This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / mips / philips / pnx8550 / common / prom.c

diff --git a/arch/mips/philips/pnx8550/common/prom.c b/arch/mips/philips/pnx8550/common/prom.c
new file mode 100644 (file)
index 0000000..70aac97
--- /dev/null
+++ b/arch/mips/philips/pnx8550/common/prom.c
@@ -0,0 +1,138 @@
+/*
+ *
+ * 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_ip3106.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  prom_init_cmdline(void)
+{
+       char *cp;
+       int actr;
+
+       actr = 1; /* Always ignore argv[0] */
+
+       cp = &(arcs_cmdline[0]);
+       while(actr < prom_argc) {
+               strcpy(cp, prom_argv[actr]);
+               cp += strlen(prom_argv[actr]);
+               *cp++ = ' ';
+               actr++;
+       }
+       if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
+               --cp;
+       *cp = '\0';
+}
+
+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;
+}
+
+unsigned long __init prom_free_prom_memory(void)
+{
+       return 0;
+}
+
+extern int pnx8550_console_port;
+
+/* used by prom_printf */
+void prom_putchar(char c)
+{
+       if (pnx8550_console_port != -1) {
+               /* Wait until FIFO not full */
+               while( ((ip3106_fifo(UART_BASE, pnx8550_console_port) & IP3106_UART_FIFO_TXFIFO) >> 16) >= 16)
+                       ;
+               /* Send one char */
+               ip3106_fifo(UART_BASE, pnx8550_console_port) = c;
+       }
+}
+
+EXPORT_SYMBOL(prom_getcmdline);
+EXPORT_SYMBOL(get_ethernet_addr);
+EXPORT_SYMBOL(str2eaddr);