diff options
Diffstat (limited to 'board/creative/xfi3/xfi3.c')
| -rw-r--r-- | board/creative/xfi3/xfi3.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/board/creative/xfi3/xfi3.c b/board/creative/xfi3/xfi3.c new file mode 100644 index 0000000..1d83ea8 --- /dev/null +++ b/board/creative/xfi3/xfi3.c @@ -0,0 +1,224 @@ +/* + * 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; +} |