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authorRoy Huang <roy.huang@analog.com>2007-07-12 10:41:45 -0400
committerBryan Wu <bryan.wu@analog.com>2007-07-12 10:41:45 -0400
commit24a07a124198153540f8f43d9e91d16227aba66e (patch)
tree917b2011e67e224515830833b1151e276b6c6137 /arch/blackfin/mach-bf548/boards
parent088eec1192a0ae60fc218796027e622008af36c0 (diff)
Blackfin arch: initial supporting for BF548-EZKIT
The ADSP-BF54x was specifically designed to meet the needs of convergent multimedia applications where system performance and cost are essential ingredients. The integration of multimedia, human interface, and connectivity peripherals combined with increased system bandwidth and on-chip memory provides customers a platform to design the most demanding applications. Since now, ADSP-BF54x will be supported in the Linux kernel and bunch of related drivers such as USB OTG, ATAPI, NAND flash controller, LCD framebuffer, sound, touch screen will be submitted later. Please enjoy the show. Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/mach-bf548/boards')
-rw-r--r--arch/blackfin/mach-bf548/boards/Makefile5
-rw-r--r--arch/blackfin/mach-bf548/boards/ezkit.c114
-rw-r--r--arch/blackfin/mach-bf548/boards/led.S172
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 @@
1#
2# arch/blackfin/mach-bf548/boards/Makefile
3#
4
5obj-$(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 @@
1/*
2 * File: arch/blackfin/mach-bf548/boards/ezkit.c
3 * Based on: arch/blackfin/mach-bf537/boards/ezkit.c
4 * Author: Aidan Williams <aidan@nicta.com.au>
5 *
6 * Created:
7 * Description:
8 *
9 * Modified:
10 * Copyright 2005 National ICT Australia (NICTA)
11 * Copyright 2004-2007 Analog Devices Inc.
12 *
13 * Bugs: Enter bugs at http://blackfin.uclinux.org/
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, see the file COPYING, or write
27 * to the Free Software Foundation, Inc.,
28 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 */
30
31#include <linux/device.h>
32#include <linux/platform_device.h>
33#include <linux/mtd/mtd.h>
34#include <linux/mtd/partitions.h>
35#include <linux/spi/spi.h>
36#include <linux/spi/flash.h>
37#include <asm/irq.h>
38#include <linux/irq.h>
39#include <linux/interrupt.h>
40#include <asm/bfin5xx_spi.h>
41
42/*
43 * Name the Board for the /proc/cpuinfo
44 */
45char *bfin_board_name = "ADSP-BF548-EZKIT";
46
47/*
48 * Driver needs to know address, irq and flag pin.
49 */
50
51#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
52static struct platform_device rtc_device = {
53 .name = "rtc-bfin",
54 .id = -1,
55};
56#endif
57
58#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
59static struct resource bfin_uart_resources[] = {
60#ifdef CONFIG_SERIAL_BFIN_UART0
61 {
62 .start = 0xFFC00400,
63 .end = 0xFFC004FF,
64 .flags = IORESOURCE_MEM,
65 },
66#endif
67#ifdef CONFIG_SERIAL_BFIN_UART1
68 {
69 .start = 0xFFC02000,
70 .end = 0xFFC020FF,
71 .flags = IORESOURCE_MEM,
72 },
73#endif
74#ifdef CONFIG_SERIAL_BFIN_UART2
75 {
76 .start = 0xFFC02100,
77 .end = 0xFFC021FF,
78 .flags = IORESOURCE_MEM,
79 },
80#endif
81#ifdef CONFIG_SERIAL_BFIN_UART3
82 {
83 .start = 0xFFC03100,
84 .end = 0xFFC031FF,
85 },
86#endif
87};
88
89static struct platform_device bfin_uart_device = {
90 .name = "bfin-uart",
91 .id = 1,
92 .num_resources = ARRAY_SIZE(bfin_uart_resources),
93 .resource = bfin_uart_resources,
94};
95#endif
96
97static struct platform_device *ezkit_devices[] __initdata = {
98#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
99 &rtc_device,
100#endif
101
102#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
103 &bfin_uart_device,
104#endif
105};
106
107static int __init stamp_init(void)
108{
109 printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
110 platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
111 return 0;
112}
113
114arch_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 @@
1/****************************************************
2 * LED1 ---- PG6 LED2 ---- PG7 *
3 * LED3 ---- PG8 LED4 ---- PG9 *
4 * LED5 ---- PG10 LED6 ---- PG11 *
5 ****************************************************/
6
7#include <linux/linkage.h>
8#include <asm/blackfin.h>
9
10/* All functions in this file save the registers they uses.
