QS850.h 20 KB

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  1. /*
  2. * (C) Copyright 2003
  3. * MuLogic B.V.
  4. *
  5. * (C) Copyright 2002
  6. * Simple Network Magic Corporation
  7. *
  8. * (C) Copyright 2000
  9. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  10. *
  11. * See file CREDITS for list of people who contributed to this
  12. * project.
  13. *
  14. * This program is free software; you can redistribute it and/or
  15. * modify it under the terms of the GNU General Public License as
  16. * published by the Free Software Foundation; either version 2 of
  17. * the License, or (at your option) any later version.
  18. *
  19. * This program is distributed in the hope that it will be useful,
  20. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22. * GNU General Public License for more details.
  23. *
  24. * You should have received a copy of the GNU General Public License
  25. * along with this program; if not, write to the Free Software
  26. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  27. * MA 02111-1307 USA
  28. */
  29. /*
  30. * board/config.h - configuration options, board specific
  31. */
  32. #ifndef __CONFIG_H
  33. #define __CONFIG_H
  34. /* various debug settings */
  35. #undef CONFIG_SYS_DEVICE_NULLDEV /* null device */
  36. #undef CONFIG_SILENT_CONSOLE /* silent console */
  37. #undef CONFIG_SYS_CONSOLE_INFO_QUIET /* silent console ? */
  38. #undef DEBUG_FLASH /* debug flash code */
  39. #undef FLASH_DEBUG /* debug fash code */
  40. #undef DEBUG_ENV /* debug environment code */
  41. #define CONFIG_SYS_DIRECT_FLASH_TFTP 1 /* allow direct tftp to flash */
  42. #define CONFIG_ENV_OVERWRITE 1 /* allow overwrite MAC address */
  43. /*
  44. * High Level Configuration Options
  45. * (easy to change)
  46. */
  47. #define CONFIG_MPC850 1 /* This is a MPC850 CPU */
  48. #define CONFIG_QS850 1 /* ...on a QS850 module */
  49. #define CONFIG_SCC2_ENET 1 /* SCC2 10BaseT ethernet */
  50. #define CONFIG_SYS_TEXT_BASE 0xFFF00000
  51. /* Select the target clock speed */
  52. #undef CONFIG_CLOCK_16MHZ /* cpu=16,777,216 Hz, mem=16Mhz */
  53. #undef CONFIG_CLOCK_33MHZ /* cpu=33,554,432 Hz, mem=33Mhz */
  54. #undef CONFIG_CLOCK_50MHZ /* cpu=49,971,200 Hz, mem=33Mhz */
  55. #define CONFIG_CLOCK_66MHZ 1 /* cpu=67,108,864 Hz, mem=66Mhz */
  56. #undef CONFIG_CLOCK_80MHZ /* cpu=79,986,688 Hz, mem=33Mhz */
  57. #ifdef CONFIG_CLOCK_16MHZ
  58. #define CONFIG_CLOCK_MULT 512
  59. #endif
  60. #ifdef CONFIG_CLOCK_33MHZ
  61. #define CONFIG_CLOCK_MULT 1024
  62. #endif
  63. #ifdef CONFIG_CLOCK_50MHZ
  64. #define CONFIG_CLOCK_MULT 1525
  65. #endif
  66. #ifdef CONFIG_CLOCK_66MHZ
  67. #define CONFIG_CLOCK_MULT 2048
  68. #endif
  69. #ifdef CONFIG_CLOCK_80MHZ
  70. #define CONFIG_CLOCK_MULT 2441
  71. #endif
  72. /* choose flash size, 4Mb or 8Mb */
  73. #define CONFIG_FLASH_4MB 1 /* board has 4Mb flash */
  74. #undef CONFIG_FLASH_8MB /* board has 8Mb flash */
  75. #define CONFIG_CLOCK_BASE 32768 /* Base clock input freq */
  76. #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
  77. #undef CONFIG_8xx_CONS_SMC2
  78. #undef CONFIG_8xx_CONS_NONE
  79. #define CONFIG_BAUDRATE 38400 /* console baudrate = 38.4kbps */
  80. #undef CONFIG_CLOCKS_IN_MHZ /* clocks passsed to Linux in MHz */
  81. /* Define default IP addresses */
  82. #define CONFIG_IPADDR 192.168.1.99 /* own ip address */
  83. #define CONFIG_SERVERIP 192.168.1.19 /* used for tftp (not nfs?) */
