[PATCH v2 01/13] mfd: pruss mfd driver.
Subhasish Ghosh
subhasish at mistralsolutions.com
Fri Feb 11 09:51:20 EST 2011
This patch adds the pruss MFD driver and associated include files.
Signed-off-by: Subhasish Ghosh <subhasish at mistralsolutions.com>
---
drivers/mfd/Kconfig | 10 +
drivers/mfd/Makefile | 1 +
drivers/mfd/da8xx_pru.c | 446 +++++++++++++++++++++++++++++++
include/linux/mfd/pruss/da8xx_pru.h | 122 +++++++++
include/linux/mfd/pruss/da8xx_prucore.h | 74 +++++
5 files changed, 653 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/da8xx_pru.c
create mode 100644 include/linux/mfd/pruss/da8xx_pru.h
create mode 100644 include/linux/mfd/pruss/da8xx_prucore.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index fd01836..6c437df 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -81,6 +81,16 @@ config MFD_DM355EVM_MSP
boards. MSP430 firmware manages resets and power sequencing,
inputs from buttons and the IR remote, LEDs, an RTC, and more.
+config MFD_DA8XX_PRUSS
+ tristate "Texas Instruments DA8XX PRUSS support"
+ depends on ARCH_DAVINCI && ARCH_DAVINCI_DA850
+ select MFD_CORE
+ help
+ This driver provides support api's for the programmable
+ realtime unit (PRU) present on TI's da8xx processors. It
+ provides basic read, write, config, enable, disable
+ routines to facilitate devices emulated on it.
+
config HTC_EGPIO
bool "HTC EGPIO support"
depends on GENERIC_HARDIRQS && GPIOLIB && ARM
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index a54e2c7..670d6b0 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o
obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o
obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o
+obj-$(CONFIG_MFD_DA8XX_PRUSS) += da8xx_pru.o
obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o
obj-$(CONFIG_MFD_STMPE) += stmpe.o
diff --git a/drivers/mfd/da8xx_pru.c b/drivers/mfd/da8xx_pru.c
new file mode 100644
index 0000000..f7868a4
--- /dev/null
+++ b/drivers/mfd/da8xx_pru.c
@@ -0,0 +1,446 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/mfd/pruss/da8xx_prucore.h>
+#include <linux/mfd/pruss/da8xx_pru.h>
+#include <linux/mfd/core.h>
+#include <linux/io.h>
+#include <mach/da8xx.h>
+
+struct da8xx_pruss {
+ struct device *dev;
+ struct resource *res;
+ struct clk *clk;
+ u32 clk_freq;
+ void __iomem *ioaddr;
+};
+
+u32 pruss_get_clk_freq(struct device *dev)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+
+ return pruss->clk_freq;
+}
+EXPORT_SYMBOL(pruss_get_clk_freq);
+
+u32 pruss_disable(struct device *dev, u8 pruss_num)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ da8xx_prusscore_regs h_pruss;
+ u32 temp_reg;
+
+ if (pruss_num == DA8XX_PRUCORE_0) {
+ /* Disable PRU0 */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7000);
+
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_COUNTENABLE_DISABLE <<
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_ENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_ENABLE_DISABLE <<
