/* * 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/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 __maybe_unused = { .name = "GPI counters", .start = 0, .end = 5, .flags = 0, .parent = NULL, .sibling = NULL, .child = NULL }, excite_gpislice_resource __maybe_unused = { .name = "GPI slices", .start = 0, .end = 1, .flags = 0, .parent = NULL, .sibling = NULL, .child = NULL }, excite_mdio_channel_resource __maybe_unused = { .name = "MDIO channels", .start = 0, .end = 1, .flags = 0, .parent = NULL, .sibling = NULL, .child = NULL }, excite_fifomem_resource __maybe_unused = { .name = "FIFO memory", .start = 0, .end = 767, .flags = 0, .parent = NULL, .sibling = NULL, .child = NULL }, excite_scram_resource __maybe_unused = { .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 __maybe_unused = { .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 __maybe_unused = { .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 __maybe_unused = { .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);