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/*
* arch/ppc/platforms/4xx/redwood6.c
*
* Author: Armin Kuster <akuster@mvista.com>
*
* 2002 (c) MontaVista, Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/pagemap.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
#include <asm/io.h>
#include <asm/ppc4xx_pic.h>
#include <linux/delay.h>
#include <asm/machdep.h>
/*
* Define external IRQ senses and polarities.
*/
unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 7 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 8 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 9 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 4 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 5 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 6 */
};
static struct resource smc91x_resources[] = {
[0] = {
.start = SMC91111_BASE_ADDR,
.end = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = SMC91111_IRQ,
.end = SMC91111_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
static struct platform_device *redwood6_devs[] __initdata = {
&smc91x_device,
};
static int __init
redwood6_platform_add_devices(void)
{
return platform_add_devices(redwood6_devs, ARRAY_SIZE(redwood6_devs));
}
void __init
redwood6_setup_arch(void)
{
#ifdef CONFIG_IDE
void *xilinx, *xilinx_1, *xilinx_2;
unsigned short us_reg5;
#endif
ppc4xx_setup_arch();
#ifdef CONFIG_IDE
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
/* Identify the system */
printk(KERN_INFO "IBM Redwood6 (STBx25XX) Platform\n");
printk(KERN_INFO
"Port by MontaVista Software, Inc. (source@mvista.com)\n");
device_initcall(redwood6_platform_add_devices);
}
void __init
redwood6_map_io(void)
{
int i;
ppc4xx_map_io();
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
platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
ppc4xx_init(r3, r4, r5, r6, r7);
ppc_md.setup_arch = redwood6_setup_arch;
ppc_md.setup_io_mappings = redwood6_map_io;
}
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