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+/*
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+ * (C) Copyright 2007-2008
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+ * Stelian Pop <stelian.pop@leadtechdesign.com>
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+ * Lead Tech Design <www.leadtechdesign.com>
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+ *
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+ * (C) Copyright 2010
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+ * Reinhard Meyer, EMK Elektronik, reinhard.meyer@emk-elektronik.de
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+ *
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+ * See file CREDITS for list of people who contributed to this
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+ * project.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of
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+ * the License, or (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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+ * MA 02111-1307 USA
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+ */
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+
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+#include <common.h>
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+#include <net.h>
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+#include <netdev.h>
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+#include <mmc.h>
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+#include <i2c.h>
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+#include <spi.h>
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+#include <asm/arch/at91sam9260.h>
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+#include <asm/arch/at91sam9260_matrix.h>
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+#include <asm/arch/at91sam9_smc.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_rstc.h>
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+#include <asm/arch/at91_shdwn.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/arch/hardware.h>
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+
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+DECLARE_GLOBAL_DATA_PTR;
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+
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+#ifdef CONFIG_CMD_NAND
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+static void nand_hw_init(void)
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+{
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+ unsigned long csa;
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+
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+ /* Enable CS3 */
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+ csa = at91_sys_read(AT91_MATRIX_EBICSA);
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+ at91_sys_write(AT91_MATRIX_EBICSA,
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+ csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
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+
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+ /* Configure SMC CS3 for NAND/SmartMedia */
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+ at91_sys_write(AT91_SMC_SETUP(3),
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+ AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
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+ AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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+ at91_sys_write(AT91_SMC_PULSE(3),
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+ AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
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+ AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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+ at91_sys_write(AT91_SMC_CYCLE(3),
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+ AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
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+ at91_sys_write(AT91_SMC_MODE(3),
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+ AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
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+ AT91_SMC_EXNWMODE_DISABLE |
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+ AT91_SMC_DBW_8 |
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+ AT91_SMC_TDF_(2));
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+
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+ /* Configure RDY/BSY */
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+ at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
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+
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+ /* Enable NandFlash */
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+ at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
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+}
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+#endif
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+
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+#ifdef CONFIG_MACB
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+static void macb_hw_init(void)
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+{
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+ /* Enable EMAC clock */
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+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
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+
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+ /* Initialize EMAC=MACB hardware */
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+ at91_macb_hw_init();
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+}
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+#endif
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+
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+#ifdef CONFIG_GENERIC_ATMEL_MCI
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+/* this is a weak define that we are overriding */
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+int board_mmc_init(bd_t *bd)
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+{
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+ /* Enable MCI clock */
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+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_MCI);
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+
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+ /* Initialize MCI hardware */
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+ at91_mci_hw_init();
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+
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+ /* This calls the atmel_mmc_init in gen_atmel_mci.c */
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+ return atmel_mci_init((void *)AT91_BASE_MCI);
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+}
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+
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+/* this is a weak define that we are overriding */
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+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
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+{
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+ /*
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+ * the only currently existing use of this function
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+ * (fsl_esdhc.c) suggests this function must return
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+ * *cs = TRUE if a card is NOT detected -> in most
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+ * cases the value of the pin when the detect switch
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+ * closes to GND
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+ */
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+ *cd = at91_get_gpio_value(CONFIG_SYS_MMC_CD_PIN) ? 1 : 0;
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+ return 0;
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+}
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+
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+#endif
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+
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+int board_early_init_f(void)
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+{
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+ at91_shdwn_t *shdwn = (at91_shdwn_t *)AT91_SHDWN_BASE;
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+
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+ /*
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+ * make sure the board can be powered on by
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+ * any transition on WKUP
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+ */
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+ writel(AT91_SHDW_MR_WKMODE0H2L | AT91_SHDW_MR_WKMODE0L2H,
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+ &shdwn->mr);
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+
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+ /* Enable clocks for all PIOs */
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+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOA);
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+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOB);
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+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
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+
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+ /* set SCL0 and SDA0 to open drain */
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+ at91_set_pio_output(I2C0_PORT, SCL0_PIN, 1);
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+ at91_set_pio_multi_drive(I2C0_PORT, SCL0_PIN, 1);
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+ at91_set_pio_pullup(I2C0_PORT, SCL0_PIN, 1);
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+ at91_set_pio_output(I2C0_PORT, SDA0_PIN, 1);
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+ at91_set_pio_multi_drive(I2C0_PORT, SDA0_PIN, 1);
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+ at91_set_pio_pullup(I2C0_PORT, SDA0_PIN, 1);
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+
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+ /* set SCL1 and SDA1 to open drain */
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+ at91_set_pio_output(I2C1_PORT, SCL1_PIN, 1);
