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-rw-r--r--arch/mips/basler/excite/excite_device.c404
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diff --git a/arch/mips/basler/excite/excite_device.c b/arch/mips/basler/excite/excite_device.c
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+++ b/arch/mips/basler/excite/excite_device.c
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+/*
+ * Copyright (C) 2004 by Basler Vision Technologies AG
+ * Author: Thomas Koeller <thomas.koeller@baslerweb.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ioport.h>
+#include <linux/err.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <asm/types.h>
+#include <asm/rm9k-ocd.h>
+
+#include <excite.h>
+#include <rm9k_eth.h>
+#include <rm9k_wdt.h>
+#include <rm9k_xicap.h>
+#include <excite_nandflash.h>
+
+#include "excite_iodev.h"
+
+#define RM9K_GE_UNIT 0
+#define XICAP_UNIT 0
+#define NAND_UNIT 0
+
+#define DLL_TIMEOUT 3 /* seconds */
+
+
+#define RINIT(__start__, __end__, __name__, __parent__) { \
+ .name = __name__ "_0", \
+ .start = (__start__), \
+ .end = (__end__), \
+ .flags = 0, \
+ .parent = (__parent__) \
+}
+
+#define RINIT_IRQ(__irq__, __name__) { \
+ .name = __name__ "_0", \
+ .start = (__irq__), \
+ .end = (__irq__), \
+ .flags = IORESOURCE_IRQ, \
+ .parent = NULL \
+}
+
+
+
+enum {
+ slice_xicap,
+ slice_eth
+};
+
+
+
+static struct resource
+ excite_ctr_resource = {
+ .name = "GPI counters",
+ .start = 0,
+ .end = 5,
+ .flags = 0,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_gpislice_resource = {
+ .name = "GPI slices",
+ .start = 0,
+ .end = 1,
+ .flags = 0,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_mdio_channel_resource = {
+ .name = "MDIO channels",
+ .start = 0,
+ .end = 1,
+ .flags = 0,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_fifomem_resource = {
+ .name = "FIFO memory",
+ .start = 0,
+ .end = 767,
+ .flags = 0,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_scram_resource = {
+ .name = "Scratch RAM",
+ .start = EXCITE_PHYS_SCRAM,
+ .end = EXCITE_PHYS_SCRAM + EXCITE_SIZE_SCRAM - 1,
+ .flags = IORESOURCE_MEM,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_fpga_resource = {
+ .name = "System FPGA",
+ .start = EXCITE_PHYS_FPGA,
+ .end = EXCITE_PHYS_FPGA + EXCITE_SIZE_FPGA - 1,
+ .flags = IORESOURCE_MEM,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_nand_resource = {
+ .name = "NAND flash control",
+ .start = EXCITE_PHYS_NAND,
+ .end = EXCITE_PHYS_NAND + EXCITE_SIZE_NAND - 1,
+ .flags = IORESOURCE_MEM,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ },
+ excite_titan_resource = {
+ .name = "TITAN registers",
+ .start = EXCITE_PHYS_TITAN,
+ .end = EXCITE_PHYS_TITAN + EXCITE_SIZE_TITAN - 1,
+ .flags = IORESOURCE_MEM,
+ .parent = NULL,
+ .sibling = NULL,
+ .child = NULL
+ };
+
+
+
+static void adjust_resources(struct resource *res, unsigned int n)
+{
+ struct resource *p;
+ const unsigned long mask = IORESOURCE_IO | IORESOURCE_MEM
+ | IORESOURCE_IRQ | IORESOURCE_DMA;
+
+ for (p = res; p < res + n; p++) {
+ const struct resource * const parent = p->parent;
+ if (parent) {
+ p->start += parent->start;
+ p->end += parent->start;
+ p->flags = parent->flags & mask;
+ }
+ }
+}
+
+
+
+#if defined(CONFIG_EXCITE_FCAP_GPI) || defined(CONFIG_EXCITE_FCAP_GPI_MODULE)
+static struct resource xicap_rsrc[] = {
+ RINIT(0x4840, 0x486f, XICAP_RESOURCE_FIFO_RX, &excite_titan_resource),
+ RINIT(0x4940, 0x494b, XICAP_RESOURCE_FIFO_TX, &excite_titan_resource),
