* [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support
@ 2026-03-25 21:26 Chun Ng
2026-03-25 21:26 ` [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions Chun Ng
` (3 more replies)
0 siblings, 4 replies; 10+ messages in thread
From: Chun Ng @ 2026-03-25 21:26 UTC (permalink / raw)
To: linux-tegra
Cc: devicetree, linux-kernel, robh, krzk+dt, conor+dt, thierry.reding,
jonathanh, chunn, ankitag
Hi all,
This series adds initial support for the NVIDIA Tegra238 SoC and the
E2426-1099+E2423-1099 engineering reference platform. The series follows
the pattern used for Tegra234 and other recent Tegra SoCs.
It introduces Tegra238 clock and reset binding headers, documents the
E2426-1099+E2423-1099 platform compatibles, relaxes the tegra186-hsp
binding schema for HSP configurations used on Tegra238, and adds the
initial Tegra238 SoC device tree plus board DTS.
The device tree added here is minimal scaffolding only. It is not yet
bootable, and further enablement will follow in later series.
The patch order puts bindings before implementation: clock/reset IDs
first, then platform documentation, then the HSP schema update required
by tegra238.dtsi, and finally the SoC and board device trees.
This series is based on linux-next commit 785f0eb2f85d
("Add linux-next specific files for 20260320").
Tested with:
- make ARCH=arm64 CHECK_DTBS=yes nvidia/tegra238-e2426-1099+e2423-1099.dtb
- make ARCH=arm64 dt_binding_check
Chun Ng (4):
dt-bindings: tegra: Add Tegra238 clock and reset definitions
dt-bindings: tegra: Document E2426-1099+E2423-1099 platform
dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or
shared-only
arm64: tegra: add e2426-1099+e2423-1099 support
.../devicetree/bindings/arm/tegra.yaml | 4 +
.../bindings/mailbox/nvidia,tegra186-hsp.yaml | 7 +
arch/arm64/boot/dts/nvidia/Makefile | 2 +
.../nvidia/tegra238-e2426-1099+e2423-1099.dts | 16 +
arch/arm64/boot/dts/nvidia/tegra238.dtsi | 190 ++++++++++++
include/dt-bindings/clock/nvidia,tegra238.h | 279 ++++++++++++++++++
include/dt-bindings/reset/nvidia,tegra238.h | 125 ++++++++
7 files changed, 623 insertions(+)
create mode 100644 arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
create mode 100644 arch/arm64/boot/dts/nvidia/tegra238.dtsi
create mode 100644 include/dt-bindings/clock/nvidia,tegra238.h
create mode 100644 include/dt-bindings/reset/nvidia,tegra238.h
base-commit: 785f0eb2f85decbe7c1ef9ae922931f0194ffc2e
--
2.43.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions
2026-03-25 21:26 [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support Chun Ng
@ 2026-03-25 21:26 ` Chun Ng
2026-03-26 10:19 ` Krzysztof Kozlowski
2026-03-25 21:26 ` [PATCH 2/4] dt-bindings: tegra: Document E2426-1099+E2423-1099 platform Chun Ng
` (2 subsequent siblings)
3 siblings, 1 reply; 10+ messages in thread
From: Chun Ng @ 2026-03-25 21:26 UTC (permalink / raw)
To: linux-tegra
Cc: devicetree, linux-kernel, robh, krzk+dt, conor+dt, thierry.reding,
jonathanh, chunn, ankitag
Add device tree binding headers for Tegra238 that define the clock and
reset resource IDs used by the BPMP firmware. The IDs are defined by
hardware and are not software enumerations; 0 is reserved, so numbering
starts at 1. The reset header documents reserved ID ranges where no
reset line is present.
Signed-off-by: Chun Ng <chunn@nvidia.com>
---
include/dt-bindings/clock/nvidia,tegra238.h | 279 ++++++++++++++++++++
include/dt-bindings/reset/nvidia,tegra238.h | 125 +++++++++
2 files changed, 404 insertions(+)
create mode 100644 include/dt-bindings/clock/nvidia,tegra238.h
create mode 100644 include/dt-bindings/reset/nvidia,tegra238.h
diff --git a/include/dt-bindings/clock/nvidia,tegra238.h b/include/dt-bindings/clock/nvidia,tegra238.h
new file mode 100644
index 000000000000..eb1cb01ab20a
--- /dev/null
+++ b/include/dt-bindings/clock/nvidia,tegra238.h
@@ -0,0 +1,279 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2021-2026, NVIDIA CORPORATION. All rights reserved. */
+
+#ifndef DT_BINDINGS_CLOCK_NVIDIA_TEGRA238_H
+#define DT_BINDINGS_CLOCK_NVIDIA_TEGRA238_H
+
+#define TEGRA238_CLK_ACLK 1
+#define TEGRA238_CLK_ACTMON 2
+#define TEGRA238_CLK_ADSP 3
+#define TEGRA238_CLK_ADSPNEON 4
+#define TEGRA238_CLK_AHUB 5
+#define TEGRA238_CLK_AON_APB 6
+#define TEGRA238_CLK_AON_CPU_NIC 7
