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authorJiri Kosina <jkosina@suse.cz>2010-06-16 12:08:13 -0400
committerJiri Kosina <jkosina@suse.cz>2010-06-16 12:08:13 -0400
commitf1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch)
treec2c130a74be25b0b2dff992e1a195e2728bdaadd /arch/m68knommu/platform/5249
parentfd0961ff67727482bb20ca7e8ea97b83e9de2ddb (diff)
parent7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff)
Merge branch 'master' into for-next
Diffstat (limited to 'arch/m68knommu/platform/5249')
-rw-r--r--arch/m68knommu/platform/5249/config.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/5249/config.c b/arch/m68knommu/platform/5249/config.c
index 646f5ba462fc..ceb31e5744a6 100644
--- a/arch/m68knommu/platform/5249/config.c
+++ b/arch/m68knommu/platform/5249/config.c
@@ -12,10 +12,13 @@
12#include <linux/param.h> 12#include <linux/param.h>
13#include <linux/init.h> 13#include <linux/init.h>
14#include <linux/io.h> 14#include <linux/io.h>
15#include <linux/spi/spi.h>
16#include <linux/gpio.h>
15#include <asm/machdep.h> 17#include <asm/machdep.h>
16#include <asm/coldfire.h> 18#include <asm/coldfire.h>
17#include <asm/mcfsim.h> 19#include <asm/mcfsim.h>
18#include <asm/mcfuart.h> 20#include <asm/mcfuart.h>
21#include <asm/mcfqspi.h>
19 22
20/***************************************************************************/ 23/***************************************************************************/
21 24
@@ -37,8 +40,196 @@ static struct platform_device m5249_uart = {
37 .dev.platform_data = m5249_uart_platform, 40 .dev.platform_data = m5249_uart_platform,
38}; 41};
39 42
43#ifdef CONFIG_M5249C3
44
45static struct resource m5249_smc91x_resources[] = {
46 {
47 .start = 0xe0000300,
48 .end = 0xe0000300 + 0x100,
49 .flags = IORESOURCE_MEM,
50 },
51 {
52 .start = MCFINTC2_GPIOIRQ6,
53 .end = MCFINTC2_GPIOIRQ6,
54 .flags = IORESOURCE_IRQ,
55 },
56};
57
58static struct platform_device m5249_smc91x = {
59 .name = "smc91x",
60 .id = 0,
61 .num_resources = ARRAY_SIZE(m5249_smc91x_resources),
62 .resource = m5249_smc91x_resources,
63};
64
65#endif /* CONFIG_M5249C3 */
66
67#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
68static struct resource m5249_qspi_resources[] = {
69 {
70 .start = MCFQSPI_IOBASE,
71 .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
72 .flags = IORESOURCE_MEM,
73 },
74 {
75 .start = MCF_IRQ_QSPI,
76 .end = MCF_IRQ_QSPI,
77 .flags = IORESOURCE_IRQ,
78 },
79};
80
81#define MCFQSPI_CS0 29
82#define MCFQSPI_CS1 24
83#define MCFQSPI_CS2 21
84#define MCFQSPI_CS3 22
85
86static int m5249_cs_setup(struct mcfqspi_cs_control *cs_control)
87{
88 int status;
89
90 status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
91 if (status) {
92 pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
93 goto fail0;
94 }
95 status = gpio_direction_output(MCFQSPI_CS0, 1);
96 if (status) {
97 pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
98 goto fail1;
99 }
100
101 status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
102 if (status) {
103 pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
104 goto fail1;
105 }
106 status = gpio_direction_output(MCFQSPI_CS1, 1);
107 if (status) {
108 pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
109 goto fail2;
110 }
111
112 status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
113 if (status) {
114 pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
115 goto fail2;
116 }
117 status = gpio_direction_output(MCFQSPI_CS2, 1);
118 if (status) {
119 pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
120 goto fail3;
121 }
122
123 status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
124 if (status) {
125 pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
126 goto fail3;
127 }
128 status = gpio_direction_output(MCFQSPI_CS3, 1);
129 if (status) {
130 pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
131 goto fail4;
132 }
133
134 return 0;
135
136fail4:
137 gpio_free(MCFQSPI_CS3);
138fail3:
139 gpio_free(MCFQSPI_CS2);
140fail2:
