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 static const struct display_panel disp_panel = {
53 static const struct lcd_ctrl_config lcd_cfg = {
63 .invert_line_clock = 1,
64 .invert_frm_clock = 1,
70 /* SPI0 pin muxer settings */
71 static const struct pinmux_config spi1_pins[] = {
78 /* I2C pin muxer settings */
79 static const struct pinmux_config i2c_pins[] = {
84 /* UART0 pin muxer settings */
85 static const struct pinmux_config uart_pins[] = {
92 #ifdef CONFIG_DRIVER_TI_EMAC
94 static const struct pinmux_config emac_pins[] = {
100 { pinmux(14), 8, 7 },
101 { pinmux(15), 8, 1 },
107 #ifdef CONFIG_NAND_DAVINCI
108 const struct pinmux_config nand_pins[] = {
109 { pinmux(7), 1, 0}, /* CS2 */
110 { pinmux(7), 0, 1}, /* CS3 in three state*/
111 { pinmux(7), 1, 4 }, /* EMA_WE */
112 { pinmux(7), 1, 5 }, /* EMA_OE */
113 { pinmux(9), 1, 0 }, /* EMA_D[7] */
114 { pinmux(9), 1, 1 }, /* EMA_D[6] */
115 { pinmux(9), 1, 2 }, /* EMA_D[5] */
116 { pinmux(9), 1, 3 }, /* EMA_D[4] */
117 { pinmux(9), 1, 4 }, /* EMA_D[3] */
118 { pinmux(9), 1, 5 }, /* EMA_D[2] */
119 { pinmux(9), 1, 6 }, /* EMA_D[1] */
120 { pinmux(9), 1, 7 }, /* EMA_D[0] */
121 { pinmux(12), 1, 5 }, /* EMA_A[2] */
122 { pinmux(12), 1, 6 }, /* EMA_A[1] */
123 { pinmux(6), 1, 0 } /* EMA_CLK */
127 const struct pinmux_config gpio_pins[] = {
128 { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/
129 { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/
130 { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/
131 { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */
132 { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/
135 const struct pinmux_config lcd_pins[] = {
136 { pinmux(17), 2, 1 }, /* LCD_D_0 */
137 { pinmux(17), 2, 0 }, /* LCD_D_1 */
138 { pinmux(16), 2, 7 }, /* LCD_D_2 */
139 { pinmux(16), 2, 6 }, /* LCD_D_3 */
140 { pinmux(16), 2, 5 }, /* LCD_D_4 */
141 { pinmux(16), 2, 4 }, /* LCD_D_5 */
142 { pinmux(16), 2, 3 }, /* LCD_D_6 */
143 { pinmux(16), 2, 2 }, /* LCD_D_7 */
144 { pinmux(18), 2, 1 }, /* LCD_D_8 */
145 { pinmux(18), 2, 0 }, /* LCD_D_9 */
146 { pinmux(17), 2, 7 }, /* LCD_D_10 */
147 { pinmux(17), 2, 6 }, /* LCD_D_11 */
148 { pinmux(17), 2, 5 }, /* LCD_D_12 */
149 { pinmux(17), 2, 4 }, /* LCD_D_13 */
150 { pinmux(17), 2, 3 }, /* LCD_D_14 */
151 { pinmux(17), 2, 2 }, /* LCD_D_15 */
152 { pinmux(18), 2, 6 }, /* LCD_PCLK */
153 { pinmux(19), 2, 0 }, /* LCD_HSYNC */
154 { pinmux(19), 2, 1 }, /* LCD_VSYNC */
155 { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */
158 const struct pinmux_config halten_pin[] = {
159 { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */
162 static const struct pinmux_resource pinmuxes[] = {
163 #ifdef CONFIG_SPI_FLASH
164 PINMUX_ITEM(spi1_pins),
166 PINMUX_ITEM(uart_pins),
167 PINMUX_ITEM(i2c_pins),
168 #ifdef CONFIG_NAND_DAVINCI
169 PINMUX_ITEM(nand_pins),
172 PINMUX_ITEM(lcd_pins),
176 static const struct lpsc_resource lpsc[] = {
177 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
178 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
179 { DAVINCI_LPSC_EMAC }, /* image download */
180 { DAVINCI_LPSC_UART0 }, /* console */
181 { DAVINCI_LPSC_GPIO },
182 { DAVINCI_LPSC_LCDC }, /* LCD */
185 int board_early_init_f(void)
187 /* PinMux for GPIO */
188 if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0)
191 /* Set DISP_ON high to enable LCD output*/
