stxxtc.h 18 KB

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  1. /*
  2. * (C) Copyright 2000-2004
  3. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. /*
  24. * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
  25. * U-Boot port on STx XTc 8xx board
  26. * Mostly copied from Panto's NETTA2 board.
  27. */
  28. #ifndef __CONFIG_H
  29. #define __CONFIG_H
  30. /*
  31. * High Level Configuration Options
  32. * (easy to change)
  33. */
  34. #define CONFIG_MPC875 1 /* This is a MPC875 CPU */
  35. #define CONFIG_STXXTC 1 /* ...on a STx XTc board */
  36. #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
  37. #undef CONFIG_8xx_CONS_SMC2
  38. #undef CONFIG_8xx_CONS_NONE
  39. #define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */
  40. #define CONFIG_XIN 10000000 /* 10 MHz input xtal */
  41. /* Select one of few clock rates defined later in this file.
  42. */
  43. /* #define MPC8XX_HZ 50000000 */
  44. #define MPC8XX_HZ 66666666
  45. #define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ
  46. #if 0
  47. #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
  48. #else
  49. #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
  50. #endif
  51. #undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */
  52. #undef CONFIG_BOOTARGS
  53. #define CONFIG_BOOTCOMMAND \
  54. "tftpboot; " \
  55. "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
  56. "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
  57. "bootm"
  58. #define CONFIG_AUTOSCRIPT
  59. #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
  60. #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
  61. #undef CONFIG_WATCHDOG /* watchdog disabled */
  62. #define CONFIG_STATUS_LED 1 /* Status LED enabled */
  63. #define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */
  64. #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE | CONFIG_BOOTP_NISDOMAIN)
  65. #undef CONFIG_MAC_PARTITION
  66. #undef CONFIG_DOS_PARTITION
  67. #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
  68. #define CONFIG_NET_MULTI 1 /* the only way to get the FEC in */
  69. #define FEC_ENET 1 /* eth.c needs it that way... */
  70. #undef CFG_DISCOVER_PHY
  71. #define CONFIG_MII 1
  72. #undef CONFIG_RMII
  73. #define CONFIG_ETHER_ON_FEC1 1
  74. #define CONFIG_FEC1_PHY 1 /* phy address of FEC */
  75. #undef CONFIG_FEC1_PHY_NORXERR
  76. #define CONFIG_ETHER_ON_FEC2 1
  77. #define CONFIG_FEC2_PHY 3
  78. #undef CONFIG_FEC2_PHY_NORXERR
  79. #define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */
  80. #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
  81. CFG_CMD_NAND | \
  82. CFG_CMD_DHCP | \
  83. CFG_CMD_PING | \
  84. CFG_CMD_MII | \
  85. CFG_CMD_NFS)
  86. #define CONFIG_BOARD_EARLY_INIT_F 1
  87. #define CONFIG_MISC_INIT_R
  88. /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
  89. #include <cmd_confdefs.h>
  90. /*
  91. * Miscellaneous configurable options
  92. */
  93. #define CFG_LONGHELP /* undef to save memory */
  94. #define CFG_PROMPT "xtc> " /* Monitor Command Prompt */
  95. #define CFG_HUSH_PARSER 1
  96. #define CFG_PROMPT_HUSH_PS2 "> "
  97. #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  98. #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
  99. #else
  100. #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
  101. #endif
  102. #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
  103. #define CFG_MAXARGS 16 /* max number of command args */
  104. #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
  105. #define CFG_MEMTEST_START 0x0300000 /* memtest works on */
  106. #define CFG_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */
  107. #define CFG_LOAD_ADDR 0x100000 /* default load address */
  108. #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
  109. #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
  110. /*
  111. * Low Level Configuration Settings
  112. * (address mappings, register initial values, etc.)
  113. * You should know what you are doing if you make changes here.
