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Vasily Khoruzhickf19eb152016-03-20 18:37:00 -07001/*
2 * Copyright (C) 2009
3 * Marek Vasut <marek.vasut@gmail.com>
4 *
5 * Heavily based on pxa255_idp platform
6 *
7 * SPDX-License-Identifier: GPL-2.0+
8 */
9
10#include <common.h>
11#include <command.h>
12#include <serial.h>
13#include <asm/arch/hardware.h>
14#include <asm/arch/pxa.h>
15#include <asm/arch/regs-mmc.h>
16#include <spi.h>
17#include <asm/io.h>
Vasily Khoruzhickafed7eb2016-03-20 18:37:05 -070018#include <usb.h>
Vasily Khoruzhickf19eb152016-03-20 18:37:00 -070019
20DECLARE_GLOBAL_DATA_PTR;
21
22#ifdef CONFIG_CMD_SPI
23void lcd_start(void);
24#else
25inline void lcd_start(void) {};
26#endif
27
28/*
29 * Miscelaneous platform dependent initialisations
30 */
31int board_init(void)
32{
Vasily Khoruzhickf19eb152016-03-20 18:37:00 -070033 /* arch number of Z2 */
34 gd->bd->bi_arch_number = MACH_TYPE_ZIPIT2;
35
36 /* adress of boot parameters */
37 gd->bd->bi_boot_params = 0xa0000100;
38
39 /* Enable LCD */
40 lcd_start();
41
42 return 0;
43}
44
45int dram_init(void)
46{
47 pxa2xx_dram_init();
48 gd->ram_size = PHYS_SDRAM_1_SIZE;
49 return 0;
50}
51
Vasily Khoruzhickafed7eb2016-03-20 18:37:05 -070052#ifdef CONFIG_CMD_USB
53int board_usb_init(int index, enum usb_init_type init)
54{
55 /* enable port 2 */
56 writel(readl(UP2OCR) | UP2OCR_HXOE | UP2OCR_HXS |
57 UP2OCR_DMPDE | UP2OCR_DPPDE, UP2OCR);
58
59 return 0;
60}
61
62int board_usb_cleanup(int index, enum usb_init_type init)
63{
64 return 0;
65}
66
67void usb_board_stop(void)
68{
69}
70#endif
71
Vasily Khoruzhickf19eb152016-03-20 18:37:00 -070072void dram_init_banksize(void)
73{
74 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
75 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
76}
77
78#ifdef CONFIG_CMD_MMC
79int board_mmc_init(bd_t *bis)
80{
81 pxa_mmc_register(0);
82 return 0;
83}
84#endif
85
86#ifdef CONFIG_CMD_SPI
87
88struct {
89 unsigned char reg;
90 unsigned short data;
91 unsigned char mdelay;
92} lcd_data[] = {
93 { 0x07, 0x0000, 0 },
94 { 0x13, 0x0000, 10 },
95 { 0x11, 0x3004, 0 },
96 { 0x14, 0x200F, 0 },
97 { 0x10, 0x1a20, 0 },
98 { 0x13, 0x0040, 50 },
99 { 0x13, 0x0060, 0 },
100 { 0x13, 0x0070, 200 },
101 { 0x01, 0x0127, 0 },
102 { 0x02, 0x0700, 0 },
103 { 0x03, 0x1030, 0 },
104 { 0x08, 0x0208, 0 },
105 { 0x0B, 0x0620, 0 },
106 { 0x0C, 0x0110, 0 },
107 { 0x30, 0x0120, 0 },
108 { 0x31, 0x0127, 0 },
109 { 0x32, 0x0000, 0 },
110 { 0x33, 0x0503, 0 },
111 { 0x34, 0x0727, 0 },
112 { 0x35, 0x0124, 0 },
113 { 0x36, 0x0706, 0 },
114 { 0x37, 0x0701, 0 },
115 { 0x38, 0x0F00, 0 },
116 { 0x39, 0x0F00, 0 },
117 { 0x40, 0x0000, 0 },
118 { 0x41, 0x0000, 0 },
119 { 0x42, 0x013f, 0 },
120 { 0x43, 0x0000, 0 },
121 { 0x44, 0x013f, 0 },
122 { 0x45, 0x0000, 0 },
123 { 0x46, 0xef00, 0 },
124 { 0x47, 0x013f, 0 },
125 { 0x48, 0x0000, 0 },
126 { 0x07, 0x0015, 30 },
127 { 0x07, 0x0017, 0 },
128 { 0x20, 0x0000, 0 },
129 { 0x21, 0x0000, 0 },
130 { 0x22, 0x0000, 0 },
131};
132
133void zipitz2_spi_sda(int set)
134{
135 /* GPIO 13 */
136 if (set)
137 writel((1 << 13), GPSR0);
138 else
139 writel((1 << 13), GPCR0);
140}
141
142void zipitz2_spi_scl(int set)
143{
144 /* GPIO 22 */
145 if (set)
146 writel((1 << 22), GPCR0);
147 else
148 writel((1 << 22), GPSR0);
149}
150
151unsigned char zipitz2_spi_read(void)
152{
153 /* GPIO 40 */
154 return !!(readl(GPLR1) & (1 << 8));
155}
156
157int spi_cs_is_valid(unsigned int bus, unsigned int cs)
158{
159 /* Always valid */
160 return 1;
161}
162
163void spi_cs_activate(struct spi_slave *slave)
164{
165 /* GPIO 88 low */
166 writel((1 << 24), GPCR2);
167}
168
169void spi_cs_deactivate(struct spi_slave *slave)
170{
171 /* GPIO 88 high */
172 writel((1 << 24), GPSR2);
173}
174
175void lcd_start(void)
176{
177 int i;
178 unsigned char reg[3] = { 0x74, 0x00, 0 };
179 unsigned char data[3] = { 0x76, 0, 0 };
180 unsigned char dummy[3] = { 0, 0, 0 };
181
182 /* PWM2 AF */
183 writel(readl(GAFR0_L) | 0x00800000, GAFR0_L);
184 /* Enable clock to all PWM */
185 writel(readl(CKEN) | 0x3, CKEN);
186 /* Configure PWM2 */
187 writel(0x4f, PWM_CTRL2);
188 writel(0x2ff, PWM_PWDUTY2);
189 writel(792, PWM_PERVAL2);
190
191 /* Toggle the reset pin to reset the LCD */
192 writel((1 << 19), GPSR0);
193 udelay(100000);
194 writel((1 << 19), GPCR0);
195 udelay(20000);
196 writel((1 << 19), GPSR0);
197 udelay(20000);
198
199 /* Program the LCD init sequence */
200 for (i = 0; i < sizeof(lcd_data) / sizeof(lcd_data[0]); i++) {
201 reg[0] = 0x74;
202 reg[1] = 0x0;
203 reg[2] = lcd_data[i].reg;
204 spi_xfer(NULL, 24, reg, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
205
206 data[0] = 0x76;
207 data[1] = lcd_data[i].data >> 8;
208 data[2] = lcd_data[i].data & 0xff;
209 spi_xfer(NULL, 24, data, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
210
211 if (lcd_data[i].mdelay)
212 udelay(lcd_data[i].mdelay * 1000);
213 }
214
215 writel((1 << 11), GPSR0);
216}
217#endif