[RFC,14/17] hw/sd: Declare device little or big endian
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Message ID 53234db1986b616fc458392fc71408ad2a3526d3.1566467963.git.tony.nguyen@bt.com
State New
Headers show
Series
  • Declare device little or big endian
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Commit Message

Tony Nguyen Aug. 23, 2019, 6:56 p.m. UTC
For each device declared with DEVICE_NATIVE_ENDIAN, find the set of
targets from the set of target/hw/*/device.o.

If the set of targets are all little or all big endian, re-declare
the device endianness as DEVICE_LITTLE_ENDIAN or DEVICE_BIG_ENDIAN
respectively.

This *naive* deduction may result in genuinely native endian devices
being incorrectly declared as little or big endian, but should not
introduce regressions for current targets.

These devices should be re-declared as DEVICE_NATIVE_ENDIAN if 1) it
has a new target with an opposite endian or 2) someone informed knows
better =)

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
---
 hw/sd/pl181.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
index 8033fe455d..f19d8764e8 100644
--- a/hw/sd/pl181.c
+++ b/hw/sd/pl181.c
@@ -451,7 +451,7 @@  static void pl181_write(void *opaque, hwaddr offset,
 static const MemoryRegionOps pl181_ops = {
     .read = pl181_read,
     .write = pl181_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
 static void pl181_reset(DeviceState *d)