+#define TEGRA238_CLK_AON_I2C_SLOW 8
+#define TEGRA238_CLK_AON_NIC 9
+#define TEGRA238_CLK_AON_TOUCH 10
+#define TEGRA238_CLK_APB2APE 11
+#define TEGRA238_CLK_APE 12
+#define TEGRA238_CLK_AUD_MCLK 13
+#define TEGRA238_CLK_AXI_CBB 14
+#define TEGRA238_CLK_AZA_2XBIT 15
+#define TEGRA238_CLK_AZA_BIT 16
+#define TEGRA238_CLK_BPMP_CPU 17
+#define TEGRA238_CLK_BPMP_CPU_NIC 18
+#define TEGRA238_CLK_CLK_32K 19
+#define TEGRA238_CLK_CLK_M 20
+#define TEGRA238_CLK_CSITE 21
+#define TEGRA238_CLK_DBGAPB 22
+#define TEGRA238_CLK_DISP 23
+#define TEGRA238_CLK_DISPHUBPLL 24
+#define TEGRA238_CLK_DISPPLL 25
+#define TEGRA238_CLK_DISP_ROOT 26
+#define TEGRA238_CLK_DMIC1 27
+#define TEGRA238_CLK_DMIC3 28
+#define TEGRA238_CLK_DMIC4 29
+#define TEGRA238_CLK_DMIC5 30
+#define TEGRA238_CLK_DPAUX 31
+#define TEGRA238_CLK_DP_LINK_REF 32
+#define TEGRA238_CLK_DSC 33
+#define TEGRA238_CLK_DSIPLL_CLKOUTA 34
+#define TEGRA238_CLK_DSIPLL_CLKOUTPN 35
+#define TEGRA238_CLK_DSIPLL_VCO 36
+#define TEGRA238_CLK_DSI_CORE 37
+#define TEGRA238_CLK_DSI_LP 38
+#define TEGRA238_CLK_DSI_PAD_INPUT 39
+#define TEGRA238_CLK_DSI_PIXEL 40
+#define TEGRA238_CLK_DSPK1 41
+#define TEGRA238_CLK_DSPK2 42
+#define TEGRA238_CLK_EMC 43
+#define TEGRA238_CLK_EMCHUB 44
+#define TEGRA238_CLK_EMCSA_EMC 45
+#define TEGRA238_CLK_EMCSA_MC 46
+#define TEGRA238_CLK_EMCSA_MPLL 47
+#define TEGRA238_CLK_EMCSB_EMC 48
+#define TEGRA238_CLK_EMCSB_MC 49
+#define TEGRA238_CLK_EMCSB_MPLL 50
+#define TEGRA238_CLK_EXTPERIPH1 51
+#define TEGRA238_CLK_EXTPERIPH2 52
+#define TEGRA238_CLK_EXTPERIPH3 53
+#define TEGRA238_CLK_EXTPERIPH4 54
+#define TEGRA238_CLK_FDE 55
+#define TEGRA238_CLK_FR_SE 56
+#define TEGRA238_CLK_FR_SEU1 57
+#define TEGRA238_CLK_FUSE 58
+#define TEGRA238_CLK_FUSE_BURN 59
+#define TEGRA238_CLK_FUSE_SERIAL 60
+#define TEGRA238_CLK_GPC0CLK 61
+#define TEGRA238_CLK_GPU_PWR 62
+#define TEGRA238_CLK_HOST1X 63
+#define TEGRA238_CLK_HUB 64
+#define TEGRA238_CLK_HUB_ROOT 65
+#define TEGRA238_CLK_I2C1 66
+#define TEGRA238_CLK_I2C2 67
+#define TEGRA238_CLK_I2C3 68
+#define TEGRA238_CLK_I2C4 69
+#define TEGRA238_CLK_I2C5 70
+#define TEGRA238_CLK_I2C6 71
+#define TEGRA238_CLK_I2C7 72
+#define TEGRA238_CLK_I2C8 73
+#define TEGRA238_CLK_I2C9 74
+#define TEGRA238_CLK_I2C_SLOW 75
+#define TEGRA238_CLK_I2S1 76
+#define TEGRA238_CLK_I2S1_SYNC_INPUT 77
+#define TEGRA238_CLK_I2S2 78
+#define TEGRA238_CLK_I2S2_SYNC_INPUT 79
+#define TEGRA238_CLK_I2S3 80
+#define TEGRA238_CLK_I2S3_SYNC_INPUT 81
+#define TEGRA238_CLK_I2S4 82
+#define TEGRA238_CLK_I2S4_SYNC_INPUT 83
+#define TEGRA238_CLK_I2S5 84
+#define TEGRA238_CLK_I2S5_SYNC_INPUT 85
+#define TEGRA238_CLK_I2S6 86
+#define TEGRA238_CLK_I2S6_SYNC_INPUT 87
+#define TEGRA238_CLK_JTAG_INTFC_PRE_CG 88
+#define TEGRA238_CLK_LA 89
+#define TEGRA238_CLK_LINKA_SYM_CLKOUT 90
+#define TEGRA238_CLK_LINKF_SYM_CLKOUT 91
+#define TEGRA238_CLK_MAUD 92
+#define TEGRA238_CLK_MCHUB 93
+#define TEGRA238_CLK_MIPI_CAL 94
+#define TEGRA238_CLK_MPHY_CORE_PLL_FIXED 95
+#define TEGRA238_CLK_MPHY_FORCE_LS_MODE 96
+#define TEGRA238_CLK_MPHY_L0_RX_ANA 97
+#define TEGRA238_CLK_MPHY_L0_RX_HS_SYMB_DIV 98
+#define TEGRA238_CLK_MPHY_L0_RX_LS_BIT 99
+#define TEGRA238_CLK_MPHY_L0_RX_LS_BIT_DIV 100
+#define TEGRA238_CLK_MPHY_L0_RX_LS_SYMB_DIV 101
+#define TEGRA238_CLK_MPHY_L0_RX_MUX_SYMB_DIV 102
+#define TEGRA238_CLK_MPHY_L0_RX_SYMB 103
+#define TEGRA238_CLK_MPHY_L0_TX_2X_SYMB 104
+#define TEGRA238_CLK_MPHY_L0_TX_HS_SYMB_DIV 105
+#define TEGRA238_CLK_MPHY_L0_TX_LS_3XBIT 106
+#define TEGRA238_CLK_MPHY_L0_TX_LS_3XBIT_DIV 107
+#define TEGRA238_CLK_MPHY_L0_TX_LS_SYMB_DIV 108
+#define TEGRA238_CLK_MPHY_L0_TX_MUX_SYMB_DIV 109
+#define TEGRA238_CLK_MPHY_L0_TX_PRE_SYMB 110
+#define TEGRA238_CLK_MPHY_L0_TX_SYMB 111
+#define TEGRA238_CLK_MPHY_L1_RX_ANA 112
+#define TEGRA238_CLK_MPHY_TX_1MHZ_REF 113
+#define TEGRA238_CLK_MSS_ENCRYPT 114
+#define TEGRA238_CLK_NAFLL_BPMP 115
+#define TEGRA238_CLK_NAFLL_CLUSTER0_CORE 116
+#define TEGRA238_CLK_NAFLL_CLUSTER0_DSU 117
+#define TEGRA238_CLK_NAFLL_FDE 118
+#define TEGRA238_CLK_NAFLL_GPC0 119
+#define TEGRA238_CLK_NAFLL_NVDEC 120
+#define TEGRA238_CLK_NAFLL_NVENC 121
+#define TEGRA238_CLK_NAFLL_OFA 122
+#define TEGRA238_CLK_NAFLL_SE 123
+#define TEGRA238_CLK_NAFLL_SEU1 124
+#define TEGRA238_CLK_NAFLL_TSEC 125
+#define TEGRA238_CLK_NAFLL_VIC 126
