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realtek: rt-loader: fix chip revision printout

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There is currently a mismatch in the detection of the chip type.
rt-loader and the kernel give different revisions. E.g.

rt-loader: Running on RTL9313 (chip id 6567A) with 256MB
kernel: Realtek RTL9313 rev B (6567) SoC with 256 MB

Realtek internal version numbering is

- for RTL838x: 1=A, 2=B, ...
- for others: 0=A, 1=B, ...

rt-loader does not differentiate that. Adapt the calculation to
give a consistent picture.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21498
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen 2026-01-11 14:43:07 +01:00 • committed by Robert Marko
parent 10ae743260
commit 168f5609af
1 changed files with 5 additions and 3 deletions
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8
target/linux/realtek/image/rt-loader/src/board.c
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@ -91,10 +91,12 @@ found:
val = ioread32(reg + 4);
chip_id = val & 0xffff;
if (model_id < 0x9300)
chip_version = val >> 16 & 0x1f;
if (model_id < 0x8390)
chip_version = (val >> 16) & 0x1f;
else if (model_id < 0x9300)
chip_version = ((val >> 16) & 0x1f) + 1;
else
chip_version = val >> 28 & 0x0f;
chip_version = ((val >> 28) & 0x0f) + 1;
snprintf(buffer, len, "RTL%04X%c (chip id %04x%c)",
model_id, model_version ? model_version + 64 : 0,