On Thu, 23 Jul 2020 at 23:08, <rentao.bupt at gmail.com> wrote:
>
> From: Tao Ren <rentao.bupt at gmail.com>
>
> Create all the i2c switches in device tree and use aliases to assign
> child channels with consistent bus numbers.
>
> Besides, "i2c-mux-idle-disconnect" is set for all the i2c switches to
> avoid potential conflicts when multiple devices (beind the switches)
> use the same device address.
>
> Signed-off-by: Tao Ren <rentao.bupt at gmail.com>
Reviewed-by: Joel Stanley <joel at jms.id.au>
I have merged this patch into the aspeed dt-for-5.9 branch.
Cheers,
Joel
> ---
> Changes in v2:
> - Nothing changed. Resending the patch just in case the previous
> email was not delivered.
>
> arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts | 1231 ++++++++++++++++-
> 1 file changed, 1228 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts
> index 016bbcb99bb6..7bc7df7ed428 100644
> --- a/arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts
> +++ b/arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts
> @@ -19,8 +19,8 @@
> serial3 = &uart4;
>
> /*
> - * Hardcode the bus number of i2c switches' channels to
> - * avoid breaking the legacy applications.
> + * PCA9548 (1-0077) provides 8 channels for connecting to
> + * 4 Line Cards and 4 Fabric Cards.
> */
> i2c16 = &imux16;
> i2c17 = &imux17;
> @@ -30,6 +30,11 @@
> i2c21 = &imux21;
> i2c22 = &imux22;
> i2c23 = &imux23;
> +
> + /*
> + * PCA9548 (2-0071) provides 8 channels for connecting to
> + * Power Distribution Board.
> + */
> i2c24 = &imux24;
> i2c25 = &imux25;
> i2c26 = &imux26;
> @@ -38,6 +43,11 @@
> i2c29 = &imux29;
> i2c30 = &imux30;
> i2c31 = &imux31;
> +
> + /*
> + * PCA9548 (8-0077) provides 8 channels and the first 4
> + * channels are connecting to 4 Fan Control Boards.
> + */
> i2c32 = &imux32;
> i2c33 = &imux33;
> i2c34 = &imux34;
> @@ -46,6 +56,226 @@
> i2c37 = &imux37;
> i2c38 = &imux38;
> i2c39 = &imux39;
> +
> + /*
> + * 2 PCA9548 (18-0070 & 18-0073), 16 channels connecting
> + * to Line Card #1.
> + */
> + i2c40 = &imux40;
> + i2c41 = &imux41;
> + i2c42 = &imux42;
> + i2c43 = &imux43;
> + i2c44 = &imux44;
> + i2c45 = &imux45;
> + i2c46 = &imux46;
> + i2c47 = &imux47;
> + i2c48 = &imux48;
> + i2c49 = &imux49;
> + i2c50 = &imux50;
> + i2c51 = &imux51;
> + i2c52 = &imux52;
> + i2c53 = &imux53;
> + i2c54 = &imux54;
> + i2c55 = &imux55;
> +
> + /*
> + * 2 PCA9548 (19-0070 & 19-0073), 16 channels connecting
> + * to Line Card #2.
> + */
> + i2c56 = &imux56;
> + i2c57 = &imux57;
> + i2c58 = &imux58;
> + i2c59 = &imux59;
> + i2c60 = &imux60;
> + i2c61 = &imux61;
> + i2c62 = &imux62;
> + i2c63 = &imux63;
> + i2c64 = &imux64;
> + i2c65 = &imux65;
> + i2c66 = &imux66;
> + i2c67 = &imux67;
> + i2c68 = &imux68;
> + i2c69 = &imux69;
> + i2c70 = &imux70;
> + i2c71 = &imux71;
> +
> + /*
> + * 2 PCA9548 (20-0070 & 20-0073), 16 channels connecting
> + * to Line Card #3.
> + */
> + i2c72 = &imux72;
> + i2c73 = &imux73;
> + i2c74 = &imux74;
> + i2c75 = &imux75;
> + i2c76 = &imux76;
> + i2c77 = &imux77;
> + i2c78 = &imux78;
> + i2c79 = &imux79;
> + i2c80 = &imux80;
> + i2c81 = &imux81;
> + i2c82 = &imux82;
> + i2c83 = &imux83;
> + i2c84 = &imux84;
> + i2c85 = &imux85;
> + i2c86 = &imux86;
> + i2c87 = &imux87;
> +
> + /*
> + * 2 PCA9548 (21-0070 & 21-0073), 16 channels connecting
> + * to Line Card #4.
