u-boot/board/zipitz2/zipitz2.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

219 lines
4 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