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Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/sysdev/fsl_rio.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/sysdev/fsl_rio.c676
1 files changed, 0 insertions, 676 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/sysdev/fsl_rio.c b/ANDROID_3.4.5/arch/powerpc/sysdev/fsl_rio.c
deleted file mode 100644
index 5b6f5560..00000000
--- a/ANDROID_3.4.5/arch/powerpc/sysdev/fsl_rio.c
+++ /dev/null
@@ -1,676 +0,0 @@
-/*
- * 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>
- *
- * 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.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/dma-mapping.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/of_platform.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <asm/machdep.h>
-
-#include "fsl_rio.h"
-
-#undef DEBUG_PW /* Port-Write debugging */
-
-#define RIO_PORT1_EDCSR 0x0640
-#define RIO_PORT2_EDCSR 0x0680
-#define RIO_PORT1_IECSR 0x10130
-#define RIO_PORT2_IECSR 0x101B0
-
-#define RIO_GCCSR 0x13c
-#define RIO_ESCSR 0x158
-#define ESCSR_CLEAR 0x07120204
-#define RIO_PORT2_ESCSR 0x178
-#define RIO_CCSR 0x15c
-#define RIO_LTLEDCSR_IER 0x80000000
-#define RIO_LTLEDCSR_PRT 0x01000000
-#define IECSR_CLEAR 0x80000000
-#define RIO_ISR_AACR 0x10120
-#define RIO_ISR_AACR_AA 0x1 /* Accept All ID */
-
-#define __fsl_read_rio_config(x, addr, err, op) \
- __asm__ __volatile__( \
- "1: "op" %1,0(%2)\n" \
- " eieio\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: li %1,-1\n" \
- " li %0,%3\n" \
- " b 2b\n" \
- ".section __ex_table,\"a\"\n" \
- PPC_LONG_ALIGN "\n" \
- PPC_LONG "1b,3b\n" \
- ".text" \
- : "=r" (err), "=r" (x) \
- : "b" (addr), "i" (-EFAULT), "0" (err))
-
-void __iomem *rio_regs_win;
-void __iomem *rmu_regs_win;
-resource_size_t rio_law_start;
-
-struct fsl_rio_dbell *dbell;
-struct fsl_rio_pw *pw;
-
-#ifdef CONFIG_E500
-int fsl_rio_mcheck_exception(struct pt_regs *regs)
-{
- const struct exception_table_entry *entry;
- unsigned long reason;
-
- if (!rio_regs_win)
- return 0;
-
- reason = in_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR));
- if (reason & (RIO_LTLEDCSR_IER | RIO_LTLEDCSR_PRT)) {
- /* Check if we are prepared to handle this fault */
- entry = search_exception_tables(regs->nip);
- if (entry) {
- pr_debug("RIO: %s - MC Exception handled\n",
- __func__);
- out_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR),
- 0);
- regs->msr |= MSR_RI;
- regs->nip = entry->fixup;
- return 1;
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(fsl_rio_mcheck_exception);
-#endif
-
-/**
- * fsl_local_config_read - Generate a MPC85xx local config space read
- * @mport: RapidIO master port info
- * @index: ID of RapdiIO interface
- * @offset: Offset into configuration space
- * @len: Length (in bytes) of the maintenance transaction
- * @data: Value to be read into
- *
- * Generates a MPC85xx local configuration space read. Returns %0 on
- * success or %-EINVAL on failure.
- */
-static int fsl_local_config_read(struct rio_mport *mport,
- int index, u32 offset, int len, u32 *data)
-{
- struct rio_priv *priv = mport->priv;
- pr_debug("fsl_local_config_read: index %d offset %8.8x\n", index,
- offset);
- *data = in_be32(priv->regs_win + offset);
-
- return 0;
-}
-
-/**
- * fsl_local_config_write - Generate a MPC85xx local config space write
- * @mport: RapidIO master port info
- * @index: ID of RapdiIO interface
- * @offset: Offset into configuration space
- * @len: Length (in bytes) of the maintenance transaction
- * @data: Value to be written
- *
- * Generates a MPC85xx local configuration space write. Returns %0 on
- * success or %-EINVAL on failure.
