summaryrefslogtreecommitdiff
path: root/arch/arm/mach-orion5x/kurobox_pro-setup.c
blob: 4be9aa08de6996372391516c857e17802f0bf5f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
/*
 * arch/arm/mach-orion5x/kurobox_pro-setup.c
 *
 * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/nand.h>
#include <linux/mv643xx_eth.h>
#include <linux/i2c.h>
#include <linux/serial_reg.h>
#include <linux/ata_platform.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include <plat/orion_nand.h>
#include "common.h"
#include "mpp.h"

/*****************************************************************************
 * KUROBOX-PRO Info
 ****************************************************************************/

/*
 * 256K NOR flash Device bus boot chip select
 */

#define KUROBOX_PRO_NOR_BOOT_BASE	0xf4000000
#define KUROBOX_PRO_NOR_BOOT_SIZE	SZ_256K

/*
 * 256M NAND flash on Device bus chip select 1
 */

#define KUROBOX_PRO_NAND_BASE		0xfc000000
#define KUROBOX_PRO_NAND_SIZE		SZ_2M

/*****************************************************************************
 * 256MB NAND Flash on Device bus CS0
 ****************************************************************************/

static struct mtd_partition kurobox_pro_nand_parts[] = {
	{
		.name	= "uImage",
		.offset	= 0,
		.size	= SZ_4M,
	}, {
		.name	= "rootfs",
		.offset	= SZ_4M,
		.size	= SZ_64M,
	}, {
		.name	= "extra",
		.offset	= SZ_4M + SZ_64M,
		.size	= SZ_256M - (SZ_4M + SZ_64M),
	},
};

static struct resource kurobox_pro_nand_resource = {
	.flags		= IORESOURCE_MEM,
	.start		= KUROBOX_PRO_NAND_BASE,
	.end		= KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1,
};

static struct orion_nand_data kurobox_pro_nand_data = {
	.parts		= kurobox_pro_nand_parts,
	.nr_parts	= ARRAY_SIZE(kurobox_pro_nand_parts),
	.cle		= 0,
	.ale		= 1,
	.width		= 8,
};

static struct platform_device kurobox_pro_nand_flash = {
	.name		= "orion_nand",
	.id		= -1,
	.dev		= {
		.platform_data	= &kurobox_pro_nand_data,
	},
	.resource	= &kurobox_pro_nand_resource,
	.num_resources	= 1,
};

/*****************************************************************************
 * 256KB NOR Flash on BOOT Device
 ****************************************************************************/

static struct physmap_flash_data kurobox_pro_nor_flash_data = {
	.width		= 1,
};

static struct resource kurobox_pro_nor_flash_resource = {
	.flags			= IORESOURCE_MEM,
	.start			= KUROBOX_PRO_NOR_BOOT_BASE,
	.end			= KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1,
};

static struct platform_device kurobox_pro_nor_flash = {
	.name			= "physmap-flash",
	.id			= 0,
	.dev		= {
		.platform_data	= &kurobox_pro_nor_flash_data,
	},
	.num_resources		= 1,
	.resource		= &kurobox_pro_nor_flash_resource,
};

/*****************************************************************************
 * PCI
 ****************************************************************************/

static int __init kurobox_pro_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	int irq;

	/*
	 * Check for devices with hard-wired IRQs.
	 */
	irq = orion5x_pci_map_irq(dev, slot, pin);
	if (irq != -1)
		return irq;

	/*
	 * PCI isn't used on the Kuro
	 */
	return -1;
}

static struct hw_pci kurobox_pro_pci __initdata = {
	.nr_controllers	= 2,
	.swizzle	= pci_std_swizzle,
	.setup		= orion5x_pci_sys_setup,
	.scan		= orion5x_pci_sys_scan_bus,
	.map_irq	= kurobox_pro_pci_map_irq,
};

static int __init kurobox_pro_pci_init(void)
{
	if (machine_is_kurobox_pro()) {
		orion5x_pci_disable();
		pci_common_init(&kurobox_pro_pci);
	}

	return 0;
}

subsys_initcall(kurobox_pro_pci_init);

