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>;
};
};
...
};