1f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar/* 2f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * Programmable Real-Time Unit Sub System (PRUSS) UIO driver (uio_pruss) 3f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 4f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * This driver exports PRUSS host event out interrupts and PRUSS, L3 RAM, 5f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * and DDR RAM to user space for applications interacting with PRUSS firmware 6f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 7f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * Copyright (C) 2010-11 Texas Instruments Incorporated - http://www.ti.com/ 8f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 9f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * This program is free software; you can redistribute it and/or 10f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * modify it under the terms of the GNU General Public License as 11f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * published by the Free Software Foundation version 2. 12f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 13f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * This program is distributed "as is" WITHOUT ANY WARRANTY of any 14f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * kind, whether express or implied; without even the implied warranty 15f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * GNU General Public License for more details. 17f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar */ 18f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/device.h> 19f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/module.h> 20f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/moduleparam.h> 21f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/platform_device.h> 22f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/uio_driver.h> 23f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/platform_data/uio_pruss.h> 24f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/io.h> 25f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/clk.h> 26f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/dma-mapping.h> 27f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#include <linux/slab.h> 282eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter#include <linux/genalloc.h> 29f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 30f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define DRV_NAME "pruss_uio" 31f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define DRV_VERSION "1.0" 32f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 33f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharstatic int sram_pool_sz = SZ_16K; 34f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharmodule_param(sram_pool_sz, int, 0); 35f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_PARM_DESC(sram_pool_sz, "sram pool size to allocate "); 36f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 37f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharstatic int extram_pool_sz = SZ_256K; 38f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharmodule_param(extram_pool_sz, int, 0); 39f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_PARM_DESC(extram_pool_sz, "external ram pool size to allocate"); 40f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 41f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar/* 4225985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * Host event IRQ numbers from PRUSS - PRUSS can generate up to 8 interrupt 43f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * events to AINTC of ARM host processor - which can be used for IPC b/w PRUSS 44f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * firmware and user space application, async notification from PRU firmware 45f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * to user space application 46f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 3 PRU_EVTOUT0 47f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 4 PRU_EVTOUT1 48f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 5 PRU_EVTOUT2 49f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 6 PRU_EVTOUT3 50f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 7 PRU_EVTOUT4 51f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 8 PRU_EVTOUT5 52f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 9 PRU_EVTOUT6 53f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar * 10 PRU_EVTOUT7 54f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar*/ 55f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define MAX_PRUSS_EVT 8 56f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 57f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define PINTC_HIDISR 0x0038 58f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define PINTC_HIPIR 0x0900 59f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define HIPIR_NOPEND 0x80000000 60f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar#define PINTC_HIER 0x1500 61f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 62f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharstruct uio_pruss_dev { 63f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_info *info; 64f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct clk *pruss_clk; 65f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar dma_addr_t sram_paddr; 66f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar dma_addr_t ddr_paddr; 67f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void __iomem *prussio_vaddr; 682eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter unsigned long sram_vaddr; 69f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void *ddr_vaddr; 70f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar unsigned int hostirq_start; 71f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar unsigned int pintc_base; 722eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter struct gen_pool *sram_pool; 73f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar}; 74f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 75f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharstatic irqreturn_t pruss_handler(int irq, struct uio_info *info) 76f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar{ 77f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_pruss_dev *gdev = info->priv; 78f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar int intr_bit = (irq - gdev->hostirq_start + 2); 79f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar int val, intr_mask = (1 << intr_bit); 80f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void __iomem *base = gdev->prussio_vaddr + gdev->pintc_base; 81f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void __iomem *intren_reg = base + PINTC_HIER; 82f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void __iomem *intrdis_reg = base + PINTC_HIDISR; 83f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar void __iomem *intrstat_reg = base + PINTC_HIPIR + (intr_bit << 2); 84f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 85f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar val = ioread32(intren_reg); 86f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar /* Is interrupt enabled and active ? */ 87f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!(val & intr_mask) && (ioread32(intrstat_reg) & HIPIR_NOPEND)) 88f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return IRQ_NONE; 89f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar /* Disable interrupt */ 90f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar iowrite32(intr_bit, intrdis_reg); 91f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return IRQ_HANDLED; 92f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar} 93f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 944719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heiderstatic void pruss_cleanup(struct device *dev, struct uio_pruss_dev *gdev) 95f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar{ 96f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar int cnt; 97f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_info *p = gdev->info; 98f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 99f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar for (cnt = 0; cnt < MAX_PRUSS_EVT; cnt++, p++) { 100f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar uio_unregister_device(p); 101f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(p->name); 102f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 103f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar iounmap(gdev->prussio_vaddr); 104f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (gdev->ddr_vaddr) { 1054719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dma_free_coherent(dev, extram_pool_sz, gdev->ddr_vaddr, 106f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar gdev->ddr_paddr); 107f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 108f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (gdev->sram_vaddr) 1092eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter gen_pool_free(gdev->sram_pool, 1102eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter gdev->sram_vaddr, 1112eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter sram_pool_sz); 112f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(gdev->info); 113f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar clk_put(gdev->pruss_clk); 114f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(gdev); 115f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar} 116f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 1174719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heiderstatic int pruss_probe(struct platform_device *pdev) 118f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar{ 119f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_info *p; 120f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_pruss_dev *gdev; 121f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct resource *regs_prussio; 1224719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider struct device *dev = &pdev->dev; 123f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar int ret = -ENODEV, cnt = 0, len; 1244719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider struct uio_pruss_pdata *pdata = dev_get_platdata(dev); 125f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 126f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar gdev = kzalloc(sizeof(struct uio_pruss_dev), GFP_KERNEL); 127f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!gdev) 128f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return -ENOMEM; 129f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 130f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar gdev->info = kzalloc(sizeof(*p) * MAX_PRUSS_EVT, GFP_KERNEL); 131f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!gdev->info) { 132f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(gdev); 133f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return -ENOMEM; 134f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 1354719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider 136f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar /* Power on PRU in case its not done as part of boot-loader */ 1374719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider gdev->pruss_clk = clk_get(dev, "pruss"); 138f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (IS_ERR(gdev->pruss_clk)) { 1394719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "Failed to get clock\n"); 140cb3771b049b3b554455094a3b06d8ceb07086e06Emil Goode ret = PTR_ERR(gdev->pruss_clk); 141f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(gdev->info); 142f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar kfree(gdev); 143f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return ret; 144f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } else { 145f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar clk_enable(gdev->pruss_clk); 146f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 147f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 1484719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider regs_prussio = platform_get_resource(pdev, IORESOURCE_MEM, 0); 149f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!regs_prussio) { 1504719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "No PRUSS I/O resource specified\n"); 151f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar goto out_free; 152f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 153f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 154f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!regs_prussio->start) { 1554719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "Invalid memory resource\n"); 156f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar goto out_free; 157f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 158f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 1592eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter if (pdata->sram_pool) { 1602eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter gdev->sram_pool = pdata->sram_pool; 1612eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter gdev->sram_vaddr = 162288342e9cc867421d20f940d0c06b7aa4bf39096Nicolin Chen (unsigned long)gen_pool_dma_alloc(gdev->sram_pool, 163288342e9cc867421d20f940d0c06b7aa4bf39096Nicolin Chen sram_pool_sz, &gdev->sram_paddr); 1642eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter if (!gdev->sram_vaddr) { 1654719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "Could not allocate SRAM pool\n"); 1662eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter goto out_free; 1672eb2478d471e45e1d0c8bb3defbf82bf7204e13dMatt Porter } 168f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 169f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 1704719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider gdev->ddr_vaddr = dma_alloc_coherent(dev, extram_pool_sz, 171f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar &(gdev->ddr_paddr), GFP_KERNEL | GFP_DMA); 172f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!gdev->ddr_vaddr) { 1734719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "Could not allocate external memory\n"); 174f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar goto out_free; 175f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 176f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 177f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar len = resource_size(regs_prussio); 178f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar gdev->prussio_vaddr = ioremap(regs_prussio->start, len); 179f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (!gdev->prussio_vaddr) { 1804719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider dev_err(dev, "Can't remap PRUSS I/O address range\n"); 181f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar goto out_free; 182f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 183f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 184f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar gdev->pintc_base = pdata->pintc_base; 1854719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider gdev->hostirq_start = platform_get_irq(pdev, 0); 186f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 187f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar for (cnt = 0, p = gdev->info; cnt < MAX_PRUSS_EVT; cnt++, p++) { 188f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[0].addr = regs_prussio->start; 189f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[0].size = resource_size(regs_prussio); 190f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[0].memtype = UIO_MEM_PHYS; 191f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 192f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[1].addr = gdev->sram_paddr; 193f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[1].size = sram_pool_sz; 194f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[1].memtype = UIO_MEM_PHYS; 195f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 196f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[2].addr = gdev->ddr_paddr; 197f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[2].size = extram_pool_sz; 198f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->mem[2].memtype = UIO_MEM_PHYS; 199f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 200f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->name = kasprintf(GFP_KERNEL, "pruss_evt%d", cnt); 201f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->version = DRV_VERSION; 202f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 203f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar /* Register PRUSS IRQ lines */ 204f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->irq = gdev->hostirq_start + cnt; 205f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->handler = pruss_handler; 206f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar p->priv = gdev; 207f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 2084719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider ret = uio_register_device(dev, p); 209f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar if (ret < 0) 210f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar goto out_free; 211f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar } 212f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 2134719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider platform_set_drvdata(pdev, gdev); 214f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return 0; 215f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 216f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharout_free: 217f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar pruss_cleanup(dev, gdev); 218f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return ret; 219f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar} 220f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 2219b96c3124b66a959ba061dbca339944a81686cd2Bill Pembertonstatic int pruss_remove(struct platform_device *dev) 222f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar{ 223f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar struct uio_pruss_dev *gdev = platform_get_drvdata(dev); 224f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 2254719ebfd89f0a93bb3fd7f251ecd5d0acbc8bdf1Andre Heider pruss_cleanup(&dev->dev, gdev); 226f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar return 0; 227f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar} 228f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 229f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadharstatic struct platform_driver pruss_driver = { 230f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar .probe = pruss_probe, 2315a59509b4753c281d3003eb996c8137bef62e5a9Bill Pemberton .remove = pruss_remove, 232f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar .driver = { 233f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar .name = DRV_NAME, 234f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar .owner = THIS_MODULE, 235f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar }, 236f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar}; 237f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 23811e3123d9fdbe0aab1adf9ab5a5b1b28aa91daa7Axel Linmodule_platform_driver(pruss_driver); 239f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh Gangadhar 240f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_LICENSE("GPL v2"); 241f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_VERSION(DRV_VERSION); 242f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_AUTHOR("Amit Chatterjee <amit.chatterjee@ti.com>"); 243f1a304e7941cc76353363a139cbb6a4b1ca7c737Pratheesh GangadharMODULE_AUTHOR("Pratheesh Gangadhar <pratheesh@ti.com>"); 244