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authorDavid Brownell <dbrownell@users.sourceforge.net>2006-12-06 20:14:03 -0500
committerTony Lindgren <tony@atomide.com>2007-09-20 12:59:20 -0400
commitf604931238dff7b44ef52ac2ad1f557e45b25b38 (patch)
treeefcacb3d5a3449cb0557d1194b202de7823f2184 /arch
parent1c22cc13256046162bb8e7b44763f6c39790af74 (diff)
ARM: OMAP: abstract debug card setup (smc, leds)
Additional cleanup for debug boards on H2/P2/H3/H4: move the init code that's not board-specific into a new file where it can be easily shared between all the different boards (avoiding code duplication, and making it easier to support more devices). Make H4 use that. This should be easy to drop in to the OMAP1 boards using these debug cards; the only difference seems to be that the p2 does an extra reset of the smc using the fpga (probably all boards could do that, if it's necessary) and doesn't use the gpio mux or request APIs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/Kconfig2
-rw-r--r--arch/arm/mach-omap2/board-h4.c46
-rw-r--r--arch/arm/plat-omap/Kconfig9
-rw-r--r--arch/arm/plat-omap/Makefile1
-rw-r--r--arch/arm/plat-omap/debug-devices.c86
5 files changed, 98 insertions, 46 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 7393109f5c3..cf4268e46b0 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -21,7 +21,7 @@ config MACH_OMAP_GENERIC
21config MACH_OMAP_H4 21config MACH_OMAP_H4
22 bool "OMAP 2420 H4 board" 22 bool "OMAP 2420 H4 board"
23 depends on ARCH_OMAP2 && ARCH_OMAP24XX 23 depends on ARCH_OMAP2 && ARCH_OMAP24XX
24 select OMAP_DEBUG_LEDS if LEDS || LEDS_OMAP_DEBUG 24 select OMAP_DEBUG_DEVICES
25 25
26config MACH_OMAP_APOLLON 26config MACH_OMAP_APOLLON
27 bool "OMAP 2420 Apollon board" 27 bool "OMAP 2420 Apollon board"
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 452193f0153..f125f432cc3 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -131,26 +131,6 @@ static struct platform_device h4_flash_device = {
131 .resource = &h4_flash_resource, 131 .resource = &h4_flash_resource,
132}; 132};
133 133
134static struct resource h4_smc91x_resources[] = {
135 [0] = {
136 .start = OMAP24XX_ETHR_START, /* Physical */
137 .end = OMAP24XX_ETHR_START + 0xf,
138 .flags = IORESOURCE_MEM,
139 },
140 [1] = {
141 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
142 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
143 .flags = IORESOURCE_IRQ,
144 },
145};
146
147static struct platform_device h4_smc91x_device = {
148 .name = "smc91x",
149 .id = -1,
150 .num_resources = ARRAY_SIZE(h4_smc91x_resources),
151 .resource = h4_smc91x_resources,
152};
153
154/* Select between the IrDA and aGPS module 134/* Select between the IrDA and aGPS module
155 */ 135 */
156static int h4_select_irda(struct device *dev, int state) 136static int h4_select_irda(struct device *dev, int state)
@@ -266,29 +246,14 @@ static struct platform_device h4_lcd_device = {
266 .id = -1, 246 .id = -1,
267}; 247};
268 248
269static struct resource h4_led_resources[] = {
270 [0] = {
271 .flags = IORESOURCE_MEM,
272 },
273};
274
275static struct platform_device h4_led_device = {
276 .name = "omap_dbg_led",
277 .id = -1,
278 .num_resources = ARRAY_SIZE(h4_led_resources),
279 .resource = h4_led_resources,
280};
281
282static struct platform_device *h4_devices[] __initdata = { 249static struct platform_device *h4_devices[] __initdata = {
283 &h4_smc91x_device,
284 &h4_flash_device, 250 &h4_flash_device,
285 &h4_irda_device, 251 &h4_irda_device,
286 &h4_kp_device, 252 &h4_kp_device,
287 &h4_lcd_device, 253 &h4_lcd_device,
288 &h4_led_device,
289}; 254};
290 255
291static inline void __init h4_init_smc91x(void) 256static inline void __init h4_init_debug(void)
292{ 257{
293 /* Make sure CS1 timings are correct */ 258 /* Make sure CS1 timings are correct */
294 GPMC_CONFIG1_1 = 0x00011200; 259 GPMC_CONFIG1_1 = 0x00011200;
@@ -301,12 +266,8 @@ static inline void __init h4_init_smc91x(void)
301 udelay(100); 266 udelay(100);
302 267
303 omap_cfg_reg(M15_24XX_GPIO92); 268 omap_cfg_reg(M15_24XX_GPIO92);
304 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) { 269 if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
305 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", 270 gpmc_cs_free(eth_cs);
306 OMAP24XX_ETHR_GPIO_IRQ);
307 return;
308 }
309 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
310} 271}
311 272
312static void __init omap_h4_init_irq(void) 273static void __init omap_h4_init_irq(void)
@@ -314,7 +275,6 @@ static void __init omap_h4_init_irq(void)
314 omap2_init_common_hw(); 275 omap2_init_common_hw();
315 omap_init_irq(); 276 omap_init_irq();
316 omap_gpio_init(); 277 omap_gpio_init();
317 h4_init_smc91x();
318} 278}
319 279
320static struct omap_uart_config h4_uart_config __initdata = { 280static struct omap_uart_config h4_uart_config __initdata = {
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index cfc69f3842f..c1f7e5a819a 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -20,10 +20,15 @@ endchoice
20 20
21comment "OMAP Feature Selections" 21comment "OMAP Feature Selections"