+ DA8XX_PRUCORE_CONTROL_ENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_ENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+
+ /* Reset PRU0 */
+ __raw_writel(DA8XX_PRUCORE_CONTROL_RESETVAL,
+ &h_pruss->CONTROL);
+ } else if (pruss_num == DA8XX_PRUCORE_1) {
+ /* Disable PRU1 */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7800);
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_COUNTENABLE_DISABLE <<
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_ENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_ENABLE_DISABLE <<
+ DA8XX_PRUCORE_CONTROL_ENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_ENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+
+ /* Reset PRU1 */
+ __raw_writel(DA8XX_PRUCORE_CONTROL_RESETVAL, &h_pruss->CONTROL);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL(pruss_disable);
+
+u32 pruss_enable(struct device *dev, u8 pruss_num)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ da8xx_prusscore_regs h_pruss;
+
+ if (pruss_num == DA8XX_PRUCORE_0) {
+ /* Reset PRU0 */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7000);
+ __raw_writel(DA8XX_PRUCORE_CONTROL_RESETVAL,
+ &h_pruss->CONTROL);
+ } else if (pruss_num == DA8XX_PRUCORE_1) {
+ /* Reset PRU1 */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7800);
+ __raw_writel(DA8XX_PRUCORE_CONTROL_RESETVAL,
+ &h_pruss->CONTROL);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL(pruss_enable);
+
+/* Load the specified PRU with code */
+u32 pruss_load(struct device *dev, u8 pruss_num,
+ u32 *pruss_code, u32 code_size_in_words)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u32 *pruss_iram;
+ u32 i;
+
+ if (pruss_num == DA8XX_PRUCORE_0) {
+ pruss_iram = (u32 *) ((u32) pruss->ioaddr + 0x8000);
+ } else if (pruss_num == DA8XX_PRUCORE_1) {
+ pruss_iram = (u32 *) ((u32) pruss->ioaddr + 0xc000);
+ } else
+ return -EINVAL;
+
+ pruss_enable(dev, pruss_num);
+
+ /* Copy dMAX code to its instruction RAM */
+ for (i = 0; i < code_size_in_words; i++) {
+ __raw_writel(pruss_code[i], (pruss_iram + i));
+ }
+ return 0;
+}
+EXPORT_SYMBOL(pruss_load);
+
+u32 pruss_run(struct device *dev, u8 pruss_num)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ da8xx_prusscore_regs h_pruss;
+
+ u32 temp_reg;
+
+ if (pruss_num == DA8XX_PRUCORE_0) {
+ /* DA8XX_PRUCORE_0_REGS; */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7000);
+ } else if (pruss_num == DA8XX_PRUCORE_1) {
+ /* DA8XX_PRUCORE_1_REGS; */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7800);
+ } else
+ return -EINVAL;
+
+ /* Enable dMAX, let it execute the code we just copied */
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_COUNTENABLE_ENABLE <<
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ temp_reg = (temp_reg &
+ ~DA8XX_PRUCORE_CONTROL_ENABLE_MASK) |
+ ((DA8XX_PRUCORE_CONTROL_ENABLE_ENABLE <<
+ DA8XX_PRUCORE_CONTROL_ENABLE_SHIFT) &
+ DA8XX_PRUCORE_CONTROL_ENABLE_MASK);
+ __raw_writel(temp_reg, &h_pruss->CONTROL);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_run);
+
