ARM: davinci: remove deprecated IRQF_DISABLED
[deliverable/linux.git] / arch / arm / mach-davinci / board-omapl138-hawk.c
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1/*
2 * Hawkboard.org based on TI's OMAP-L138 Platform
3 *
4 * Initial code: Syed Mohammed Khasim
5 *
6 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of
10 * any kind, whether express or implied.
11 */
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/console.h>
15#include <linux/gpio.h>
16
17#include <asm/mach-types.h>
18#include <asm/mach/arch.h>
19
20#include <mach/cp_intc.h>
21#include <mach/da8xx.h>
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22#include <mach/mux.h>
23
f6f97588 24#define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
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25#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
26#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
bb59b7fd 27
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28#define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
29#define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
30
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31static short omapl138_hawk_mii_pins[] __initdata = {
32 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
33 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
34 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
35 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
36 DA850_MDIO_D,
37 -1
38};
39
40static __init void omapl138_hawk_config_emac(void)
41{
42 void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
43 int ret;
44 u32 val;
45 struct davinci_soc_info *soc_info = &davinci_soc_info;
46
47 val = __raw_readl(cfgchip3);
48 val &= ~BIT(8);
49 ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
50 if (ret) {
6c7c23cc 51 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
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52 return;
53 }
54
55 /* configure the CFGCHIP3 register for MII */
56 __raw_writel(val, cfgchip3);
57 pr_info("EMAC: MII PHY configured\n");
58
59 soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
60
61 ret = da8xx_register_emac();
62 if (ret)
6c7c23cc 63 pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
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64}
65
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66/*
67 * The following EDMA channels/slots are not being used by drivers (for
68 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
69 * hence they are being reserved for codecs on the DSP side.
70 */
71static const s16 da850_dma0_rsv_chans[][2] = {
72 /* (offset, number) */
73 { 8, 6},
74 {24, 4},
75 {30, 2},
76 {-1, -1}
77};
78
79static const s16 da850_dma0_rsv_slots[][2] = {
80 /* (offset, number) */
81 { 8, 6},
82 {24, 4},
83 {30, 50},
84 {-1, -1}
85};
86
87static const s16 da850_dma1_rsv_chans[][2] = {
88 /* (offset, number) */
89 { 0, 28},
90 {30, 2},
91 {-1, -1}
92};
93
94static const s16 da850_dma1_rsv_slots[][2] = {
95 /* (offset, number) */
96 { 0, 28},
97 {30, 90},
98 {-1, -1}
99};
100
101static struct edma_rsv_info da850_edma_cc0_rsv = {
102 .rsv_chans = da850_dma0_rsv_chans,
103 .rsv_slots = da850_dma0_rsv_slots,
104};
105
106static struct edma_rsv_info da850_edma_cc1_rsv = {
107 .rsv_chans = da850_dma1_rsv_chans,
108 .rsv_slots = da850_dma1_rsv_slots,
109};
110
111static struct edma_rsv_info *da850_edma_rsv[2] = {
112 &da850_edma_cc0_rsv,
113 &da850_edma_cc1_rsv,
114};
6c18c91b 115
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116static const short hawk_mmcsd0_pins[] = {
117 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
118 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
119 DA850_GPIO3_12, DA850_GPIO3_13,
120 -1
121};
122
123static int da850_hawk_mmc_get_ro(int index)
124{
125 return gpio_get_value(DA850_HAWK_MMCSD_WP_PIN);
126}
127
128static int da850_hawk_mmc_get_cd(int index)
129{
130 return !gpio_get_value(DA850_HAWK_MMCSD_CD_PIN);
131}
132
133static struct davinci_mmc_config da850_mmc_config = {
134 .get_ro = da850_hawk_mmc_get_ro,
135 .get_cd = da850_hawk_mmc_get_cd,
136 .wires = 4,
137 .max_freq = 50000000,
138 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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139};
140
141static __init void omapl138_hawk_mmc_init(void)
142{
143 int ret;
144
145 ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
146 if (ret) {
6c7c23cc 147 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
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148 return;
149 }
150
151 ret = gpio_request_one(DA850_HAWK_MMCSD_CD_PIN,
152 GPIOF_DIR_IN, "MMC CD");
153 if (ret < 0) {
6c7c23cc 154 pr_warn("%s: can not open GPIO %d\n",
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155 __func__, DA850_HAWK_MMCSD_CD_PIN);
156 return;
157 }
158
159 ret = gpio_request_one(DA850_HAWK_MMCSD_WP_PIN,
160 GPIOF_DIR_IN, "MMC WP");
161 if (ret < 0) {
6c7c23cc 162 pr_warn("%s: can not open GPIO %d\n",
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163 __func__, DA850_HAWK_MMCSD_WP_PIN);
164 goto mmc_setup_wp_fail;
165 }
166
167 ret = da8xx_register_mmcsd0(&da850_mmc_config);
168 if (ret) {
6c7c23cc 169 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
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170 goto mmc_setup_mmcsd_fail;
