| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2010 |
| * Stefano Babic, DENX Software Engineering, sbabic@denx.de |
| * |
| * Based on da850evm.c, original Copyrights follow: |
| * |
| * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ |
| * |
| * Based on da830evm.c. Original Copyrights follow: |
| * |
| * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com> |
| * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> |
| */ |
| |
| #include <common.h> |
| #include <i2c.h> |
| #include <net.h> |
| #include <netdev.h> |
| #include <asm/mach-types.h> |
| #include <asm/arch/hardware.h> |
| #include <asm/ti-common/davinci_nand.h> |
| #include <asm/arch/emac_defs.h> |
| #include <asm/io.h> |
| #include <asm/arch/davinci_misc.h> |
| #include <asm/gpio.h> |
| #include "../../../drivers/video/da8xx-fb.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static const struct da8xx_panel lcd_panel = { |
| /* Casio COM57H531x */ |
| .name = "Casio_COM57H531x", |
| .width = 640, |
| .height = 480, |
| .hfp = 12, |
| .hbp = 144, |
| .hsw = 30, |
| .vfp = 10, |
| .vbp = 35, |
| .vsw = 3, |
| .pxl_clk = 25000000, |
| .invert_pxl_clk = 0, |
| }; |
| |
| static const struct display_panel disp_panel = { |
| QVGA, |
| 16, |
| 16, |
| COLOR_ACTIVE, |
| }; |
| |
| static const struct lcd_ctrl_config lcd_cfg = { |
| &disp_panel, |
| .ac_bias = 255, |
| .ac_bias_intrpt = 0, |
| .dma_burst_sz = 16, |
| .bpp = 16, |
| .fdd = 255, |
| .tft_alt_mode = 0, |
| .stn_565_mode = 0, |
| .mono_8bit_mode = 0, |
| .invert_line_clock = 1, |
| .invert_frm_clock = 1, |
| .sync_edge = 0, |
| .sync_ctrl = 1, |
| .raster_order = 0, |
| }; |
| |
| /* SPI0 pin muxer settings */ |
| static const struct pinmux_config spi1_pins[] = { |
| { pinmux(5), 1, 1 }, |
| { pinmux(5), 1, 2 }, |
| { pinmux(5), 1, 4 }, |
| { pinmux(5), 1, 5 } |
| }; |
| |
| /* I2C pin muxer settings */ |
| static const struct pinmux_config i2c_pins[] = { |
| { pinmux(4), 2, 2 }, |
| { pinmux(4), 2, 3 } |
| }; |
| |
| /* UART0 pin muxer settings */ |
| static const struct pinmux_config uart_pins[] = { |
| { pinmux(3), 2, 7 }, |
| { pinmux(3), 2, 6 }, |
| { pinmux(3), 2, 4 }, |
| { pinmux(3), 2, 5 } |
| }; |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC |
| #define HAS_RMII 1 |
| static const struct pinmux_config emac_pins[] = { |
| { pinmux(14), 8, 2 }, |
| { pinmux(14), 8, 3 }, |
| { pinmux(14), 8, 4 }, |
| { pinmux(14), 8, 5 }, |
| { pinmux(14), 8, 6 }, |
| { pinmux(14), 8, 7 }, |
| { pinmux(15), 8, 1 }, |
| { pinmux(4), 8, 0 }, |
| { pinmux(4), 8, 1 } |
| }; |
| #endif |
| |
| #ifdef CONFIG_NAND_DAVINCI |
| const struct pinmux_config nand_pins[] = { |
| { pinmux(7), 1, 0}, /* CS2 */ |
| { pinmux(7), 0, 1}, /* CS3 in three state*/ |
| { pinmux(7), 1, 4 }, /* EMA_WE */ |
| { pinmux(7), 1, 5 }, /* EMA_OE */ |
| { pinmux(9), 1, 0 }, /* EMA_D[7] */ |
| { pinmux(9), 1, 1 }, /* EMA_D[6] */ |
| { pinmux(9), 1, 2 }, /* EMA_D[5] */ |
| { pinmux(9), 1, 3 }, /* EMA_D[4] */ |
| { pinmux(9), 1, 4 }, /* EMA_D[3] */ |
| { pinmux(9), 1, 5 }, /* EMA_D[2] */ |
| { pinmux(9), 1, 6 }, /* EMA_D[1] */ |
| { pinmux(9), 1, 7 }, /* EMA_D[0] */ |