  84. /* message to say directly after booting */
  85. #define CONFIG_PREBOOT "echo '';" \
  86. "echo 'type:';" \
  87. "echo 'run boot_nfs to boot to NFS';" \
  88. "echo 'run boot_flash to boot to flash';" \
  89. "echo '';" \
  90. "echo 'run flash_rootfs to install a new rootfs';" \
  91. "echo 'run flash_env to clear the env sector';" \
  92. "echo 'run flash_rw to clear the rw fs';" \
  93. "echo 'run flash_uboot to install a new u-boot';" \
  94. "echo 'run flash_kernel to install a new kernel';"
  95. /* wait 5 seconds before executing CONFIG_BOOTCOMMAND */
  96. #define CONFIG_BOOTDELAY 5
  97. #define CONFIG_BOOTCOMMAND "run boot_nfs"
  98. #undef CONFIG_BOOTARGS /* made by set_nfs of set_flash */
  99. /* Our flash filesystem looks like this
  100. *
  101. * 4Mb board:
  102. * ffc0 0000 - ffeb ffff root filesystem (jffs2) (~3Mb)
  103. * ffec 0000 - ffed ffff read-write filesystem (ext2)
  104. * ffee 0000 - ffef ffff environment
  105. * fff0 0000 - fff1 ffff u-boot
  106. * fff2 0000 - ffff ffff linux kernel
  107. *
  108. * 8Mb board:
  109. * ff80 0000 - ffeb ffff root filesystem (jffs2) (~7Mb)
  110. * ffec 0000 - ffed ffff read-write filesystem (ext2)
  111. * ffee 0000 - ffef ffff environment
  112. * fff0 0000 - fff1 ffff u-boot
  113. * fff2 0000 - ffff ffff linux kernel
  114. *
  115. */
  116. /* environment for 4Mb board */
  117. #ifdef CONFIG_FLASH_4MB
  118. #define CONFIG_EXTRA_ENV_SETTINGS \
  119. "serial#=QS850\0" \
  120. "hostname=qs850\0" \
  121. "netdev=eth0\0" \
  122. "ethaddr=00:01:02:B4:36:56\0" \
  123. "rootpath=/exports/rootfs\0" \
  124. "mtdparts=mtdparts=phys:2816k(root),128k(rw),128k(env),128k(u-boot),-(kernel)\0" \
  125. /* fill in variables */ \
  126. "set_ip=setenv ip ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off\0" \
  127. "set_nfs=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath $ip init=/sbin/init $mtdparts\0" \
  128. "set_flash=setenv bootargs root=/dev/mtdblock1 ro $ip init=/sbin/init $mtdparts\0" \
  129. /* commands */ \
  130. "boot_nfs=run set_ip; run set_nfs; tftp 0x400000 /tftpboot/vmlinux.UBoot; bootm 0x400000\0" \
  131. "boot_flash=run set_ip; run set_flash; bootm fff20000\0" \
  132. /* reinstall flash parts */ \
  133. "flash_rootfs=protect off ffc00000 ffebffff; era ffc00000 ffebffff; tftp ffc00000 /tftpboot/rootfs.jffs2\0" \
  134. "flash_rw=protect off ffec0000 ffedffff; era ffec0000 ffedffff\0" \
  135. "flash_env=protect off ffee0000 ffefffff; era ffee0000 ffefffff\0" \
  136. "flash_uboot=protect off fff00000 fff1ffff; era fff00000 fff1ffff; tftp fff00000 /tftpboot/u-boot.4mb.bin\0" \
  137. "flash_kernel=protect off fff20000 ffffffff; era fff20000 ffffffff; tftp fff20000 /tftpboot/vmlinux.UBoot\0"
  138. #endif /* CONFIG_FLASH_4MB */
  139. /* environment for 8Mb board */
  140. #ifdef CONFIG_FLASH_8MB
  141. #define CONFIG_EXTRA_ENV_SETTINGS \
  142. "serial#=QS850\0" \
  143. "hostname=qs850\0" \
  144. "netdev=eth0\0" \
  145. "ethaddr=00:01:02:B4:36:56\0" \
  146. "rootpath=/exports/rootfs\0" \
  147. "mtdparts=mtdparts=phys:6912k(root),128k(rw),128k(env),128k(u-boot),-(kernel)\0" \
  148. /* fill in variables */ \
  149. "set_ip=setenv ip ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off\0" \
  150. "set_nfs=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath $ip init=/sbin/init $mtdparts\0" \
  151. "set_flash=setenv bootargs root=/dev/mtdblock1 ro $ip init=/sbin/init $mtdparts\0" \
  152. /* commands */ \
