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12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/console.h>
15#include <linux/interrupt.h>
16#include <linux/gpio.h>
17#include <linux/gpio/machine.h>
18#include <linux/platform_data/gpio-davinci.h>
19#include <linux/regulator/machine.h>
20
21#include <asm/mach-types.h>
22#include <asm/mach/arch.h>
23
24#include <mach/common.h>
25#include "cp_intc.h"
26#include <mach/da8xx.h>
27#include <mach/mux.h>
28
29#define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
30
31#define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
32#define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
33
34static short omapl138_hawk_mii_pins[] __initdata = {
35 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
36 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
37 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
38 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
39 DA850_MDIO_D,
40 -1
41};
42
43static __init void omapl138_hawk_config_emac(void)
44{
45 void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
46 int ret;
47 u32 val;
48 struct davinci_soc_info *soc_info = &davinci_soc_info;
49
50 val = __raw_readl(cfgchip3);
51 val &= ~BIT(8);
52 ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
53 if (ret) {
54 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
55 return;
56 }
57
58
59 __raw_writel(val, cfgchip3);
60 pr_info("EMAC: MII PHY configured\n");
61
62 soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
63
64 ret = da8xx_register_emac();
65 if (ret)
66 pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
67}
68
69
70
71
72
73
74static const s16 da850_dma0_rsv_chans[][2] = {
75
76 { 8, 6},
77 {24, 4},
78 {30, 2},
79 {-1, -1}
80};
81
82static const s16 da850_dma0_rsv_slots[][2] = {
83
84 { 8, 6},
85 {24, 4},
86 {30, 50},
87 {-1, -1}
88};
89
90static const s16 da850_dma1_rsv_chans[][2] = {
91
92 { 0, 28},
93 {30, 2},
94 {-1, -1}
95};
96
97static const s16 da850_dma1_rsv_slots[][2] = {
98
99 { 0, 28},
100 {30, 90},
101 {-1, -1}
102};
103
104static struct edma_rsv_info da850_edma_cc0_rsv = {
105 .rsv_chans = da850_dma0_rsv_chans,
106 .rsv_slots = da850_dma0_rsv_slots,
107};
108
109static struct edma_rsv_info da850_edma_cc1_rsv = {
110 .rsv_chans = da850_dma1_rsv_chans,
111 .rsv_slots = da850_dma1_rsv_slots,
112};
113
114static struct edma_rsv_info *da850_edma_rsv[2] = {
115 &da850_edma_cc0_rsv,
116 &da850_edma_cc1_rsv,
117};
118
119static const short hawk_mmcsd0_pins[] = {
120 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
121 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
122 DA850_GPIO3_12, DA850_GPIO3_13,
123 -1
124};
125
126static struct gpiod_lookup_table mmc_gpios_table = {
127 .dev_id = "da830-mmc.0",
128 .table = {
129
130 GPIO_LOOKUP("davinci_gpio.0", 28, "cd", GPIO_ACTIVE_LOW),
131 GPIO_LOOKUP("davinci_gpio.0", 29, "wp", GPIO_ACTIVE_LOW),
132 },
133};
134
135static struct davinci_mmc_config da850_mmc_config = {
136 .wires = 4,
137 .max_freq = 50000000,
138 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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) {
147 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
148 return;
149 }
150
151 gpiod_add_lookup_table(&mmc_gpios_table);
152
153 ret = da8xx_register_mmcsd0(&da850_mmc_config);
154 if (ret) {
155 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
156 goto mmc_setup_mmcsd_fail;
157 }
158
159 return;
160
161mmc_setup_mmcsd_fail:
162 gpiod_remove_lookup_table(&mmc_gpios_table);
163}
164
165static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id);
166static da8xx_ocic_handler_t hawk_usb_ocic_handler;
167
168static const short da850_hawk_usb11_pins[] = {
169 DA850_GPIO2_4, DA850_GPIO6_13,
170 -1
171};
172
173static int hawk_usb_set_power(unsigned port, int on)
174{
175 gpio_set_value(DA850_USB1_VBUS_PIN, on);
176 return 0;
177}
178
179static int hawk_usb_get_power(unsigned port)
180{
181 return gpio_get_value(DA850_USB1_VBUS_PIN);
182}
183
184static int hawk_usb_get_oci(unsigned port)
185{
