mcx.c
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/*
* Copyright (C) 2011 Ilya Yanok, Emcraft Systems
*
* Based on ti/evm/evm.c
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/omap_gpio.h>
#include <asm/arch/dss.h>
#include <asm/arch/clock.h>
#include <errno.h>
#include <i2c.h>
#ifdef CONFIG_USB_EHCI_HCD
#include <usb.h>
#include <asm/ehci-omap.h>
#endif
#include "mcx.h"
DECLARE_GLOBAL_DATA_PTR;
#define HOT_WATER_BUTTON 42
#define LCD_OUTPUT 55
/* Address of the framebuffer in RAM. */
#define FB_START_ADDRESS 0x88000000
#ifdef CONFIG_USB_EHCI_HCD
static struct omap_usbhs_board_data usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
};
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
}
int ehci_hcd_stop(int index)
{
return omap_ehci_hcd_stop();
}
#endif
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
gpio_direction_output(LCD_OUTPUT, 0);
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
if (gpio_request(HOT_WATER_BUTTON, "hot-water-button") < 0) {
puts("Failed to get hot-water-button pin\n");
return -ENODEV;
}
gpio_direction_input(HOT_WATER_BUTTON);
/*
* if hot-water-button is pressed
* change bootcmd
*/
if (gpio_get_value(HOT_WATER_BUTTON))
return 0;
env_set("bootcmd", "run swupdate");
return 0;
}
#endif
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
* hardware. Many pins need to be moved from protect to primary
* mode.
*/
void set_muxconf_regs(void)
{
MUX_MCX();
}
#if defined(CONFIG_MMC_OMAP_HS)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, -1, -1);
}
#endif
#if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
static struct panel_config lcd_cfg = {
.timing_h = PANEL_TIMING_H(40, 40, 48),
.timing_v = PANEL_TIMING_V(29, 13, 3),
.pol_freq = 0x00003000, /* Pol Freq */
.divisor = 0x0001000E,
.panel_type = 0x01, /* TFT */
.data_lines = 0x03, /* 24 Bit RGB */
.load_mode = 0x02, /* Frame Mode */
.panel_color = 0,
.lcd_size = PANEL_LCD_SIZE(800, 480),
.gfx_format = GFXFORMAT_RGB24_UNPACKED,
};
int board_video_init(void)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
void *fb;
fb = (void *)FB_START_ADDRESS;
lcd_cfg.frame_buffer = fb;
setbits_le32(&prcm_base->fclken_dss, FCK_DSS_ON);
setbits_le32(&prcm_base->iclken_dss, ICK_DSS_ON);
omap3_dss_panel_config(&lcd_cfg);
omap3_dss_enable();
return 0;
}
#endif