  153. "boot_nfs=run set_ip; run set_nfs; tftp 0x400000 /tftpboot/vmlinux.UBoot; bootm 0x400000\0" \
  154. "boot_flash=run set_ip; run set_flash; bootm fff20000\0" \
  155. /* reinstall flash parts */ \
  156. "flash_rootfs=protect off ff800000 ffebffff; era ff800000 ffebffff; tftp ff800000 /tftpboot/rootfs.jffs2\0" \
  157. "flash_rw=protect off ffec0000 ffedffff; era ffec0000 ffedffff\0" \
  158. "flash_env=protect off ffee0000 ffefffff; era ffee0000 ffefffff\0" \
  159. "flash_uboot=protect off fff00000 fff1ffff; era fff00000 fff1ffff; tftp fff00000 /tftpboot/u-boot.8mb.bin\0" \
  160. "flash_kernel=protect off fff20000 ffffffff; era fff20000 ffffffff; tftp fff20000 /tftpboot/vmlinux.UBoot\0"
  161. #endif /* CONFIG_FLASH_8MB */
  162. #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
  163. #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
  164. #undef CONFIG_WATCHDOG /* watchdog disabled */
  165. #undef CONFIG_STATUS_LED /* Status LED disabled */
  166. #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
  167. /*
  168. * BOOTP options
  169. */
  170. #define CONFIG_BOOTP_SUBNETMASK
  171. #define CONFIG_BOOTP_GATEWAY
  172. #define CONFIG_BOOTP_HOSTNAME
  173. #define CONFIG_BOOTP_BOOTPATH
  174. #define CONFIG_BOOTP_BOOTFILESIZE
  175. #undef CONFIG_MAC_PARTITION
  176. #undef CONFIG_DOS_PARTITION
  177. #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
  178. /*
  179. * Command line configuration.
  180. */
  181. #define CONFIG_CMD_BDI
  182. #define CONFIG_CMD_BOOTD
  183. #define CONFIG_CMD_CONSOLE
  184. #define CONFIG_CMD_DATE
  185. #define CONFIG_CMD_SAVEENV
  186. #define CONFIG_CMD_FLASH
  187. #define CONFIG_CMD_IMI
  188. #define CONFIG_CMD_IMMAP
  189. #define CONFIG_CMD_MEMORY
  190. #define CONFIG_CMD_NET
  191. #define CONFIG_CMD_RUN
  192. /*-----------------------------------------------------------------------
  193. * Environment variable storage is in FLASH, one sector before U-boot
  194. */
  195. #define CONFIG_ENV_IS_IN_FLASH 1
  196. #define CONFIG_ENV_SECT_SIZE 0x20000 /* 128Kb, one whole sector */
  197. #define CONFIG_ENV_SIZE 0x2000 /* 8kb */
  198. #define CONFIG_ENV_ADDR 0xffee0000 /* address of env sector */
  199. /*-----------------------------------------------------------------------
  200. * Miscellaneous configurable options
  201. */
  202. #define CONFIG_SYS_LONGHELP /* undef to save memory */
  203. #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
  204. #define CONFIG_SYS_HUSH_PARSER 1 /* use "hush" command parser */
  205. #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
  206. #if defined(CONFIG_CMD_KGDB)
  207. #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
  208. #else
  209. #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
  210. #endif
  211. #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
  212. #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
  213. #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
  214. #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works */
  215. #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
  216. #define CONFIG_SYS_LOAD_ADDR 0x400000 /* default load address */
  217. #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
  218. #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
  219. /*-----------------------------------------------------------------------
  220. * Low Level Configuration Settings
  221. * (address mappings, register initial values, etc.)
  222. * You should know what you are doing if you make changes here.
