| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2007-2008 |
| * Stelian Pop <stelian@popies.net> |
| * Lead Tech Design <www.leadtechdesign.com> |
| * |
| * Achim Ehrlich <aehrlich@taskit.de> |
| * taskit GmbH <www.taskit.de> |
| * |
| * (C) Copyright 2012- |
| * Markus Hubig <mhubig@imko.de> |
| * IMKO GmbH <www.imko.de> |
| * (C) Copyright 2014 |
| * Heiko Schocher <hs@denx.de> |
| * DENX Software Engineering GmbH |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <init.h> |
| #include <net.h> |
| #include <asm/io.h> |
| #include <asm/arch/at91sam9_sdramc.h> |
| #include <asm/arch/at91sam9260_matrix.h> |
| #include <asm/arch/at91sam9_smc.h> |
| #include <asm/arch/at91_common.h> |
| #include <asm/arch/atmel_serial.h> |
| #include <asm/arch/at91_spi.h> |
| #include <spi.h> |
| #include <asm/arch/clk.h> |
| #include <asm/arch/gpio.h> |
| #include <asm/gpio.h> |
| #include <watchdog.h> |
| # include <net.h> |
| #ifndef CONFIG_DM_ETH |
| # include <netdev.h> |
| #endif |
| #include <g_dnl.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static void smartweb_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_PA26, "ena PHY"); |
| } |
| |
| static void smartweb_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(1) | AT91_SMC_SETUP_NCS_WR(0) | |
| AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), |
| &smc->cs[3].setup); |
| writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) | |
| AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3), |
| &smc->cs[3].pulse); |
| writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5), |
| &smc->cs[3].cycle); |
| writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | |
| AT91_SMC_MODE_TDF_CYCLE(2), |
| &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); |
| } |
| |
| static void smartweb_macb_hw_init(void) |
| { |
| struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; |
| |
| /* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */ |
| at91_set_gpio_output(AT91_PIN_PA26, 0); |
| |
| /* |
| * 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_mask(AT91_PIN_PA29), |
| &pioa->pudr); |
| |
| at91_phy_reset(); |
| |
| /* 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_mask(AT91_PIN_PA29), |
| &pioa->puer); |
| |
| /* Initialize EMAC=MACB hardware */ |
| at91_macb_hw_init(); |
| } |
| |
| #ifdef CONFIG_USB_GADGET_AT91 |
| #include <linux/usb/at91_udc.h> |
| |
| void at91_udp_hw_init(void) |
| { |
| /* Enable PLLB */ |
| at91_pllb_clk_enable(get_pllb_init()); |
| |
| /* Enable UDPCK clock, MCK is enabled in at91_clock_init() */ |
| at91_periph_clk_enable(ATMEL_ID_UDP); |
| |
| at91_system_clk_enable(AT91SAM926x_PMC_UDP); |
| } |
| |
| struct at91_udc_data board_udc_data = { |
| .baseaddr = ATMEL_BASE_UDP0, |
| }; |
| #endif |
| |
| int board_early_init_f(void) |
| { |
| /* enable this here, as we have SPL without serial support */ |
| at91_seriald_hw_init(); |
| smartweb_request_gpio(); |
| return 0; |
| } |
| |
| int board_init(void) |
| { |
| smartweb_request_gpio(); |
| /* power LED red */ |
| at91_set_gpio_output(AT91_PIN_PC6, 0); |
| at91_set_gpio_output(AT91_PIN_PC7, 1); |
| /* alarm LED off */ |
| at91_set_gpio_output(AT91_PIN_PC8, 0); |
| at91_set_gpio_output(AT91_PIN_PC9, 0); |
| /* prog LED red */ |
| at91_set_gpio_output(AT91_PIN_PC10, 0); |
| at91_set_gpio_output(AT91_PIN_PC11, 1); |
| |
| #ifdef CONFIG_USB_GADGET_AT91 |
| at91_udp_hw_init(); |
| at91_udc_probe(&board_udc_data); |
| #endif |
| |
| /* Adress of boot parameters */ |
| gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
| |
| smartweb_nand_hw_init(); |
| smartweb_macb_hw_init(); |
| 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 |
| #ifdef CONFIG_MACB |
| int board_eth_init(struct bd_info *bis) |
| { |
| return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00); |
| } |
| #endif /* CONFIG_MACB */ |
| #endif |
| |
| #if defined(CONFIG_SPL_BUILD) |
| #include <spl.h> |
| #include <nand.h> |
| #include <spi_flash.h> |
| |
| void matrix_init(void) |
| { |
| struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX; |
| |
| writel((readl(&mat->scfg[3]) & (~AT91_MATRIX_SLOT_CYCLE)) |
| | AT91_MATRIX_SLOT_CYCLE_(0x40), |
| &mat->scfg[3]); |
| } |
| |
| void at91_spl_board_init(void) |
| { |
| smartweb_request_gpio(); |
| /* power LED orange */ |
| at91_set_gpio_output(AT91_PIN_PC6, 1); |
| at91_set_gpio_output(AT91_PIN_PC7, 1); |
| /* alarm LED orange */ |
| at91_set_gpio_output(AT91_PIN_PC8, 1); |
| at91_set_gpio_output(AT91_PIN_PC9, 1); |
| /* prog LED red */ |
| at91_set_gpio_output(AT91_PIN_PC10, 0); |
| at91_set_gpio_output(AT91_PIN_PC11, 1); |
| |
| smartweb_nand_hw_init(); |
| at91_set_gpio_input(AT91_PIN_PA28, 1); |
| at91_set_gpio_input(AT91_PIN_PA29, 1); |
| |
| /* check if both button are pressed */ |
| if (at91_get_gpio_value(AT91_PIN_PA28) == 0 && |
| at91_get_gpio_value(AT91_PIN_PA29) == 0) { |
| smartweb_nand_hw_init(); |
| nand_init(); |
| spl_nand_erase_one(0, 0); |
| } |
| } |
| |
| #define SDRAM_BASE_CONF (AT91_SDRAMC_NC_9 | AT91_SDRAMC_NR_13 \ |
| | AT91_SDRAMC_CAS_2 \ |
| | AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \ |
| | AT91_SDRAMC_TWR_VAL(2) | AT91_SDRAMC_TRC_VAL(7) \ |
| | AT91_SDRAMC_TRP_VAL(2) | AT91_SDRAMC_TRCD_VAL(2) \ |
| | AT91_SDRAMC_TRAS_VAL(5) | AT91_SDRAMC_TXSR_VAL(8)) |
| |
| void mem_init(void) |
| { |
| struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX; |
| struct at91_port *port = (struct at91_port *)ATMEL_BASE_PIOC; |
| struct sdramc_reg setting; |
| |
| setting.cr = SDRAM_BASE_CONF; |
| setting.mdr = AT91_SDRAMC_MD_SDRAM; |
| setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000; |
| |
| /* |
| * I write here directly in this register, because this |
| * approach is smaller than calling at91_set_a_periph() in a |
| * for loop. This saved me 96 bytes. |
| */ |
| writel(0xffff0000, &port->pdr); |
| |
| writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC, &ma->ebicsa); |
| sdramc_initialize(ATMEL_BASE_CS1, &setting); |
| } |
| #endif |
| |
| int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) |
| { |
| g_dnl_set_serialnumber("1"); |
| return 0; |
| } |