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/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/mach/arch.h>
25 #include <asm/mach/pci.h>
26 #include <mach/orion5x.h>
27 #include <plat/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 .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
,
147 static int __init
kurobox_pro_pci_init(void)
149 if (machine_is_kurobox_pro()) {
150 orion5x_pci_disable();
151 pci_common_init(&kurobox_pro_pci
);
157 subsys_initcall(kurobox_pro_pci_init
);
159 /*****************************************************************************
161 ****************************************************************************/
163 static struct mv643xx_eth_platform_data kurobox_pro_eth_data
= {
164 .phy_addr
= MV643XX_ETH_PHY_ADDR(8),
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),
174 /*****************************************************************************
176 ****************************************************************************/
177 static struct mv_sata_platform_data kurobox_pro_sata_data
= {
181 /*****************************************************************************
182 * Kurobox Pro specific power off method via UART1-attached microcontroller
183 ****************************************************************************/
185 #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2))
187 static int kurobox_pro_miconread(unsigned char *buf
, int count
)
192 for (i
= 0; i
< count
; i
++) {
195 while (!(readl(UART1_REG(LSR
)) & UART_LSR_DR
)) {
203 buf
[i
] = readl(UART1_REG(RX
));
206 /* return read bytes */
210 static int kurobox_pro_miconwrite(const unsigned char *buf
, int count
)
215 while (!(readl(UART1_REG(LSR
)) & UART_LSR_THRE
))
217 writel(buf
[i
++], UART1_REG(TX
));
223 static int kurobox_pro_miconsend(const unsigned char *data
, int count
)
226 unsigned char checksum
= 0;
227 unsigned char recv_buf
[40];
228 unsigned char send_buf
[40];
229 unsigned char correct_ack
[3];
232 /* Generate checksum */
233 for (i
= 0; i
< count
; i
++)
238 kurobox_pro_miconwrite(data
, count
);
241 kurobox_pro_miconwrite(&checksum
, 1);
243 if (kurobox_pro_miconread(recv_buf
, sizeof(recv_buf
)) <= 3) {
244 printk(KERN_ERR
">%s: receive failed.\n", __func__
);
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
));
250 /* make dummy reads */
252 kurobox_pro_miconread(recv_buf
, sizeof(recv_buf
));
254 /* Generate expected ack */
255 correct_ack
[0] = 0x01;
256 correct_ack
[1] = data
[1];
257 correct_ack
[2] = 0x00;
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]);
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 */
278 /* Received NAK or illegal Data */
279 printk(KERN_ERR
">%s: Error : NAK or Illegal Data "
280 "Received\n", __func__
);
284 /* Interval for next command */
290 static void kurobox_pro_power_off(void)
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));
298 pr_info("%s: triggering power-off...\n", __func__
);
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
));
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
));
315 /*****************************************************************************
317 ****************************************************************************/
318 static unsigned int kurobox_pro_mpp_modes
[] __initdata
= {
321 MPP2_GPIO
, /* GPIO Micon */
322 MPP3_GPIO
, /* GPIO Rtc */
325 MPP6_NAND
, /* NAND Flash REn */
326 MPP7_NAND
, /* NAND Flash WEn */
331 MPP12_SATA_LED
, /* SATA 0 presence */
332 MPP13_SATA_LED
, /* SATA 1 presence */
333 MPP14_SATA_LED
, /* SATA 0 active */
334 MPP15_SATA_LED
, /* SATA 1 active */
335 MPP16_UART
, /* UART1 RXD */
336 MPP17_UART
, /* UART1 TXD */
337 MPP18_UART
, /* UART1 CTSn */
338 MPP19_UART
, /* UART1 RTSn */
342 static void __init
kurobox_pro_init(void)
345 * Setup basic Orion functions. Need to be called early.
349 orion5x_mpp_conf(kurobox_pro_mpp_modes
);
352 * Configure peripherals.
354 orion5x_ehci0_init();
355 orion5x_ehci1_init();
356 orion5x_eth_init(&kurobox_pro_eth_data
);
358 orion5x_sata_init(&kurobox_pro_sata_data
);
359 orion5x_uart0_init();
360 orion5x_uart1_init();
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
);
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
);
373 i2c_register_board_info(0, &kurobox_pro_i2c_rtc
, 1);
375 /* register Kurobox Pro specific power-off method */
376 pm_power_off
= kurobox_pro_power_off
;
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 .init_machine
= kurobox_pro_init
,
384 .map_io
= orion5x_map_io
,
385 .init_early
= orion5x_init_early
,
386 .init_irq
= orion5x_init_irq
,
387 .timer
= &orion5x_timer
,
388 .fixup
= tag_fixup_mem32
,
392 #ifdef CONFIG_MACH_LINKSTATION_PRO
393 MACHINE_START(LINKSTATION_PRO
, "Buffalo Linkstation Pro/Live")
394 /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
395 .atag_offset
= 0x100,
396 .init_machine
= kurobox_pro_init
,
397 .map_io
= orion5x_map_io
,
398 .init_early
= orion5x_init_early
,
399 .init_irq
= orion5x_init_irq
,
400 .timer
= &orion5x_timer
,
401 .fixup
= tag_fixup_mem32
,