142f4ed4b1
the alternate status and the control registers. Remove the local version of ata_reset. Add support for the ADI Pronghorn Metro boards. They use CS3 and CS4 instead of Avila's CS1 and CS2.
384 lines
10 KiB
C
384 lines
10 KiB
C
/* $NetBSD: ixp425.c,v 1.10 2005/12/11 12:16:51 christos Exp $ */
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/*
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* Copyright (c) 2003
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* Ichiro FUKUHARA <ichiro@ichiro.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Ichiro FUKUHARA.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define _ARM32_BUS_DMA_PRIVATE
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/rman.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <arm/xscale/ixp425/ixp425reg.h>
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#include <arm/xscale/ixp425/ixp425var.h>
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#include <arm/xscale/ixp425/ixp425_intr.h>
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#include <dev/pci/pcireg.h>
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volatile uint32_t intr_enabled;
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uint32_t intr_steer = 0;
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struct ixp425_softc *ixp425_softc = NULL;
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static int ixp425_probe(device_t);
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static void ixp425_identify(driver_t *, device_t);
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static int ixp425_attach(device_t);
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static struct {
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uint32_t hwbase;
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uint32_t size;
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uint32_t vbase;
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} hwvtrans[] = {
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{ IXP425_IO_HWBASE, IXP425_IO_SIZE, IXP425_IO_VBASE },
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{ IXP425_EXP_HWBASE, IXP425_EXP_SIZE, IXP425_EXP_VBASE },
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{ IXP425_PCI_HWBASE, IXP425_PCI_SIZE, IXP425_PCI_VBASE },
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{ IXP425_PCI_MEM_HWBASE,IXP425_PCI_MEM_SIZE, IXP425_PCI_MEM_VBASE },
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#if 0
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{ IXP425_PCI_IO_HWBASE, IXP425_PCI_IO_SIZE, IXP425_PCI_IO_VBASE },
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#endif
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{ IXP425_MCU_HWBASE, IXP425_MCU_SIZE, IXP425_MCU_VBASE },
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{ IXP425_QMGR_HWBASE, IXP425_QMGR_SIZE, IXP425_QMGR_VBASE },
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{ IXP425_NPE_A_HWBASE, IXP425_NPE_A_SIZE, IXP425_NPE_A_VBASE },
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{ IXP425_NPE_B_HWBASE, IXP425_NPE_B_SIZE, IXP425_NPE_B_VBASE },
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{ IXP425_NPE_C_HWBASE, IXP425_NPE_C_SIZE, IXP425_NPE_C_VBASE },
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{ IXP425_MAC_A_HWBASE, IXP425_MAC_A_SIZE, IXP425_MAC_A_VBASE },
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{ IXP425_MAC_B_HWBASE, IXP425_MAC_B_SIZE, IXP425_MAC_B_VBASE },
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/* Gateworks Avila IDE/CF is mapped here */
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{ IXP425_EXP_BUS_CS1_HWBASE, IXP425_EXP_BUS_SIZE,
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IXP425_EXP_BUS_CS1_VBASE },
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{ IXP425_EXP_BUS_CS2_HWBASE, IXP425_EXP_BUS_SIZE,
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IXP425_EXP_BUS_CS2_VBASE },
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/* ADI Pronghorn Metro IDE/CF is mapped here */
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{ IXP425_EXP_BUS_CS3_HWBASE, IXP425_EXP_BUS_SIZE,
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IXP425_EXP_BUS_CS3_VBASE },
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{ IXP425_EXP_BUS_CS4_HWBASE, IXP425_EXP_BUS_SIZE,
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IXP425_EXP_BUS_CS4_VBASE },
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};
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static int
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getvbase(uint32_t hwbase, uint32_t size, uint32_t *vbase)
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{
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int i;
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for (i = 0; i < sizeof hwvtrans / sizeof *hwvtrans; i++) {
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if (hwbase >= hwvtrans[i].hwbase &&
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hwbase + size <= hwvtrans[i].hwbase + hwvtrans[i].size) {
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*vbase = hwbase - hwvtrans[i].hwbase + hwvtrans[i].vbase;
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return (0);
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}
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}
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return (ENOENT);
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}
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struct arm32_dma_range *
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bus_dma_get_range(void)
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{
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return (NULL);
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}
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int
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bus_dma_get_range_nb(void)
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{
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return (0);
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}
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static __inline u_int32_t
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ixp425_irq2gpio_bit(int irq)
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{
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static const uint8_t int2gpio[32] __attribute__ ((aligned(32))) = {
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* INT#0 -> INT#5 */
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0x00, 0x01, /* GPIO#0 -> GPIO#1 */
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* INT#8 -> INT#13 */
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0xff, 0xff, 0xff, 0xff, 0xff, /* INT#14 -> INT#18 */
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0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* GPIO#2 -> GPIO#7 */
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0x08, 0x09, 0x0a, 0x0b, 0x0c, /* GPIO#8 -> GPIO#12 */
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0xff, 0xff /* INT#30 -> INT#31 */
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};
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return (1U << int2gpio[irq]);
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}
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void
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arm_mask_irq(uintptr_t nb)
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{
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intr_enabled &= ~(1 << nb);
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ixp425_set_intrmask();
