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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2021-06-18 06:46:32 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2021-06-21 14:16:31 +0300
commit48b545b8018db61ab4978d29c73c16b9fbfad12c (patch)
treee0af16bb18cc8c57058e2b27000f14c1f55fc908 /arch/powerpc/platforms/microwatt
parentaa9c5adf2f61da39c92280d9336e091852e292ff (diff)
downloadlinux-48b545b8018db61ab4978d29c73c16b9fbfad12c.tar.xz
powerpc/microwatt: Use standard 16550 UART for console
This adds support to the Microwatt platform to use the standard 16550-style UART which available in the standalone Microwatt FPGA. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/YMwXGCTzedpQje7r@thinks.paulus.ozlabs.org
Diffstat (limited to 'arch/powerpc/platforms/microwatt')
-rw-r--r--arch/powerpc/platforms/microwatt/Kconfig1
-rw-r--r--arch/powerpc/platforms/microwatt/setup.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/microwatt/Kconfig b/arch/powerpc/platforms/microwatt/Kconfig
index b52c869c0eb8..50ed0cedb5f1 100644
--- a/arch/powerpc/platforms/microwatt/Kconfig
+++ b/arch/powerpc/platforms/microwatt/Kconfig
@@ -6,6 +6,7 @@ config PPC_MICROWATT
select PPC_ICS_NATIVE
select PPC_ICP_NATIVE
select PPC_NATIVE
+ select PPC_UDBG_16550
help
This option enables support for FPGA-based Microwatt implementations.
diff --git a/arch/powerpc/platforms/microwatt/setup.c b/arch/powerpc/platforms/microwatt/setup.c
index 1c1b7791fa57..0b02603bdb74 100644
--- a/arch/powerpc/platforms/microwatt/setup.c
+++ b/arch/powerpc/platforms/microwatt/setup.c
@@ -14,6 +14,7 @@
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/xics.h>
+#include <asm/udbg.h>
static void __init microwatt_init_IRQ(void)
{
@@ -35,5 +36,6 @@ define_machine(microwatt) {
.name = "microwatt",
.probe = microwatt_probe,
.init_IRQ = microwatt_init_IRQ,
+ .progress = udbg_progress,
.calibrate_decr = generic_calibrate_decr,
};