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term/ns8250: Support more MMIO access sizes

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It is common for PCI based UARTs to use larger than one byte access
sizes. This adds support for this and uses the information present
in SPCR accordingly.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Benjamin Herrenschmidt authored and Daniel Kiper committed 2023-01-19 17:39:04 +01:00
1 parent 7b192ec4cd
commit f5e1d23a18
3 files changed
+60 -6
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grub-core/term/ns8250-spcr.c
+2 -1
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@@ -76,7 +76,8 @@ grub_ns8250_spcr_init (void)
switch (spcr->base_addr.space_id)
{
case GRUB_ACPI_GENADDR_MEM_SPACE:
return grub_serial_ns8250_add_mmio (spcr->base_addr.addr, &config);
return grub_serial_ns8250_add_mmio (spcr->base_addr.addr,
spcr->base_addr.access_size, &config);
case GRUB_ACPI_GENADDR_IO_SPACE:
return grub_serial_ns8250_add_port (spcr->base_addr.addr, &config);
default: