* [PATCH AUTOSEL 4.19 147/252] soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
[not found] ` <20200214161147.15842-1-sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
@ 2020-02-14 16:10 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2020-02-14 16:10 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA,
stable-u79uwXL29TY76Z2rM5mHXA
Cc: Dmitry Osipenko, Thierry Reding, Sasha Levin,
linux-tegra-u79uwXL29TY76Z2rM5mHXA
From: Dmitry Osipenko <digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
[ Upstream commit 2d9ea1934f8ef0dfb862d103389562cc28b4fc03 ]
Trying to read out Chip ID before APBMISC registers are mapped won't
succeed, in a result Tegra124 gets a wrong address for the HW straps
register if machine uses an old outdated device tree.
Fixes: 297c4f3dcbff ("soc/tegra: fuse: Restrict legacy code to 32-bit ARM")
Signed-off-by: Dmitry Osipenko <digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Signed-off-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Sasha Levin <sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
drivers/soc/tegra/fuse/tegra-apbmisc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index e5a4d8f98b10e..d1cbb0fe1691a 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -135,7 +135,7 @@ void __init tegra_init_apbmisc(void)
apbmisc.flags = IORESOURCE_MEM;
/* strapping options */
- if (tegra_get_chip_id() == TEGRA124) {
+ if (of_machine_is_compatible("nvidia,tegra124")) {
straps.start = 0x7000e864;
straps.end = 0x7000e867;
} else {
--
2.20.1
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2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 147/252] soc/tegra: fuse: Correct straps' address for older Tegra124 device trees Sasha Levin
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