3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
5 * Based on da850evm.c, original Copyrights follow:
7 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
9 * Based on da830evm.c. Original Copyrights follow:
11 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
12 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
14 * SPDX-License-Identifier: GPL-2.0+
21 #include <asm/arch/hardware.h>
22 #include <asm/arch/emif_defs.h>
23 #include <asm/arch/emac_defs.h>
25 #include <asm/arch/davinci_misc.h>
27 #include "../../../drivers/video/da8xx-fb.h"
29 DECLARE_GLOBAL_DATA_PTR;
31 static const struct da8xx_panel lcd_panel = {
32 /* Casio COM57H531x */
33 .name = "Casio_COM57H531x",
46 /* SPI0 pin muxer settings */
47 static const struct pinmux_config spi1_pins[] = {
54 /* I2C pin muxer settings */
55 static const struct pinmux_config i2c_pins[] = {
60 /* UART0 pin muxer settings */
61 static const struct pinmux_config uart_pins[] = {
68 #ifdef CONFIG_DRIVER_TI_EMAC
70 static const struct pinmux_config emac_pins[] = {
83 #ifdef CONFIG_NAND_DAVINCI
84 const struct pinmux_config nand_pins[] = {
85 { pinmux(7), 1, 0}, /* CS2 */
86 { pinmux(7), 0, 1}, /* CS3 in three state*/
87 { pinmux(7), 1, 4 }, /* EMA_WE */
88 { pinmux(7), 1, 5 }, /* EMA_OE */
89 { pinmux(9), 1, 0 }, /* EMA_D[7] */
90 { pinmux(9), 1, 1 }, /* EMA_D[6] */
91 { pinmux(9), 1, 2 }, /* EMA_D[5] */
92 { pinmux(9), 1, 3 }, /* EMA_D[4] */
93 { pinmux(9), 1, 4 }, /* EMA_D[3] */
94 { pinmux(9), 1, 5 }, /* EMA_D[2] */
95 { pinmux(9), 1, 6 }, /* EMA_D[1] */
96 { pinmux(9), 1, 7 }, /* EMA_D[0] */
97 { pinmux(12), 1, 5 }, /* EMA_A[2] */
98 { pinmux(12), 1, 6 }, /* EMA_A[1] */
99 { pinmux(6), 1, 0 } /* EMA_CLK */
103 const struct pinmux_config gpio_pins[] = {
104 { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/
105 { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/
106 { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/
107 { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */
108 { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/
111 const struct pinmux_config lcd_pins[] = {
112 { pinmux(17), 2, 1 }, /* LCD_D_0 */
113 { pinmux(17), 2, 0 }, /* LCD_D_1 */
114 { pinmux(16), 2, 7 }, /* LCD_D_2 */
115 { pinmux(16), 2, 6 }, /* LCD_D_3 */
116 { pinmux(16), 2, 5 }, /* LCD_D_4 */
117 { pinmux(16), 2, 4 }, /* LCD_D_5 */
118 { pinmux(16), 2, 3 }, /* LCD_D_6 */
119 { pinmux(16), 2, 2 }, /* LCD_D_7 */
120 { pinmux(18), 2, 1 }, /* LCD_D_8 */
121 { pinmux(18), 2, 0 }, /* LCD_D_9 */
122 { pinmux(17), 2, 7 }, /* LCD_D_10 */
123 { pinmux(17), 2, 6 }, /* LCD_D_11 */
124 { pinmux(17), 2, 5 }, /* LCD_D_12 */
125 { pinmux(17), 2, 4 }, /* LCD_D_13 */
126 { pinmux(17), 2, 3 }, /* LCD_D_14 */
127 { pinmux(17), 2, 2 }, /* LCD_D_15 */
128 { pinmux(18), 2, 6 }, /* LCD_PCLK */
129 { pinmux(19), 2, 0 }, /* LCD_HSYNC */
130 { pinmux(19), 2, 1 }, /* LCD_VSYNC */
131 { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */
134 const struct pinmux_config halten_pin[] = {
135 { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */
138 static const struct pinmux_resource pinmuxes[] = {
139 #ifdef CONFIG_SPI_FLASH
140 PINMUX_ITEM(spi1_pins),
142 PINMUX_ITEM(uart_pins),
143 PINMUX_ITEM(i2c_pins),
144 #ifdef CONFIG_NAND_DAVINCI
145 PINMUX_ITEM(nand_pins),
148 PINMUX_ITEM(lcd_pins),
152 static const struct lpsc_resource lpsc[] = {
153 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
154 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
155 { DAVINCI_LPSC_EMAC }, /* image download */
156 { DAVINCI_LPSC_UART0 }, /* console */
