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- Intel Bay Trail FSP UPD Binding
- ===============================
- The device tree node which describes the overriding of the Intel Bay Trail FSP
- UPD data for configuring the SoC.
- All properties can be found within the `upd-region` struct in
- arch/x86/include/asm/arch-baytrail/fsp/fsp_vpd.h, under the same names, and in
- Intel's FSP Binary Configuration Tool for Bay Trail. This list of properties
- is matched up to Intel's E3800 FSPv4 release.
- # Boolean properties:
- - fsp,enable-sdio
- - fsp,enable-sdcard
- - fsp,enable-hsuart0
- - fsp,enable-hsuart1
- - fsp,enable-spi
- - fsp,enable-sata
- - fsp,enable-azalia
- - fsp,enable-xhci
- - fsp,enable-dma0
- - fsp,enable-dma1
- - fsp,enable-i2-c0
- - fsp,enable-i2-c1
- - fsp,enable-i2-c2
- - fsp,enable-i2-c3
- - fsp,enable-i2-c4
- - fsp,enable-i2-c5
- - fsp,enable-i2-c6
- - fsp,enable-pwm0
- - fsp,enable-pwm1
- - fsp,enable-hsi
- - fsp,mrc-debug-msg
- - fsp,isp-enable
- - fsp,igd-render-standby
- - fsp,txe-uma-enable
- - fsp,emmc45-ddr50-enabled
- - fsp,emmc45-hs200-enabled
- - fsp,enable-igd
- - fsp,enable-memory-down
- If you set "fsp,enable-memory-down" you are strongly encouraged to provide an
- "fsp,memory-down-params{};" to specify how your memory is configured. If you
- do not set "fsp,enable-memory-down", then the DIMM SPD information will be
- discovered by the FSP and used to setup main memory.
- # Integer properties:
- - fsp,mrc-init-tseg-size
- - fsp,mrc-init-mmio-size
- - fsp,mrc-init-spd-addr1
- - fsp,mrc-init-spd-addr2
- - fsp,emmc-boot-mode
- - fsp,sata-mode
- - fsp,lpe-mode
- - fsp,lpss-sio-mode
- - fsp,igd-dvmt50-pre-alloc
- - fsp,aperture-size
- - fsp,gtt-size
- - fsp,scc-mode
- - fsp,os-selection
- - fsp,emmc45-retune-timer-value
- - fsp,memory-down-params {
- # Boolean properties:
- - fsp,dimm-0-enable
- - fsp,dimm-1-enable
- # Integer properties:
- - fsp,dram-speed
- - fsp,dram-type
- - fsp,dimm-width
- - fsp,dimm-density
- - fsp,dimm-bus-width
- - fsp,dimm-sides
- - fsp,dimm-tcl
- - fsp,dimm-trpt-rcd
- - fsp,dimm-twr
- - fsp,dimm-twtr
- - fsp,dimm-trrd
- - fsp,dimm-trtp
- - fsp,dimm-tfaw
- };
- For all integer properties, available options are listed in fsp_configs.h in
- arch/x86/include/asm/arch-baytrail/fsp directory (eg: MRC_INIT_TSEG_SIZE_1MB).
- Example (from MinnowMax Dual Core):
- -----------------------------------
- / {
- ...
- fsp {
- compatible = "intel,baytrail-fsp";
- fsp,mrc-init-tseg-size = <MRC_INIT_TSEG_SIZE_1MB>;
- fsp,mrc-init-mmio-size = <MRC_INIT_MMIO_SIZE_2048MB>;
- fsp,mrc-init-spd-addr1 = <0xa0>;
- fsp,mrc-init-spd-addr2 = <0xa2>;
- fsp,emmc-boot-mode = <EMMC_BOOT_MODE_AUTO>;
- fsp,enable-sdio;
- fsp,enable-sdcard;
- fsp,enable-hsuart1;
- fsp,enable-spi;
- fsp,enable-sata;
- fsp,sata-mode = <SATA_MODE_AHCI>;
- fsp,lpe-mode = <LPE_MODE_PCI>;
- fsp,lpss-sio-mode = <LPSS_SIO_MODE_PCI>;
- fsp,enable-dma0;
- fsp,enable-dma1;
- fsp,enable-i2c0;
- fsp,enable-i2c1;
- fsp,enable-i2c2;
- fsp,enable-i2c3;
- fsp,enable-i2c4;
- fsp,enable-i2c5;
- fsp,enable-i2c6;
- fsp,enable-pwm0;
- fsp,enable-pwm1;
- fsp,igd-dvmt50-pre-alloc = <IGD_DVMT50_PRE_ALLOC_64MB>;
- fsp,aperture-size = <APERTURE_SIZE_256MB>;
- fsp,gtt-size = <GTT_SIZE_2MB>;
- fsp,scc-mode = <SCC_MODE_PCI>;
- fsp,os-selection = <OS_SELECTION_LINUX>;
- fsp,emmc45-ddr50-enabled;
- fsp,emmc45-retune-timer-value = <8>;
- fsp,enable-igd;
- fsp,enable-memory-down;
- fsp,memory-down-params {
- compatible = "intel,baytrail-fsp-mdp";
- fsp,dram-speed = <DRAM_SPEED_1066MTS>;
- fsp,dram-type = <DRAM_TYPE_DDR3L>;
- fsp,dimm-0-enable;
- fsp,dimm-width = <DIMM_WIDTH_X16>;
- fsp,dimm-density = <DIMM_DENSITY_4GBIT>;
- fsp,dimm-bus-width = <DIMM_BUS_WIDTH_64BITS>;
- fsp,dimm-sides = <DIMM_SIDES_1RANKS>;
- fsp,dimm-tcl = <0xb>;
- fsp,dimm-trpt-rcd = <0xb>;
- fsp,dimm-twr = <0xc>;
- fsp,dimm-twtr = <6>;
- fsp,dimm-trrd = <6>;
- fsp,dimm-trtp = <6>;
- fsp,dimm-tfaw = <0x14>;
- };
- };
- ...
- };
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