2 * arch/arm/mach-orion5x/kurobox_pro-setup.c
4 * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
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.
10 #include <linux/gpio.h>
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/rawnand.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/mach/arch.h>
25 #include <asm/mach/pci.h>
26 #include <linux/platform_data/mtd-orion_nand.h>
31 /*****************************************************************************
33 ****************************************************************************/
36 * 256K NOR flash Device bus boot chip select
39 #define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000
40 #define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K
43 * 256M NAND flash on Device bus chip select 1
46 #define KUROBOX_PRO_NAND_BASE 0xfc000000
47 #define KUROBOX_PRO_NAND_SIZE SZ_2M
49 /*****************************************************************************
50 * 256MB NAND Flash on Device bus CS0
51 ****************************************************************************/
53 static struct mtd_partition kurobox_pro_nand_parts
[] = {
64 .offset
= SZ_4M
+ SZ_64M
,
65 .size
= SZ_256M
- (SZ_4M
+ SZ_64M
),
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,
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
),
83 static struct platform_device kurobox_pro_nand_flash
= {
87 .platform_data
= &kurobox_pro_nand_data
,
89 .resource
= &kurobox_pro_nand_resource
,
93 /*****************************************************************************
94 * 256KB NOR Flash on BOOT Device
95 ****************************************************************************/
97 static struct physmap_flash_data kurobox_pro_nor_flash_data
= {
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,
107 static struct platform_device kurobox_pro_nor_flash
= {
108 .name
= "physmap-flash",
111 .platform_data
= &kurobox_pro_nor_flash_data
,
114 .resource
= &kurobox_pro_nor_flash_resource
,
117 /*****************************************************************************
119 ****************************************************************************/
121 static int __init
kurobox_pro_pci_map_irq(const struct pci_dev
*dev
, u8 slot
,
127 * Check for devices with hard-wired IRQs.
129 irq
= orion5x_pci_map_irq(dev
, slot
, pin
);
134 * PCI isn't used on the Kuro
139 static struct hw_pci kurobox_pro_pci __initdata
= {
141 .setup
= orion5x_pci_sys_setup
,
142 .scan
= orion5x_pci_sys_scan_bus
,
143 .map_irq
= kurobox_pro_pci_map_irq
,
146 static int __init
kurobox_pro_pci_init(void)
148 if (machine_is_kurobox_pro()) {
149 orion5x_pci_disable();
150 pci_common_init(&kurobox_pro_pci
);
156 subsys_initcall(kurobox_pro_pci_init
);
158 /*****************************************************************************
160 ****************************************************************************/
162 static struct mv643xx_eth_platform_data kurobox_pro_eth_data
= {
163 .phy_addr
= MV643XX_ETH_PHY_ADDR(8),
166 /*****************************************************************************
167 * RTC 5C372a on I2C bus
168 ****************************************************************************/
169 static struct i2c_board_info __initdata kurobox_pro_i2c_rtc
= {
170 I2C_BOARD_INFO("rs5c372a", 0x32),
173 /*****************************************************************************
175 ****************************************************************************/
176 static struct mv_sata_platform_data kurobox_pro_sata_data
= {
180 /*****************************************************************************
181 * Kurobox Pro specific power off method via UART1-attached microcontroller
182 ****************************************************************************/
184 #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2))
186 static int kurobox_pro_miconread(unsigned char *buf
, int count
)
191 for (i
= 0; i
< count
; i
++) {
194 while (!(readl(UART1_REG(LSR
