u-boot.git/arch/x86/include, branch v2020.01

x86: Add a CPU init function for TPL

2019-11-02T23:20:28Z

For TPL we only need to set up the features and identify the CPU to a basic level. Add a function to handle that. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: spl: Support init of a PUNIT

2019-11-02T23:20:27Z

The x86 power unit handles power management. Support initing this device which is modelled as a new type of system controller since there are no operations needed. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: timer: Use a separate flag for whether timer is inited

2019-11-02T23:20:27Z

At present the value of the timer base is used to determine whether the timer has been set up or not. It is true that the timer is essentially never exactly 0 when it is read. However 'time 0' may indicate the time that the machine was reset so it is useful to be able to denote that. Update the code to use a separate flag instead. Signed-off-by: Simon Glass Tested-by: Aiden Park Reviewed-by: Aiden Park Reviewed-by: Bin Meng

x86: Add a function to set variable MTRRs

2019-10-08T05:57:48Z

Normally U-Boot handles MTRRs through an add/commit process which overwrites all MTRRs. But in very early boot it is not desirable to clear the existing MTRRs since they may be in use and it can cause a hang. Add a new mtrr_set_next_var() function which sets up the next available MTRR to the required region. Signed-off-by: Simon Glass Reviewed-by: Bin Meng [bmeng: pass 'type' to set_var_mtrr() in mtrr_set_next_var()] Signed-off-by: Bin Meng

x86: Add new common CPU functions for turbo/burst mode

2019-10-08T05:57:47Z

Add a few more CPU functions that are common on Intel CPUs. Also add attribution for the code source. Signed-off-by: Simon Glass Reviewed-by: Bin Meng [bmeng: add missing MSR_IA32_MISC_ENABLE write back in cpu_set_eist(); fix 2 typos in cpu_get_burst_mode_state() comments] Signed-off-by: Bin Meng

x86: Tidy up some duplicate MSR defines

2019-10-08T05:57:47Z

Some MSR registers are defined twice in different parts of the file. Move them together and remove the duplicates. Also drop some thermal defines which are not used. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Add common functions for TDP and perf control

2019-10-08T05:57:47Z

These functions are the same on modern Intel CPUs, so use common code to set them. Signed-off-by: Simon Glass Reviewed-by: Bin Meng [bmeng: return false instead of 0 in cpu_ivybridge_config_tdp_levels(); fix 'muiltiplier' and 'desgn' typos] Signed-off-by: Bin Meng

x86: Use a common bus clock for Intel CPUs

2019-10-08T05:57:47Z

Modern Intel CPUs use a standard bus clock value of 100MHz, so put this in a common file and tidy up the copies. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Add a common function to set CPU thermal target

2019-10-08T05:57:46Z

This code appears in a few places, so move it to a common file. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Use a common definition of MSR_IA32_PERF_CTL

2019-10-08T05:57:46Z

Remove the duplicate definition as it is not needed. Signed-off-by: Simon Glass Reviewed-by: Bin Meng