1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2014 Samsung Electronics
4 * Przemyslaw Marczak <p.marczak@samsung.com>
9 #include <asm/arch/pinmux.h>
10 #include <asm/arch/power.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/gpio.h>
14 #include <asm/arch/cpu.h>
17 #include <power/pmic.h>
18 #include <power/regulator.h>
19 #include <power/max77686_pmic.h>
23 #include <usb/dwc2_udc.h>
24 #include <samsung/misc.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 #ifdef CONFIG_BOARD_TYPES
30 /* Odroid board types */
37 void set_board_type(void)
39 /* Set GPA1 pin 1 to HI - enable XCL205 output */
40 writel(XCL205_EN_GPIO_CON_CFG, XCL205_EN_GPIO_CON);
41 writel(XCL205_EN_GPIO_DAT_CFG, XCL205_EN_GPIO_CON + 0x4);
42 writel(XCL205_EN_GPIO_PUD_CFG, XCL205_EN_GPIO_CON + 0x8);
43 writel(XCL205_EN_GPIO_DRV_CFG, XCL205_EN_GPIO_CON + 0xc);
45 /* Set GPC1 pin 2 to IN - check XCL205 output state */
46 writel(XCL205_STATE_GPIO_CON_CFG, XCL205_STATE_GPIO_CON);
47 writel(XCL205_STATE_GPIO_PUD_CFG, XCL205_STATE_GPIO_CON + 0x8);
49 /* XCL205 - needs some latch time */
52 /* Check GPC1 pin2 - LED supplied by XCL205 - X2 only */
53 if (readl(XCL205_STATE_GPIO_DAT) & (1 << XCL205_STATE_GPIO_PIN))
54 gd->board_type = ODROID_TYPE_X2;
56 gd->board_type = ODROID_TYPE_U3;
59 void set_board_revision(void)
62 * Revision already set by set_board_type() because it can be
67 const char *get_board_type(void)
69 const char *board_type[] = {"u3", "x2"};
71 return board_type[gd->board_type];
75 #ifdef CONFIG_SET_DFU_ALT_INFO
76 char *get_dfu_alt_system(char *interface, char *devstr)
78 return env_get("dfu_alt_system");
81 char *get_dfu_alt_boot(char *interface, char *devstr)
87 dev_num = simple_strtoul(devstr, NULL, 10);
89 mmc = find_mmc_device(dev_num);
96 alt_boot = IS_SD(mmc) ? CONFIG_DFU_ALT_BOOT_SD :
97 CONFIG_DFU_ALT_BOOT_EMMC;
103 static void board_clock_init(void)
105 unsigned int set, clr, clr_src_cpu, clr_pll_con0, clr_src_dmc;
106 struct exynos4x12_clock *clk = (struct exynos4x12_clock *)
107 samsung_get_base_clock();
110 * CMU_CPU clocks src to MPLL
112 * MUX_APLL_SEL: FIN_PLL ; FOUT_APLL
113 * MUX_CORE_SEL: MOUT_APLL ; SCLK_MPLL
114 * MUX_HPM_SEL: MOUT_APLL ; SCLK_MPLL_USER_C
115 * MUX_MPLL_USER_SEL_C: FIN_PLL ; SCLK_MPLL
117 clr_src_cpu = MUX_APLL_SEL(1) | MUX_CORE_SEL(1) |
118 MUX_HPM_SEL(1) | MUX_MPLL_USER_SEL_C(1);
119 set = MUX_APLL_SEL(0) | MUX_CORE_SEL(1) | MUX_HPM_SEL(1) |
120 MUX_MPLL_USER_SEL_C(1);
122 clrsetbits_le32(&clk->src_cpu, clr_src_cpu, set);
124 /* Wait for mux change */
125 while (readl(&clk->mux_stat_cpu) & MUX_STAT_CPU_CHANGING)
128 /* Set APLL to 1000MHz */
129 clr_pll_con0 = SDIV(7) | PDIV(63) | MDIV(1023) | FSEL(1);
