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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:58:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:58:22 -0800
commite4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (patch)
tree9eef6998f5bbd1a2c999011d9e0151f00c6e7297 /arch/powerpc/sysdev/fsl_rio.h
parent9753dfe19a85e7e45a34a56f4cb2048bb4f50e27 (diff)
parentef88e3911c0e0301e73fa3b3b2567aabdbe17cc4 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits) powerpc: fix compile error with 85xx/p1010rdb.c powerpc: fix compile error with 85xx/p1023_rds.c powerpc/fsl: add MSI support for the Freescale hypervisor arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree powerpc/fsl: Add support for Integrated Flash Controller powerpc/fsl: update compatiable on fsl 16550 uart nodes powerpc/85xx: fix PCI and localbus properties in p1022ds.dts powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig powerpc/fsl: Update defconfigs to enable some standard FSL HW features powerpc: Add TBI PHY node to first MDIO bus sbc834x: put full compat string in board match check powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit offb: Fix setting of the pseudo-palette for >8bpp offb: Add palette hack for qemu "standard vga" framebuffer offb: Fix bug in calculating requested vram size powerpc/boot: Change the WARN to INFO for boot wrapper overlap message powerpc/44x: Fix build error on currituck platform powerpc/boot: Change the load address for the wrapper to fit the kernel powerpc/44x: Enable CRASH_DUMP for 440x ... Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to the additional sparse-checking code for cputime_t.
Diffstat (limited to 'arch/powerpc/sysdev/fsl_rio.h')
-rw-r--r--arch/powerpc/sysdev/fsl_rio.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.h b/arch/powerpc/sysdev/fsl_rio.h
new file mode 100644
index 000000000000..ae8e27405a0d
--- /dev/null
+++ b/arch/powerpc/sysdev/fsl_rio.h
@@ -0,0 +1,135 @@
+/*
+ * Freescale MPC85xx/MPC86xx RapidIO support
+ *
+ * Copyright 2009 Sysgo AG
+ * Thomas Moll <thomas.moll@sysgo.com>
+ * - fixed maintenance access routines, check for aligned access
+ *
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write message handling
+ * - Added Machine Check exception handling
+ *
+ * Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc.
+ * Zhang Wei <wei.zhang@freescale.com>
+ * Lian Minghuan-B31939 <Minghuan.Lian@freescale.com>
+ * Liu Gang <Gang.Liu@freescale.com>
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * 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.
+ */
+
+#ifndef __FSL_RIO_H
+#define __FSL_RIO_H
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/kfifo.h>
+
+#define RIO_REGS_WIN(mport) (((struct rio_priv *)(mport->priv))->regs_win)
+
+#define RIO_MAINT_WIN_SIZE 0x400000
+#define RIO_LTLEDCSR 0x0608
+
+#define DOORBELL_ROWAR_EN 0x80000000
+#define DOORBELL_ROWAR_TFLOWLV 0x08000000 /* highest priority level */
+#define DOORBELL_ROWAR_PCI 0x02000000 /* PCI window */
+#define DOORBELL_ROWAR_NREAD 0x00040000 /* NREAD */
+#define DOORBELL_ROWAR_MAINTRD 0x00070000 /* maintenance read */
+#define DOORBELL_ROWAR_RES 0x00002000 /* wrtpy: reserverd */
+#define DOORBELL_ROWAR_MAINTWD 0x00007000
+#define DOORBELL_ROWAR_SIZE 0x0000000b /* window size is 4k */
+
+#define RIO_ATMU_REGS_PORT1_OFFSET 0x10c00
+#define RIO_ATMU_REGS_PORT2_OFFSET 0x10e00
+#define RIO_S_DBELL_REGS_OFFSET 0x13400
+#define RIO_S_PW_REGS_OFFSET 0x134e0
+#define RIO_ATMU_REGS_DBELL_OFFSET 0x10C40
+
+#define MAX_MSG_UNIT_NUM 2
+#define MAX_PORT_NUM 4
+
+struct rio_atmu_regs {
+ u32 rowtar;
+ u32 rowtear;
+ u32 rowbar;
+ u32 pad1;
+ u32 rowar;
+ u32 pad2[3];
+};
+
+struct rio_dbell_ring {
+ void *virt;
+ dma_addr_t phys;
+};
+
+struct rio_port_write_msg {
+ void *virt;
+ dma_addr_t phys;
+ u32 msg_count;
+ u32 err_count;
+ u32 discard_count;
+};
+
+struct fsl_rio_dbell {
+ struct rio_mport *mport[MAX_PORT_NUM];
+ struct device *dev;
+ struct rio_dbell_regs __iomem *dbell_regs;
+ struct rio_dbell_ring dbell_ring;
+ int bellirq;
+};
+
+struct fsl_rio_pw {
+ struct device *dev;
+ struct rio_pw_regs __iomem *pw_regs;
+ struct rio_port_write_msg port_write_msg;
+ int pwirq;
+ struct work_struct pw_work;
+ struct kfifo pw_fifo;
+ spinlock_t pw_fifo_lock;
+};
+
+struct rio_priv {
+ struct device *dev;
+ void __iomem *regs_win;
+ struct rio_atmu_regs __iomem *atmu_regs;
+ struct rio_atmu_regs __iomem *maint_atmu_regs;
+ void __iomem *maint_win;
+ void *rmm_handle; /* RapidIO message manager(unit) Handle */
+};
+
+extern void __iomem *rio_regs_win;
+extern void __iomem *rmu_regs_win;
+
+extern resource_size_t rio_law_start;
+
+extern struct fsl_rio_dbell *dbell;
+extern struct fsl_rio_pw *pw;
+
+extern int fsl_rio_setup_rmu(struct rio_mport *mport,
+ struct device_node *node);
+extern int fsl_rio_port_write_init(struct fsl_rio_pw *pw);
+extern int fsl_rio_pw_enable(struct rio_mport *mport, int enable);
+extern void fsl_rio_port_error_handler(int offset);
+extern int fsl_rio_doorbell_init(struct fsl_rio_dbell *dbell);
+
+extern int fsl_rio_doorbell_send(struct rio_mport *mport,
+ int index, u16 destid, u16 data);
+extern int fsl_add_outb_message(struct rio_mport *mport,
+ struct rio_dev *rdev,
+ int mbox, void *buffer, size_t len);
+extern int fsl_open_outb_mbox(struct rio_mport *mport,
+ void *dev_id, int mbox, int entries);
+extern void fsl_close_outb_mbox(struct rio_mport *mport, int mbox);
+extern int fsl_open_inb_mbox(struct rio_mport *mport,
+ void *dev_id, int mbox, int entries);
+extern void fsl_close_inb_mbox(struct rio_mport *mport, int mbox);
+extern int fsl_add_inb_buffer(struct rio_mport *mport, int mbox, void *buf);
+extern void *fsl_get_inb_message(struct rio_mport *mport, int mbox);
+
+#endif