m68k: add PCI bus support definitions for the ColdFire M54xx SoC family

Add all the required definitoins to support the ColdFire M54xx SoC PCI
hardware unit. These are strait out of the MCF5475 Reference Manual.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

2 files changed, 141 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/m54xxpci.h b/arch/m68k/include/asm/m54xxpci.h
new file mode 100644
index 00000000000..6fbf54f72f2
--- /dev/null
+++ b/arch/m68k/include/asm/m54xxpci.h
@@ -0,0 +1,138 @@
+/****************************************************************************/
+
+/*
+ *	m54xxpci.h -- ColdFire 547x and 548x PCI bus support
+ *
+ *	(C) Copyright 2011,  Greg Ungerer <gerg@uclinux.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/****************************************************************************/
+#ifndef	M54XXPCI_H
+#define	M54XXPCI_H
+/****************************************************************************/
+
+/*
+ *	The core set of PCI support registers are mapped into the MBAR region.
+ */
+#define	PCIIDR		(CONFIG_MBAR + 0xb00)	/* PCI device/vendor ID */
+#define	PCISCR		(CONFIG_MBAR + 0xb04)	/* PCI status/command */
+#define	PCICCRIR	(CONFIG_MBAR + 0xb08)	/* PCI class/revision */
+#define	PCICR1		(CONFIG_MBAR + 0xb0c)	/* PCI configuration 1 */
+#define	PCIBAR0		(CONFIG_MBAR + 0xb10)	/* PCI base address 0 */
+#define	PCIBAR1		(CONFIG_MBAR + 0xb14)	/* PCI base address 1 */
+#define	PCICCPR		(CONFIG_MBAR + 0xb28)	/* PCI cardbus CIS pointer */
+#define	PCISID		(CONFIG_MBAR + 0xb2c)	/* PCI subsystem IDs */
+#define	PCIERBAR	(CONFIG_MBAR + 0xb30)	/* PCI expansion ROM */
+#define	PCICPR		(CONFIG_MBAR + 0xb34)	/* PCI capabilities pointer */
+#define	PCICR2		(CONFIG_MBAR + 0xb3c)	/* PCI configuration 2 */
+
+#define	PCIGSCR		(CONFIG_MBAR + 0xb60)	/* Global status/control */
+#define	PCITBATR0	(CONFIG_MBAR + 0xb64)	/* Target base translation 0 */
+#define	PCITBATR1	(CONFIG_MBAR + 0xb68)	/* Target base translation 1 */
+#define	PCITCR		(CONFIG_MBAR + 0xb6c)	/* Target control */
+#define	PCIIW0BTAR	(CONFIG_MBAR + 0xb70)	/* Initiator window 0 */
+#define	PCIIW1BTAR	(CONFIG_MBAR + 0xb74)	/* Initiator window 1 */
+#define	PCIIW2BTAR	(CONFIG_MBAR + 0xb78)	/* Initiator window 2 */
+#define	PCIIWCR		(CONFIG_MBAR + 0xb80)	/* Initiator window config */
+#define	PCIICR		(CONFIG_MBAR + 0xb84)	/* Initiator control */
+#define	PCIISR		(CONFIG_MBAR + 0xb88)	/* Initiator status */
+#define	PCICAR		(CONFIG_MBAR + 0xbf8)	/* Configuration address */
+
+#define	PCITPSR		(CONFIG_MBAR + 0x8400)	/* TX packet size */
+#define	PCITSAR		(CONFIG_MBAR + 0x8404)	/* TX start address */
+#define	PCITTCR		(CONFIG_MBAR + 0x8408)	/* TX transaction control */
+#define	PCITER		(CONFIG_MBAR + 0x840c)	/* TX enables */
+#define	PCITNAR		(CONFIG_MBAR + 0x8410)	/* TX next address */
+#define	PCITLWR		(CONFIG_MBAR + 0x8414)	/* TX last word */
+#define	PCITDCR		(CONFIG_MBAR + 0x8418)	/* TX done counts */
+#define	PCITSR		(CONFIG_MBAR + 0x841c)	/* TX status */
+#define	PCITFDR		(CONFIG_MBAR + 0x8440)	/* TX FIFO data */
+#define	PCITFSR		(CONFIG_MBAR + 0x8444)	/* TX FIFO status */
+#define	PCITFCR		(CONFIG_MBAR + 0x8448)	/* TX FIFO control */
+#define	PCITFAR		(CONFIG_MBAR + 0x844c)	/* TX FIFO alarm */
+#define	PCITFRPR	(CONFIG_MBAR + 0x8450)	/* TX FIFO read pointer */
+#define	PCITFWPR	(CONFIG_MBAR + 0x8454)	/* TX FIFO write pointer */
+
+#define	PCIRPSR		(CONFIG_MBAR + 0x8480)	/* RX packet size */
+#define	PCIRSAR		(CONFIG_MBAR + 0x8484)	/* RX start address */
+#define	PCIRTCR		(CONFIG_MBAR + 0x8488)	/* RX transaction control */
