diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/siemens/taurus/Makefile | 18 | ||||
| -rw-r--r-- | board/siemens/taurus/taurus.c | 160 |
2 files changed, 178 insertions, 0 deletions
diff --git a/board/siemens/taurus/Makefile b/board/siemens/taurus/Makefile new file mode 100644 index 0000000..a26fb92 --- /dev/null +++ b/board/siemens/taurus/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for Siemens TAURUS (AT91SAM9G20) based board +# (C) Copyright 2013 Siemens AG +# +# Based on: +# U-Boot file: board/atmel/at91sam9260ek/Makefile +# +# (C) Copyright 2003-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2008 +# Stelian Pop <stelian@popies.net> +# Lead Tech Design <www.leadtechdesign.com> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += taurus.o diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c new file mode 100644 index 0000000..673b302 --- /dev/null +++ b/board/siemens/taurus/taurus.c @@ -0,0 +1,160 @@ +/* + * Board functions for Siemens TAURUS (AT91SAM9G20) based boards + * (C) Copyright Siemens AG + * + * Based on: + * U-Boot file: board/atmel/at91sam9260ek/at91sam9260ek.c + * + * (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/io.h> +#include <asm/arch/at91sam9260_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91sam9_sdramc.h> +#include <atmel_mci.h> + +#include <net.h> +#include <netdev.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_CMD_NAND +static void taurus_nand_hw_init(void) +{ + struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; + struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; + unsigned long csa; + + /* Assign CS3 to NAND/SmartMedia Interface */ + csa = readl(&matrix->ebicsa); + csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; + writel(csa, &matrix->ebicsa); + + /* Configure SMC CS3 for NAND/SmartMedia */ + writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0), + &smc->cs[3].setup); + writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) | + AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(3), + &smc->cs[3].pulse); + writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7), + &smc->cs[3].cycle); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | + AT91_SMC_MODE_EXNW_DISABLE | + AT91_SMC_MODE_DBW_8 | + AT91_SMC_MODE_TDF_CYCLE(3), + &smc->cs[3].mode); + + /* Configure RDY/BSY */ + at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + + /* Enable NandFlash */ + at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); +} +#endif + +#ifdef CONFIG_MACB +static void taurus_macb_hw_init(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + + /* Enable EMAC clock */ + writel(1 << ATMEL_ID_EMAC0, &pmc->pcer); + + /* + * 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 + */ + at91_set_pio_pullup(AT91_PIO_PORTA, 14, 0); + at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0); + at91_set_pio_pullup(AT91_PIO_PORTA, 17, 0); + at91_set_pio_pullup(AT91_PIO_PORTA, 25, 0); + at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0); + at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0); + + at91_phy_reset(); + + at91_set_gpio_input(AT91_PIN_PA25, 1); /* ERST tri-state */ + + /* Re-enable pull-up */ + at91_set_pio_pullup(AT91_PIO_PORTA, 14, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 25, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 26, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 28, 1); + + /* Initialize EMAC=MACB hardware */ + at91_macb_hw_init(); +} +#endif + +#ifdef CONFIG_GENERIC_ATMEL_MCI +int board_mmc_init(bd_t *bd) +{ + at91_mci_hw_init(); + + return atmel_mci_init((void *)ATMEL_BASE_MCI); +} +#endif + +int board_early_init_f(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + + /* Enable clocks for all PIOs */ + writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) | + (1 << ATMEL_ID_PIOC), + &pmc->pcer); + + return 0; +} + +int board_init(void) +{ + /* adress of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + at91_seriald_hw_init(); +#ifdef CONFIG_CMD_NAND + taurus_nand_hw_init(); +#endif +#ifdef CONFIG_MACB + taurus_macb_hw_init(); +#endif + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +int board_eth_init(bd_t *bis) +{ + int rc = 0; +#ifdef CONFIG_MACB + rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00); +#endif + return rc; +} |