157 { DAVINCI_LPSC_GPIO },
158 { DAVINCI_LPSC_LCDC }, /* LCD */
161 int board_early_init_f(void)
163 /* PinMux for GPIO */
164 if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0)
167 /* Set DISP_ON high to enable LCD output*/
168 gpio_direction_output(97, 1);
170 /* Set the RESETOUTn low */
171 gpio_direction_output(111, 0);
173 /* Set U0_SW0 low for UART0 as console*/
174 gpio_direction_output(106, 0);
176 /* Set U0_SW1 low for UART0 as console*/
177 gpio_direction_output(108, 0);
179 /* Set LCD_B_PWR low to power down LCD Backlight*/
180 gpio_direction_output(102, 0);
182 #ifndef CONFIG_USE_IRQ
187 * NAND CS setup - cycle counts based on da850evm NAND timings in the
188 * Linux kernel @ 25MHz EMIFA
190 #ifdef CONFIG_NAND_DAVINCI
191 writel((DAVINCI_ABCR_WSETUP(0) |
192 DAVINCI_ABCR_WSTROBE(1) |
193 DAVINCI_ABCR_WHOLD(0) |
194 DAVINCI_ABCR_RSETUP(0) |
195 DAVINCI_ABCR_RSTROBE(1) |
196 DAVINCI_ABCR_RHOLD(0) |
198 DAVINCI_ABCR_ASIZE_8BIT),
199 &davinci_emif_regs->ab1cr); /* CS2 */
203 * Power on required peripherals
204 * ARM does not have access by default to PSC0 and PSC1
205 * assuming here that the DSP bootloader has set the IOPU
206 * such that PSC access is available to ARM
208 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
211 /* setup the SUSPSRC for ARM to control emulation suspend */
212 writel(readl(&davinci_syscfg_regs->suspsrc) &
213 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
214 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
215 DAVINCI_SYSCFG_SUSPSRC_UART0),
216 &davinci_syscfg_regs->suspsrc);
218 /* configure pinmux settings */
219 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
222 #ifdef CONFIG_DRIVER_TI_EMAC
223 if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
226 davinci_emac_mii_mode_sel(HAS_RMII);
227 #endif /* CONFIG_DRIVER_TI_EMAC */
229 /* enable the console UART */
230 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
231 DAVINCI_UART_PWREMU_MGMT_UTRST),
232 &davinci_uart0_ctrl_regs->pwremu_mgmt);
235 * Reconfigure the LCDC priority to the highest to ensure that
236 * the throughput/latency requirements for the LCDC are met.
238 writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff,
239 &davinci_syscfg_regs->mstpri[2]);
246 * Do not overwrite the console
247 * Use always serial for U-Boot console
249 int overwrite_console(void)
256 /* arch number of the board */
257 gd->bd->bi_arch_number = MACH_TYPE_EA20;
259 /* address of boot parameters */
260 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
262 da8xx_video_init(&lcd_panel, 16);
267 #ifdef CONFIG_BOARD_LATE_INIT
269 int board_late_init(void)
271 unsigned char buf[2];
274 /* PinMux for HALTEN */
275 if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0)
278 /* Set HALTEN to high */
279 gpio_direction_output(134, 1);
281 /* Set fixed contrast settings for LCD via I2C potentiometer */
284 ret = i2c_write(0x2e, 6, 1, buf, 2);
286 puts("\nContrast Settings FAILED\n");
288 /* Set LCD_B_PWR high to power up LCD Backlight*/
289 gpio_set_value(102, 1);
292 #endif /* CONFIG_BOARD_LATE_INIT */
294 #ifdef CONFIG_DRIVER_TI_EMAC
297 * Initializes on-board ethernet controllers.
299 int board_eth_init(bd_t *bis)
301 if (!davinci_emac_initialize()) {
302 printf("Error: Ethernet init failed!\n");
307 * This board has a RMII PHY. However, the MDC line on the SOM
308 * must not be disabled (there is no MII PHY on the
309 * baseboard) via the GPIO2[6], because this pin
310 * disables at the same time the SPI flash.
315 #endif /* CONFIG_DRIVER_TI_EMAC */