+u32 pruss_wait_for_halt(struct device *dev, u8 pruss_num, u32 timeout)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ da8xx_prusscore_regs h_pruss;
+ u32 temp_reg;
+ u32 cnt = timeout;
+
+ if (pruss_num == DA8XX_PRUCORE_0) {
+ /* DA8XX_PRUCORE_0_REGS; */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7000);
+ } else if (pruss_num == DA8XX_PRUCORE_1) {
+ /* DA8XX_PRUCORE_1_REGS; */
+ h_pruss = (da8xx_prusscore_regs)
+ ((u32) pruss->ioaddr + 0x7800);
+ } else
+ return -EINVAL;
+
+ while (cnt--) {
+ temp_reg = __raw_readl(&h_pruss->CONTROL);
+ if (((temp_reg & DA8XX_PRUCORE_CONTROL_RUNSTATE_MASK) >>
+ DA8XX_PRUCORE_CONTROL_RUNSTATE_SHIFT) ==
+ DA8XX_PRUCORE_CONTROL_RUNSTATE_HALT)
+ break;
+ }
+ if (cnt == 0)
+ return -EBUSY;
+
+ return 0;
+}
+EXPORT_SYMBOL(pruss_wait_for_halt);
+
+s16 pruss_writeb(struct device *dev, u32 u32offset,
+ u8 *pu8datatowrite, u16 u16bytestowrite)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u8 *pu8addresstowrite;
+ u16 u16loop;
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu8addresstowrite = (u8 *) (u32offset);
+
+ for (u16loop = 0; u16loop < u16bytestowrite; u16loop++)
+ __raw_writeb(*pu8datatowrite++, pu8addresstowrite++);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_writeb);
+
+s16 pruss_readb(struct device *dev, u32 u32offset,
+ u8 *pu8datatoread, u16 u16bytestoread)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u8 *pu8addresstoread;
+ u16 u16loop;
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu8addresstoread = (u8 *) (u32offset);
+
+ for (u16loop = 0; u16loop < u16bytestoread; u16loop++)
+ *pu8datatoread++ = __raw_readb(pu8addresstoread++);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_readb);
+
+s16 pruss_writel(struct device *dev, u32 u32offset,
+ u32 *pu32datatowrite, s16 u16wordstowrite)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u32 *pu32addresstowrite;
+ s16 u16loop;
+
+ /* TODO: Get all the driver API's fixed */
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu32addresstowrite = (u32 *)(u32offset);
+
+ for (u16loop = 0; u16loop < u16wordstowrite; u16loop++)
+ __raw_writel(*pu32datatowrite++, pu32addresstowrite++);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_writel);
+
+s16 pruss_readl(struct device *dev, u32 u32offset,
+ u32 *pu32datatoread, s16 u16wordstoread)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u32 *pu32addresstoread;
+ s16 u16loop;
+
+ /* TODO: Get all the driver API's fixed */
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu32addresstoread = (u32 *)(u32offset);
+
+ for (u16loop = 0; u16loop < u16wordstoread; u16loop++)
+ *pu32datatoread++ = __raw_readl(pu32addresstoread++);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_readl);
+
+s16 pruss_writew(struct device *dev, u32 u32offset,
+ u16 *pu16datatowrite, s16 u16wordstowrite)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u32 *pu32addresstowrite;
+ s16 u16loop;
+
+ /* TODO: Get all the driver API's fixed */
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu32addresstowrite = (u32 *)(u32offset);