+#define TEGRA238_CLK_NVDEC 127
+#define TEGRA238_CLK_NVDISPLAY_P0 128
+#define TEGRA238_CLK_NVDISPLAY_P1 129
+#define TEGRA238_CLK_NVENC 130
+#define TEGRA238_CLK_OFA 131
+#define TEGRA238_CLK_OSC 132
+#define TEGRA238_CLK_PEX0_C0_CORE 133
+#define TEGRA238_CLK_PEX0_C1_CORE 134
+#define TEGRA238_CLK_PEX0_C2_CORE 135
+#define TEGRA238_CLK_PEX0_C3_CORE 136
+#define TEGRA238_CLK_PEX_SATA_USB_RX_BYP 137
+#define TEGRA238_CLK_PEX_USB_PAD_PLL0_MGMT 138
+#define TEGRA238_CLK_PEX_USB_PAD_PLL1_MGMT 139
+#define TEGRA238_CLK_PEX_USB_PAD_PLL2_MGMT 140
+#define TEGRA238_CLK_PEX_USB_PAD_PLL3_MGMT 141
+#define TEGRA238_CLK_PLLA 142
+#define TEGRA238_CLK_PLLA1 143
+#define TEGRA238_CLK_PLLA1_OUT1 144
+#define TEGRA238_CLK_PLLAON 145
+#define TEGRA238_CLK_PLLA_DISP 146
+#define TEGRA238_CLK_PLLA_DISPHUB 147
+#define TEGRA238_CLK_PLLA_DIV2 148
+#define TEGRA238_CLK_PLLA_OUT0 149
+#define TEGRA238_CLK_PLLC 150
+#define TEGRA238_CLK_PLLC2 151
+#define TEGRA238_CLK_PLLC4 152
+#define TEGRA238_CLK_PLLC4_MUXED 153
+#define TEGRA238_CLK_PLLC4_OUT1 154
+#define TEGRA238_CLK_PLLC4_OUT2 155
+#define TEGRA238_CLK_PLLC4_VCO_DIV2 156
+#define TEGRA238_CLK_PLLE 157
+#define TEGRA238_CLK_PLLE_HPS 158
+#define TEGRA238_CLK_PLLHUB 159
+#define TEGRA238_CLK_PLLP 160
+#define TEGRA238_CLK_PLLP_AUDIO 161
+#define TEGRA238_CLK_PLLP_DIV17 162
+#define TEGRA238_CLK_PLLP_OUT0 163
+#define TEGRA238_CLK_PLLP_OUT_JTAG 164
+#define TEGRA238_CLK_PLLREFE_VCOOUT 165
+#define TEGRA238_CLK_PLLREFE_VCOOUT_GATED 166
+#define TEGRA238_CLK_PPC 167
+#define TEGRA238_CLK_PRE_SF0 168
+#define TEGRA238_CLK_PRE_SOR0 169
+#define TEGRA238_CLK_PRE_SOR0_REF 170
+#define TEGRA238_CLK_PRE_SOR1 171
+#define TEGRA238_CLK_PRE_SOR1_REF 172
+#define TEGRA238_CLK_PWM1 173
+#define TEGRA238_CLK_PWM2 174
+#define TEGRA238_CLK_PWM3 175
+#define TEGRA238_CLK_PWM4 176
+#define TEGRA238_CLK_PWM5 177
+#define TEGRA238_CLK_PWM6 178
+#define TEGRA238_CLK_PWM7 179
+#define TEGRA238_CLK_PWM8 180
+#define TEGRA238_CLK_QSPI0_2X_PM 181
+#define TEGRA238_CLK_QSPI0_PM 182
+#define TEGRA238_CLK_RG0 183
+#define TEGRA238_CLK_RG1 184
+#define TEGRA238_CLK_SDMMC1 185
+#define TEGRA238_CLK_SDMMC4 186
+#define TEGRA238_CLK_SDMMC4_AXICIF 187
+#define TEGRA238_CLK_SDMMC_LEGACY_TM 188
+#define TEGRA238_CLK_SE 189
+#define TEGRA238_CLK_SEU1 190
+#define TEGRA238_CLK_SF0 191
+#define TEGRA238_CLK_SF0_POSTMUX 192
+#define TEGRA238_CLK_SF1 193
+#define TEGRA238_CLK_SF1_POSTMUX 194
+#define TEGRA238_CLK_SOC_THERM 195
+#define TEGRA238_CLK_SOR0 196
+#define TEGRA238_CLK_SOR0_PAD_CLKOUT 197
+#define TEGRA238_CLK_SOR0_PLL_REF 198
+#define TEGRA238_CLK_SOR0_REF 199
+#define TEGRA238_CLK_SOR1 200
+#define TEGRA238_CLK_SOR1_PAD_CLKOUT 201
+#define TEGRA238_CLK_SOR1_PLL_REF 202
+#define TEGRA238_CLK_SOR1_REF 203
+#define TEGRA238_CLK_SOR_SAFE 204
+#define TEGRA238_CLK_SPI1 205
+#define TEGRA238_CLK_SPI2 206
+#define TEGRA238_CLK_SPI3 207
+#define TEGRA238_CLK_SPI4 208
+#define TEGRA238_CLK_SPI5 209
+#define TEGRA238_CLK_SPPLL0_CLKOUTA 210
+#define TEGRA238_CLK_SPPLL0_CLKOUTB 211
+#define TEGRA238_CLK_SPPLL0_CLKOUTPN 212
+#define TEGRA238_CLK_SPPLL0_DIV10 213
+#define TEGRA238_CLK_SPPLL0_DIV25 214
+#define TEGRA238_CLK_SPPLL0_DIV27PN 215
+#define TEGRA238_CLK_SPPLL0_VCO 216
+#define TEGRA238_CLK_SPPLL1_CLKOUTPN 217
+#define TEGRA238_CLK_SPPLL1_DIV27PN 218
+#define TEGRA238_CLK_SPPLL1_VCO 219
+#define TEGRA238_CLK_SYNC_DMIC1 220
+#define TEGRA238_CLK_SYNC_DMIC3 221
+#define TEGRA238_CLK_SYNC_DMIC4 222
+#define TEGRA238_CLK_SYNC_DSPK1 223
+#define TEGRA238_CLK_SYNC_DSPK2 224
+#define TEGRA238_CLK_SYNC_I2S1 225
+#define TEGRA238_CLK_SYNC_I2S2 226
+#define TEGRA238_CLK_SYNC_I2S3 227
+#define TEGRA238_CLK_SYNC_I2S4 228
+#define TEGRA238_CLK_SYNC_I2S5 229
+#define TEGRA238_CLK_SYNC_I2S6 230
+#define TEGRA238_CLK_TACH0 231
+#define TEGRA238_CLK_TACH1 232
+#define TEGRA238_CLK_TSC 233
+#define TEGRA238_CLK_TSC_REF 234
+#define TEGRA238_CLK_TSEC 235
+#define TEGRA238_CLK_TSEC_PKA 236
+#define TEGRA238_CLK_TSENSE 237
+#define TEGRA238_CLK_UARTA 238
+#define TEGRA238_CLK_UARTB 239
+#define TEGRA238_CLK_UARTC 240
+#define TEGRA238_CLK_UARTD 241
+#define TEGRA238_CLK_UARTE 242
+#define TEGRA238_CLK_UARTF 243
+#define TEGRA238_CLK_UARTG 244
+#define TEGRA238_CLK_UARTH 245
+#define TEGRA238_CLK_UART_FST_MIPI_CAL 246
