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authorBin Meng2018-10-24 08:36:34 -0500
committerSimon Glass2018-11-14 11:16:28 -0600
commit05e424818bd6181f4045ef5421e7cde9b3fed7a9 (patch)
tree1f4dd3ab08675da7f9f25b5866309bd953bef627
parentad0e8048437e776e687a977a84494852a64f4693 (diff)
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ram: bmips: Remove DM_FLAG_PRE_RELOC flag
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
-rw-r--r--drivers/ram/bmips_ram.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/ram/bmips_ram.c b/drivers/ram/bmips_ram.c
index b5f19c983c..3e1dd9e241 100644
--- a/drivers/ram/bmips_ram.c
+++ b/drivers/ram/bmips_ram.c
@@ -173,5 +173,4 @@ U_BOOT_DRIVER(bmips_ram) = {
173 .probe = bmips_ram_probe, 173 .probe = bmips_ram_probe,
174 .priv_auto_alloc_size = sizeof(struct bmips_ram_priv), 174 .priv_auto_alloc_size = sizeof(struct bmips_ram_priv),
175 .ops = &bmips_ram_ops, 175 .ops = &bmips_ram_ops,
176 .flags = DM_FLAG_PRE_RELOC,
177}; 176};