220 lines
4.0 KiB
C
220 lines
4.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2009
|
|
* Marek Vasut <marek.vasut@gmail.com>
|
|
*
|
|
* Heavily based on pxa255_idp platform
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <serial.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/pxa.h>
|
|
#include <asm/arch/regs-mmc.h>
|
|
#include <spi.h>
|
|
#include <asm/io.h>
|
|
#include <usb.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifdef CONFIG_CMD_SPI
|
|
void lcd_start(void);
|
|
#else
|
|
inline void lcd_start(void) {};
|
|
#endif
|
|
|
|
/*
|
|
* Miscelaneous platform dependent initialisations
|
|
*/
|
|
int board_init(void)
|
|
{
|
|
/* arch number of Z2 */
|
|
gd->bd->bi_arch_number = MACH_TYPE_ZIPIT2;
|
|
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = 0xa0000100;
|
|
|
|
/* Enable LCD */
|
|
lcd_start();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
pxa2xx_dram_init();
|
|
gd->ram_size = PHYS_SDRAM_1_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_USB
|
|
int board_usb_init(int index, enum usb_init_type init)
|
|
{
|
|
/* enable port 2 */
|
|
writel(readl(UP2OCR) | UP2OCR_HXOE | UP2OCR_HXS |
|
|
UP2OCR_DMPDE | UP2OCR_DPPDE, UP2OCR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_usb_cleanup(int index, enum usb_init_type init)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void usb_board_stop(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
int dram_init_banksize(void)
|
|
{
|
|
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
|
|
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_MMC
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
pxa_mmc_register(0);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_SPI
|
|
|
|
struct {
|
|
unsigned char reg;
|
|
unsigned short data;
|
|
unsigned char mdelay;
|
|
} lcd_data[] = {
|
|
{ 0x07, 0x0000, 0 },
|
|
{ 0x13, 0x0000, 10 },
|
|
{ 0x11, 0x3004, 0 },
|
|
{ 0x14, 0x200F, 0 },
|
|
{ 0x10, 0x1a20, 0 },
|
|
{ 0x13, 0x0040, 50 },
|
|
{ 0x13, 0x0060, 0 },
|
|
{ 0x13, 0x0070, 200 },
|
|
{ 0x01, 0x0127, 0 },
|
|
{ 0x02, 0x0700, 0 },
|
|
{ 0x03, 0x1030, 0 },
|
|
{ 0x08, 0x0208, 0 },
|
|
{ 0x0B, 0x0620, 0 },
|
|
{ 0x0C, 0x0110, 0 },
|
|
{ 0x30, 0x0120, 0 },
|
|
{ 0x31, 0x0127, 0 },
|
|
{ 0x32, 0x0000, 0 },
|
|
{ 0x33, 0x0503, 0 },
|
|
{ 0x34, 0x0727, 0 },
|
|
{ 0x35, 0x0124, 0 },
|
|
{ 0x36, 0x0706, 0 },
|
|
{ 0x37, 0x0701, 0 },
|
|
{ 0x38, 0x0F00, 0 },
|
|
{ 0x39, 0x0F00, 0 },
|
|
{ 0x40, 0x0000, 0 },
|
|
{ 0x41, 0x0000, 0 },
|
|
{ 0x42, 0x013f, 0 },
|
|
{ 0x43, 0x0000, 0 },
|
|
{ 0x44, 0x013f, 0 },
|
|
{ 0x45, 0x0000, 0 },
|
|
{ 0x46, 0xef00, 0 },
|
|
{ 0x47, 0x013f, 0 },
|
|
{ 0x48, 0x0000, 0 },
|
|
{ 0x07, 0x0015, 30 },
|
|
{ 0x07, 0x0017, 0 },
|
|
{ 0x20, 0x0000, 0 },
|
|
{ 0x21, 0x0000, 0 },
|
|
{ 0x22, 0x0000, 0 },
|
|
};
|
|
|
|
void zipitz2_spi_sda(int set)
|
|
{
|
|
/* GPIO 13 */
|
|
if (set)
|
|
writel((1 << 13), GPSR0);
|
|
else
|
|
writel((1 << 13), GPCR0);
|
|
}
|
|
|
|
void zipitz2_spi_scl(int set)
|
|
{
|
|
/* GPIO 22 */
|
|
if (set)
|
|
writel((1 << 22), GPCR0);
|
|
else
|
|
writel((1 << 22), GPSR0);
|
|
}
|
|
|
|
unsigned char zipitz2_spi_read(void)
|
|
{
|
|
/* GPIO 40 */
|
|
return !!(readl(GPLR1) & (1 << 8));
|
|
}
|
|
|
|
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
|
|
{
|
|
/* Always valid */
|
|
return 1;
|
|
}
|
|
|
|
void spi_cs_activate(struct spi_slave *slave)
|
|
{
|
|
/* GPIO 88 low */
|
|
writel((1 << 24), GPCR2);
|
|
}
|
|
|
|
void spi_cs_deactivate(struct spi_slave *slave)
|
|
{
|
|
/* GPIO 88 high */
|
|
writel((1 << 24), GPSR2);
|
|
}
|
|
|
|
void lcd_start(void)
|
|
{
|
|
int i;
|
|
unsigned char reg[3] = { 0x74, 0x00, 0 };
|
|
unsigned char data[3] = { 0x76, 0, 0 };
|
|
unsigned char dummy[3] = { 0, 0, 0 };
|
|
|
|
/* PWM2 AF */
|
|
writel(readl(GAFR0_L) | 0x00800000, GAFR0_L);
|
|
/* Enable clock to all PWM */
|
|
writel(readl(CKEN) | 0x3, CKEN);
|
|
/* Configure PWM2 */
|
|
writel(0x4f, PWM_CTRL2);
|
|
writel(0x2ff, PWM_PWDUTY2);
|
|
writel(792, PWM_PERVAL2);
|
|
|
|
/* Toggle the reset pin to reset the LCD */
|
|
writel((1 << 19), GPSR0);
|
|
udelay(100000);
|
|
writel((1 << 19), GPCR0);
|
|
udelay(20000);
|
|
writel((1 << 19), GPSR0);
|
|
udelay(20000);
|
|
|
|
/* Program the LCD init sequence */
|
|
for (i = 0; i < sizeof(lcd_data) / sizeof(lcd_data[0]); i++) {
|
|
reg[0] = 0x74;
|
|
reg[1] = 0x0;
|
|
reg[2] = lcd_data[i].reg;
|
|
spi_xfer(NULL, 24, reg, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
|
|
|
|
data[0] = 0x76;
|
|
data[1] = lcd_data[i].data >> 8;
|
|
data[2] = lcd_data[i].data & 0xff;
|
|
spi_xfer(NULL, 24, data, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
|
|
|
|
if (lcd_data[i].mdelay)
|
|
udelay(lcd_data[i].mdelay * 1000);
|
|
}
|
|
|
|
writel((1 << 11), GPSR0);
|
|
}
|
|
#endif
|