  114. */
  115. /*-----------------------------------------------------------------------
  116. * Internal Memory Mapped Register
  117. */
  118. #define CFG_IMMR 0xFF000000
  119. /*-----------------------------------------------------------------------
  120. * Definitions for initial stack pointer and data area (in DPRAM)
  121. */
  122. #define CFG_INIT_RAM_ADDR CFG_IMMR
  123. #define CFG_INIT_RAM_END 0x3000 /* End of used area in DPRAM */
  124. #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
  125. #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
  126. #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
  127. /*-----------------------------------------------------------------------
  128. * Start addresses for the final memory configuration
  129. * (Set up by the startup code)
  130. * Please note that CFG_SDRAM_BASE _must_ start at 0
  131. */
  132. #define CFG_SDRAM_BASE 0x00000000
  133. #define CFG_FLASH_BASE 0x40000000
  134. #if defined(DEBUG)
  135. #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
  136. #else
  137. #define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
  138. #endif
  139. /* yes this is weird, I know :) */
  140. #define CFG_MONITOR_BASE (CFG_FLASH_BASE | 0x00F00000)
  141. #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
  142. #define CFG_RESET_ADDRESS 0x80000000
  143. /*
  144. * For booting Linux, the board info and command line data
  145. * have to be in the first 8 MB of memory, since this is
  146. * the maximum mapped by the Linux kernel during initialization.
  147. */
  148. #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
  149. /*-----------------------------------------------------------------------
  150. * FLASH organization
  151. */
  152. #define CFG_ENV_IS_IN_FLASH 1
  153. #define CFG_ENV_SECT_SIZE 0x10000
  154. #define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x00000000)
  155. #define CFG_ENV_OFFSET 0
  156. #define CFG_ENV_SIZE 0x4000
  157. #define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + 0x00010000)
  158. #define CFG_ENV_OFFSET_REDUND 0
  159. #define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
  160. #define CFG_FLASH_CFI 1
  161. #define CFG_FLASH_CFI_DRIVER 1
  162. #undef CFG_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */
  163. #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
  164. #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
  165. #define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE, CFG_FLASH_BASE + 0x2000000 }
  166. #define CFG_FLASH_PROTECTION
  167. /*-----------------------------------------------------------------------
  168. * Cache Configuration
  169. */
  170. #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
  171. #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  172. #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
  173. #endif
  174. /*-----------------------------------------------------------------------
  175. * SYPCR - System Protection Control 11-9
  176. * SYPCR can only be written once after reset!
  177. *-----------------------------------------------------------------------
  178. * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
  179. */
  180. #if defined(CONFIG_WATCHDOG)
  181. #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
  182. SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
  183. #else
  184. #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
  185. #endif
  186. /*-----------------------------------------------------------------------
  187. * SIUMCR - SIU Module Configuration 11-6
  188. *-----------------------------------------------------------------------
  189. * PCMCIA config., multi-function pin tri-state
  190. */
  191. #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E)
  192. /*-----------------------------------------------------------------------
  193. * TBSCR - Time Base Status and Control 11-26
  194. *-----------------------------------------------------------------------
  195. * Clear Reference Interrupt Status, Timebase freezing enabled
  196. */
  197. #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
  198. /*-----------------------------------------------------------------------
  199. * RTCSC - Real-Time Clock Status and Control Register 11-27
  200. *-----------------------------------------------------------------------
  201. */
  202. #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
  203. /*-----------------------------------------------------------------------
  204. * PISCR - Periodic Interrupt Status and Control 11-31
  205. *-----------------------------------------------------------------------
  206. * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
  207. */
  208. #define CFG_PISCR (PISCR_PS | PISCR_PITF)
  209. /*-----------------------------------------------------------------------
  210. * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
  211. *-----------------------------------------------------------------------
  212. * Reset PLL lock status sticky bit, timer expired status bit and timer
  213. * interrupt status bit
  214. *
  215. */
  216. #if CONFIG_XIN == 10000000
  217. #if MPC8XX_HZ == 50000000
  218. #define CFG_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \
  219. (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
  220. PLPRCR_TEXPS)
  221. #elif MPC8XX_HZ == 66666666
  222. #define CFG_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \
  223. (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
  224. PLPRCR_TEXPS)
  225. #else
  226. #error unsupported CPU freq for XIN = 10MHz
  227. #endif
  228. #else
  229. #error unsupported freq for XIN (must be 10MHz)
  230. #endif
  231. /*
  232. *-----------------------------------------------------------------------
  233. * SCCR - System Clock and reset Control Register 15-27
  234. *-----------------------------------------------------------------------
  235. * Set clock output, timebase and RTC source and divider,
  236. * power management and some other internal clocks
  237. *
  238. * Note: When TBS == 0 the timebase is independent of current cpu clock.
