--- /dev/null
+/*
+ * (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 */
Code Review / kvmfornfv.git / blobdiff