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Message-Id: <20200701223347.31717-1-rentao.bupt@gmail.com>
Date: Wed, 1 Jul 2020 15:33:47 -0700
From: rentao.bupt@...il.com
To: Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
openbmc@...ts.ozlabs.org, taoren@...com
Cc: Tao Ren <rentao.bupt@...il.com>
Subject: [PATCH] ARM: dts: aspeed: cmm: fixup i2c tree
From: Tao Ren <rentao.bupt@...il.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@...il.com>
---
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@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux104: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux105: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux106: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux107: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux108: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux109: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux110: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux111: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux112: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux113: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux114: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux115: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux116: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux117: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux118: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux119: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fabric Card #2 */
imux17: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux120: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux121: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux122: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux123: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux124: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux125: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux126: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux127: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux128: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux129: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux130: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux131: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux132: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux133: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux134: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux135: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Line Card #1 */
imux18: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux40: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux41: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux42: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux43: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux44: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux45: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux46: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux47: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux48: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux49: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux50: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux51: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux52: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux53: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux54: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux55: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Line Card #2 */
imux19: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux56: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux57: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux58: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux59: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux60: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux61: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux62: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux63: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux64: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux65: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux66: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux67: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux68: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux69: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux70: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux71: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To LC3 SCM */
imux20: i2c@4 {
#address-cells = <1>;
#size-cells = <0>;
reg = <4>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux72: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux73: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux74: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux75: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux76: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux77: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux78: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux79: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux80: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux81: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux82: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux83: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux84: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux85: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux86: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux87: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Line Card #4 */
imux21: i2c@5 {
#address-cells = <1>;
#size-cells = <0>;
reg = <5>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux88: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux89: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux90: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux91: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux92: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux93: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux94: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux95: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux96: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux97: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux98: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux99: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux100: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux101: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux102: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux103: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fabric Card #3 */
imux22: i2c@6 {
#address-cells = <1>;
#size-cells = <0>;
reg = <6>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux136: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux137: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux138: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux139: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux140: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux141: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux142: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux143: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux144: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux145: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux146: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux147: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux148: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux149: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux150: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux151: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fabric Card #4 */
imux23: i2c@7 {
#address-cells = <1>;
#size-cells = <0>;
reg = <7>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux152: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux153: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux154: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux155: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux156: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux157: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux158: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux159: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+
+ i2c-switch@73 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x73>;
+ i2c-mux-idle-disconnect;
+
+ imux160: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux161: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux162: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux163: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux164: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux165: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux166: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux167: i2c@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@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@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux168: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux169: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux170: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux171: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux172: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux173: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux174: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux175: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fan Control Board #2 */
imux33: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux176: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux177: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux178: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux179: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux180: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux181: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux182: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux183: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fan Control Board #3 */
imux34: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux184: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux185: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux186: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux187: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux188: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux189: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux190: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux191: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
+ /* To Fan Control Board #4 */
imux35: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux192: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ imux193: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ imux194: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ imux195: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ imux196: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+ imux197: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+ imux198: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+ imux199: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
};
imux36: i2c@4 {
--
2.17.1
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