u-boot.git/arch/x86/cpu, 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: 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: 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

x86: Compile irq.c for 64-bit

2017-02-07T05:23:39Z

There is no reason not to compile irq.c for 64-bit. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: Wrap print_ch() with config option

2017-02-07T05:23:07Z

print_ch() should not be used if DEBUG_UART is off. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: qemu: Add missing DECLARE_GLOBAL_DATA_PTR in e820.c

2017-02-07T05:22:01Z

DECLARE_GLOBAL_DATA_PTR is missing which causes 64-bit build error. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: Update compile/link flags to support 64-bit U-Boot

2017-02-07T05:14:54Z

Update config.mk settings to support both 32-bit and 64-bit U-Boot. Signed-off-by: Simon Glass Reviewed-by: Bin Meng