File: [Development] / linux-2.4-xfs / arch / ppc / platforms / redwood6.c (download)
Revision 1.2, Mon Apr 19 11:06:40 2004 UTC (13 years, 6 months ago) by nathans
Branch: MAIN
CVS Tags: HEAD Changes since 1.1: +0 -174
lines
Fix up merge - an over-eager script seems to have patched some files twice..
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/*
*
* Module name: redwood6.c
*
* Description:
* IBM redwood6 eval board file
*
* Author: Armin Kuster
* Copyright 2002 MontaVista Software Inc.
*
* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
* History: July 10, 2002 - Armin
* initial release
*
* : July 16, 2002 - Armin
* added xilinx init code for ide interface
* added IRQ table
*
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/pagemap.h>
#include <asm/io.h>
#include <asm/ppc4xx_pic.h>
#include <linux/delay.h>
#include <asm/machdep.h>
/*
* Define all of the IRQ senses and polarities.
*/
static u_char redwood6_IRQ_initsenses[] __initdata = {
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 0: RTC/FPC */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 1: Transport */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 2: Audio Dec */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 3: Video Dec */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 4: DMA Chan 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 5: DMA Chan 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 6: DMA Chan 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 7: DMA Chan 3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 8: SmartCard 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 9: IIC0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 10: IRR */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 11: Cap Timers */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 12: Cmp Timers */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 13: Serial Port */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 14: Soft Modem */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 15: Down Ctrs */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 16: SmartCard 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 17: Ext Int 7 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 18: Ext Int 8 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 19: Ext Int 9 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 20: Serial 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 21: Serial 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 22: Serial 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 23: XPT_DMA */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 24: DCR timeout */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 25: Ext Int 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 26: Ext Int 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 27: Ext Int 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 28: Ext Int 3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 29: Ext Int 4 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 30: Ext Int 5 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 31: Ext Int 6 */
};
void __init
board_setup_arch(void)
{
#ifdef CONFIG_IDE
void *xilinx, *xilinx_1, *xilinx_2;
unsigned short us_reg5;
xilinx = (unsigned long) ioremap(IDE_XLINUX_MUX_BASE, 0x10);
/* init xilinx control registers - enable ide mux, clear reset bit */
if (!xilinx) {
printk(KERN_CRIT
"redwood6_setup_arch() xilinxi ioremap failed\n");
return;
}
xilinx_1 = xilinx + 0xa;
xilinx_2 = xilinx + 0xe;
us_reg5 = readb(xilinx_1);
writeb(0x01d1, xilinx_1);
writeb(0x0008, xilinx_2);
udelay(10 * 1000);
writeb(0x01d1, xilinx_1);
writeb(0x0008, xilinx_2);
#endif
#ifdef DEBUG_BRINGUP
bd_t *bip = (bd_t *) __res;
printk("\n");
printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
printk("\n");
printk("bi_s_version\t %s\n", bip->bi_s_version);
printk("bi_r_version\t %s\n", bip->bi_r_version);
printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize,
bip->bi_memsize / (1024 * 1000));
printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0,
bip->bi_enetaddr[0], bip->bi_enetaddr[1], bip->bi_enetaddr[2],
bip->bi_enetaddr[3], bip->bi_enetaddr[4], bip->bi_enetaddr[5]);
printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n",
bip->bi_intfreq, bip->bi_intfreq / 1000000);
printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n",
bip->bi_busfreq, bip->bi_busfreq / 1000000);
printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n",
bip->bi_tbfreq, bip->bi_tbfreq / 1000000);
printk("\n");
#endif
ibm4xxPIC_InitSenses = redwood6_IRQ_initsenses;
ibm4xxPIC_NumInitSenses = sizeof(redwood6_IRQ_initsenses);
/* Identify the system */
printk(KERN_INFO "IBM Redwood6 (STBx25XX) Platform\n");
printk(KERN_INFO
"Port by MontaVista Software, Inc. (source@mvista.com)\n");
}
void __init
board_io_mapping(void)
{
int i;
for (i = 0; i < 16; i++) {
unsigned long v, p;
/* 0x400x0000 -> 0xe00x0000 */
p = 0x40000000 | (i << 16);
v = STBx25xx_IO_BASE | (i << 16);
io_block_mapping(v, p, PAGE_SIZE,
_PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) |
_PAGE_GUARDED);
}
}
void __init
board_setup_irq(void)
{
}
void __init
board_init(void)
{
}