]>
git.ipfire.org Git - people/ms/u-boot.git/blob - board/zipitz2/zipitz2.c
3 * Marek Vasut <marek.vasut@gmail.com>
5 * Heavily based on pxa255_idp platform
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/arch/hardware.h>
30 #include <asm/arch/pxa.h>
31 #include <asm/arch/regs-mmc.h>
35 DECLARE_GLOBAL_DATA_PTR
;
40 inline void lcd_start(void) {};
44 * Miscelaneous platform dependent initialisations
49 /* We have RAM, disable cache */
53 /* arch number of Z2 */
54 gd
->bd
->bi_arch_number
= MACH_TYPE_ZIPIT2
;
56 /* adress of boot parameters */
57 gd
->bd
->bi_boot_params
= 0xa0000100;
65 struct serial_device
*default_serial_console (void)
67 return &serial_stuart_device
;
73 gd
->ram_size
= PHYS_SDRAM_1_SIZE
;
77 void dram_init_banksize(void)
79 gd
->bd
->bi_dram
[0].start
= PHYS_SDRAM_1
;
80 gd
->bd
->bi_dram
[0].size
= PHYS_SDRAM_1_SIZE
;
84 int board_mmc_init(bd_t
*bis
)
103 { 0x13, 0x0040, 50 },
105 { 0x13, 0x0070, 200 },
131 { 0x07, 0x0015, 30 },
138 void zipitz2_spi_sda(int set
)
142 writel((1 << 13), GPSR0
);
144 writel((1 << 13), GPCR0
);
147 void zipitz2_spi_scl(int set
)
151 writel((1 << 22), GPCR0
);
153 writel((1 << 22), GPSR0
);
156 unsigned char zipitz2_spi_read(void)
159 return !!(readl(GPLR1
) & (1 << 8));
162 int spi_cs_is_valid(unsigned int bus
, unsigned int cs
)
168 void spi_cs_activate(struct spi_slave
*slave
)
171 writel((1 << 24), GPCR2
);
174 void spi_cs_deactivate(struct spi_slave
*slave
)
177 writel((1 << 24), GPSR2
);
184 unsigned char reg
[3] = { 0x74, 0x00, 0 };
185 unsigned char data
[3] = { 0x76, 0, 0 };
186 unsigned char dummy
[3] = { 0, 0, 0 };
189 writel(readl(GAFR0_L
) | 0x00800000, GAFR0_L
);
190 /* Enable clock to all PWM */
191 writel(readl(CKEN
) | 0x3, CKEN
);
193 writel(0x4f, PWM_CTRL2
);
194 writel(0x2ff, PWM_PWDUTY2
);
195 writel(792, PWM_PERVAL2
);
197 /* Toggle the reset pin to reset the LCD */
198 writel((1 << 19), GPSR0
);
200 writel((1 << 19), GPCR0
);
202 writel((1 << 19), GPSR0
);
205 /* Program the LCD init sequence */
206 for (i
= 0; i
< sizeof(lcd_data
) / sizeof(lcd_data
[0]); i
++) {
209 reg
[2] = lcd_data
[i
].reg
;
210 spi_xfer(NULL
, 24, reg
, dummy
, SPI_XFER_BEGIN
| SPI_XFER_END
);
213 data
[1] = lcd_data
[i
].data
>> 8;
214 data
[2] = lcd_data
[i
].data
& 0xff;
215 spi_xfer(NULL
, 24, data
, dummy
, SPI_XFER_BEGIN
| SPI_XFER_END
);
217 if (lcd_data
[i
].mdelay
)
218 udelay(lcd_data
[i
].mdelay
* 1000);
221 writel((1 << 11), GPSR0
);