diff options
27 files changed, 3528 insertions, 9 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index db3d008732c..50274fcacde 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -119,6 +119,32 @@ config MIPS_MIRAGE select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_LITTLE_ENDIAN +config BASLER_EXCITE + bool "Basler eXcite smart camera support" + select DMA_COHERENT + select HW_HAS_PCI + select IRQ_CPU + select IRQ_CPU_RM7K + select IRQ_CPU_RM9K + select SERIAL_RM9000 + select SYS_HAS_CPU_RM9000 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_64BIT_KERNEL + select SYS_SUPPORTS_BIG_ENDIAN + help + The eXcite is a smart camera platform manufactured by + Basler Vision Technologies AG + +config BASLER_EXCITE_PROTOTYPE + bool "Support for pre-release units" + depends on BASLER_EXCITE + default n + help + Pre-series (prototype) units are different from later ones in + some ways. Select this option if you have one of these. Please + note that a kernel built with this option selected will not be + able to run on normal units. + config MIPS_COBALT bool "Cobalt Server" select DMA_NONCOHERENT diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 207197b91a5..d5930148495 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -388,6 +388,13 @@ cflags-$(CONFIG_MOMENCO_OCELOT_3) += -Iinclude/asm-mips/mach-ocelot3 load-$(CONFIG_MOMENCO_OCELOT_3) += 0xffffffff80100000 # +# Basler eXcite +# +core-$(CONFIG_BASLER_EXCITE) += arch/mips/basler/excite/ +cflags-$(CONFIG_BASLER_EXCITE) += -Iinclude/asm-mips/mach-excite +load-$(CONFIG_BASLER_EXCITE) += 0x80100000 + +# # Momentum Jaguar ATX # core-$(CONFIG_MOMENCO_JAGUAR_ATX) += arch/mips/momentum/jaguar_atx/ diff --git a/arch/mips/basler/excite/Makefile b/arch/mips/basler/excite/Makefile new file mode 100644 index 00000000000..519142c2e4e --- /dev/null +++ b/arch/mips/basler/excite/Makefile @@ -0,0 +1,9 @@ +# +# Makefile for Basler eXcite +# + +obj-$(CONFIG_BASLER_EXCITE) += excite_irq.o excite_prom.o excite_setup.o \ + excite_device.o excite_procfs.o + +obj-$(CONFIG_KGDB) += excite_dbg_io.o +obj-m += excite_iodev.o diff --git a/arch/mips/basler/excite/excite_dbg_io.c b/arch/mips/basler/excite/excite_dbg_io.c new file mode 100644 index 00000000000..83f6bddf578 --- /dev/null +++ b/arch/mips/basler/excite/excite_dbg_io.c @@ -0,0 +1,122 @@ +/* + * 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/linkage.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <asm/gdb-stub.h> +#include <asm/rm9k-ocd.h> +#include <excite.h> + +#if defined(CONFIG_SERIAL_8250) && CONFIG_SERIAL_8250_NR_UARTS > 1 +#error Debug port used by serial driver +#endif + +#define UART_CLK 25000000 +#define BASE_BAUD (UART_CLK / 16) +#define REGISTER_BASE_0 0x0208UL +#define REGISTER_BASE_1 0x0238UL + +#define REGISTER_BASE_DBG REGISTER_BASE_1 + +#define CPRR 0x0004 +#define UACFG 0x0200 +#define UAINTS 0x0204 +#define UARBR (REGISTER_BASE_DBG + 0x0000) +#define UATHR (REGISTER_BASE_DBG + 0x0004) +#define UADLL (REGISTER_BASE_DBG + 0x0008) +#define UAIER (REGISTER_BASE_DBG + 0x000c) +#define UADLH (REGISTER_BASE_DBG + 0x0010) +#define UAIIR (REGISTER_BASE_DBG + 0x0014) +#define UAFCR (REGISTER_BASE_DBG + 0x0018) +#define UALCR (REGISTER_BASE_DBG + 0x001c) +#define UAMCR (REGISTER_BASE_DBG + 0x0020) +#define UALSR (REGISTER_BASE_DBG + 0x0024) +#define UAMSR (REGISTER_BASE_DBG + 0x0028) +#define UASCR (REGISTER_BASE_DBG + 0x002c) + +#define PARITY_NONE 0 +#define PARITY_ODD 0x08 +#define PARITY_EVEN 0x18 +#define PARITY_MARK 0x28 +#define PARITY_SPACE 0x38 + +#define DATA_5BIT 0x0 +#define DATA_6BIT 0x1 +#define DATA_7BIT 0x2 +#define DATA_8BIT 0x3 + +#define STOP_1BIT 0x0 +#define STOP_2BIT 0x4 + +#define BAUD_DBG 57600 +#define PARITY_DBG PARITY_NONE +#define DATA_DBG DATA_8BIT +#define STOP_DBG STOP_1BIT + +/* Initialize the serial port for KGDB debugging */ +void __init excite_kgdb_init(void) +{ + const u32 divisor = BASE_BAUD / BAUD_DBG; + + /* Take the UART out of reset */ + titan_writel(0x00ff1cff, CPRR); + titan_writel(0x00000000, UACFG); + titan_writel(0x00000002, UACFG); + + titan_writel(0x0, UALCR); + titan_writel(0x0, UAIER); + + /* Disable FIFOs */ + titan_writel(0x00, UAFCR); + + titan_writel(0x80, UALCR); + titan_writel(divisor & 0xff, UADLL); + titan_writel((divisor & 0xff00) >> 8, UADLH); + titan_writel(0x0, UALCR); + + titan_writel(DATA_DBG | PARITY_DBG | STOP_DBG, UALCR); + + /* Enable receiver interrupt */ + titan_readl(UARBR); + titan_writel(0x1, UAIER); +} + +int getDebugChar(void) +{ + while (!(titan_readl(UALSR) & 0x1)); + return titan_readl(UARBR); +} + +int putDebugChar(int data) +{ + while (!(titan_readl(UALSR) & 0x20)); + titan_writel(data, UATHR); + return 1; +} + +/* KGDB interrupt handler */ +asmlinkage void excite_kgdb_inthdl(struct pt_regs *regs) +{ + if (unlikely( + ((titan_readl(UAIIR) & 0x7) == 4) + && ((titan_readl(UARBR) & 0xff) == 0x3))) + set_async_breakpoint(®s->cp0_epc); +} diff --git a/arch/mips/basler/excite/excite_device.c b/arch/mips/basler/excite/excite_device.c new file mode 100644 index 00000000000..34ec76716fa --- /dev/null +++ b/arch/mips/basler/excite/excite_device.c @@ -0,0 +1,404 @@ +/* + * 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); + diff --git a/arch/mips/basler/excite/excite_flashtest.c b/arch/mips/basler/excite/excite_flashtest.c new file mode 100644 index 00000000000..f0024a8e329 --- /dev/null +++ b/arch/mips/basler/excite/excite_flashtest.c @@ -0,0 +1,294 @@ +/* +* Copyright (C) 2005 by Basler Vision Technologies AG +* Author: Thies Moeller <thies.moeller@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/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/kernel.h> + +#include <excite.h> + +#include <asm/io.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/nand_ecc.h> +#include <linux/mtd/partitions.h> +#include <asm/rm9k-ocd.h> // for ocd_write +#include <linux/workqueue.h> // for queue + +#include "excite_nandflash.h" +#include "nandflash.h" + +#define PFX "excite flashtest: " +typedef void __iomem *io_reg_t; + +#define io_readb(__a__) __raw_readb((__a__)) +#define io_writeb(__v__, __a__) __raw_writeb((__v__), (__a__)) + + + +static inline const struct resource *excite_nandflash_get_resource( + struct platform_device *d, unsigned long flags, const char *basename) +{ + const char fmt[] = "%s_%u"; + char buf[80]; + + if (unlikely(snprintf(buf, sizeof buf, fmt, basename, d->id) >= sizeof buf)) + return NULL; + + return platform_get_resource_byname(d, flags, buf); +} + +static inline io_reg_t +excite_nandflash_map_regs(struct platform_device *d, const char *basename) +{ + void *result = NULL; + const struct resource *const r = + excite_nandflash_get_resource(d, IORESOURCE_MEM, basename); + if (r) + result = ioremap_nocache(r->start, r->end + 1 - r->start); + return result; +} + +/* controller and mtd information */ + +struct excite_nandflash_drvdata { + struct mtd_info board_mtd; + struct