> + */
> + i2c88 = &imux88;
> + i2c89 = &imux89;
> + i2c90 = &imux90;
> + i2c91 = &imux91;
> + i2c92 = &imux92;
> + i2c93 = &imux93;
> + i2c94 = &imux94;
> + i2c95 = &imux95;
> + i2c96 = &imux96;
> + i2c97 = &imux97;
> + i2c98 = &imux98;
> + i2c99 = &imux99;
> + i2c100 = &imux100;
> + i2c101 = &imux101;
> + i2c102 = &imux102;
> + i2c103 = &imux103;
> +
> + /*
> + * 2 PCA9548 (16-0070 & 16-0073), 16 channels connecting
> + * to Fabric Card #1.
> + */
> + i2c104 = &imux104;
> + i2c105 = &imux105;
> + i2c106 = &imux106;
> + i2c107 = &imux107;
> + i2c108 = &imux108;
> + i2c109 = &imux109;
> + i2c110 = &imux110;
> + i2c111 = &imux111;
> + i2c112 = &imux112;
> + i2c113 = &imux113;
> + i2c114 = &imux114;
> + i2c115 = &imux115;
> + i2c116 = &imux116;
> + i2c117 = &imux117;
> + i2c118 = &imux118;
> + i2c119 = &imux119;
> +
> + /*
> + * 2 PCA9548 (17-0070 & 17-0073), 16 channels connecting
> + * to Fabric Card #2.
> + */
> + i2c120 = &imux120;
> + i2c121 = &imux121;
> + i2c122 = &imux122;
> + i2c123 = &imux123;
> + i2c124 = &imux124;
> + i2c125 = &imux125;
> + i2c126 = &imux126;
> + i2c127 = &imux127;
> + i2c128 = &imux128;
> + i2c129 = &imux129;
> + i2c130 = &imux130;
> + i2c131 = &imux131;
> + i2c132 = &imux132;
> + i2c133 = &imux133;
> + i2c134 = &imux134;
> + i2c135 = &imux135;
> +
> + /*
> + * 2 PCA9548 (22-0070 & 22-0073), 16 channels connecting
> + * to Fabric Card #3.
> + */
> + i2c136 = &imux136;
> + i2c137 = &imux137;
> + i2c138 = &imux138;
> + i2c139 = &imux139;
> + i2c140 = &imux140;
> + i2c141 = &imux141;
> + i2c142 = &imux142;
> + i2c143 = &imux143;
> + i2c144 = &imux144;
> + i2c145 = &imux145;
> + i2c146 = &imux146;
> + i2c147 = &imux147;
> + i2c148 = &imux148;
> + i2c149 = &imux149;
> + i2c150 = &imux150;
> + i2c151 = &imux151;
> +
> + /*
> + * 2 PCA9548 (23-0070 & 23-0073), 16 channels connecting
> + * to Fabric Card #4.
> + */
> + i2c152 = &imux152;
> + i2c153 = &imux153;
> + i2c154 = &imux154;
> + i2c155 = &imux155;
> + i2c156 = &imux156;
> + i2c157 = &imux157;
> + i2c158 = &imux158;
> + i2c159 = &imux159;
> + i2c160 = &imux160;
> + i2c161 = &imux161;
> + i2c162 = &imux162;
> + i2c163 = &imux163;
> + i2c164 = &imux164;
> + i2c165 = &imux165;
> + i2c166 = &imux166;
> + i2c167 = &imux167;
> +
> + /*
> + * PCA9548 (32-0070), 8 channels connecting to Fan Control
> + # Board #1.
> + */
> + i2c168 = &imux168;
> + i2c169 = &imux169;
> + i2c170 = &imux170;
> + i2c171 = &imux171;
> + i2c172 = &imux172;
> + i2c173 = &imux173;
> + i2c174 = &imux174;
> + i2c175 = &imux175;
> +
> + /*
> + * PCA9548 (33-0070), 8 channels connecting to Fan Control
> + # Board #2.
> + */
> + i2c176 = &imux176;
> + i2c177 = &imux177;
> + i2c178 = &imux178;
> + i2c179 = &imux179;
> + i2c180 = &imux180;
> + i2c181 = &imux181;
> + i2c182 = &imux182;
> + i2c183 = &imux183;
> +
> + /*
> + * PCA9548 (34-0070), 8 channels connecting to Fan Control
> + # Board #3.
> + */
> + i2c184 = &imux184;
> + i2c185 = &imux185;
> + i2c186 = &imux186;
> + i2c187 = &imux187;
> + i2c188 = &imux188;
> + i2c189 = &imux189;
> + i2c190 = &imux190;
> + i2c191 = &imux191;
> +
> + /*
> + * PCA9548 (35-0070), 8 channels connecting to Fan Control
> + # Board #4.
