5 * Main board-specific routines for Wind River PPMC 7xx/74xx board.
7 * By Richard Danter (richard.danter@windriver.com)
8 * Copyright (C) 2005 Wind River Systems
16 /* Define some MPC107 (memory controller) registers */
17 #define MPC107_EUMB_GCR 0xfce41020
18 #define MPC107_EUMB_IACKR 0xfce600a0
21 /* Function prototypes */
22 extern void _start(void);
28 * This function normally initialises the (S)DRAM of the system. For this board
29 * the SDRAM was already initialised by board_asm_init (see init.S) so we just
30 * return the size of RAM.
32 phys_size_t initdram( int board_type )
34 return CONFIG_SYS_SDRAM_SIZE;
41 * This is called after U-Boot has been copied from Flash/ROM to RAM. It gives
42 * us an opportunity to do some additional setup before the rest of the system
43 * is initialised. We don't need to do anything, so we just call board_init_r()
44 * which should never return.
46 void after_reloc( ulong dest_addr, gd_t* gd )
48 /* Jump to the main U-Boot board init code */
49 board_init_r( gd, dest_addr );
56 * We could do some board level checks here, such as working out what version
57 * it is, but for this board we simply display it's name (on the console).
59 int checkboard( void )
61 puts( "Board: Wind River PPMC 7xx/74xx\n" );
69 * Used for other setup which needs to be done late in the bring-up phase.
71 int misc_init_r( void )
73 /* Reset the EPIC and clear pending interrupts */
74 out32r(MPC107_EUMB_GCR, 0xa0000000);
75 while( in32r( MPC107_EUMB_GCR ) & 0x80000000 );
76 out32r( MPC107_EUMB_GCR, 0x20000000 );
77 while( in32r( MPC107_EUMB_IACKR ) != 0xff );
79 /* Enable the I-Cache */
89 * Shell command to reset the board.
91 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
93 printf( "Resetting...\n" );
95 /* Disabe and invalidate cache */
99 /* Jump to cold reset point (in RAM) */
102 /* Should never get here */
109 int board_eth_init(bd_t *bis)
111 return pci_eth_init(bis);