186 return !gpio_get_value(DA850_USB1_OC_PIN);
187}
188
189static int hawk_usb_ocic_notify(da8xx_ocic_handler_t handler)
190{
191 int irq = gpio_to_irq(DA850_USB1_OC_PIN);
192 int error = 0;
193
194 if (handler != NULL) {
195 hawk_usb_ocic_handler = handler;
196
197 error = request_irq(irq, omapl138_hawk_usb_ocic_irq,
198 IRQF_TRIGGER_RISING |
199 IRQF_TRIGGER_FALLING,
200 "OHCI over-current indicator", NULL);
201 if (error)
202 pr_err("%s: could not request IRQ to watch "
203 "over-current indicator changes\n", __func__);
204 } else {
205 free_irq(irq, NULL);
206 }
207 return error;
208}
209
210static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
211 .set_power = hawk_usb_set_power,
212 .get_power = hawk_usb_get_power,
213 .get_oci = hawk_usb_get_oci,
214 .ocic_notify = hawk_usb_ocic_notify,
215
216 .potpgt = (3 + 1) / 2,
217};
218
219static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id)
220{
221 hawk_usb_ocic_handler(&omapl138_hawk_usb11_pdata, 1);
222 return IRQ_HANDLED;
223}
224
225static __init void omapl138_hawk_usb_init(void)
226{
227 int ret;
228
229 ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
230 if (ret) {
231 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
232 return;
233 }
234
235 ret = da8xx_register_usb20_phy_clk(false);
236 if (ret)
237 pr_warn("%s: USB 2.0 PHY CLK registration failed: %d\n",
238 __func__, ret);
239
240 ret = da8xx_register_usb11_phy_clk(false);
241 if (ret)
242 pr_warn("%s: USB 1.1 PHY CLK registration failed: %d\n",
243 __func__, ret);
244
245 ret = da8xx_register_usb_phy();
246 if (ret)
247 pr_warn("%s: USB PHY registration failed: %d\n",
248 __func__, ret);
249
250 ret = gpio_request_one(DA850_USB1_VBUS_PIN,
251 GPIOF_DIR_OUT, "USB1 VBUS");
252 if (ret < 0) {
253 pr_err("%s: failed to request GPIO for USB 1.1 port "
254 "power control: %d\n", __func__, ret);
255 return;
256 }
257
258 ret = gpio_request_one(DA850_USB1_OC_PIN,
259 GPIOF_DIR_IN, "USB1 OC");
260 if (ret < 0) {
261 pr_err("%s: failed to request GPIO for USB 1.1 port "
262 "over-current indicator: %d\n", __func__, ret);
263 goto usb11_setup_oc_fail;
264 }
265
266 ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
267 if (ret) {
268 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
269 goto usb11_setup_fail;
270 }
271
272 return;
273
274usb11_setup_fail:
275 gpio_free(DA850_USB1_OC_PIN);
276usb11_setup_oc_fail:
277 gpio_free(DA850_USB1_VBUS_PIN);
278}
279
280static __init void omapl138_hawk_init(void)
281{
282 int ret;
283
284 ret = da8xx_register_cfgchip();
285 if (ret)
286 pr_warn("%s: CFGCHIP registration failed: %d\n", __func__, ret);
287
288 ret = da850_register_gpio();
289 if (ret)
290 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
291
292 davinci_serial_init(da8xx_serial_device);
293
294 omapl138_hawk_config_emac();
295
296 ret = da850_register_edma(da850_edma_rsv);
297 if (ret)
298 pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
299
300 omapl138_hawk_mmc_init();
301
302 omapl138_hawk_usb_init();
303
304 ret = da8xx_register_watchdog();
305 if (ret)
306 pr_warn("%s: watchdog registration failed: %d\n",
307 __func__, ret);
308
309 ret = da8xx_register_rproc();
310 if (ret)
311 pr_warn("%s: dsp/rproc registration failed: %d\n",
312 __func__, ret);
313
314 regulator_has_full_constraints();
315}
316
317#ifdef CONFIG_SERIAL_8250_CONSOLE
318static int __init omapl138_hawk_console_init(void)
319{
320 if (!machine_is_omapl138_hawkboard())
321 return 0;
322
323 return add_preferred_console("ttyS", 2, "115200");
324}
325console_initcall(omapl138_hawk_console_init);
326#endif
327
328static void __init omapl138_hawk_map_io(void)
329{
330 da850_init();
331}
332
333MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
334 .atag_offset = 0x100,
335 .map_io = omapl138_hawk_map_io,
336 .init_irq = cp_intc_init,
337 .init_time = davinci_timer_init,
338 .init_machine = omapl138_hawk_init,
339 .init_late = davinci_init_late,
340 .dma_zone_size = SZ_128M,
341 .restart = da8xx_restart,
342 .reserve = da8xx_rproc_reserve_cma,
343MACHINE_END
344