130 set = SDIV(0) | PDIV(3) | MDIV(125) | FSEL(1);
132 clrsetbits_le32(&clk->apll_con0, clr_pll_con0, set);
134 /* Wait for PLL to be locked */
135 while (!(readl(&clk->apll_con0) & PLL_LOCKED_BIT))
138 /* Set CMU_CPU clocks src to APLL */
139 set = MUX_APLL_SEL(1) | MUX_CORE_SEL(0) | MUX_HPM_SEL(0) |
140 MUX_MPLL_USER_SEL_C(1);
141 clrsetbits_le32(&clk->src_cpu, clr_src_cpu, set);
143 /* Wait for mux change */
144 while (readl(&clk->mux_stat_cpu) & MUX_STAT_CPU_CHANGING)
147 set = CORE_RATIO(0) | COREM0_RATIO(2) | COREM1_RATIO(5) |
148 PERIPH_RATIO(0) | ATB_RATIO(4) | PCLK_DBG_RATIO(1) |
149 APLL_RATIO(0) | CORE2_RATIO(0);
151 * Set dividers for MOUTcore = 1000 MHz
152 * coreout = MOUT / (ratio + 1) = 1000 MHz (0)
153 * corem0 = armclk / (ratio + 1) = 333 MHz (2)
154 * corem1 = armclk / (ratio + 1) = 166 MHz (5)
155 * periph = armclk / (ratio + 1) = 1000 MHz (0)
156 * atbout = MOUT / (ratio + 1) = 200 MHz (4)
157 * pclkdbgout = atbout / (ratio + 1) = 100 MHz (1)
158 * sclkapll = MOUTapll / (ratio + 1) = 1000 MHz (0)
159 * core2out = core_out / (ratio + 1) = 1000 MHz (0) (armclk)
161 clr = CORE_RATIO(7) | COREM0_RATIO(7) | COREM1_RATIO(7) |
162 PERIPH_RATIO(7) | ATB_RATIO(7) | PCLK_DBG_RATIO(7) |
163 APLL_RATIO(7) | CORE2_RATIO(7);
165 clrsetbits_le32(&clk->div_cpu0, clr, set);
167 /* Wait for divider ready status */
168 while (readl(&clk->div_stat_cpu0) & DIV_STAT_CPU0_CHANGING)
172 * For MOUThpm = 1000 MHz (MOUTapll)
173 * doutcopy = MOUThpm / (ratio + 1) = 200 (4)
174 * sclkhpm = doutcopy / (ratio + 1) = 200 (4)
175 * cores_out = armclk / (ratio + 1) = 200 (4)
177 clr = COPY_RATIO(7) | HPM_RATIO(7) | CORES_RATIO(7);
178 set = COPY_RATIO(4) | HPM_RATIO(4) | CORES_RATIO(4);
180 clrsetbits_le32(&clk->div_cpu1, clr, set);
182 /* Wait for divider ready status */
183 while (readl(&clk->div_stat_cpu1) & DIV_STAT_CPU1_CHANGING)
187 * Set CMU_DMC clocks src to APLL
189 * MUX_C2C_SEL: SCLKMPLL ; SCLKAPLL
190 * MUX_DMC_BUS_SEL: SCLKMPLL ; SCLKAPLL
191 * MUX_DPHY_SEL: SCLKMPLL ; SCLKAPLL
192 * MUX_MPLL_SEL: FINPLL ; MOUT_MPLL_FOUT
193 * MUX_PWI_SEL: 0110 (MPLL); 0111 (EPLL); 1000 (VPLL); 0(XXTI)
194 * MUX_G2D_ACP0_SEL: SCLKMPLL ; SCLKAPLL
195 * MUX_G2D_ACP1_SEL: SCLKEPLL ; SCLKVPLL
196 * MUX_G2D_ACP_SEL: OUT_ACP0 ; OUT_ACP1
198 clr_src_dmc = MUX_C2C_SEL(1) | MUX_DMC_BUS_SEL(1) |
199 MUX_DPHY_SEL(1) | MUX_MPLL_SEL(1) |
200 MUX_PWI_SEL(15) | MUX_G2D_ACP0_SEL(1) |
201 MUX_G2D_ACP1_SEL(1) | MUX_G2D_ACP_SEL(1);
202 set = MUX_C2C_SEL(1) | MUX_DMC_BUS_SEL(1) | MUX_DPHY_SEL(1) |
203 MUX_MPLL_SEL(0) | MUX_PWI_SEL(0) | MUX_G2D_ACP0_SEL(1) |
204 MUX_G2D_ACP1_SEL(1) | MUX_G2D_ACP_SEL(1);
206 clrsetbits_le32(&clk->src_dmc, clr_src_dmc, set);
208 /* Wait for mux change */
