1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * arch/arm/mach-orion5x/kurobox_pro-setup.c |
4 | * |
5 | * Maintainer: Ronen Shitrit <rshitrit@marvell.com> |
6 | */ |
7 | #include <linux/gpio.h> |
8 | #include <linux/kernel.h> |
9 | #include <linux/init.h> |
10 | #include <linux/platform_device.h> |
11 | #include <linux/pci.h> |
12 | #include <linux/irq.h> |
13 | #include <linux/delay.h> |
14 | #include <linux/mtd/physmap.h> |
15 | #include <linux/mtd/rawnand.h> |
16 | #include <linux/mv643xx_eth.h> |
17 | #include <linux/i2c.h> |
18 | #include <linux/serial_reg.h> |
19 | #include <linux/ata_platform.h> |
20 | #include <asm/mach-types.h> |
21 | #include <asm/mach/arch.h> |
22 | #include <asm/mach/pci.h> |
23 | #include <linux/platform_data/mtd-orion_nand.h> |
24 | #include "common.h" |
25 | #include "mpp.h" |
26 | #include "orion5x.h" |
27 | |
28 | /***************************************************************************** |
29 | * KUROBOX-PRO Info |
30 | ****************************************************************************/ |
31 | |
32 | /* |
33 | * 256K NOR flash Device bus boot chip select |
34 | */ |
35 | |
36 | #define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000 |
37 | #define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K |
38 | |
39 | /* |
40 | * 256M NAND flash on Device bus chip select 1 |
41 | */ |
42 | |
43 | #define KUROBOX_PRO_NAND_BASE 0xfc000000 |
44 | #define KUROBOX_PRO_NAND_SIZE SZ_2M |
45 | |
46 | /***************************************************************************** |
47 | * 256MB NAND Flash on Device bus CS0 |
48 | ****************************************************************************/ |
49 | |
50 | static struct mtd_partition kurobox_pro_nand_parts[] = { |
51 | { |
52 | .name = "uImage" , |
53 | .offset = 0, |
54 | .size = SZ_4M, |
55 | }, { |
56 | .name = "rootfs" , |
57 | .offset = SZ_4M, |
58 | .size = SZ_64M, |
59 | }, { |
60 | .name = "extra" , |
61 | .offset = SZ_4M + SZ_64M, |
62 | .size = SZ_256M - (SZ_4M + SZ_64M), |
63 | }, |
64 | }; |
65 | |
66 | static struct resource kurobox_pro_nand_resource = { |
67 | .flags = IORESOURCE_MEM, |
68 | .start = KUROBOX_PRO_NAND_BASE, |
69 | .end = KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1, |
70 | }; |
71 | |
72 | static struct orion_nand_data kurobox_pro_nand_data = { |
73 | .parts = kurobox_pro_nand_parts, |
74 | .nr_parts = ARRAY_SIZE(kurobox_pro_nand_parts), |
75 | .cle = 0, |
76 | .ale = 1, |
77 | .width = 8, |
78 | }; |
79 | |
80 | static struct platform_device kurobox_pro_nand_flash = { |
81 | .name = "orion_nand" , |
82 | .id = -1, |
83 | .dev = { |
84 | .platform_data = &kurobox_pro_nand_data, |
85 | }, |
86 | .resource = &kurobox_pro_nand_resource, |
87 | .num_resources = 1, |
88 | }; |
89 | |
90 | /***************************************************************************** |
91 | * 256KB NOR Flash on BOOT Device |
92 | ****************************************************************************/ |
93 | |
94 | static struct physmap_flash_data kurobox_pro_nor_flash_data = { |
95 | .width = 1, |
96 | }; |
97 | |
98 | static struct resource kurobox_pro_nor_flash_resource = { |
99 | .flags = IORESOURCE_MEM, |
100 | .start = KUROBOX_PRO_NOR_BOOT_BASE, |
101 | .end = KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1, |
