patch-2.4.20 linux-2.4.20/arch/mips/momentum/ocelot_g/prom.c
Next file: linux-2.4.20/arch/mips/momentum/ocelot_g/reset.c
Previous file: linux-2.4.20/arch/mips/momentum/ocelot_g/pci.c
Back to the patch index
Back to the overall index
- Lines: 101
- Date:
Thu Nov 28 15:53:10 2002
- Orig file:
linux-2.4.19/arch/mips/momentum/ocelot_g/prom.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/arch/mips/momentum/ocelot_g/prom.c linux-2.4.20/arch/mips/momentum/ocelot_g/prom.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2002 Momentum Computer Inc.
+ * Author: Matthew Dharm <mdharm@momenco.com>
+ *
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+
+#include "gt64240.h"
+#include "ocelot_pld.h"
+
+struct callvectors {
+ int (*open) (char*, int, int);
+ int (*close) (int);
+ int (*read) (int, void*, int);
+ int (*write) (int, void*, int);
+ off_t (*lseek) (int, off_t, int);
+ int (*printf) (const char*, ...);
+ void (*cacheflush) (void);
+ char* (*gets) (char*);
+};
+
+struct callvectors* debug_vectors;
+char arcs_cmdline[CL_SIZE];
+
+extern unsigned long gt64240_base;
+extern unsigned long bus_clock;
+
+#ifdef CONFIG_GALILLEO_GT64240_ETH
+extern unsigned char prom_mac_addr_base[6];
+#endif
+
+const char *get_system_type(void)
+{
+ return "Momentum Ocelot";
+}
+
+/* [jsun@junsun.net] PMON passes arguments in C main() style */
+void __init prom_init(int argc, char **arg, char** env, struct callvectors *cv)
+{
+ int i;
+ uint32_t tmp;
+
+ /* save the PROM vectors for debugging use */
+ debug_vectors = cv;
+
+ /* arg[0] is "g", the rest is boot parameters */
+ arcs_cmdline[0] = '\0';
+ for (i = 1; i < argc; i++) {
+ if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
+ >= sizeof(arcs_cmdline))
+ break;
+ strcat(arcs_cmdline, arg[i]);
+ strcat(arcs_cmdline, " ");
+ }
+
+ mips_machgroup = MACH_GROUP_MOMENCO;
+ mips_machtype = MACH_MOMENCO_OCELOT_G;
+
+#ifdef CONFIG_GALILLEO_GT64240_ETH
+ /* get the base MAC address for on-board ethernet ports */
+ memcpy(prom_mac_addr_base, (void*)0xfc807cf2, 6);
+#endif
+
+ while (*env) {
+ if (strncmp("gtbase", *env, strlen("gtbase")) == 0) {
+ gt64240_base = simple_strtol(*env + strlen("gtbase="),
+ NULL, 16);
+ }
+ if (strncmp("busclock", *env, strlen("busclock")) == 0) {
+ bus_clock = simple_strtol(*env + strlen("busclock="),
+ NULL, 10);
+ }
+ *env++;
+ }
+
+ debug_vectors->printf("Booting Linux kernel...\n");
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
+{
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)