// SPDX-License-Identifier: GPL-2.0+ /* * Board functions for Siemens CORVUS (AT91SAM9G45) based board * (C) Copyright 2013 Siemens AG * * Based on: * U-Boot file: board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c * (C) Copyright 2007-2008 * Stelian Pop * Lead Tech Design */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) #include #endif #ifndef CONFIG_DM_ETH #include #endif #include #ifdef CONFIG_USB_GADGET_ATMEL_USBA #include #endif DECLARE_GLOBAL_DATA_PTR; static void corvus_request_gpio(void) { gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand ena"); gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand rdy"); gpio_request(AT91_PIN_PD7, "d0"); gpio_request(AT91_PIN_PD8, "d1"); gpio_request(AT91_PIN_PA12, "d2"); gpio_request(AT91_PIN_PA13, "d3"); gpio_request(AT91_PIN_PA15, "d4"); gpio_request(AT91_PIN_PB7, "recovery button"); gpio_request(AT91_PIN_PD1, "USB0"); gpio_request(AT91_PIN_PD3, "USB1"); gpio_request(AT91_PIN_PB18, "SPICS1"); gpio_request(AT91_PIN_PB3, "SPICS0"); gpio_request(AT91_PIN_PD31, "red led"); /* this is the user1 led */ gpio_request(AT91_PIN_PD0, "green led"); /* this is the user2 led */ } void red_led_on(void) { gpio_set_value(AT91_PIN_PD31, 1); } void red_led_off(void) { gpio_set_value(AT91_PIN_PD31, 0); } void green_led_on(void) { gpio_set_value(AT91_PIN_PD0, 0); } void green_led_off(void) { gpio_set_value(AT91_PIN_PD0, 1); } static void corvus_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; /* Enable CS3 */ csa = readl(&matrix->ebicsa); csa |= AT91_MATRIX_EBI_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(4) | AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4), &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 | #ifdef CONFIG_SYS_NAND_DBW_16 AT91_SMC_MODE_DBW_16 | #else /* CONFIG_SYS_NAND_DBW_8 */ AT91_SMC_MODE_DBW_8 | #endif AT91_SMC_MODE_TDF_CYCLE(3), &smc->cs[3].mode); at91_periph_clk_enable(ATMEL_ID_PIOC); at91_periph_clk_enable(ATMEL_ID_PIOA); /* Enable NandFlash */ at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); } #if defined(CONFIG_SPL_BUILD) #include #include void spl_board_init(void) { corvus_request_gpio(); /* * For on the sam9m10g45ek board, the chip wm9711 stay in the test * mode, so it need do some action to exit mode. */ at91_set_gpio_output(AT91_PIN_PD7, 0); at91_set_gpio_output(AT91_PIN_PD8, 0); at91_set_pio_pullup(AT91_PIO_PORTD, 7, 1); at91_set_pio_pullup(AT91_PIO_PORTD, 8, 1); at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1); at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1); at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1); corvus_nand_hw_init(); /* Configure recovery button PINs */ at91_set_gpio_input(AT91_PIN_PB7, 1); /* check if button is pressed */ if (at91_get_gpio_value(AT91_PIN_PB7) == 0) { u32 boot_device; debug("Recovery button pressed\n"); boot_device = spl_boot_device(); switch (boot_device) { #ifdef CONFIG_SPL_NAND_SUPPORT case BOOT_DEVICE_NAND: nand_init(); spl_nand_erase_one(0, 0); break; #endif } } } #include static void ddr2_conf(struct atmel_mpddrc_config *ddr2) { ddr2->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM); ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 | ATMEL_MPDDRC_CR_NR_ROW_14 | ATMEL_MPDDRC_CR_DIC_DS | ATMEL_MPDDRC_CR_DQMS_SHARED | ATMEL_MPDDRC_CR_CAS_DDR_CAS3); ddr2->rtr = 0x24b; ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |/* 6*7.5 = 45 ns */ 2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |/* 2*7.5 = 15 ns */ 2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET | /* 2*7.5 = 15 ns */ 8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET | /* 8*7.5 = 75 ns */ 2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET | /* 2*7.5 = 15 ns */ 1 