diff options
Diffstat (limited to 'qemu/roms/u-boot/board/davinci/ea20/ea20.c')
| -rw-r--r-- | qemu/roms/u-boot/board/davinci/ea20/ea20.c | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/davinci/ea20/ea20.c b/qemu/roms/u-boot/board/davinci/ea20/ea20.c new file mode 100644 index 000000000..c4444c7c7 --- /dev/null +++ b/qemu/roms/u-boot/board/davinci/ea20/ea20.c @@ -0,0 +1,339 @@ +/* + * (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> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <i2c.h> +#include <net.h> +#include <netdev.h> +#include <asm/arch/hardware.h> +#include <asm/arch/emif_defs.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); + +#ifndef CONFIG_USE_IRQ + irq_init(); +#endif + + /* + * 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 */ |