)) & UART_LSR_DR
)) {
202 buf
[i
] = readl(UART1_REG(RX
));
205 /* return read bytes */
209 static int kurobox_pro_miconwrite(const unsigned char *buf
, int count
)
214 while (!(readl(UART1_REG(LSR
)) & UART_LSR_THRE
))
216 writel(buf
[i
++], UART1_REG(TX
));
222 static int kurobox_pro_miconsend(const unsigned char *data
, int count
)
225 unsigned char checksum
= 0;
226 unsigned char recv_buf
[40];
227 unsigned char send_buf
[40];
228 unsigned char correct_ack
[3];
231 /* Generate checksum */
232 for (i
= 0; i
< count
; i
++)
237 kurobox_pro_miconwrite(data
, count
);
240 kurobox_pro_miconwrite(&checksum
, 1);
242 if (kurobox_pro_miconread(recv_buf
, sizeof(recv_buf
)) <= 3) {
243 printk(KERN_ERR
">%s: receive failed.\n", __func__
);
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
));
249 /* make dummy reads */
251 kurobox_pro_miconread(recv_buf
, sizeof(recv_buf
));
253 /* Generate expected ack */
254 correct_ack
[0] = 0x01;
255 correct_ack
[1] = data
[1];
256 correct_ack
[2] = 0x00;
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]);
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 */
277 /* Received NAK or illegal Data */
278 printk(KERN_ERR
">%s: Error : NAK or Illegal Data "
279 "Received\n", __func__
);
283 /* Interval for next command */
289 static void kurobox_pro_power_off(void)
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 */
295 const unsigned divisor
= ((orion5x_tclk
+ (8 * 38400)) / (16 * 38400));
297 pr_info("%s: triggering power-off...\n", __func__
);
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
));
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
));
314 /*****************************************************************************
316 ****************************************************************************/
317 static unsigned int kurobox_pro_mpp_modes
[] __initdata
= {
320 MPP2_GPIO
, /* GPIO Micon */
321 MPP3_GPIO
, /* GPIO Rtc */
324 MPP6_NAND
, /* NAND Flash REn */
325 MPP7_NAND
, /* NAND Flash WEn */
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 */
341 static void __init
kurobox_pro_init(void)
344 * Setup basic Orion functions. Need to be called early.
348 orion5x_mpp_conf(kurobox_pro_mpp_modes
);
351 * Configure peripherals.
353 orion5x_ehci0_init();
354 orion5x_ehci1_init();
355 orion5x_eth_init(&kurobox_pro_eth_data
);
357 orion5x_sata_init(&kurobox_pro_sata_data
);
358 orion5x_uart0_init();
359 orion5x_uart1_init();
362 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET
,
363 ORION_MBUS_DEVBUS_BOOT_ATTR
,
364 KUROBOX_PRO_NOR_BOOT_BASE
,
365 KUROBOX_PRO_NOR_BOOT_SIZE
);
366 platform_device_register(&kurobox_pro_nor_flash
);
368 if (machine_is_kurobox_pro()) {
369 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0),
370 ORION_MBUS_DEVBUS_ATTR(0),
371 KUROBOX_PRO_NAND_BASE
,
372 KUROBOX_PRO_NAND_SIZE
);
373 platform_device_register(&kurobox_pro_nand_flash
);
376 i2c_register_board_info(0, &kurobox_pro_i2c_rtc
, 1);
378 /* register Kurobox Pro specific power-off method */
379 pm_power_off
= kurobox_pro_power_off
;
382 #ifdef CONFIG_MACH_KUROBOX_PRO
383 MACHINE_START(KUROBOX_PRO
, "Buffalo/Revogear Kurobox Pro")
384 /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
385 .atag_offset
= 0x100,
386 .nr_irqs
= ORION5X_NR_IRQS
,
387 .init_machine
= kurobox_pro_init
,
388 .map_io
= orion5x_map_io
,
389 .init_early
= orion5x_init_early
,
390 .init_irq
= orion5x_init_irq
,
391 .init_time
= orion5x_timer_init
,
392 .fixup
= tag_fixup_mem32
,
393 .restart
= orion5x_restart
,
397 #ifdef CONFIG_MACH_LINKSTATION_PRO
398 MACHINE_START(LINKSTATION_PRO
, "Buffalo Linkstation Pro/Live")
399 /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
400 .atag_offset
= 0x100,
401 .nr_irqs
= ORION5X_NR_IRQS
,
402 .init_machine
= kurobox_pro_init
,
403 .map_io
= orion5x_map_io
,
404 .init_early
= orion5x_init_early
,
405 .init_irq
= orion5x_init_irq
,
406 .init_time
= orion5x_timer_init
,
407 .fixup
= tag_fixup_mem32
,
408 .restart
= orion5x_restart
,