+#define	PCIRER		(CONFIG_MBAR + 0x848c)	/* RX enables */
+#define	PCIRNAR		(CONFIG_MBAR + 0x8490)	/* RX next address */
+#define	PCIRDCR		(CONFIG_MBAR + 0x8498)	/* RX done counts */
+#define	PCIRSR		(CONFIG_MBAR + 0x849c)	/* RX status */
+#define	PCIRFDR		(CONFIG_MBAR + 0x84c0)	/* RX FIFO data */
+#define	PCIRFSR		(CONFIG_MBAR + 0x84c4)	/* RX FIFO status */
+#define	PCIRFCR		(CONFIG_MBAR + 0x84c8)	/* RX FIFO control */
+#define	PCIRFAR		(CONFIG_MBAR + 0x84cc)	/* RX FIFO alarm */
+#define	PCIRFRPR	(CONFIG_MBAR + 0x84d0)	/* RX FIFO read pointer */
+#define	PCIRFWPR	(CONFIG_MBAR + 0x84d4)	/* RX FIFO write pointer */
+
+#define	PACR		(CONFIG_MBAR + 0xc00)	/* PCI arbiter control */
+#define	PASR		(COFNIG_MBAR + 0xc04)	/* PCI arbiter status */
+
+/*
+ *	Definitions for the Global status and control register.
+ */
+#define	PCIGSCR_PE	0x20000000		/* Parity error detected */
+#define	PCIGSCR_SE	0x10000000		/* System error detected */
+#define	PCIGSCR_XCLKBIN	0x07000000		/* XLB2CLKIN mask */
+#define	PCIGSCR_PEE	0x00002000		/* Parity error intr enable */
+#define	PCIGSCR_SEE	0x00001000		/* System error intr enable */
+#define	PCIGSCR_RESET	0x00000001		/* Reset bit */
+
+/*
+ *	Bit definitions for the PCICAR configuration address register.
+ */
+#define	PCICAR_E	0x80000000		/* Enable config space */
+#define	PCICAR_BUSN	16			/* Move bus bits */
+#define	PCICAR_DEVFNN	8			/* Move devfn bits */
+#define	PCICAR_DWORDN	0			/* Move dword bits */
+
+/*
+ *	The initiator windows hold the memory and IO mapping information.
+ *	This macro creates the register values from the desired addresses.
+ */
+#define	WXBTAR(hostaddr, pciaddr, size)	\
+			(((hostaddr) & 0xff000000) | \
+			((((size) - 1) & 0xff000000) >> 8) | \
+			(((pciaddr) & 0xff000000) >> 16))
+
+#define	PCIIWCR_W0_MEM	0x00000000		/* Window 0 is memory */
+#define	PCIIWCR_W0_IO	0x08000000		/* Window 0 is IO */
+#define	PCIIWCR_W0_MRD	0x00000000		/* Window 0 memory read */
+#define	PCIIWCR_W0_MRDL	0x02000000		/* Window 0 memory read line */
+#define	PCIIWCR_W0_MRDM	0x04000000		/* Window 0 memory read mult */
+#define	PCIIWCR_W0_E	0x01000000		/* Window 0 enable */
+
+#define	PCIIWCR_W1_MEM	0x00000000		/* Window 0 is memory */
+#define	PCIIWCR_W1_IO	0x00080000		/* Window 0 is IO */
+#define	PCIIWCR_W1_MRD	0x00000000		/* Window 0 memory read */
+#define	PCIIWCR_W1_MRDL	0x00020000		/* Window 0 memory read line */
+#define	PCIIWCR_W1_MRDM	0x00040000		/* Window 0 memory read mult */
+#define	PCIIWCR_W1_E	0x00010000		/* Window 0 enable */
+
+/*
+ *	Bit definitions for the PCIBATR registers.
+ */
+#define	PCITBATR0_E	0x00000001		/* Enable window 0 */
+#define	PCITBATR1_E	0x00000001		/* Enable window 1 */
+
+/*
+ *	PCI arbiter support definitions and macros.
+ */
+#define	PACR_INTMPRI	0x00000001
+#define	PACR_EXTMPRI(x)	(((x) & 0x1f) << 1)
+#define	PACR_INTMINTE	0x00010000
+#define	PACR_EXTMINTE(x) (((x) & 0x1f) << 17)
+#define	PACR_PKMD	0x40000000
+#define	PACR_DS		0x80000000
+
+#define	PCICR1_CL(x)	((x) & 0xf)		/* Cacheline size field */
+#define	PCICR1_LT(x)	(((x) & 0xff) << 8)	/* Latency timer field */
+
+/****************************************************************************/
+#endif	/* M54XXPCI_H */
diff --git a/arch/m68k/include/asm/m54xxsim.h b/arch/m68k/include/asm/m54xxsim.h
index ae56b8848a9..d3c5e0dbdad 100644
--- a/arch/m68k/include/asm/m54xxsim.h
+++ b/arch/m68k/include/asm/m54xxsim.h
@@ -81,4 +81,7 @@
 #define MCF_PAR_PSC_RTS_RTS	(0x30)
 #define MCF_PAR_PSC_CANRX	(0x40)
 
+#define MCF_PAR_PCIBG		(CONFIG_MBAR + 0xa48)	/* PCI bus grant */
+#define MCF_PAR_PCIBR		(CONFIG_MBAR + 0xa4a)	/* PCI */
+
 #endif	/* m54xxsim_h */