209 while (readl(&clk->mux_stat_dmc) & MUX_STAT_DMC_CHANGING)
212 /* Set MPLL to 800MHz */
213 set = SDIV(0) | PDIV(3) | MDIV(100) | FSEL(0) | PLL_ENABLE(1);
215 clrsetbits_le32(&clk->mpll_con0, clr_pll_con0, set);
217 /* Wait for PLL to be locked */
218 while (!(readl(&clk->mpll_con0) & PLL_LOCKED_BIT))
221 /* Switch back CMU_DMC mux */
222 set = MUX_C2C_SEL(0) | MUX_DMC_BUS_SEL(0) | MUX_DPHY_SEL(0) |
223 MUX_MPLL_SEL(1) | MUX_PWI_SEL(8) | MUX_G2D_ACP0_SEL(0) |
224 MUX_G2D_ACP1_SEL(0) | MUX_G2D_ACP_SEL(0);
226 clrsetbits_le32(&clk->src_dmc, clr_src_dmc, set);
228 /* Wait for mux change */
229 while (readl(&clk->mux_stat_dmc) & MUX_STAT_DMC_CHANGING)
233 clr = ACP_RATIO(7) | ACP_PCLK_RATIO(7) | DPHY_RATIO(7) |
234 DMC_RATIO(7) | DMCD_RATIO(7) | DMCP_RATIO(7);
240 * aclk_acp = MOUTdmc / (ratio + 1) = 200 (3)
241 * pclk_acp = aclk_acp / (ratio + 1) = 100 (1)
242 * sclk_dphy = MOUTdphy / (ratio + 1) = 400 (1)
243 * sclk_dmc = MOUTdmc / (ratio + 1) = 400 (1)
244 * aclk_dmcd = sclk_dmc / (ratio + 1) = 200 (1)
245 * aclk_dmcp = aclk_dmcd / (ratio + 1) = 100 (1)
247 set = ACP_RATIO(3) | ACP_PCLK_RATIO(1) | DPHY_RATIO(1) |
248 DMC_RATIO(1) | DMCD_RATIO(1) | DMCP_RATIO(1);
250 clrsetbits_le32(&clk->div_dmc0, clr, set);
252 /* Wait for divider ready status */
253 while (readl(&clk->div_stat_dmc0) & DIV_STAT_DMC0_CHANGING)
257 clr = G2D_ACP_RATIO(15) | C2C_RATIO(7) | PWI_RATIO(15) |
258 C2C_ACLK_RATIO(7) | DVSEM_RATIO(127) | DPM_RATIO(127);
265 * sclk_g2d_acp = MOUTg2d / (ratio + 1) = 200 (3)
266 * sclk_c2c = MOUTc2c / (ratio + 1) = 400 (1)
267 * aclk_c2c = sclk_c2c / (ratio + 1) = 200 (1)
268 * sclk_pwi = MOUTpwi / (ratio + 1) = 18 (5)
270 set = G2D_ACP_RATIO(3) | C2C_RATIO(1) | PWI_RATIO(5) |
271 C2C_ACLK_RATIO(1) | DVSEM_RATIO(1) | DPM_RATIO(1);
273 clrsetbits_le32(&clk->div_dmc1, clr, set);
275 /* Wait for divider ready status */
276 while (readl(&clk->div_stat_dmc1) & DIV_STAT_DMC1_CHANGING)
280 clr = UART0_SEL(15) | UART1_SEL(15) | UART2_SEL(15) |
281 UART3_SEL(15) | UART4_SEL(15);
283 * Set CLK_SRC_PERIL0 clocks src to MPLL
284 * src values: 0(XXTI); 1(XusbXTI); 2(SCLK_HDMI24M); 3(SCLK_USBPHY0);
285 * 5(SCLK_HDMIPHY); 6(SCLK_MPLL_USER_T); 7(SCLK_EPLL);
288 * Set all to SCLK_MPLL_USER_T
290 set = UART0_SEL(6) | UART1_SEL(6) | UART2_SEL(6) | UART3_SEL(6) |
293 clrsetbits_le32(&clk->src_peril0, clr, set);
296 clr = UART0_RATIO(15) | UART1_RATIO(15) | UART2_RATIO(15) |
297 UART3_RATIO(15) | UART4_RATIO(15);
299 * For MOUTuart0-4: 800MHz
301 * SCLK_UARTx = MOUTuartX / (ratio + 1) = 100 (7)
303 set = UART0_RATIO(7) | UART1_RATIO(7) | UART2_RATIO(7) |
304 UART3_RATIO(7) | UART4_RATIO(7);
306 clrsetbits_le32(&clk->div_peril0, clr, set);