+#define TEGRA238_CLK_UFSDEV_REF 247
+#define TEGRA238_CLK_UFSHC 248
+#define TEGRA238_CLK_UPHY_PLL3 249
+#define TEGRA238_CLK_USB2_TRK 250
+#define TEGRA238_CLK_UTMIPLL_CLKOUT48 251
+#define TEGRA238_CLK_UTMIPLL_CLKOUT480 252
+#define TEGRA238_CLK_UTMIP_PLL 253
+#define TEGRA238_CLK_VIC 254
+#define TEGRA238_CLK_VPLL0 255
+#define TEGRA238_CLK_VPLL0_REF 256
+#define TEGRA238_CLK_VPLL1 257
+#define TEGRA238_CLK_XUSB_CORE_DEV 258
+#define TEGRA238_CLK_XUSB_CORE_HOST 259
+#define TEGRA238_CLK_XUSB_CORE_MUX 260
+#define TEGRA238_CLK_XUSB_CORE_SS 261
+#define TEGRA238_CLK_XUSB_FALCON 262
+#define TEGRA238_CLK_XUSB_FALCON_HOST 263
+#define TEGRA238_CLK_XUSB_FALCON_SS 264
+#define TEGRA238_CLK_XUSB_FS 265
+#define TEGRA238_CLK_XUSB_FS_DEV 266
+#define TEGRA238_CLK_XUSB_FS_HOST 267
+#define TEGRA238_CLK_XUSB_HS_HSICP 268
+#define TEGRA238_CLK_XUSB_SS 269
+#define TEGRA238_CLK_XUSB_SS_DEV 270
+#define TEGRA238_CLK_XUSB_SS_SUPERSPEED 271
+
+#endif /* DT_BINDINGS_CLOCK_NVIDIA_TEGRA238_H */
diff --git a/include/dt-bindings/reset/nvidia,tegra238.h b/include/dt-bindings/reset/nvidia,tegra238.h
new file mode 100644
index 000000000000..bf1eb27f1203
--- /dev/null
+++ b/include/dt-bindings/reset/nvidia,tegra238.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2021-2026, NVIDIA CORPORATION. All rights reserved. */
+
+#ifndef DT_BINDINGS_RESET_NVIDIA_TEGRA238_H
+#define DT_BINDINGS_RESET_NVIDIA_TEGRA238_H
+
+#define TEGRA238_RESET_ACTMON 1
+#define TEGRA238_RESET_ADSP_ALL 2
+#define TEGRA238_RESET_DSI_CORE 3
+#define TEGRA238_RESET_XUSB_DEV 4
+#define TEGRA238_RESET_XUSB_HOST 5
+#define TEGRA238_RESET_XUSB_SS 6
+/* RESERVED 7 */
+#define TEGRA238_RESET_DPAUX 8
+#define TEGRA238_RESET_OFA 9
+/* RESERVED 10:15 */
+#define TEGRA238_RESET_NVDISPLAY 16
+/* RESERVED 17 */
+#define TEGRA238_RESET_GPCDMA 18
+#define TEGRA238_RESET_GPU 19
+#define TEGRA238_RESET_HDA 20
+#define TEGRA238_RESET_HDACODEC 21
+/* RESERVED 22:23 */
+#define TEGRA238_RESET_I2C1 24
+/* RESERVED 25:28 */
+#define TEGRA238_RESET_I2C2 29
+#define TEGRA238_RESET_I2C3 30
+#define TEGRA238_RESET_I2C4 31
+#define TEGRA238_RESET_I2C6 32
+#define TEGRA238_RESET_I2C7 33
+#define TEGRA238_RESET_I2C8 34
+#define TEGRA238_RESET_I2C9 35
+#define TEGRA238_RESET_ISP 36
+#define TEGRA238_RESET_MIPI_CAL 37
+#define TEGRA238_RESET_MPHY_CLK_CTL 38
+#define TEGRA238_RESET_MPHY_L0_RX 39
+#define TEGRA238_RESET_MPHY_L0_TX 40
+#define TEGRA238_RESET_MPHY_L1_RX 41
+#define TEGRA238_RESET_MPHY_L1_TX 42
+/* RESERVED 43 */
+#define TEGRA238_RESET_NVDEC 44
+/* RESERVED 45:58 */
+#define TEGRA238_RESET_NVENC 59
+/* RESERVED 60:63 */
+#define TEGRA238_RESET_LA 64
+#define TEGRA238_RESET_HWPM 65
+/* RESERVED 66 */
+#define TEGRA238_RESET_CEC 67
+#define TEGRA238_RESET_PWM1 68
+#define TEGRA238_RESET_PWM2 69
+#define TEGRA238_RESET_PWM3 70
+#define TEGRA238_RESET_PWM4 71
+#define TEGRA238_RESET_PWM5 72
+#define TEGRA238_RESET_PWM6 73
+#define TEGRA238_RESET_PWM7 74
+#define TEGRA238_RESET_PWM8 75
+#define TEGRA238_RESET_QSPI0 76
+/* RESERVED 77:81 */
+#define TEGRA238_RESET_SDMMC1 82
+#define TEGRA238_RESET_RSVD_83 83
+#define TEGRA238_RESET_RSVD_84 84
+#define TEGRA238_RESET_SDMMC4 85
+/* RESERVED 86:90 */
+#define TEGRA238_RESET_SPI1 91
+#define TEGRA238_RESET_SPI2 92
+#define TEGRA238_RESET_SPI3 93
+#define TEGRA238_RESET_SPI4 94
+#define TEGRA238_RESET_TACH0 95
+#define TEGRA238_RESET_TACH1 96
+#define TEGRA238_RESET_SPI5 97
+#define TEGRA238_RESET_TSEC 98
+/* RESERVED 99 */
+#define TEGRA238_RESET_UARTA 100
+#define TEGRA238_RESET_UARTB 101
+#define TEGRA238_RESET_UARTC 102
+#define TEGRA238_RESET_UARTD 103
+#define TEGRA238_RESET_UARTE 104
+#define TEGRA238_RESET_UARTF 105
+/* RESERVED 106 */
+#define TEGRA238_RESET_UARTH 107
+#define TEGRA238_RESET_UFSHC 108
+#define TEGRA238_RESET_UFSHC_AXI_M 109
+#define TEGRA238_RESET_UFSHC_LP_SEQ 110
+#define TEGRA238_RESET_RSVD_111 111
+/* RESERVED 112 */
+#define TEGRA238_RESET_VIC 113
+#define TEGRA238_RESET_XUSB_PADCTL 114
+/* RESERVED 115 */
+#define TEGRA238_RESET_PEX0_CORE_0 116
+#define TEGRA238_RESET_PEX0_CORE_1 117
+#define TEGRA238_RESET_PEX0_CORE_2 118
+#define TEGRA238_RESET_PEX0_CORE_3 119
+/* RESERVED 120 */
+#define TEGRA238_RESET_PEX0_CORE_0_APB 121
+#define TEGRA238_RESET_PEX0_CORE_1_APB 122
+#define TEGRA238_RESET_PEX0_CORE_2_APB 123