+
+ for (u16loop = 0; u16loop < u16wordstowrite; u16loop++) {
+ __raw_writew(*(pu16datatowrite++), (pu32addresstowrite++));
+ }
+ return 0;
+}
+EXPORT_SYMBOL(pruss_writew);
+
+s16 pruss_readw(struct device *dev, u32 u32offset,
+ u16 *pu16datatoread, s16 u16wordstoread)
+{
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev->parent);
+ u32 *pu32addresstoread;
+ s16 u16loop;
+
+ /* TODO: Get all the driver API's fixed */
+ u32offset = (u32)pruss->ioaddr + u32offset;
+ pu32addresstoread = (u32 *)(u32offset);
+
+ for (u16loop = 0; u16loop < u16wordstoread; u16loop++)
+ *pu16datatoread++ = __raw_readw(pu32addresstoread++);
+ return 0;
+}
+EXPORT_SYMBOL(pruss_readw);
+
+static int pruss_mfd_add_devices(struct platform_device *pdev)
+{
+ struct da8xx_pruss_devices *dev_data = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ struct mfd_cell cell;
+ u32 err, count;
+
+ for (count = 0; (dev_data + count)->dev_name != NULL; count++) {
+ memset(&cell, 0, sizeof(struct mfd_cell));
+ cell.id = count;
+ cell.name = (dev_data + count)->dev_name;
+ cell.platform_data = (dev_data + count)->pdata;
+ cell.data_size = (dev_data + count)->pdata_size;
+
+ err = mfd_add_devices(dev, 0, &cell, 1, NULL, 0);
+ if (err) {
+ dev_err(dev, "cannot add mfd cells\n");
+ return err;
+ }
+ }
+ return err;
+}
+
+static int __devinit da8xx_pruss_probe(struct platform_device *pdev)
+{
+ struct da8xx_pruss *pruss_dev = NULL;
+ u32 err;
+
+ pruss_dev = kzalloc(sizeof(struct da8xx_pruss), GFP_KERNEL);
+ if (!pruss_dev)
+ return -ENOMEM;
+
+ pruss_dev->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!pruss_dev->res) {
+ dev_err(&pdev->dev,
+ "unable to get pruss memory resources!\n");
+ err = -ENODEV;
+ goto probe_exit_kfree;
+ }
+
+ if (!request_mem_region(pruss_dev->res->start, resource_size(pruss_dev->res),
+ dev_name(&pdev->dev))) {
+ dev_err(&pdev->dev, "pruss memory region already claimed!\n");
+ err = -EBUSY;
+ goto probe_exit_kfree;
+ }
+
+ pruss_dev->ioaddr = ioremap(pruss_dev->res->start,
+ resource_size(pruss_dev->res));
+ if (!pruss_dev->ioaddr) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ err = -ENOMEM;
+ goto probe_exit_free_region;
+ }
+
+ pruss_dev->clk = clk_get(NULL, "pruss");
+ if (IS_ERR(pruss_dev->clk)) {
+ dev_err(&pdev->dev, "no clock available: pruss\n");
+ err = -ENODEV;
+ pruss_dev->clk = NULL;
+ goto probe_exit_iounmap;
+ }
+
+ clk_enable(pruss_dev->clk);
+ pruss_dev->clk_freq = clk_get_rate(pruss_dev->clk);
+
+ err = pruss_mfd_add_devices(pdev);
+ if (err)
+ goto probe_exit_clock;
+
+ platform_set_drvdata(pdev, pruss_dev);
+ pruss_dev->dev = &pdev->dev;
+ return 0;
+
+probe_exit_clock:
+ clk_put(pruss_dev->clk);
+ clk_disable(pruss_dev->clk);
+probe_exit_iounmap:
+ iounmap(pruss_dev->ioaddr);
+probe_exit_free_region:
+ release_mem_region(pruss_dev->res->start, resource_size(pruss_dev->res));
+probe_exit_kfree:
+ kfree(pruss_dev);
+ return err;
+}
+
+static int __devexit da8xx_pruss_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct da8xx_pruss *pruss = dev_get_drvdata(dev);