/*****************************************************************************
 * Ethernet
 ****************************************************************************/

static struct mv643xx_eth_platform_data kurobox_pro_eth_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
};

/*****************************************************************************
 * RTC 5C372a on I2C bus
 ****************************************************************************/
static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = {
	I2C_BOARD_INFO("rs5c372a", 0x32),
};

/*****************************************************************************
 * SATA
 ****************************************************************************/
static struct mv_sata_platform_data kurobox_pro_sata_data = {
	.n_ports	= 2,
};

/*****************************************************************************
 * Kurobox Pro specific power off method via UART1-attached microcontroller
 ****************************************************************************/

#define UART1_REG(x)	(UART1_VIRT_BASE + ((UART_##x) << 2))

static int kurobox_pro_miconread(unsigned char *buf, int count)
{
	int i;
	int timeout;

	for (i = 0; i < count; i++) {
		timeout = 10;

		while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) {
			if (--timeout == 0)
				break;
			udelay(1000);
		}

		if (timeout == 0)
			break;
		buf[i] = readl(UART1_REG(RX));
	}

	/* return read bytes */
	return i;
}

static int kurobox_pro_miconwrite(const unsigned char *buf, int count)
{
	int i = 0;

	while (count--) {
		while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE))
			barrier();
		writel(buf[i++], UART1_REG(TX));
	}

	return 0;
}

static int kurobox_pro_miconsend(const unsigned char *data, int count)
{
	int i;
	unsigned char checksum = 0;
	unsigned char recv_buf[40];
	unsigned char send_buf[40];
	unsigned char correct_ack[3];
	int retry = 2;

	/* Generate checksum */
	for (i = 0; i < count; i++)
		checksum -=  data[i];

	do {
		/* Send data */
		kurobox_pro_miconwrite(data, count);

		/* send checksum */
		kurobox_pro_miconwrite(&checksum, 1);

		if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) {
			printk(KERN_ERR ">%s: receive failed.\n", __func__);

			/* send preamble to clear the receive buffer */
			memset(&send_buf, 0xff, sizeof(send_buf));
			kurobox_pro_miconwrite(send_buf, sizeof(send_buf));

			/* make dummy reads */
			mdelay(100);
			kurobox_pro_miconread(recv_buf, sizeof(recv_buf));
		} else {
			/* Generate expected ack */
			correct_ack[0] = 0x01;
			correct_ack[1] = data[1];
			correct_ack[2] = 0x00;

			/* checksum Check */
			if ((recv_buf[0] + recv_buf[1] + recv_buf[2] +
			     recv_buf[3]) & 0xFF) {
				printk(KERN_ERR ">%s: Checksum Error : "
					"Received data[%02x, %02x, %02x, %02x]"
					"\n", __func__, recv_buf[0],
					recv_buf[1], recv_buf[2], recv_buf[3]);
			} else {
				/* Check Received Data */
				if (correct_ack[0] == recv_buf[0] &&
				    correct_ack[1] == recv_buf[1] &&
				    correct_ack[2] == recv_buf[2]) {
					/* Interval for next command */
					mdelay(10);

					/* Receive ACK */
					return 0;
				}
			}
			/* Received NAK or illegal Data */
			printk(KERN_ERR ">%s: Error : NAK or Illegal Data "
					"Received\n", __func__);
		}
	} while (retry--);

	/* Interval for next command */
	mdelay(10);

	return -1;
}

static void kurobox_pro_power_off(void)
{
	const unsigned char watchdogkill[]	= {0x01, 0x35, 0x00};
	const unsigned char shutdownwait[]	= {0x00, 0x0c};
	const unsigned char poweroff[]		= {0x00, 0x06};
	/* 38400 baud divisor */
	const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400));

	pr_info("%s: triggering power-off...\n", __func__);

