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authorWolfgang Denk <wd@castor.denx.de>2006-05-30 15:56:48 +0200
committerWolfgang Denk <wd@castor.denx.de>2006-05-30 15:56:48 +0200
commitba94a1bba3600d387edba7eb451990d9891e1c2f (patch)
treee84f737ac88e15342b4cab23c9e631987e8ee75e /cpu/ixp/cpu.c
parent5770a1e488621a9e7e344afed7c921ff4e715a63 (diff)
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* Update Intel IXP4xx support
- Add IXP4xx NPE ethernet MAC support - Add support for Intel IXDPG425 board - Add support for Prodrive PDNB3 board - Add IRQ support Patch by Stefan Roese, 23 May 2006 [This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still sufferes from licensing issues. Blame Intel.]
Diffstat (limited to 'cpu/ixp/cpu.c')
-rw-r--r--cpu/ixp/cpu.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/cpu/ixp/cpu.c b/cpu/ixp/cpu.c
index 2a2bd50..7f9f334 100644
--- a/cpu/ixp/cpu.c
+++ b/cpu/ixp/cpu.c
@@ -34,10 +34,47 @@
#include <command.h>
#include <asm/arch/ixp425.h>
+ulong loops_per_jiffy;
+
#ifdef CONFIG_USE_IRQ
DECLARE_GLOBAL_DATA_PTR;
#endif
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo (void)
+{
+ unsigned long id;
+ int speed = 0;
+
+ asm ("mrc p15, 0, %0, c0, c0, 0":"=r" (id));
+
+ puts("CPU: Intel IXP425 at ");
+ switch ((id & 0x000003f0) >> 4) {
+ case 0x1c:
+ loops_per_jiffy = 887467;
+ speed = 533;
+ break;
+
+ case 0x1d:
+ loops_per_jiffy = 666016;
+ speed = 400;
+ break;
+
+ case 0x1f:
+ loops_per_jiffy = 442901;
+ speed = 266;
+ break;
+ }
+
+ if (speed)
+ printf("%d MHz\n", speed);
+ else
+ puts("unknown revision\n");
+
+ return 0;
+}
+#endif /* CONFIG_DISPLAY_CPUINFO */
+
int cpu_init (void)
{
/*
@@ -48,7 +85,9 @@ int cpu_init (void)
FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
#endif
+#if (CONFIG_COMMANDS & CFG_CMD_PCI) || defined (CONFIG_PCI)
pci_init();
+#endif
return 0;
}
@@ -154,3 +193,25 @@ void pci_init(void)
return;
}
*/
+
+#ifdef CONFIG_BOOTCOUNT_LIMIT
+
+void bootcount_store (ulong a)
+{
+ volatile ulong *save_addr = (volatile ulong *)(CFG_BOOTCOUNT_ADDR);
+
+ save_addr[0] = a;
+ save_addr[1] = BOOTCOUNT_MAGIC;
+}
+
+ulong bootcount_load (void)
+{
+ volatile ulong *save_addr = (volatile ulong *)(CFG_BOOTCOUNT_ADDR);
+
+ if (save_addr[1] != BOOTCOUNT_MAGIC)
+ return 0;
+ else
+ return save_addr[0];
+}
+
+#endif /* CONFIG_BOOTCOUNT_LIMIT */