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kernel-ark/arch/ppc/syslib/virtex_devices.c
Grant Likely d26cd57071 [POWERPC] New registration for common Xilinx Virtex ppc405 platform devices 
Currently virtex support in mainline make use of the infrastructure in
arch/ppc/syslib/ppc_sys.c for registering common devices on virtex ppc405
platforms.  The ppc_sys.c code is not well suited to the dynamic nature of
FPGA designs and makes adding new board ports more complex.  This patch
adds a new listing of common devices which does not depend on the ppc_sys.c
infrastructure.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-30 11:02:04 +10:00

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/*
* Virtex hard ppc405 core common device listing
*
* Copyright 2005-2007 Secret Lab Technologies Ltd.
* Copyright 2005 Freescale Semiconductor Inc.
* Copyright 2002-2004 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.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/serial_8250.h>
#include <syslib/virtex_devices.h>
#include <platforms/4xx/xparameters/xparameters.h>
#include <asm/io.h>
/*
* UARTLITE: shortcut macro for single instance
*/
#define XPAR_UARTLITE(num) { \
.name = "uartlite", \
.id = num, \
.num_resources = 2, \
.resource = (struct resource[]) { \
{ \
.start = XPAR_UARTLITE_##num##_BASEADDR + 3, \
.end = XPAR_UARTLITE_##num##_HIGHADDR, \
.flags = IORESOURCE_MEM, \
}, \
{ \
.start = XPAR_INTC_0_UARTLITE_##num##_VEC_ID, \
.flags = IORESOURCE_IRQ, \
}, \
}, \
}
/*
* Full UART: shortcut macro for single instance + platform data structure
*/
#define XPAR_UART(num) { \
.mapbase = XPAR_UARTNS550_##num##_BASEADDR + 3, \
.irq = XPAR_INTC_0_UARTNS550_##num##_VEC_ID, \
.iotype = UPIO_MEM, \
.uartclk = XPAR_UARTNS550_##num##_CLOCK_FREQ_HZ, \
.flags = UPF_BOOT_AUTOCONF, \
.regshift = 2, \
}
/*
* SystemACE: shortcut macro for single instance
*/
#define XPAR_SYSACE(num) { \
.name = "xsysace", \
.id = XPAR_SYSACE_##num##_DEVICE_ID, \
.num_resources = 2, \
.resource = (struct resource[]) { \
{ \
.start = XPAR_SYSACE_##num##_BASEADDR, \
.end = XPAR_SYSACE_##num##_HIGHADDR, \
.flags = IORESOURCE_MEM, \
}, \
{ \
.start = XPAR_INTC_0_SYSACE_##num##_VEC_ID, \
.flags = IORESOURCE_IRQ, \
}, \
}, \
}
/* UART 8250 driver platform data table */
struct plat_serial8250_port virtex_serial_platform_data[] = {
#if defined(XPAR_UARTNS550_0_BASEADDR)
XPAR_UART(0),
#endif
#if defined(XPAR_UARTNS550_1_BASEADDR)
XPAR_UART(1),
#endif
#if defined(XPAR_UARTNS550_2_BASEADDR)
XPAR_UART(2),
#endif
#if defined(XPAR_UARTNS550_3_BASEADDR)
XPAR_UART(3),
#endif
#if defined(XPAR_UARTNS550_4_BASEADDR)
XPAR_UART(4),
#endif
#if defined(XPAR_UARTNS550_5_BASEADDR)
XPAR_UART(5),
#endif
#if defined(XPAR_UARTNS550_6_BASEADDR)
XPAR_UART(6),
#endif
#if defined(XPAR_UARTNS550_7_BASEADDR)
XPAR_UART(7),
#endif
{ }, /* terminated by empty record */
};
struct platform_device virtex_platform_devices[] = {
/* UARTLITE instances */
#if defined(XPAR_UARTLITE_0_BASEADDR)
XPAR_UARTLITE(0),
#endif
#if defined(XPAR_UARTLITE_1_BASEADDR)
XPAR_UARTLITE(1),
#endif
#if defined(XPAR_UARTLITE_2_BASEADDR)
XPAR_UARTLITE(2),
#endif
#if defined(XPAR_UARTLITE_3_BASEADDR)
XPAR_UARTLITE(3),
#endif
#if defined(XPAR_UARTLITE_4_BASEADDR)
XPAR_UARTLITE(4),
#endif
#if defined(XPAR_UARTLITE_5_BASEADDR)
XPAR_UARTLITE(5),
#endif
#if defined(XPAR_UARTLITE_6_BASEADDR)
XPAR_UARTLITE(6),
#endif
#if defined(XPAR_UARTLITE_7_BASEADDR)
XPAR_UARTLITE(7),
#endif
/* Full UART instances */
#if defined(XPAR_UARTNS550_0_BASEADDR)
{
.name = "serial8250",
.id = 0,
.dev.platform_data = virtex_serial_platform_data,
},
#endif
/* SystemACE instances */
#if defined(XPAR_SYSACE_0_BASEADDR)
XPAR_SYSACE(0),
#endif
#if defined(XPAR_SYSACE_1_BASEADDR)
XPAR_SYSACE(1),
#endif
/* ML300/403 reference design framebuffer */
#if defined(XPAR_TFT_0_BASEADDR)
{
.name = "xilinxfb",
.id = 0,
.num_resources = 1,
.resource = (struct resource[]) {
{
.start = XPAR_TFT_0_BASEADDR,
.end = XPAR_TFT_0_BASEADDR+7,
.flags = IORESOURCE_IO,
},
},
},
#endif
};
/* Early serial support functions */
static void __init
virtex_early_serial_init(int num, struct plat_serial8250_port *pdata)
{
#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
struct uart_port serial_req;
memset(&serial_req, 0, sizeof(serial_req));
serial_req.mapbase = pdata->mapbase;
serial_req.membase = pdata->membase;
serial_req.irq = pdata->irq;
serial_req.uartclk = pdata->uartclk;
serial_req.regshift = pdata->regshift;
serial_req.iotype = pdata->iotype;
serial_req.flags = pdata->flags;
gen550_init(num, &serial_req);
#endif
}
void __init
virtex_early_serial_map(void)
{
#ifdef CONFIG_SERIAL_8250
struct plat_serial8250_port *pdata;
int i = 0;
pdata = virtex_serial_platform_data;
while(pdata && pdata->flags) {
pdata->membase = ioremap(pdata->mapbase, 0x100);
virtex_early_serial_init(i, pdata);
pdata++;
i++;
}
#endif /* CONFIG_SERIAL_8250 */
}
/*
* default fixup routine; do nothing and return success.
*
* Reimplement this routine in your custom board support file to
* override the default behaviour
*/
int __attribute__ ((weak))
virtex_device_fixup(struct platform_device *dev)
{
return 0;
}
static int __init virtex_init(void)
{
struct platform_device *index = virtex_platform_devices;
unsigned int ret = 0;
int i;
for (i = 0; i < ARRAY_SIZE(virtex_platform_devices); i++, index++) {
if (virtex_device_fixup(index) != 0)
continue;
if (platform_device_register(index)) {
ret = 1;
printk(KERN_ERR "cannot register dev %s:%d\n",
index->name, index->id);
}
}
return ret;
}
subsys_initcall(virtex_init);
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