1 /*
2 * arch/arm/mach-orion5x/kurobox_pro-setup.c
3 *
4 * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/pci.h>
15 #include <linux/irq.h>
16 #include <linux/delay.h>
17 #include <linux/mtd/physmap.h>
18 #include <linux/mtd/nand.h>
19 #include <linux/mv643xx_eth.h>
20 #include <linux/i2c.h>
21 #include <linux/serial_reg.h>
22 #include <linux/ata_platform.h>
23 #include <asm/mach-types.h>
24 #include <asm/gpio.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/pci.h>
27 #include <mach/orion5x.h>
28 #include <plat/orion_nand.h>
29 #include "common.h"
30 #include "mpp.h"
31
32 /*****************************************************************************
33 * KUROBOX-PRO Info
34 ****************************************************************************/
35
36 /*
37 * 256K NOR flash Device bus boot chip select
38 */
39
40 #define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000
41 #define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K
42
43 /*
44 * 256M NAND flash on Device bus chip select 1
45 */
46
47 #define KUROBOX_PRO_NAND_BASE 0xfc000000
48 #define KUROBOX_PRO_NAND_SIZE SZ_2M
49
50 /*****************************************************************************
51 * 256MB NAND Flash on Device bus CS0
52 ****************************************************************************/
53
54 static struct mtd_partition kurobox_pro_nand_parts[] = {
55 {
56 .name = "uImage",
57 .offset = 0,
58 .size = SZ_4M,
59 }, {
60 .name = "rootfs",
61 .offset = SZ_4M,
62 .size = SZ_64M,
63 }, {
64 .name = "extra",
65 .offset = SZ_4M + SZ_64M,
66 .size = SZ_256M - (SZ_4M + SZ_64M),
67 },
68 };
69
70 static struct resource kurobox_pro_nand_resource = {
71 .flags = IORESOURCE_MEM,
72 .start = KUROBOX_PRO_NAND_BASE,
73 .end = KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1,
74 };
75
76 static struct orion_nand_data kurobox_pro_nand_data = {
77 .parts = kurobox_pro_nand_parts,
78 .nr_parts = ARRAY_SIZE(kurobox_pro_nand_parts),
79 .cle = 0,
80 .ale = 1,
81 .width = 8,
82 };
83
84 static struct platform_device kurobox_pro_nand_flash = {
85 .name = "orion_nand",
86 .id = -1,
87 .dev = {
88 .platform_data = &kurobox_pro_nand_data,
89 },
90 .resource = &kurobox_pro_nand_resource,
91 .num_resources = 1,
92 };
93
94 /*****************************************************************************
95 * 256KB NOR Flash on BOOT Device
96 ****************************************************************************/
97
98 static struct physmap_flash_data kurobox_pro_nor_flash_data = {
99 .width = 1,
100 };
101
102 static struct resource kurobox_pro_nor_flash_resource = {
103 .flags = IORESOURCE_MEM,
104 .start = KUROBOX_PRO_NOR_BOOT_BASE,
105 .end = KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1,
106 };
107
108 static struct platform_device kurobox_pro_nor_flash = {
109 .name = "physmap-flash",
110 .id = 0,
111 .dev = {
112 .platform_data = &kurobox_pro_nor_flash_data,
113 },
114 .num_resources = 1,
115 .resource = &kurobox_pro_nor_flash_resource,
116 };
117
118 /*****************************************************************************
119 * PCI
120 ****************************************************************************/
121
kurobox_pro_pci_map_irq(struct pci_dev * dev,u8 slot,u8 pin)122 static int __init kurobox_pro_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
123 {
124 int irq;
125
126 /*
127 * Check for devices with hard-wired IRQs.