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/*XXX; If it's a GPIO interrupt, ACK it know. Can it be a problem ?*/
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if ((1 << nb) & IXP425_INT_GPIOMASK)
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IXPREG(IXP425_GPIO_VBASE + IXP425_GPIO_GPISR) =
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ixp425_irq2gpio_bit(nb);
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}
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void
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arm_unmask_irq(uintptr_t nb)
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{
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intr_enabled |= (1 << nb);
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ixp425_set_intrmask();
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}
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static __inline uint32_t
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ixp425_irq_read(void)
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{
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return IXPREG(IXP425_INT_STATUS) & intr_enabled;
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}
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int
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arm_get_next_irq(void)
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{
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int irq;
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if ((irq = ixp425_irq_read()))
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return (ffs(irq) - 1);
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return (-1);
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}
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void
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cpu_reset(void)
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{
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bus_space_write_4(&ixp425_bs_tag, IXP425_TIMER_VBASE,
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IXP425_OST_WDOG_KEY, OST_WDOG_KEY_MAJICK);
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bus_space_write_4(&ixp425_bs_tag, IXP425_TIMER_VBASE,
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IXP425_OST_WDOG, 0);
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bus_space_write_4(&ixp425_bs_tag, IXP425_TIMER_VBASE,
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IXP425_OST_WDOG_ENAB, OST_WDOG_ENAB_RST_ENA |
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OST_WDOG_ENAB_CNT_ENA);
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printf("Reset failed!\n");
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for(;;);
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}
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static void
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ixp425_identify(driver_t *driver, device_t parent)
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{
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BUS_ADD_CHILD(parent, 0, "ixp", 0);
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}
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static int
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ixp425_probe(device_t dev)
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{
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device_set_desc(dev, "Intel IXP425");
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return (0);
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}
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static int
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ixp425_attach(device_t dev)
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{
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struct ixp425_softc *sc;
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sc = device_get_softc(dev);
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sc->sc_iot = &ixp425_bs_tag;
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KASSERT(ixp425_softc == NULL, ("ixp425_attach called twice?"));
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ixp425_softc = sc;
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intr_enabled = 0;
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ixp425_set_intrmask();
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ixp425_set_intrsteer();
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if (bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
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BUS_SPACE_MAXADDR, NULL, NULL, 0xffffffff, 0xff, 0xffffffff, 0,
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NULL, NULL, &sc->sc_dmat))
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panic("couldn't create the IXP425 dma tag !");
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sc->sc_irq_rman.rm_type = RMAN_ARRAY;
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sc->sc_irq_rman.rm_descr = "IXP425 IRQs";
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if (rman_init(&sc->sc_irq_rman) != 0 ||
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rman_manage_region(&sc->sc_irq_rman, 0, 31) != 0)
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panic("ixp425_attach: failed to set up IRQ rman");
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sc->sc_mem_rman.rm_type = RMAN_ARRAY;
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sc->sc_mem_rman.rm_descr = "IXP425 Memory";
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if (rman_init(&sc->sc_mem_rman) != 0 ||
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rman_manage_region(&sc->sc_mem_rman, 0, ~0) != 0)
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panic("ixp425_attach: failed to set up IRQ rman");
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device_add_child(dev, "pcib", 0);
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device_add_child(dev, "ixpclk", 0);
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device_add_child(dev, "ixpwdog", 0);
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device_add_child(dev, "ixpiic", 0);
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device_add_child(dev, "uart", 0);
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/* XXX these are optional, what if they are not configured? */
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device_add_child(dev, "ixpqmgr", 0);
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device_add_child(dev, "npe", 0); /* NPE-B */
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device_add_child(dev, "npe", 1); /* NPE-C */
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device_add_child(dev, "ata_avila", 0); /* XXX */
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device_add_child(dev, "led_avila", 0);
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if (bus_space_map(sc->sc_iot, IXP425_GPIO_HWBASE, IXP425_GPIO_SIZE,
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0, &sc->sc_gpio_ioh))
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panic("ixp425_attach: unable to map GPIO registers");
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if (bus_space_map(sc->sc_iot, IXP425_EXP_HWBASE, IXP425_EXP_SIZE,
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0, &sc->sc_exp_ioh))
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panic("ixp425_attach: unable to map Expansion Bus registers");
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bus_generic_probe(dev);
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bus_generic_attach(dev);
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return (0);
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}
