diff options
author | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 12:08:13 -0400 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 12:08:13 -0400 |
commit | f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch) | |
tree | c2c130a74be25b0b2dff992e1a195e2728bdaadd /arch/m68knommu/platform/5249 | |
parent | fd0961ff67727482bb20ca7e8ea97b83e9de2ddb (diff) | |
parent | 7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff) |
Merge branch 'master' into for-next
Diffstat (limited to 'arch/m68knommu/platform/5249')
-rw-r--r-- | arch/m68knommu/platform/5249/config.c | 215 |
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 | |||
45 | static 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 | |||
58 | static 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) | ||
68 | static 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 | |||
86 | static 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 | |||
136 | fail4: | ||
137 | gpio_free(MCFQSPI_CS3); | ||
138 | fail3: | ||
139 | gpio_free(MCFQSPI_CS2); | ||
140 | fail2: | ||
141 | gpio_free(MCFQSPI_CS1); | ||
142 | fail1: | ||
143 | gpio_free(MCFQSPI_CS0); | ||
144 | fail0: | ||
145 | return status; | ||
146 | } | ||
147 | |||
148 | static 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 | |||
156 | static 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 | |||
175 | static 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 | |||
194 | static 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 | |||
201 | static struct mcfqspi_platform_data m5249_qspi_data = { | ||
202 | .bus_num = 0, | ||
203 | .num_chipselect = 4, | ||
204 | .cs_control = &m5249_cs_control, | ||
205 | }; | ||
206 | |||
207 | static 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 | |||
215 | static 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 | |||
40 | static struct platform_device *m5249_devices[] __initdata = { | 225 | static 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 | |||
263 | static 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 | |||
70 | static void __init m5249_timers_init(void) | 279 | static 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 | /***************************************************************************/ |