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authorNico Huber <nico.h@gmx.de>2020-10-04 16:19:57 +0200
committerNico Huber <nico.h@gmx.de>2020-10-29 00:01:40 +0000
commit394bd94e0cc15ee238bc7e8088257904f12a06ef (patch)
tree8ac89de8016528f76a8f170d1748c32fe0f44385 /src/mainboard/asus
parent0082a3e59e30aa4a92146dad05c58553cd4ee197 (diff)
downloadcoreboot-394bd94e0cc15ee238bc7e8088257904f12a06ef.tar.xz
mb/asus/f2a85-m_pro: Clean up super-I/O GPIO settings
Drop useless writes to read-only registers and don't re-write default 0x00 values. In detail: * Don't write read-only status registers. * Don't try to write input bits in data registers (iow. mask data values: `data &= ~io`). * Don't write data registers if all GPIOs are set as inputs (`io == 0xff`). * Don't write default 0x00 for inversion and multiplex registers. Note: Both GPIO0 and WDT1 values look spurious. Maybe they were dumped with the virtual devices disabled? Change-Id: I7d948d6b697285e61e4352b7354b924dbf511e9a Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46020 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/asus')
-rw-r--r--src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb38
1 files changed, 2 insertions, 36 deletions
diff --git a/src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb b/src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb
index aa2d52e567..654716b2b2 100644
--- a/src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb
+++ b/src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb
@@ -46,36 +46,18 @@ chip northbridge/amd/agesa/family15tn/root_complex
device pnp 2e.6 off end # CIR
device pnp 2e.7 on # GPIO6, GPIO7, GPIO8
irq 0xf4 = 0xff # GPIO6 i/o
- irq 0xf5 = 0xff # GPIO6 data
- irq 0xf6 = 0x00 # GPIO6 inversion
- irq 0xf7 = 0x00 # GPIO6 status
- irq 0xf8 = 0x00 # GPIO6 multiplex
irq 0xe0 = 0x7f # GPIO7 i/o
- irq 0xe1 = 0x10 # GPIO7 data
- irq 0xe2 = 0x00 # GPIO7 inversion
- irq 0xe3 = 0x00 # GPIO7 status
- irq 0xec = 0x00 # GPIO7 multiplex
-
- irq 0xe4 = 0xff # GPIO8 i/o
- irq 0xe5 = 0xff # GPIO8 data
- irq 0xe6 = 0xff # GPIO8 inversion
- irq 0xe7 = 0xff # GPIO8 status
- irq 0xed = 0xff # GPIO8 multiplex
+ irq 0xe1 = 0x00 # GPIO7 data
end
device pnp 2e.008 off # WDT1
end
device pnp 2e.108 on # GPIO0, GPIO1
irq 0xe0 = 0xff # GPIO0 i/o
- irq 0xe1 = 0xff # GPIO0 data
irq 0xe2 = 0xff # GPIO0 inversion
- irq 0xe3 = 0xff # GPIO0 status
irq 0xe4 = 0xff # GPIO0 multiplex
irq 0xf0 = 0xff # GPIO1 i/o
- irq 0xf1 = 0x28 # GPIO1 data
- irq 0xf2 = 0x00 # GPIO1 inversion
- irq 0xf3 = 0x00 # GPIO1 status
irq 0xf4 = 0x08 # GPIO1 multiplex
irq 0xf5 = 0xff # WDT1 control mode
@@ -88,32 +70,16 @@ chip northbridge/amd/agesa/family15tn/root_complex
end
device pnp 2e.209 on # GPIO2
irq 0xe0 = 0xff # GPIO2 i/o
- irq 0xe1 = 0x90 # GPIO2 data
- irq 0xe2 = 0x00 # GPIO2 inversion
- irq 0xe3 = 0x00 # GPIO2 status
- irq 0xe9 = 0x00 # GPIO2 multiplex
end
device pnp 2e.309 on # GPIO3
irq 0xe4 = 0x7f # GPIO3 i/o
- irq 0xe5 = 0x76 # GPIO3 data
- irq 0xe6 = 0x00 # GPIO3 inversion
- irq 0xe7 = 0x00 # GPIO3 status
- irq 0xea = 0x00 # GPIO3 multiplex
- irq 0xfe = 0x00 # GPIO3/4 debounce
+ irq 0xe5 = 0x00 # GPIO3 data
end
device pnp 2e.409 on # GPIO4
irq 0xf0 = 0xff # GPIO4 i/o
- irq 0xf1 = 0x7b # GPIO4 data
- irq 0xf2 = 0x00 # GPIO4 inversion
- irq 0xe8 = 0x00 # GPIO4 status
- irq 0xee = 0x00 # GPIO4 multiplex
end
device pnp 2e.509 on # GPIO5
irq 0xf4 = 0xff # GPIO5 i/o
- irq 0xf5 = 0xef # GPIO5 data
- irq 0xf6 = 0x00 # GPIO5 inversion
- irq 0xf7 = 0x00 # GPIO5 status
- irq 0xeb = 0x00 # GPIO5 multiplex
end
device pnp 2e.609 on # GPIO6
end