+
+ mfd_remove_devices(dev);
+ clk_disable(pruss->clk);
+ clk_put(pruss->clk);
+ iounmap(pruss->ioaddr);
+ release_mem_region(pruss->res->start, resource_size(pruss->res));
+ kfree(pruss);
+ dev_set_drvdata(dev, NULL);
+ return 0;
+}
+
+static struct platform_driver da8xx_pruss_driver = {
+ .probe = da8xx_pruss_probe,
+ .remove = __devexit_p(da8xx_pruss_remove),
+ .driver = {
+ .name = "da8xx_pruss",
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init da8xx_pruss_init(void)
+{
+ return platform_driver_register(&da8xx_pruss_driver);
+}
+module_init(da8xx_pruss_init);
+
+static void __exit da8xx_pruss_exit(void)
+{
+ platform_driver_unregister(&da8xx_pruss_driver);
+}
+module_exit(da8xx_pruss_exit);
+
+MODULE_DESCRIPTION("Programmable Realtime Unit (PRU) Driver");
+MODULE_AUTHOR("Subhasish Ghosh");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/pruss/da8xx_pru.h b/include/linux/mfd/pruss/da8xx_pru.h
new file mode 100644
index 0000000..68d8421
--- /dev/null
+++ b/include/linux/mfd/pruss/da8xx_pru.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ * Author: Jitendra Kumar <jitendra at mistralsolutions.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _PRUSS_H_
+#define _PRUSS_H_
+
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include "da8xx_prucore.h"
+
+#define PRUSS_NUM0 DA8XX_PRUCORE_0
+#define PRUSS_NUM1 DA8XX_PRUCORE_1
+
+#define PRUSS_PRU0_BASE_ADDRESS 0
+#define PRUSS_INTC_BASE_ADDRESS (PRUSS_PRU0_BASE_ADDRESS + 0x4000)
+#define PRUSS_INTC_GLBLEN (PRUSS_INTC_BASE_ADDRESS + 0x10)
+#define PRUSS_INTC_GLBLNSTLVL (PRUSS_INTC_BASE_ADDRESS + 0x1C)
+#define PRUSS_INTC_STATIDXSET (PRUSS_INTC_BASE_ADDRESS + 0x20)
+#define PRUSS_INTC_STATIDXCLR (PRUSS_INTC_BASE_ADDRESS + 0x24)
+#define PRUSS_INTC_ENIDXSET (PRUSS_INTC_BASE_ADDRESS + 0x28)
+#define PRUSS_INTC_ENIDXCLR (PRUSS_INTC_BASE_ADDRESS + 0x2C)
+#define PRUSS_INTC_HSTINTENIDXSET (PRUSS_INTC_BASE_ADDRESS + 0x34)
+#define PRUSS_INTC_HSTINTENIDXCLR (PRUSS_INTC_BASE_ADDRESS + 0x38)
+#define PRUSS_INTC_GLBLPRIIDX (PRUSS_INTC_BASE_ADDRESS + 0x80)
+#define PRUSS_INTC_STATSETINT0 (PRUSS_INTC_BASE_ADDRESS + 0x200)
+#define PRUSS_INTC_STATSETINT1 (PRUSS_INTC_BASE_ADDRESS + 0x204)
+#define PRUSS_INTC_STATCLRINT0 (PRUSS_INTC_BASE_ADDRESS + 0x280)
+#define PRUSS_INTC_STATCLRINT1 (PRUSS_INTC_BASE_ADDRESS + 0x284)
+#define PRUSS_INTC_ENABLESET0 (PRUSS_INTC_BASE_ADDRESS + 0x300)
+#define PRUSS_INTC_ENABLESET1 (PRUSS_INTC_BASE_ADDRESS + 0x304)
+#define PRUSS_INTC_ENABLECLR0 (PRUSS_INTC_BASE_ADDRESS + 0x380)
+#define PRUSS_INTC_ENABLECLR1 (PRUSS_INTC_BASE_ADDRESS + 0x384)
+#define PRUSS_INTC_CHANMAP0 (PRUSS_INTC_BASE_ADDRESS + 0x400)
+#define PRUSS_INTC_CHANMAP1 (PRUSS_INTC_BASE_ADDRESS + 0x404)
+#define PRUSS_INTC_CHANMAP2 (PRUSS_INTC_BASE_ADDRESS + 0x408)
+#define PRUSS_INTC_CHANMAP3 (PRUSS_INTC_BASE_ADDRESS + 0x40C)
+#define PRUSS_INTC_CHANMAP4 (PRUSS_INTC_BASE_ADDRESS + 0x410)
+#define PRUSS_INTC_CHANMAP5 (PRUSS_INTC_BASE_ADDRESS + 0x414)
