diff options
| author | Ruilin Hao <rlhao@marvell.com> | 2015-11-10 00:18:59 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-02-04 11:31:45 +0100 |
| commit | de4defbaaf76a8bf7a705e3d1b265e1936cd7481 (patch) | |
| tree | 8b1184e4496851be3a9a98d8a37527be4891bab9 /src/soc/marvell/armada38x/clock.c | |
| parent | c1b9e7934c0b100b8ce558669df8b57a03b2271f (diff) | |
soc/marvell/armada38x: Add i2c driver for armada38x
Port i2c driver from uboot to coreboot
BUG=chrome-os-partner:47462
TEST=emerge-cyclone coreboot
BRANCH=tot
Change-Id: I8ce2a965acaed68ad0f0518648490ec471c6810b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4c2e9592662787ebed1d0aa8cafaa00fd12c2e9c
Original-Change-Id: If791228edf29405fa4b2f959a21510bd7da9865b
Original-Signed-off-by: Ruilin Hao <rlhao@marvell.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/313342
Original-Commit-Ready: Kan Yan <kyan@google.com>
Original-Tested-by: Kan Yan <kyan@google.com>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/13113
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/marvell/armada38x/clock.c')
| -rw-r--r-- | src/soc/marvell/armada38x/clock.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/soc/marvell/armada38x/clock.c b/src/soc/marvell/armada38x/clock.c new file mode 100644 index 0000000000..579e1a3d2b --- /dev/null +++ b/src/soc/marvell/armada38x/clock.c @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google 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. + */ + +#include <soc/common.h> +#include <soc/clock.h> + +uint32_t mv_tclk_get(void) +{ + uint32_t tclk_reg_value; + uint32_t tclk; + + tclk_reg_value = (mrvl_reg_read(MPP_SAMPLE_AT_RESET)); + tclk_reg_value = ((tclk_reg_value & (1 << 15)) >> 15); + switch (tclk_reg_value) { + case 0: + tclk = MV_BOARD_TCLK_250MHZ; + case 1: + tclk = MV_BOARD_TCLK_200MHZ; + default: + tclk = MV_BOARD_TCLK_250MHZ; + } + return tclk; +} |