- */
-static int fsl_local_config_write(struct rio_mport *mport,
- int index, u32 offset, int len, u32 data)
-{
- struct rio_priv *priv = mport->priv;
- pr_debug
- ("fsl_local_config_write: index %d offset %8.8x data %8.8x\n",
- index, offset, data);
- out_be32(priv->regs_win + offset, data);
-
- return 0;
-}
-
-/**
- * fsl_rio_config_read - Generate a MPC85xx read maintenance transaction
- * @mport: RapidIO master port info
- * @index: ID of RapdiIO interface
- * @destid: Destination ID of transaction
- * @hopcount: Number of hops to target device
- * @offset: Offset into configuration space
- * @len: Length (in bytes) of the maintenance transaction
- * @val: Location to be read into
- *
- * Generates a MPC85xx read maintenance transaction. Returns %0 on
- * success or %-EINVAL on failure.
- */
-static int
-fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
- u8 hopcount, u32 offset, int len, u32 *val)
-{
- struct rio_priv *priv = mport->priv;
- u8 *data;
- u32 rval, err = 0;
-
- pr_debug
- ("fsl_rio_config_read:"
- " index %d destid %d hopcount %d offset %8.8x len %d\n",
- index, destid, hopcount, offset, len);
-
- /* 16MB maintenance window possible */
- /* allow only aligned access to maintenance registers */
- if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
- return -EINVAL;
-
- out_be32(&priv->maint_atmu_regs->rowtar,
- (destid << 22) | (hopcount << 12) | (offset >> 12));
- out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
-
- data = (u8 *) priv->maint_win + (offset & (RIO_MAINT_WIN_SIZE - 1));
- switch (len) {
- case 1:
- __fsl_read_rio_config(rval, data, err, "lbz");
- break;
- case 2:
- __fsl_read_rio_config(rval, data, err, "lhz");
- break;
- case 4:
- __fsl_read_rio_config(rval, data, err, "lwz");
- break;
- default:
- return -EINVAL;
- }
-
- if (err) {
- pr_debug("RIO: cfg_read error %d for %x:%x:%x\n",
- err, destid, hopcount, offset);
- }
-
- *val = rval;
-
- return err;
-}
-
-/**
- * fsl_rio_config_write - Generate a MPC85xx write maintenance transaction
- * @mport: RapidIO master port info
- * @index: ID of RapdiIO interface
- * @destid: Destination ID of transaction
- * @hopcount: Number of hops to target device
- * @offset: Offset into configuration space
- * @len: Length (in bytes) of the maintenance transaction
- * @val: Value to be written
- *
- * Generates an MPC85xx write maintenance transaction. Returns %0 on
- * success or %-EINVAL on failure.
- */
-static int
-fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
- u8 hopcount, u32 offset, int len, u32 val)
-{
- struct rio_priv *priv = mport->priv;
- u8 *data;
- pr_debug
- ("fsl_rio_config_write:"
- " index %d destid %d hopcount %d offset %8.8x len %d val %8.8x\n",
- index, destid, hopcount, offset, len, val);
-
- /* 16MB maintenance windows possible */
- /* allow only aligned access to maintenance registers */
- if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
- return -EINVAL;
-
- out_be32(&priv->maint_atmu_regs->rowtar,
- (destid << 22) | (hopcount << 12) | (offset >> 12));
- out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
-
- data = (u8 *) priv->maint_win + (offset & (RIO_MAINT_WIN_SIZE - 1));
- switch (len) {
- case 1:
- out_8((u8 *) data, val);
- break;
- case 2:
- out_be16((u16 *) data, val);
- break;
- case 4:
- out_be32((u32 *) data, val);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-void fsl_rio_port_error_handler(int offset)
-{
- /*XXX: Error recovery is not implemented, we just clear errors */
- out_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR), 0);
-
- if (offset == 0) {
- out_be32((u32 *)(rio_regs_win + RIO_PORT1_EDCSR), 0);
- out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), IECSR_CLEAR);
- out_be32((u32 *)(rio_regs_win + RIO_ESCSR), ESCSR_CLEAR);
- } else {
- out_be32((u32 *)(rio_regs_win + RIO_PORT2_EDCSR), 0);
- out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), IECSR_CLEAR);
- out_be32((u32 *)(rio_regs_win + RIO_PORT2_ESCSR), ESCSR_CLEAR);
- }
-}
-static inline void fsl_rio_info(struct device *dev, u32 ccsr)
-{
- const char *str;
- if (ccsr & 1) {
- /* Serial phy */
- switch (ccsr >> 30) {
- case 0:
- str = "1";
- break;
- case 1:
- str = "4";
- break;
- default:
- str = "Unknown";
- break;
- }
- dev_info(dev, "Hardware port width: %s\n", str);
-
- switch ((ccsr >> 27) & 7) {
- case 0:
- str = "Single-lane 0";
- break;
- case 1:
- str = "Single-lane 2";
- break;
- case 2:
- str = "Four-lane";
- break;
- default:
- str = "Unknown";
- break;
- }
- dev_info(dev, "Training connection status: %s\n", str);
- } else {
- /* Parallel phy */
- if (!(ccsr & 0x80000000))
- dev_info(dev, "Output port operating in 8-bit mode\n");
- if (!(ccsr & 0x08000000))
- dev_info(dev, "Input port operating in 8-bit mode\n");
- }
-}
-
-/**
- * fsl_rio_setup - Setup Freescale PowerPC RapidIO interface
- * @dev: platform_device pointer
- *
- * Initializes MPC85xx RapidIO hardware interface, configures
- * master port with system-specific info, and registers the
- * master port with the RapidIO subsystem.