+#define PRUSS_INTC_CHANMAP6 (PRUSS_INTC_BASE_ADDRESS + 0x418)
+#define PRUSS_INTC_CHANMAP7 (PRUSS_INTC_BASE_ADDRESS + 0x41C)
+#define PRUSS_INTC_CHANMAP8 (PRUSS_INTC_BASE_ADDRESS + 0x420)
+#define PRUSS_INTC_CHANMAP9 (PRUSS_INTC_BASE_ADDRESS + 0x424)
+#define PRUSS_INTC_CHANMAP10 (PRUSS_INTC_BASE_ADDRESS + 0x428)
+#define PRUSS_INTC_CHANMAP11 (PRUSS_INTC_BASE_ADDRESS + 0x42C)
+#define PRUSS_INTC_CHANMAP12 (PRUSS_INTC_BASE_ADDRESS + 0x430)
+#define PRUSS_INTC_CHANMAP13 (PRUSS_INTC_BASE_ADDRESS + 0x434)
+#define PRUSS_INTC_CHANMAP14 (PRUSS_INTC_BASE_ADDRESS + 0x438)
+#define PRUSS_INTC_CHANMAP15 (PRUSS_INTC_BASE_ADDRESS + 0x43C)
+#define PRUSS_INTC_HOSTMAP0 (PRUSS_INTC_BASE_ADDRESS + 0x800)
+#define PRUSS_INTC_HOSTMAP1 (PRUSS_INTC_BASE_ADDRESS + 0x804)
+#define PRUSS_INTC_HOSTMAP2 (PRUSS_INTC_BASE_ADDRESS + 0x808)
+#define PRUSS_INTC_POLARITY0 (PRUSS_INTC_BASE_ADDRESS + 0xD00)
+#define PRUSS_INTC_POLARITY1 (PRUSS_INTC_BASE_ADDRESS + 0xD04)
+#define PRUSS_INTC_TYPE0 (PRUSS_INTC_BASE_ADDRESS + 0xD80)
+#define PRUSS_INTC_TYPE1 (PRUSS_INTC_BASE_ADDRESS + 0xD84)
+#define PRUSS_INTC_HOSTINTEN (PRUSS_INTC_BASE_ADDRESS + 0x1500)
+#define PRUSS_INTC_HOSTINTLVL_MAX 9
+
+#define PRU_INTC_CHAN_123_HOST (0x03020100)
+#define PRU_INTC_CHAN_4567_HOST (0x07060504)
+#define PRU_INTC_CHAN_89_HOST (0x00000908)
+
+#define PRU_INTC_CHAN_0_SYSEVT_31 (0x00000000)
+#define PRU_INTC_CHAN_12_SYSEVT (0x02020100)
+#define PRU_INTC_CHAN_34_SYSEVT_36_39 (0x04040303)
+#define PRU_INTC_CHAN_56_SYSEVT_40_43 (0x06060505)
+#define PRU_INTC_CHAN_78_SYSEVT_44_47 (0x08080707)
+#define PRU_INTC_CHAN_9_SYSEVT_48_49 (0x00010909)
+#define PRU_INTC_CHAN_0123_SYSEVT_32_35 (0x03020100)
+#define PRU_INTC_CHAN_4567_SYSEVT_36_39 (0x07060504)
+#define PRU_INTC_CHAN_8923_SYSEVT_40_43 (0x03020908)
+#define PRU_INTC_CHAN_4567_SYSEVT_44_47 (0x07060504)
+
+struct da8xx_pruss_devices {
+ const char *dev_name;
+ void *pdata;
+ size_t pdata_size;
+ int (*setup)(void);
+};
+
+u32 pruss_get_clk_freq(struct device *dev);
+
+u32 pruss_enable(struct device *dev, u8 pruss_num);
+
+u32 pruss_load(struct device *dev, u8 pruss_num, u32 *pruss_code,
+ u32 code_size_in_words);
+
+u32 pruss_run(struct device *dev, u8 pruss_num);
+
+u32 pruss_wait_for_halt(struct device *dev, u8 pruss_num, u32 timeout);
+
+u32 pruss_disable(struct device *dev, u8 pruss_num);
+
+s16 pruss_writeb(struct device *dev, u32 u32offset,
+ u8 *pu8datatowrite, u16 u16wordstowrite);
+
+s16 pruss_readb(struct device *dev, u32 u32offset,
+ u8 *pu8datatoread, u16 u16wordstoread);
+
+s16 pruss_readl(struct device *dev, u32 u32offset,
+ u32 *pu32datatoread, s16 s16wordstoread);
+
+s16 pruss_writel(struct device *dev, u32 u32offset,
+ u32 *pu32datatoread, s16 s16wordstoread);
+
+s16 pruss_writew(struct device *dev, u32 u32offset,
+ u16 *u16datatowrite, s16 u16wordstowrite);
+
+s16 pruss_readw(struct device *dev, u32 u32offset,
+ u16 *pu32datatoread, s16 u16wordstoread);
+#endif /* End _PRUSS_H_ */
diff --git a/include/linux/mfd/pruss/da8xx_prucore.h b/include/linux/mfd/pruss/da8xx_prucore.h
