diff options
Diffstat (limited to 'arch/arc/dts/hsdk-common.dtsi')
| -rw-r--r-- | arch/arc/dts/hsdk-common.dtsi | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/arch/arc/dts/hsdk-common.dtsi b/arch/arc/dts/hsdk-common.dtsi new file mode 100644 index 0000000000..7292a8da51 --- /dev/null +++ b/arch/arc/dts/hsdk-common.dtsi @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017-2020 Synopsys, Inc. All rights reserved. + * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> + */ +/dts-v1/; + +#include "skeleton.dtsi" +#include "dt-bindings/clock/snps,hsdk-cgu.h" +#include "dt-bindings/reset/snps,hsdk-reset.h" + +/ { + #address-cells = <1>; + #size-cells = <1>; + + aliases { + console = &uart0; + spi0 = &spi0; + }; + + cpu_card { + core_clk: core_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <500000000>; + u-boot,dm-pre-reloc; + }; + }; + + clk-fmeas { + clocks = <&cgu_clk CLK_ARC_PLL>, <&cgu_clk CLK_SYS_PLL>, + <&cgu_clk CLK_TUN_PLL>, <&cgu_clk CLK_DDR_PLL>, + <&cgu_clk CLK_ARC>, <&cgu_clk CLK_HDMI_PLL>, + <&cgu_clk CLK_TUN_TUN>, <&cgu_clk CLK_HDMI>, + <&cgu_clk CLK_SYS_APB>, <&cgu_clk CLK_SYS_AXI>, + <&cgu_clk CLK_SYS_ETH>, <&cgu_clk CLK_SYS_USB>, + <&cgu_clk CLK_SYS_SDIO>, <&cgu_clk CLK_SYS_HDMI>, + <&cgu_clk CLK_SYS_GFX_CORE>, <&cgu_clk CLK_SYS_GFX_DMA>, + <&cgu_clk CLK_SYS_GFX_CFG>, <&cgu_clk CLK_SYS_DMAC_CORE>, + <&cgu_clk CLK_SYS_DMAC_CFG>, <&cgu_clk CLK_SYS_SDIO_REF>, + <&cgu_clk CLK_SYS_SPI_REF>, <&cgu_clk CLK_SYS_I2C_REF>, + <&cgu_clk CLK_SYS_UART_REF>, <&cgu_clk CLK_SYS_EBI_REF>, + <&cgu_clk CLK_TUN_ROM>, <&cgu_clk CLK_TUN_PWM>; + clock-names = "cpu-pll", "sys-pll", + "tun-pll", "ddr-clk", + "cpu-clk", "hdmi-pll", + "tun-clk", "hdmi-clk", + "apb-clk", "axi-clk", + "eth-clk", "usb-clk", + "sdio-clk", "hdmi-sys-clk", + "gfx-core-clk", "gfx-dma-clk", + "gfx-cfg-clk", "dmac-core-clk", + "dmac-cfg-clk", "sdio-ref-clk", + "spi-clk", "i2c-clk", + "uart-clk", "ebi-clk", + "rom-clk", "pwm-clk"; + }; + + cgu_clk: cgu-clk@f0000000 { + compatible = "snps,hsdk-cgu-clock"; + reg = <0xf0000000 0x10>, <0xf00014B8 0x4>; + #clock-cells = <1>; + }; + + cgu_rst: reset-controller@f00008a0 { + compatible = "snps,hsdk-reset"; + #reset-cells = <1>; + reg = <0xf00008a0 0x4>, <0xf0000ff0 0x4>; + }; + + uart0: serial0@f0005000 { + compatible = "snps,dw-apb-uart"; + reg = <0xf0005000 0x1000>; + reg-shift = <2>; + reg-io-width = <4>; + }; + + ethernet@f0008000 { + #interrupt-cells = <1>; + compatible = "snps,arc-dwmac-3.70a"; + reg = <0xf0008000 0x2000>; + phy-mode = "gmii"; + }; + + ehci@0xf0040000 { + compatible = "generic-ehci"; + reg = <0xf0040000 0x100>; + }; + + ohci@0xf0060000 { + compatible = "generic-ohci"; + reg = <0xf0060000 0x100>; + }; + + mmcclk_ciu: mmcclk-ciu { + compatible = "fixed-clock"; + /* + * DW sdio controller has external ciu clock divider + * controlled via register in SDIO IP. Due to its + * unexpected default value (it should divide by 1 + * but it divides by 8) SDIO IP uses wrong clock and + * works unstable (see STAR 9001204800) + * We switched to the minimum possible value of the + * divisor (div-by-2) in HSDK platform code. + * So default mmcclk ciu clock is 50000000 Hz. + */ + clock-frequency = <50000000>; + #clock-cells = <0>; + }; + + mmc: mmc0@f000a000 { + compatible = "snps,dw-mshc"; + reg = <0xf000a000 0x400>; + bus-width = <4>; + fifo-depth = <256>; + clocks = <&cgu_clk CLK_SYS_SDIO>, <&mmcclk_ciu>; + clock-names = "biu", "ciu"; + max-frequency = <25000000>; + }; + + spi0: spi@f0020000 { + compatible = "snps,dw-apb-ssi"; + reg = <0xf0020000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <4000000>; + clocks = <&cgu_clk CLK_SYS_SPI_REF>; + clock-names = "spi_clk"; + cs-gpio = <&cs_gpio 0>; + spi_flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <4000000>; + }; + }; + + cs_gpio: gpio@f00014b0 { + compatible = "snps,creg-gpio"; + reg = <0xf00014b0 0x4>; + gpio-controller; + #gpio-cells = <1>; + gpio-bank-name = "hsdk-spi-cs"; + gpio-count = <1>; + gpio-first-shift = <0>; + gpio-bit-per-line = <2>; + gpio-activate-val = <2>; + gpio-deactivate-val = <3>; + gpio-default-val = <1>; + }; +}; |