diff options
| author | Diana Z <dzigterman@chromium.org> | 2020-02-14 12:56:04 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-25 23:03:49 +0000 |
| commit | 2696c706b8b97f28dfc5448687f168e9225cc61f (patch) | |
| tree | 839c0c998f507ee2ee0333547b686463f34d61e6 /driver/retimer/tusb544.h | |
| parent | 1707e1ea83a9df8162c18321fc5a529d38f58870 (diff) | |
| download | chrome-ec-2696c706b8b97f28dfc5448687f168e9225cc61f.tar.gz | |
TUSB544: Add driver
Driver code for the TUSB544 redriver
BRANCH=None
BUG=b:149561847
TEST=builds
Change-Id: I391d6d264ff9d326c2d45569124dd1366f892812
Signed-off-by: Diana Z <dzigterman@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2062766
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'driver/retimer/tusb544.h')
| -rw-r--r-- | driver/retimer/tusb544.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/driver/retimer/tusb544.h b/driver/retimer/tusb544.h new file mode 100644 index 0000000000..7a1b0a82cd --- /dev/null +++ b/driver/retimer/tusb544.h @@ -0,0 +1,49 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * TI TUSB544 USB Type-C Multi-Protocol Linear Redriver + */ + +#ifndef __CROS_EC_USB_REDRIVER_TUSB544_H +#define __CROS_EC_USB_REDRIVER_TUSB544_H + +#define TUSB544_ADDR_FLAGS0 0x44 + +#define TUSB544_REG_GENERAL4 0x0A +#define TUSB544_GEN4_CTL_SEL GENMASK(1, 0) +#define TUSB544_GEN4_FLIP_SEL BIT(2) +#define TUSB544_GEN4_HPDIN BIT(3) +#define TUSB544_GEN4_EQ_OVRD BIT(4) +#define TUSB544_GEN4_SWAP_SEL BIT(5) + +enum tusb544_ct_sel { + TUSB544_CTL_SEL_DISABLED, + TUSB544_CTL_SEL_USB_ONLY, + TUSB544_CTL_SEL_DP_ONLY, + TUSB544_CTL_SEL_DP_USB, +}; + +#define TUSB544_REG_GENERAL6 0x0C +#define TUSB544_GEN6_DIR_SEL GENMASK(1, 0) + +enum tusb544_dir_sel { + TUSB544_DIR_SEL_USB_DP_SRC, + TUSB544_DIR_SEL_USB_DP_SNK, + TUSB544_DIR_SEL_CUSTOM_SRC, + TUSB544_DIS_SEL_CUSTOM_SNK, +}; + +/* + * Note: TUSB544 automatically snoops DP lanes to enable, but may be manually + * directed which lanes to turn on when snoop is disabled + */ +#define TUSB544_REG_DP4 0x13 +#define TUSB544_DP4_DP0_DISABLE BIT(0) +#define TUSB544_DP4_DP1_DISABLE BIT(1) +#define TUSB544_DP4_DP2_DISABLE BIT(2) +#define TUSB544_DP4_DP3_DISABLE BIT(3) +#define TUSB544_DP4_AUX_SBU_OVR GENMASK(5, 4) +#define TUSB544_DP4_AUX_SNOOP_DISABLE BIT(7) + +#endif |