  223. */
  224. /*-----------------------------------------------------------------------
  225. * Internal Memory Mapped Register
  226. */
  227. #define CONFIG_SYS_IMMR 0xFF000000
  228. /*-----------------------------------------------------------------------
  229. * Definitions for initial stack pointer and data area (in DPRAM)
  230. */
  231. #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
  232. #define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
  233. #define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
  234. #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
  235. #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
  236. /*-----------------------------------------------------------------------
  237. * Start addresses for the final memory configuration
  238. * (Set up by the startup code)
  239. * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
  240. */
  241. #define CONFIG_SYS_SDRAM_BASE 0x00000000
  242. #define CONFIG_SYS_FLASH_BASE 0xFF800000 /* Allow an 8Mbyte window */
  243. #define FLASH_BASE0_4M_PRELIM 0xFFC00000 /* Base for 4M Flash */
  244. #define FLASH_BASE0_8M_PRELIM 0xFF800000 /* Base for 8M Flash */
  245. #define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
  246. #define CONFIG_SYS_MONITOR_BASE 0xFFF00000 /* U-boot location */
  247. #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
  248. /*
  249. * For booting Linux, the board info and command line data
  250. * have to be in the first 8 MB of memory, since this is
  251. * the maximum mapped by the Linux kernel during initialization.
  252. */
  253. #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
  254. /*-----------------------------------------------------------------------
  255. * TODO flash parameters
  256. * FLASH organization for Intel Strataflash
  257. */
  258. #undef CONFIG_SYS_FLASH_16BIT /* 32-bit wide flash memory */
  259. #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
  260. #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
  261. #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
  262. #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
  263. /*-----------------------------------------------------------------------
  264. * Cache Configuration
  265. */
  266. #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
  267. #if defined(CONFIG_CMD_KGDB)
  268. #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
  269. #endif
  270. /*-----------------------------------------------------------------------
  271. * SYPCR - System Protection Control 11-9
  272. * SYPCR can only be written once after reset!
  273. *-----------------------------------------------------------------------
  274. * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
  275. */
  276. #ifdef CONFIG_WATCHDOG
  277. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP)
  278. #else
  279. #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWRI | SYPCR_SWP)
  280. #endif
  281. /*-----------------------------------------------------------------------
  282. * SIUMCR - SIU Module Configuration 11-6
  283. *-----------------------------------------------------------------------
  284. */
  285. #define CONFIG_SYS_SIUMCR (SIUMCR_DLK | SIUMCR_DPC | SIUMCR_MPRE | SIUMCR_MLRC01 | SIUMCR_GB5E)
  286. /*-----------------------------------------------------------------------
  287. * TBSCR - Time Base Status and Control 11-26
  288. *-----------------------------------------------------------------------
  289. */
  290. #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
  291. /*-----------------------------------------------------------------------
  292. * RTCSC - Real-Time Clock Status and Control Register 11-27
  293. *-----------------------------------------------------------------------
  294. */
  295. #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
  296. /*-----------------------------------------------------------------------
  297. * PISCR - Periodic Interrupt Status and Control 11-31
  298. *-----------------------------------------------------------------------
  299. */
  300. #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
  301. /*-----------------------------------------------------------------------
  302. * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
  303. *-----------------------------------------------------------------------
  304. */
  305. /* MF (Multiplication Factor of SPLL) */
  306. /* Sets the QS850 to specified clock from 32KHz clock at EXTAL. */
  307. #define vPLPRCR_MF ((CONFIG_CLOCK_MULT+1) << 20)
  308. #define CONFIG_SYS_PLPRCR (vPLPRCR_MF | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST | PLPRCR_LOLRE)
  309. /*-----------------------------------------------------------------------
  310. * SCCR - System Clock and reset Control Register 15-27
  311. *-----------------------------------------------------------------------
  312. */
  313. #if defined(CONFIG_CLOCK_16MHZ) || defined(CONFIG_CLOCK_33MHZ) || defined(CONFIG_CLOCK_50MHZ)
  314. #define CONFIG_SYS_SCCR (SCCR_TBS | SCCR_EBDF00 | SCCR_DFBRG00)
  315. #define CONFIG_SYS_BRGCLK_PRESCALE 1
  316. #endif
  317. #if defined(CONFIG_CLOCK_66MHZ)
  318. #define CONFIG_SYS_SCCR (SCCR_TBS | SCCR_EBDF00 | SCCR_DFBRG01)
  319. #define CONFIG_SYS_BRGCLK_PRESCALE 4
  320. #endif
  321. #if defined(CONFIG_CLOCK_80MHZ)
  322. #define CONFIG_SYS_SCCR (SCCR_TBS | SCCR_EBDF01 | SCCR_DFBRG01)
  323. #define CONFIG_SYS_BRGCLK_PRESCALE 4
  324. #endif
  325. #define SCCR_MASK CONFIG_SYS_SCCR
  326. /*-----------------------------------------------------------------------
  327. * Debug Enable Register
  328. * 0x73E67C0F - All interrupts handled by BDM
  329. * 0x00824001 - Only interrupts needed by MWDebug.exe handled by BDM
  330. *-----------------------------------------------------------------------
  331. #define CONFIG_SYS_DER 0x73E67C0F
  332. #define CONFIG_SYS_DER 0x0082400F
  333. #-------------------------------------------------------------------------
  334. # Program the Debug Enable Register (DER). This register provides the user
  335. # with the reason for entering into the debug mode. We want all conditions
  336. # to end up as an exception. We don't want to enter into debug mode for
  337. # any condition. See the back of of the Development Support section of the
  338. # MPC860 User Manual for a description of this register.
