diff options
Diffstat (limited to 'arch/ppc/syslib')
| -rw-r--r-- | arch/ppc/syslib/virtex_devices.c | 233 | ||||
| -rw-r--r-- | arch/ppc/syslib/virtex_devices.h | 27 |
2 files changed, 260 insertions, 0 deletions
diff --git a/arch/ppc/syslib/virtex_devices.c b/arch/ppc/syslib/virtex_devices.c new file mode 100644 index 00000000000..16546788e23 --- /dev/null +++ b/arch/ppc/syslib/virtex_devices.c @@ -0,0 +1,233 @@ +/* + * 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); diff --git a/arch/ppc/syslib/virtex_devices.h b/arch/ppc/syslib/virtex_devices.h new file mode 100644 index 00000000000..4a17dd3927c --- /dev/null +++ b/arch/ppc/syslib/virtex_devices.h @@ -0,0 +1,27 @@ +/* + * Common support header for virtex ppc405 platforms + * + * Copyright 2007 Secret Lab Technologies Ltd. + * + * 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. + */ + +#ifndef __ASM_VIRTEX_DEVICES_H__ +#define __ASM_VIRTEX_DEVICES_H__ + +#include <linux/platform_device.h> + +void __init virtex_early_serial_map(void); + +/* Prototype for device fixup routine. Implement this routine in the + * board specific fixup code and the generic setup code will call it for + * each device is the platform device list. + * + * If the hook returns a non-zero value, then the device will not get + * registered with the platform bus + */ +int virtex_device_fixup(struct platform_device *dev); + +#endif /* __ASM_VIRTEX_DEVICES_H__ */ |