mx6sxsabresd.c 16 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2014 Freescale Semiconductor, Inc.
  4. *
  5. * Author: Fabio Estevam <fabio.estevam@freescale.com>
  6. */
  7. #include <init.h>
  8. #include <asm/arch/clock.h>
  9. #include <asm/arch/crm_regs.h>
  10. #include <asm/arch/iomux.h>
  11. #include <asm/arch/imx-regs.h>
  12. #include <asm/arch/mx6-pins.h>
  13. #include <asm/arch/sys_proto.h>
  14. #include <asm/gpio.h>
  15. #include <asm/mach-imx/iomux-v3.h>
  16. #include <asm/io.h>
  17. #include <asm/mach-imx/mxc_i2c.h>
  18. #include <env.h>
  19. #include <linux/sizes.h>
  20. #include <common.h>
  21. #include <fsl_esdhc_imx.h>
  22. #include <mmc.h>
  23. #include <i2c.h>
  24. #include <miiphy.h>
  25. #include <netdev.h>
  26. #include <power/pmic.h>
  27. #include <power/pfuze100_pmic.h>
  28. #include "../common/pfuze.h"
  29. DECLARE_GLOBAL_DATA_PTR;
  30. #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
  31. PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
  32. PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
  33. #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
  34. PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
  35. PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
  36. #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
  37. PAD_CTL_SPEED_HIGH | \
  38. PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
  39. #define ENET_CLK_PAD_CTRL (PAD_CTL_SPEED_MED | \
  40. PAD_CTL_DSE_120ohm | PAD_CTL_SRE_FAST)
  41. #define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
  42. PAD_CTL_SPEED_HIGH | PAD_CTL_SRE_FAST)
  43. #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
  44. PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
  45. #define WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
  46. PAD_CTL_DSE_40ohm)
  47. int dram_init(void)
  48. {
  49. gd->ram_size = imx_ddr_size();
  50. return 0;
  51. }
  52. static iomux_v3_cfg_t const uart1_pads[] = {
  53. MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  54. MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  55. };
  56. static iomux_v3_cfg_t const wdog_b_pad = {
  57. MX6_PAD_GPIO1_IO13__GPIO1_IO_13 | MUX_PAD_CTRL(WDOG_PAD_CTRL),
  58. };
  59. static iomux_v3_cfg_t const fec1_pads[] = {
  60. MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
  61. MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
  62. MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  63. MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  64. MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  65. MX6_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  66. MX6_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  67. MX6_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
  68. MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
  69. MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  70. MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  71. MX6_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  72. MX6_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  73. MX6_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
  74. };
  75. static iomux_v3_cfg_t const peri_3v3_pads[] = {
  76. MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL),
  77. };
  78. static iomux_v3_cfg_t const phy_control_pads[] = {
  79. /* 25MHz Ethernet PHY Clock */
  80. MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
  81. /* ENET PHY Power */
  82. MX6_PAD_ENET2_COL__GPIO2_IO_6 | MUX_PAD_CTRL(NO_PAD_CTRL),
  83. /* AR8031 PHY Reset */
  84. MX6_PAD_ENET2_CRS__GPIO2_IO_7 | MUX_PAD_CTRL(NO_PAD_CTRL),
  85. };
  86. static void setup_iomux_uart(void)
  87. {
  88. imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  89. }
  90. static int setup_fec(void)
  91. {
  92. struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
  93. struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
  94. int reg, ret;
  95. /* Use 125MHz anatop loopback REF_CLK1 for ENET1 */
  96. clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);
  97. ret = enable_fec_anatop_clock(0, ENET_125MHZ);
  98. if (ret)
  99. return ret;
  100. imx_iomux_v3_setup_multiple_pads(phy_control_pads,
  101. ARRAY_SIZE(phy_control_pads));
  102. /* Enable the ENET power, active low */
  103. gpio_request(IMX_GPIO_NR(2, 6), "enet_rst");
  104. gpio_direction_output(IMX_GPIO_NR(2, 6) , 0);
  105. /* Reset AR8031 PHY */
  106. gpio_request(IMX_GPIO_NR(2, 7), "phy_rst");
  107. gpio_direction_output(IMX_GPIO_NR(2, 7) , 0);
  108. mdelay(10);
  109. gpio_set_value(IMX_GPIO_NR(2, 7), 1);
  110. reg = readl(&anatop->pll_enet);
  111. reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
  112. writel(reg, &anatop->pll_enet);
  113. return 0;
  114. }
  115. int board_eth_init(bd_t *bis)
  116. {
  117. imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
