add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/arch/powerpc/include/asm/dma.h
..
..
@@ -151,10 +151,9 @@
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 #define DMA2_EXT_REG		0x4D6
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 #ifndef __powerpc64__
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-    /* in arch/ppc/kernel/setup.c -- Cort */
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+    /* in arch/powerpc/kernel/setup_32.c -- Cort */
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     extern unsigned int DMA_MODE_WRITE;
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     extern unsigned int DMA_MODE_READ;
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-    extern unsigned long ISA_DMA_THRESHOLD;
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 #else
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     #define DMA_MODE_READ	0x44	/* I/O to memory, no autoinit, increment, single mode */
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     #define DMA_MODE_WRITE	0x48	/* memory to I/O, no autoinit, increment, single mode */