1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * WORK Microwave work_92105 board support
4  *
5  * (C) Copyright 2014  DENX Software Engineering GmbH
6  * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
7  */
8 
9 #include <common.h>
10 #include <asm/io.h>
11 #include <asm/arch/sys_proto.h>
12 #include <asm/arch/cpu.h>
13 #include <asm/arch/clk.h>
14 #include <asm/arch/emc.h>
15 #include <asm/arch/wdt.h>
16 #include <asm/gpio.h>
17 #include <spl.h>
18 #include "work_92105_display.h"
19 
20 DECLARE_GLOBAL_DATA_PTR;
21 
22 static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
23 static struct wdt_regs  *wdt = (struct wdt_regs *)WDT_BASE;
24 
25 void reset_periph(void)
26 {
27 	setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
28 	writel(WDTIM_MCTRL_RESFRC1, &wdt->mctrl);
29 	udelay(150);
30 	writel(0, &wdt->mctrl);
31 	clrbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
32 }
33 
34 int board_early_init_f(void)
35 {
36 	/* initialize serial port for console */
37 	lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
38 	/* enable I2C, SSP, MAC, NAND */
39 	lpc32xx_i2c_init(1); /* only I2C1 has devices, I2C2 has none */
40 	lpc32xx_ssp_init();
41 	lpc32xx_mac_init();
42 	lpc32xx_mlc_nand_init();
43 	/* Display must wait until after relocation and devices init */
44 	return 0;
45 }
46 
47 #define GPO_19 115
48 
49 int board_early_init_r(void)
50 {
51 	/* Set NAND !WP to 1 through GPO_19 */
52 	gpio_request(GPO_19, "NAND_nWP");
53 	gpio_direction_output(GPO_19, 1);
54 
55 	/* initialize display */
56 	work_92105_display_init();
57 
58 	return 0;
59 }
60 
61 int board_init(void)
62 {
63 	reset_periph();
64 	/* adress of boot parameters */
65 	gd->bd->bi_boot_params  = CONFIG_SYS_SDRAM_BASE + 0x100;
66 
67 	return 0;
68 }
69 
70 int dram_init(void)
71 {
72 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
73 				    CONFIG_SYS_SDRAM_SIZE);
74 
75 	return 0;
76 }
77