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 54static 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 70static 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 76static 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 84static 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 98static struct physmap_flash_data kurobox_pro_nor_flash_data = { 99 .width = 1, 100}; 101 102static 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 108static 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 122static 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 139static 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 147static 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 157subsys_initcall(kurobox_pro_pci_init); 158 159/***************************************************************************** 160 * Ethernet 161 ****************************************************************************/ 162 163static 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 ****************************************************************************/ 170static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = { 171 I2C_BOARD_INFO("rs5c372a", 0x32), 172}; 173 174/***************************************************************************** 175 * SATA 176 ****************************************************************************/ 177static 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 187static 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 210static 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 223static 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 290static 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 ****************************************************************************/ 318static 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 342static 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 380MACHINE_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, 390MACHINE_END 391#endif 392 393#ifdef CONFIG_MACH_LINKSTATION_PRO 394MACHINE_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, 404MACHINE_END 405#endif 406