From 362a73409103ae076172ea58f3f1c1a8fbdc6b00 Mon Sep 17 00:00:00 2001 From: Tristan Shieh Date: Wed, 6 Jun 2018 14:03:22 +0800 Subject: mediatek: Move uart, timer and cbmem code to a common directory. This patch moves uart, timer and cbmem code which can be reused into a common directory under soc/mediatek. BUG=b:80501386 BRANCH=none TEST=the refactored code works fine on the new platform (with the rest of the patches applied) and Elm platform Change-Id: I5210149b324947ee90f1a481b42f0e2e1f7cfc25 Signed-off-by: Tristan Shieh Reviewed-on: https://review.coreboot.org/26658 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi Reviewed-by: Hung-Te Lin --- src/soc/mediatek/common/include/soc/timer.h | 50 +++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 src/soc/mediatek/common/include/soc/timer.h (limited to 'src/soc/mediatek/common/include') diff --git a/src/soc/mediatek/common/include/soc/timer.h b/src/soc/mediatek/common/include/soc/timer.h new file mode 100644 index 0000000000..babcbba561 --- /dev/null +++ b/src/soc/mediatek/common/include/soc/timer.h @@ -0,0 +1,50 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek 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. + */ + +#ifndef SOC_MEDIATEK_COMMON_TIMER_H +#define SOC_MEDIATEK_COMMON_TIMER_H + +#include +#include + +#define GPT4_MHZ 13 + +struct mtk_gpt_regs { + u32 reserved[16]; + u32 gpt4_con; + u32 gpt4_clk; + u32 gpt4_cnt; +}; + +check_member(mtk_gpt_regs, gpt4_con, 0x0040); +check_member(mtk_gpt_regs, gpt4_clk, 0x0044); +check_member(mtk_gpt_regs, gpt4_cnt, 0x0048); + +enum { + GPT_CON_EN = 0x01, + GPT_CON_CLR = 0x02, + GPT_MODE_FREERUN = 0x30, + GPT_SYS_CLK = 0x00, + GPT_CLK_DIV1 = 0x00, +}; + +/* + * This is defined as weak no-ops that can be overridden by legacy SOCs. Some + * legacy SOCs need specific settings before init timer. And we expect future + * SOCs will not need it. + */ +void timer_prepare(void); + +#endif -- cgit v1.2.3