sh-sci: console drainage
Quoted 2 lines · Magnus Damm
Modify the serial console code to wait for the transmit FIFO, make sure all bits have been put on the wire before returning.
Quoted 9 lines · Magnus Damm
Add support for single IRQ hardware to the sh-rtc driver.
This is useful for processors with limited interrupt masking support such as sh7750 and sh7780. With this patch in place we can add logic to the intc code that merges all RTC vectors into a single linux interrupt with proper masking/unmasking support.
Specify a single IRQ in the platform data to use this new shared IRQ feature. Separate Periodic/Carry/Alarm IRQs are still supported.
Quoted 2 lines · Magnus Damm
Fix
iounmap()of pass-through P4 addresses. Without this patchiounmap()on the sh7780 rtc area results in a warning message.
Quoted 10 lines · Magnus Damm
Instead of keeping the single vector -> single linux irq mapping we extend the intc code to support merging of vectors to a single linux irq. This helps processors such as sh7750, sh7780 and sh7785 which have more vectors than masking ability. With this patch in place we can modify the intc tables to use one irq per maskable irq source. Please note the following:
- If multiple vectors share the same enum then only the first vector will be available as a linux irq.
Quoted 8 lines
- Drivers may need to be rewritten to get pending irq source from the hardware block instead of irq number.
This patch together with the sh7785 specific intc tables solves DMA controller irq issues related to buggy interrupt masking.
Signed-off-by Magnus Damm <[email protected]>Reported-by Yoshihiro Shimoda <[email protected]>
Please try to keep the flow consistent here. Reported-by should always be first, while Tested-by and so on tend to follow your Signed-off-by.
Quoted 6 lines · Magnus Damm
Update intc tables and platform data to use one linux irq per maskable interrupt source instead of keeping the one-to-one mapping between vectors and linux irqs.
This fixes potential irq masking issues for sh775x hardware blocks such as SCI/SCIF/RTC/DMAC/TMU2/REF.
Quoted 6 lines · Magnus Damm
Update intc tables and platform data to use one linux irq per maskable interrupt source instead of keeping the one-to-one mapping between vectors and linux irqs.
This fixes potential irq masking issues for sh7780 hardware blocks such as SCIF/RTC/DMAC/PCIC5/MMCIF/FLCTL/GPIO
Quoted 6 lines · Magnus Damm
Update intc tables and platform data to use one linux irq per maskable interrupt source instead of keeping the one-to-one mapping between vectors and linux irqs.
This fixes potential irq masking issues for sh7785 hardware blocks such as SCIF/DMAC/PCIC5/MMCIF/GDTA/FLCTL/GPIO
All applied, thanks.