arch/arc/dts/hsdk-common.dtsi

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017-2020 Synopsys, Inc. All rights reserved.
   4  * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
   5  */
   6 /dts-v1/;
   7
   8 #include "skeleton.dtsi"
   9 #include "dt-bindings/clock/snps,hsdk-cgu.h"
  10 #include "dt-bindings/reset/snps,hsdk-reset.h"
  11
  12 / {
  13         #address-cells = <1>;
  14         #size-cells = <1>;
  15
  16         aliases {
  17                 console = &uart0;
  18                 spi0 = &spi0;
  19         };
  20
  21         cpu_card {
  22                 core_clk: core_clk {
  23                         #clock-cells = <0>;
  24                         compatible = "fixed-clock";
  25                         clock-frequency = <500000000>;
  26                         u-boot,dm-pre-reloc;
  27                 };
  28         };
  29
  30         clk-fmeas {
  31                 clocks = <&cgu_clk CLK_ARC_PLL>, <&cgu_clk CLK_SYS_PLL>,
  32                          <&cgu_clk CLK_TUN_PLL>, <&cgu_clk CLK_DDR_PLL>,
  33                          <&cgu_clk CLK_ARC>, <&cgu_clk CLK_HDMI_PLL>,
  34                          <&cgu_clk CLK_TUN_TUN>, <&cgu_clk CLK_HDMI>,
  35                          <&cgu_clk CLK_SYS_APB>, <&cgu_clk CLK_SYS_AXI>,
  36                          <&cgu_clk CLK_SYS_ETH>, <&cgu_clk CLK_SYS_USB>,
  37                          <&cgu_clk CLK_SYS_SDIO>, <&cgu_clk CLK_SYS_HDMI>,
  38                          <&cgu_clk CLK_SYS_GFX_CORE>, <&cgu_clk CLK_SYS_GFX_DMA>,
  39                          <&cgu_clk CLK_SYS_GFX_CFG>, <&cgu_clk CLK_SYS_DMAC_CORE>,
  40                          <&cgu_clk CLK_SYS_DMAC_CFG>, <&cgu_clk CLK_SYS_SDIO_REF>,
  41                          <&cgu_clk CLK_SYS_SPI_REF>, <&cgu_clk CLK_SYS_I2C_REF>,
  42                          <&cgu_clk CLK_SYS_UART_REF>, <&cgu_clk CLK_SYS_EBI_REF>,
  43                          <&cgu_clk CLK_TUN_ROM>, <&cgu_clk CLK_TUN_PWM>,
  44                          <&cgu_clk CLK_TUN_TIMER>;
  45                 clock-names = "cpu-pll", "sys-pll",
  46                               "tun-pll", "ddr-clk",
  47                               "cpu-clk", "hdmi-pll",
  48                               "tun-clk", "hdmi-clk",
  49                               "apb-clk", "axi-clk",
  50                               "eth-clk", "usb-clk",
  51                               "sdio-clk", "hdmi-sys-clk",
  52                               "gfx-core-clk", "gfx-dma-clk",
  53                               "gfx-cfg-clk", "dmac-core-clk",
  54                               "dmac-cfg-clk", "sdio-ref-clk",
  55                               "spi-clk", "i2c-clk",
  56                               "uart-clk", "ebi-clk",
  57                               "rom-clk", "pwm-clk",
  58                               "timer-clk";
  59         };
  60
  61         cgu_clk: cgu-clk@f0000000 {
  62                 compatible = "snps,hsdk-cgu-clock";
  63                 reg = <0xf0000000 0x10>, <0xf00014B8 0x4>;
  64                 #clock-cells = <1>;
  65         };
  66
  67         cgu_rst: reset-controller@f00008a0 {
  68                 compatible = "snps,hsdk-reset";
  69                 #reset-cells = <1>;
  70                 reg = <0xf00008a0 0x4>, <0xf0000ff0 0x4>;
  71         };
  72
  73         uart0: serial0@f0005000 {
  74                 compatible = "snps,dw-apb-uart";
  75                 reg = <0xf0005000 0x1000>;
  76                 reg-shift = <2>;
  77                 reg-io-width = <4>;
  78         };
  79
  80         ethernet@f0008000 {
  81                 #interrupt-cells = <1>;
  82                 compatible = "snps,arc-dwmac-3.70a";
  83                 reg = <0xf0008000 0x2000>;
  84                 phy-mode = "gmii";
  85         };
  86
  87         ehci@f0040000 {
  88                 compatible = "generic-ehci";
  89                 reg = <0xf0040000 0x100>;
  90
  91                 /*
  92                  * OHCI and EHCI have reset line shared so we don't add
  93                  * reset property to OHCI node as it is probed later and
  94                  * it will reset sucessfuly probed and configured EHCI HW.
  95                  */
  96                 resets = <&cgu_rst HSDK_USB_RESET>;
  97         };
  98
  99         ohci@f0060000 {
 100                 compatible = "generic-ohci";
 101                 reg = <0xf0060000 0x100>;
 102         };
 103
 104         mmcclk_ciu: mmcclk-ciu {
 105                 compatible = "fixed-clock";
 106                 /*
 107                  * DW sdio controller has external ciu clock divider
 108                  * controlled via register in SDIO IP. Due to its
 109                  * unexpected default value (it should divide by 1
 110                  * but it divides by 8) SDIO IP uses wrong clock and
 111                  * works unstable (see STAR 9001204800)
 112                  * We switched to the minimum possible value of the
 113                  * divisor (div-by-2) in HSDK platform code.
 114                  * So default mmcclk ciu clock is 50000000 Hz.
 115                  */
 116                 clock-frequency = <50000000>;
 117                 #clock-cells = <0>;
 118         };
 119
 120         mmc: mmc0@f000a000 {
 121                 compatible = "snps,dw-mshc";
 122                 reg = <0xf000a000 0x400>;
 123                 bus-width = <4>;
 124                 fifo-depth = <256>;
 125                 clocks = <&cgu_clk CLK_SYS_SDIO>, <&mmcclk_ciu>;
 126                 clock-names = "biu", "ciu";
 127                 max-frequency = <25000000>;
 128         };
 129
 130         spi0: spi@f0020000 {
 131                 compatible = "snps,dw-apb-ssi";
 132                 reg = <0xf0020000 0x1000>;
 133                 #address-cells = <1>;
 134                 #size-cells = <0>;
 135                 spi-max-frequency = <4000000>;
 136                 clocks = <&cgu_clk CLK_SYS_SPI_REF>;
 137                 clock-names = "spi_clk";
 138                 cs-gpio = <&cs_gpio 0>;
 139                 spi_flash@0 {
 140                         compatible = "jedec,spi-nor";
 141                         reg = <0>;
 142                         spi-max-frequency = <4000000>;
 143                 };
 144         };
 145
 146         cs_gpio: gpio@f00014b0 {
 147                 compatible = "snps,creg-gpio";
 148                 reg = <0xf00014b0 0x4>;
 149                 gpio-controller;
 150                 #gpio-cells = <1>;
 151                 gpio-bank-name = "hsdk-spi-cs";
 152                 gpio-count = <1>;
 153                 gpio-first-shift = <0>;
 154                 gpio-bit-per-line = <2>;
 155                 gpio-activate-val = <2>;
 156                 gpio-deactivate-val = <3>;
 157                 gpio-default-val = <1>;
 158         };
 159 };