patch-2.4.26 linux-2.4.26/arch/ppc/platforms/redwood6.c

• Lines: 175
• Date: 2004-04-14 06:05:27.000000000 -0700
• Orig file: linux-2.4.25/arch/ppc/platforms/redwood6.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.25/arch/ppc/platforms/redwood6.c linux-2.4.26/arch/ppc/platforms/redwood6.c
@@ -0,0 +1,174 @@
+/*
+ *
+ *    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)
+{
+}