diff options
Diffstat (limited to 'arch/blackfin/mach-bf548/boards')
| -rw-r--r-- | arch/blackfin/mach-bf548/boards/Makefile | 5 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf548/boards/ezkit.c | 114 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf548/boards/led.S | 172 |
3 files changed, 291 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf548/boards/Makefile b/arch/blackfin/mach-bf548/boards/Makefile new file mode 100644 index 000000000000..486e07c99a51 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/Makefile @@ -0,0 +1,5 @@ +# +# arch/blackfin/mach-bf548/boards/Makefile +# + +obj-$(CONFIG_BFIN548_EZKIT) += ezkit.o led.o diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c new file mode 100644 index 000000000000..100379c4b926 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -0,0 +1,114 @@ +/* + * File: arch/blackfin/mach-bf548/boards/ezkit.c + * Based on: arch/blackfin/mach-bf537/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * 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 program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <asm/irq.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADSP-BF548-EZKIT"; + +/* + * Driver needs to know address, irq and flag pin. + */ + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { +#ifdef CONFIG_SERIAL_BFIN_UART0 + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART1 + { + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART2 + { + .start = 0xFFC02100, + .end = 0xFFC021FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART3 + { + .start = 0xFFC03100, + .end = 0xFFC031FF, + }, +#endif +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +static struct platform_device *ezkit_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices)); + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf548/boards/led.S b/arch/blackfin/mach-bf548/boards/led.S new file mode 100644 index 000000000000..f47daf3770d0 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/led.S @@ -0,0 +1,172 @@ +/**************************************************** + * LED1 ---- PG6 LED2 ---- PG7 * + * LED3 ---- PG8 LED4 ---- PG9 * + * LED5 ---- PG10 LED6 ---- PG11 * + ****************************************************/ + +#include <linux/linkage.h> +#include <asm/blackfin.h> + +/* All functions in this file save the registers they uses. + So there is no need to save any registers before calling them. */ + + .text; + +/* Initialize LEDs. */ + +ENTRY(_led_init) + LINK 0; + [--SP] = P0; + [--SP] = R0; + [--SP] = R1; + [--SP] = R2; + R1 = (PG6|PG7|PG8|PG9|PG10|PG11)(Z); + R2 = ~R1; + + P0.H = hi(PORTG_FER); + P0.L = lo(PORTG_FER); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + P0.H = hi(PORTG_DIR_SET); + P0.L = lo(PORTG_DIR_SET); + W[P0] = R1.L; + SSYNC; + + P0.H = hi(PORTG_INEN); + P0.L = lo(PORTG_INEN); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + R2 = [SP++]; + R1 = [SP++]; + R0 = [SP++]; + P0 = [SP++]; + RTS; + .size _led_init, .-_led_init + +/* Set one LED on. Leave other LEDs unchanged. + It expects the LED number passed through R0. */ + +ENTRY(_led_on) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG_SET); + P0.L = lo(PORTG_SET); + W[P0] = R1.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_on, .-_led_on + +/* Set one LED off. Leave other LEDs unchanged. */ + +ENTRY(_led_off) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG_CLEAR); + P0.L = lo(PORTG_CLEAR); + W[P0] = R1.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_off, .-_led_off + +/* Toggle one LED. Leave other LEDs unchanged. */ + +ENTRY(_led_toggle) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R0 = W[P0](Z); + SSYNC; + R0 = R0 ^ R1; + W[P0] = R0.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle, .-_led_toggle + +/* Display the number using LEDs in binary format. */ + +ENTRY(_led_disp_num) + LINK 0; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R2 = 6(X); + R0 <<= R2; + R1 <<= R2; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R2 = W[P0](Z); + SSYNC; + R1 = ~R1; + R2 = R2 & R1; + R2 = R2 | R0; + W[P0] = R2.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_disp_num, .-_led_disp_num + +/* Toggle the number using LEDs in binary format. */ + +ENTRY(_led_toggle_num) + LINK 0; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R1 = 6(X); + R0 <<= R1; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R1 = W[P0](Z); + SSYNC; + R1 = R1 ^ R0; + W[P0] = R1.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle_num, .-_led_toggle_num + |