summaryrefslogtreecommitdiff
path: root/board/atmel/at91sam9260ek/at91sam9260ek.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2008-04-08 00:16:36 +0200
committerWolfgang Denk <wd@denx.de>2008-04-08 00:16:36 +0200
commita1b215e2a2a013327693f2fb990957b746f26cf5 (patch)
treec998a43b8022f623ac86a0de246d05ed36a86e9e /board/atmel/at91sam9260ek/at91sam9260ek.c
parentf9eabcb357ea294e3e01bfe26841bf51d6bd8f05 (diff)
parentb5873f1732b92a25690e1513b90dfb0d644f6697 (diff)
downloadu-boot-imx-a1b215e2a2a013327693f2fb990957b746f26cf5.zip
u-boot-imx-a1b215e2a2a013327693f2fb990957b746f26cf5.tar.gz
u-boot-imx-a1b215e2a2a013327693f2fb990957b746f26cf5.tar.bz2
Merge branch 'master' of git://www.denx.de/git/u-boot-at91
Diffstat (limited to 'board/atmel/at91sam9260ek/at91sam9260ek.c')
-rw-r--r--board/atmel/at91sam9260ek/at91sam9260ek.c236
1 files changed, 236 insertions, 0 deletions
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
new file mode 100644
index 0000000..a55468e
--- /dev/null
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -0,0 +1,236 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop <at> leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * 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/at91sam9260.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+#include <net.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+static void at91sam9260ek_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
+#endif
+
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
+#endif
+
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
+#endif
+
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
+
+#ifdef CONFIG_CMD_NAND
+static void at91sam9260ek_nand_hw_init(void)
+{
+ unsigned long csa;
+
+ /* Enable CS3 */
+ csa = at91_sys_read(AT91_MATRIX_EBICSA);
+ at91_sys_write(AT91_MATRIX_EBICSA,
+ csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
+
+ /* Configure SMC CS3 for NAND/SmartMedia */
+ at91_sys_write(AT91_SMC_SETUP(3),
+ AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
+ AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
+ at91_sys_write(AT91_SMC_PULSE(3),
+ AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
+ AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
+ at91_sys_write(AT91_SMC_CYCLE(3),
+ AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
+ at91_sys_write(AT91_SMC_MODE(3),
+ AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
+ AT91_SMC_EXNWMODE_DISABLE |
+ AT91_SMC_DBW_8 | AT91_SMC_TDF_(2));
+
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
+
+ /* Configure RDY/BSY */
+ at91_set_gpio_input(AT91_PIN_PC13, 1);
+
+ /* Enable NandFlash */
+ at91_set_gpio_output(AT91_PIN_PC14, 1);
+}
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+static void at91sam9260ek_spi_hw_init(void)
+{
+ at91_set_A_periph(AT91_PIN_PA3, 0); /* SPI0_NPCS0 */
+ at91_set_B_periph(AT91_PIN_PC11, 0); /* SPI0_NPCS1 */
+
+ at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
+ at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
+ at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
+
+ /* Enable clock */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void at91sam9260ek_macb_hw_init(void)
+{
+ /* Enable clock */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
+
+ /*
+ * Disable pull-up on:
+ * RXDV (PA17) => PHY normal mode (not Test mode)
+ * ERX0 (PA14) => PHY ADDR0
+ * ERX1 (PA15) => PHY ADDR1
+ * ERX2 (PA25) => PHY ADDR2
+ * ERX3 (PA26) => PHY ADDR3
+ * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
+ *
+ * PHY has internal pull-down
+ */
+ writel(pin_to_mask(AT91_PIN_PA14) |
+ pin_to_mask(AT91_PIN_PA15) |
+ pin_to_mask(AT91_PIN_PA17) |
+ pin_to_mask(AT91_PIN_PA25) |
+ pin_to_mask(AT91_PIN_PA26) |
+ pin_to_mask(AT91_PIN_PA28),
+ pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
+
+ /* Need to reset PHY -> 500ms reset */
+ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+ AT91_RSTC_ERSTL | (0x0D << 8) |
+ AT91_RSTC_URSTEN);
+
+ at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
+
+ /* Wait for end hardware reset */
+ while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
+
+ /* Restore NRST value */
+ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+ AT91_RSTC_ERSTL | (0x0 << 8) |
+ AT91_RSTC_URSTEN);
+
+ /* Re-enable pull-up */
+ writel(pin_to_mask(AT91_PIN_PA14) |
+ pin_to_mask(AT91_PIN_PA15) |
+ pin_to_mask(AT91_PIN_PA17) |
+ pin_to_mask(AT91_PIN_PA25) |
+ pin_to_mask(AT91_PIN_PA26) |
+ pin_to_mask(AT91_PIN_PA28),
+ pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
+
+ at91_set_A_periph(AT91_PIN_PA19, 0); /* ETXCK_EREFCK */
+ at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */
+ at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */
+ at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */
+ at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */
+ at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */
+ at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */
+ at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */
+ at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */
+ at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */
+
+#ifndef CONFIG_RMII
+ at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */
+ at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */
+ at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */
+ at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */
+ at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */
+ at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */
+ at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */
+ at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */
+#endif
+
+}
+#endif
+
+int board_init(void)
+{
+ /* Enable Ctrlc */
+ console_init_f();
+
+ /* arch number of AT91SAM9260EK-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK;
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ at91sam9260ek_serial_hw_init();
+#ifdef CONFIG_CMD_NAND
+ at91sam9260ek_nand_hw_init();
+#endif
+#ifdef CONFIG_HAS_DATAFLASH
+ at91sam9260ek_spi_hw_init();
+#endif
+#ifdef CONFIG_MACB
+ at91sam9260ek_macb_hw_init();
+#endif
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+ return 0;
+}
+
+#ifdef CONFIG_RESET_PHY_R
+void reset_phy(void)
+{
+#ifdef CONFIG_MACB
+ /*
+ * Initialize ethernet HW addr prior to starting Linux,
+ * needed for nfsroot
+ */
+ eth_init(gd->bd);
+#endif
+}
+#endif