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/*
* Creative ZEN X-Fi3 board
*
* Copyright (C) 2013 Marek Vasut <marex@denx.de>
*
* Hardware investigation done by:
*
* Amaury Pouly <amaury.pouly@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/iomux-mx23.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Functions
*/
int board_early_init_f(void)
{
/* IO0 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK0, 480000);
/* SSP0 clock at 96MHz */
mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
return 0;
}
int dram_init(void)
{
return mxs_dram_init();
}
#ifdef CONFIG_CMD_MMC
static int xfi3_mmc_cd(int id)
{
switch (id) {
case 0:
/* The SSP_DETECT is inverted on this board. */
return gpio_get_value(MX23_PAD_SSP1_DETECT__GPIO_2_1);
case 1:
/* Phison bridge always present */
return 1;
default:
return 0;
}
}
int board_mmc_init(bd_t *bis)
{
int ret;
/* MicroSD slot */
gpio_direction_input(MX23_PAD_SSP1_DETECT__GPIO_2_1);
gpio_direction_output(MX23_PAD_GPMI_D07__GPIO_0_7, 0);
ret = mxsmmc_initialize(bis, 0, NULL, xfi3_mmc_cd);
if (ret)
return ret;
/* Phison SD-NAND bridge */
ret = mxsmmc_initialize(bis, 1, NULL, xfi3_mmc_cd);
return ret;
}
#endif
#ifdef CONFIG_VIDEO_MXS
static int mxsfb_write_byte(uint32_t payload, const unsigned int data)
{
struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
const unsigned int timeout = 0x10000;
if (mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
timeout))
return -ETIMEDOUT;
writel((1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET),
®s->hw_lcdif_transfer_count);
writel(LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_RUN,
®s->hw_lcdif_ctrl_clr);
if (data)
writel(LCDIF_CTRL_DATA_SELECT, ®s->hw_lcdif_ctrl_set);
writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set);
if (mxs_wait_mask_clr(®s->hw_lcdif_lcdif_stat_reg, 1 << 29,
timeout))
return -ETIMEDOUT;
writel(payload, ®s->hw_lcdif_data);
return mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
timeout);
}
static void mxsfb_write_register(uint32_t reg, uint32_t data)
{
mxsfb_write_byte(reg, 0);
mxsfb_write_byte(data, 1);
}
static const struct {
uint8_t reg;
uint8_t delay;
uint16_t val;
} lcd_regs[] = {
{ 0x01, 0, 0x001c },
{ 0x02, 0, 0x0100 },
/* Writing 0x30 to reg. 0x03 flips the LCD */
{ 0x03, 0, 0x1038 },
{ 0x08, 0, 0x0808 },
/* This can contain 0x111 to rotate the LCD. */
{ 0x0c, 0, 0x0000 },
{ 0x0f, 0, 0x0c01 },
{ 0x20, 0, 0x0000 },
{ 0x21, 30, 0x0000 },
/* Wait 30 mS here */
{ 0x10, 0, 0x0a00 },
{ 0x11, 30, 0x1038 },
/* Wait 30 mS here */
{ 0x12, 0, 0x1010 },
{ 0x13, 0, 0x0050 },
{ 0x14, 0, 0x4f58 },
{ 0x30, 0, 0x0000 },
{ 0x31, 0, 0x00db },
{ 0x32, 0, 0x0000 },
{ 0x33, 0, 0x0000 },
{ 0x34, 0, 0x00db },
{ 0x35, 0, 0x0000 },
{ 0x36, 0, 0x00af },
{ 0x37, 0, 0x0000 },
{ 0x38, 0, 0x00db },
{ 0x39, 0, 0x0000 },
{ 0x50, 0, 0x0000 },
{ 0x51, 0, 0x0705 },
{ 0x52, 0, 0x0e0a },
{ 0x53, 0, 0x0300 },
{ 0x54, 0, 0x0a0e },
{ 0x55, 0, 0x0507 },
{ 0x56, 0, 0x0000 },
{ 0x57, 0, 0x0003 },
{ 0x58, 0, 0x090a },
{ 0x59, 30, 0x0a09 },
/* Wait 30 mS here */
{ 0x07, 30, 0x1017 },
/* Wait 40 mS here */
{ 0x36, 0, 0x00af },
{ 0x37, 0, 0x0000 },
{ 0x38, 0, 0x00db },
{ 0x39, 0, 0x0000 },
{ 0x20, 0, 0x0000 },
{ 0x21, 0, 0x0000 },
};
void board_mxsfb_system_setup(void)
{
struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
int i;
/* Switch the LCDIF into System-Mode */
writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DOTCLK_MODE |
LCDIF_CTRL_BYPASS_COUNT, ®s->hw_lcdif_ctrl_clr);
/* Restart the SmartLCD controller */
mdelay(50);
writel(1, ®s->hw_lcdif_ctrl1_set);
mdelay(50);
writel(1, ®s->hw_lcdif_ctrl1_clr);
mdelay(50);
writel(1, ®s->hw_lcdif_ctrl1_set);
mdelay(50);
/* Program the SmartLCD controller */
writel(LCDIF_CTRL1_RECOVER_ON_UNDERFLOW, ®s->hw_lcdif_ctrl1_set);
writel((0x03 << LCDIF_TIMING_CMD_HOLD_OFFSET) |
(0x03 << LCDIF_TIMING_CMD_SETUP_OFFSET) |
(0x03 << LCDIF_TIMING_DATA_HOLD_OFFSET) |
(0x02 << LCDIF_TIMING_DATA_SETUP_OFFSET),
®s->hw_lcdif_timing);
/*
* OTM2201A init and configuration sequence.
*/
for (i = 0; i < ARRAY_SIZE(lcd_regs); i++) {
mxsfb_write_register(lcd_regs[i].reg, lcd_regs[i].val);
if (lcd_regs[i].delay)
mdelay(lcd_regs[i].delay);
}
/* Turn on Framebuffer Upload Mode */
mxsfb_write_byte(0x22, 0);
writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DATA_SELECT,
®s->hw_lcdif_ctrl_set);
}
#endif
int board_init(void)
{
/* Adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
/* Turn on PWM backlight */
gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
return 0;
}
int board_eth_init(bd_t *bis)
{
usb_eth_initialize(bis);
return 0;
}
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