22 22
23config OMAP_DEBUG_LEDS 23config OMAP_DEBUG_DEVICES
24 bool 24 bool
25 help 25 help
26 For debug card leds on TI reference boards. 26 For debug cards on TI reference boards.
27
28config OMAP_DEBUG_LEDS
29 bool
30 depends on OMAP_DEBUG_DEVICES
31 default y if LEDS || LEDS_OMAP_DEBUG
27 32
28config OMAP_RESET_CLOCKS 33config OMAP_RESET_CLOCKS
29 bool "Reset unused clocks during boot" 34 bool "Reset unused clocks during boot"
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 41a3c1cf3bd..2549129aabc 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -17,4 +17,5 @@ obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o
17 17
18obj-$(CONFIG_CPU_FREQ) += cpu-omap.o 18obj-$(CONFIG_CPU_FREQ) += cpu-omap.o
19obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o 19obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
20obj-$(CONFIG_OMAP_DEBUG_DEVICES) += debug-devices.o
20obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o 21obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
diff --git a/arch/arm/plat-omap/debug-devices.c b/arch/arm/plat-omap/debug-devices.c
new file mode 100644
index 00000000000..83a5f8b9185
--- /dev/null
+++ b/arch/arm/plat-omap/debug-devices.c
@@ -0,0 +1,86 @@
1/*
2 * linux/arch/arm/plat-omap/debug-devices.c
3 *
4 * Copyright (C) 2005 Nokia Corporation
5 * Modified from mach-omap2/board-h4.c
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/platform_device.h>
15
16#include <asm/hardware.h>
17#include <asm/io.h>
18
19#include <asm/arch/board.h>
20#include <asm/arch/gpio.h>
21
22
23/* Many OMAP development platforms reuse the same "debug board"; these
24 * platforms include H2, H3, H4, and Perseus2.
25 */
26
27static struct resource smc91x_resources[] = {
28 [0] = {
29 .flags = IORESOURCE_MEM,
30 },
31 [1] = {
32 .flags = IORESOURCE_IRQ,
33 },
34};
35
36static struct platform_device smc91x_device = {
37 .name = "smc91x",
38 .id = -1,
39 .num_resources = ARRAY_SIZE(smc91x_resources),
40 .resource = smc91x_resources,
41};
42
43static struct resource led_resources[] = {
44 [0] = {
45 .flags = IORESOURCE_MEM,
46 },
47};
48
49static struct platform_device led_device = {
50 .name = "omap_dbg_led",
51 .id = -1,
52 .num_resources = ARRAY_SIZE(led_resources),
53 .resource = led_resources,
54};
55
56static struct platform_device *debug_devices[] __initdata = {
57 &smc91x_device,
58 &led_device,
59 /* ps2 kbd + mouse ports */
60 /* 4 extra uarts */
61 /* 6 input dip switches */
62 /* 8 output pins */
63};
64
65int __init debug_card_init(u32 addr, unsigned gpio)
66{
67 int status;
68
69 smc91x_resources[0].start = addr + 0x300;
70 smc91x_resources[0].end = addr + 0x30f;
71
72 smc91x_resources[1].start = OMAP_GPIO_IRQ(gpio);
73 smc91x_resources[1].end = OMAP_GPIO_IRQ(gpio);
74
75 status = omap_request_gpio(gpio);
76 if (status < 0) {
77 printk(KERN_ERR "GPIO%d unavailable for smc91x IRQ\n", gpio);
78 return status;
79 }
80 omap_set_gpio_direction(gpio, 1);
81
82 led_resources[0].start = addr;
83 led_resources[0].end = addr + SZ_4K - 1;
84
85 return platform_add_devices(debug_devices, ARRAY_SIZE(debug_devices));
86}