192 gpio_direction_output(97, 1);
194 /* Set the RESETOUTn low */
195 gpio_direction_output(111, 0);
197 /* Set U0_SW0 low for UART0 as console*/
198 gpio_direction_output(106, 0);
200 /* Set U0_SW1 low for UART0 as console*/
201 gpio_direction_output(108, 0);
203 /* Set LCD_B_PWR low to power down LCD Backlight*/
204 gpio_direction_output(102, 0);
206 #ifndef CONFIG_USE_IRQ
211 * NAND CS setup - cycle counts based on da850evm NAND timings in the
212 * Linux kernel @ 25MHz EMIFA
214 #ifdef CONFIG_NAND_DAVINCI
215 writel((DAVINCI_ABCR_WSETUP(0) |
216 DAVINCI_ABCR_WSTROBE(1) |
217 DAVINCI_ABCR_WHOLD(0) |
218 DAVINCI_ABCR_RSETUP(0) |
219 DAVINCI_ABCR_RSTROBE(1) |
220 DAVINCI_ABCR_RHOLD(0) |
222 DAVINCI_ABCR_ASIZE_8BIT),
223 &davinci_emif_regs->ab1cr); /* CS2 */
227 * Power on required peripherals
228 * ARM does not have access by default to PSC0 and PSC1
229 * assuming here that the DSP bootloader has set the IOPU
230 * such that PSC access is available to ARM
232 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
235 /* setup the SUSPSRC for ARM to control emulation suspend */
236 writel(readl(&davinci_syscfg_regs->suspsrc) &
237 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
238 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
239 DAVINCI_SYSCFG_SUSPSRC_UART0),
240 &davinci_syscfg_regs->suspsrc);
242 /* configure pinmux settings */
243 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
246 #ifdef CONFIG_DRIVER_TI_EMAC
247 if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
250 davinci_emac_mii_mode_sel(HAS_RMII);
251 #endif /* CONFIG_DRIVER_TI_EMAC */
253 /* enable the console UART */
254 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
255 DAVINCI_UART_PWREMU_MGMT_UTRST),
256 &davinci_uart0_ctrl_regs->pwremu_mgmt);
259 * Reconfigure the LCDC priority to the highest to ensure that
260 * the throughput/latency requirements for the LCDC are met.
262 writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff,
263 &davinci_syscfg_regs->mstpri[2]);
270 * Do not overwrite the console
271 * Use always serial for U-Boot console
273 int overwrite_console(void)
280 /* arch number of the board */
281 gd->bd->bi_arch_number = MACH_TYPE_EA20;
283 /* address of boot parameters */
284 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
286 da8xx_video_init(&lcd_panel, &lcd_cfg, 16);
291 #ifdef CONFIG_BOARD_LATE_INIT
293 int board_late_init(void)
295 unsigned char buf[2];
298 /* PinMux for HALTEN */
299 if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0)
302 /* Set HALTEN to high */
303 gpio_direction_output(134, 1);
305 /* Set fixed contrast settings for LCD via I2C potentiometer */
308 ret = i2c_write(0x2e, 6, 1, buf, 2);
310 puts("\nContrast Settings FAILED\n");
312 /* Set LCD_B_PWR high to power up LCD Backlight*/
313 gpio_set_value(102, 1);
316 #endif /* CONFIG_BOARD_LATE_INIT */
318 #ifdef CONFIG_DRIVER_TI_EMAC
321 * Initializes on-board ethernet controllers.
323 int board_eth_init(bd_t *bis)
325 if (!davinci_emac_initialize()) {
326 printf("Error: Ethernet init failed!\n");
331 * This board has a RMII PHY. However, the MDC line on the SOM
332 * must not be disabled (there is no MII PHY on the
333 * baseboard) via the GPIO2[6], because this pin
334 * disables at the same time the SPI flash.
339 #endif /* CONFIG_DRIVER_TI_EMAC */