128 */
129 irq = orion5x_pci_map_irq(dev, slot, pin);
130 if (irq != -1)
131 return irq;
132
133 /*
134 * PCI isn't used on the Kuro
135 */
136 return -1;
137 }
138
139 static struct hw_pci kurobox_pro_pci __initdata = {
140 .nr_controllers = 2,
141 .swizzle = pci_std_swizzle,
142 .setup = orion5x_pci_sys_setup,
143 .scan = orion5x_pci_sys_scan_bus,
144 .map_irq = kurobox_pro_pci_map_irq,
145 };
146
kurobox_pro_pci_init(void)147 static int __init kurobox_pro_pci_init(void)
148 {
149 if (machine_is_kurobox_pro()) {
150 orion5x_pci_disable();
151 pci_common_init(&kurobox_pro_pci);
152 }
153
154 return 0;
155 }
156
157 subsys_initcall(kurobox_pro_pci_init);
158
159 /*****************************************************************************
160 * Ethernet
161 ****************************************************************************/
162
163 static struct mv643xx_eth_platform_data kurobox_pro_eth_data = {
164 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
165 };
166
167 /*****************************************************************************
168 * RTC 5C372a on I2C bus
169 ****************************************************************************/
170 static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = {
171 I2C_BOARD_INFO("rs5c372a", 0x32),
172 };
173
174 /*****************************************************************************
175 * SATA
176 ****************************************************************************/
177 static struct mv_sata_platform_data kurobox_pro_sata_data = {
178 .n_ports = 2,
179 };
180
181 /*****************************************************************************
182 * Kurobox Pro specific power off method via UART1-attached microcontroller
183 ****************************************************************************/
184
185 #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2))
186
kurobox_pro_miconread(unsigned char * buf,int count)187 static int kurobox_pro_miconread(unsigned char *buf, int count)
188 {
189 int i;
190 int timeout;
191
192 for (i = 0; i < count; i++) {
193 timeout = 10;
194
195 while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) {
196 if (--timeout == 0)
197 break;
198 udelay(1000);
199 }
200
201 if (timeout == 0)
202 break;
203 buf[i] = readl(UART1_REG(RX));
204 }
205
206 /* return read bytes */
207 return i;
208 }
209
kurobox_pro_miconwrite(const unsigned char * buf,int count)210 static int kurobox_pro_miconwrite(const unsigned char *buf, int count)
211 {
212 int i = 0;
213
214 while (count--) {
215 while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE))
216 barrier();
217 writel(buf[i++], UART1_REG(TX));
218 }
219
220 return 0;
221 }
222
kurobox_pro_miconsend(const unsigned char * data,int count)223 static int kurobox_pro_miconsend(const unsigned char *data, int count)
224 {
225 int i;
226 unsigned char checksum = 0;
227 unsigned char recv_buf[40];
228 unsigned char send_buf[40];
229 unsigned char correct_ack[3];
230 int retry = 2;
231
232 /* Generate checksum */
233 for (i = 0; i < count; i++)
234 checksum -= data[i];
235
236 do {
237 /* Send data */
238 kurobox_pro_miconwrite(data, count);
239
240 /* send checksum */
241 kurobox_pro_miconwrite(&checksum, 1);
242
243 if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) {
244 printk(KERN_ERR ">%s: receive failed.\n", __func__);
245
246 /* send preamble to clear the receive buffer */
247 memset(&send_buf, 0xff, sizeof(send_buf));
248 kurobox_pro_miconwrite(send_buf, sizeof(send_buf));
249
250 /* make dummy reads */
251 mdelay(100);
252 kurobox_pro_miconread(recv_buf, sizeof(recv_buf));
253 } else {
254 /* Generate expected ack */
255 correct_ack[0] = 0x01;
256 correct_ack[1] = data[1];
257 correct_ack[2] = 0x00;
258
259 /* checksum Check */
260 if ((recv_buf[0] + recv_buf[1] + recv_buf[2] +
261 recv_buf[3]) & 0xFF) {
262 printk(KERN_ERR ">%s: Checksum Error : "
263 "Received data[%02x, %02x, %02x, %02x]"
264 "\n", __func__, recv_buf[0],
265 recv_buf[1], recv_buf[2], recv_buf[3]);
266 } else {
267 /* Check Received Data */
268 if (correct_ack[0] == recv_buf[0] &&
269 correct_ack[1] == recv_buf[1] &&
270 correct_ack[2] == recv_buf[2]) {
271 /* Interval for next command */
272 mdelay(10);