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static struct resource *
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ixp425_alloc_resource(device_t dev, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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struct ixp425_softc *sc = device_get_softc(dev);
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struct rman *rmanp;
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struct resource *rv;
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uint32_t vbase;
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int isuart = (start == 0 && end == ~0); /* XXX how to do this right? */
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rv = NULL;
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switch (type) {
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case SYS_RES_IRQ:
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rmanp = &sc->sc_irq_rman;
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if (isuart) {
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if (device_get_unit(dev) == 0)
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start = IXP425_INT_UART0;
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else
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start = IXP425_INT_UART1;
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end = start;
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}
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break;
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case SYS_RES_MEMORY:
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rmanp = &sc->sc_mem_rman;
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if (isuart) {
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if (device_get_unit(dev) == 0)
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start = IXP425_UART0_HWBASE;
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else
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start = IXP425_UART1_HWBASE;
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end = start + 0x1000;
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}
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if (getvbase(start, end - start, &vbase))
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return (rv);
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break;
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default:
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return (rv);
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}
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rv = rman_reserve_resource(rmanp, start, end, count, flags, child);
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if (rv != NULL) {
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rman_set_rid(rv, *rid);
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if (type == SYS_RES_MEMORY) {
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rman_set_bustag(rv,
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isuart ? &ixp425_a4x_bs_tag : sc->sc_iot);
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rman_set_bushandle(rv, vbase);
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}
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}
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return (rv);
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}
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static int
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ixp425_setup_intr(device_t dev, device_t child,
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struct resource *ires, int flags, driver_filter_t *filt,
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driver_intr_t *intr, void *arg, void **cookiep)
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{
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uint32_t mask;
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int i;
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if (flags & INTR_TYPE_TTY) {
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/* XXX: wrong. */
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if (device_get_unit(dev) == 0)
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rman_set_start(ires, IXP425_INT_UART0);
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else
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rman_set_start(ires, IXP425_INT_UART1);
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rman_set_end(ires, rman_get_start(ires));
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}
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BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt, intr,
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arg, cookiep);
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mask = 0;
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for (i = rman_get_start(ires); i <= rman_get_end(ires); i++)
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mask |= 1 << i;
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intr_enabled |= mask;
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ixp425_set_intrmask();
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return (0);
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}
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static int
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ixp425_teardown_intr(device_t dev, device_t child, struct resource *res,
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void *cookie)
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{
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uint32_t mask;
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int i;
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mask = 0;
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for (i = rman_get_start(res); i <= rman_get_end(res); i++)
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mask |= 1 << i;
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intr_enabled &= ~mask;
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ixp425_set_intrmask();
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return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie));
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}
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static device_method_t ixp425_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ixp425_probe),
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DEVMETHOD(device_attach, ixp425_attach),
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DEVMETHOD(device_identify, ixp425_identify),
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/* Bus interface */
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DEVMETHOD(bus_alloc_resource, ixp425_alloc_resource),
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DEVMETHOD(bus_setup_intr, ixp425_setup_intr),
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DEVMETHOD(bus_teardown_intr, ixp425_teardown_intr),
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{0, 0},
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};
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static driver_t ixp425_driver = {
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"ixp",
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ixp425_methods,
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sizeof(struct ixp425_softc),
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};
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static devclass_t ixp425_devclass;
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DRIVER_MODULE(ixp, nexus, ixp425_driver, ixp425_devclass, 0, 0);
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