nand_chip board_chip; + io_reg_t regs; +}; + + +/* command and control functions */ +static void excite_nandflash_hwcontrol(struct mtd_info *mtd, int cmd) +{ + struct nand_chip *this = mtd->priv; + io_reg_t regs = container_of(mtd,struct excite_nandflash_drvdata,board_mtd)->regs; + + switch (cmd) { + /* Select the command latch */ + case NAND_CTL_SETCLE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_CMD; + break; + /* Deselect the command latch */ + case NAND_CTL_CLRCLE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_DATA; + break; + /* Select the address latch */ + case NAND_CTL_SETALE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_ADDR; + break; + /* Deselect the address latch */ + case NAND_CTL_CLRALE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_DATA; + break; + /* Select the chip -- not used */ + case NAND_CTL_SETNCE: + break; + /* Deselect the chip -- not used */ + case NAND_CTL_CLRNCE: + break; + } + + this->IO_ADDR_R = this->IO_ADDR_W; +} + +/* excite_nandflash_devready() + * + * returns 0 if the nand is busy, 1 if it is ready + */ +static int excite_nandflash_devready(struct mtd_info *mtd) +{ + struct excite_nandflash_drvdata *drvdata = + container_of(mtd, struct excite_nandflash_drvdata, board_mtd); + + return io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS); +} + +/* device management functions */ + +/* excite_nandflash_remove + * + * called by device layer to remove the driver + * the binding to the mtd and all allocated + * resources are released + */ +static int excite_nandflash_remove(struct device *dev) +{ + struct excite_nandflash_drvdata *this = dev_get_drvdata(dev); + + pr_info(PFX "remove"); + + dev_set_drvdata(dev, NULL); + + if (this == NULL) { + pr_debug(PFX "call remove without private data!!"); + return 0; + } + + + /* free the common resources */ + if (this->regs != NULL) { + iounmap(this->regs); + this->regs = NULL; + } + + kfree(this); + + return 0; +} + +static int elapsed; + +void my_workqueue_handler(void *arg) +{ + elapsed = 1; +} + +DECLARE_WORK(sigElapsed, my_workqueue_handler, 0); + + +/* excite_nandflash_probe + * + * called by device layer when it finds a device matching + * one our driver can handled. This code checks to see if + * it can allocate all necessary resources then calls the + * nand layer to look for devices +*/ +static int excite_nandflash_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + struct excite_nandflash_drvdata *drvdata; /* private driver data */ + struct nand_chip *board_chip; /* private flash chip data */ + struct mtd_info *board_mtd; /* mtd info for this board */ + + int err = 0; + int count = 0; + struct timeval tv,endtv; + unsigned int dt; + + pr_info(PFX "probe dev: (%p)\n", dev); + + pr_info(PFX "adjust LB timing\n"); + ocd_writel(0x00000330, LDP2); + + drvdata = kmalloc(sizeof(*drvdata), GFP_KERNEL); + if (unlikely(!drvdata)) { + printk(KERN_ERR PFX "no memory for drvdata\n"); + err = -ENOMEM; + goto mem_error; + } + + /* Initialize structures */ + memset(drvdata, 0, sizeof(*drvdata)); + + /* bind private data into driver */ + dev_set_drvdata(dev, drvdata); + + /* allocate and map the resource */ + drvdata->regs = + excite_nandflash_map_regs(pdev, EXCITE_NANDFLASH_RESOURCE_REGS); + + if (unlikely(!drvdata->regs)) { + printk(KERN_ERR PFX "cannot reserve register region\n"); + err = -ENXIO; + goto io_error; + } + + /* initialise our chip */ + board_chip = &drvdata->board_chip; + + board_chip->IO_ADDR_R = drvdata->regs + EXCITE_NANDFLASH_DATA; + board_chip->IO_ADDR_W = drvdata->regs + EXCITE_NANDFLASH_DATA; + + board_chip->hwcontrol = excite_nandflash_hwcontrol; + board_chip->dev_ready = excite_nandflash_devready; + + board_chip->chip_delay = 25; + #if 0 + /* TODO: speedup the initial scan */ + board_chip->options = NAND_USE_FLASH_BBT; + #endif + board_chip->eccmode = NAND_ECC_SOFT; + + /* link chip to mtd */ + board_mtd = &drvdata->board_mtd; + board_mtd->priv = board_chip; + + + pr_info(PFX "FlashTest\n"); + elapsed = 0; +/* schedule_delayed_work(&sigElapsed, 1*HZ); + while (!elapsed) { + io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS); + count++; + } + pr_info(PFX "reads in 1 sec --> %d\n",count); +*/ + do_gettimeofday(&tv); + for (count = 0 ; count < 1000000; count ++) { + io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS); + } + do_gettimeofday(&endtv); + dt = (endtv.tv_sec - tv.tv_sec) * 1000000 + endtv.tv_usec - tv.tv_usec; + pr_info(PFX "%8d us timeval\n",dt); + pr_info(PFX "EndFlashTest\n"); + +/* return with error to unload everything +*/ +io_error: + iounmap(drvdata->regs); + +mem_error: + kfree(drvdata); + + if (err == 0) + err = -EINVAL; + return err; +} + +static struct device_driver excite_nandflash_driver = { + .name = "excite_nand", + .bus = &platform_bus_type, + .probe = excite_nandflash_probe, + .remove = excite_nandflash_remove, +}; + +static int __init excite_nandflash_init(void) +{ + pr_info(PFX "register Driver (Rev: $Revision:$)\n"); + return driver_register(&excite_nandflash_driver); +} + +static void __exit excite_nandflash_exit(void) +{ + driver_unregister(&excite_nandflash_driver); + pr_info(PFX "Driver unregistered"); +} + +module_init(excite_nandflash_init); +module_exit(excite_nandflash_exit); + +MODULE_AUTHOR("Thies Moeller <thies.moeller@baslerweb.com>"); +MODULE_DESCRIPTION("Basler eXcite NAND-Flash driver"); +MODULE_LICENSE("GPL"); diff --git a/arch/mips/basler/excite/excite_fpga.h b/arch/mips/basler/excite/excite_fpga.h new file mode 100644 index 00000000000..38fcda703a0 --- /dev/null +++ b/arch/mips/basler/excite/excite_fpga.h @@ -0,0 +1,80 @@ +#ifndef EXCITE_FPGA_H_INCLUDED +#define EXCITE_FPGA_H_INCLUDED + + +/** + * Adress alignment of the individual FPGA bytes. + * The address arrangement of the individual bytes of the FPGA is two + * byte aligned at the embedded MK2 platform. + */ +#ifdef EXCITE_CCI_FPGA_MK2 +typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2))); +#else +typedef unsigned char excite_cci_fpga_align_t; +#endif + + +/** + * Size of Dual Ported RAM. + */ +#define EXCITE_DPR_SIZE 263 + + +/** + * Size of Reserved Status Fields in Dual Ported RAM. + */ +#define EXCITE_DPR_STATUS_SIZE 7 + + + +/** + * FPGA. + * Hardware register layout of the FPGA interface. The FPGA must accessed + * byte wise solely. + * @see EXCITE_CCI_DPR_MK2 + */ +typedef struct excite_fpga { + + /** + * Dual Ported RAM. + */ + excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE]; + + /** + * Status. + */ + excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE]; + +#ifdef EXCITE_CCI_FPGA_MK2 + /** + * RM9000 Interrupt. + * Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite. + */ + excite_cci_fpga_align_t rm9k_int; +#else + /** + * MK2 Interrupt. + * Write access initiates interrupt at the ARM processor of the MK2. + */ + excite_cci_fpga_align_t mk2_int; + + excite_cci_fpga_align_t gap[0x1000-0x10f]; + + /** |