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1e780453 | 1 | /* |
9dd0b194 | 2 | * arch/arm/mach-orion5x/kurobox_pro-setup.c |
1e780453 RS |
3 | * |
4 | * Maintainer: Ronen Shitrit <rshitrit@marvell.com> | |
5 | * | |
159ffb3a LB |
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 | |
1e780453 RS |
8 | * warranty of any kind, whether express or implied. |
9 | */ | |
2f8163ba | 10 | #include <linux/gpio.h> |
1e780453 RS |
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> | |
a0087f2f | 16 | #include <linux/delay.h> |
1e780453 RS |
17 | #include <linux/mtd/physmap.h> |
18 | #include <linux/mtd/nand.h> | |
19 | #include <linux/mv643xx_eth.h> | |
20 | #include <linux/i2c.h> | |
a0087f2f | 21 | #include <linux/serial_reg.h> |
3b277c29 | 22 | #include <linux/ata_platform.h> |
1e780453 | 23 | #include <asm/mach-types.h> |
1e780453 RS |
24 | #include <asm/mach/arch.h> |
25 | #include <asm/mach/pci.h> | |
a09e64fb | 26 | #include <mach/orion5x.h> |
c02cecb9 | 27 | #include <linux/platform_data/mtd-orion_nand.h> |
1e780453 | 28 | #include "common.h" |
19cfd5c0 | 29 | #include "mpp.h" |
1e780453 RS |
30 | |
31 | /***************************************************************************** | |
32 | * KUROBOX-PRO Info | |
33 | ****************************************************************************/ | |
34 | ||
35 | /* | |
36 | * 256K NOR flash Device bus boot chip select | |
37 | */ | |
38 | ||
39 | #define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000 | |
40 | #define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K | |
41 | ||
42 | /* | |
43 | * 256M NAND flash on Device bus chip select 1 | |
44 | */ | |
45 | ||
46 | #define KUROBOX_PRO_NAND_BASE 0xfc000000 | |
47 | #define KUROBOX_PRO_NAND_SIZE SZ_2M | |
48 | ||
49 | /***************************************************************************** | |
50 | * 256MB NAND Flash on Device bus CS0 | |
51 | ****************************************************************************/ | |
52 | ||
53 | static struct mtd_partition kurobox_pro_nand_parts[] = { | |
54 | { | |
55 | .name = "uImage", | |
56 | .offset = 0, | |
57 | .size = SZ_4M, | |
e7068ad3 | 58 | }, { |
1e780453 RS |
59 | .name = "rootfs", |
60 | .offset = SZ_4M, | |
61 | .size = SZ_64M, | |
e7068ad3 | 62 | }, { |
1e780453 RS |
63 | .name = "extra", |
64 | .offset = SZ_4M + SZ_64M, | |
65 | .size = SZ_256M - (SZ_4M + SZ_64M), | |
66 | }, | |
67 | }; | |
68 | ||
69 | static struct resource kurobox_pro_nand_resource = { | |
70 | .flags = IORESOURCE_MEM, | |
71 | .start = KUROBOX_PRO_NAND_BASE, | |
72 | .end = KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1, | |
73 | }; | |
74 | ||
75 | static struct orion_nand_data kurobox_pro_nand_data = { | |
76 | .parts = kurobox_pro_nand_parts, | |
77 | .nr_parts = ARRAY_SIZE(kurobox_pro_nand_parts), | |
78 | .cle = 0, | |
79 | .ale = 1, | |
80 | .width = 8, | |
81 | }; | |
82 | ||
83 | static struct platform_device kurobox_pro_nand_flash = { | |
84 | .name = "orion_nand", | |
85 | .id = -1, | |
86 | .dev = { | |
87 | .platform_data = &kurobox_pro_nand_data, | |
88 | }, | |
89 | .resource = &kurobox_pro_nand_resource, | |
90 | .num_resources = 1, | |
91 | }; | |
92 | ||
93 | /***************************************************************************** | |
94 | * 256KB NOR Flash on BOOT Device | |
95 | ****************************************************************************/ | |
96 | ||
97 | static struct physmap_flash_data kurobox_pro_nor_flash_data = { | |
98 | .width = 1, | |
99 | }; | |
100 | ||
101 | static struct resource kurobox_pro_nor_flash_resource = { | |
102 | .flags = IORESOURCE_MEM, | |