| { pinmux(12), 1, 5 }, /* EMA_A[2] */ |
| { pinmux(12), 1, 6 }, /* EMA_A[1] */ |
| { pinmux(6), 1, 0 } /* EMA_CLK */ |
| }; |
| #endif |
| |
| const struct pinmux_config gpio_pins[] = { |
| { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/ |
| { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/ |
| { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/ |
| { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */ |
| { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/ |
| }; |
| |
| const struct pinmux_config lcd_pins[] = { |
| { pinmux(17), 2, 1 }, /* LCD_D_0 */ |
| { pinmux(17), 2, 0 }, /* LCD_D_1 */ |
| { pinmux(16), 2, 7 }, /* LCD_D_2 */ |
| { pinmux(16), 2, 6 }, /* LCD_D_3 */ |
| { pinmux(16), 2, 5 }, /* LCD_D_4 */ |
| { pinmux(16), 2, 4 }, /* LCD_D_5 */ |
| { pinmux(16), 2, 3 }, /* LCD_D_6 */ |
| { pinmux(16), 2, 2 }, /* LCD_D_7 */ |
| { pinmux(18), 2, 1 }, /* LCD_D_8 */ |
| { pinmux(18), 2, 0 }, /* LCD_D_9 */ |
| { pinmux(17), 2, 7 }, /* LCD_D_10 */ |
| { pinmux(17), 2, 6 }, /* LCD_D_11 */ |
| { pinmux(17), 2, 5 }, /* LCD_D_12 */ |
| { pinmux(17), 2, 4 }, /* LCD_D_13 */ |
| { pinmux(17), 2, 3 }, /* LCD_D_14 */ |
| { pinmux(17), 2, 2 }, /* LCD_D_15 */ |
| { pinmux(18), 2, 6 }, /* LCD_PCLK */ |
| { pinmux(19), 2, 0 }, /* LCD_HSYNC */ |
| { pinmux(19), 2, 1 }, /* LCD_VSYNC */ |
| { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */ |
| }; |
| |
| const struct pinmux_config halten_pin[] = { |
| { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */ |
| }; |
| |
| static const struct pinmux_resource pinmuxes[] = { |
| #ifdef CONFIG_SPI_FLASH |
| PINMUX_ITEM(spi1_pins), |
| #endif |
| PINMUX_ITEM(uart_pins), |
| PINMUX_ITEM(i2c_pins), |
| #ifdef CONFIG_NAND_DAVINCI |
| PINMUX_ITEM(nand_pins), |
| #endif |
| #ifdef CONFIG_VIDEO |
| PINMUX_ITEM(lcd_pins), |
| #endif |
| }; |
| |
| static const struct lpsc_resource lpsc[] = { |
| { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ |
| { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ |
| { DAVINCI_LPSC_EMAC }, /* image download */ |
| { DAVINCI_LPSC_UART0 }, /* console */ |
| { DAVINCI_LPSC_GPIO }, |
| { DAVINCI_LPSC_LCDC }, /* LCD */ |
| }; |
| |
| int board_early_init_f(void) |
| { |
| /* PinMux for GPIO */ |
| if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0) |
| return 1; |
| |
| /* Set DISP_ON high to enable LCD output*/ |
| gpio_direction_output(97, 1); |
| |
| /* Set the RESETOUTn low */ |
| gpio_direction_output(111, 0); |
| |
| /* Set U0_SW0 low for UART0 as console*/ |
| gpio_direction_output(106, 0); |
| |
| /* Set U0_SW1 low for UART0 as console*/ |
| gpio_direction_output(108, 0); |
| |
| /* Set LCD_B_PWR low to power down LCD Backlight*/ |
| gpio_direction_output(102, 0); |
| |
| irq_init(); |
| |
| /* |
| * NAND CS setup - cycle counts based on da850evm NAND timings in the |
| * Linux kernel @ 25MHz EMIFA |
| */ |
| #ifdef CONFIG_NAND_DAVINCI |
| writel((DAVINCI_ABCR_WSETUP(0) | |
| DAVINCI_ABCR_WSTROBE(1) | |
| DAVINCI_ABCR_WHOLD(0) | |
| DAVINCI_ABCR_RSETUP(0) | |
| DAVINCI_ABCR_RSTROBE(1) | |
| DAVINCI_ABCR_RHOLD(0) | |
| DAVINCI_ABCR_TA(0) | |
| DAVINCI_ABCR_ASIZE_8BIT), |
