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@@ -26,135 +26,131 @@
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_pmc.h>
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#include <asm/arch/at91_pmc.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/gpio.h>
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-#include <asm/arch/io.h>
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+#include <asm/io.h>
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+
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+/*
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+ * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
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+ * peripheral pins. Good to have if hardware is soldered optionally
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+ * or in case of SPI no slave is selected. Avoid lines to float
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+ * needlessly. Use a short local PUP define.
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+ *
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+ * Due to errata "TXD floats when CTS is inactive" pullups are always
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+ * on for TXD pins.
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+ */
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+#ifdef CONFIG_AT91_GPIO_PULLUP
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+# define PUP CONFIG_AT91_GPIO_PULLUP
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+#else
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+# define PUP 0
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+#endif
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void at91_serial0_hw_init(void)
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void at91_serial0_hw_init(void)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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at91_set_a_periph(AT91_PIO_PORTB, 19, 1); /* TXD0 */
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at91_set_a_periph(AT91_PIO_PORTB, 19, 1); /* TXD0 */
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- at91_set_a_periph(AT91_PIO_PORTB, 18, 0); /* RXD0 */
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- writel(1 << AT91SAM9G45_ID_US0, &pmc->pcer);
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+ at91_set_a_periph(AT91_PIO_PORTB, 18, PUP); /* RXD0 */
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+ writel(1 << ATMEL_ID_USART0, &pmc->pcer);
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}
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}
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void at91_serial1_hw_init(void)
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void at91_serial1_hw_init(void)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD1 */
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at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD1 */
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- at91_set_a_periph(AT91_PIO_PORTB, 5, 0); /* RXD1 */
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- writel(1 << AT91SAM9G45_ID_US1, &pmc->pcer);
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+ at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD1 */
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+ writel(1 << ATMEL_ID_USART1, &pmc->pcer);
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}
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}
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void at91_serial2_hw_init(void)
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void at91_serial2_hw_init(void)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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at91_set_a_periph(AT91_PIO_PORTD, 6, 1); /* TXD2 */
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at91_set_a_periph(AT91_PIO_PORTD, 6, 1); /* TXD2 */
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- at91_set_a_periph(AT91_PIO_PORTD, 7, 0); /* RXD2 */
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- writel(1 << AT91SAM9G45_ID_US2, &pmc->pcer);
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+ at91_set_a_periph(AT91_PIO_PORTD, 7, PUP); /* RXD2 */
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+ writel(1 << ATMEL_ID_USART2, &pmc->pcer);
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}
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}
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-void at91_serial3_hw_init(void)
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+void at91_seriald_hw_init(void)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* DRXD */
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at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* DRXD */
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at91_set_a_periph(AT91_PIO_PORTB, 13, 1); /* DTXD */
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at91_set_a_periph(AT91_PIO_PORTB, 13, 1); /* DTXD */
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- writel(1 << AT91_ID_SYS, &pmc->pcer);
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-}
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-
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-void at91_serial_hw_init(void)
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-{
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-#ifdef CONFIG_USART0
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- at91_serial0_hw_init();
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-#endif
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-
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-#ifdef CONFIG_USART1
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- at91_serial1_hw_init();
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-#endif
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-
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-#ifdef CONFIG_USART2
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- at91_serial2_hw_init();
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-#endif
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-
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-#ifdef CONFIG_USART3 /* DBGU */
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- at91_serial3_hw_init();
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-#endif
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+ writel(1 << ATMEL_ID_SYS, &pmc->pcer);
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}
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}
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-#ifdef CONFIG_ATMEL_SPI
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+#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
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void at91_spi0_hw_init(unsigned long cs_mask)
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void at91_spi0_hw_init(unsigned long cs_mask)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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- at91_set_a_periph(AT91_PIO_PORTB, 0, 0); /* SPI0_MISO */
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- at91_set_a_periph(AT91_PIO_PORTB, 1, 0); /* SPI0_MOSI */
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- at91_set_a_periph(AT91_PIO_PORTB, 2, 0); /* SPI0_SPCK */
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+ at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI0_MISO */
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+ at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI0_MOSI */
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+ at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI0_SPCK */
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/* Enable clock */
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/* Enable clock */
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- writel(1 << AT91SAM9G45_ID_SPI0, &pmc->pcer);
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+ writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
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if (cs_mask & (1 << 0)) {
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if (cs_mask & (1 << 0)) {
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- at91_set_a_periph(AT91_PIO_PORTB, 3, 0);
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+ at91_set_a_periph(AT91_PIO_PORTB, 3, 1);
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}
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}
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if (cs_mask & (1 << 1)) {
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if (cs_mask & (1 << 1)) {
