diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-16 21:22:30 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | b95611f67e709f8c98c1a31714dc941d436c0d5c (patch) | |
| tree | e83c7d924f0f22e3d2e5c4feee61442b0f23435c /arch/x86/cpu/apollolake/fsp_s.c | |
| parent | a8c2789c09681660bfdbda489e504d12b0ab74b5 (diff) | |
x86: apl: Fix save/restore of ITSS priorities
The FSP-S changes the ITSS priorities. The code that tries to save it
before running FSP-S and restore it afterwards does not work as U-Boot
relocates in between the save and restore. This means that the driver
data saved before relocation is lost and the new driver just sees zeroes.
Fix this by allocating space in the relocated memory for the ITSS data.
Save it there and access it from the driver after relocation.
This fixes interrupt handling on coral.
Also drop the log_msg_ret() in irq_first_device_type() since this function
can be called speculatively in places where we are not sure if there is
an interrupt controller of that type. The resulting log errors are
confusing when there is no error.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Diffstat (limited to 'arch/x86/cpu/apollolake/fsp_s.c')
| -rw-r--r-- | arch/x86/cpu/apollolake/fsp_s.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/cpu/apollolake/fsp_s.c b/arch/x86/cpu/apollolake/fsp_s.c index 3a54297a28..e54b0ac104 100644 --- a/arch/x86/cpu/apollolake/fsp_s.c +++ b/arch/x86/cpu/apollolake/fsp_s.c @@ -160,11 +160,6 @@ int arch_fsps_preinit(void) ret = irq_first_device_type(X86_IRQT_ITSS, &itss); if (ret) return log_msg_ret("no itss", ret); - /* - * Snapshot the current GPIO IRQ polarities. FSP is setting a default - * policy that doesn't honour boards' requirements - */ - irq_snapshot_polarities(itss); /* * Clear the GPI interrupt status and enable registers. These @@ -203,7 +198,11 @@ int arch_fsp_init_r(void) ret = irq_first_device_type(X86_IRQT_ITSS, &itss); if (ret) return log_msg_ret("no itss", ret); - /* Restore GPIO IRQ polarities back to previous settings */ + + /* + * Restore GPIO IRQ polarities back to previous settings. This was + * stored in reserve_arch() - see X86_IRQT_ITSS + */ irq_restore_polarities(itss); /* soc_init() */ |