+#define TEGRA238_RESET_PEX0_CORE_3_APB 124
+/* RESERVED 125 */
+#define TEGRA238_RESET_PEX0_COMMON_APB 126
+#define TEGRA238_RESET_RSVD_127 127
+/* RESERVED 128:143 */
+#define TEGRA238_RESET_DMIC5 144
+#define TEGRA238_RESET_APE 145
+#define TEGRA238_RESET_PEX_USB_UPHY 146
+#define TEGRA238_RESET_PEX_USB_UPHY_L0 147
+#define TEGRA238_RESET_PEX_USB_UPHY_L1 148
+#define TEGRA238_RESET_PEX_USB_UPHY_L2 149
+#define TEGRA238_RESET_PEX_USB_UPHY_L3 150
+#define TEGRA238_RESET_PEX_USB_UPHY_L4 151
+#define TEGRA238_RESET_PEX_USB_UPHY_L5 152
+#define TEGRA238_RESET_PEX_USB_UPHY_L6 153
+#define TEGRA238_RESET_PEX_USB_UPHY_L7 154
+#define TEGRA238_RESET_PEX_USB_UPHY_PLL0 159
+#define TEGRA238_RESET_PEX_USB_UPHY_PLL1 160
+#define TEGRA238_RESET_PEX_USB_UPHY_PLL2 161
+#define TEGRA238_RESET_PEX_USB_UPHY_PLL3 162
+/* RESERVED 163:173 */
+#define TEGRA238_RESET_FDE 174
+#define TEGRA238_RESET_ADSP_CORE0 175
+#define TEGRA238_RESET_ADSP_CORE1 176
+#define TEGRA238_RESET_ADSP_CORE2 177
+#define TEGRA238_RESET_ADSP_CORE3 178
+#define TEGRA238_RESET_APE_TKE 179
+
+#endif /* DT_BINDINGS_RESET_NVIDIA_TEGRA238_H */
--
2.43.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 2/4] dt-bindings: tegra: Document E2426-1099+E2423-1099 platform
2026-03-25 21:26 [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support Chun Ng
2026-03-25 21:26 ` [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions Chun Ng
@ 2026-03-25 21:26 ` Chun Ng
2026-03-25 21:26 ` [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only Chun Ng
2026-03-25 21:26 ` [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support Chun Ng
3 siblings, 0 replies; 10+ messages in thread
From: Chun Ng @ 2026-03-25 21:26 UTC (permalink / raw)
To: linux-tegra
Cc: devicetree, linux-kernel, robh, krzk+dt, conor+dt, thierry.reding,
jonathanh, chunn, ankitag
Document engineering platform E2426-1099+E2423-1099 for the
Tegra238 SoC.
Signed-off-by: Chun Ng <chunn@nvidia.com>
---
Documentation/devicetree/bindings/arm/tegra.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index 50a31dba7bec..96f19c3ca4a0 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -263,6 +263,10 @@ properties:
- const: nvidia,p3768-0000+p3767-0005
- const: nvidia,p3767-0005
- const: nvidia,tegra234
+ - description: NVIDIA E2426-1099+E2423-1099 Engineering Reference Platform
+ items:
+ - const: nvidia,e2426-1099+e2423-1099
+ - const: nvidia,tegra238
- description: NVIDIA P3971-0089+P3834-0008 Engineering Reference Platform
items:
- const: nvidia,p3971-0089+p3834-0008
--
2.43.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only
2026-03-25 21:26 [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support Chun Ng
2026-03-25 21:26 ` [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions Chun Ng
2026-03-25 21:26 ` [PATCH 2/4] dt-bindings: tegra: Document E2426-1099+E2423-1099 platform Chun Ng
@ 2026-03-25 21:26 ` Chun Ng
2026-03-26 10:22 ` Krzysztof Kozlowski
2026-03-25 21:26 ` [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support Chun Ng
3 siblings, 1 reply; 10+ messages in thread
From: Chun Ng @ 2026-03-25 21:26 UTC (permalink / raw)
To: linux-tegra
Cc: devicetree, linux-kernel, robh, krzk+dt, conor+dt, thierry.reding,
jonathanh, chunn, ankitag
On Tegra238, hsp_top0 mailbox has doorbell plus shared0, while hsp_top1
and aon_hsp mailboxes expose only a single shared interrupt (shared0 and
shared1 respectively) with no doorbell.
Update the schema to support Tegra238 by adding an extra oneOf options for:
- doorbell with one shared interrupt (shared0..shared15)
- single shared interrupt only (no doorbell)
Signed-off-by: Chun Ng <chunn@nvidia.com>
---
.../devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
index f833b845de0d..274480a04c70 100644
--- a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
+++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
@@ -82,6 +82,13 @@ properties:
- items:
- const: doorbell
+ - items:
+ - const: doorbell
+ - pattern: "^shared([0-9]|1[0-5])$"
+
+ - items:
+ - pattern: "^shared([0-9]|1[0-5])$"
+
- items:
- const: doorbell
- pattern: "^shared([0-9]|1[0-5])$"
--
2.43.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support
2026-03-25 21:26 [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support Chun Ng
` (2 preceding siblings ...)