> + */
> + i2c192 = &imux192;
> + i2c193 = &imux193;
> + i2c194 = &imux194;
> + i2c195 = &imux195;
> + i2c196 = &imux196;
> + i2c197 = &imux197;
> + i2c198 = &imux198;
> + i2c199 = &imux199;
> };
>
> chosen {
> @@ -103,53 +333,846 @@
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0x77>;
> + i2c-mux-idle-disconnect;
>
> + /* To Fabric Card #1 */
> imux16: i2c at 0 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux104: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux105: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux106: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux107: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux108: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux109: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux110: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux111: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux112: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux113: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux114: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux115: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux116: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux117: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux118: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux119: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fabric Card #2 */
> imux17: i2c at 1 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <1>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux120: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux121: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux122: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux123: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux124: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux125: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux126: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux127: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux128: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux129: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux130: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux131: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux132: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux133: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux134: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux135: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Line Card #1 */
> imux18: i2c at 2 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <2>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux40: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux41: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux42: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux43: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux44: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux45: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux46: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux47: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux48: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux49: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux50: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux51: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux52: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux53: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux54: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux55: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Line Card #2 */
> imux19: i2c at 3 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <3>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux56: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux57: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux58: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux59: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux60: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux61: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux62: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux63: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux64: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux65: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux66: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux67: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux68: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux69: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux70: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux71: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To LC3 SCM */
> imux20: i2c at 4 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <4>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux72: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux73: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux74: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux75: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux76: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux77: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux78: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux79: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux80: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux81: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux82: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux83: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux84: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux85: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux86: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux87: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Line Card #4 */
> imux21: i2c at 5 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <5>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux88: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux89: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux90: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux91: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux92: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux93: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux94: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux95: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux96: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux97: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux98: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux99: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux100: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux101: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux102: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux103: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fabric Card #3 */
> imux22: i2c at 6 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <6>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux136: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux137: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux138: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux139: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux140: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux141: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux142: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux143: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux144: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux145: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux146: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux147: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux148: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux149: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux150: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux151: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fabric Card #4 */
> imux23: i2c at 7 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <7>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux152: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux153: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux154: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux155: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux156: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux157: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux158: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux159: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> +
> + i2c-switch at 73 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x73>;
> + i2c-mux-idle-disconnect;
> +
> + imux160: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux161: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux162: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux163: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux164: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux165: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux166: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux167: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
> };
> };
> @@ -165,6 +1188,7 @@
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0x71>;
> + i2c-mux-idle-disconnect;
>
> imux24: i2c at 0 {
> #address-cells = <1>;
> @@ -252,7 +1276,7 @@
> };
>
> /*
> - * I2C bus to Fan Control Board.
> + * I2C bus to Fan Control Boards.
> */
> &i2c8 {
> status = "okay";
> @@ -262,29 +1286,230 @@
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0x77>;
> + i2c-mux-idle-disconnect;
>
> + /* To Fan Control Board #1 */
> imux32: i2c at 0 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux168: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux169: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux170: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux171: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux172: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux173: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux174: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux175: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fan Control Board #2 */
> imux33: i2c at 1 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <1>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux176: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux177: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux178: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux179: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux180: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux181: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux182: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux183: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fan Control Board #3 */
> imux34: i2c at 2 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <2>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux184: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux185: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux186: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux187: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux188: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux189: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux190: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux191: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> + /* To Fan Control Board #4 */
> imux35: i2c at 3 {
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <3>;
> +
> + i2c-switch at 70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
> + i2c-mux-idle-disconnect;
> +
> + imux192: i2c at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> + };
> + imux193: i2c at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + imux194: i2c at 2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> + };
> + imux195: i2c at 3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> + };
> + imux196: i2c at 4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <4>;
> + };
> + imux197: i2c at 5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <5>;
> + };
> + imux198: i2c at 6 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <6>;
> + };
> + imux199: i2c at 7 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <7>;
> + };
> + };
> };
>
> imux36: i2c at 4 {
> --
> 2.17.1
>