diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/rockchip/rk3399/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/rockchip/rk3399/romstage.c | 133 |
2 files changed, 0 insertions, 134 deletions
diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc index 3bfc05e956..6e7527893c 100644 --- a/src/soc/rockchip/rk3399/Makefile.inc +++ b/src/soc/rockchip/rk3399/Makefile.inc @@ -49,7 +49,6 @@ romstage-y += clock.c romstage-y += mmu_operations.c romstage-y += ../common/pwm.c romstage-y += timer.c -romstage-y += romstage.c romstage-y += tsadc.c romstage-y += usb.c romstage-y += gpio.c diff --git a/src/soc/rockchip/rk3399/romstage.c b/src/soc/rockchip/rk3399/romstage.c deleted file mode 100644 index ccf42b9b5f..0000000000 --- a/src/soc/rockchip/rk3399/romstage.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2016 Rockchip Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <arch/cache.h> -#include <arch/cpu.h> -#include <arch/exception.h> -#include <arch/io.h> -#include <arch/mmu.h> -#include <boardid.h> -#include <cbfs.h> -#include <console/console.h> -#include <delay.h> -#include <program_loading.h> -#include <romstage_handoff.h> -#include <soc/addressmap.h> -#include <soc/grf.h> -#include <soc/mmu_operations.h> -#include <soc/pwm.h> -#include <soc/tsadc.h> -#include <soc/sdram.h> -#include <symbols.h> -#include <soc/usb.h> - -static const uint64_t dram_size = - (uint64_t)min((uint64_t)CONFIG_DRAM_SIZE_MB * MiB, MAX_DRAM_ADDRESS); - -static void init_dvs_outputs(void) -{ - int duty_ns; - uint32_t i; - uint32_t id; - - write32(&rk3399_grf->iomux_pwm_0, IOMUX_PWM_0); /* GPU */ - write32(&rk3399_grf->iomux_pwm_1, IOMUX_PWM_1); /* Big */ - write32(&rk3399_pmugrf->iomux_pwm_2, IOMUX_PWM_2); /* Little */ - write32(&rk3399_pmugrf->iomux_pwm_3a, IOMUX_PWM_3_A); /* Centerlog */ - - /* - * Set up voltages for all DVS rails. - * - * LITTLE CPU: At the speed we're running at right now and on the - * early silicon, .9V is sane. If/when we run faster, let's bump this. - * - * CENTER LOGIC: There are some claims that this should simply always - * be .9 V. There are other claims that say that we need to adjust this - * dynamically depending on the memory frequency. Until this is sorted - * out, it appears that .9 V works for the 800 MHz. - * - * BIG CPU / GPU: These aren't used in coreboot. Init to .9V which is - * supposed to be a good default. - * - * Details: - * design_min = 0.8 - * design_max = 1.5 - * period = 3337 # 300 kHz - * volt = 1.1 - * # Intentionally round down (higher volt) to be safe. - * int((period / (design_max - design_min)) * (design_max - volt)) - * - * Apparently a period of 3333 is determined by EEs to be ideal for our - * board design / resistors / capacitors / regulators but due to - * clock dividers we actually get 3337. Solving, we get: - * period = 3337, volt = 1.1: 1906 - * period = 3337, volt = 1.0: 2383 - * period = 3337, volt = 0.9: 2860 - */ - duty_ns = 2860; /* 0.9v */ - - /* TODO: Clean all this up, implement proper pwm_regulator driver. */ - if (IS_ENABLED(CONFIG_BOARD_GOOGLE_KEVIN)) { - id = board_id(); - if (id <= 2) - duty_ns = 1906; /* 1.1v */ - else if (id == 3) - duty_ns = 2621; /* 0.95v */ - else if (id >= 6) { - /* GPU: 3337 * (12043 - 9000) / (12043 - 7984) = 2501 */ - pwm_init(0, 3337, 2501); - /* BIG: 3337 * (12837 - 9000) / (12837 - 7985) = 2638 */ - pwm_init(1, 3337, 2638); - /* LIT: 3337 * (12807 - 9000) / (12807 - 8009) = 2647 */ - pwm_init(2, 3337, 2647); - /* CTR: 3337 * (10507 - 9500) / (10507 - 7996) = 1338 */ - pwm_init(3, 3337, 1338); - return; - } - } - - for (i = 0; i < 4; i++) - pwm_init(i, 3337, duty_ns); -} - -static void prepare_usb(void) -{ - /* - * Do dwc3 core soft reset and phy reset. Kick these resets - * off early so they get at least 100ms to settle. - */ - reset_usb_otg0(); - reset_usb_otg1(); -} - -void main(void) -{ - console_init(); - tsadc_init(TSHUT_POL_HIGH); - exception_init(); - - /* Init DVS to conservative values. */ - init_dvs_outputs(); - - prepare_usb(); - - sdram_init(get_sdram_config()); - - mmu_config_range((void *)0, (uintptr_t)dram_size, CACHED_MEM); - mmu_config_range(_dma_coherent, _dma_coherent_size, UNCACHED_MEM); - cbmem_initialize_empty(); - run_ramstage(); -} |