102 | }; |
103 | |
104 | static struct platform_device kurobox_pro_nor_flash = { |
105 | .name = "physmap-flash" , |
106 | .id = 0, |
107 | .dev = { |
108 | .platform_data = &kurobox_pro_nor_flash_data, |
109 | }, |
110 | .num_resources = 1, |
111 | .resource = &kurobox_pro_nor_flash_resource, |
112 | }; |
113 | |
114 | /***************************************************************************** |
115 | * PCI |
116 | ****************************************************************************/ |
117 | |
118 | static int __init kurobox_pro_pci_map_irq(const struct pci_dev *dev, u8 slot, |
119 | u8 pin) |
120 | { |
121 | int irq; |
122 | |
123 | /* |
124 | * Check for devices with hard-wired IRQs. |
125 | */ |
126 | irq = orion5x_pci_map_irq(dev, slot, pin); |
127 | if (irq != -1) |
128 | return irq; |
129 | |
130 | /* |
131 | * PCI isn't used on the Kuro |
132 | */ |
133 | return -1; |
134 | } |
135 | |
136 | static struct hw_pci kurobox_pro_pci __initdata = { |
137 | .nr_controllers = 2, |
138 | .setup = orion5x_pci_sys_setup, |
139 | .scan = orion5x_pci_sys_scan_bus, |
140 | .map_irq = kurobox_pro_pci_map_irq, |
141 | }; |
142 | |
143 | static int __init kurobox_pro_pci_init(void) |
144 | { |
145 | if (machine_is_kurobox_pro()) { |
146 | orion5x_pci_disable(); |
147 | pci_common_init(&kurobox_pro_pci); |
148 | } |
149 | |
150 | return 0; |
151 | } |
152 | |
153 | subsys_initcall(kurobox_pro_pci_init); |
154 | |
155 | /***************************************************************************** |
156 | * Ethernet |
157 | ****************************************************************************/ |
158 | |
159 | static struct mv643xx_eth_platform_data kurobox_pro_eth_data = { |
160 | .phy_addr = MV643XX_ETH_PHY_ADDR(8), |
161 | }; |
162 | |
163 | /***************************************************************************** |
164 | * RTC 5C372a on I2C bus |
165 | ****************************************************************************/ |
166 | static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = { |
167 | I2C_BOARD_INFO("rs5c372a" , 0x32), |
168 | }; |
169 | |
170 | /***************************************************************************** |
171 | * SATA |
172 | ****************************************************************************/ |
173 | static struct mv_sata_platform_data kurobox_pro_sata_data = { |
174 | .n_ports = 2, |
175 | }; |
176 | |
177 | /***************************************************************************** |
178 | * Kurobox Pro specific power off method via UART1-attached microcontroller |
179 | ****************************************************************************/ |
180 | |
181 | #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) |
182 | |
183 | static int kurobox_pro_miconread(unsigned char *buf, int count) |
184 | { |
185 | int i; |
186 | int timeout; |
187 | |
188 | for (i = 0; i < count; i++) { |
189 | timeout = 10; |
190 | |
191 | while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) { |
192 | if (--timeout == 0) |
193 | break; |
194 | udelay(1000); |
195 | } |
196 | |
197 | if (timeout == 0) |
198 | break; |
199 | buf[i] = readl(UART1_REG(RX)); |
200 | } |
201 | |
202 | /* return read bytes */ |
203 | return i; |
204 | } |
205 | |
206 | static int kurobox_pro_miconwrite(const unsigned char *buf, int count) |
