From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c | 63 ++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c (limited to 'plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c') diff --git a/plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c b/plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c new file mode 100644 index 0000000..dd8bf4e --- /dev/null +++ b/plat/mediatek/mt8192/drivers/dcm/mtk_dcm.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2020, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include +#include + +static void dcm_armcore(bool mode) +{ + dcm_mp_cpusys_top_bus_pll_div_dcm(mode); + dcm_mp_cpusys_top_cpu_pll_div_0_dcm(mode); + dcm_mp_cpusys_top_cpu_pll_div_1_dcm(mode); +} + +static void dcm_mcusys(bool on) +{ + dcm_mp_cpusys_top_adb_dcm(on); + dcm_mp_cpusys_top_apb_dcm(on); + dcm_mp_cpusys_top_cpubiu_dcm(on); + dcm_mp_cpusys_top_misc_dcm(on); + dcm_mp_cpusys_top_mp0_qdcm(on); + dcm_cpccfg_reg_emi_wfifo(on); + dcm_mp_cpusys_top_last_cor_idle_dcm(on); +} + +static void dcm_stall(bool on) +{ + dcm_mp_cpusys_top_core_stall_dcm(on); + dcm_mp_cpusys_top_fcm_stall_dcm(on); +} + +static bool check_dcm_state(void) +{ + bool ret = true; + + ret &= dcm_mp_cpusys_top_bus_pll_div_dcm_is_on(); + ret &= dcm_mp_cpusys_top_cpu_pll_div_0_dcm_is_on(); + ret &= dcm_mp_cpusys_top_cpu_pll_div_1_dcm_is_on(); + + ret &= dcm_mp_cpusys_top_adb_dcm_is_on(); + ret &= dcm_mp_cpusys_top_apb_dcm_is_on(); + ret &= dcm_mp_cpusys_top_cpubiu_dcm_is_on(); + ret &= dcm_mp_cpusys_top_misc_dcm_is_on(); + ret &= dcm_mp_cpusys_top_mp0_qdcm_is_on(); + ret &= dcm_cpccfg_reg_emi_wfifo_is_on(); + ret &= dcm_mp_cpusys_top_last_cor_idle_dcm_is_on(); + + ret &= dcm_mp_cpusys_top_core_stall_dcm_is_on(); + ret &= dcm_mp_cpusys_top_fcm_stall_dcm_is_on(); + + return ret; +} + +bool dcm_set_default(void) +{ + dcm_armcore(true); + dcm_mcusys(true); + dcm_stall(true); + + return check_dcm_state(); +} -- cgit v1.2.3