103 | .start = KUROBOX_PRO_NOR_BOOT_BASE, | |
104 | .end = KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1, | |
105 | }; | |
106 | ||
107 | static struct platform_device kurobox_pro_nor_flash = { | |
108 | .name = "physmap-flash", | |
109 | .id = 0, | |
110 | .dev = { | |
111 | .platform_data = &kurobox_pro_nor_flash_data, | |
112 | }, | |
113 | .num_resources = 1, | |
114 | .resource = &kurobox_pro_nor_flash_resource, | |
115 | }; | |
116 | ||
117 | /***************************************************************************** | |
118 | * PCI | |
119 | ****************************************************************************/ | |
120 | ||
d5341942 RB |
121 | static int __init kurobox_pro_pci_map_irq(const struct pci_dev *dev, u8 slot, |
122 | u8 pin) | |
1e780453 | 123 | { |
92b913b0 LB |
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 | ||
1e780453 RS |
133 | /* |
134 | * PCI isn't used on the Kuro | |
135 | */ | |
1e780453 RS |
136 | return -1; |
137 | } | |
138 | ||
139 | static struct hw_pci kurobox_pro_pci __initdata = { | |
bbdf1c1e | 140 | .nr_controllers = 2, |
9dd0b194 LB |
141 | .setup = orion5x_pci_sys_setup, |
142 | .scan = orion5x_pci_sys_scan_bus, | |
1e780453 RS |
143 | .map_irq = kurobox_pro_pci_map_irq, |
144 | }; | |
145 | ||
146 | static int __init kurobox_pro_pci_init(void) | |
147 | { | |
7a6bb262 PA |
148 | if (machine_is_kurobox_pro()) { |
149 | orion5x_pci_disable(); | |
1e780453 | 150 | pci_common_init(&kurobox_pro_pci); |
7a6bb262 | 151 | } |
1e780453 RS |
152 | |
153 | return 0; | |
154 | } | |
155 | ||
156 | subsys_initcall(kurobox_pro_pci_init); | |
157 | ||
158 | /***************************************************************************** | |
159 | * Ethernet | |
160 | ****************************************************************************/ | |
161 | ||
162 | static struct mv643xx_eth_platform_data kurobox_pro_eth_data = { | |
ac840605 | 163 | .phy_addr = MV643XX_ETH_PHY_ADDR(8), |
1e780453 RS |
164 | }; |
165 | ||
166 | /***************************************************************************** | |
167 | * RTC 5C372a on I2C bus | |
168 | ****************************************************************************/ | |
169 | static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = { | |
3760f736 | 170 | I2C_BOARD_INFO("rs5c372a", 0x32), |
1e780453 RS |
171 | }; |
172 | ||
3b277c29 BB |
173 | /***************************************************************************** |
174 | * SATA | |
175 | ****************************************************************************/ | |
176 | static struct mv_sata_platform_data kurobox_pro_sata_data = { | |
e7068ad3 | 177 | .n_ports = 2, |
3b277c29 BB |
178 | }; |
179 | ||
a0087f2f SB |
180 | /***************************************************************************** |
181 | * Kurobox Pro specific power off method via UART1-attached microcontroller | |
182 | ****************************************************************************/ | |
183 | ||
184 | #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) | |
185 | ||
186 | static int kurobox_pro_miconread(unsigned char *buf, int count) | |
187 | { | |
188 | int i; | |
189 | int timeout; | |
190 | ||
191 | for (i = 0; i < count; i++) { | |
192 | timeout = 10; | |
193 | ||
194 | while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) { | |
195 | if (--timeout == 0) | |
196 | break; | |
197 | udelay(1000); | |
198 | } | |
199 | ||
200 | if (timeout == 0) | |
201 | break; | |
202 | buf[i] = readl(UART1_REG(RX)); | |
203 | } | |
204 | ||
205 | /* return read bytes */ | |
206 | return i; | |
207 | } | |
208 | ||