  118. setup_fec();
  119. return cpu_eth_init(bis);
  120. }
  121. int power_init_board(void)
  122. {
  123. struct udevice *dev;
  124. unsigned int reg;
  125. int ret;
  126. dev = pfuze_common_init();
  127. if (!dev)
  128. return -ENODEV;
  129. ret = pfuze_mode_init(dev, APS_PFM);
  130. if (ret < 0)
  131. return ret;
  132. /* Enable power of VGEN5 3V3, needed for SD3 */
  133. reg = pmic_reg_read(dev, PFUZE100_VGEN5VOL);
  134. reg &= ~LDO_VOL_MASK;
  135. reg |= (LDOB_3_30V | (1 << LDO_EN));
  136. pmic_reg_write(dev, PFUZE100_VGEN5VOL, reg);
  137. return 0;
  138. }
  139. int board_phy_config(struct phy_device *phydev)
  140. {
  141. /*
  142. * Enable 1.8V(SEL_1P5_1P8_POS_REG) on
  143. * Phy control debug reg 0
  144. */
  145. phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
  146. phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
  147. /* rgmii tx clock delay enable */
  148. phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
  149. phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
  150. if (phydev->drv->config)
  151. phydev->drv->config(phydev);
  152. return 0;
  153. }
  154. int board_early_init_f(void)
  155. {
  156. setup_iomux_uart();
  157. /* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
  158. imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
  159. ARRAY_SIZE(peri_3v3_pads));
  160. return 0;
  161. }
  162. int board_mmc_get_env_dev(int devno)
  163. {
  164. return devno;
  165. }
  166. #ifdef CONFIG_FSL_QSPI
  167. int board_qspi_init(void)
  168. {
  169. /* Set the clock */
  170. enable_qspi_clk(1);
  171. return 0;
  172. }
  173. #endif
  174. #ifdef CONFIG_VIDEO_MXS
  175. static iomux_v3_cfg_t const lcd_pads[] = {
  176. MX6_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
  177. MX6_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
  178. MX6_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
  179. MX6_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
  180. MX6_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  181. MX6_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  182. MX6_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  183. MX6_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  184. MX6_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  185. MX6_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  186. MX6_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  187. MX6_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  188. MX6_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  189. MX6_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  190. MX6_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  191. MX6_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  192. MX6_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  193. MX6_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  194. MX6_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  195. MX6_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  196. MX6_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  197. MX6_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  198. MX6_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  199. MX6_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  200. MX6_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  201. MX6_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  202. MX6_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  203. MX6_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
  204. MX6_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
  205. /* Use GPIO for Brightness adjustment, duty cycle = period */
  206. MX6_PAD_SD1_DATA2__GPIO6_IO_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
  207. };
  208. static int setup_lcd(void)
  209. {
  210. enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
  211. imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
  212. /* Reset the LCD */
  213. gpio_request(IMX_GPIO_NR(3, 27), "lcd_rst");
  214. gpio_direction_output(IMX_GPIO_NR(3, 27) , 0);
  215. udelay(500);
  216. gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);
  217. /* Set Brightness to high */
  218. gpio_request(IMX_GPIO_NR(6, 4), "lcd_bright");
  219. gpio_direction_output(IMX_GPIO_NR(6, 4) , 1);
  220. return 0;
  221. }
  222. #endif
  223. int board_init(void)
  224. {
  225. /* Address of boot parameters */
  226. gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  227. /*
  228. * Because kernel set WDOG_B mux before pad with the common pinctrl
  229. * framwork now and wdog reset will be triggered once set WDOG_B mux
  230. * with default pad setting, we set pad setting here to workaround this.
  231. * Since imx_iomux_v3_setup_pad also set mux before pad setting, we set
  232. * as GPIO mux firstly here to workaround it.
