[PATCH] PPC32: IBM PPC4xx-specific OCP support

From: Matt Porter <mporter@kernel.crashing.org>

Merge PPC4xx-specific OCP support for new OCP core.

arch/ppc/syslib/ibm_ocp.c

+#include <linux/module.h>
+#include <asm/ocp.h>
+
+struct ocp_sys_info_data ocp_sys_info = {
+	.opb_bus_freq	=	50000000,	/* OPB Bus Frequency (Hz) */
+	.ebc_bus_freq	=	33333333,	/* EBC Bus Frequency (Hz) */
+};
+
+EXPORT_SYMBOL(ocp_sys_info);

include/asm-ppc/ibm_ocp.h

+/*
+ * ibm_ocp.h
+ *
+ *      (c) Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *          Mipsys - France
+ *
+ *          Derived from work (c) Armin Kuster akuster@pacbell.net
+ *
+ *          Additional support and port to 2.6 LDM/sysfs by
+ *          Matt Porter <mporter@kernel.crashing.org>
+ *          Copyright 2003-2004 MontaVista Software, Inc.
+ *
+ * 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.
+ *
+ */
+#ifdef __KERNEL__
+#ifndef __IBM_OCP_H__
+#define __IBM_OCP_H__
+
+#include <asm/types.h>
+
+/*
+ * IBM 4xx OCP system information
+ */
+struct ocp_sys_info_data {
+	int	opb_bus_freq;	/* OPB Bus Frequency (Hz) */
+	int	ebc_bus_freq;	/* EBC Bus Frequency (Hz) */
+};
+
+extern struct ocp_sys_info_data ocp_sys_info;
+
+/*
+ * EMAC additional data and sysfs support
+ *
+ * Note about mdio_idx: When you have a zmii, it's usually
+ * not necessary, it covers the case of the 405EP which has
+ * the MDIO lines on EMAC0 only
+ *
+ * Note about phy_map: Per EMAC map of PHY ids which should
+ * be probed by emac_probe. Different EMACs can have
+ * overlapping maps.
+ *
+ * Note, this map uses inverse logic for bits:
+ *  0 - id should be probed
+ *  1 - id should be ignored
+ *
+ * Default value of 0x00000000 - will result in usual
+ * auto-detection logic.
+ *
+ */
+
+struct ocp_func_emac_data {
+	int	rgmii_idx;	/* RGMII device index or -1 */
+	int	rgmii_mux;	/* RGMII input of this EMAC */
+	int	zmii_idx;	/* ZMII device index or -1 */
+	int	zmii_mux;	/* ZMII input of this EMAC */
+	int	mal_idx;	/* MAL device index */
+	int	mal_rx_chan;	/* MAL rx channel number */
+	int	mal_tx_chan;	/* MAL tx channel number */
+	int	wol_irq;	/* WOL interrupt */
+	int	mdio_idx;	/* EMAC idx of MDIO master or -1 */
+	int	tah_idx;	/* TAH device index or -1 */
+	int	jumbo;		/* Jumbo frames capable flag */
+	int	phy_mode;	/* PHY type or configurable mode */
+	u8	mac_addr[6];	/* EMAC mac address */
+	u32	phy_map;	/* EMAC phy map */
+};
+
+/* Sysfs support */
+#define OCP_SYSFS_EMAC_DATA()						\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, zmii_idx)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, zmii_mux)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, mal_idx)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, mal_rx_chan)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, mal_tx_chan)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, wol_irq)	\
+OCP_SYSFS_ADDTL(struct ocp_func_emac_data, "%d\n", emac, mdio_idx)	\
+									\
+void ocp_show_emac_data(struct device *dev)				\
+{									\
+	device_create_file(dev, &dev_attr_emac_zmii_idx);		\
+	device_create_file(dev, &dev_attr_emac_zmii_mux);		\
+	device_create_file(dev, &dev_attr_emac_mal_idx);		\
+	device_create_file(dev, &dev_attr_emac_mal_rx_chan);		\
+	device_create_file(dev, &dev_attr_emac_mal_tx_chan);		\
+	device_create_file(dev, &dev_attr_emac_wol_irq);		\
+	device_create_file(dev, &dev_attr_emac_mdio_idx);		\
+}
+
+#ifdef CONFIG_40x
+/*
+ * Helper function to copy MAC addresses from the bd_t to OCP EMAC
+ * additions.
+ *
+ * The range of EMAC indices (inclusive) to be copied are the arguments.
+ */
+static inline void ibm_ocp_set_emac(int start, int end)
+{
+	int i;
+	struct ocp_def *def;
+
+	/* Copy MAC addresses to EMAC additions */
+	for (i=start; i<=end; i++) {
+		def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, i);
+		memcpy(((struct ocp_func_emac_data *)def->additions)->mac_addr,
+				&__res.bi_enetaddr[i],
+				6);
+	}
+}
+#endif
+
+/*
+ * MAL additional data and sysfs support
+ */
+struct ocp_func_mal_data {
+	int	num_tx_chans;	/* Number of TX channels */
+	int	num_rx_chans;	/* Number of RX channels */
+	int 	txeob_irq;	/* TX End Of Buffer IRQ  */
+	int 	rxeob_irq;	/* RX End Of Buffer IRQ  */
+	int	txde_irq;	/* TX Descriptor Error IRQ */
+	int	rxde_irq;	/* RX Descriptor Error IRQ */
+	int	serr_irq;	/* MAL System Error IRQ    */
+};
+
+#define OCP_SYSFS_MAL_DATA()						\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, num_tx_chans)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, num_rx_chans)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, txeob_irq)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, rxeob_irq)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, txde_irq)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, rxde_irq)	\
+OCP_SYSFS_ADDTL(struct ocp_func_mal_data, "%d\n", mal, serr_irq)	\
+									\
+void ocp_show_mal_data(struct device *dev)				\
+{									\
+	device_create_file(dev, &dev_attr_mal_num_tx_chans);		\
+	device_create_file(dev, &dev_attr_mal_num_rx_chans);		\
+	device_create_file(dev, &dev_attr_mal_txeob_irq);		\
+	device_create_file(dev, &dev_attr_mal_rxeob_irq);		\
+	device_create_file(dev, &dev_attr_mal_txde_irq);		\
+	device_create_file(dev, &dev_attr_mal_rxde_irq);		\
+	device_create_file(dev, &dev_attr_mal_serr_irq);		\
+}
+
+/*
+ * IIC additional data and sysfs support
+ */
+struct ocp_func_iic_data {
+	int	fast_mode;	/* IIC fast mode enabled */
+};
+
+#define OCP_SYSFS_IIC_DATA()						\
+OCP_SYSFS_ADDTL(struct ocp_func_iic_data, "%d\n", iic, fast_mode)	\
+									\
+void ocp_show_iic_data(struct device *dev)				\
+{									\
+	device_create_file(dev, &dev_attr_iic_fast_mode);			\
+}
+#endif /* __IBM_OCP_H__ */
+#endif /* __KERNEL__ */