1 /* 2 * Creative ZEN X-Fi3 board 3 * 4 * Copyright (C) 2013 Marek Vasut <marex@denx.de> 5 * 6 * Hardware investigation done by: 7 * 8 * Amaury Pouly <amaury.pouly@gmail.com> 9 * 10 * SPDX-License-Identifier: GPL-2.0+ 11 */ 12 13 #include <common.h> 14 #include <errno.h> 15 #include <asm/gpio.h> 16 #include <asm/io.h> 17 #include <asm/arch/iomux-mx23.h> 18 #include <asm/arch/imx-regs.h> 19 #include <asm/arch/clock.h> 20 #include <asm/arch/sys_proto.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 /* 25 * Functions 26 */ 27 int board_early_init_f(void) 28 { 29 /* IO0 clock at 480MHz */ 30 mxs_set_ioclk(MXC_IOCLK0, 480000); 31 32 /* SSP0 clock at 96MHz */ 33 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0); 34 35 return 0; 36 } 37 38 int dram_init(void) 39 { 40 return mxs_dram_init(); 41 } 42 43 #ifdef CONFIG_CMD_MMC 44 static int xfi3_mmc_cd(int id) 45 { 46 switch (id) { 47 case 0: 48 /* The SSP_DETECT is inverted on this board. */ 49 return gpio_get_value(MX23_PAD_SSP1_DETECT__GPIO_2_1); 50 case 1: 51 /* Phison bridge always present */ 52 return 1; 53 default: 54 return 0; 55 } 56 } 57 58 int board_mmc_init(bd_t *bis) 59 { 60 int ret; 61 62 /* MicroSD slot */ 63 gpio_direction_input(MX23_PAD_SSP1_DETECT__GPIO_2_1); 64 gpio_direction_output(MX23_PAD_GPMI_D07__GPIO_0_7, 0); 65 ret = mxsmmc_initialize(bis, 0, NULL, xfi3_mmc_cd); 66 if (ret) 67 return ret; 68 69 /* Phison SD-NAND bridge */ 70 ret = mxsmmc_initialize(bis, 1, NULL, xfi3_mmc_cd); 71 72 return ret; 73 } 74 #endif 75 76 #ifdef CONFIG_VIDEO_MXS 77 static int mxsfb_write_byte(uint32_t payload, const unsigned int data) 78 { 79 struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; 80 const unsigned int timeout = 0x10000; 81 82 if (mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN, 83 timeout)) 84 return -ETIMEDOUT; 85 86 writel((1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) | 87 (1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET), 88 ®s->hw_lcdif_transfer_count); 89 90 writel(LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_RUN, 91 ®s->hw_lcdif_ctrl_clr); 92 93 if (data) 94 writel(LCDIF_CTRL_DATA_SELECT, ®s->hw_lcdif_ctrl_set); 95 96 writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set); 97 98 if (mxs_wait_mask_clr(®s->hw_lcdif_lcdif_stat_reg, 1 << 29, 99 timeout)) 100 return -ETIMEDOUT; 101 102 writel(payload, ®s->hw_lcdif_data); 103 return mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN, 104 timeout); 105 } 106 107 static void mxsfb_write_register(uint32_t reg, uint32_t data) 108 { 109 mxsfb_write_byte(reg, 0); 110 mxsfb_write_byte(data, 1); 111 } 112 113 static const struct { 114 uint8_t reg; 115 uint8_t delay; 116 uint16_t val; 117 } lcd_regs[] = { 118 { 0x01, 0, 0x001c }, 119 { 0x02, 0, 0x0100 }, 120 /* Writing 0x30 