spi: zynq_spi: Add fdt support in driver

[karo-tx-uboot.git] / doc / README.x86

diff --git a/doc/README.x86 b/doc/README.x86
index 4a30f68ce4b4ec7c557fcc725d2eb012fcb66f12..c19f4a03ba07d1ddc93e182d16cf2607ec7bca3b 100644 (file)
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -40,7 +40,7 @@ configuration during the 'make menuconfig' process.
 x86 architecture  --->
        ...
        (qemu-x86) Board configuration file
-       (qemu-x86) Board Device Tree Source (dts) file
+       (qemu-x86_i440fx) Board Device Tree Source (dts) file
        (0x01920000) Board specific Cache-As-RAM (CAR) address
        (0x4000) Board specific Cache-As-RAM (CAR) size
 
@@ -186,6 +186,14 @@ To build u-boot.rom for QEMU x86 targets, just simply run
 $ make qemu-x86_defconfig
 $ make all
 
+Note this default configuration will build a U-Boot for the QEMU x86 i440FX
+board. To build a U-Boot against QEMU x86 Q35 board, you can change the build
+configuration during the 'make menuconfig' process like below:
+
+Device Tree Control  --->
+       ...
+       (qemu-x86_q35) Default Device Tree for DT control
+
 Test with coreboot
 ------------------
 For testing U-Boot as the coreboot payload, there are things that need be paid
@@ -218,7 +226,8 @@ works correctly for link though.
 Test with QEMU
 --------------
 QEMU is a fancy emulator that can enable us to test U-Boot without access to
-a real x86 board. To launch QEMU with u-boot.rom, call QEMU as follows:
+a real x86 board. Please make sure your QEMU version is 2.3.0 or above test
+U-Boot. To launch QEMU with u-boot.rom, call QEMU as follows:
 
 $ qemu-system-i386 -nographic -bios path/to/u-boot.rom
 
@@ -239,6 +248,10 @@ supports 3 GiB maximum system memory and reserves the last 1 GiB address space
 for PCI device memory-mapped I/O and other stuff, so the maximum value of '-m'
 would be 3072.
 
+QEMU emulates a graphic card which U-Boot supports. Removing '-nographic' will
+show QEMU's VGA console window. Note this will disable QEMU's serial output.
+If you want to check both consoles, use '-serial stdio'.
+
 CPU Microcode
 -------------
 Modern CPUs usually require a special bit stream called microcode [6] to be