2026-03-25 21:26 ` [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only Chun Ng
@ 2026-03-25 21:26 ` Chun Ng
2026-03-26 10:18 ` Krzysztof Kozlowski
3 siblings, 1 reply; 10+ messages in thread
From: Chun Ng @ 2026-03-25 21:26 UTC (permalink / raw)
To: linux-tegra
Cc: devicetree, linux-kernel, robh, krzk+dt, conor+dt, thierry.reding,
jonathanh, chunn, ankitag
Add the Tegra238 SoC device tree (tegra238.dtsi) and a minimal device
tree for the Tegra238 E2426-1099+E2423-1099 engineering reference
platform. The device-tree is not yet bootable and further enablement
will be added in follow-up patches.
Signed-off-by: Chun Ng <chunn@nvidia.com>
---
arch/arm64/boot/dts/nvidia/Makefile | 2 +
.../nvidia/tegra238-e2426-1099+e2423-1099.dts | 16 ++
arch/arm64/boot/dts/nvidia/tegra238.dtsi | 190 ++++++++++++++++++
3 files changed, 208 insertions(+)
create mode 100644 arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
create mode 100644 arch/arm64/boot/dts/nvidia/tegra238.dtsi
diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
index b139cbd14442..a5357809e222 100644
--- a/arch/arm64/boot/dts/nvidia/Makefile
+++ b/arch/arm64/boot/dts/nvidia/Makefile
@@ -13,6 +13,7 @@ DTC_FLAGS_tegra234-p3737-0000+p3701-0000 := -@
DTC_FLAGS_tegra234-p3740-0002+p3701-0008 := -@
DTC_FLAGS_tegra234-p3768-0000+p3767-0000 := -@
DTC_FLAGS_tegra234-p3768-0000+p3767-0005 := -@
+DTC_FLAGS_tegra238-e2426-1099+e2423-1099 := -@
DTC_FLAGS_tegra264-p3971-0089+p3834-0008 := -@
dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
@@ -34,4 +35,5 @@ dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3737-0000+p3701-0008.dtb
dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3740-0002+p3701-0008.dtb
dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3768-0000+p3767-0000.dtb
dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3768-0000+p3767-0005.dtb
+dtb-$(CONFIG_ARCH_TEGRA_238_SOC) += tegra238-e2426-1099+e2423-1099.dtb
dtb-$(CONFIG_ARCH_TEGRA_264_SOC) += tegra264-p3971-0089+p3834-0008.dtb
diff --git a/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts b/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
new file mode 100644
index 000000000000..d69ea2114e23
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+/dts-v1/;
+
+#include "tegra238.dtsi"
+
+/ {
+ model = "NVIDIA Tegra238 E2426-1099+E2423-1099";
+ compatible = "nvidia,e2426-1099+e2423-1099", "nvidia,tegra238";
+
+ bus@0 {
+ uarta: serial@3100000 {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/nvidia/tegra238.dtsi b/arch/arm64/boot/dts/nvidia/tegra238.dtsi
new file mode 100644
index 000000000000..0570c3b20e62
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra238.dtsi
@@ -0,0 +1,190 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+#include <dt-bindings/clock/nvidia,tegra238.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/mailbox/tegra186-hsp.h>
+#include <dt-bindings/reset/nvidia,tegra238.h>
+
+/ {
+ compatible = "nvidia,tegra238";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ bus@0 {
+ compatible = "simple-bus";
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0x0 0x0 0x80000000>;
+
+ uarta: serial@3100000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0x3100000 0x0 0x10000>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA238_CLK_UARTA>,
+ <&bpmp TEGRA238_CLK_PLLP_OUT0>;
+ clock-names = "uartclk", "apb_pclk";
+ assigned-clocks = <&bpmp TEGRA238_CLK_UARTA>;
+ assigned-clock-parents = <&bpmp TEGRA238_CLK_PLLP_OUT0>;
+ resets = <&bpmp TEGRA238_RESET_UARTA>;
+ arm,primecell-periphid = <0x00051011>;
+ status = "disabled";
+ };
+
+ fuse@3810000 {
+ compatible = "nvidia,tegra234-efuse";
+ reg = <0x0 0x03810000 0x0 0x19000>;
+ clocks = <&bpmp TEGRA238_CLK_FUSE>;
+ clock-names = "fuse";
+ };
+
+ hsp_top0: tegra-hsp@3c00000 {
+ compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
+ reg = <0x0 0x03c00000 0x0 0x000a0000>;
+ interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "doorbell", "shared0";
+ #mbox-cells = <2>;
+ };
+
+ hsp_top1: tegra-hsp@3d00000 {
+ compatible = "nvidia,tegra186-hsp";
+ reg = <0x0 0x03d00000 0x0 0x000a0000>;
+ interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "shared0";
+ #mbox-cells = <2>;
+ };
+
+ aon_hsp: tegra-hsp@c150000 {
+ compatible = "nvidia,tegra186-hsp";
+ reg = <0x0 0x0c150000 0x0 0x00090000>;
+ interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "shared1";
+ };
+
+ gic: interrupt-controller@f400000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ #redistributor-regions = <1>;
+ interrupt-controller;
+ reg = <0x0 0x0f400000 0x0 0x00010000 /* GICD */
+ 0x0 0x0f440000 0x0 0x00200000>; /* GICR CPU 0-15 */
+ };
+
+ sram@40000000 {
+ compatible = "nvidia,tegra234-sysram", "mmio-sram";
+ reg = <0x0 0x40000000 0x0 0x72000>;
+ ranges = <0x0 0x0 0x40000000 0x72000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ no-memory-wc;
+
+ cpu_bpmp_tx: sram@70000 {
+ reg = <0x70000 0x1000>;
+ label = "cpu-bpmp-tx";
+ pool;
+ };
+
+ cpu_bpmp_rx: sram@71000 {
+ reg = <0x71000 0x1000>;
+ label = "cpu-bpmp-rx";
+ pool;
+ };
+ };
+ };
+
+ bpmp: bpmp {
+ compatible = "nvidia,tegra234-bpmp", "nvidia,tegra186-bpmp";
+ mboxes = <&hsp_top0 TEGRA_HSP_MBOX_TYPE_DB TEGRA_HSP_DB_MASTER_BPMP>;
+ shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+
+ bpmp_i2c: i2c {
+ compatible = "nvidia,tegra186-bpmp-i2c";
+ nvidia,bpmp-bus-id = <5>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0_0: cpu@0 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x000>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_1: cpu@1 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x100>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_2: cpu@2 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x200>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_3: cpu@3 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x300>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_4: cpu@4 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x400>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_5: cpu@5 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x500>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_6: cpu@6 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x600>;
+
+ enable-method = "psci";
+ };
+
+ cpu0_7: cpu@7 {
+ compatible = "arm,armv8";
+ device_type = "cpu";
+ reg = <0x700>;
+
+ enable-method = "psci";
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+};
--
2.43.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support
2026-03-25 21:26 ` [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support Chun Ng
@ 2026-03-26 10:18 ` Krzysztof Kozlowski
2026-03-26 11:03 ` Thierry Reding
0 siblings, 1 reply; 10+ messages in thread
From: Krzysztof Kozlowski @ 2026-03-26 10:18 UTC (permalink / raw)
To: Chun Ng
Cc: linux-tegra, devicetree, linux-kernel, robh, krzk+dt, conor+dt,
thierry.reding, jonathanh, ankitag
On Wed, Mar 25, 2026 at 09:26:28PM +0000, Chun Ng wrote:
> Add the Tegra238 SoC device tree (tegra238.dtsi) and a minimal device
> tree for the Tegra238 E2426-1099+E2423-1099 engineering reference
> platform. The device-tree is not yet bootable and further enablement
Then drop it. If this cannot be booted then it is pointless in the
kernel, no benefit, no one can ever use it.
