+/*
+ * Copyright (C) 2012 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+
+unsigned int get_chip_id(void)
+{
+ /* The 0x40 is the offset of cidr in DBGU */
+ return readl(ATMEL_BASE_DBGU + 0x40) & ~ARCH_ID_VERSION_MASK;
+}
+
+unsigned int get_extension_chip_id(void)
+{
+ /* The 0x44 is the offset of exid in DBGU */
+ return readl(ATMEL_BASE_DBGU + 0x44);
+}
+
+unsigned int has_emac1()
+{
+ return cpu_is_at91sam9x25();
+}
+
+unsigned int has_emac0()
+{
+ return !(cpu_is_at91sam9g15());
+}
+
+unsigned int has_lcdc()
+{
+ return cpu_is_at91sam9g15() || cpu_is_at91sam9g35()
+ || cpu_is_at91sam9x35();
+}
+
+char *get_cpu_name()
+{
+ unsigned int extension_id = get_extension_chip_id();
+
+ if (cpu_is_at91sam9x5()) {
+ switch (extension_id) {
+ case ARCH_EXID_AT91SAM9G15:
+ return CONFIG_SYS_AT91_G15_CPU_NAME;
+ case ARCH_EXID_AT91SAM9G25:
+ return CONFIG_SYS_AT91_G25_CPU_NAME;
+ case ARCH_EXID_AT91SAM9G35:
+ return CONFIG_SYS_AT91_G35_CPU_NAME;
+ case ARCH_EXID_AT91SAM9X25:
+ return CONFIG_SYS_AT91_X25_CPU_NAME;
+ case ARCH_EXID_AT91SAM9X35:
+ return CONFIG_SYS_AT91_X35_CPU_NAME;
+ default:
+ return CONFIG_SYS_AT91_UNKNOWN_CPU;
+ }
+ } else {
+ return CONFIG_SYS_AT91_UNKNOWN_CPU;
+ }
+}
+
+void at91_seriald_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 9, 0); /* DRXD */
+ at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* DTXD */
+
+ writel(1 << ATMEL_ID_SYS, &pmc->pcer);
+}
+
+void at91_serial0_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 0, 1); /* TXD */
+ at91_set_a_periph(AT91_PIO_PORTA, 1, 0); /* RXD */
+
+ 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_PORTA, 5, 1); /* TXD */
+ at91_set_a_periph(AT91_PIO_PORTA, 6, 0); /* RXD */
+
+ 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_PORTA, 7, 1); /* TXD */
+ at91_set_a_periph(AT91_PIO_PORTA, 8, 0); /* RXD */
+
+ writel(1 << ATMEL_ID_USART2, &pmc->pcer);
+}
+
+#ifdef CONFIG_ATMEL_SPI
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_PMC_BASE;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 11, 0); /* SPI0_MISO */
+ at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* SPI0_MOSI */
+ at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* SPI0_SPCK */
+
+ /* Enable clock */
+ writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
+
+ if (cs_mask & (1 << 0))
+ at91_set_a_periph(AT91_PIO_PORTA, 14, 0);
+ if (cs_mask & (1 << 1))
+ at91_set_b_periph(AT91_PIO_PORTA, 7, 0);
+ if (cs_mask & (1 << 2))
+ at91_set_b_periph(AT91_PIO_PORTA, 1, 0);
+ if (cs_mask & (1 << 3))
+ at91_set_b_periph(AT91_PIO_PORTB, 3, 0);
+ if (cs_mask & (1 << 4))
+ at91_set_pio_output(AT91_PIO_PORTA, 14, 0);
+ if (cs_mask & (1 << 5))
+ at91_set_pio_output(AT91_PIO_PORTA, 7, 0);
+ if (cs_mask & (1 << 6))
+ at91_set_pio_output(AT91_PIO_PORTA, 1, 0);
+ if (cs_mask & (1 << 7))
+ at91_set_pio_output(AT91_PIO_PORTB, 3, 0);
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_PMC_BASE;
+