  239. */
  240. #define SCCR_MASK SCCR_EBDF11
  241. #if MPC8XX_HZ > 66666666
  242. #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
  243. SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
  244. SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
  245. SCCR_DFALCD00 | SCCR_EBDF01)
  246. #else
  247. #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
  248. SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
  249. SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
  250. SCCR_DFALCD00)
  251. #endif
  252. /*-----------------------------------------------------------------------
  253. *
  254. *-----------------------------------------------------------------------
  255. *
  256. */
  257. /*#define CFG_DER 0x2002000F*/
  258. #define CFG_DER 0
  259. /*
  260. * Init Memory Controller:
  261. *
  262. * BR0/1 and OR0/1 (FLASH)
  263. */
  264. #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
  265. #define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */
  266. /* used to re-map FLASH both when starting from SRAM or FLASH:
  267. * restrict access enough to keep SRAM working (if any)
  268. * but not too much to meddle with FLASH accesses
  269. */
  270. #define FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */
  271. #define CFG_REMAP_OR_AM 0x80000000
  272. #define CFG_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))
  273. /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
  274. #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX)
  275. #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
  276. #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
  277. #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
  278. #define CFG_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CFG_OR_TIMING_FLASH)
  279. #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
  280. /*
  281. * BR4 and OR4 (SDRAM)
  282. *
  283. */
  284. #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
  285. #define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */
  286. /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
  287. #define CFG_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS)
  288. #define CFG_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CFG_OR_TIMING_SDRAM)
  289. #define CFG_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V)
  290. /*
  291. * Memory Periodic Timer Prescaler
  292. */
  293. /*
  294. * Memory Periodic Timer Prescaler
  295. *
  296. * The Divider for PTA (refresh timer) configuration is based on an
  297. * example SDRAM configuration (64 MBit, one bank). The adjustment to
  298. * the number of chip selects (NCS) and the actually needed refresh
  299. * rate is done by setting MPTPR.
  300. *
  301. * PTA is calculated from
  302. * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
  303. *
  304. * gclk CPU clock (not bus clock!)
  305. * Trefresh Refresh cycle * 4 (four word bursts used)
  306. *
  307. * 4096 Rows from SDRAM example configuration
  308. * 1000 factor s -> ms
  309. * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
  310. * 4 Number of refresh cycles per period
  311. * 64 Refresh cycle in ms per number of rows
  312. * --------------------------------------------
  313. * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
  314. *
  315. * 50 MHz => 50.000.000 / Divider = 98
  316. * 66 Mhz => 66.000.000 / Divider = 129
  317. * 80 Mhz => 80.000.000 / Divider = 156
  318. */
  319. #define CFG_MAMR_PTA 234
  320. /*
  321. * For 16 MBit, refresh rates could be 31.3 us
  322. * (= 64 ms / 2K = 125 / quad bursts).
  323. * For a simpler initialization, 15.6 us is used instead.
  324. *
  325. * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
  326. * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
  327. */
  328. #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
  329. #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
  330. /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
  331. #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
  332. #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
  333. /*
  334. * MAMR settings for SDRAM
  335. */
  336. /* 8 column SDRAM */
  337. #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  338. MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
  339. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  340. /* 9 column SDRAM */
  341. #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
  342. MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
  343. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  344. /*
  345. * Internal Definitions
  346. *
  347. * Boot Flags
  348. */
  349. #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
  350. #define BOOTFLAG_WARM 0x02 /* Software reboot */
  351. #define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */
  352. /****************************************************************/
  353. #define NAND_SIZE 0x00010000 /* 64K */
  354. #define NAND_BASE 0xF1000000
  355. /****************************************************************/
  356. /* NAND */
  357. #define CFG_NAND_LEGACY
  358. #define CFG_NAND_BASE NAND_BASE
  359. #define CONFIG_MTD_NAND_ECC_JFFS2
  360. #define CONFIG_MTD_NAND_VERIFY_WRITE
  361. #define CONFIG_MTD_NAND_UNSAFE
  362. #define CFG_MAX_NAND_DEVICE 1
  363. #undef NAND_NO_RB
  364. #define SECTORSIZE 512
  365. #define ADDR_COLUMN 1
  366. #define ADDR_PAGE 2
  367. #define ADDR_COLUMN_PAGE 3
  368. #define NAND_ChipID_UNKNOWN 0x00
  369. #define NAND_MAX_FLOORS 1
  370. #define NAND_MAX_CHIPS 1
  371. /* ALE = PC15, CLE = PB23, CE = PA7, F_RY_BY = PA6 */
  372. #define NAND_DISABLE_CE(nand) \
  373. do { \
  374. (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) |= (1 << (15 - 7)); \
  375. } while(0)
  376. #define NAND_ENABLE_CE(nand) \
  377. do { \
  378. (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) &= ~(1 << (15 - 7)); \
  379. } while(0)
  380. #define NAND_CTL_CLRALE(nandptr) \
  381. do { \
  382. (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) &= ~(1 << (15 - 15)); \
  383. } while(0)
  384. #define NAND_CTL_SETALE(nandptr) \
  385. do { \
  386. (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) |= (1 << (15 - 15)); \
  387. } while(0)
  388. #define NAND_CTL_CLRCLE(nandptr) \
  389. do { \
  390. (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) &= ~(1 << (31 - 23)); \
  391. } while(0)
  392. #define NAND_CTL_SETCLE(nandptr) \
  393. do { \
  394. (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) |= (1 << (31 - 23)); \
  395. } while(0)
  396. #ifndef NAND_NO_RB
  397. #define NAND_WAIT_READY(nand) \
  398. do { \
  399. int _tries = 0; \
  400. while ((((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat & (1 << (15 - 6))) == 0) \
  401. if (++_tries > 100000) \
  402. break; \
  403. } while (0)
  404. #else
  405. #define NAND_WAIT_READY(nand) udelay(12)
  406. #endif
  407. #define WRITE_NAND_COMMAND(d, adr) \
  408. do { \
  409. *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
  410. } while(0)
  411. #define WRITE_NAND_ADDRESS(d, adr) \
  412. do { \
  413. *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
  414. } while(0)
  415. #define WRITE_NAND(d, adr) \
  416. do { \
  417. *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \
  418. } while(0)
  419. #define READ_NAND(adr) \
  420. ((unsigned char)(*(volatile unsigned char *)(unsigned long)(adr)))
  421. /*****************************************************************************/
  422. #define CFG_DIRECT_FLASH_TFTP
  423. #define CFG_DIRECT_NAND_TFTP
  424. /*****************************************************************************/
  425. /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
  426. * CxOE and CxRESET. We use the CxOE.
  427. */
  428. #define STATUS_LED_BIT 0x00000080 /* bit 24 */
  429. #define STATUS_LED_PERIOD (CFG_HZ / 2)
  430. #define STATUS_LED_STATE STATUS_LED_BLINKING
  431. #define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
  432. #define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
  433. #ifndef __ASSEMBLY__
  434. /* LEDs */
  435. /* led_id_t is unsigned int mask */
  436. typedef unsigned int led_id_t;
  437. #define __led_toggle(_msk) \
  438. do { \
  439. ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
  440. } while(0)
  441. #define __led_set(_msk, _st) \
  442. do { \
  443. if ((_st)) \
  444. ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \
  445. else \
  446. ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
  447. } while(0)
  448. #define __led_init(msk, st) __led_set(msk, st)
  449. #endif
  450. /******************************************************************************/
  451. #define CFG_CONSOLE_IS_IN_ENV 1
  452. #define CFG_CONSOLE_OVERWRITE_ROUTINE 1
  453. #define CFG_CONSOLE_ENV_OVERWRITE 1
  454. /******************************************************************************/
  455. /* use board specific hardware */
  456. #undef CONFIG_WATCHDOG /* watchdog disabled */
  457. #define CONFIG_HW_WATCHDOG
  458. #define CONFIG_SHOW_ACTIVITY
  459. /*****************************************************************************/
  460. #define CONFIG_AUTO_COMPLETE 1
  461. #define CONFIG_CRC32_VERIFY 1
  462. #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1
  463. /*****************************************************************************/
  464. /* pass open firmware flat tree */
  465. #define CONFIG_OF_FLAT_TREE 1
  466. /* maximum size of the flat tree (8K) */
  467. #define OF_FLAT_TREE_MAX_SIZE 8192
  468. #define OF_CPU "PowerPC,MPC870@0"
  469. #define OF_TBCLK (MPC8XX_HZ / 16)
  470. #define CONFIG_OF_HAS_BD_T 1
  471. #define CONFIG_OF_HAS_UBOOT_ENV 1
  472. #endif /* __CONFIG_H */