207 | { |
208 | int i = 0; |
209 | |
210 | while (count--) { |
211 | while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE)) |
212 | barrier(); |
213 | writel(val: buf[i++], UART1_REG(TX)); |
214 | } |
215 | |
216 | return 0; |
217 | } |
218 | |
219 | static int kurobox_pro_miconsend(const unsigned char *data, int count) |
220 | { |
221 | int i; |
222 | unsigned char checksum = 0; |
223 | unsigned char recv_buf[40]; |
224 | unsigned char send_buf[40]; |
225 | unsigned char correct_ack[3]; |
226 | int retry = 2; |
227 | |
228 | /* Generate checksum */ |
229 | for (i = 0; i < count; i++) |
230 | checksum -= data[i]; |
231 | |
232 | do { |
233 | /* Send data */ |
234 | kurobox_pro_miconwrite(buf: data, count); |
235 | |
236 | /* send checksum */ |
237 | kurobox_pro_miconwrite(buf: &checksum, count: 1); |
238 | |
239 | if (kurobox_pro_miconread(buf: recv_buf, count: sizeof(recv_buf)) <= 3) { |
240 | printk(KERN_ERR ">%s: receive failed.\n" , __func__); |
241 | |
242 | /* send preamble to clear the receive buffer */ |
243 | memset(&send_buf, 0xff, sizeof(send_buf)); |
244 | kurobox_pro_miconwrite(buf: send_buf, count: sizeof(send_buf)); |
245 | |
246 | /* make dummy reads */ |
247 | mdelay(100); |
248 | kurobox_pro_miconread(buf: recv_buf, count: sizeof(recv_buf)); |
249 | } else { |
250 | /* Generate expected ack */ |
251 | correct_ack[0] = 0x01; |
252 | correct_ack[1] = data[1]; |
253 | correct_ack[2] = 0x00; |
254 | |
255 | /* checksum Check */ |
256 | if ((recv_buf[0] + recv_buf[1] + recv_buf[2] + |
257 | recv_buf[3]) & 0xFF) { |
258 | printk(KERN_ERR ">%s: Checksum Error : " |
259 | "Received data[%02x, %02x, %02x, %02x]" |
260 | "\n" , __func__, recv_buf[0], |
261 | recv_buf[1], recv_buf[2], recv_buf[3]); |
262 | } else { |
263 | /* Check Received Data */ |
264 | if (correct_ack[0] == recv_buf[0] && |
265 | correct_ack[1] == recv_buf[1] && |
266 | correct_ack[2] == recv_buf[2]) { |
267 | /* Interval for next command */ |
268 | mdelay(10); |
269 | |
270 | /* Receive ACK */ |
271 | return 0; |
272 | } |
273 | } |
274 | /* Received NAK or illegal Data */ |
275 | printk(KERN_ERR ">%s: Error : NAK or Illegal Data " |
276 | "Received\n" , __func__); |
277 | } |
278 | } while (retry--); |
279 | |
280 | /* Interval for next command */ |
281 | mdelay(10); |
282 | |
283 | return -1; |
284 | } |
285 | |
286 | static void kurobox_pro_power_off(void) |
287 | { |
288 | const unsigned char watchdogkill[] = {0x01, 0x35, 0x00}; |
289 | const unsigned char shutdownwait[] = {0x00, 0x0c}; |
290 | const unsigned char poweroff[] = {0x00, 0x06}; |
291 | /* 38400 baud divisor */ |
292 | const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400)); |
293 | |
294 | pr_info("%s: triggering power-off...\n" , __func__); |
295 | |
296 | /* hijack uart1 and reset into sane state (38400,8n1,even parity) */ |
297 | writel(val: 0x83, UART1_REG(LCR)); |
298 | writel(val: divisor & 0xff, UART1_REG(DLL)); |
299 | writel(val: (divisor >> 8) & 0xff, UART1_REG(DLM)); |
300 | writel(val: 0x1b, UART1_REG(LCR)); |
301 | writel(val: 0x00, UART1_REG(IER)); |
302 | writel(val: 0x07, UART1_REG(FCR)); |
303 | writel(val: 0x00, UART1_REG(MCR)); |
304 | |
305 | /* Send the commands to shutdown the Kurobox Pro */ |
306 | kurobox_pro_miconsend(data: watchdogkill, count: sizeof(watchdogkill)) ; |