> will be added in follow-up patches.
>
> Signed-off-by: Chun Ng <chunn@nvidia.com>
> ---
> arch/arm64/boot/dts/nvidia/Makefile | 2 +
> .../nvidia/tegra238-e2426-1099+e2423-1099.dts | 16 ++
> arch/arm64/boot/dts/nvidia/tegra238.dtsi | 190 ++++++++++++++++++
> 3 files changed, 208 insertions(+)
> create mode 100644 arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
> create mode 100644 arch/arm64/boot/dts/nvidia/tegra238.dtsi
>
> diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
> index b139cbd14442..a5357809e222 100644
> --- a/arch/arm64/boot/dts/nvidia/Makefile
> +++ b/arch/arm64/boot/dts/nvidia/Makefile
> @@ -13,6 +13,7 @@ DTC_FLAGS_tegra234-p3737-0000+p3701-0000 := -@
> DTC_FLAGS_tegra234-p3740-0002+p3701-0008 := -@
> DTC_FLAGS_tegra234-p3768-0000+p3767-0000 := -@
> DTC_FLAGS_tegra234-p3768-0000+p3767-0005 := -@
> +DTC_FLAGS_tegra238-e2426-1099+e2423-1099 := -@
> DTC_FLAGS_tegra264-p3971-0089+p3834-0008 := -@
>
> dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
> @@ -34,4 +35,5 @@ dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3737-0000+p3701-0008.dtb
> dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3740-0002+p3701-0008.dtb
> dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3768-0000+p3767-0000.dtb
> dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3768-0000+p3767-0005.dtb
> +dtb-$(CONFIG_ARCH_TEGRA_238_SOC) += tegra238-e2426-1099+e2423-1099.dtb
> dtb-$(CONFIG_ARCH_TEGRA_264_SOC) += tegra264-p3971-0089+p3834-0008.dtb
> diff --git a/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts b/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
> new file mode 100644
> index 000000000000..d69ea2114e23
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +
> +/dts-v1/;
> +
> +#include "tegra238.dtsi"
> +
> +/ {
> + model = "NVIDIA Tegra238 E2426-1099+E2423-1099";
> + compatible = "nvidia,e2426-1099+e2423-1099", "nvidia,tegra238";
> +
> + bus@0 {
> + uarta: serial@3100000 {
> + status = "okay";
> + };
> + };
> +};
> diff --git a/arch/arm64/boot/dts/nvidia/tegra238.dtsi b/arch/arm64/boot/dts/nvidia/tegra238.dtsi
> new file mode 100644
> index 000000000000..0570c3b20e62
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nvidia/tegra238.dtsi
> @@ -0,0 +1,190 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +
> +#include <dt-bindings/clock/nvidia,tegra238.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/mailbox/tegra186-hsp.h>
> +#include <dt-bindings/reset/nvidia,tegra238.h>
> +
> +/ {
> + compatible = "nvidia,tegra238";
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + bus@0 {
> + compatible = "simple-bus";
> +
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges = <0x0 0x0 0x0 0x0 0x0 0x80000000>;
> +
> + uarta: serial@3100000 {
> + compatible = "arm,pl011", "arm,primecell";
> + reg = <0x0 0x3100000 0x0 0x10000>;
> + interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&bpmp TEGRA238_CLK_UARTA>,
> + <&bpmp TEGRA238_CLK_PLLP_OUT0>;
> + clock-names = "uartclk", "apb_pclk";
> + assigned-clocks = <&bpmp TEGRA238_CLK_UARTA>;
> + assigned-clock-parents = <&bpmp TEGRA238_CLK_PLLP_OUT0>;
> + resets = <&bpmp TEGRA238_RESET_UARTA>;
> + arm,primecell-periphid = <0x00051011>;
> + status = "disabled";
> + };
> +
> + fuse@3810000 {
> + compatible = "nvidia,tegra234-efuse";
> + reg = <0x0 0x03810000 0x0 0x19000>;
> + clocks = <&bpmp TEGRA238_CLK_FUSE>;
> + clock-names = "fuse";
> + };
> +
> + hsp_top0: tegra-hsp@3c00000 {
> + compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
DTSI says 238, compatible says 234.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions
2026-03-25 21:26 ` [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions Chun Ng
@ 2026-03-26 10:19 ` Krzysztof Kozlowski
0 siblings, 0 replies; 10+ messages in thread
From: Krzysztof Kozlowski @ 2026-03-26 10:19 UTC (permalink / raw)
To: Chun Ng
Cc: linux-tegra, devicetree, linux-kernel, robh, krzk+dt, conor+dt,
thierry.reding, jonathanh, ankitag
On Wed, Mar 25, 2026 at 09:26:25PM +0000, Chun Ng wrote:
> Add device tree binding headers for Tegra238 that define the clock and
> reset resource IDs used by the BPMP firmware. The IDs are defined by
> hardware and are not software enumerations; 0 is reserved, so numbering
> starts at 1. The reset header documents reserved ID ranges where no
> reset line is present.
