| * Toshiba Mobile IO SD/MMC controller |
| |
| The tmio-mmc driver doesn't probe its devices actively, instead its binding to |
| devices is managed by either MFD drivers or by the sh_mobile_sdhi platform |
| driver. Those drivers supply the tmio-mmc driver with platform data, that either |
| describe hardware capabilities, known to them, or are obtained by them from |
| their own platform data or from their DT information. In the latter case all |
| compulsory and any optional properties, common to all SD/MMC drivers, as |
| described in mmc.txt, can be used. Additionally the following tmio_mmc-specific |
| optional bindings can be used. |
| |
| Required properties: |
| - compatible: "renesas,sdhi-shmobile" - a generic sh-mobile SDHI unit |
| "renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC |
| "renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC |
| "renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC |
| "renesas,sdhi-r8a7740" - SDHI IP on R8A7740 SoC |
| "renesas,sdhi-r8a7778" - SDHI IP on R8A7778 SoC |
| "renesas,sdhi-r8a7779" - SDHI IP on R8A7779 SoC |
| "renesas,sdhi-r8a7790" - SDHI IP on R8A7790 SoC |
| "renesas,sdhi-r8a7791" - SDHI IP on R8A7791 SoC |
| "renesas,sdhi-r8a7792" - SDHI IP on R8A7792 SoC |
| "renesas,sdhi-r8a7793" - SDHI IP on R8A7793 SoC |
| "renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC |
| "renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC |
| "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC |
| |
| - clocks: Most controllers only have 1 clock source per channel. However, on |
| some variations of this controller, the internal card detection |
| logic that exists in this controller is sectioned off to be run by a |
| separate second clock source to allow the main core clock to be turned |
| off to save power. |
| If 2 clocks are specified by the hardware, you must name them as |
| "core" and "cd". If the controller only has 1 clock, naming is not |
| required. |
| Below is the number clocks for each supported SoC: |
| 1: SH73A0, R8A73A4, R8A7740, R8A7778, R8A7779, R8A7790 |
| R8A7791, R8A7792, R8A7793, R8A7794, R8A7795, R8A7796 |
| 2: R7S72100 |
| |
| Optional properties: |
| - toshiba,mmc-wrprotect-disable: write-protect detection is unavailable |
| - pinctrl-names: should be "default", "state_uhs" |
| - pinctrl-0: should contain default/high speed pin ctrl |
| - pinctrl-1: should contain uhs mode pin ctrl |