- */
-int fsl_rio_setup(struct platform_device *dev)
-{
- struct rio_ops *ops;
- struct rio_mport *port;
- struct rio_priv *priv;
- int rc = 0;
- const u32 *dt_range, *cell, *port_index;
- u32 active_ports = 0;
- struct resource regs, rmu_regs;
- struct device_node *np, *rmu_node;
- int rlen;
- u32 ccsr;
- u64 range_start, range_size;
- int paw, aw, sw;
- u32 i;
- static int tmp;
- struct device_node *rmu_np[MAX_MSG_UNIT_NUM] = {NULL};
-
- if (!dev->dev.of_node) {
- dev_err(&dev->dev, "Device OF-Node is NULL");
- return -ENODEV;
- }
-
- rc = of_address_to_resource(dev->dev.of_node, 0, &regs);
- if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- dev->dev.of_node->full_name);
- return -EFAULT;
- }
- dev_info(&dev->dev, "Of-device full name %s\n",
- dev->dev.of_node->full_name);
- dev_info(&dev->dev, "Regs: %pR\n", &regs);
-
- rio_regs_win = ioremap(regs.start, resource_size(&regs));
- if (!rio_regs_win) {
- dev_err(&dev->dev, "Unable to map rio register window\n");
- rc = -ENOMEM;
- goto err_rio_regs;
- }
-
- ops = kzalloc(sizeof(struct rio_ops), GFP_KERNEL);
- if (!ops) {
- rc = -ENOMEM;
- goto err_ops;
- }
- ops->lcread = fsl_local_config_read;
- ops->lcwrite = fsl_local_config_write;
- ops->cread = fsl_rio_config_read;
- ops->cwrite = fsl_rio_config_write;
- ops->dsend = fsl_rio_doorbell_send;
- ops->pwenable = fsl_rio_pw_enable;
- ops->open_outb_mbox = fsl_open_outb_mbox;
- ops->open_inb_mbox = fsl_open_inb_mbox;
- ops->close_outb_mbox = fsl_close_outb_mbox;
- ops->close_inb_mbox = fsl_close_inb_mbox;
- ops->add_outb_message = fsl_add_outb_message;
- ops->add_inb_buffer = fsl_add_inb_buffer;
- ops->get_inb_message = fsl_get_inb_message;
-
- rmu_node = of_parse_phandle(dev->dev.of_node, "fsl,srio-rmu-handle", 0);
- if (!rmu_node)
- goto err_rmu;
- rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
- if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- rmu_node->full_name);
- goto err_rmu;
- }
- rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
- if (!rmu_regs_win) {
- dev_err(&dev->dev, "Unable to map rmu register window\n");
- rc = -ENOMEM;
- goto err_rmu;
- }
- for_each_compatible_node(np, NULL, "fsl,srio-msg-unit") {
- rmu_np[tmp] = np;
- tmp++;
- }
-
- /*set up doobell node*/
- np = of_find_compatible_node(NULL, NULL, "fsl,srio-dbell-unit");
- if (!np) {
- rc = -ENODEV;
- goto err_dbell;
- }
- dbell = kzalloc(sizeof(struct fsl_rio_dbell), GFP_KERNEL);
- if (!(dbell)) {
- dev_err(&dev->dev, "Can't alloc memory for 'fsl_rio_dbell'\n");
- rc = -ENOMEM;
- goto err_dbell;
- }
- dbell->dev = &dev->dev;
- dbell->bellirq = irq_of_parse_and_map(np, 1);
- dev_info(&dev->dev, "bellirq: %d\n", dbell->bellirq);
-
- aw = of_n_addr_cells(np);
- dt_range = of_get_property(np, "reg", &rlen);
- if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
- rc = -ENOMEM;
- goto err_pw;
- }
- range_start = of_read_number(dt_range, aw);
- dbell->dbell_regs = (struct rio_dbell_regs *)(rmu_regs_win +
- (u32)range_start);
-
- /*set up port write node*/
- np = of_find_compatible_node(NULL, NULL, "fsl,srio-port-write-unit");
