1 /* 2 * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 #include <common.h> 7 #include <dm.h> 8 #include <dm/pinctrl.h> 9 #include <dm/uclass-internal.h> 10 #include <asm/arch/periph.h> 11 #include <power/regulator.h> 12 13 DECLARE_GLOBAL_DATA_PTR; 14 15 int board_init(void) 16 { 17 struct udevice *pinctrl, *regulator; 18 int ret; 19 20 /* 21 * The PWM does not have decicated interrupt number in dts and can 22 * not get periph_id by pinctrl framework, so let's init them here. 23 * The PWM2 and PWM3 are for pwm regulators. 24 */ 25 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); 26 if (ret) { 27 debug("%s: Cannot find pinctrl device\n", __func__); 28 goto out; 29 } 30 31 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2); 32 if (ret) { 33 debug("%s PWM2 pinctrl init fail!\n", __func__); 34 goto out; 35 } 36 37 /* rk3399 need to init vdd_center to get the correct output voltage */ 38 ret = regulator_get_by_platname("vdd_center", ®ulator); 39 if (ret) 40 debug("%s: Cannot get vdd_center regulator\n", __func__); 41 42 ret = regulator_get_by_platname("vcc5v0_host", ®ulator); 43 if (ret) { 44 debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret); 45 goto out; 46 } 47 48 ret = regulator_set_enable(regulator, true); 49 if (ret) { 50 debug("%s vcc5v0-host-en set fail!\n", __func__); 51 goto out; 52 } 53 54 out: 55 return 0; 56 } 57 58 int dram_init(void) 59 { 60 gd->ram_size = 0x80000000; 61 return 0; 62 } 63 64 int dram_init_banksize(void) 65 { 66 /* Reserve 0x200000 for ATF bl31 */ 67 gd->bd->bi_dram[0].start = 0x200000; 68 gd->bd->bi_dram[0].size = 0x7e000000; 69 70 return 0; 71 } 72