  233. */
  234. imx_iomux_v3_setup_pad(wdog_b_pad);
  235. /* Active high for ncp692 */
  236. gpio_request(IMX_GPIO_NR(4, 16), "ncp692_en");
  237. gpio_direction_output(IMX_GPIO_NR(4, 16), 1);
  238. #ifdef CONFIG_FSL_QSPI
  239. board_qspi_init();
  240. #endif
  241. #ifdef CONFIG_VIDEO_MXS
  242. setup_lcd();
  243. #endif
  244. return 0;
  245. }
  246. static bool is_reva(void)
  247. {
  248. return (nxp_board_rev() == 1);
  249. }
  250. int board_late_init(void)
  251. {
  252. #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  253. if (is_reva())
  254. env_set("board_rev", "REVA");
  255. #endif
  256. return 0;
  257. }
  258. int checkboard(void)
  259. {
  260. printf("Board: MX6SX SABRE SDB rev%c\n", nxp_board_rev_string());
  261. return 0;
  262. }
  263. #ifdef CONFIG_SPL_BUILD
  264. #include <linux/libfdt.h>
  265. #include <spl.h>
  266. #include <asm/arch/mx6-ddr.h>
  267. static struct fsl_esdhc_cfg usdhc_cfg[3] = {
  268. {USDHC2_BASE_ADDR, 0, 4},
  269. {USDHC3_BASE_ADDR},
  270. {USDHC4_BASE_ADDR},
  271. };
  272. #define USDHC3_CD_GPIO IMX_GPIO_NR(2, 10)
  273. #define USDHC3_PWR_GPIO IMX_GPIO_NR(2, 11)
  274. #define USDHC4_CD_GPIO IMX_GPIO_NR(6, 21)
  275. static iomux_v3_cfg_t const usdhc2_pads[] = {
  276. MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  277. MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  278. MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  279. MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  280. MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  281. MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  282. };
  283. static iomux_v3_cfg_t const usdhc3_pads[] = {
  284. MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  285. MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  286. MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  287. MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  288. MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  289. MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  290. MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  291. MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  292. MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  293. MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  294. /* CD pin */
  295. MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
  296. /* RST_B, used for power reset cycle */
  297. MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
  298. };
  299. static iomux_v3_cfg_t const usdhc4_pads[] = {
  300. MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  301. MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  302. MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  303. MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  304. MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  305. MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  306. MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
  307. };
  308. int board_mmc_init(bd_t *bis)
  309. {
  310. struct src *src_regs = (struct src *)SRC_BASE_ADDR;
  311. u32 val;
  312. u32 port;
  313. val = readl(&src_regs->sbmr1);
  314. if ((val & 0xc0) != 0x40) {
  315. printf("Not boot from USDHC!\n");
  316. return -EINVAL;
  317. }
  318. port = (val >> 11) & 0x3;
  319. printf("port %d\n", port);
  320. switch (port) {
  321. case 1:
  322. imx_iomux_v3_setup_multiple_pads(
  323. usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
  324. usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
  325. usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
  326. break;
  327. case 2:
  328. imx_iomux_v3_setup_multiple_pads(
  329. usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
  330. gpio_direction_input(USDHC3_CD_GPIO);
  331. gpio_direction_output(USDHC3_PWR_GPIO, 1);
  332. usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
  333. usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
  334. break;
  335. case 3:
  336. imx_iomux_v3_setup_multiple_pads(
  337. usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
  338. gpio_direction_input(USDHC4_CD_GPIO);
  339. usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