308 while (readl(&clk->div_stat_peril0) & DIV_STAT_PERIL0_CHANGING)
312 clr = MMC0_RATIO(15) | MMC0_PRE_RATIO(255) | MMC1_RATIO(15) |
315 * For MOUTmmc0-3 = 800 MHz (MPLL)
317 * DOUTmmc1 = MOUTmmc1 / (ratio + 1) = 100 (7)
318 * sclk_mmc1 = DOUTmmc1 / (ratio + 1) = 50 (1)
319 * DOUTmmc0 = MOUTmmc0 / (ratio + 1) = 100 (7)
320 * sclk_mmc0 = DOUTmmc0 / (ratio + 1) = 50 (1)
322 set = MMC0_RATIO(7) | MMC0_PRE_RATIO(1) | MMC1_RATIO(7) |
325 clrsetbits_le32(&clk->div_fsys1, clr, set);
327 /* Wait for divider ready status */
328 while (readl(&clk->div_stat_fsys1) & DIV_STAT_FSYS1_CHANGING)
332 clr = MMC2_RATIO(15) | MMC2_PRE_RATIO(255) | MMC3_RATIO(15) |
335 * For MOUTmmc0-3 = 800 MHz (MPLL)
337 * DOUTmmc3 = MOUTmmc3 / (ratio + 1) = 100 (7)
338 * sclk_mmc3 = DOUTmmc3 / (ratio + 1) = 50 (1)
339 * DOUTmmc2 = MOUTmmc2 / (ratio + 1) = 100 (7)
340 * sclk_mmc2 = DOUTmmc2 / (ratio + 1) = 50 (1)
342 set = MMC2_RATIO(7) | MMC2_PRE_RATIO(1) | MMC3_RATIO(7) |
345 clrsetbits_le32(&clk->div_fsys2, clr, set);
347 /* Wait for divider ready status */
348 while (readl(&clk->div_stat_fsys2) & DIV_STAT_FSYS2_CHANGING)
352 clr = MMC4_RATIO(15) | MMC4_PRE_RATIO(255);
354 * For MOUTmmc4 = 800 MHz (MPLL)
356 * DOUTmmc4 = MOUTmmc4 / (ratio + 1) = 100 (7)
357 * sclk_mmc4 = DOUTmmc4 / (ratio + 1) = 100 (0)
359 set = MMC4_RATIO(7) | MMC4_PRE_RATIO(0);
361 clrsetbits_le32(&clk->div_fsys3, clr, set);
363 /* Wait for divider ready status */
364 while (readl(&clk->div_stat_fsys3) & DIV_STAT_FSYS3_CHANGING)
370 static void board_gpio_init(void)
373 gpio_request(EXYNOS4X12_GPIO_K12, "eMMC Reset");
375 gpio_cfg_pin(EXYNOS4X12_GPIO_K12, S5P_GPIO_FUNC(0x1));
376 gpio_set_pull(EXYNOS4X12_GPIO_K12, S5P_GPIO_PULL_NONE);
377 gpio_set_drv(EXYNOS4X12_GPIO_K12, S5P_GPIO_DRV_4X);
379 /* Enable FAN (Odroid U3) */
380 gpio_request(EXYNOS4X12_GPIO_D00, "FAN Control");
382 gpio_set_pull(EXYNOS4X12_GPIO_D00, S5P_GPIO_PULL_UP);
383 gpio_set_drv(EXYNOS4X12_GPIO_D00, S5P_GPIO_DRV_4X);
384 gpio_direction_output(EXYNOS4X12_GPIO_D00, 1);
386 /* OTG Vbus output (Odroid U3+) */
387 gpio_request(EXYNOS4X12_GPIO_L20, "OTG Vbus");
389 gpio_set_pull(EXYNOS4X12_GPIO_L20, S5P_GPIO_PULL_NONE);
390 gpio_set_drv(EXYNOS4X12_GPIO_L20, S5P_GPIO_DRV_4X);
391 gpio_direction_output(EXYNOS4X12_GPIO_L20, 0);
393 /* OTG INT (Odroid U3+) */
394 gpio_request(EXYNOS4X12_GPIO_X31, "OTG INT");
396 gpio_set_pull(EXYNOS4X12_GPIO_X31, S5P_GPIO_PULL_UP);
397 gpio_set_drv(EXYNOS4X12_GPIO_X31, S5P_GPIO_DRV_4X);
398 gpio_direction_input(EXYNOS4X12_GPIO_X31);
400 /* Blue LED (Odroid X2/U2/U3) */
401 gpio_request(EXYNOS4X12_GPIO_C10, "Blue LED");
403 gpio_direction_output(EXYNOS4X12_GPIO_C10, 0);
405 #ifdef CONFIG_CMD_USB
406 /* USB3503A Reference frequency */