  339. #-------------------------------------------------------------------------
  340. */
  341. #define CONFIG_SYS_DER 0
  342. /*-----------------------------------------------------------------------
  343. * Memory Controller Initialization Constants
  344. *-----------------------------------------------------------------------
  345. */
  346. /*
  347. * BR0 and OR0 (AMD dual FLASH devices)
  348. * Base address = 0xFFF0_0000 - 0xFFF7_FFFF (After relocation)
  349. */
  350. #define CONFIG_SYS_PRELIM_OR_AM
  351. #define CONFIG_SYS_OR_TIMING_FLASH
  352. /*
  353. *-----------------------------------------------------------------------
  354. * Base Register 0 (BR0): Bank 0 is assigned to the 8Mbyte (2M X 32)
  355. * flash that resides on the QS850.
  356. *-----------------------------------------------------------------------
  357. */
  358. /* BA (Base Address) = 0xFF80+0b for a total of 17 bits. 17 bit base addr */
  359. /* represents a minumum 32K block size. */
  360. #define vBR0_BA ((0xFF80 << 16) + (0 << 15))
  361. #define CONFIG_SYS_BR0_PRELIM (vBR0_BA | BR_V)
  362. /* AM (Address Mask) = 0xFF80+0b = We've masked the upper 9 bits */
  363. /* which defines a 8 Mbyte memory block. */
  364. #define vOR0_AM ((0xFF80 << 16) + (0 << 15))
  365. #if defined(CONFIG_CLOCK_50MHZ) || defined(CONFIG_CLOCK_80MHZ)
  366. /* 0101 = Add a 5 clock cycle wait state */
  367. #define CONFIG_SYS_OR0_PRELIM (vOR0_AM | OR_CSNT_SAM | 0R_ACS_DIV4 | OR_BI | OR_SCY_5_CLK)
  368. #endif
  369. #if defined(CONFIG_CLOCK_33MHZ) || defined(CONFIG_CLOCK_66MHZ)
  370. /* 0011 = Add a 3 clock cycle wait state */
  371. /* 29.8ns clock * (3 + 2) = 149ns cycle time */
  372. #define CONFIG_SYS_OR0_PRELIM (vOR0_AM | OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_3_CLK)
  373. #endif
  374. #if defined(CONFIG_CLOCK_16MHZ)
  375. /* 0010 = Add a 2 clock cycle wait state */
  376. #define CONFIG_SYS_OR0_PRELIM (vOR0_AM | OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_2_CLK)
  377. #endif
  378. /*
  379. * BR1 and OR1 (SDRAM)
  380. * Base Address = 0x00000000 - 0x00FF_FFFF (16M After relocation)
  381. * Base Address = 0x00000000 - 0x01FF_FFFF (32M After relocation)
  382. * Base Address = 0x00000000 - 0x03FF_FFFF (64M After relocation)
  383. * Base Address = 0x00000000 - 0x07FF_FFFF (128M After relocation)
  384. */
  385. #define SDRAM_BASE 0x00000000 /* SDRAM bank */
  386. #define SDRAM_PRELIM_OR_AM 0xF8000000 /* map max. 128 MB */
  387. /* AM (Address Mask) = 0xF800+0b = We've masked the upper 5 bits which
  388. * represents a 128 Mbyte block the DRAM in
  389. * this address base.
