colibri-imx6ull.c 6.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2018-2019 Toradex AG
  4. */
  5. #include <common.h>
  6. #include <init.h>
  7. #include <asm/arch/clock.h>
  8. #include <asm/arch/crm_regs.h>
  9. #include <asm/arch/imx-regs.h>
  10. #include <asm/arch-mx6/clock.h>
  11. #include <asm/arch-mx6/imx-regs.h>
  12. #include <asm/arch-mx6/mx6ull_pins.h>
  13. #include <asm/arch/sys_proto.h>
  14. #include <asm/gpio.h>
  15. #include <asm/mach-imx/boot_mode.h>
  16. #include <asm/mach-imx/iomux-v3.h>
  17. #include <asm/io.h>
  18. #include <dm.h>
  19. #include <dm/platform_data/serial_mxc.h>
  20. #include <env.h>
  21. #include <fdt_support.h>
  22. #include <imx_thermal.h>
  23. #include <jffs2/load_kernel.h>
  24. #include <linux/sizes.h>
  25. #include <miiphy.h>
  26. #include <mtd_node.h>
  27. #include <netdev.h>
  28. #include "../common/tdx-common.h"
  29. #include "../common/tdx-cfg-block.h"
  30. DECLARE_GLOBAL_DATA_PTR;
  31. #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
  32. PAD_CTL_DSE_48ohm)
  33. #define MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR 0x2290040
  34. #define NAND_PAD_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
  35. #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_PUS_22K_UP)
  36. int dram_init(void)
  37. {
  38. gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
  39. return 0;
  40. }
  41. #ifdef CONFIG_NAND_MXS
  42. static void setup_gpmi_nand(void)
  43. {
  44. setup_gpmi_io_clk((3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) |
  45. (3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET));
  46. }
  47. #endif /* CONFIG_NAND_MXS */
  48. #ifdef CONFIG_VIDEO_MXS
  49. static iomux_v3_cfg_t const lcd_pads[] = {
  50. MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
  51. MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
  52. MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
  53. MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
  54. MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  55. MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  56. MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  57. MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  58. MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  59. MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  60. MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  61. MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  62. MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  63. MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  64. MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  65. MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  66. MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  67. MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  68. MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  69. MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  70. MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  71. MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  72. };
  73. static iomux_v3_cfg_t const backlight_pads[] = {
  74. /* Backlight On */
  75. MX6_PAD_JTAG_TMS__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
  76. /* Backlight PWM<A> (multiplexed pin) */
  77. MX6_PAD_NAND_WP_B__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
  78. };
  79. #define GPIO_BL_ON IMX_GPIO_NR(1, 11)
  80. #define GPIO_PWM_A IMX_GPIO_NR(4, 11)
  81. static int setup_lcd(void)
  82. {
  83. imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
  84. imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads));
  85. /* Set BL_ON */
  86. gpio_request(GPIO_BL_ON, "BL_ON");
  87. gpio_direction_output(GPIO_BL_ON, 1);
  88. /* Set PWM<A> to full brightness (assuming inversed polarity) */
  89. gpio_request(GPIO_PWM_A, "PWM<A>");
  90. gpio_direction_output(GPIO_PWM_A, 0);
  91. return 0;
  92. }
  93. #endif
  94. #ifdef CONFIG_FEC_MXC
  95. static int setup_fec(void)
  96. {
  97. struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
  98. int ret;
  99. /* provide the PHY clock from the i.MX 6 */
  100. ret = enable_fec_anatop_clock(1, ENET_50MHZ);
  101. if (ret)
  102. return ret;
  103. /* Use 50M anatop REF_CLK and output it on ENET2_TX_CLK */
  104. clrsetbits_le32(&iomuxc_regs->gpr[1],
  105. IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
  106. IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
  107. /* give new Ethernet PHY power save mode circuitry time to settle */
  108. mdelay(300);
  109. return 0;
  110. }
  111. int board_phy_config(struct phy_device *phydev)
  112. {
  113. if (phydev->drv->config)
  114. phydev->drv->config(phydev);
  115. return 0;
  116. }
  117. #endif /* CONFIG_FEC_MXC */
  118. int board_init(void)
  119. {
  120. /* address of boot parameters */
  121. gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  122. #ifdef CONFIG_FEC_MXC
  123. setup_fec();
  124. #endif
  125. #ifdef CONFIG_NAND_MXS
  126. setup_gpmi_nand();
  127. #endif
  128. #ifdef CONFIG_VIDEO_MXS
  129. setup_lcd();
  130. #endif
  131. return 0;
  132. }
  133. #ifdef CONFIG_CMD_BMODE
  134. /* TODO */
  135. static const struct boot_mode board_boot_modes[] = {
  136. /* 4 bit bus width */
  137. {"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
  138. {"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
  139. {NULL, 0},
  140. };
  141. #endif
  142. int board_late_init(void)
  143. {
  144. #ifdef CONFIG_TDX_CFG_BLOCK
  145. /*
  146. * If we have a valid config block and it says we are a module with
  147. * Wi-Fi/Bluetooth make sure we use the -wifi device tree.
  148. */
  149. if (tdx_hw_tag.prodid == COLIBRI_IMX6ULL_WIFI_BT_IT ||
  150. tdx_hw_tag.prodid == COLIBRI_IMX6ULL_WIFI_BT)
  151. env_set("variant", "-wifi");
  152. #endif
  153. /*
  154. * Disable output driver of PAD CCM_PMIC_STBY_REQ. This prevents the
  155. * SOC to request for a lower voltage during sleep. This is necessary
  156. * because the voltage is changing too slow for the SOC to wake up
  157. * properly.
  158. */
  159. __raw_writel(0x8080, MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR);
  160. #ifdef CONFIG_CMD_BMODE
  161. add_board_boot_modes(board_boot_modes);
  162. #endif
  163. #ifdef CONFIG_CMD_USB_SDP
  164. if (is_boot_from_usb()) {
  165. printf("Serial Downloader recovery mode, using sdp command\n");
  166. env_set("bootdelay", "0");
  167. env_set("bootcmd", "sdp 0");
  168. }
  169. #endif /* CONFIG_CMD_USB_SDP */
  170. return 0;
  171. }
  172. int checkboard(void)
  173. {
  174. printf("Model: Toradex Colibri iMX6ULL\n");
  175. return 0;
  176. }
  177. #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  178. int ft_board_setup(void *blob, bd_t *bd)
  179. {
  180. #if defined(CONFIG_FDT_FIXUP_PARTITIONS)
  181. static struct node_info nodes[] = {
  182. { "fsl,imx6ull-gpmi-nand", MTD_DEV_TYPE_NAND, },
  183. { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, },
  184. };
  185. /* Update partition nodes using info from mtdparts env var */
  186. puts(" Updating MTD partitions...\n");
  187. fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
  188. #endif
  189. return ft_common_board_setup(blob, bd);
  190. }
  191. #endif
  192. static struct mxc_serial_platdata mxc_serial_plat = {
  193. .reg = (struct mxc_uart *)UART1_BASE,
  194. .use_dte = 1,
  195. };
  196. U_BOOT_DEVICE(mxc_serial) = {
  197. .name = "serial_mxc",
  198. .platdata = &mxc_serial_plat,
  199. };