| &davinci_emif_regs->ab1cr); /* CS2 */ |
| #endif |
| |
| /* |
| * Power on required peripherals |
| * ARM does not have access by default to PSC0 and PSC1 |
| * assuming here that the DSP bootloader has set the IOPU |
| * such that PSC access is available to ARM |
| */ |
| if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc))) |
| return 1; |
| |
| /* setup the SUSPSRC for ARM to control emulation suspend */ |
| writel(readl(&davinci_syscfg_regs->suspsrc) & |
| ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | |
| DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | |
| DAVINCI_SYSCFG_SUSPSRC_UART0), |
| &davinci_syscfg_regs->suspsrc); |
| |
| /* configure pinmux settings */ |
| if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) |
| return 1; |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC |
| if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) |
| return 1; |
| |
| davinci_emac_mii_mode_sel(HAS_RMII); |
| #endif /* CONFIG_DRIVER_TI_EMAC */ |
| |
| /* enable the console UART */ |
| writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | |
| DAVINCI_UART_PWREMU_MGMT_UTRST), |
| &davinci_uart0_ctrl_regs->pwremu_mgmt); |
| |
| /* |
| * Reconfigure the LCDC priority to the highest to ensure that |
| * the throughput/latency requirements for the LCDC are met. |
| */ |
| writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff, |
| &davinci_syscfg_regs->mstpri[2]); |
| |
| |
| return 0; |
| } |
| |
| /* |
| * Do not overwrite the console |
| * Use always serial for U-Boot console |
| */ |
| int overwrite_console(void) |
| { |
| return 1; |
| } |
| |
| int board_init(void) |
| { |
| /* arch number of the board */ |
| gd->bd->bi_arch_number = MACH_TYPE_EA20; |
| |
| /* address of boot parameters */ |
| gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; |
| |
| da8xx_video_init(&lcd_panel, &lcd_cfg, 16); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_BOARD_LATE_INIT |
| |
| int board_late_init(void) |
| { |
| unsigned char buf[2]; |
| int ret; |
| |
| /* PinMux for HALTEN */ |
| if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0) |
| return 1; |
| |
| /* Set HALTEN to high */ |
| gpio_direction_output(134, 1); |
| |
| /* Set fixed contrast settings for LCD via I2C potentiometer */ |
| buf[0] = 0x00; |
| buf[1] = 0xd7; |
| ret = i2c_write(0x2e, 6, 1, buf, 2); |
| if (ret) |
| puts("\nContrast Settings FAILED\n"); |
| |
| /* Set LCD_B_PWR high to power up LCD Backlight*/ |
| gpio_set_value(102, 1); |
| return 0; |
| } |
| #endif /* CONFIG_BOARD_LATE_INIT */ |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC |
| |
| /* |
| * Initializes on-board ethernet controllers. |
| */ |
| int board_eth_init(bd_t *bis) |
| { |
| if (!davinci_emac_initialize()) { |
| printf("Error: Ethernet init failed!\n"); |
| return -1; |
| } |
| |
| /* |
| * This board has a RMII PHY. However, the MDC line on the SOM |
| * must not be disabled (there is no MII PHY on the |
| * baseboard) via the GPIO2[6], because this pin |
| * disables at the same time the SPI flash. |
| */ |
| |
| return 0; |
| } |
| #endif /* CONFIG_DRIVER_TI_EMAC */ |
