From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/arch/nds32/kernel/head.S | 17 ++++-------------
1 files changed, 4 insertions(+), 13 deletions(-)
diff --git a/kernel/arch/nds32/kernel/head.S b/kernel/arch/nds32/kernel/head.S
index c5fdae1..7347f00 100644
--- a/kernel/arch/nds32/kernel/head.S
+++ b/kernel/arch/nds32/kernel/head.S
@@ -3,11 +3,11 @@
#include <linux/linkage.h>
#include <linux/init.h>
+#include <linux/pgtable.h>
#include <asm/ptrace.h>
#include <asm/asm-offsets.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sizes.h>
+#include <linux/sizes.h>
#include <asm/thread_info.h>
#ifdef CONFIG_CPU_BIG_ENDIAN
@@ -123,21 +123,12 @@
andi $r0, $r0, MMU_CFG_mskTBS
srli $r6, $r6, MMU_CFG_offTBW
srli $r0, $r0, MMU_CFG_offTBS
- /*
- * we just map the kernel to the maximum way - 1 of tlb
- * reserver one way for UART VA mapping
- * it will cause page fault if UART mapping cover the kernel mapping
- *
- * direct mapping is not supported now.
- */
- li $r2, 't'
- beqz $r6, __error ! MMU_CFG.TBW = 0 is direct mappin
+ addi $r6, $r6, #0x1 ! MMU_CFG.TBW value -> meaning
addi $r0, $r0, #0x2 ! MMU_CFG.TBS value -> meaning
sll $r0, $r6, $r0 ! entries = k-way * n-set
mul $r6, $r0, $r5 ! max size = entries * page size
/* check kernel image size */
la $r3, (_end - PAGE_OFFSET)
- li $r2, 's'
bgt $r3, $r6, __error
li $r2, #(PHYS_OFFSET + TLB_DATA_kernel_text_attr)
@@ -160,7 +151,7 @@
#endif
mtsr $r3, $TLB_MISC
- mfsr $r0, $MISC_CTL ! Enable BTB and RTP and shadow sp
+ mfsr $r0, $MISC_CTL ! Enable BTB, RTP, shadow sp, and HW_PRE
ori $r0, $r0, #MISC_init
mtsr $r0, $MISC_CTL
--
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