141 gpio_free(MCFQSPI_CS1);
142fail1:
143 gpio_free(MCFQSPI_CS0);
144fail0:
145 return status;
146}
147
148static void m5249_cs_teardown(struct mcfqspi_cs_control *cs_control)
149{
150 gpio_free(MCFQSPI_CS3);
151 gpio_free(MCFQSPI_CS2);
152 gpio_free(MCFQSPI_CS1);
153 gpio_free(MCFQSPI_CS0);
154}
155
156static void m5249_cs_select(struct mcfqspi_cs_control *cs_control,
157 u8 chip_select, bool cs_high)
158{
159 switch (chip_select) {
160 case 0:
161 gpio_set_value(MCFQSPI_CS0, cs_high);
162 break;
163 case 1:
164 gpio_set_value(MCFQSPI_CS1, cs_high);
165 break;
166 case 2:
167 gpio_set_value(MCFQSPI_CS2, cs_high);
168 break;
169 case 3:
170 gpio_set_value(MCFQSPI_CS3, cs_high);
171 break;
172 }
173}
174
175static void m5249_cs_deselect(struct mcfqspi_cs_control *cs_control,
176 u8 chip_select, bool cs_high)
177{
178 switch (chip_select) {
179 case 0:
180 gpio_set_value(MCFQSPI_CS0, !cs_high);
181 break;
182 case 1:
183 gpio_set_value(MCFQSPI_CS1, !cs_high);
184 break;
185 case 2:
186 gpio_set_value(MCFQSPI_CS2, !cs_high);
187 break;
188 case 3:
189 gpio_set_value(MCFQSPI_CS3, !cs_high);
190 break;
191 }
192}
193
194static struct mcfqspi_cs_control m5249_cs_control = {
195 .setup = m5249_cs_setup,
196 .teardown = m5249_cs_teardown,
197 .select = m5249_cs_select,
198 .deselect = m5249_cs_deselect,
199};
200
201static struct mcfqspi_platform_data m5249_qspi_data = {
202 .bus_num = 0,
203 .num_chipselect = 4,
204 .cs_control = &m5249_cs_control,
205};
206
207static struct platform_device m5249_qspi = {
208 .name = "mcfqspi",
209 .id = 0,
210 .num_resources = ARRAY_SIZE(m5249_qspi_resources),
211 .resource = m5249_qspi_resources,
212 .dev.platform_data = &m5249_qspi_data,
213};
214
215static void __init m5249_qspi_init(void)
216{
217 /* QSPI irq setup */
218 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
219 MCF_MBAR + MCFSIM_QSPIICR);
220 mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
221}
222#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
223
224
40static struct platform_device *m5249_devices[] __initdata = { 225static struct platform_device *m5249_devices[] __initdata = {
41 &m5249_uart, 226 &m5249_uart,
227#ifdef CONFIG_M5249C3
228 &m5249_smc91x,
229#endif
230#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
231 &m5249_qspi,
232#endif
42}; 233};
43 234
44/***************************************************************************/ 235/***************************************************************************/
@@ -67,6 +258,24 @@ static void __init m5249_uarts_init(void)
67 258
68/***************************************************************************/ 259/***************************************************************************/
69 260
261#ifdef CONFIG_M5249C3
262
263static void __init m5249_smc91x_init(void)
264{
265 u32 gpio;
266
267 /* Set the GPIO line as interrupt source for smc91x device */
268 gpio = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE);
269 writel(gpio | 0x40, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE);
270
271 gpio = readl(MCF_MBAR2 + MCFSIM2_INTLEVEL5);
272 writel(gpio | 0x04000000, MCF_MBAR2 + MCFSIM2_INTLEVEL5);
273}
274
275#endif /* CONFIG_M5249C3 */
276
277/***************************************************************************/
278
70static void __init m5249_timers_init(void) 279static void __init m5249_timers_init(void)
71{ 280{
72 /* Timer1 is always used as system timer */ 281 /* Timer1 is always used as system timer */
@@ -100,6 +309,12 @@ void __init config_BSP(char *commandp, int size)
100 mach_reset = m5249_cpu_reset; 309 mach_reset = m5249_cpu_reset;
101 m5249_timers_init(); 310 m5249_timers_init();
102 m5249_uarts_init(); 311 m5249_uarts_init();
312#ifdef CONFIG_M5249C3
313 m5249_smc91x_init();
314#endif
315#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
316 m5249_qspi_init();
317#endif
103} 318}
104 319
105/***************************************************************************/ 320/***************************************************************************/