From: Dmitry Osipenko <digetx@gmail.com>
Date: Wed, 18 Dec 2019 18:23:03 +0000 (+0300)
Subject: soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2d9ea1934f8ef0dfb862d103389562cc28b4fc03;p=linux.git

soc/tegra: fuse: Correct straps' address for older Tegra124 device trees

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register if machine uses an old outdated device tree.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@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index 3a787a30c3b1b..6259390f68f40 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -121,7 +121,7 @@ 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 {