ab69984601
Add support: 1)Support driver rktimer 2)Support driver rkserial BUG=chrome-os-partner:29778 TEST=emerge-veyron libpayload Original-Change-Id: I2cccedf3b62883dd372842a7972e93f2ebbfb282 Original-Signed-off-by: huang lin <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/206184 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Tested-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Julius Werner <jwerner@chromium.org> (cherry picked from commit 387450d7c36b201bd177d46eb9f1d280fc043aab) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Ia6b7a8ee2439a6f2bf7577df822d3f4f3a1e441c Reviewed-on: http://review.coreboot.org/8127 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Rockchip Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <arch/io.h>
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#include <libpayload.h>
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#include <stdint.h>
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struct rk_timer {
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u32 timer_load_count0;
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u32 timer_load_count1;
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u32 timer_curr_value0;
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u32 timer_curr_value1;
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u32 timer_ctrl_reg;
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u32 timer_int_status;
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};
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uint64_t timer_hz(void)
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{
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return 24000000;
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}
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uint64_t timer_raw_value(void)
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{
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uint64_t upper;
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uint64_t lower;
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struct rk_timer *rk_timer;
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rk_timer = (struct rk_timer *) CONFIG_LP_TIMER_RK_ADDRESS;
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lower = (uint64_t) rk_timer->timer_curr_value0;
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upper = (uint64_t) rk_timer->timer_curr_value1;
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return (upper << 32) | lower;
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}
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