>
> Signed-off-by: Chun Ng <chunn@nvidia.com>
> ---
> include/dt-bindings/clock/nvidia,tegra238.h | 279 ++++++++++++++++++++
> include/dt-bindings/reset/nvidia,tegra238.h | 125 +++++++++
Where is the bindings change with compatible?
You have entire commit msg to explain unusual things. Or cover letter -
nothing useful there.
> 2 files changed, 404 insertions(+)
> create mode 100644 include/dt-bindings/clock/nvidia,tegra238.h
> create mode 100644 include/dt-bindings/reset/nvidia,tegra238.h
So how can I verify that this matches compatible?
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only
2026-03-25 21:26 ` [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only Chun Ng
@ 2026-03-26 10:22 ` Krzysztof Kozlowski
0 siblings, 0 replies; 10+ messages in thread
From: Krzysztof Kozlowski @ 2026-03-26 10:22 UTC (permalink / raw)
To: Chun Ng
Cc: linux-tegra, devicetree, linux-kernel, robh, krzk+dt, conor+dt,
thierry.reding, jonathanh, ankitag
On Wed, Mar 25, 2026 at 09:26:27PM +0000, Chun Ng wrote:
> On Tegra238, hsp_top0 mailbox has doorbell plus shared0, while hsp_top1
> and aon_hsp mailboxes expose only a single shared interrupt (shared0 and
> shared1 respectively) with no doorbell.
>
> Update the schema to support Tegra238 by adding an extra oneOf options for:
NAK, there is no Tegra238 in that file nor in youro diff. Just open it
and look around.
> - doorbell with one shared interrupt (shared0..shared15)
> - single shared interrupt only (no doorbell)
>
> Signed-off-by: Chun Ng <chunn@nvidia.com>
> ---
> .../devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
> index f833b845de0d..274480a04c70 100644
> --- a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
> +++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
> @@ -82,6 +82,13 @@ properties:
> - items:
> - const: doorbell
>
> + - items:
> + - const: doorbell
> + - pattern: "^shared([0-9]|1[0-5])$"
Here and...
> +
> + - items:
> + - pattern: "^shared([0-9]|1[0-5])$"
here: Commit msg says shared0, here you say up to shared15.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support
2026-03-26 10:18 ` Krzysztof Kozlowski
@ 2026-03-26 11:03 ` Thierry Reding
2026-03-26 11:12 ` Krzysztof Kozlowski
0 siblings, 1 reply; 10+ messages in thread
From: Thierry Reding @ 2026-03-26 11:03 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Chun Ng, linux-tegra, devicetree, linux-kernel, robh, krzk+dt,
conor+dt, thierry.reding, jonathanh, ankitag
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On Thu, Mar 26, 2026 at 11:18:17AM +0100, Krzysztof Kozlowski wrote:
> On Wed, Mar 25, 2026 at 09:26:28PM +0000, Chun Ng wrote:
> > Add the Tegra238 SoC device tree (tegra238.dtsi) and a minimal device
> > tree for the Tegra238 E2426-1099+E2423-1099 engineering reference
> > platform. The device-tree is not yet bootable and further enablement
>
> Then drop it. If this cannot be booted then it is pointless in the
> kernel, no benefit, no one can ever use it.
The purpose of this series is to establish a common baseline that people
can use to work on top off. We expect the non-bootable state to be very
temporary, but for practical reasons I want to get this merged so we can
make quicker progress.
[...]
> > + hsp_top0: tegra-hsp@3c00000 {
> > + compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
>
> DTSI says 238, compatible says 234.
Tegra238 is a derivative of Tegra234, so there's even more similarities
than we typically have across generational gaps. Your recent comments
suggested that you'd like to see new compatible strings no matter how
minimal (or even non-existent) the differences might be, so I suppose we
could prepend a Tegra238-specific compatible to this.
Thierry
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^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support
2026-03-26 11:03 ` Thierry Reding
@ 2026-03-26 11:12 ` Krzysztof Kozlowski
0 siblings, 0 replies; 10+ messages in thread
From: Krzysztof Kozlowski @ 2026-03-26 11:12 UTC (permalink / raw)
To: Thierry Reding
Cc: Chun Ng, linux-tegra, devicetree, linux-kernel, robh, krzk+dt,
conor+dt, thierry.reding, jonathanh, ankitag
On 26/03/2026 12:03, Thierry Reding wrote:
> On Thu, Mar 26, 2026 at 11:18:17AM +0100, Krzysztof Kozlowski wrote:
>> On Wed, Mar 25, 2026 at 09:26:28PM +0000, Chun Ng wrote:
>>> Add the Tegra238 SoC device tree (tegra238.dtsi) and a minimal device
>>> tree for the Tegra238 E2426-1099+E2423-1099 engineering reference
>>> platform. The device-tree is not yet bootable and further enablement
>>
>> Then drop it. If this cannot be booted then it is pointless in the
>> kernel, no benefit, no one can ever use it.
>
> The purpose of this series is to establish a common baseline that people
> can use to work on top off. We expect the non-bootable state to be very
> temporary, but for practical reasons I want to get this merged so we can
> make quicker progress.
If this cannot be booted, then there are no practical reasons - no one
will be able to develop on top of it.
The only way anyone could use it is to have additional patch on top, to
make it booting. Thus if you have already patches on top, which you need
to share with every team/person, then you can as well share this one.
What is the benefit for the community of having this patch in the kernel?
=
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2026-03-26 11:12 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-03-25 21:26 [PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support Chun Ng
2026-03-25 21:26 ` [PATCH 1/4] dt-bindings: tegra: Add Tegra238 clock and reset definitions Chun Ng
2026-03-26 10:19 ` Krzysztof Kozlowski
2026-03-25 21:26 ` [PATCH 2/4] dt-bindings: tegra: Document E2426-1099+E2423-1099 platform Chun Ng
2026-03-25 21:26 ` [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only Chun Ng
2026-03-26 10:22 ` Krzysztof Kozlowski
2026-03-25 21:26 ` [PATCH 4/4] arm64: tegra: add e2426-1099+e2423-1099 support Chun Ng
2026-03-26 10:18 ` Krzysztof Kozlowski
2026-03-26 11:03 ` Thierry Reding
2026-03-26 11:12 ` Krzysztof Kozlowski
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