git.openwrt.org Git - openwrt/staging/linusw.git/blob

   1 From ec2216edd465bcc7bd423ba2cae1058c22a8ef7e Mon Sep 17 00:00:00 2001
   2 From: Dom Cobley <popcornmix@gmail.com>
   3 Date: Fri, 5 Apr 2024 11:58:47 +0100
   4 Subject: [PATCH 1011/1085] nvmem: raspberrypi: Enable nvmem otp driver through
   5  DT
   6
   7 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
   8 ---
   9  arch/arm/boot/dts/broadcom/bcm2708-rpi.dtsi   | 17 ++++++++++
  10  .../arm/boot/dts/broadcom/bcm2711-rpi-ds.dtsi | 23 +++++++++++++
  11  arch/arm/boot/dts/broadcom/bcm2712-rpi.dtsi   | 32 +++++++++++++++++++
  12  arch/arm/boot/dts/overlays/README             |  6 ++++
  13  4 files changed, 78 insertions(+)
  14
  15 --- a/arch/arm/boot/dts/broadcom/bcm2708-rpi.dtsi
  16 +++ b/arch/arm/boot/dts/broadcom/bcm2708-rpi.dtsi
  17 @@ -19,11 +19,28 @@
  18                 hdmi = <&hdmi>,"status";
  19                 i2c2_iknowwhatimdoing = <&i2c2>,"status";
  20                 i2c2_baudrate = <&i2c2>,"clock-frequency:0";
  21 +               nvmem_cust_rw = <&nvmem_cust>,"rw?";
  22                 sd = <&sdhost>,"status";
  23                 sd_poll_once = <&sdhost>,"non-removable?";
  24         };
  25  };
  26
  27 +&soc {
  28 +       nvmem_otp: nvmem_otp {
  29 +               compatible = "raspberrypi,rpi-otp";
  30 +               firmware = <&firmware>;
  31 +               reg = <0 192>;
  32 +               status = "okay";
  33 +       };
  34 +
  35 +       nvmem_cust: nvmem_cust {
  36 +               compatible = "raspberrypi,rpi-otp";
  37 +               firmware = <&firmware>;
  38 +               reg = <1 8>;
  39 +               status = "okay";
  40 +       };
  41 +};
  42 +
  43  &sdhost {
  44         pinctrl-names = "default";
  45         pinctrl-0 = <&sdhost_gpio48>;
  46 --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-ds.dtsi
  47 +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-ds.dtsi
  48 @@ -10,6 +10,8 @@
  49                 eee = <&chosen>,"bootargs{on='',off='genet.eee=N'}";
  50                 hdmi = <&hdmi0>,"status",
  51                        <&hdmi1>,"status";
  52 +               nvmem_cust_rw = <&nvmem_cust>,"rw?";
  53 +               nvmem_priv_rw = <&nvmem_priv>,"rw?";
  54                 pcie = <&pcie0>,"status";
  55                 sd = <&emmc2>,"status";
  56
  57 @@ -88,6 +90,27 @@
  58         /* Add the physical <-> DMA mapping for the I/O space */
  59         dma-ranges = <0xc0000000  0x0 0x00000000  0x40000000>,
  60                      <0x7c000000  0x0 0xfc000000  0x03800000>;
  61 +
  62 +       nvmem_otp: nvmem_otp {
  63 +               compatible = "raspberrypi,rpi-otp";
  64 +               firmware = <&firmware>;
  65 +               reg = <0 166>;
  66 +               status = "okay";
  67 +       };
  68 +
  69 +       nvmem_cust: nvmem_cust {
  70 +               compatible = "raspberrypi,rpi-otp";
  71 +               firmware = <&firmware>;
  72 +               reg = <1 8>;
  73 +               status = "okay";
  74 +       };
  75 +
  76 +       nvmem_priv: nvmem_priv {
  77 +               compatible = "raspberrypi,rpi-otp";
  78 +               firmware = <&firmware>;
  79 +               reg = <3 8>;
  80 +               status = "okay";
  81 +       };
  82  };
  83
  84  &scb {
  85 --- a/arch/arm/boot/dts/broadcom/bcm2712-rpi.dtsi
  86 +++ b/arch/arm/boot/dts/broadcom/bcm2712-rpi.dtsi
  87 @@ -45,6 +45,34 @@
  88                 trickle-charge-microvolt = <0>;
  89         };
  90
  91 +       nvmem_otp: nvmem_otp {
  92 +               compatible = "raspberrypi,rpi-otp";
  93 +               firmware = <&firmware>;
  94 +               reg = <0 192>;
  95 +               status = "okay";
  96 +       };
  97 +
  98 +       nvmem_cust: nvmem_cust {
  99 +               compatible = "raspberrypi,rpi-otp";
 100 +               firmware = <&firmware>;
 101 +               reg = <1 8>;
 102 +               status = "okay";
 103 +       };
 104 +
 105 +       nvmem_mac: nvmem_mac {
 106 +               compatible = "raspberrypi,rpi-otp";
 107 +               firmware = <&firmware>;
 108 +               reg = <2 6>;
 109 +               status = "okay";
 110 +       };
 111 +
 112 +       nvmem_priv: nvmem_priv {
 113 +               compatible = "raspberrypi,rpi-otp";
 114 +               firmware = <&firmware>;
 115 +               reg = <3 16>;
 116 +               status = "okay";
 117 +       };
 118 +
 119         /* Define these notional regulators for use by overlays, etc. */
 120         vdd_3v3_reg: fixedregulator_3v3 {
 121                 compatible = "regulator-fixed";
 122 @@ -67,6 +95,10 @@
 123         __overrides__ {
 124                 arm_freq;
 125                 axiperf = <&axiperf>,"status";
 126 +
 127 +               nvmem_cust_rw = <&nvmem_cust>,"rw?";
 128 +               nvmem_priv_rw = <&nvmem_priv>,"rw?";
 129 +               nvmem_mac_rw = <&nvmem_mac>,"rw?";
 130         };
 131  };
 132
 133 --- a/arch/arm/boot/dts/overlays/README
 134 +++ b/arch/arm/boot/dts/overlays/README
 135 @@ -300,6 +300,12 @@ Params:
 136
 137          nvme                    Alias for "pciex1" (2712 only)
 138
 139 +        nvmem_cust_rw           Allow read/write access to customer otp
 140 +
 141 +        nvmem_mac_rw            Allow read/write access to mac addresses otp
 142 +
 143 +        nvmem_priv_rw           Allow read/write access to customer private otp
 144 +
 145          pcie                    Set to "off" to disable the PCIe interface
 146                                  (default "on")
 147                                  (2711 only, but not applicable on CM4S)