new file mode 100644
index 0000000..81f2ff9
--- /dev/null
+++ b/include/linux/mfd/pruss/da8xx_prucore.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ * Author: Jitendra Kumar <jitendra at mistralsolutions.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _DA8XX_PRUCORE_H_
+#define _DA8XX_PRUCORE_H_
+
+#include <linux/types.h>
+
+#define DA8XX_PRUCORE_0 (0)
+#define DA8XX_PRUCORE_1 (1)
+
+#define DA8XX_PRUCORE_CONTROL_PCRESETVAL_MASK (0xFFFF0000u)
+#define DA8XX_PRUCORE_CONTROL_PCRESETVAL_SHIFT (0x00000010u)
+#define DA8XX_PRUCORE_CONTROL_PCRESETVAL_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_RUNSTATE_MASK (0x00008000u)
+#define DA8XX_PRUCORE_CONTROL_RUNSTATE_SHIFT (0x0000000Fu)
+#define DA8XX_PRUCORE_CONTROL_RUNSTATE_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_RUNSTATE_HALT (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_RUNSTATE_RUN (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_SINGLESTEP_MASK (0x00000100u)
+#define DA8XX_PRUCORE_CONTROL_SINGLESTEP_SHIFT (0x00000008u)
+#define DA8XX_PRUCORE_CONTROL_SINGLESTEP_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SINGLESTEP_FREERUN (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SINGLESTEP_SINGLE (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_COUNTENABLE_MASK (0x00000008u)
+#define DA8XX_PRUCORE_CONTROL_COUNTENABLE_SHIFT (0x00000003u)
+#define DA8XX_PRUCORE_CONTROL_COUNTENABLE_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_COUNTENABLE_DISABLE (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_COUNTENABLE_ENABLE (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_SLEEPING_MASK (0x00000004u)
+#define DA8XX_PRUCORE_CONTROL_SLEEPING_SHIFT (0x00000002u)
+#define DA8XX_PRUCORE_CONTROL_SLEEPING_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SLEEPING_NOTASLEEP (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SLEEPING_ASLEEP (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_ENABLE_MASK (0x00000002u)
+#define DA8XX_PRUCORE_CONTROL_ENABLE_SHIFT (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_ENABLE_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_ENABLE_DISABLE (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_ENABLE_ENABLE (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_SOFTRESET_MASK (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_SOFTRESET_SHIFT (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SOFTRESET_RESETVAL (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SOFTRESET_RESET (0x00000000u)
+#define DA8XX_PRUCORE_CONTROL_SOFTRESET_OUT_OF_RESET (0x00000001u)
+#define DA8XX_PRUCORE_CONTROL_RESETVAL (0x00000000u)
+
+typedef struct {
+ u32 CONTROL;
+ u32 STATUS;
+ u32 WAKEUP;
+ u32 CYCLECNT;
+ u32 STALLCNT;
+ u8 RSVD0[12];
+ u32 CONTABBLKIDX0;
+ u32 CONTABBLKIDX1;
+ u32 CONTABPROPTR0;
+ u32 CONTABPROPTR1;
+ u8 RSVD1[976];
+ u32 INTGPR[32];
+ u32 INTCTER[32];
+} *da8xx_prusscore_regs;
+
+#endif
--
1.7.2.3
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