1 * Renesas Multi Media Card Interface (MMCIF) Controller
3 This file documents differences between the core properties in mmc.txt
4 and the properties used by the MMCIF device.
9 - compatible: should be "renesas,mmcif-<soctype>", "renesas,sh-mmcif" as a
10 fallback. Examples with <soctype> are:
11 - "renesas,mmcif-r7s72100" for the MMCIF found in r7s72100 SoCs
12 - "renesas,mmcif-r8a73a4" for the MMCIF found in r8a73a4 SoCs
13 - "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
14 - "renesas,mmcif-r8a7742" for the MMCIF found in r8a7742 SoCs
15 - "renesas,mmcif-r8a7743" for the MMCIF found in r8a7743 SoCs
16 - "renesas,mmcif-r8a7744" for the MMCIF found in r8a7744 SoCs
17 - "renesas,mmcif-r8a7745" for the MMCIF found in r8a7745 SoCs
18 - "renesas,mmcif-r8a7778" for the MMCIF found in r8a7778 SoCs
19 - "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
20 - "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
21 - "renesas,mmcif-r8a7793" for the MMCIF found in r8a7793 SoCs
22 - "renesas,mmcif-r8a7794" for the MMCIF found in r8a7794 SoCs
23 - "renesas,mmcif-sh73a0" for the MMCIF found in sh73a0 SoCs
25 - interrupts: Some SoCs have only 1 shared interrupt, while others have either
26 2 or 3 individual interrupts (error, int, card detect). Below is the number
27 of interrupts for each SoC:
28 1: r8a73a4, r8a7742, r8a7743, r8a7744, r8a7745, r8a7778, r8a7790, r8a7791,
33 - clocks: reference to the functional clock
35 - dmas: reference to the DMA channels, one per channel name listed in the
37 - dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
39 - max-frequency: Maximum operating clock frequency, driver uses default clock
40 frequency if it is not set.
43 Example: R8A7790 (R-Car H2) MMCIF0
45 mmcif0: mmc@ee200000 {
46 compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif";
47 reg = <0 0xee200000 0 0x80>;
48 interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
49 clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
50 dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
51 dma-names = "tx", "rx";
52 max-frequency = <97500000>;