407 gpio_request(EXYNOS4X12_GPIO_X30, "USB3503A RefFreq");
409 /* USB3503A Connect */
410 gpio_request(EXYNOS4X12_GPIO_X34, "USB3503A Connect");
413 gpio_request(EXYNOS4X12_GPIO_X35, "USB3503A Reset");
417 int exynos_early_init_f(void)
424 int exynos_init(void)
431 int exynos_power_init(void)
433 const char *mmc_regulators[] = {
440 if (regulator_list_autoset(mmc_regulators, NULL, true))
441 pr_err("Unable to init all mmc regulators\n");
446 #ifdef CONFIG_USB_GADGET
447 static int s5pc210_phy_control(int on)
452 ret = regulator_get_by_platname("VDD_UOTG_3.0V", &dev);
454 pr_err("Regulator get error: %d\n", ret);
459 return regulator_set_mode(dev, OPMODE_ON);
461 return regulator_set_mode(dev, OPMODE_LPM);
464 struct dwc2_plat_otg_data s5pc210_otg_data = {
465 .phy_control = s5pc210_phy_control,
466 .regs_phy = EXYNOS4X12_USBPHY_BASE,
467 .regs_otg = EXYNOS4X12_USBOTG_BASE,
468 .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL,
469 .usb_flags = PHY0_SLEEP,
473 #if defined(CONFIG_USB_GADGET) || defined(CONFIG_CMD_USB)
475 static void set_usb3503_ref_clk(void)
477 #ifdef CONFIG_BOARD_TYPES
479 * gpx3-0 chooses primary (low) or secondary (high) reference clock
480 * frequencies table. The choice of clock is done through hard-wired
482 * The Odroid Us have reference clock at 24 MHz (00 entry from secondary
483 * table) and Odroid Xs have it at 26 MHz (01 entry from primary table).
485 if (gd->board_type == ODROID_TYPE_U3)
486 gpio_direction_output(EXYNOS4X12_GPIO_X30, 0);
488 gpio_direction_output(EXYNOS4X12_GPIO_X30, 1);
490 /* Choose Odroid Xs frequency without board types */
491 gpio_direction_output(EXYNOS4X12_GPIO_X30, 1);
492 #endif /* CONFIG_BOARD_TYPES */
495 int board_usb_init(int index, enum usb_init_type init)
497 #ifdef CONFIG_CMD_USB
501 set_usb3503_ref_clk();
503 /* Disconnect, Reset, Connect */
504 gpio_direction_output(EXYNOS4X12_GPIO_X34, 0);
505 gpio_direction_output(EXYNOS4X12_GPIO_X35, 0);
506 gpio_direction_output(EXYNOS4X12_GPIO_X35, 1);
507 gpio_direction_output(EXYNOS4X12_GPIO_X34, 1);
509 /* Power off and on BUCK8 for LAN9730 */
510 debug("LAN9730 - Turning power buck 8 OFF and ON.\n");
512 ret = regulator_get_by_platname("VCC_P3V3_2.85V", &dev);
514 pr_err("Regulator get error: %d\n", ret);
518 ret = regulator_set_enable(dev, true);
520 pr_err("Regulator %s enable setting error: %d\n", dev->name, ret);
524 ret = regulator_set_value(dev, 750000);
526 pr_err("Regulator %s value setting error: %d\n", dev->name, ret);
530 ret = regulator_set_value(dev, 3300000);
532 pr_err("Regulator %s value setting error: %d\n", dev->name, ret);
536 debug("USB_udc_probe\n");
537 return dwc2_udc_probe(&s5pc210_otg_data);