  340. usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
  341. break;
  342. }
  343. gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
  344. return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
  345. }
  346. int board_mmc_getcd(struct mmc *mmc)
  347. {
  348. struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
  349. int ret = 0;
  350. switch (cfg->esdhc_base) {
  351. case USDHC2_BASE_ADDR:
  352. ret = 1; /* Assume uSDHC2 is always present */
  353. break;
  354. case USDHC3_BASE_ADDR:
  355. ret = !gpio_get_value(USDHC3_CD_GPIO);
  356. break;
  357. case USDHC4_BASE_ADDR:
  358. ret = !gpio_get_value(USDHC4_CD_GPIO);
  359. break;
  360. }
  361. return ret;
  362. }
  363. const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
  364. .dram_dqm0 = 0x00000028,
  365. .dram_dqm1 = 0x00000028,
  366. .dram_dqm2 = 0x00000028,
  367. .dram_dqm3 = 0x00000028,
  368. .dram_ras = 0x00000020,
  369. .dram_cas = 0x00000020,
  370. .dram_odt0 = 0x00000020,
  371. .dram_odt1 = 0x00000020,
  372. .dram_sdba2 = 0x00000000,
  373. .dram_sdcke0 = 0x00003000,
  374. .dram_sdcke1 = 0x00003000,
  375. .dram_sdclk_0 = 0x00000030,
  376. .dram_sdqs0 = 0x00000028,
  377. .dram_sdqs1 = 0x00000028,
  378. .dram_sdqs2 = 0x00000028,
  379. .dram_sdqs3 = 0x00000028,
  380. .dram_reset = 0x00000020,
  381. };
  382. const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
  383. .grp_addds = 0x00000020,
  384. .grp_ddrmode_ctl = 0x00020000,
  385. .grp_ddrpke = 0x00000000,
  386. .grp_ddrmode = 0x00020000,
  387. .grp_b0ds = 0x00000028,
  388. .grp_b1ds = 0x00000028,
  389. .grp_ctlds = 0x00000020,
  390. .grp_ddr_type = 0x000c0000,
  391. .grp_b2ds = 0x00000028,
  392. .grp_b3ds = 0x00000028,
  393. };
  394. const struct mx6_mmdc_calibration mx6_mmcd_calib = {
  395. .p0_mpwldectrl0 = 0x00290025,
  396. .p0_mpwldectrl1 = 0x00220022,
  397. .p0_mpdgctrl0 = 0x41480144,
  398. .p0_mpdgctrl1 = 0x01340130,
  399. .p0_mprddlctl = 0x3C3E4244,
  400. .p0_mpwrdlctl = 0x34363638,
  401. };
  402. static struct mx6_ddr3_cfg mem_ddr = {
  403. .mem_speed = 1600,
  404. .density = 4,
  405. .width = 32,
  406. .banks = 8,
  407. .rowaddr = 15,
  408. .coladdr = 10,
  409. .pagesz = 2,
  410. .trcd = 1375,
  411. .trcmin = 4875,
  412. .trasmin = 3500,
  413. };
  414. static void ccgr_init(void)
  415. {
  416. struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
  417. writel(0xFFFFFFFF, &ccm->CCGR0);
  418. writel(0xFFFFFFFF, &ccm->CCGR1);
  419. writel(0xFFFFFFFF, &ccm->CCGR2);
  420. writel(0xFFFFFFFF, &ccm->CCGR3);
  421. writel(0xFFFFFFFF, &ccm->CCGR4);
  422. writel(0xFFFFFFFF, &ccm->CCGR5);
  423. writel(0xFFFFFFFF, &ccm->CCGR6);
  424. writel(0xFFFFFFFF, &ccm->CCGR7);
  425. }
  426. static void spl_dram_init(void)
  427. {
  428. struct mx6_ddr_sysinfo sysinfo = {
  429. .dsize = mem_ddr.width/32,
  430. .cs_density = 24,
  431. .ncs = 1,
  432. .cs1_mirror = 0,
  433. .rtt_wr = 2,
  434. .rtt_nom = 2, /* RTT_Nom = RZQ/2 */
  435. .walat = 1, /* Write additional latency */
  436. .ralat = 5, /* Read additional latency */
  437. .mif3_mode = 3, /* Command prediction working mode */
  438. .bi_on = 1, /* Bank interleaving enabled */
  439. .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
  440. .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
  441. .ddr_type = DDR_TYPE_DDR3,
  442. .refsel = 1, /* Refresh cycles at 32KHz */
  443. .refr = 7, /* 8 refresh commands per refresh cycle */
  444. };
  445. mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
  446. mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
  447. }
  448. void board_init_f(ulong dummy)
  449. {
  450. /* setup AIPS and disable watchdog */
  451. arch_cpu_init();
  452. ccgr_init();
  453. /* iomux and setup of i2c */
  454. board_early_init_f();
  455. /* setup GP timer */
  456. timer_init();
  457. /* UART clocks enabled and gd valid - init serial console */
  458. preloader_console_init();
  459. /* DDR initialization */
  460. spl_dram_init();
  461. /* Clear the BSS. */
  462. memset(__bss_start, 0, __bss_end - __bss_start);
  463. /* load/boot image from boot device */
  464. board_init_r(NULL, 0);
  465. }
  466. #endif