209 | static int kurobox_pro_miconwrite(const unsigned char *buf, int count) | |
210 | { | |
211 | int i = 0; | |
212 | ||
213 | while (count--) { | |
214 | while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE)) | |
215 | barrier(); | |
216 | writel(buf[i++], UART1_REG(TX)); | |
217 | } | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | static int kurobox_pro_miconsend(const unsigned char *data, int count) | |
223 | { | |
224 | int i; | |
225 | unsigned char checksum = 0; | |
226 | unsigned char recv_buf[40]; | |
227 | unsigned char send_buf[40]; | |
228 | unsigned char correct_ack[3]; | |
229 | int retry = 2; | |
230 | ||
231 | /* Generate checksum */ | |
232 | for (i = 0; i < count; i++) | |
233 | checksum -= data[i]; | |
234 | ||
235 | do { | |
236 | /* Send data */ | |
237 | kurobox_pro_miconwrite(data, count); | |
238 | ||
239 | /* send checksum */ | |
240 | kurobox_pro_miconwrite(&checksum, 1); | |
241 | ||
242 | if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) { | |
243 | printk(KERN_ERR ">%s: receive failed.\n", __func__); | |
244 | ||
245 | /* send preamble to clear the receive buffer */ | |
246 | memset(&send_buf, 0xff, sizeof(send_buf)); | |
247 | kurobox_pro_miconwrite(send_buf, sizeof(send_buf)); | |
248 | ||
249 | /* make dummy reads */ | |
250 | mdelay(100); | |
251 | kurobox_pro_miconread(recv_buf, sizeof(recv_buf)); | |
252 | } else { | |
253 | /* Generate expected ack */ | |
254 | correct_ack[0] = 0x01; | |
255 | correct_ack[1] = data[1]; | |
256 | correct_ack[2] = 0x00; | |
257 | ||
258 | /* checksum Check */ | |
259 | if ((recv_buf[0] + recv_buf[1] + recv_buf[2] + | |
260 | recv_buf[3]) & 0xFF) { | |
261 | printk(KERN_ERR ">%s: Checksum Error : " | |
262 | "Received data[%02x, %02x, %02x, %02x]" | |
263 | "\n", __func__, recv_buf[0], | |
264 | recv_buf[1], recv_buf[2], recv_buf[3]); | |
265 | } else { | |
266 | /* Check Received Data */ | |
267 | if (correct_ack[0] == recv_buf[0] && | |
268 | correct_ack[1] == recv_buf[1] && | |
269 | correct_ack[2] == recv_buf[2]) { | |
270 | /* Interval for next command */ | |
271 | mdelay(10); | |
272 | ||
273 | /* Receive ACK */ | |
274 | return 0; | |
275 | } | |
276 | } | |
277 | /* Received NAK or illegal Data */ | |
278 | printk(KERN_ERR ">%s: Error : NAK or Illegal Data " | |
279 | "Received\n", __func__); | |
280 | } | |
281 | } while (retry--); | |
282 | ||
283 | /* Interval for next command */ | |
284 | mdelay(10); | |
285 | ||
286 | return -1; | |
287 | } | |
288 | ||
289 | static void kurobox_pro_power_off(void) | |
290 | { | |
291 | const unsigned char watchdogkill[] = {0x01, 0x35, 0x00}; | |
292 | const unsigned char shutdownwait[] = {0x00, 0x0c}; | |
293 | const unsigned char poweroff[] = {0x00, 0x06}; | |
294 | /* 38400 baud divisor */ | |
ebe35aff | 295 | const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400)); |
a0087f2f SB |
296 | |
297 | pr_info("%s: triggering power-off...\n", __func__); | |
298 | ||
299 | /* hijack uart1 and reset into sane state (38400,8n1,even parity) */ | |
300 | writel(0x83, UART1_REG(LCR)); | |
301 | writel(divisor & 0xff, UART1_REG(DLL)); | |
302 | writel((divisor >> 8) & 0xff, UART1_REG(DLM)); | |
303 | writel(0x1b, UART1_REG(LCR)); | |
304 | writel(0x00, UART1_REG(IER)); | |
305 | writel(0x07, UART1_REG(FCR)); | |
306 | writel(0x00, UART1_REG(MCR)); | |
307 | ||
308 | /* Send the commands to shutdown the Kurobox Pro */ | |
309 | kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ; | |
310 | kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ; | |
311 | kurobox_pro_miconsend(poweroff, sizeof(poweroff)); | |
312 | } | |
313 | ||
1e780453 RS |