+ at91_set_b_periph(AT91_PIO_PORTA, 21, 0); /* SPI1_MISO */
+ at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* SPI1_MOSI */
+ at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* SPI1_SPCK */
+
+ /* Enable clock */
+ writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
+
+ if (cs_mask & (1 << 0))
+ at91_set_b_periph(AT91_PIO_PORTA, 8, 0);
+ if (cs_mask & (1 << 1))
+ at91_set_b_periph(AT91_PIO_PORTA, 0, 0);
+ if (cs_mask & (1 << 2))
+ at91_set_b_periph(AT91_PIO_PORTA, 31, 0);
+ if (cs_mask & (1 << 3))
+ at91_set_b_periph(AT91_PIO_PORTA, 30, 0);
+ if (cs_mask & (1 << 4))
+ at91_set_pio_output(AT91_PIO_PORTA, 8, 0);
+ if (cs_mask & (1 << 5))
+ at91_set_pio_output(AT91_PIO_PORTA, 0, 0);
+ if (cs_mask & (1 << 6))
+ at91_set_pio_output(AT91_PIO_PORTA, 31, 0);
+ if (cs_mask & (1 << 7))
+ at91_set_pio_output(AT91_PIO_PORTA, 30, 0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+void at91_macb_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ if (has_emac0()) {
+ /* Enable EMAC0 clock */
+ writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
+ /* EMAC0 pins setup */
+ at91_set_a_periph(AT91_PIO_PORTB, 4, 0); /* ETXCK */
+ at91_set_a_periph(AT91_PIO_PORTB, 3, 0); /* ERXDV */
+ at91_set_a_periph(AT91_PIO_PORTB, 0, 0); /* ERX0 */
+ at91_set_a_periph(AT91_PIO_PORTB, 1, 0); /* ERX1 */
+ at91_set_a_periph(AT91_PIO_PORTB, 2, 0); /* ERXER */
+ at91_set_a_periph(AT91_PIO_PORTB, 7, 0); /* ETXEN */
+ at91_set_a_periph(AT91_PIO_PORTB, 9, 0); /* ETX0 */
+ at91_set_a_periph(AT91_PIO_PORTB, 10, 0); /* ETX1 */
+ at91_set_a_periph(AT91_PIO_PORTB, 5, 0); /* EMDIO */
+ at91_set_a_periph(AT91_PIO_PORTB, 6, 0); /* EMDC */
+ }
+
+ if (has_emac1()) {
+ /* Enable EMAC1 clock */
+ writel(1 << ATMEL_ID_EMAC1, &pmc->pcer);
+ /* EMAC1 pins setup */
+ at91_set_b_periph(AT91_PIO_PORTC, 29, 0); /* ETXCK */
+ at91_set_b_periph(AT91_PIO_PORTC, 28, 0); /* ECRSDV */
+ at91_set_b_periph(AT91_PIO_PORTC, 20, 0); /* ERXO */
+ at91_set_b_periph(AT91_PIO_PORTC, 21, 0); /* ERX1 */
+ at91_set_b_periph(AT91_PIO_PORTC, 16, 0); /* ERXER */
+ at91_set_b_periph(AT91_PIO_PORTC, 27, 0); /* ETXEN */
+ at91_set_b_periph(AT91_PIO_PORTC, 18, 0); /* ETX0 */
+ at91_set_b_periph(AT91_PIO_PORTC, 19, 0); /* ETX1 */
+ at91_set_b_periph(AT91_PIO_PORTC, 31, 0); /* EMDIO */
+ at91_set_b_periph(AT91_PIO_PORTC, 30, 0); /* EMDC */
+ }
+
+#ifndef CONFIG_RMII
+ /* Only emac0 support MII */
+ if (has_emac0()) {
+ at91_set_b_periph(AT91_PIO_PORTB, 16, 0); /* ECRS */
+ at91_set_b_periph(AT91_PIO_PORTB, 17, 0); /* ECOL */
+ at91_set_b_periph(AT91_PIO_PORTB, 13, 0); /* ERX2 */
+ at91_set_b_periph(AT91_PIO_PORTB, 14, 0); /* ERX3 */
+ at91_set_b_periph(AT91_PIO_PORTB, 15, 0); /* ERXCK */
+ at91_set_b_periph(AT91_PIO_PORTB, 11, 0); /* ETX2 */
+ at91_set_b_periph(AT91_PIO_PORTB, 12, 0); /* ETX3 */
+ at91_set_b_periph(AT91_PIO_PORTB, 8, 0); /* ETXER */
+ }
+#endif
+}
+#endif
projects / karo-tx-uboot.git / commitdiff