307 | kurobox_pro_miconsend(data: shutdownwait, count: sizeof(shutdownwait)) ; |
308 | kurobox_pro_miconsend(data: poweroff, count: sizeof(poweroff)); |
309 | } |
310 | |
311 | /***************************************************************************** |
312 | * General Setup |
313 | ****************************************************************************/ |
314 | static unsigned int kurobox_pro_mpp_modes[] __initdata = { |
315 | MPP0_UNUSED, |
316 | MPP1_UNUSED, |
317 | MPP2_GPIO, /* GPIO Micon */ |
318 | MPP3_GPIO, /* GPIO Rtc */ |
319 | MPP4_UNUSED, |
320 | MPP5_UNUSED, |
321 | MPP6_NAND, /* NAND Flash REn */ |
322 | MPP7_NAND, /* NAND Flash WEn */ |
323 | MPP8_UNUSED, |
324 | MPP9_UNUSED, |
325 | MPP10_UNUSED, |
326 | MPP11_UNUSED, |
327 | MPP12_SATA_LED, /* SATA 0 presence */ |
328 | MPP13_SATA_LED, /* SATA 1 presence */ |
329 | MPP14_SATA_LED, /* SATA 0 active */ |
330 | MPP15_SATA_LED, /* SATA 1 active */ |
331 | MPP16_UART, /* UART1 RXD */ |
332 | MPP17_UART, /* UART1 TXD */ |
333 | MPP18_UART, /* UART1 CTSn */ |
334 | MPP19_UART, /* UART1 RTSn */ |
335 | 0, |
336 | }; |
337 | |
338 | static void __init kurobox_pro_init(void) |
339 | { |
340 | /* |
341 | * Setup basic Orion functions. Need to be called early. |
342 | */ |
343 | orion5x_init(); |
344 | |
345 | orion5x_mpp_conf(mpp_list: kurobox_pro_mpp_modes); |
346 | |
347 | /* |
348 | * Configure peripherals. |
349 | */ |
350 | orion5x_ehci0_init(); |
351 | orion5x_ehci1_init(); |
352 | orion5x_eth_init(eth_data: &kurobox_pro_eth_data); |
353 | orion5x_i2c_init(); |
354 | orion5x_sata_init(sata_data: &kurobox_pro_sata_data); |
355 | orion5x_uart0_init(); |
356 | orion5x_uart1_init(); |
357 | orion5x_xor_init(); |
358 | |
359 | mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET, |
360 | ORION_MBUS_DEVBUS_BOOT_ATTR, |
361 | KUROBOX_PRO_NOR_BOOT_BASE, |
362 | KUROBOX_PRO_NOR_BOOT_SIZE); |
363 | platform_device_register(&kurobox_pro_nor_flash); |
364 | |
365 | if (machine_is_kurobox_pro()) { |
366 | mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0), |
367 | ORION_MBUS_DEVBUS_ATTR(0), |
368 | KUROBOX_PRO_NAND_BASE, |
369 | KUROBOX_PRO_NAND_SIZE); |
370 | platform_device_register(&kurobox_pro_nand_flash); |
371 | } |
372 | |
373 | i2c_register_board_info(busnum: 0, info: &kurobox_pro_i2c_rtc, n: 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 | .atag_offset = 0x100, |
383 | .nr_irqs = ORION5X_NR_IRQS, |
384 | .init_machine = kurobox_pro_init, |
385 | .map_io = orion5x_map_io, |
386 | .init_early = orion5x_init_early, |
387 | .init_irq = orion5x_init_irq, |
388 | .init_time = orion5x_timer_init, |
389 | .fixup = tag_fixup_mem32, |
390 | .restart = orion5x_restart, |
391 | MACHINE_END |
392 | #endif |
393 | |
394 | #ifdef CONFIG_MACH_LINKSTATION_PRO |
395 | MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live" ) |
396 | /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */ |
397 | .atag_offset = 0x100, |
398 | .nr_irqs = ORION5X_NR_IRQS, |
399 | .init_machine = kurobox_pro_init, |
400 | .map_io = orion5x_map_io, |
401 | .init_early = orion5x_init_early, |
402 | .init_irq = orion5x_init_irq, |
403 | .init_time = orion5x_timer_init, |
404 | .fixup = tag_fixup_mem32, |
405 | .restart = orion5x_restart, |
406 | MACHINE_END |
407 | #endif |
408 | |