From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值
---
kernel/arch/mips/alchemy/common/prom.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/kernel/arch/mips/alchemy/common/prom.c b/kernel/arch/mips/alchemy/common/prom.c
index af312b5..d910c0a 100644
--- a/kernel/arch/mips/alchemy/common/prom.c
+++ b/kernel/arch/mips/alchemy/common/prom.c
@@ -34,6 +34,9 @@
*/
#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/memblock.h>
+#include <linux/sizes.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
@@ -76,6 +79,24 @@
return NULL;
}
+void __init prom_init(void)
+{
+ unsigned char *memsize_str;
+ unsigned long memsize;
+
+ prom_argc = (int)fw_arg0;
+ prom_argv = (char **)fw_arg1;
+ prom_envp = (char **)fw_arg2;
+
+ prom_init_cmdline();
+
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+ memsize = SZ_64M; /* minimum memsize is 64MB RAM */
+
+ memblock_add(0, memsize);
+}
+
static inline unsigned char str2hexnum(unsigned char c)
{
if (c >= '0' && c <= '9')
--
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