  390. */
  391. #define vOR1_AM ((0xF800 << 16) + (0 << 15))
  392. #define vBR1_BA ((0x0000 << 16) + (0 << 15))
  393. #define CONFIG_SYS_OR1 (vOR1_AM | OR_CSNT_SAM | OR_BI)
  394. #define CONFIG_SYS_BR1 (vBR1_BA | BR_MS_UPMA | BR_V)
  395. /* Machine A Mode Register */
  396. /* PTA Periodic Timer A */
  397. #if defined(CONFIG_CLOCK_80MHZ)
  398. #define vMAMR_PTA (19 << 24)
  399. #endif
  400. #if defined(CONFIG_CLOCK_66MHZ)
  401. #define vMAMR_PTA (16 << 24)
  402. #endif
  403. #if defined(CONFIG_CLOCK_50MHZ)
  404. #define vMAMR_PTA (195 << 24)
  405. #endif
  406. #if defined(CONFIG_CLOCK_33MHZ)
  407. #define vMAMR_PTA (131 << 24)
  408. #endif
  409. #if defined(CONFIG_CLOCK_16MHZ)
  410. #define vMAMR_PTA (65 << 24)
  411. #endif
  412. /* For boards with 16M of SDRAM */
  413. #define SDRAM_16M_MAX_SIZE 0x01000000 /* max 16MB SDRAM */
  414. #define CONFIG_SYS_16M_MAMR (vMAMR_PTA | MAMR_AMA_TYPE_0 | MAMR_DSA_2_CYCL | MAMR_G0CLA_A11 |\
  415. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  416. /* For boards with 32M of SDRAM */
  417. #define SDRAM_32M_MAX_SIZE 0x02000000 /* max 32MB SDRAM */
  418. #define CONFIG_SYS_32M_MAMR (vMAMR_PTA | MAMR_AMA_TYPE_1 | MAMR_DSA_2_CYCL | MAMR_G0CLA_A10 |\
  419. MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
  420. /* Memory Periodic Timer Prescaler Register */
  421. #if defined(CONFIG_CLOCK_66MHZ) || defined(CONFIG_CLOCK_80MHZ)
  422. /* Divide by 32 */
  423. #define CONFIG_SYS_MPTPR 0x02
  424. #endif
  425. #if defined(CONFIG_CLOCK_16MHZ) || defined(CONFIG_CLOCK_33MHZ) || defined(CONFIG_CLOCK_50MHZ)
  426. /* Divide by 16 */
  427. #define CONFIG_SYS_MPTPR 0x04
  428. #endif
  429. /*
  430. * BR2 and OR2 (Unused)
  431. * Base address = 0xF020_0000 - 0xF020_0FFF
  432. *
  433. */
  434. #define CONFIG_SYS_OR2_PRELIM 0xFFF00000
  435. #define CONFIG_SYS_BR2_PRELIM 0xF0200000
  436. /*
  437. * BR3 and OR3 (External Bus CS3)
  438. * Base address = 0xF030_0000 - 0xF030_0FFF
  439. *
  440. */
  441. #define CONFIG_SYS_OR3_PRELIM 0xFFF00000
  442. #define CONFIG_SYS_BR3_PRELIM 0xF0300000
  443. /*
  444. * BR4 and OR4 (External Bus CS3)
  445. * Base address = 0xF040_0000 - 0xF040_0FFF
  446. *
  447. */
  448. #define CONFIG_SYS_OR4_PRELIM 0xFFF00000
  449. #define CONFIG_SYS_BR4_PRELIM 0xF0400000
  450. /*
  451. * BR4 and OR4 (External Bus CS3)
  452. * Base address = 0xF050_0000 - 0xF050_0FFF
  453. *
  454. */
  455. #define CONFIG_SYS_OR5_PRELIM 0xFFF00000
  456. #define CONFIG_SYS_BR5_PRELIM 0xF0500000
  457. /*
  458. * BR6 and OR6 (Unused)
  459. * Base address = 0xF060_0000 - 0xF060_0FFF
  460. *
  461. */
  462. #define CONFIG_SYS_OR6_PRELIM 0xFFF00000
  463. #define CONFIG_SYS_BR6_PRELIM 0xF0600000
  464. /*
  465. * BR7 and OR7 (Unused)
  466. * Base address = 0xF070_0000 - 0xF070_0FFF
  467. *
  468. */
  469. #define CONFIG_SYS_OR7_PRELIM 0xFFF00000
  470. #define CONFIG_SYS_BR7_PRELIM 0xF0700000
  471. /*
  472. * Sanity checks
  473. */
  474. #if defined(CONFIG_SCC1_ENET) && defined(CONFIG_FEC_ENET)
  475. #error Both CONFIG_SCC1_ENET and CONFIG_FEC_ENET configured
  476. #endif
  477. #endif /* __CONFIG_H */