From b262c726252dc870b373c1e2736699ce172788b1 Mon Sep 17 00:00:00 2001 From: Katie Roberts-Hoffman Date: Thu, 23 Oct 2014 19:14:30 -0700 Subject: Add google/veyron_jerry board This is essentially a copy of veyron_pinky for now. BUG=chrome-os-partner:33269 TEST=build and boot Change-Id: I151c82f54ece4620953d0db5aedf027a3293926f Signed-off-by: Patrick Georgi Original-Commit-Id: 267611f2354be4384de3f05d2459a4e421ee6b4f Original-Change-Id: I0d473361e0850ee3b11da5a809f8396826ccdad6 Original-Signed-off-by: Katie Roberts-Hoffman Original-Reviewed-on: https://chromium-review.googlesource.com/225301 Reviewed-on: http://review.coreboot.org/9544 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/veyron_jerry/romstage.c | 126 +++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 src/mainboard/google/veyron_jerry/romstage.c (limited to 'src/mainboard/google/veyron_jerry/romstage.c') diff --git a/src/mainboard/google/veyron_jerry/romstage.c b/src/mainboard/google/veyron_jerry/romstage.c new file mode 100644 index 0000000000..b050228b5f --- /dev/null +++ b/src/mainboard/google/veyron_jerry/romstage.c @@ -0,0 +1,126 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "timer.h" + +static void regulate_vdd_log(unsigned int mv) +{ + unsigned int duty_ns; + const u32 period_ns = 2000; /* pwm period: 2000ns */ + const u32 max_regulator_mv = 1350; /* 1.35V */ + const u32 min_regulator_mv = 870; /* 0.87V */ + + writel(IOMUX_PWM1, &rk3288_grf->iomux_pwm1); + + assert((mv >= min_regulator_mv) && (mv <= max_regulator_mv)); + + duty_ns = (max_regulator_mv - mv) * period_ns / + (max_regulator_mv - min_regulator_mv); + + pwm_init(1, period_ns, duty_ns); +} + +static void configure_l2ctlr(void) +{ + uint32_t l2ctlr; + + l2ctlr = read_l2ctlr(); + l2ctlr &= 0xfffc0000; /* clear bit0~bit17 */ + + /* + * Data RAM write latency: 2 cycles + * Data RAM read latency: 2 cycles + * Data RAM setup latency: 1 cycle + * Tag RAM write latency: 1 cycle + * Tag RAM read latency: 1 cycle + * Tag RAM setup latency: 1 cycle + */ + l2ctlr |= (1 << 3 | 1 << 0); + write_l2ctlr(l2ctlr); +} + +void main(void) +{ +#if CONFIG_COLLECT_TIMESTAMPS + uint64_t start_romstage_time; + uint64_t before_dram_time; + uint64_t after_dram_time; + uint64_t base_time = timestamp_get(); + start_romstage_time = timestamp_get(); +#endif + + console_init(); + configure_l2ctlr(); + tsadc_init(); + + /* vdd_log 1200mv is enough for ddr run 666Mhz */ + regulate_vdd_log(1200); +#if CONFIG_COLLECT_TIMESTAMPS + before_dram_time = timestamp_get(); +#endif + sdram_init(get_sdram_config()); +#if CONFIG_COLLECT_TIMESTAMPS + after_dram_time = timestamp_get(); +#endif + + /* Now that DRAM is up, add mappings for it and DMA coherency buffer. */ + mmu_config_range((uintptr_t)_dram/MiB, + CONFIG_DRAM_SIZE_MB, DCACHE_WRITEBACK); + mmu_config_range((uintptr_t)_dma_coherent/MiB, + _dma_coherent_size/MiB, DCACHE_OFF); + + cbmem_initialize_empty(); + +#if CONFIG_COLLECT_TIMESTAMPS + timestamp_init(base_time); + timestamp_add(TS_START_ROMSTAGE, start_romstage_time); + timestamp_add(TS_BEFORE_INITRAM, before_dram_time); + timestamp_add(TS_AFTER_INITRAM, after_dram_time); + timestamp_add_now(TS_END_ROMSTAGE); +#endif + +#if IS_ENABLED(CONFIG_VBOOT_VERIFY_FIRMWARE) + void *entry = vboot2_load_ramstage(); + if (entry != NULL) + stage_exit(entry); +#endif + + run_ramstage(); +} -- cgit v1.2.3