[PATCH] ppc32: add Freescale MPC885ADS board support

This patch adds the Freescale MPC86xADS board support.  The supported
devices are SMC UART and 10Mbit ethernet on SCC1.

The manual for the board says that it "is compatible with the MPC8xxFADS
for software point of view".  That's why this patch extends FADS instead of
introducing a new platform.

FEC is not supported as the "combined FCC/FEC ethernet driver" driver by
Pantelis Antoniou should replace the current FEC driver.

Signed-off-by: Gennadiy Kurtsman <gkurtsman@ru.mvista.com>
Signed-off-by: Andrei Konovalov <akonovalov@ru.mvista.com>
Acked-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 195 insertions, 6 deletions

diff --git a/arch/ppc/platforms/fads.h b/arch/ppc/platforms/fads.h
index 632b8178ce6..b60c56450b6 100644
--- a/arch/ppc/platforms/fads.h
+++ b/arch/ppc/platforms/fads.h
@@ -3,7 +3,18 @@
  * the Motorola 860T FADS board.  Copied from the MBX stuff.
  *
  * Copyright (c) 1998 Dan Malek (dmalek@jlc.net)
+ *
+ * Added MPC86XADS support.
+ * The MPC86xADS manual says the board "is compatible with the MPC8xxFADS
+ * for SW point of view". This is 99% correct.
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ * 2005 (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.
  */
+
 #ifdef __KERNEL__
 #ifndef __ASM_FADS_H__
 #define __ASM_FADS_H__
@@ -12,18 +23,45 @@
 
 #include <asm/ppcboot.h>
 
+#if defined(CONFIG_MPC86XADS)
+
+/* U-Boot maps BCSR to 0xff080000 */
+#define BCSR_ADDR		((uint)0xff080000)
+
+/* MPC86XADS has one more CPLD and an additional BCSR.
+ */
+#define CFG_PHYDEV_ADDR		((uint)0xff0a0000)
+#define BCSR5			((uint)(CFG_PHYDEV_ADDR + 0x300))
+
+#define BCSR5_T1_RST		0x10
+#define BCSR5_ATM155_RST	0x08
+#define BCSR5_ATM25_RST		0x04
+#define BCSR5_MII1_EN		0x02
+#define BCSR5_MII1_RST		0x01
+
+/* There is no PHY link change interrupt */
+#define PHY_INTERRUPT	(-1)
+
+#else /* FADS */
+
 /* Memory map is configured by the PROM startup.
  * I tried to follow the FADS manual, although the startup PROM
  * dictates this and we simply have to move some of the physical
  * addresses for Linux.
  */
 #define BCSR_ADDR		((uint)0xff010000)
+
+/* PHY link change interrupt */
+#define PHY_INTERRUPT	SIU_IRQ2
+
+#endif /* CONFIG_MPC86XADS */
+
 #define BCSR_SIZE		((uint)(64 * 1024))
-#define	BCSR0			((uint)0xff010000)
-#define	BCSR1			((uint)0xff010004)
-#define	BCSR2			((uint)0xff010008)
-#define	BCSR3			((uint)0xff01000c)
-#define	BCSR4			((uint)0xff010010)
+#define BCSR0			((uint)(BCSR_ADDR + 0x00))
+#define BCSR1			((uint)(BCSR_ADDR + 0x04))
+#define BCSR2			((uint)(BCSR_ADDR + 0x08))
+#define BCSR3			((uint)(BCSR_ADDR + 0x0c))
+#define BCSR4			((uint)(BCSR_ADDR + 0x10))
 