314 | /***************************************************************************** |
315 | * General Setup | |
316 | ****************************************************************************/ | |
554cdaef AL |
317 | static unsigned int kurobox_pro_mpp_modes[] __initdata = { |
318 | MPP0_UNUSED, | |
319 | MPP1_UNUSED, | |
320 | MPP2_GPIO, /* GPIO Micon */ | |
321 | MPP3_GPIO, /* GPIO Rtc */ | |
322 | MPP4_UNUSED, | |
323 | MPP5_UNUSED, | |
324 | MPP6_NAND, /* NAND Flash REn */ | |
325 | MPP7_NAND, /* NAND Flash WEn */ | |
326 | MPP8_UNUSED, | |
327 | MPP9_UNUSED, | |
328 | MPP10_UNUSED, | |
329 | MPP11_UNUSED, | |
330 | MPP12_SATA_LED, /* SATA 0 presence */ | |
331 | MPP13_SATA_LED, /* SATA 1 presence */ | |
332 | MPP14_SATA_LED, /* SATA 0 active */ | |
333 | MPP15_SATA_LED, /* SATA 1 active */ | |
334 | MPP16_UART, /* UART1 RXD */ | |
335 | MPP17_UART, /* UART1 TXD */ | |
336 | MPP18_UART, /* UART1 CTSn */ | |
337 | MPP19_UART, /* UART1 RTSn */ | |
338 | 0, | |
19cfd5c0 | 339 | }; |
1e780453 | 340 | |
1e780453 RS |
341 | static void __init kurobox_pro_init(void) |
342 | { | |
343 | /* | |
344 | * Setup basic Orion functions. Need to be called early. | |
345 | */ | |
9dd0b194 | 346 | orion5x_init(); |
1e780453 | 347 | |
19cfd5c0 | 348 | orion5x_mpp_conf(kurobox_pro_mpp_modes); |
1e780453 | 349 | |
044f6c7c LB |
350 | /* |
351 | * Configure peripherals. | |
352 | */ | |
353 | orion5x_ehci0_init(); | |
354 | orion5x_ehci1_init(); | |
355 | orion5x_eth_init(&kurobox_pro_eth_data); | |
356 | orion5x_i2c_init(); | |
357 | orion5x_sata_init(&kurobox_pro_sata_data); | |
358 | orion5x_uart0_init(); | |
9e956850 | 359 | orion5x_uart1_init(); |
1d5a1a6e | 360 | orion5x_xor_init(); |
044f6c7c LB |
361 | |
362 | orion5x_setup_dev_boot_win(KUROBOX_PRO_NOR_BOOT_BASE, | |
363 | KUROBOX_PRO_NOR_BOOT_SIZE); | |
87549251 | 364 | platform_device_register(&kurobox_pro_nor_flash); |
044f6c7c LB |
365 | |
366 | if (machine_is_kurobox_pro()) { | |
367 | orion5x_setup_dev0_win(KUROBOX_PRO_NAND_BASE, | |
368 | KUROBOX_PRO_NAND_SIZE); | |
87549251 | 369 | platform_device_register(&kurobox_pro_nand_flash); |
044f6c7c LB |
370 | } |
371 | ||
1e780453 | 372 | i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1); |
a0087f2f SB |
373 | |
374 | /* register Kurobox Pro specific power-off method */ | |
375 | pm_power_off = kurobox_pro_power_off; | |
1e780453 RS |
376 | } |
377 | ||
87549251 | 378 | #ifdef CONFIG_MACH_KUROBOX_PRO |
1e780453 RS |
379 | MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro") |
380 | /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */ | |
65aa1b1e | 381 | .atag_offset = 0x100, |
1e780453 | 382 | .init_machine = kurobox_pro_init, |
9dd0b194 | 383 | .map_io = orion5x_map_io, |
4ee1f6b5 | 384 | .init_early = orion5x_init_early, |
9dd0b194 | 385 | .init_irq = orion5x_init_irq, |
6bb27d73 | 386 | .init_time = orion5x_timer_init, |
be73a347 | 387 | .fixup = tag_fixup_mem32, |
764cbcc2 | 388 | .restart = orion5x_restart, |
1e780453 | 389 | MACHINE_END |
87549251 BB |
390 | #endif |
391 | ||
392 | #ifdef CONFIG_MACH_LINKSTATION_PRO | |
393 | MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live") | |
394 | /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */ | |
65aa1b1e | 395 | .atag_offset = 0x100, |
87549251 BB |
396 | .init_machine = kurobox_pro_init, |
397 | .map_io = orion5x_map_io, | |
4ee1f6b5 | 398 | .init_early = orion5x_init_early, |
87549251 | 399 | .init_irq = orion5x_init_irq, |
6bb27d73 | 400 | .init_time = orion5x_timer_init, |
87549251 | 401 | .fixup = tag_fixup_mem32, |
764cbcc2 | 402 | .restart = orion5x_restart, |
87549251 BB |
403 | MACHINE_END |
404 | #endif |