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+ at91_set_pio_multi_drive(I2C1_PORT, SCL1_PIN, 1);
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+ at91_set_pio_pullup(I2C1_PORT, SCL1_PIN, 1);
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+ at91_set_pio_output(I2C1_PORT, SDA1_PIN, 1);
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+ at91_set_pio_multi_drive(I2C1_PORT, SDA1_PIN, 1);
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+ at91_set_pio_pullup(I2C1_PORT, SDA1_PIN, 1);
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+ return 0;
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+}
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+
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+int board_init(void)
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+{
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+ /* arch number of TOP9000 Board */
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+ gd->bd->bi_arch_number = MACH_TYPE_TOP9000;
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+ /* adress of boot parameters */
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+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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+
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+ at91_serial_hw_init();
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+#ifdef CONFIG_CMD_NAND
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+ nand_hw_init();
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+#endif
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+#ifdef CONFIG_MACB
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+ macb_hw_init();
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+#endif
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+#ifdef CONFIG_ATMEL_SPI0
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+ /* (n+4) denotes to use nSPISEL(0) in GPIO mode! */
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+ at91_spi0_hw_init(1 << (FRAM_CS_NUM + 4));
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+#endif
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+#ifdef CONFIG_ATMEL_SPI1
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+ at91_spi1_hw_init(1 << (ENC_CS_NUM + 4));
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+#endif
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+ return 0;
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+}
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+
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+#ifdef CONFIG_MISC_INIT_R
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+int misc_init_r(void)
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+{
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+ /* read 'factory' part of EEPROM */
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+ read_factory_r();
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+ return 0;
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+}
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+#endif
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+
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+int dram_init(void)
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+{
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+ gd->ram_size = get_ram_size(
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+ (void *)CONFIG_SYS_SDRAM_BASE,
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+ CONFIG_SYS_SDRAM_SIZE);
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+ return 0;
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+}
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+
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+#ifdef CONFIG_RESET_PHY_R
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+void reset_phy(void)
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+{
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+ /*
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+ * Initialize ethernet HW addresses prior to starting Linux,
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+ * needed for nfsroot.
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+ * TODO: We need to investigate if that is really necessary.
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+ */
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+ eth_init(gd->bd);
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+}
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+#endif
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+
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+int board_eth_init(bd_t *bis)
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+{
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+ int rc = 0;
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+ int num = 0;
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+#ifdef CONFIG_MACB
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+ rc = macb_eth_initialize(0,
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+ (void *)AT91_EMAC_BASE,
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+ CONFIG_SYS_PHY_ID);
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+ if (!rc)
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+ num++;
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+#endif
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+#ifdef CONFIG_ENC28J60
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+ rc = enc28j60_initialize(ENC_SPI_BUS, ENC_CS_NUM,
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+ ENC_SPI_CLOCK, SPI_MODE_0);
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+ if (!rc)
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+ num++;
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+# ifdef CONFIG_ENC28J60_2
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+ rc = enc28j60_initialize(ENC_SPI_BUS, ENC_CS_NUM+1,
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+ ENC_SPI_CLOCK, SPI_MODE_0);
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+ if (!rc)
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+ num++;
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+# ifdef CONFIG_ENC28J60_3
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+ rc = enc28j60_initialize(ENC_SPI_BUS, ENC_CS_NUM+2,
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+ ENC_SPI_CLOCK, SPI_MODE_0);
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+ if (!rc)
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+ num++;
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+# endif
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+# endif
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+#endif
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+ return num;
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+}
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+
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+/*
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+ * I2C access functions
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+ *
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+ * Note:
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+ * We need to access Bus 0 before relocation to access the
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+ * environment settings.
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+ * However i2c_get_bus_num() cannot be called before
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+ * relocation.
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+ */
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+#ifdef CONFIG_SOFT_I2C
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+void iic_init(void)
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+{
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+ /* ports are now initialized in board_early_init_f() */
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+}
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+
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+int iic_read(void)
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+{
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+ switch ((gd->flags & GD_FLG_RELOC) ? i2c_get_bus_num() : 0) {
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+ case 0:
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+ return at91_get_pio_value(I2C0_PORT, SDA0_PIN);
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+ case 1:
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+ return at91_get_pio_value(I2C1_PORT, SDA1_PIN);
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+ }
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+ return 1;
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+}
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+
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+void iic_sda(int bit)
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+{
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+ switch ((gd->flags & GD_FLG_RELOC) ? i2c_get_bus_num() : 0) {
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+ case 0:
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+ at91_set_pio_value(I2C0_PORT, SDA0_PIN, bit);
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+ break;
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+ case 1:
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+ at91_set_pio_value(I2C1_PORT, SDA1_PIN, bit);
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+ break;
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+ }
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+}
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+
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+void iic_scl(int bit)
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+{
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+ switch ((gd->flags & GD_FLG_RELOC) ? i2c_get_bus_num() : 0) {
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+ case 0:
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+ at91_set_pio_value(I2C0_PORT, SCL0_PIN, bit);
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+ break;
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+ case 1:
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+ at91_set_pio_value(I2C1_PORT, SCL1_PIN, bit);
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+ break;
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+ }
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+}
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+
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+#endif
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