diff options
| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2025-09-10 21:41:22 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-15 17:44:35 -0700 |
| commit | 8c01cc2382bc351672c8eb946c16f567cfffef60 (patch) | |
| tree | b1c286780311c8dc37a1db6c8f3505dc0684e250 /include/dt-bindings | |
| parent | Merge branch 'accecn-protocol-patch-series' (diff) | |
| download | linux-8c01cc2382bc351672c8eb946c16f567cfffef60.tar.gz linux-8c01cc2382bc351672c8eb946c16f567cfffef60.zip | |
dt-bindings: net: pcs: renesas,rzn1-miic: Add RZ/T2H and RZ/N2H support
Add device tree binding support for RZ/T2H and RZ/N2H SoCs to the
existing RZ/N1 MIIC converter binding. These SoCs share similar MIIC
functionality but have architectural differences that require schema
updates.
Add new compatible strings "renesas,r9a09g077-miic" for RZ/T2H and
"renesas,r9a09g087-miic" for RZ/N2H, with the latter falling back to
the RZ/T2H variant. The new SoCs require reset support with two reset
lines for converter register reset and converter reset, which are not
present on RZ/N1.
Update port configurations to accommodate the different architectures.
RZ/N1 supports 5 ports numbered 1-5 with complex input mappings
covering indices 0-13, while RZ/T2H and RZ/N2H support 4 ports
numbered 0-3 with simplified input mappings covering indices 0-8.
Extend the switch port configuration property to support value 0 for
the new SoCs.
Add a new dt-bindings header file with media interface connection
matrix constants that map GMAC, ESC, and ETHSW ports to numeric
identifiers for use with RZ/T2H and RZ/N2H device trees.
Update DT schema validation to ensure proper port numbering and input
mappings per SoC variant.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250910204132.319975-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/net/renesas,r9a09g077-pcs-miic.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/dt-bindings/net/renesas,r9a09g077-pcs-miic.h b/include/dt-bindings/net/renesas,r9a09g077-pcs-miic.h new file mode 100644 index 000000000000..43a2b5743a63 --- /dev/null +++ b/include/dt-bindings/net/renesas,r9a09g077-pcs-miic.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright (C) 2025 Renesas Electronics Corporation. + */ + +#ifndef _DT_BINDINGS_RENASAS_R9A09G077_PCS_MIIC_H +#define _DT_BINDINGS_RENASAS_R9A09G077_PCS_MIIC_H + +/* + * Media Interface Connection Matrix + * =========================================================== + * + * Selects the function of the Media interface of the MAC to be used + * + * SW_MODE[2:0] | Port 0 | Port 1 | Port 2 | Port 3 + * -------------|-------------|-------------|-------------|------------- + * 000b | ETHSW Port0 | ETHSW Port1 | ETHSW Port2 | GMAC1 + * 001b | ESC Port0 | ESC Port1 | GMAC2 | GMAC1 + * 010b | ESC Port0 | ESC Port1 | ETHSW Port2 | GMAC1 + * 011b | ESC Port0 | ESC Port1 | ESC Port2 | GMAC1 + * 100b | ETHSW Port0 | ESC Port1 | ESC Port2 | GMAC1 + * 101b | ETHSW Port0 | ESC Port1 | ETHSW Port2 | GMAC1 + * 110b | ETHSW Port0 | ETHSW Port1 | GMAC2 | GMAC1 + * 111b | GMAC0 | GMAC1 | GMAC2 | - + */ +#define ETHSS_GMAC0_PORT 0 +#define ETHSS_GMAC1_PORT 1 +#define ETHSS_GMAC2_PORT 2 +#define ETHSS_ESC_PORT0 3 +#define ETHSS_ESC_PORT1 4 +#define ETHSS_ESC_PORT2 5 +#define ETHSS_ETHSW_PORT0 6 +#define ETHSS_ETHSW_PORT1 7 +#define ETHSS_ETHSW_PORT2 8 + +#endif |