* [PATCH 0/3] Add Tegra264 HTE provider
@ 2026-04-01 21:38 Suneel Garapati
2026-04-01 21:38 ` [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support Suneel Garapati
` (2 more replies)
0 siblings, 3 replies; 10+ messages in thread
From: Suneel Garapati @ 2026-04-01 21:38 UTC (permalink / raw)
To: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre,
sheetal, kkartik, robh, pshete, timestamp, devicetree,
linux-tegra, linux-kernel
Cc: Suneel Garapati
This patch series mainly adds support for the Tegra264 HTE provider.
- Update devicetree bindings to add Tegra264 support
- Add support in driver for Tegra264 chip including new tsc clock
parameters setup per SoC as values differ for Tegra264
- Populate device-tree nodes for Tegra264 GTE instances
- One of devicetree nodes has reference to gpio_aon node that is
dependent on this series [1]
1 - https://patchwork.ozlabs.org/project/linux-gpio/patch/20260128085114.1137725-3-pshete@nvidia.com/
Suneel Garapati (3):
dt-bindings: timestamp: Add Tegra264 support
hte: tegra194: Add Tegra264 GTE support
arm64: tegra: Add GTE nodes for Tegra264
.../timestamp/nvidia,tegra194-hte.yaml | 3 +
arch/arm64/boot/dts/nvidia/tegra264.dtsi | 19 +++
drivers/hte/hte-tegra194.c | 133 +++++++++++++++++-
3 files changed, 150 insertions(+), 5 deletions(-)
--
2.34.1
^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-01 21:38 [PATCH 0/3] Add Tegra264 HTE provider Suneel Garapati @ 2026-04-01 21:38 ` Suneel Garapati 2026-04-02 8:47 ` Krzysztof Kozlowski 2026-04-01 21:38 ` [PATCH 2/3] hte: tegra194: Add Tegra264 GTE support Suneel Garapati 2026-04-01 21:38 ` [PATCH 3/3] arm64: tegra: Add GTE nodes for Tegra264 Suneel Garapati 2 siblings, 1 reply; 10+ messages in thread From: Suneel Garapati @ 2026-04-01 21:38 UTC (permalink / raw) To: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel Cc: Suneel Garapati Add timestamp provider support for the Tegra264 in devicetree bindings. Tegra264 has two generic timestamping engines (GTE) which are the always-on GTE (AON) and legacy interrupt controller (LIC) GTE. Signed-off-by: Suneel Garapati <suneelg@nvidia.com> --- .../devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml index 456797967adc..210200421a38 100644 --- a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml +++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml @@ -25,6 +25,8 @@ properties: - nvidia,tegra194-gte-lic - nvidia,tegra234-gte-aon - nvidia,tegra234-gte-lic + - nvidia,tegra264-gte-aon + - nvidia,tegra264-gte-lic reg: maxItems: 1 @@ -112,6 +114,7 @@ allOf: contains: enum: - nvidia,tegra234-gte-aon + - nvidia,tegra264-gte-aon then: required: - nvidia,gpio-controller -- 2.34.1 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-01 21:38 ` [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support Suneel Garapati @ 2026-04-02 8:47 ` Krzysztof Kozlowski 2026-04-02 8:47 ` Krzysztof Kozlowski 0 siblings, 1 reply; 10+ messages in thread From: Krzysztof Kozlowski @ 2026-04-02 8:47 UTC (permalink / raw) To: Suneel Garapati Cc: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: > reg: > maxItems: 1 > @@ -112,6 +114,7 @@ allOf: > contains: > enum: > - nvidia,tegra234-gte-aon > + - nvidia,tegra264-gte-aon And why exactly the slices are variable here? Explain that in commit msg. Best regards, Krzysztof ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-02 8:47 ` Krzysztof Kozlowski @ 2026-04-02 8:47 ` Krzysztof Kozlowski 2026-04-02 9:49 ` Jon Hunter 0 siblings, 1 reply; 10+ messages in thread From: Krzysztof Kozlowski @ 2026-04-02 8:47 UTC (permalink / raw) To: Suneel Garapati Cc: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On 02/04/2026 10:47, Krzysztof Kozlowski wrote: > On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: >> reg: >> maxItems: 1 >> @@ -112,6 +114,7 @@ allOf: >> contains: >> enum: >> - nvidia,tegra234-gte-aon >> + - nvidia,tegra264-gte-aon > > And why exactly the slices are variable here? Explain that in commit > msg. s/Explain/Shortly describe/ Best regards, Krzysztof ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-02 8:47 ` Krzysztof Kozlowski @ 2026-04-02 9:49 ` Jon Hunter 2026-04-02 9:53 ` Krzysztof Kozlowski 0 siblings, 1 reply; 10+ messages in thread From: Jon Hunter @ 2026-04-02 9:49 UTC (permalink / raw) To: Krzysztof Kozlowski, Suneel Garapati Cc: dipenp, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On 02/04/2026 09:47, Krzysztof Kozlowski wrote: > On 02/04/2026 10:47, Krzysztof Kozlowski wrote: >> On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: >>> reg: >>> maxItems: 1 >>> @@ -112,6 +114,7 @@ allOf: >>> contains: >>> enum: >>> - nvidia,tegra234-gte-aon >>> + - nvidia,tegra264-gte-aon >> >> And why exactly the slices are variable here? Explain that in commit >> msg. > > s/Explain/Shortly describe/ So this is not related to slices, but indicating the 'nvidia,gpio-controller' property is required for the AON controller. However, maybe your comment still applies and you want the commit message to be explicit that for the AON instance the 'nvidia,gpio-controller' is needed? Jon -- nvpublic ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-02 9:49 ` Jon Hunter @ 2026-04-02 9:53 ` Krzysztof Kozlowski 2026-04-02 10:21 ` Jon Hunter 0 siblings, 1 reply; 10+ messages in thread From: Krzysztof Kozlowski @ 2026-04-02 9:53 UTC (permalink / raw) To: Jon Hunter, Suneel Garapati Cc: dipenp, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On 02/04/2026 11:49, Jon Hunter wrote: > > On 02/04/2026 09:47, Krzysztof Kozlowski wrote: >> On 02/04/2026 10:47, Krzysztof Kozlowski wrote: >>> On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: >>>> reg: >>>> maxItems: 1 >>>> @@ -112,6 +114,7 @@ allOf: >>>> contains: >>>> enum: >>>> - nvidia,tegra234-gte-aon >>>> + - nvidia,tegra264-gte-aon >>> >>> And why exactly the slices are variable here? Explain that in commit >>> msg. >> >> s/Explain/Shortly describe/ > > So this is not related to slices, but indicating the > 'nvidia,gpio-controller' property is required for the AON controller. > However, maybe your comment still applies and you want the commit > message to be explicit that for the AON instance the > 'nvidia,gpio-controller' is needed? You have two devices there - AON and LIC - and variable properties. I want answer why things are variable. HW is rarely variable. It is opposite of variable - afixed. Best regards, Krzysztof ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-02 9:53 ` Krzysztof Kozlowski @ 2026-04-02 10:21 ` Jon Hunter 2026-04-02 10:24 ` Krzysztof Kozlowski 0 siblings, 1 reply; 10+ messages in thread From: Jon Hunter @ 2026-04-02 10:21 UTC (permalink / raw) To: Krzysztof Kozlowski, Suneel Garapati Cc: dipenp, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On 02/04/2026 10:53, Krzysztof Kozlowski wrote: > On 02/04/2026 11:49, Jon Hunter wrote: >> >> On 02/04/2026 09:47, Krzysztof Kozlowski wrote: >>> On 02/04/2026 10:47, Krzysztof Kozlowski wrote: >>>> On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: >>>>> reg: >>>>> maxItems: 1 >>>>> @@ -112,6 +114,7 @@ allOf: >>>>> contains: >>>>> enum: >>>>> - nvidia,tegra234-gte-aon >>>>> + - nvidia,tegra264-gte-aon >>>> >>>> And why exactly the slices are variable here? Explain that in commit >>>> msg. >>> >>> s/Explain/Shortly describe/ >> >> So this is not related to slices, but indicating the >> 'nvidia,gpio-controller' property is required for the AON controller. >> However, maybe your comment still applies and you want the commit >> message to be explicit that for the AON instance the >> 'nvidia,gpio-controller' is needed? > > You have two devices there - AON and LIC - and variable properties. I > want answer why things are variable. HW is rarely variable. It is > opposite of variable - afixed. So note that 'nvidia,slices' is a deprecated property ... 