+ RINIT(0x5040, 0x5127, XICAP_RESOURCE_XDMA, &excite_titan_resource),
+ RINIT(0x1000, 0x112f, XICAP_RESOURCE_PKTPROC, &excite_titan_resource),
+ RINIT(0x1100, 0x110f, XICAP_RESOURCE_PKT_STREAM, &excite_fpga_resource),
+ RINIT(0x0800, 0x0bff, XICAP_RESOURCE_DMADESC, &excite_scram_resource),
+ RINIT(slice_xicap, slice_xicap, XICAP_RESOURCE_GPI_SLICE, &excite_gpislice_resource),
+ RINIT(0x0100, 0x02ff, XICAP_RESOURCE_FIFO_BLK, &excite_fifomem_resource),
+ RINIT_IRQ(TITAN_IRQ, XICAP_RESOURCE_IRQ)
+};
+
+static struct platform_device xicap_pdev = {
+ .name = XICAP_NAME,
+ .id = XICAP_UNIT,
+ .num_resources = ARRAY_SIZE(xicap_rsrc),
+ .resource = xicap_rsrc
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init xicap_devinit(void)
+{
+ unsigned long tend;
+ u32 reg;
+ int retval;
+
+ adjust_resources(xicap_rsrc, ARRAY_SIZE(xicap_rsrc));
+
+ /* Power up the slice and configure it. */
+ reg = titan_readl(CPTC1R);
+ reg &= ~(0x11100 << slice_xicap);
+ titan_writel(reg, CPTC1R);
+
+ /* Enable slice & DLL. */
+ reg= titan_readl(CPRR);
+ reg &= ~(0x00030003 << (slice_xicap * 2));
+ titan_writel(reg, CPRR);
+
+ /* Wait for DLLs to lock */
+ tend = jiffies + DLL_TIMEOUT * HZ;
+ while (time_before(jiffies, tend)) {
+ if (!(~titan_readl(CPDSR) & (0x1 << (slice_xicap * 4))))
+ break;
+ yield();
+ }
+
+ if (~titan_readl(CPDSR) & (0x1 << (slice_xicap * 4))) {
+ printk(KERN_ERR "%s: DLL not locked after %u seconds\n",
+ xicap_pdev.name, DLL_TIMEOUT);
+ retval = -ETIME;
+ } else {
+ /* Register platform device */
+ retval = platform_device_register(&xicap_pdev);
+ }
+
+ return retval;
+}
+
+device_initcall(xicap_devinit);
+#endif /* defined(CONFIG_EXCITE_FCAP_GPI) || defined(CONFIG_EXCITE_FCAP_GPI_MODULE) */
+
+
+
+#if defined(CONFIG_WDT_RM9K_GPI) || defined(CONFIG_WDT_RM9K_GPI_MODULE)
+static struct resource wdt_rsrc[] = {
+ RINIT(0, 0, WDT_RESOURCE_COUNTER, &excite_ctr_resource),
+ RINIT(0x0084, 0x008f, WDT_RESOURCE_REGS, &excite_titan_resource),
+ RINIT_IRQ(TITAN_IRQ, WDT_RESOURCE_IRQ)
+};
+
+static struct platform_device wdt_pdev = {
+ .name = WDT_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(wdt_rsrc),
+ .resource = wdt_rsrc
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init wdt_devinit(void)
+{
+ adjust_resources(wdt_rsrc, ARRAY_SIZE(wdt_rsrc));
+ return platform_device_register(&wdt_pdev);
+}
+
+device_initcall(wdt_devinit);
+#endif /* defined(CONFIG_WDT_RM9K_GPI) || defined(CONFIG_WDT_RM9K_GPI_MODULE) */
+
+
+
+static struct resource excite_nandflash_rsrc[] = {
+ RINIT(0x2000, 0x201f, EXCITE_NANDFLASH_RESOURCE_REGS, &excite_nand_resource)
+};
+
+static struct platform_device excite_nandflash_pdev = {
+ .name = "excite_nand",
+ .id = NAND_UNIT,
+ .num_resources = ARRAY_SIZE(excite_nandflash_rsrc),
+ .resource = excite_nandflash_rsrc
+};
+
+/*
+ * Create a platform device for the access to the nand-flash
+ * port
+ */
+static int __init excite_nandflash_devinit(void)
+{
+ adjust_resources(excite_nandflash_rsrc, ARRAY_SIZE(excite_nandflash_rsrc));
+
+ /* nothing to be done here */
+
+ /* Register platform device */
+ return platform_device_register(&excite_nandflash_pdev);
+}
+
+device_initcall(excite_nandflash_devinit);
+
+
+
+static struct resource iodev_rsrc[] = {
+ RINIT_IRQ(FPGA1_IRQ, IODEV_RESOURCE_IRQ)
+};
+
+static struct platform_device io_pdev = {
+ .name = IODEV_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(iodev_rsrc),
+ .resource = iodev_rsrc
+};
+
+/*
+ * Create a platform device for the external I/O ports.
