u-boot.git/arch/x86, branch v2017.03

x86: Intel MID platforms has no microcode update

2017-02-21T07:10:56Z

There is no microcode update available for SoCs used on Intel MID platforms. Use conditional to bypass it. Reviewed-by: Bin Meng Reviewed-by: Simon Glass Signed-off-by: Andy Shevchenko

x86: zImage: add Intel MID platforms support

2017-02-21T07:10:50Z

Intel MID platform boards have special treatment, such as boot parameter setting. Assign hardware_subarch accordingly if CONFIG_INTEL_MID is set. Reviewed-by: Bin Meng Reviewed-by: Simon Glass Signed-off-by: Vincent Tinelli Signed-off-by: Andy Shevchenko

x86: Introduce INTEL_MID quirk option

2017-02-21T07:10:46Z

Intel Mobile Internet Device (MID) platforms have special treatment in some cases, such as CPU enumeration or boot parameters configuration. Besides that several drivers are specifically developed for the IP blocks found on Intel MID platforms. Those drivers will be dependent to this option. Here we introduce specific quirk option for such cases. It is supposed to be selected by Intel MID platform boards, for example, Intel Edison. Reviewed-by: Bin Meng Reviewed-by: Simon Glass Signed-off-by: Andy Shevchenko

x86: Force 32-bit jumps in interrupt handlers

2017-02-21T06:53:29Z

Depending upon the compiler used, IRQ entries could vary in sizes. With GCC 5.x, the code generator will use short jumps for some IRQ entries but near jumps for others. For example, GCC 5.4.0 generates the following: $ objdump -d interrupt.o 00000207 : 207: 6a 12 push $0x12 209: eb 85 jmp 190 0000020b : 20b: 6a 13 push $0x13 20d: eb 81 jmp 190 0000020f : 20f: 6a 14 push $0x14 211: e9 7a ff ff ff jmp 190 00000216 : 216: 6a 15 push $0x15 218: e9 73 ff ff ff jmp 190 This causes a problem in cpu_init_interrupts(), because the IDT setup assumed same sizes for all IRQ entries. GCC 4.x always generated 32-bit jumps, so this previously was not a problem. The fix is to force 32-bit near jumps for all entries within the inline assembly. This works for GCC 5.x, and 4.x was already using that form of jumping. Signed-off-by: Jason Tang Reviewed-by: Bin Meng

dm: core: Replace of_offset with accessor

2017-02-08T13:12:14Z

At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass

x86: make LOAD_FROM_32_BIT visible for platforms

2017-02-07T05:36:50Z

This option is useful not only for development, but for the platforms where U-Boot is run from custom ROM bootloader. For example, Intel Edison is that board. Make this option visible that platforms can select it if needed. Signed-off-by: Andy Shevchenko Reviewed-by: Bin Meng

x86: qemu: Mark ucode as optional for SPL in u-boot.dtsi

2017-02-07T05:27:13Z

QEMU does not need ucode and this is indicated in u-boot.dtsi for U-Boot proper. Now add the same for SPL. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: qemu: Set up device tree for SPL

2017-02-07T05:27:11Z

Add the correct pre-relocation tag so that the required device tree nodes are present in the SPL device tree. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: qemu: Fix compiler warnings for 64-bit

2017-02-07T05:27:08Z

This fixes compiler warnings for QEMU in 64-bit. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: qemu: Hide arch_cpu_init() and print_cpuinfo() for U-Boot proper

2017-02-07T05:23:42Z

arch_cpu_init() and print_cpuinfo() should be only available in SPL build. Signed-off-by: Bin Meng Reviewed-by: Simon Glass