diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/redwood6.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/redwood6.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/arch/ppc/platforms/4xx/redwood6.c b/arch/ppc/platforms/4xx/redwood6.c new file mode 100644 index 000000000000..8b1012994dfc --- /dev/null +++ b/arch/ppc/platforms/4xx/redwood6.c @@ -0,0 +1,159 @@ +/* + * 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/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; +} |