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- at91_set_b_periph(AT91_PIO_PORTB, 18, 0);
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+ at91_set_b_periph(AT91_PIO_PORTB, 18, 1);
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}
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}
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if (cs_mask & (1 << 2)) {
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if (cs_mask & (1 << 2)) {
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- at91_set_b_periph(AT91_PIO_PORTB, 19, 0);
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+ at91_set_b_periph(AT91_PIO_PORTB, 19, 1);
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}
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}
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if (cs_mask & (1 << 3)) {
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if (cs_mask & (1 << 3)) {
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- at91_set_b_periph(AT91_PIO_PORTD, 27, 0);
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+ at91_set_b_periph(AT91_PIO_PORTD, 27, 1);
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}
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}
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if (cs_mask & (1 << 4)) {
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if (cs_mask & (1 << 4)) {
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- at91_set_pio_output(AT91_PIO_PORTB, 3, 0);
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+ at91_set_pio_output(AT91_PIO_PORTB, 3, 1);
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}
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}
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if (cs_mask & (1 << 5)) {
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if (cs_mask & (1 << 5)) {
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- at91_set_pio_output(AT91_PIO_PORTB, 18, 0);
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+ at91_set_pio_output(AT91_PIO_PORTB, 18, 1);
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}
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}
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if (cs_mask & (1 << 6)) {
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if (cs_mask & (1 << 6)) {
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- at91_set_pio_output(AT91_PIO_PORTB, 19, 0);
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+ at91_set_pio_output(AT91_PIO_PORTB, 19, 1);
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}
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}
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if (cs_mask & (1 << 7)) {
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if (cs_mask & (1 << 7)) {
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- at91_set_pio_output(AT91_PIO_PORTD, 27, 0);
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+ at91_set_pio_output(AT91_PIO_PORTD, 27, 1);
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}
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}
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}
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}
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void at91_spi1_hw_init(unsigned long cs_mask)
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void at91_spi1_hw_init(unsigned long cs_mask)
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{
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{
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- at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
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+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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- at91_set_a_periph(AT91_PIO_PORTB, 14, 0); /* SPI1_MISO */
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- at91_set_a_periph(AT91_PIO_PORTB, 15, 0); /* SPI1_MOSI */
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- at91_set_a_periph(AT91_PIO_PORTB, 16, 0); /* SPI1_SPCK */
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+ at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_MISO */
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+ at91_set_a_periph(AT91_PIO_PORTB, 15, PUP); /* SPI1_MOSI */
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+ at91_set_a_periph(AT91_PIO_PORTB, 16, PUP); /* SPI1_SPCK */
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/* Enable clock */
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/* Enable clock */
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- writel(1 << AT91SAM9G45_ID_SPI1, &pmc->pcer);
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+ writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
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if (cs_mask & (1 << 0)) {
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if (cs_mask & (1 << 0)) {
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- at91_set_a_periph(AT91_PIO_PORTB, 17, 0);
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+ at91_set_a_periph(AT91_PIO_PORTB, 17, 1);
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}
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}
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if (cs_mask & (1 << 1)) {
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if (cs_mask & (1 << 1)) {
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- at91_set_b_periph(AT91_PIO_PORTD, 28, 0);
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+ at91_set_b_periph(AT91_PIO_PORTD, 28, 1);
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}
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}
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if (cs_mask & (1 << 2)) {
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if (cs_mask & (1 << 2)) {
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- at91_set_a_periph(AT91_PIO_PORTD, 18, 0);
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+ at91_set_a_periph(AT91_PIO_PORTD, 18, 1);
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}
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}
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if (cs_mask & (1 << 3)) {
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if (cs_mask & (1 << 3)) {
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- at91_set_a_periph(AT91_PIO_PORTD, 19, 0);
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+ at91_set_a_periph(AT91_PIO_PORTD, 19, 1);
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}
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}
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if (cs_mask & (1 << 4)) {
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if (cs_mask & (1 << 4)) {
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- at91_set_pio_output(AT91_PIO_PORTB, 17, 0);
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+ at91_set_pio_output(AT91_PIO_PORTB, 17, 1);
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}
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}
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if (cs_mask & (1 << 5)) {
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if (cs_mask & (1 << 5)) {
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- at91_set_pio_output(AT91_PIO_PORTD, 28, 0);
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+ at91_set_pio_output(AT91_PIO_PORTD, 28, 1);
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}
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}
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if (cs_mask & (1 << 6)) {
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if (cs_mask & (1 << 6)) {
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- at91_set_pio_output(AT91_PIO_PORTD, 18, 0);
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+ at91_set_pio_output(AT91_PIO_PORTD, 18, 1);
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}
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}
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if (cs_mask & (1 << 7)) {
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if (cs_mask & (1 << 7)) {
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- at91_set_pio_output(AT91_PIO_PORTD, 19, 0);
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+ at91_set_pio_output(AT91_PIO_PORTD, 19, 1);
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}
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}
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}
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}
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