From 6fba6e0490584036fe1210986d6db439b22cb03e Mon Sep 17 00:00:00 2001 From: Tony Xie Date: Fri, 15 Jan 2016 17:17:32 +0800 Subject: Support for Rockchip's family SoCs This patch adds to support the RK3368 and RK3399 SoCs. RK3368/RK3399 is one of the Rockchip family SoCs, which is an multi-cores ARM SoCs. This patch adds support to boot the Trusted Firmware on RK3368/RK3399 SoCs, and adds support to boot secondary CPUs, enter/exit core power states for all CPUs in the slow/fast clusters. This is the initial version for rockchip SoCs.(RK3368/RK3399 and next SoCs) * Support arm gicv2 & gicv3. * Boot up multi-cores CPU. * Add generic CPU helper functions. * Support suspend/resume. * Add system_off & system_reset implementation. * Add delay timer platform implementation. * Support the new porting interface for the PSCI implementation. Change-Id: I704bb3532d65e8c70dbd99b512c5e6e440ea6f43 Signed-off-by: Tony Xie Signed-off-by: Caesar Wang Signed-off-by: Shengfei xu --- plat/rockchip/common/plat_delay_timer.c | 54 +++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 plat/rockchip/common/plat_delay_timer.c (limited to 'plat/rockchip/common/plat_delay_timer.c') diff --git a/plat/rockchip/common/plat_delay_timer.c b/plat/rockchip/common/plat_delay_timer.c new file mode 100644 index 00000000..797ce05a --- /dev/null +++ b/plat/rockchip/common/plat_delay_timer.c @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include + +static uint32_t plat_get_timer_value(void) +{ + /* + * Generic delay timer implementation expects the timer to be a down + * counter. We apply bitwise NOT operator to the tick values returned + * by read_cntpct_el0() to simulate the down counter. + */ + return (uint32_t)(~read_cntpct_el0()); +} + +static const timer_ops_t plat_timer_ops = { + .get_timer_value = plat_get_timer_value, + .clk_mult = 1, + .clk_div = SYS_COUNTER_FREQ_IN_MHZ, +}; + +void plat_delay_timer_init(void) +{ + timer_init(&plat_timer_ops); +} -- cgit