11 So there is no need to save any registers before calling them. */
12
13 .text;
14
15/* Initialize LEDs. */
16
17ENTRY(_led_init)
18 LINK 0;
19 [--SP] = P0;
20 [--SP] = R0;
21 [--SP] = R1;
22 [--SP] = R2;
23 R1 = (PG6|PG7|PG8|PG9|PG10|PG11)(Z);
24 R2 = ~R1;
25
26 P0.H = hi(PORTG_FER);
27 P0.L = lo(PORTG_FER);
28 R0 = W[P0](Z);
29 SSYNC;
30 R0 = R0 & R2;
31 W[P0] = R0.L;
32 SSYNC;
33
34 P0.H = hi(PORTG_DIR_SET);
35 P0.L = lo(PORTG_DIR_SET);
36 W[P0] = R1.L;
37 SSYNC;
38
39 P0.H = hi(PORTG_INEN);
40 P0.L = lo(PORTG_INEN);
41 R0 = W[P0](Z);
42 SSYNC;
43 R0 = R0 & R2;
44 W[P0] = R0.L;
45 SSYNC;
46
47 R2 = [SP++];
48 R1 = [SP++];
49 R0 = [SP++];
50 P0 = [SP++];
51 RTS;
52 .size _led_init, .-_led_init
53
54/* Set one LED on. Leave other LEDs unchanged.
55 It expects the LED number passed through R0. */
56
57ENTRY(_led_on)
58 LINK 0;
59 [--SP] = P0;
60 [--SP] = R1;
61 CALL _led_init;
62 R1 = 1;
63 R0 += 5;
64 R1 <<= R0;
65 P0.H = hi(PORTG_SET);
66 P0.L = lo(PORTG_SET);
67 W[P0] = R1.L;
68 SSYNC;
69 R1 = [SP++];
70 P0 = [SP++];
71 UNLINK;
72 RTS;
73 .size _led_on, .-_led_on
74
75/* Set one LED off. Leave other LEDs unchanged. */
76
77ENTRY(_led_off)
78 LINK 0;
79 [--SP] = P0;
80 [--SP] = R1;
81 CALL _led_init;
82 R1 = 1;
83 R0 += 5;
84 R1 <<= R0;
85 P0.H = hi(PORTG_CLEAR);
86 P0.L = lo(PORTG_CLEAR);
87 W[P0] = R1.L;
88 SSYNC;
89 R1 = [SP++];
90 P0 = [SP++];
91 UNLINK;
92 RTS;
93 .size _led_off, .-_led_off
94
95/* Toggle one LED. Leave other LEDs unchanged. */
96
97ENTRY(_led_toggle)
98 LINK 0;
99 [--SP] = P0;
100 [--SP] = R1;
101 CALL _led_init;
102 R1 = 1;
103 R0 += 5;
104 R1 <<= R0;
105 P0.H = hi(PORTG);
106 P0.L = lo(PORTG);
107 R0 = W[P0](Z);
108 SSYNC;
109 R0 = R0 ^ R1;
110 W[P0] = R0.L;
111 SSYNC;
112 R1 = [SP++];
113 P0 = [SP++];
114 UNLINK;
115 RTS;
116 .size _led_toggle, .-_led_toggle
117
118/* Display the number using LEDs in binary format. */
119
120ENTRY(_led_disp_num)
121 LINK 0;
122 [--SP] = P0;
123 [--SP] = R1;
124 [--SP] = R2;
125 CALL _led_init;
126 R1 = 0x3f(X);
127 R0 = R0 & R1;
128 R2 = 6(X);
129 R0 <<= R2;
130 R1 <<= R2;
131 P0.H = hi(PORTG);
132 P0.L = lo(PORTG);
133 R2 = W[P0](Z);
134 SSYNC;
135 R1 = ~R1;
136 R2 = R2 & R1;
137 R2 = R2 | R0;
138 W[P0] = R2.L;
139 SSYNC;
140 R2 = [SP++];
141 R1 = [SP++];
142 P0 = [SP++];
143 UNLINK;
144 RTS;
145 .size _led_disp_num, .-_led_disp_num
146
147/* Toggle the number using LEDs in binary format. */
148
149ENTRY(_led_toggle_num)
150 LINK 0;
151 [--SP] = P0;
152 [--SP] = R1;
153 [--SP] = R2;
154 CALL _led_init;
155 R1 = 0x3f(X);
156 R0 = R0 & R1;
157 R1 = 6(X);
158 R0 <<= R1;
159 P0.H = hi(PORTG);
160 P0.L = lo(PORTG);
161 R1 = W[P0](Z);
162 SSYNC;
163 R1 = R1 ^ R0;
164 W[P0] = R1.L;
165 SSYNC;
166 R2 = [SP++];
167 R1 = [SP++];
168 P0 = [SP++];
169 UNLINK;
170 RTS;
171 .size _led_toggle_num, .-_led_toggle_num
172
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