 #define IMAP_ADDR		((uint)0xff000000)
 #define IMAP_SIZE		((uint)(64 * 1024))
@@ -34,8 +72,17 @@
 /* Bits of interest in the BCSRs.
  */
 #define BCSR1_ETHEN		((uint)0x20000000)
+#define BCSR1_IRDAEN		((uint)0x10000000)
 #define BCSR1_RS232EN_1		((uint)0x01000000)
+#define BCSR1_PCCEN		((uint)0x00800000)
+#define BCSR1_PCCVCC0		((uint)0x00400000)
+#define BCSR1_PCCVPP0		((uint)0x00200000)
+#define BCSR1_PCCVPP1		((uint)0x00100000)
+#define BCSR1_PCCVPP_MASK	(BCSR1_PCCVPP0 | BCSR1_PCCVPP1)
 #define BCSR1_RS232EN_2		((uint)0x00040000)
+#define BCSR1_PCCVCC1		((uint)0x00010000)
+#define BCSR1_PCCVCC_MASK	(BCSR1_PCCVCC0 | BCSR1_PCCVCC1)
+
 #define BCSR4_ETHLOOP		((uint)0x80000000)	/* EEST Loopback */
 #define BCSR4_EEFDX		((uint)0x40000000)	/* EEST FDX enable */
 #define BCSR4_FETH_EN		((uint)0x08000000)	/* PHY enable */
@@ -44,14 +91,64 @@
 #define BCSR4_FETHFDE		((uint)0x02000000)	/* PHY FDX advertise */
 #define BCSR4_FETHRST		((uint)0x00200000)	/* PHY Reset */
 
+/* IO_BASE definition for pcmcia.
+ */
+#define _IO_BASE	0x80000000
+#define _IO_BASE_SIZE	0x1000
+
+#ifdef CONFIG_IDE
+#define MAX_HWIFS 1
+#endif
+
 /* Interrupt level assignments.
  */
 #define FEC_INTERRUPT	SIU_LEVEL1	/* FEC interrupt */
-#define PHY_INTERRUPT	SIU_IRQ2	/* PHY link change interrupt */
 