	/* hijack uart1 and reset into sane state (38400,8n1,even parity) */
	writel(0x83, UART1_REG(LCR));
	writel(divisor & 0xff, UART1_REG(DLL));
	writel((divisor >> 8) & 0xff, UART1_REG(DLM));
	writel(0x1b, UART1_REG(LCR));
	writel(0x00, UART1_REG(IER));
	writel(0x07, UART1_REG(FCR));
	writel(0x00, UART1_REG(MCR));

	/* Send the commands to shutdown the Kurobox Pro */
	kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ;
	kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ;
	kurobox_pro_miconsend(poweroff, sizeof(poweroff));
}

/*****************************************************************************
 * General Setup
 ****************************************************************************/
static struct orion5x_mpp_mode kurobox_pro_mpp_modes[] __initdata = {
	{  0, MPP_UNUSED },
	{  1, MPP_UNUSED },
	{  2, MPP_GPIO },		/* GPIO Micon */
	{  3, MPP_GPIO },		/* GPIO Rtc */
	{  4, MPP_UNUSED },
	{  5, MPP_UNUSED },
	{  6, MPP_NAND },		/* NAND Flash REn */
	{  7, MPP_NAND },		/* NAND Flash WEn */
	{  8, MPP_UNUSED },
	{  9, MPP_UNUSED },
	{ 10, MPP_UNUSED },
	{ 11, MPP_UNUSED },
	{ 12, MPP_SATA_LED },		/* SATA 0 presence */
	{ 13, MPP_SATA_LED },		/* SATA 1 presence */
	{ 14, MPP_SATA_LED },		/* SATA 0 active */
	{ 15, MPP_SATA_LED },		/* SATA 1 active */
	{ 16, MPP_UART },		/* UART1 RXD */
	{ 17, MPP_UART },		/* UART1 TXD */
	{ 18, MPP_UART },		/* UART1 CTSn */
	{ 19, MPP_UART },		/* UART1 RTSn */
	{ -1 },
};

static void __init kurobox_pro_init(void)
{
	/*
	 * Setup basic Orion functions. Need to be called early.
	 */
	orion5x_init();

	orion5x_mpp_conf(kurobox_pro_mpp_modes);

	/*
	 * Configure peripherals.
	 */
	orion5x_ehci0_init();
	orion5x_ehci1_init();
	orion5x_eth_init(&kurobox_pro_eth_data);
	orion5x_i2c_init();
	orion5x_sata_init(&kurobox_pro_sata_data);
	orion5x_uart0_init();
	orion5x_uart1_init();
	orion5x_xor_init();

	orion5x_setup_dev_boot_win(KUROBOX_PRO_NOR_BOOT_BASE,
				   KUROBOX_PRO_NOR_BOOT_SIZE);
	platform_device_register(&kurobox_pro_nor_flash);

	if (machine_is_kurobox_pro()) {
		orion5x_setup_dev0_win(KUROBOX_PRO_NAND_BASE,
				       KUROBOX_PRO_NAND_SIZE);
		platform_device_register(&kurobox_pro_nand_flash);
	}

	i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1);

	/* register Kurobox Pro specific power-off method */
	pm_power_off = kurobox_pro_power_off;
}

#ifdef CONFIG_MACH_KUROBOX_PRO
MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro")
	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
	.boot_params	= 0x00000100,
	.init_machine	= kurobox_pro_init,
	.map_io		= orion5x_map_io,
	.init_irq	= orion5x_init_irq,
	.timer		= &orion5x_timer,
	.fixup		= tag_fixup_mem32,
MACHINE_END
#endif

#ifdef CONFIG_MACH_LINKSTATION_PRO
MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live")
	/* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
	.boot_params	= 0x00000100,
	.init_machine	= kurobox_pro_init,
	.map_io		= orion5x_map_io,
	.init_irq	= orion5x_init_irq,
	.timer		= &orion5x_timer,
	.fixup		= tag_fixup_mem32,
MACHINE_END
#endif