171 }
172
173 return;
174
175mmc_setup_mmcsd_fail:
176 gpio_free(DA850_HAWK_MMCSD_WP_PIN);
177mmc_setup_wp_fail:
178 gpio_free(DA850_HAWK_MMCSD_CD_PIN);
179}
180
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181static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id);
182static da8xx_ocic_handler_t hawk_usb_ocic_handler;
183
184static const short da850_hawk_usb11_pins[] = {
185 DA850_GPIO2_4, DA850_GPIO6_13,
186 -1
187};
188
189static int hawk_usb_set_power(unsigned port, int on)
190{
191 gpio_set_value(DA850_USB1_VBUS_PIN, on);
192 return 0;
193}
194
195static int hawk_usb_get_power(unsigned port)
196{
197 return gpio_get_value(DA850_USB1_VBUS_PIN);
198}
199
200static int hawk_usb_get_oci(unsigned port)
201{
202 return !gpio_get_value(DA850_USB1_OC_PIN);
203}
204
205static int hawk_usb_ocic_notify(da8xx_ocic_handler_t handler)
206{
207 int irq = gpio_to_irq(DA850_USB1_OC_PIN);
208 int error = 0;
209
210 if (handler != NULL) {
211 hawk_usb_ocic_handler = handler;
212
213 error = request_irq(irq, omapl138_hawk_usb_ocic_irq,
1091a654 214 IRQF_TRIGGER_RISING |
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215 IRQF_TRIGGER_FALLING,
216 "OHCI over-current indicator", NULL);
217 if (error)
218 pr_err("%s: could not request IRQ to watch "
219 "over-current indicator changes\n", __func__);
220 } else {
221 free_irq(irq, NULL);
222 }
223 return error;
224}
225
226static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
227 .set_power = hawk_usb_set_power,
228 .get_power = hawk_usb_get_power,
229 .get_oci = hawk_usb_get_oci,
230 .ocic_notify = hawk_usb_ocic_notify,
231 /* TPS2087 switch @ 5V */
232 .potpgt = (3 + 1) / 2, /* 3 ms max */
233};
234
235static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id)
236{
237 hawk_usb_ocic_handler(&omapl138_hawk_usb11_pdata, 1);
238 return IRQ_HANDLED;
239}
240
241static __init void omapl138_hawk_usb_init(void)
242{
243 int ret;
244 u32 cfgchip2;
245
246 ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
247 if (ret) {
6c7c23cc 248 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
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249 return;
250 }
251
252 /* Setup the Ref. clock frequency for the HAWK at 24 MHz. */
253
254 cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
255 cfgchip2 &= ~CFGCHIP2_REFFREQ;
256 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
257 __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
258
259 ret = gpio_request_one(DA850_USB1_VBUS_PIN,
260 GPIOF_DIR_OUT, "USB1 VBUS");
261 if (ret < 0) {
262 pr_err("%s: failed to request GPIO for USB 1.1 port "
263 "power control: %d\n", __func__, ret);
264 return;
265 }
266
267 ret = gpio_request_one(DA850_USB1_OC_PIN,
268 GPIOF_DIR_IN, "USB1 OC");
269 if (ret < 0) {
270 pr_err("%s: failed to request GPIO for USB 1.1 port "
271 "over-current indicator: %d\n", __func__, ret);
272 goto usb11_setup_oc_fail;
273 }
274
275 ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
276 if (ret) {
6c7c23cc 277 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
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278 goto usb11_setup_fail;
279 }
280
281 return;
282
283usb11_setup_fail:
284 gpio_free(DA850_USB1_OC_PIN);
285usb11_setup_oc_fail:
286 gpio_free(DA850_USB1_VBUS_PIN);
287}
288
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289static __init void omapl138_hawk_init(void)
290{
291 int ret;
292
fcf7157b 293 davinci_serial_init(da8xx_serial_device);
6c18c91b 294
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295 omapl138_hawk_config_emac();
296
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297 ret = da850_register_edma(da850_edma_rsv);
298 if (ret)
6c7c23cc 299 pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
5f72f380 300
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301 omapl138_hawk_mmc_init();
302
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303 omapl138_hawk_usb_init();
304
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305 ret = da8xx_register_watchdog();
306 if (ret)
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307 pr_warn("%s: watchdog registration failed: %d\n",
308 __func__, ret);
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309
310 ret = da8xx_register_rproc();
311 if (ret)
312 pr_warn("%s: dsp/rproc registration failed: %d\n",
313 __func__, ret);
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314}
315
316#ifdef CONFIG_SERIAL_8250_CONSOLE
317static int __init omapl138_hawk_console_init(void)
318{
319 if (!machine_is_omapl138_hawkboard())
320 return 0;
321
322 return add_preferred_console("ttyS", 2, "115200");
323}
324console_initcall(omapl138_hawk_console_init);
325#endif
326
327static void __init omapl138_hawk_map_io(void)
328{
329 da850_init();
330}
331
332MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
e7e56014 333 .atag_offset = 0x100,
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334 .map_io = omapl138_hawk_map_io,
335 .init_irq = cp_intc_init,
6bb27d73 336 .init_time = davinci_timer_init,
6c18c91b 337 .init_machine = omapl138_hawk_init,
3aa3e840 338 .init_late = davinci_init_late,
f68deabf 339 .dma_zone_size = SZ_128M,
c6121ddd 340 .restart = da8xx_restart,
54288134 341 .reserve = da8xx_rproc_reserve_cma,
6c18c91b 342MACHINE_END
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