modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/arm/mach-vexpress/v2m.c
..
..
@@ -1,8 +1,31 @@
1
1
 // SPDX-License-Identifier: GPL-2.0
2
+#include <linux/of.h>
3
+#include <linux/of_address.h>
2
4
 #include <asm/mach/arch.h>
3
5
 
4
6
 #include "core.h"
5
7
 
8
+#define SYS_FLAGSSET		0x030
9
+#define SYS_FLAGSCLR		0x034
10
+
11
+void vexpress_flags_set(u32 data)
12
+{
13
+	static void __iomem *base;
14
+
15
+	if (!base) {
16
+		struct device_node *node = of_find_compatible_node(NULL, NULL,
17
+				"arm,vexpress-sysreg");
18
+
19
+		base = of_iomap(node, 0);
20
+	}
21
+
22
+	if (WARN_ON(!base))
23
+		return;
24
+
25
+	writel(~0, base + SYS_FLAGSCLR);
26
+	writel(data, base + SYS_FLAGSSET);
27
+}
28
+
6
29
 static const char * const v2m_dt_match[] __initconst = {
7
30
 	"arm,vexpress",
8
31
 	NULL,