X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fmips%2Fbasler%2Fexcite%2Fexcite_device.c;fp=arch%2Fmips%2Fbasler%2Fexcite%2Fexcite_device.c;h=bbb4ea43da88e37bf8fff9ded7397209a0996f29;hb=f05f9504c50ed069377d37f02f22e7a16b5921de;hp=0000000000000000000000000000000000000000;hpb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;p=linux-2.6.git diff --git a/arch/mips/basler/excite/excite_device.c b/arch/mips/basler/excite/excite_device.c new file mode 100644 index 000000000..bbb4ea43d --- /dev/null +++ b/arch/mips/basler/excite/excite_device.c @@ -0,0 +1,403 @@ +/* + * Copyright (C) 2004 by Basler Vision Technologies AG + * Author: Thomas Koeller + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#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); +