1 // SPDX-License-Identifier: GPL-2.0+
3 * Creative ZEN X-Fi3 board
7 * Hardware investigation done by:
16 #include <asm/global_data.h>
19 #include <asm/arch/iomux-mx23.h>
20 #include <asm/arch/imx-regs.h>
21 #include <asm/arch/clock.h>
22 #include <asm/arch/sys_proto.h>
23 #include <linux/delay.h>
25 DECLARE_GLOBAL_DATA_PTR;
30 int board_early_init_f(void)
32 /* IO0 clock at 480MHz */
33 mxs_set_ioclk(MXC_IOCLK0, 480000);
35 /* SSP0 clock at 96MHz */
36 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
43 return mxs_dram_init();
47 static int xfi3_mmc_cd(int id)
51 /* The SSP_DETECT is inverted on this board. */
52 return gpio_get_value(MX23_PAD_SSP1_DETECT__GPIO_2_1);
54 /* Phison bridge always present */
61 int board_mmc_init(struct bd_info *bis)
66 gpio_direction_input(MX23_PAD_SSP1_DETECT__GPIO_2_1);
67 gpio_direction_output(MX23_PAD_GPMI_D07__GPIO_0_7, 0);
68 ret = mxsmmc_initialize(bis, 0, NULL, xfi3_mmc_cd);
72 /* Phison SD-NAND bridge */
73 ret = mxsmmc_initialize(bis, 1, NULL, xfi3_mmc_cd);
79 #ifdef CONFIG_VIDEO_MXS
80 static int mxsfb_write_byte(uint32_t payload, const unsigned int data)
82 struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
83 const unsigned int timeout = 0x10000;
85 if (mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
89 writel((1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
90 (1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET),
91 ®s->hw_lcdif_transfer_count);
93 writel(LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_RUN,
94 ®s->hw_lcdif_ctrl_clr);
97 writel(LCDIF_CTRL_DATA_SELECT, ®s->hw_lcdif_ctrl_set);
99 writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set);
101 if (mxs_wait_mask_clr(®s->hw_lcdif_lcdif_stat_reg, 1 << 29,
105 writel(payload, ®s->hw_lcdif_data);
106 return mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
110 static void mxsfb_write_register(uint32_t reg, uint32_t data)
112 mxsfb_write_byte(reg, 0);
113 mxsfb_write_byte(data, 1);
116 static const struct {
123 /* Writing 0x30 to reg. 0x03 flips the LCD */
126 /* This can contain 0x111 to rotate the LCD. */
130 { 0x21, 30, 0x0000 },
131 /* Wait 30 mS here */
133 { 0x11, 30, 0x1038 },
134 /* Wait 30 mS here */
157 { 0x59, 30, 0x0a09 },
158 /* Wait 30 mS here */
159 { 0x07, 30, 0x1017 },
160 /* Wait 40 mS here */
169 void mxsfb_system_setup(void)
171 struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
174 /* Switch the LCDIF into System-Mode */
175 writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DOTCLK_MODE |
176 LCDIF_CTRL_BYPASS_COUNT, ®s->hw_lcdif_ctrl_clr);
178 /* Restart the SmartLCD controller */
180 writel(1, ®s->hw_lcdif_ctrl1_set);
182 writel(1, ®s->hw_lcdif_ctrl1_clr);
184 writel(1, ®s->hw_lcdif_ctrl1_set);
187 /* Program the SmartLCD controller */
188 writel(LCDIF_CTRL1_RECOVER_ON_UNDERFLOW, ®s->hw_lcdif_ctrl1_set);
190 writel((0x03 << LCDIF_TIMING_CMD_HOLD_OFFSET) |
191 (0x03 << LCDIF_TIMING_CMD_SETUP_OFFSET) |
192 (0x03 << LCDIF_TIMING_DATA_HOLD_OFFSET) |
193 (0x02 << LCDIF_TIMING_DATA_SETUP_OFFSET),
194 ®s->hw_lcdif_timing);
197 * OTM2201A init and configuration sequence.
199 for (i = 0; i < ARRAY_SIZE(lcd_regs); i++) {
200 mxsfb_write_register(lcd_regs[i].reg, lcd_regs[i].val);
201 if (lcd_regs[i].delay)
202 mdelay(lcd_regs[i].delay);
204 /* Turn on Framebuffer Upload Mode */
205 mxsfb_write_byte(0x22, 0);
207 writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DATA_SELECT,
208 ®s->hw_lcdif_ctrl_set);
214 /* Adress of boot parameters */
215 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
217 /* Turn on PWM backlight */
218 gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
223 int board_eth_init(struct bd_info *bis)
225 usb_eth_initialize(bis);