1815e37b6e67 ("dt-bindings: timestamp: Deprecate nvidia,slices property") I am guessing we did not bother to specify the slices for Tegra264 because this is no longer being used/supported. And yes, we should have made this clear in the commit message :-) Do you want the commit message updated? Jon -- nvpublic ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support 2026-04-02 10:21 ` Jon Hunter @ 2026-04-02 10:24 ` Krzysztof Kozlowski 0 siblings, 0 replies; 10+ messages in thread From: Krzysztof Kozlowski @ 2026-04-02 10:24 UTC (permalink / raw) To: Jon Hunter, Suneel Garapati Cc: dipenp, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel On 02/04/2026 12:21, Jon Hunter wrote: > > On 02/04/2026 10:53, Krzysztof Kozlowski wrote: >> On 02/04/2026 11:49, Jon Hunter wrote: >>> >>> On 02/04/2026 09:47, Krzysztof Kozlowski wrote: >>>> On 02/04/2026 10:47, Krzysztof Kozlowski wrote: >>>>> On Wed, Apr 01, 2026 at 09:38:29PM +0000, Suneel Garapati wrote: >>>>>> reg: >>>>>> maxItems: 1 >>>>>> @@ -112,6 +114,7 @@ allOf: >>>>>> contains: >>>>>> enum: >>>>>> - nvidia,tegra234-gte-aon >>>>>> + - nvidia,tegra264-gte-aon >>>>> >>>>> And why exactly the slices are variable here? Explain that in commit >>>>> msg. >>>> >>>> s/Explain/Shortly describe/ >>> >>> So this is not related to slices, but indicating the >>> 'nvidia,gpio-controller' property is required for the AON controller. >>> However, maybe your comment still applies and you want the commit >>> message to be explicit that for the AON instance the >>> 'nvidia,gpio-controller' is needed? >> >> You have two devices there - AON and LIC - and variable properties. I >> want answer why things are variable. HW is rarely variable. It is >> opposite of variable - afixed. > > So note that 'nvidia,slices' is a deprecated property ... > > 1815e37b6e67 ("dt-bindings: timestamp: Deprecate nvidia,slices property") > > I am guessing we did not bother to specify the slices for Tegra264 > because this is no longer being used/supported. And yes, we should have > made this clear in the commit message :-) > Deprecated properties should not be allowed by the schema for new devices. > Do you want the commit message updated? It's enough to disallow the property. Best regards, Krzysztof ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 2/3] hte: tegra194: Add Tegra264 GTE support 2026-04-01 21:38 [PATCH 0/3] Add Tegra264 HTE provider Suneel Garapati 2026-04-01 21:38 ` [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support Suneel Garapati @ 2026-04-01 21:38 ` Suneel Garapati 2026-04-01 21:38 ` [PATCH 3/3] arm64: tegra: Add GTE nodes for Tegra264 Suneel Garapati 2 siblings, 0 replies; 10+ messages in thread From: Suneel Garapati @ 2026-04-01 21:38 UTC (permalink / raw) To: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel Cc: Suneel Garapati Add AON-GTE mapping and LIC GTE instance support for the Tegra264. Move TSC clock parameters from macros to members of SoC data as values differ for Tegra264 chip. Signed-off-by: Suneel Garapati <suneelg@nvidia.com> --- drivers/hte/hte-tegra194.c | 133 +++++++++++++++++++++++++++++++++++-- 1 file changed, 128 insertions(+), 5 deletions(-) diff --git a/drivers/hte/hte-tegra194.c b/drivers/hte/hte-tegra194.c index 690eb9be30fb..4a7702b32b24 100644 --- a/drivers/hte/hte-tegra194.c +++ b/drivers/hte/hte-tegra194.c @@ -20,10 +20,11 @@ #define HTE_SUSPEND 0 -/* HTE source clock TSC is 31.25MHz */ +/* HTE source clock TSC is 1GHz for T264 and 31.25MHz for others */ #define HTE_TS_CLK_RATE_HZ 31250000ULL +#define HTE_TS_CLK_RATE_1G 1000000000ULL #define HTE_CLK_RATE_NS 32 -#define HTE_TS_NS_SHIFT __builtin_ctz(HTE_CLK_RATE_NS) +#define HTE_CLK_RATE_NS_1G 1 #define NV_AON_SLICE_INVALID -1 #define NV_LINES_IN_SLICE 32 @@ -120,6 +121,8 @@ struct tegra_hte_data { u32 slices; u32 map_sz; u32 sec_map_sz; + u64 tsc_clkrate_hz; + u32 tsc_clkrate_ns; const struct tegra_hte_line_mapped *map; const struct tegra_hte_line_mapped *sec_map; }; @@ -317,6 +320,94 @@ static const struct tegra_hte_line_mapped tegra234_aon_gpio_sec_map[] = { [40] = {2, NV_AON_HTE_SLICE2_IRQ_GPIO_23}, }; +static const struct tegra_hte_line_mapped tegra264_aon_gpio_map[] = { + /* gpio, slice, bit_index */ + /* AA port */ + [0] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_29}, + [1] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_28}, + [2] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_27}, + [3] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_26}, + [4] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_25}, + [5] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_24}, + [6] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_23}, + [7] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_22}, + /* BB port */ + [8] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_21}, + [9] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_20}, + /* CC port */ + [10] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_19}, + [11] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_18}, + [12] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_17}, + [13] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_16}, + [14] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_15}, + [15] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_14}, + [16] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_13}, + [17] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_12}, + /* DD port */ + [18] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_11}, + [19] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_10}, + [20] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_9}, + [21] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_8}, + [22] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_7}, + [23] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_6}, + [24] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_5}, + [25] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_4}, + /* EE port */ + [26] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_3}, + [27] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_2}, + [28] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_1}, + [29] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_0}, +}; + +static const struct tegra_hte_line_mapped tegra264_aon_gpio_sec_map[] = { + /* gpio, slice, bit_index */ + /* AA port */ + [0] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_29}, + [1] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_28}, + [2] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_27}, + [3] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_26}, + [4] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_25}, + [5] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_24}, + [6] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_23}, + [7] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_22}, + /* BB port */ + [8] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_21}, + [9] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_20}, + [10] = {NV_AON_SLICE_INVALID, 0}, + [11] = {NV_AON_SLICE_INVALID, 0}, + [12] = {NV_AON_SLICE_INVALID, 0}, + [13] = {NV_AON_SLICE_INVALID, 0}, + [14] = {NV_AON_SLICE_INVALID, 0}, + [15] = {NV_AON_SLICE_INVALID, 0}, + /* CC port */ + [16] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_19}, + [17] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_18}, + [18] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_17}, + [19] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_16}, + [20] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_15}, + [21] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_14}, + [22] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_13}, + [23] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_12}, + /* DD port */ + [24] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_11}, + [25] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_10}, + [26] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_9}, + [27] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_8}, + [28] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_7}, + [29] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_6}, + [30] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_5}, + [31] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_4}, + /* EE port */ + [32] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_3}, + [33] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_2}, + [34] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_1}, + [35] = {3, NV_AON_HTE_SLICE2_IRQ_GPIO_0}, + [36] = {NV_AON_SLICE_INVALID, 0}, + [37] = {NV_AON_SLICE_INVALID, 0}, + [38] = {NV_AON_SLICE_INVALID, 0}, + [39] = {NV_AON_SLICE_INVALID, 0}, +}; + static const struct tegra_hte_data t194_aon_hte = { .map_sz = ARRAY_SIZE(tegra194_aon_gpio_map), .map = tegra194_aon_gpio_map, @@ -324,6 +415,8 @@ static const struct tegra_hte_data t194_aon_hte = { .sec_map = tegra194_aon_gpio_sec_map, .type = HTE_TEGRA_TYPE_GPIO, .slices = 3, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_HZ, + .tsc_clkrate_ns = HTE_CLK_RATE_NS, }; static const struct tegra_hte_data t234_aon_hte = { @@ -333,6 +426,19 @@ static const struct tegra_hte_data t234_aon_hte = { .sec_map = tegra234_aon_gpio_sec_map, .type = HTE_TEGRA_TYPE_GPIO, .slices = 3, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_HZ, + .tsc_clkrate_ns = HTE_CLK_RATE_NS, +}; + +static const struct tegra_hte_data t264_aon_hte = { + .map_sz = ARRAY_SIZE(tegra264_aon_gpio_map), + .map = tegra264_aon_gpio_map, + .sec_map_sz = ARRAY_SIZE(tegra264_aon_gpio_sec_map), + .sec_map = tegra264_aon_gpio_sec_map, + .type = HTE_TEGRA_TYPE_GPIO, + .slices = 4, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_1G, + .tsc_clkrate_ns = HTE_CLK_RATE_NS_1G, }; static const struct tegra_hte_data t194_lic_hte = { @@ -340,6 +446,8 @@ static const struct tegra_hte_data t194_lic_hte = { .map = NULL, .type = HTE_TEGRA_TYPE_LIC, .slices = 11, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_HZ, + .tsc_clkrate_ns = HTE_CLK_RATE_NS, }; static const struct tegra_hte_data t234_lic_hte = { @@ -347,6 +455,17 @@ static const struct tegra_hte_data t234_lic_hte = { .map = NULL, .type = HTE_TEGRA_TYPE_LIC, .slices = 17, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_HZ, + .tsc_clkrate_ns = HTE_CLK_RATE_NS, +}; + +static const struct tegra_hte_data t264_lic_hte = { + .map_sz = 0, + .map = NULL, + .type = HTE_TEGRA_TYPE_LIC, + .slices = 10, + .tsc_clkrate_hz = HTE_TS_CLK_RATE_1G, + .tsc_clkrate_ns = HTE_CLK_RATE_NS_1G, }; static inline u32 tegra_hte_readl(struct tegra_hte_soc *hte, u32 reg) @@ -574,12 +693,12 @@ static int tegra_hte_release(struct hte_chip *chip, struct hte_ts_desc *desc, static int tegra_hte_clk_src_info(struct hte_chip *chip, struct hte_clk_info *ci) { - (void)chip; + struct tegra_hte_soc *hte_dev = chip->data; if (!ci) return -EINVAL; - ci->hz = HTE_TS_CLK_RATE_HZ; + ci->hz = hte_dev->prov_data->tsc_clkrate_hz; ci->type = CLOCK_MONOTONIC; return 0; @@ -602,8 +721,10 @@ static void tegra_hte_read_fifo(struct tegra_hte_soc *gs) { u32 tsh, tsl, src, pv, cv, acv, slice, bit_index, line_id; u64 tsc; + u8 tsc_ns_shift; struct hte_ts_data el; + tsc_ns_shift = __builtin_ctz(gs->prov_data->tsc_clkrate_ns); while ((tegra_hte_readl(gs, HTE_TESTATUS) >> HTE_TESTATUS_OCCUPANCY_SHIFT) & HTE_TESTATUS_OCCUPANCY_MASK) { @@ -621,7 +742,7 @@ static void tegra_hte_read_fifo(struct tegra_hte_soc *gs) while (acv) { bit_index = __builtin_ctz(acv); line_id = bit_index + (slice << 5); - el.tsc = tsc << HTE_TS_NS_SHIFT; + el.tsc = tsc << tsc_ns_shift; el.raw_level = tegra_hte_get_level(gs, line_id); hte_push_ts_ns(gs->chip, line_id, &el); acv &= ~BIT(bit_index); @@ -656,6 +777,8 @@ static const struct of_device_id tegra_hte_of_match[] = { { .compatible = "nvidia,tegra194-gte-aon", .data = &t194_aon_hte}, { .compatible = "nvidia,tegra234-gte-lic", .data = &t234_lic_hte}, { .compatible = "nvidia,tegra234-gte-aon", .data = &t234_aon_hte}, + { .compatible = "nvidia,tegra264-gte-lic", .data = &t264_lic_hte}, + { .compatible = "nvidia,tegra264-gte-aon", .data = &t264_aon_hte}, { } }; MODULE_DEVICE_TABLE(of, tegra_hte_of_match); -- 2.34.1 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 3/3] arm64: tegra: Add GTE nodes for Tegra264 2026-04-01 21:38 [PATCH 0/3] Add Tegra264 HTE provider Suneel Garapati 2026-04-01 21:38 ` [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support Suneel Garapati 2026-04-01 21:38 ` [PATCH 2/3] hte: tegra194: Add Tegra264 GTE support Suneel Garapati @ 2026-04-01 21:38 ` Suneel Garapati 2 siblings, 0 replies; 10+ messages in thread From: Suneel Garapati @ 2026-04-01 21:38 UTC (permalink / raw) To: dipenp, jonathanh, thierry.reding, krzk+dt, conor+dt, amhetre, sheetal, kkartik, robh, pshete, timestamp, devicetree, linux-tegra, linux-kernel Cc: Suneel Garapati Add AON GPIO and system LIC GTE instances for Tegra264. Signed-off-by: Suneel Garapati <suneelg@nvidia.com> --- arch/arm64/boot/dts/nvidia/tegra264.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra264.dtsi b/arch/arm64/boot/dts/nvidia/tegra264.dtsi index 06d8357bdf52..c6630733d5e3 100644 --- a/arch/arm64/boot/dts/nvidia/tegra264.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra264.dtsi @@ -3207,6 +3207,15 @@ agic_page5: interrupt-controller@99b0000 { }; }; + hte_lic: hardware-timestamp@8380000 { + compatible = "nvidia,tegra264-gte-lic"; + reg = <0x0 0x08380000 0x0 0x10000>; + interrupts = <GIC_SPI 0x00000268 IRQ_TYPE_LEVEL_HIGH>; + nvidia,int-threshold = <1>; + #timestamp-cells = <1>; + status = "disabled"; + }; + gpcdma: dma-controller@8400000 { compatible = "nvidia,tegra264-gpcdma", "nvidia,tegra186-gpcdma"; reg = <0x0 0x08400000 0x0 0x210000>; @@ -3267,6 +3276,16 @@ hsp_top: hsp@8800000 { #mbox-cells = <2>; }; + hte_aon: hardware-timestamp@c2b0000 { + compatible = "nvidia,tegra264-gte-aon"; + reg = <0x0 0x0c2b0000 0x0 0x10000>; + interrupts = <GIC_SPI 0x00000226 IRQ_TYPE_LEVEL_HIGH>; + nvidia,int-threshold = <1>; + #timestamp-cells = <1>; + nvidia,gpio-controller = <&gpio_aon>; + status = "disabled"; + }; + rtc: rtc@c2c0000 { compatible = "nvidia,tegra264-rtc", "nvidia,tegra20-rtc"; reg = <0x0 0x0c2c0000 0x0 0x10000>; -- 2.34.1 ^ permalink raw reply related [flat|nested] 10+ messages in thread
end of thread, other threads:[~2026-04-02 10:24 UTC | newest] Thread overview: 10+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2026-04-01 21:38 [PATCH 0/3] Add Tegra264 HTE provider Suneel Garapati 2026-04-01 21:38 ` [PATCH 1/3] dt-bindings: timestamp: Add Tegra264 support Suneel Garapati 2026-04-02 8:47 ` Krzysztof Kozlowski 2026-04-02 8:47 ` Krzysztof Kozlowski 2026-04-02 9:49 ` Jon Hunter 2026-04-02 9:53 ` Krzysztof Kozlowski 2026-04-02 10:21 ` Jon Hunter 2026-04-02 10:24 ` Krzysztof Kozlowski 2026-04-01 21:38 ` [PATCH 2/3] hte: tegra194: Add Tegra264 GTE support Suneel Garapati 2026-04-01 21:38 ` [PATCH 3/3] arm64: tegra: Add GTE nodes for Tegra264 Suneel Garapati
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