT91_PIO_PORTB, 16, PUP); /* SPI1_SPCK */
+
+ /* Enable clock */
+ writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
+
+ if (cs_mask & (1 << 0)) {
+ at91_set_a_periph(AT91_PIO_PORTB, 17, 1);
+ }
+ if (cs_mask & (1 << 1)) {
+ at91_set_b_periph(AT91_PIO_PORTD, 28, 1);
+ }
+ if (cs_mask & (1 << 2)) {
+ at91_set_a_periph(AT91_PIO_PORTD, 18, 1);
+ }
+ if (cs_mask & (1 << 3)) {
+ at91_set_a_periph(AT91_PIO_PORTD, 19, 1);
+ }
+ if (cs_mask & (1 << 4)) {
+ at91_set_pio_output(AT91_PIO_PORTB, 17, 1);
+ }
+ if (cs_mask & (1 << 5)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 28, 1);
+ }
+ if (cs_mask & (1 << 6)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 18, 1);
+ }
+ if (cs_mask & (1 << 7)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 19, 1);
+ }
+
+}
+#endif
+
+#ifdef CONFIG_MACB
+void at91_macb_hw_init(void)
+{
+ at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ETXCK_EREFCK */
+ at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERXDV */
+ at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ERX0 */
+ at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ERX1 */
+ at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ERXER */
+ at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ETXEN */
+ at91_set_a_periph(AT91_PIO_PORTA, 10, 0); /* ETX0 */
+ at91_set_a_periph(AT91_PIO_PORTA, 11, 0); /* ETX1 */
+ at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* EMDIO */
+ at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* EMDC */
+#ifndef CONFIG_RMII
+ at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECRS */
+ at91_set_b_periph(AT91_PIO_PORTA, 30, 0); /* ECOL */
+ at91_set_b_periph(AT91_PIO_PORTA, 8, 0); /* ERX2 */
+ at91_set_b_periph(AT91_PIO_PORTA, 9, 0); /* ERX3 */
+ at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ERXCK */
+ at91_set_b_periph(AT91_PIO_PORTA, 6, 0); /* ETX2 */
+ at91_set_b_periph(AT91_PIO_PORTA, 7, 0); /* ETX3 */
+ at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ETXER */
+#endif
+}
+#endif
Code Review / kvmfornfv.git / blobdiff