diff options
| author | Jun Chen <jun.chen@vatics.com> | 2020-03-02 16:58:57 +0800 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2020-03-16 08:04:29 +0100 |
| commit | 27d483bfa34c1695c2be230efc50c52d5a3d04e2 (patch) | |
| tree | 27231bf8b1963510c58bb7466231db6c5f745fa6 /drivers/i2c | |
| parent | be26342314a6aacc1bb1e53ad00dfb4b836f0134 (diff) | |
| download | u-boot-27d483bfa34c1695c2be230efc50c52d5a3d04e2.tar.gz | |
i2c: designware_i2c: add 'hs_hcnt' and 'hs_lcnt' for high speed
Add support for high speed if scl_sda_cfg exist.
Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/designware_i2c.c | 3 | ||||
| -rw-r--r-- | drivers/i2c/designware_i2c.h | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index 74aef7744c..088a6f3efb 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -240,6 +240,9 @@ static int calc_bus_speed(struct dw_i2c *priv, int speed, ulong bus_clk, if (i2c_spd == IC_SPEED_MODE_STANDARD) { config->scl_hcnt = scl_sda_cfg->ss_hcnt; config->scl_lcnt = scl_sda_cfg->ss_lcnt; + } else if (i2c_spd == IC_SPEED_MODE_HIGH) { + config->scl_hcnt = scl_sda_cfg->hs_hcnt; + config->scl_lcnt = scl_sda_cfg->hs_lcnt; } else { config->scl_hcnt = scl_sda_cfg->fs_hcnt; config->scl_lcnt = scl_sda_cfg->fs_lcnt; diff --git a/drivers/i2c/designware_i2c.h b/drivers/i2c/designware_i2c.h index 5a04ce50e2..7ee236193d 100644 --- a/drivers/i2c/designware_i2c.h +++ b/drivers/i2c/designware_i2c.h @@ -146,15 +146,19 @@ struct i2c_regs { * * @ss_hcnt: Standard speed high time in ns * @fs_hcnt: Fast speed high time in ns + * @hs_hcnt: High speed high time in ns * @ss_lcnt: Standard speed low time in ns * @fs_lcnt: Fast speed low time in ns + * @hs_lcnt: High speed low time in ns * @sda_hold: SDA hold time */ struct dw_scl_sda_cfg { u32 ss_hcnt; u32 fs_hcnt; + u32 hs_hcnt; u32 ss_lcnt; u32 fs_lcnt; + u32 hs_lcnt; u32 sda_hold; }; |