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET | /* 1*7.5= 7.5 ns*/ 1 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET | /* 1 clk cycle */ 2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET); /* 2 clk cycles */ ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET | /* 2*7.5 = 15 ns */ 200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET | 16 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET | 14 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET); ddr2->tpr2 = (1 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET | 0 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET | 7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET | 2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET); } void mem_init(void) { struct atmel_mpddrc_config ddr2; ddr2_conf(&ddr2); at91_system_clk_enable(AT91_PMC_DDR); /* DDRAM2 Controller initialize */ ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2); } #endif #ifdef CONFIG_CMD_USB static void taurus_usb_hw_init(void) { at91_periph_clk_enable(ATMEL_ID_PIODE); at91_set_gpio_output(AT91_PIN_PD1, 0); at91_set_gpio_output(AT91_PIN_PD3, 0); } #endif #ifdef CONFIG_MACB static void corvus_macb_hw_init(void) { /* Enable clock */ at91_periph_clk_enable(ATMEL_ID_EMAC); /* * Disable pull-up on: * RXDV (PA15) => PHY normal mode (not Test mode) * ERX0 (PA12) => PHY ADDR0 * ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0 * * PHY has internal pull-down */ at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0); at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0); at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0); at91_phy_reset(); /* Re-enable pull-up */ at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1); at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1); at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1); /* And the pins. */ at91_macb_hw_init(); } #endif int board_early_init_f(void) { at91_seriald_hw_init(); corvus_request_gpio(); return 0; } #ifdef CONFIG_USB_GADGET_ATMEL_USBA /* from ./arch/arm/mach-at91/armv7/sama5d3_devices.c */ void at91_udp_hw_init(void) { /* Enable UPLL clock */ at91_upll_clk_enable(); /* Enable UDPHS clock */ at91_periph_clk_enable(ATMEL_ID_UDPHS); } #endif int board_init(void) { /* address of boot parameters */ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; /* we have to request the gpios again after relocation */ corvus_request_gpio(); #ifdef CONFIG_CMD_NAND corvus_nand_hw_init(); #endif #ifdef CONFIG_ATMEL_SPI at91_spi0_hw_init(1 << 4); #endif #ifdef CONFIG_MACB corvus_macb_hw_init(); #endif #ifdef CONFIG_CMD_USB taurus_usb_hw_init(); #endif #ifdef CONFIG_USB_GADGET_ATMEL_USBA at91_udp_hw_init(); usba_udc_probe(&pdata); #endif return 0; } int dram_init(void) { gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_SDRAM_SIZE); return 0; } #ifndef CONFIG_DM_ETH int board_eth_init(struct bd_info *bis) { int rc = 0; #ifdef CONFIG_MACB rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00); #endif return rc; } #endif /* SPI chip select control */ int spi_cs_is_valid(unsigned int bus, unsigned int cs) { return bus == 0 && cs < 2; } void spi_cs_activate(struct spi_slave *slave) { switch (slave->cs) { case 1: at91_set_gpio_output(AT91_PIN_PB18, 0); break; case 0: default: at91_set_gpio_output(AT91_PIN_PB3, 0); break; } } void spi_cs_deactivate(struct spi_slave *slave) { switch (slave->cs) { case 1: at91_set_gpio_output(AT91_PIN_PB18, 1); break; case 0: default: at91_set_gpio_output(AT91_PIN_PB3, 1); break; } } static struct atmel_serial_plat at91sam9260_serial_plat = { .base_addr = ATMEL_BASE_DBGU, }; U_BOOT_DRVINFO(at91sam9260_serial) = { .name = "serial_atmel", .plat = &at91sam9260_serial_plat, };