1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
From 1ebb6f864a831fc8efebe4a7a9f65d07fa31466a Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Sat, 15 May 2010 21:47:32 +0200
Subject: [PATCH 45/45] ARM: OMAP: beagle: add support for beagleFPGA expansionboard: http://members.cox.net/ebrombaugh1/embedded/beagle/beagle_fpga.html
---
arch/arm/mach-omap2/board-omap3beagle.c | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 078e026..b313350 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
+#include <linux/spi/spi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@@ -47,6 +48,7 @@
#include <plat/timer-gp.h>
#include <plat/clock.h>
#include <plat/omap-pm.h>
+#include <plat/mcspi.h>
#include "mux.h"
#include "mmc-twl4030.h"
@@ -609,6 +611,24 @@ static struct platform_device keys_gpio = {
},
};
+static struct spi_board_info beaglefpga_mcspi_board_info[] = {
+ // spi 4.0
+ {
+ .modalias = "spidev",
+ .max_speed_hz = 48000000, //48 Mbps
+ .bus_num = 4,
+ .chip_select = 0,
+ .mode = SPI_MODE_1,
+ },
+};
+
+static void __init beaglefpga_init_spi(void)
+{
+ /* hook the spi ports to the spidev driver */
+ spi_register_board_info(beaglefpga_mcspi_board_info,
+ ARRAY_SIZE(beaglefpga_mcspi_board_info));
+}
+
static void __init omap3_beagle_init_irq(void)
{
if (cpu_is_omap3630())
@@ -769,6 +789,12 @@ static void __init omap3_beagle_init(void)
gpio_export(162, 1);
}
+ if(!strcmp(expansionboard_name, "beaglefpga"))
+ {
+ printk(KERN_INFO "Beagle expansionboard: Using McSPI for SPI\n");
+ beaglefpga_init_spi();
+ }
+
usb_musb_init();
usb_ehci_init(&ehci_pdata);
omap3beagle_flash_init();
--
1.6.6.1
|