to reg. 0x03 flips the LCD */ 121 { 0x03, 0, 0x1038 }, 122 { 0x08, 0, 0x0808 }, 123 /* This can contain 0x111 to rotate the LCD. */ 124 { 0x0c, 0, 0x0000 }, 125 { 0x0f, 0, 0x0c01 }, 126 { 0x20, 0, 0x0000 }, 127 { 0x21, 30, 0x0000 }, 128 /* Wait 30 mS here */ 129 { 0x10, 0, 0x0a00 }, 130 { 0x11, 30, 0x1038 }, 131 /* Wait 30 mS here */ 132 { 0x12, 0, 0x1010 }, 133 { 0x13, 0, 0x0050 }, 134 { 0x14, 0, 0x4f58 }, 135 { 0x30, 0, 0x0000 }, 136 { 0x31, 0, 0x00db }, 137 { 0x32, 0, 0x0000 }, 138 { 0x33, 0, 0x0000 }, 139 { 0x34, 0, 0x00db }, 140 { 0x35, 0, 0x0000 }, 141 { 0x36, 0, 0x00af }, 142 { 0x37, 0, 0x0000 }, 143 { 0x38, 0, 0x00db }, 144 { 0x39, 0, 0x0000 }, 145 { 0x50, 0, 0x0000 }, 146 { 0x51, 0, 0x0705 }, 147 { 0x52, 0, 0x0e0a }, 148 { 0x53, 0, 0x0300 }, 149 { 0x54, 0, 0x0a0e }, 150 { 0x55, 0, 0x0507 }, 151 { 0x56, 0, 0x0000 }, 152 { 0x57, 0, 0x0003 }, 153 { 0x58, 0, 0x090a }, 154 { 0x59, 30, 0x0a09 }, 155 /* Wait 30 mS here */ 156 { 0x07, 30, 0x1017 }, 157 /* Wait 40 mS here */ 158 { 0x36, 0, 0x00af }, 159 { 0x37, 0, 0x0000 }, 160 { 0x38, 0, 0x00db }, 161 { 0x39, 0, 0x0000 }, 162 { 0x20, 0, 0x0000 }, 163 { 0x21, 0, 0x0000 }, 164 }; 165 166 void mxsfb_system_setup(void) 167 { 168 struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; 169 int i; 170 171 /* Switch the LCDIF into System-Mode */ 172 writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DOTCLK_MODE | 173 LCDIF_CTRL_BYPASS_COUNT, ®s->hw_lcdif_ctrl_clr); 174 175 /* Restart the SmartLCD controller */ 176 mdelay(50); 177 writel(1, ®s->hw_lcdif_ctrl1_set); 178 mdelay(50); 179 writel(1, ®s->hw_lcdif_ctrl1_clr); 180 mdelay(50); 181 writel(1, ®s->hw_lcdif_ctrl1_set); 182 mdelay(50); 183 184 /* Program the SmartLCD controller */ 185 writel(LCDIF_CTRL1_RECOVER_ON_UNDERFLOW, ®s->hw_lcdif_ctrl1_set); 186 187 writel((0x03 << LCDIF_TIMING_CMD_HOLD_OFFSET) | 188 (0x03 << LCDIF_TIMING_CMD_SETUP_OFFSET) | 189 (0x03 << LCDIF_TIMING_DATA_HOLD_OFFSET) | 190 (0x02 << LCDIF_TIMING_DATA_SETUP_OFFSET), 191 ®s->hw_lcdif_timing); 192 193 /* 194 * OTM2201A init and configuration sequence. 195 */ 196 for (i = 0; i < ARRAY_SIZE(lcd_regs); i++) { 197 mxsfb_write_register(lcd_regs[i].reg, lcd_regs[i].val); 198 if (lcd_regs[i].delay) 199 mdelay(lcd_regs[i].delay); 200 } 201 /* Turn on Framebuffer Upload Mode */ 202 mxsfb_write_byte(0x22, 0); 203 204 writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DATA_SELECT, 205 ®s->hw_lcdif_ctrl_set); 206 } 207 #endif 208 209 int board_init(void) 210 { 211 /* Adress of boot parameters */ 212 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; 213 214 /* Turn on PWM backlight */ 215 gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1); 216 217 return 0; 218 } 219 220 int board_eth_init(bd_t *bis) 221 { 222 usb_eth_initialize(bis); 223 return 0; 224 } 225