rtl88x2CE_WiFi_linux driver

hc

2024-05-10 cde9070d9970eef1f7ec2360586c802a16230ad8

 kernel/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h
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@@ -11,11 +11,12 @@
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 #ifndef __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
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 #define __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
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+#include <asm/cpu.h>
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+
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 /*
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  * Override macros used in arch/mips/kernel/head.S.
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  */
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 	.macro	kernel_entry_setup
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-#ifdef CONFIG_CPU_LOONGSON3
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 	.set	push
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 	.set	mips64
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 	/* Set LPA on LOONGSON3 config3 */
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@@ -26,22 +27,31 @@
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 	mfc0	t0, CP0_PAGEGRAIN
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 	or	t0, (0x1 << 29)
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 	mtc0	t0, CP0_PAGEGRAIN
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-#ifdef CONFIG_LOONGSON3_ENHANCEMENT
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 	/* Enable STFill Buffer */
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+	mfc0	t0, CP0_PRID
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+	/* Loongson-3A R4+ */
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+	andi	t1, t0, PRID_IMP_MASK
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+	li	t2, PRID_IMP_LOONGSON_64G
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+	beq     t1, t2, 1f
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+	nop
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+	/* Loongson-3A R2/R3 */
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+	andi	t0, (PRID_IMP_MASK | PRID_REV_MASK)
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+	slti	t0, t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
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+	bnez	t0, 2f
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+	nop
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+1:
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 	mfc0	t0, CP0_CONFIG6
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 	or	t0, 0x100
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 	mtc0	t0, CP0_CONFIG6
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-#endif
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+2:
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 	_ehb
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 	.set	pop
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-#endif
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 	.endm
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 /*
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  * Do SMP slave processor setup.
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  */
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 	.macro	smp_slave_setup
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-#ifdef CONFIG_CPU_LOONGSON3
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 	.set	push
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 	.set	mips64
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 	/* Set LPA on LOONGSON3 config3 */
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@@ -52,15 +62,25 @@
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 	mfc0	t0, CP0_PAGEGRAIN
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 	or	t0, (0x1 << 29)
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 	mtc0	t0, CP0_PAGEGRAIN
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-#ifdef CONFIG_LOONGSON3_ENHANCEMENT
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 	/* Enable STFill Buffer */
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+	mfc0	t0, CP0_PRID
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+	/* Loongson-3A R4+ */
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+	andi	t1, t0, PRID_IMP_MASK
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+	li	t2, PRID_IMP_LOONGSON_64G
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+	beq     t1, t2, 1f
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+	nop
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+	/* Loongson-3A R2/R3 */
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+	andi	t0, (PRID_IMP_MASK | PRID_REV_MASK)
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+	slti	t0, t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
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+	bnez	t0, 2f
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+	nop
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+1:
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 	mfc0	t0, CP0_CONFIG6
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 	or	t0, 0x100
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 	mtc0	t0, CP0_CONFIG6
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-#endif
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+2:
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 	_ehb
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 	.set	pop
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-#endif
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 	.endm
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 #endif /* __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H */