- if (!np) {
- rc = -ENODEV;
- goto err_pw;
- }
- pw = kzalloc(sizeof(struct fsl_rio_pw), GFP_KERNEL);
- if (!(pw)) {
- dev_err(&dev->dev, "Can't alloc memory for 'fsl_rio_pw'\n");
- rc = -ENOMEM;
- goto err_pw;
- }
- pw->dev = &dev->dev;
- pw->pwirq = irq_of_parse_and_map(np, 0);
- dev_info(&dev->dev, "pwirq: %d\n", pw->pwirq);
- aw = of_n_addr_cells(np);
- dt_range = of_get_property(np, "reg", &rlen);
- if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
- rc = -ENOMEM;
- goto err;
- }
- range_start = of_read_number(dt_range, aw);
- pw->pw_regs = (struct rio_pw_regs *)(rmu_regs_win + (u32)range_start);
-
- /*set up ports node*/
- for_each_child_of_node(dev->dev.of_node, np) {
- port_index = of_get_property(np, "cell-index", NULL);
- if (!port_index) {
- dev_err(&dev->dev, "Can't get %s property 'cell-index'\n",
- np->full_name);
- continue;
- }
-
- dt_range = of_get_property(np, "ranges", &rlen);
- if (!dt_range) {
- dev_err(&dev->dev, "Can't get %s property 'ranges'\n",
- np->full_name);
- continue;
- }
-
- /* Get node address wide */
- cell = of_get_property(np, "#address-cells", NULL);
- if (cell)
- aw = *cell;
- else
- aw = of_n_addr_cells(np);
- /* Get node size wide */
- cell = of_get_property(np, "#size-cells", NULL);
- if (cell)
- sw = *cell;
- else
- sw = of_n_size_cells(np);
- /* Get parent address wide wide */
- paw = of_n_addr_cells(np);
- range_start = of_read_number(dt_range + aw, paw);
- range_size = of_read_number(dt_range + aw + paw, sw);
-
- dev_info(&dev->dev, "%s: LAW start 0x%016llx, size 0x%016llx.\n",
- np->full_name, range_start, range_size);
-
- port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
- if (!port)
- continue;
-
- i = *port_index - 1;
- port->index = (unsigned char)i;
-
- priv = kzalloc(sizeof(struct rio_priv), GFP_KERNEL);
- if (!priv) {
- dev_err(&dev->dev, "Can't alloc memory for 'priv'\n");
- kfree(port);
- continue;
- }
-
- INIT_LIST_HEAD(&port->dbells);
- port->iores.start = range_start;
- port->iores.end = port->iores.start + range_size - 1;
- port->iores.flags = IORESOURCE_MEM;
- port->iores.name = "rio_io_win";
-
- if (request_resource(&iomem_resource, &port->iores) < 0) {
- dev_err(&dev->dev, "RIO: Error requesting master port region"
- " 0x%016llx-0x%016llx\n",
- (u64)port->iores.start, (u64)port->iores.end);
- kfree(priv);
- kfree(port);
- continue;
- }
- sprintf(port->name, "RIO mport %d", i);
-
- priv->dev = &dev->dev;
- port->ops = ops;
- port->priv = priv;
- port->phys_efptr = 0x100;
- priv->regs_win = rio_regs_win;
-
- /* Probe the master port phy type */
- ccsr = in_be32(priv->regs_win + RIO_CCSR + i*0x20);
- port->phy_type = (ccsr & 1) ? RIO_PHY_SERIAL : RIO_PHY_PARALLEL;
- if (port->phy_type == RIO_PHY_PARALLEL) {
- dev_err(&dev->dev, "RIO: Parallel PHY type, unsupported port type!\n");
- release_resource(&port->iores);
- kfree(priv);
- kfree(port);
- continue;
- }
- dev_info(&dev->dev, "RapidIO PHY type: Serial\n");
- /* Checking the port training status */
- if (in_be32((priv->regs_win + RIO_ESCSR + i*0x20)) & 1) {
