1 files changed, 128 insertions, 0 deletions

diff --git a/arch/mips/pnx8550/common/prom.c b/arch/mips/pnx8550/common/prom.c
new file mode 100644
index 000000000000..32f70097c3c7
--- /dev/null
+++ b/arch/mips/pnx8550/common/prom.c
@@ -0,0 +1,128 @@
+/*
+ *
+ * Per Hallsmark, per.hallsmark@mvista.com
+ *
+ * Based on jmr3927/common/prom.c
+ *
+ * 2004 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/serial_pnx8xxx.h>
+
+#include <asm/bootinfo.h>
+#include <uart.h>
+
+/* #define DEBUG_CMDLINE */
+
+extern int prom_argc;
+extern char **prom_argv, **prom_envp;
+
+typedef struct
+{
+    char *name;
+/*    char *val; */
+}t_env_var;
+
+
+char * prom_getcmdline(void)
+{
+        return &(arcs_cmdline[0]);
+}
+
+void __init prom_init_cmdline(void)
+{
+        int i;
+
+        arcs_cmdline[0] = '\0';
+        for (i = 0; i < prom_argc; i++) {
+                strcat(arcs_cmdline, prom_argv[i]);
+                strcat(arcs_cmdline, " ");
+        }
+}
+
+char *prom_getenv(char *envname)
+{
+        /*
+         * Return a pointer to the given environment variable.
+         * Environment variables are stored in the form of "memsize=64".
+         */
+
+        t_env_var *env = (t_env_var *)prom_envp;
+        int i;
+
+        i = strlen(envname);
+
+        while(env->name) {
+                if(strncmp(envname, env->name, i) == 0) {
+                        return(env->name + strlen(envname) + 1);
+                }
+                env++;
+        }
+        return(NULL);
+}
+
+inline unsigned char str2hexnum(unsigned char c)
+{
+        if(c >= '0' && c <= '9')
+                return c - '0';
+        if(c >= 'a' && c <= 'f')
+                return c - 'a' + 10;
+        if(c >= 'A' && c <= 'F')
+                return c - 'A' + 10;
+        return 0; /* foo */
+}
+
+inline void str2eaddr(unsigned char *ea, unsigned char *str)
+{
+        int i;
+
+        for(i = 0; i < 6; i++) {
+                unsigned char num;
+
+                if((*str == '.') || (*str == ':'))
+                        str++;
+                num = str2hexnum(*str++) << 4;
+                num |= (str2hexnum(*str++));
+                ea[i] = num;
+        }
+}
+
+int get_ethernet_addr(char *ethernet_addr)
+{
+        char *ethaddr_str;
+
+        ethaddr_str = prom_getenv("ethaddr");
+        if (!ethaddr_str) {
+                printk("ethaddr not set in boot prom\n");
+                return -1;
+        }
+        str2eaddr(ethernet_addr, ethaddr_str);
+        return 0;
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+extern int pnx8550_console_port;
+
+/* used by early printk */
+void prom_putchar(char c)
+{
+        if (pnx8550_console_port != -1) {
+                /* Wait until FIFO not full */
+                while( ((ip3106_fifo(UART_BASE, pnx8550_console_port) & PNX8XXX_UART_FIFO_TXFIFO) >> 16) >= 16)
+                        ;
+                /* Send one char */
+                ip3106_fifo(UART_BASE, pnx8550_console_port) = c;
+        }
+}
+
+EXPORT_SYMBOL(get_ethernet_addr);
+EXPORT_SYMBOL(str2eaddr);