 /* We don't use the 8259.
  */
 #define NR_8259_INTS	0
 
+/* CPM Ethernet through SCC1 or SCC2 */
+
+#ifdef CONFIG_SCC1_ENET		/* Probably 860 variant */
+/* Bits in parallel I/O port registers that have to be set/cleared
+ * to configure the pins for SCC1 use.
+ * TCLK - CLK1, RCLK - CLK2.
+ */
+#define PA_ENET_RXD	((ushort)0x0001)
+#define PA_ENET_TXD	((ushort)0x0002)
+#define PA_ENET_TCLK	((ushort)0x0100)
+#define PA_ENET_RCLK	((ushort)0x0200)
+#define PB_ENET_TENA	((uint)0x00001000)
+#define PC_ENET_CLSN	((ushort)0x0010)
+#define PC_ENET_RENA	((ushort)0x0020)
+
+/* Control bits in the SICR to route TCLK (CLK1) and RCLK (CLK2) to
+ * SCC1.  Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
+ */
+#define SICR_ENET_MASK	((uint)0x000000ff)
+#define SICR_ENET_CLKRT	((uint)0x0000002c)
+#endif /* CONFIG_SCC1_ENET */
+
+#ifdef CONFIG_SCC2_ENET		/* Probably 823/850 variant */
+/* Bits in parallel I/O port registers that have to be set/cleared
+ * to configure the pins for SCC1 use.
+ * TCLK - CLK1, RCLK - CLK2.
+ */
+#define PA_ENET_RXD	((ushort)0x0004)
+#define PA_ENET_TXD	((ushort)0x0008)
+#define PA_ENET_TCLK	((ushort)0x0400)
+#define PA_ENET_RCLK	((ushort)0x0200)
+#define PB_ENET_TENA	((uint)0x00002000)
+#define PC_ENET_CLSN	((ushort)0x0040)
+#define PC_ENET_RENA	((ushort)0x0080)
+
+/* Control bits in the SICR to route TCLK and RCLK to
+ * SCC2.  Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
+ */
+#define SICR_ENET_MASK	((uint)0x0000ff00)
+#define SICR_ENET_CLKRT	((uint)0x00002e00)
+#endif /* CONFIG_SCC2_ENET */
+
 #endif /* __ASM_FADS_H__ */
 #endif /* __KERNEL__ */
diff --git a/arch/ppc/platforms/mpc885ads.h b/arch/ppc/platforms/mpc885ads.h
new file mode 100644
index 00000000000..eb386635b0f
--- /dev/null
+++ b/arch/ppc/platforms/mpc885ads.h
@@ -0,0 +1,92 @@
+/*
+ * A collection of structures, addresses, and values associated with
+ * the Freescale MPC885ADS board.
+ * Copied from the FADS stuff.
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * 2005 (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.
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_MPC885ADS_H__
+#define __ASM_MPC885ADS_H__
+
+#include <linux/config.h>
+
+#include <asm/ppcboot.h>
+
+/* U-Boot maps BCSR to 0xff080000 */
+#define BCSR_ADDR		((uint)0xff080000)
+#define BCSR_SIZE		((uint)32)
+#define BCSR0			((uint)(BCSR_ADDR + 0x00))
+#define BCSR1			((uint)(BCSR_ADDR + 0x04))
+#define BCSR2			((uint)(BCSR_ADDR + 0x08))
+#define BCSR3			((uint)(BCSR_ADDR + 0x0c))
+#define BCSR4			((uint)(BCSR_ADDR + 0x10))
+
+#define CFG_PHYDEV_ADDR		((uint)0xff0a0000)
+#define BCSR5			((uint)(CFG_PHYDEV_ADDR + 0x300))
+
+#define IMAP_ADDR		((uint)0xff000000)
+#define IMAP_SIZE		((uint)(64 * 1024))
+
+#define PCMCIA_MEM_ADDR		((uint)0xff020000)
+#define PCMCIA_MEM_SIZE		((uint)(64 * 1024))
+
+/* Bits of interest in the BCSRs.
+ */
+#define BCSR1_ETHEN		((uint)0x20000000)
+#define BCSR1_IRDAEN		((uint)0x10000000)
+#define BCSR1_RS232EN_1		((uint)0x01000000)
+#define BCSR1_PCCEN		((uint)0x00800000)
+#define BCSR1_PCCVCC0		((uint)0x00400000)
+#define BCSR1_PCCVPP0		((uint)0x00200000)
+#define BCSR1_PCCVPP1		((uint)0x00100000)
+#define BCSR1_PCCVPP_MASK	(BCSR1_PCCVPP0 | BCSR1_PCCVPP1)
+#define BCSR1_RS232EN_2		((uint)0x00040000)
+#define BCSR1_PCCVCC1		((uint)0x00010000)
+#define BCSR1_PCCVCC_MASK	(BCSR1_PCCVCC0 | BCSR1_PCCVCC1)
+
+#define BCSR4_ETH10_RST		((uint)0x80000000)	/* 10Base-T PHY reset*/
+#define BCSR4_USB_LO_SPD	((uint)0x04000000)
+#define BCSR4_USB_VCC		((uint)0x02000000)
+#define BCSR4_USB_FULL_SPD	((uint)0x00040000)
+#define BCSR4_USB_EN		((uint)0x00020000)
+
+#define BCSR5_MII2_EN		0x40
+#define BCSR5_MII2_RST		0x20
+#define BCSR5_T1_RST		0x10
+#define BCSR5_ATM155_RST	0x08
+#define BCSR5_ATM25_RST		0x04
+#define BCSR5_MII1_EN		0x02
+#define BCSR5_MII1_RST		0x01
+
+/* Interrupt level assignments */
+#define PHY_INTERRUPT	SIU_IRQ7	/* PHY link change interrupt */
+#define SIU_INT_FEC1	SIU_LEVEL1	/* FEC1 interrupt */
+#define SIU_INT_FEC2	SIU_LEVEL3	/* FEC2 interrupt */
+#define FEC_INTERRUPT	SIU_INT_FEC1	/* FEC interrupt */
+
+/* We don't use the 8259 */
+#define NR_8259_INTS	0
+
+/* CPM Ethernet through SCC3 */
+#define PA_ENET_RXD	((ushort)0x0040)
+#define PA_ENET_TXD	((ushort)0x0080)
+#define PE_ENET_TCLK	((uint)0x00004000)
+#define PE_ENET_RCLK	((uint)0x00008000)
+#define PE_ENET_TENA	((uint)0x00000010)
+#define PC_ENET_CLSN	((ushort)0x0400)
+#define PC_ENET_RENA	((ushort)0x0800)
+
+/* Control bits in the SICR to route TCLK (CLK5) and RCLK (CLK6) to
+ * SCC3.  Also, make sure GR3 (bit 8) and SC3 (bit 9) are zero */
+#define SICR_ENET_MASK	((uint)0x00ff0000)
+#define SICR_ENET_CLKRT	((uint)0x002c0000)
+
+#endif /* __ASM_MPC885ADS_H__ */
+#endif /* __KERNEL__ */