- dev_err(&dev->dev, "Port %d is not ready. "
- "Try to restart connection...\n", i);
- /* Disable ports */
- out_be32(priv->regs_win
- + RIO_CCSR + i*0x20, 0);
- /* Set 1x lane */
- setbits32(priv->regs_win
- + RIO_CCSR + i*0x20, 0x02000000);
- /* Enable ports */
- setbits32(priv->regs_win
- + RIO_CCSR + i*0x20, 0x00600000);
- msleep(100);
- if (in_be32((priv->regs_win
- + RIO_ESCSR + i*0x20)) & 1) {
- dev_err(&dev->dev,
- "Port %d restart failed.\n", i);
- release_resource(&port->iores);
- kfree(priv);
- kfree(port);
- continue;
- }
- dev_info(&dev->dev, "Port %d restart success!\n", i);
- }
- fsl_rio_info(&dev->dev, ccsr);
-
- port->sys_size = (in_be32((priv->regs_win + RIO_PEF_CAR))
- & RIO_PEF_CTLS) >> 4;
- dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n",
- port->sys_size ? 65536 : 256);
-
- if (rio_register_mport(port)) {
- release_resource(&port->iores);
- kfree(priv);
- kfree(port);
- continue;
- }
- if (port->host_deviceid >= 0)
- out_be32(priv->regs_win + RIO_GCCSR, RIO_PORT_GEN_HOST |
- RIO_PORT_GEN_MASTER | RIO_PORT_GEN_DISCOVERED);
- else
- out_be32(priv->regs_win + RIO_GCCSR,
- RIO_PORT_GEN_MASTER);
-
- priv->atmu_regs = (struct rio_atmu_regs *)(priv->regs_win
- + ((i == 0) ? RIO_ATMU_REGS_PORT1_OFFSET :
- RIO_ATMU_REGS_PORT2_OFFSET));
-
- priv->maint_atmu_regs = priv->atmu_regs + 1;
-
- /* Set to receive any dist ID for serial RapidIO controller. */
- if (port->phy_type == RIO_PHY_SERIAL)
- out_be32((priv->regs_win
- + RIO_ISR_AACR + i*0x80), RIO_ISR_AACR_AA);
-
- /* Configure maintenance transaction window */
- out_be32(&priv->maint_atmu_regs->rowbar,
- port->iores.start >> 12);
- out_be32(&priv->maint_atmu_regs->rowar,
- 0x80077000 | (ilog2(RIO_MAINT_WIN_SIZE) - 1));
-
- priv->maint_win = ioremap(port->iores.start,
- RIO_MAINT_WIN_SIZE);
-
- rio_law_start = range_start;
-
- fsl_rio_setup_rmu(port, rmu_np[i]);
-
- dbell->mport[i] = port;
-
- active_ports++;
- }
-
- if (!active_ports) {
- rc = -ENOLINK;
- goto err;
- }
-
- fsl_rio_doorbell_init(dbell);
- fsl_rio_port_write_init(pw);
-
- return 0;
-err:
- kfree(pw);
-err_pw:
- kfree(dbell);
-err_dbell:
- iounmap(rmu_regs_win);
-err_rmu:
- kfree(ops);
-err_ops:
- iounmap(rio_regs_win);
-err_rio_regs:
- return rc;
-}
-
-/* The probe function for RapidIO peer-to-peer network.
- */
-static int __devinit fsl_of_rio_rpn_probe(struct platform_device *dev)
-{
- printk(KERN_INFO "Setting up RapidIO peer-to-peer network %s\n",
- dev->dev.of_node->full_name);
-
- return fsl_rio_setup(dev);
-};
-
-static const struct of_device_id fsl_of_rio_rpn_ids[] = {
- {
- .compatible = "fsl,srio",
- },
- {},
-};
-
-static struct platform_driver fsl_of_rio_rpn_driver = {
- .driver = {
- .name = "fsl-of-rio",
- .owner = THIS_MODULE,
- .of_match_table = fsl_of_rio_rpn_ids,
- },
- .probe = fsl_of_rio_rpn_probe,
-};
-
-static __init int fsl_of_rio_rpn_init(void)
-{
- return platform_driver_register(&fsl_of_rio_rpn_driver);
-}
-
-subsys_initcall(fsl_of_rio_rpn_init);
generated by cgit (git 2.34.1) at 2025-01-11 06:48:24 +0000