From 74a4d8c26dd3c1e9febcb717cfd6cb6512991a7a Mon Sep 17 00:00:00 2001
From: "Charles.Forsyth" <devnull@localhost>
Date: Fri, 22 Dec 2006 21:39:35 +0000
Subject: 20060303

---
 os/boot/mpc/mem.h | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 os/boot/mpc/mem.h

(limited to 'os/boot/mpc/mem.h')

diff --git a/os/boot/mpc/mem.h b/os/boot/mpc/mem.h
new file mode 100644
index 00000000..f76867a8
--- /dev/null
+++ b/os/boot/mpc/mem.h
@@ -0,0 +1,95 @@
+/*
+ * Memory and machine-specific definitions.  Used in C and assembler.
+ */
+
+/*
+ * Sizes
+ */
+#define	BI2BY		8			/* bits per byte */
+#define BI2WD		32			/* bits per word */
+#define	BY2WD		4			/* bytes per word */
+#define	BY2PG		4096			/* bytes per page */
+#define	WD2PG		(BY2PG/BY2WD)		/* words per page */
+#define	PGSHIFT		12			/* log(BY2PG) */
+#define PGROUND(s)	(((s)+(BY2PG-1))&~(BY2PG-1))
+
+#define	MAXMACH		1			/* max # cpus system can run */
+#define	CACHELINELOG	4
+#define CACHELINESZ	(1<<CACHELINELOG)
+
+/*
+ * Time
+ */
+#define	HZ		(50)				/* clock frequency */
+#define	MS2HZ		(1000/HZ)			/* millisec per clock tick */
+#define	TK2SEC(t)	((t)/HZ)			/* ticks to seconds */
+#define	TK2MS(t)	((((ulong)(t))*1000)/HZ)	/* ticks to milliseconds */
+#define	MS2TK(t)	((((ulong)(t))*HZ)/1000)	/* milliseconds to ticks */
+#define	MHz	1000000
+
+/*
+ * Fundamental values
+ */
+
+#define	KZERO	0	/* bootstrap runs in real mode */
+#define	MACHSIZE	4096
+
+/*
+ *  physical MMU
+ */
+#define KSEG0	0x20000000
+#define	KSEGM	0xE0000000	/* mask to check which seg */
+
+/*
+ * MSR bits
+ */
+
+#define	POW	0x40000	/* enable power mgmt */
+#define	TGPR	0x20000	/* GPR0-3 remapped; 603/603e specific */
+#define	ILE	0x10000	/* interrupts little endian */
+#define	EE	0x08000	/* enable external/decrementer interrupts */
+#define	PR	0x04000	/* =1, user mode */
+#define	FPE	0x02000	/* enable floating point */
+#define	ME	0x01000	/* enable machine check exceptions */
+#define	FE0	0x00800
+#define	SE	0x00400	/* single-step trace */
+#define	BE	0x00200	/* branch trace */
+#define	FE1	0x00100
+#define	IP	0x00040	/* =0, vector to nnnnn; =1, vector to FFFnnnnn */
+#define	IR	0x00020	/* enable instruction address translation */
+#define	DR	0x00010	/* enable data address translation */
+#define	RI	0x00002	/* exception is recoverable */
+#define	LE	0x00001	/* little endian mode */
+
+#define	KMSR	(ME|FE0|FE1|FPE)
+#define	UMSR	(KMSR|PR|EE|IR|DR)
+
+/*
+ * MPC82x addresses; mpc8bug is happy with these
+ */
+#define	BCSRMEM	0x02100000
+#define	INTMEM	0x02200000
+#define	FLASHMEM	0x02800000
+#define	SDRAMMEM	0x03000000
+
+#define	DPRAM	(INTMEM+0x2000)
+#define	DPLEN1	0x400
+#define	DPLEN2	0x200
+#define	DPLEN3	0x100
+#define	DPBASE	(DPRAM+DPLEN1)
+
+#define	SCC1P	(INTMEM+0x3C00)
+#define	I2CP	(INTMEM+0x3C80)
+#define	MISCP	(INTMEM+0x3CB0)
+#define	IDMA1P	(INTMEM+0x3CC0)
+#define	SCC2P	(INTMEM+0x3D00)
+#define	SCC3P	(INTMEM+0x3E00)
+#define	SCC4P	(INTMEM+0x3F00)
+#define	SPIP	(INTMEM+0x3D80)
+#define	TIMERP	(INTMEM+0x3DB0)
+#define	SMC1P	(INTMEM+0x3E80)
+#define	DSP1P	(INTMEM+0x3EC0)
+#define	SMC2P	(INTMEM+0x3F80)
+#define	DSP2P	(INTMEM+0x3FC0)
+
+#define KEEP_ALIVE_KEY 0x55ccaa33	/* clock and rtc register key */
-- 
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