rockchip/rk3399: Move romstage.c to mainboard/gru

The romstage.c is more board related than soc specific, like
setting the pwm regulators, so moving it to mainboard/gru.

BRANCH=none
BUG=chrome-os-partner:54819
TEST=Bootup on kevin board

Change-Id: I83c6cde9f451480e47e2b4b549cedf65b345134c
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 35feeb07131a6a9de4adde035236987391833474
Original-Change-Id: If2bf245302eb4fb20bb089c1b3ffa03909722443
Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/375398
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16367
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

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();
-}