+ */
+static int __init io_devinit(void)
+{
+ adjust_resources(iodev_rsrc, ARRAY_SIZE(iodev_rsrc));
+ return platform_device_register(&io_pdev);
+}
+
+device_initcall(io_devinit);
+
+
+
+
+#if defined(CONFIG_RM9K_GE) || defined(CONFIG_RM9K_GE_MODULE)
+static struct resource rm9k_ge_rsrc[] = {
+ RINIT(0x2200, 0x27ff, RM9K_GE_RESOURCE_MAC, &excite_titan_resource),
+ RINIT(0x1800, 0x1fff, RM9K_GE_RESOURCE_MSTAT, &excite_titan_resource),
+ RINIT(0x2000, 0x212f, RM9K_GE_RESOURCE_PKTPROC, &excite_titan_resource),
+ RINIT(0x5140, 0x5227, RM9K_GE_RESOURCE_XDMA, &excite_titan_resource),
+ RINIT(0x4870, 0x489f, RM9K_GE_RESOURCE_FIFO_RX, &excite_titan_resource),
+ RINIT(0x494c, 0x4957, RM9K_GE_RESOURCE_FIFO_TX, &excite_titan_resource),
+ RINIT(0x0000, 0x007f, RM9K_GE_RESOURCE_FIFOMEM_RX, &excite_fifomem_resource),
+ RINIT(0x0080, 0x00ff, RM9K_GE_RESOURCE_FIFOMEM_TX, &excite_fifomem_resource),
+ RINIT(0x0180, 0x019f, RM9K_GE_RESOURCE_PHY, &excite_titan_resource),
+ RINIT(0x0000, 0x03ff, RM9K_GE_RESOURCE_DMADESC_RX, &excite_scram_resource),
+ RINIT(0x0400, 0x07ff, RM9K_GE_RESOURCE_DMADESC_TX, &excite_scram_resource),
+ RINIT(slice_eth, slice_eth, RM9K_GE_RESOURCE_GPI_SLICE, &excite_gpislice_resource),
+ RINIT(0, 0, RM9K_GE_RESOURCE_MDIO_CHANNEL, &excite_mdio_channel_resource),
+ RINIT_IRQ(TITAN_IRQ, RM9K_GE_RESOURCE_IRQ_MAIN),
+ RINIT_IRQ(PHY_IRQ, RM9K_GE_RESOURCE_IRQ_PHY)
+};
+
+static struct platform_device rm9k_ge_pdev = {
+ .name = RM9K_GE_NAME,
+ .id = RM9K_GE_UNIT,
+ .num_resources = ARRAY_SIZE(rm9k_ge_rsrc),
+ .resource = rm9k_ge_rsrc
+};
+
+
+
+/*
+ * Create a platform device for the Ethernet port.
+ */
+static int __init rm9k_ge_devinit(void)
+{
+ u32 reg;
+
+ adjust_resources(rm9k_ge_rsrc, ARRAY_SIZE(rm9k_ge_rsrc));
+
+ /* Power up the slice and configure it. */
+ reg = titan_readl(CPTC1R);
+ reg &= ~(0x11000 << slice_eth);
+ reg |= 0x100 << slice_eth;
+ titan_writel(reg, CPTC1R);
+
+ /* Take the MAC out of reset, reset the DLLs. */
+ reg = titan_readl(CPRR);
+ reg &= ~(0x00030000 << (slice_eth * 2));
+ reg |= 0x3 << (slice_eth * 2);
+ titan_writel(reg, CPRR);
+
+ return platform_device_register(&rm9k_ge_pdev);
+}
+
+device_initcall(rm9k_ge_devinit);
+#endif /* defined(CONFIG_RM9K_GE) || defined(CONFIG_RM9K_GE_MODULE) */
+
+
+
+static int __init excite_setup_devs(void)
+{
+ int res;
+ u32 reg;
+
+ /* Enable xdma and fifo interrupts */
+ reg = titan_readl(0x0050);
+ titan_writel(reg | 0x18000000, 0x0050);
+
+ res = request_resource(&iomem_resource, &excite_titan_resource);
+ if (res)
+ return res;
+ res = request_resource(&iomem_resource, &excite_scram_resource);
+ if (res)
+ return res;
+ res = request_resource(&iomem_resource, &excite_fpga_resource);
+ if (res)
+ return res;
+ res = request_resource(&iomem_resource, &excite_nand_resource);
+ if (res)
+ return res;
+ excite_fpga_resource.flags = excite_fpga_resource.parent->flags &
+ ( IORESOURCE_IO | IORESOURCE_MEM
+ | IORESOURCE_IRQ | IORESOURCE_DMA);
+ excite_nand_resource.flags = excite_nand_resource.parent->flags &
+ ( IORESOURCE_IO | IORESOURCE_MEM
+ | IORESOURCE_IRQ | IORESOURCE_DMA);
+
+ return 0;
+}
+
+arch_initcall(excite_setup_devs);
+