Remove 'cpus' node in dts files for QEMU targets, retrieve cpu number through 'fw_cfg' interface and fix up device tree blob at runtime.
Signed-off-by: Miao Yan yanmiaobest@gmail.com --- Changes in v2: - rebase to u-boot-x86/next
arch/x86/cpu/qemu/qemu.c | 4 ++++ arch/x86/dts/qemu-x86_i440fx.dts | 19 +------------------ arch/x86/dts/qemu-x86_q35.dts | 19 +------------------ 3 files changed, 6 insertions(+), 36 deletions(-)
diff --git a/arch/x86/cpu/qemu/qemu.c b/arch/x86/cpu/qemu/qemu.c index d9ae066..3be3af0 100644 --- a/arch/x86/cpu/qemu/qemu.c +++ b/arch/x86/cpu/qemu/qemu.c @@ -15,6 +15,8 @@
static bool i440fx;
+DECLARE_GLOBAL_DATA_PTR; + static void qemu_chipset_init(void) { u16 device, xbcs; @@ -93,6 +95,8 @@ int arch_early_init_r(void) { qemu_chipset_init();
+ qemu_fwcfg_fdt_fixup((void *)gd->fdt_blob, qemu_fwcfg_online_cpus()); + return 0; }
diff --git a/arch/x86/dts/qemu-x86_i440fx.dts b/arch/x86/dts/qemu-x86_i440fx.dts index 4332204..79bafbd 100644 --- a/arch/x86/dts/qemu-x86_i440fx.dts +++ b/arch/x86/dts/qemu-x86_i440fx.dts @@ -26,24 +26,7 @@ stdout-path = "/serial"; };
- cpus { - #address-cells = <1>; - #size-cells = <0>; - - cpu@0 { - device_type = "cpu"; - compatible = "cpu-qemu"; - reg = <0>; - intel,apic-id = <0>; - }; - - cpu@1 { - device_type = "cpu"; - compatible = "cpu-qemu"; - reg = <1>; - intel,apic-id = <1>; - }; - }; + /* cpu node will be dynamically filled by U-Boot */
tsc-timer { clock-frequency = <1000000000>; diff --git a/arch/x86/dts/qemu-x86_q35.dts b/arch/x86/dts/qemu-x86_q35.dts index 3e2cfac..9563344 100644 --- a/arch/x86/dts/qemu-x86_q35.dts +++ b/arch/x86/dts/qemu-x86_q35.dts @@ -37,24 +37,7 @@ stdout-path = "/serial"; };
- cpus { - #address-cells = <1>; - #size-cells = <0>; - - cpu@0 { - device_type = "cpu"; - compatible = "cpu-qemu"; - reg = <0>; - intel,apic-id = <0>; - }; - - cpu@1 { - device_type = "cpu"; - compatible = "cpu-qemu"; - reg = <1>; - intel,apic-id = <1>; - }; - }; + /* cpu node will be dynamically filled by U-Boot */
tsc-timer { clock-frequency = <1000000000>;