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| author | Akhil R <akhilrajeev@nvidia.com> | 2025-11-18 19:36:20 +0530 |
|---|---|---|
| committer | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2026-01-14 08:02:20 +0100 |
| commit | 1ac9e16dd226a26a479c7392c9ec28f1c9eec61c (patch) | |
| tree | d45a9411614e3da613df26fccfb9f411dc0c7498 /drivers/i2c | |
| parent | 6077cfd716fbd4d1f2a3702e49ae8bf65c072685 (diff) | |
| download | linux-next-1ac9e16dd226a26a479c7392c9ec28f1c9eec61c.tar.gz linux-next-1ac9e16dd226a26a479c7392c9ec28f1c9eec61c.zip | |
i2c: tegra: Add Tegra264 support
Add support for Tegra264 SoC which supports 17 generic I2C controllers,
two of which are in the AON (always-on) partition of the SoC. In
addition to the features supported by Tegra194 it also supports a
SW mutex register to allow sharing the same I2C instance across
multiple firmware.
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 84f2d5f4b794..d05015ef425d 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -1853,7 +1853,40 @@ static const struct tegra_i2c_hw_feature tegra256_i2c_hw = { .has_mutex = true, }; +static const struct tegra_i2c_hw_feature tegra264_i2c_hw = { + .has_continue_xfer_support = true, + .has_per_pkt_xfer_complete_irq = true, + .clk_divisor_hs_mode = 1, + .clk_divisor_std_mode = 0x1d, + .clk_divisor_fast_mode = 0x15, + .clk_divisor_fast_plus_mode = 0x8, + .has_config_load_reg = true, + .has_multi_master_mode = true, + .has_slcg_override_reg = true, + .has_mst_fifo = true, + .has_mst_reset = true, + .quirks = &tegra194_i2c_quirks, + .supports_bus_clear = true, + .has_apb_dma = false, + .tlow_std_mode = 0x8, + .thigh_std_mode = 0x7, + .tlow_fast_mode = 0x2, + .thigh_fast_mode = 0x2, + .tlow_fastplus_mode = 0x2, + .thigh_fastplus_mode = 0x2, + .tlow_hs_mode = 0x4, + .thigh_hs_mode = 0x2, + .setup_hold_time_std_mode = 0x08080808, + .setup_hold_time_fast_mode = 0x02020202, + .setup_hold_time_fastplus_mode = 0x02020202, + .setup_hold_time_hs_mode = 0x090909, + .has_interface_timing_reg = true, + .enable_hs_mode_support = true, + .has_mutex = true, +}; + static const struct of_device_id tegra_i2c_of_match[] = { + { .compatible = "nvidia,tegra264-i2c", .data = &tegra264_i2c_hw, }, { .compatible = "nvidia,tegra256-i2c", .data = &tegra256_i2c_hw, }, { .compatible = "nvidia,tegra194-i2c", .data = &tegra194_i2c_hw, }, { .compatible = "nvidia,tegra186-i2c", .data = &tegra186_i2c_hw, }, |