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authorSimon Glass <sjg@chromium.org>2021-03-15 17:25:40 +1300
committerSimon Glass <sjg@chromium.org>2021-03-26 17:03:09 +1300
commitcfb9c9b77c29f48ae2c71ff30ca294bdaf369d87 (patch)
tree9852a1cb811d66aef1cb045cc28679efe4b90105 /drivers/core
parentd5cc19288e00cd287a13717f495d5f1a517feffd (diff)
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dm: core: Use separate priv/plat data region
Make use of the new priv/plat data region if enabled. This is implemented as a simple offset from the position set up by dtoc to the new position. So long as all access goes through dm_priv_to_rw() this is safe. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core')
-rw-r--r--drivers/core/device.c12
-rw-r--r--drivers/core/root.c9
2 files changed, 15 insertions, 6 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 06d2467..cb960f8 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -600,7 +600,7 @@ void *dev_get_plat(const struct udevice *dev)
return NULL;
}
- return dev->plat_;
+ return dm_priv_to_rw(dev->plat_);
}
void *dev_get_parent_plat(const struct udevice *dev)
@@ -610,7 +610,7 @@ void *dev_get_parent_plat(const struct udevice *dev)
return NULL;
}
- return dev->parent_plat_;
+ return dm_priv_to_rw(dev->parent_plat_);
}
void *dev_get_uclass_plat(const struct udevice *dev)
@@ -620,7 +620,7 @@ void *dev_get_uclass_plat(const struct udevice *dev)
return NULL;
}
- return dev->uclass_plat_;
+ return dm_priv_to_rw(dev->uclass_plat_);
}
void *dev_get_priv(const struct udevice *dev)
@@ -630,7 +630,7 @@ void *dev_get_priv(const struct udevice *dev)
return NULL;
}
- return dev->priv_;
+ return dm_priv_to_rw(dev->priv_);
}
void *dev_get_uclass_priv(const struct udevice *dev)
@@ -640,7 +640,7 @@ void *dev_get_uclass_priv(const struct udevice *dev)
return NULL;
}
- return dev->uclass_priv_;
+ return dm_priv_to_rw(dev->uclass_priv_);
}
void *dev_get_parent_priv(const struct udevice *dev)
@@ -650,7 +650,7 @@ void *dev_get_parent_priv(const struct udevice *dev)
return NULL;
}
- return dev->parent_priv_;
+ return dm_priv_to_rw(dev->parent_priv_);
}
static int device_get_device_tail(struct udevice *dev, int ret,
diff --git a/drivers/core/root.c b/drivers/core/root.c
index 82b3c7d..d9a19c5 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -347,6 +347,15 @@ __weak int dm_scan_other(bool pre_reloc_only)
return 0;
}
+#if CONFIG_IS_ENABLED(OF_PLATDATA_INST) && CONFIG_IS_ENABLED(READ_ONLY)
+void *dm_priv_to_rw(void *priv)
+{
+ long offset = priv - (void *)__priv_data_start;
+
+ return gd_dm_priv_base() + offset;
+}
+#endif
+
/**
* dm_scan() - Scan tables to bind devices
*