273
274 /* Receive ACK */
275 return 0;
276 }
277 }
278 /* Received NAK or illegal Data */
279 printk(KERN_ERR ">%s: Error : NAK or Illegal Data "
280 "Received\n", __func__);
281 }
282 } while (retry--);
283
284 /* Interval for next command */
285 mdelay(10);
286
287 return -1;
288 }
289
kurobox_pro_power_off(void)290 static void kurobox_pro_power_off(void)
291 {
292 const unsigned char watchdogkill[] = {0x01, 0x35, 0x00};
293 const unsigned char shutdownwait[] = {0x00, 0x0c};
294 const unsigned char poweroff[] = {0x00, 0x06};
295 /* 38400 baud divisor */
296 const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400));
297
298 pr_info("%s: triggering power-off...\n", __func__);
299
300 /* hijack uart1 and reset into sane state (38400,8n1,even parity) */
301 writel(0x83, UART1_REG(LCR));
302 writel(divisor & 0xff, UART1_REG(DLL));
303 writel((divisor >> 8) & 0xff, UART1_REG(DLM));
304 writel(0x1b, UART1_REG(LCR));
305 writel(0x00, UART1_REG(IER));
306 writel(0x07, UART1_REG(FCR));
307 writel(0x00, UART1_REG(MCR));
308
309 /* Send the commands to shutdown the Kurobox Pro */
310 kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ;
311 kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ;
312 kurobox_pro_miconsend(poweroff, sizeof(poweroff));
313 }
314
315 /*****************************************************************************
316 * General Setup
317 ****************************************************************************/
318 static struct orion5x_mpp_mode kurobox_pro_mpp_modes[] __initdata = {
319 { 0, MPP_UNUSED },
320 { 1, MPP_UNUSED },
321 { 2, MPP_GPIO }, /* GPIO Micon */
322 { 3, MPP_GPIO }, /* GPIO Rtc */
323 { 4, MPP_UNUSED },
324 { 5, MPP_UNUSED },
325 { 6, MPP_NAND }, /* NAND Flash REn */
326 { 7, MPP_NAND }, /* NAND Flash WEn */
327 { 8, MPP_UNUSED },
328 { 9, MPP_UNUSED },
329 { 10, MPP_UNUSED },
330 { 11, MPP_UNUSED },
331 { 12, MPP_SATA_LED }, /* SATA 0 presence */
332 { 13, MPP_SATA_LED }, /* SATA 1 presence */
333 { 14, MPP_SATA_LED }, /* SATA 0 active */
334 { 15, MPP_SATA_LED }, /* SATA 1 active */
335 { 16, MPP_UART }, /* UART1 RXD */
336 { 17, MPP_UART }, /* UART1 TXD */
337 { 18, MPP_UART }, /* UART1 CTSn */
338 { 19, MPP_UART }, /* UART1 RTSn */
339 { -1 },
340 };
341
kurobox_pro_init(void)342 static void __init kurobox_pro_init(void)
343 {
344 /*
345 * Setup basic Orion functions. Need to be called early.
346 */
347 orion5x_init();
348
349 orion5x_mpp_conf(kurobox_pro_mpp_modes);
350
351 /*
352 * Configure peripherals.
353 */
354 orion5x_ehci0_init();
355 orion5x_ehci1_init();
356 orion5x_eth_init(&kurobox_pro_eth_data);
357 orion5x_i2c_init();
358 orion5x_sata_init(&kurobox_pro_sata_data);
359 orion5x_uart0_init();
360 orion5x_uart1_init();
361 orion5x_xor_init();
362
363 orion5x_setup_dev_boot_win(KUROBOX_PRO_NOR_BOOT_BASE,
364 KUROBOX_PRO_NOR_BOOT_SIZE);
365 platform_device_register(&kurobox_pro_nor_flash);
366
367 if (machine_is_kurobox_pro()) {
368 orion5x_setup_dev0_win(KUROBOX_PRO_NAND_BASE,
369 KUROBOX_PRO_NAND_SIZE);
370 platform_device_register(&kurobox_pro_nand_flash);
371 }
372
373 i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1);
374
375 /* register Kurobox Pro specific power-off method */
376 pm_power_off = kurobox_pro_power_off;
377 }
378
379 #ifdef CONFIG_MACH_KUROBOX_PRO
380 MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro")
381 /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
382 .phys_io = ORION5X_REGS_PHYS_BASE,
383 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
384 .boot_params = 0x00000100,
385 .init_machine = kurobox_pro_init,
386 .map_io = orion5x_map_io,
387 .init_irq = orion5x_init_irq,
388 .timer = &orion5x_timer,
389 .fixup = tag_fixup_mem32,
390 MACHINE_END
391 #endif
392
393 #ifdef CONFIG_MACH_LINKSTATION_PRO
394 MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live")
395 /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
396 .phys_io = ORION5X_REGS_PHYS_BASE,
397 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
398 .boot_params = 0x00000100,
399 .init_machine = kurobox_pro_init,
400 .map_io = orion5x_map_io,
401 .init_irq = orion5x_init_irq,
402 .timer = &orion5x_timer,
403 .fixup = tag_fixup_mem32,
404 MACHINE_END
405 #endif
406