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Commit | Line | Data |
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f5e0d039 HS |
1 | /* |
2 | * ppmc7xx.c | |
3 | * --------- | |
b87dfd28 | 4 | * |
f5e0d039 | 5 | * Main board-specific routines for Wind River PPMC 7xx/74xx board. |
b87dfd28 | 6 | * |
f5e0d039 HS |
7 | * By Richard Danter (richard.danter@windriver.com) |
8 | * Copyright (C) 2005 Wind River Systems | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
12 | #include <command.h> | |
10efa024 | 13 | #include <netdev.h> |
f5e0d039 HS |
14 | |
15 | ||
16 | /* Define some MPC107 (memory controller) registers */ | |
17 | #define MPC107_EUMB_GCR 0xfce41020 | |
18 | #define MPC107_EUMB_IACKR 0xfce600a0 | |
19 | ||
20 | ||
21 | /* Function prototypes */ | |
22 | extern void unlock_ram_in_cache( void ); | |
23 | extern void _start_warm(void); | |
24 | ||
25 | ||
26 | /* | |
27 | * initdram() | |
b87dfd28 | 28 | * |
f5e0d039 HS |
29 | * This function normally initialises the (S)DRAM of the system. For this board |
30 | * the SDRAM was already initialised by board_asm_init (see init.S) so we just | |
31 | * return the size of RAM. | |
32 | */ | |
9973e3c6 | 33 | phys_size_t initdram( int board_type ) |
f5e0d039 | 34 | { |
6d0f6bcf | 35 | return CONFIG_SYS_SDRAM_SIZE; |
f5e0d039 HS |
36 | } |
37 | ||
38 | ||
39 | /* | |
40 | * after_reloc() | |
b87dfd28 | 41 | * |
f5e0d039 HS |
42 | * This is called after U-Boot has been copied from Flash/ROM to RAM. It gives |
43 | * us an opportunity to do some additional setup before the rest of the system | |
44 | * is initialised. We don't need to do anything, so we just call board_init_r() | |
45 | * which should never return. | |
b87dfd28 | 46 | */ |
f5e0d039 HS |
47 | void after_reloc( ulong dest_addr, gd_t* gd ) |
48 | { | |
49 | /* Jump to the main U-Boot board init code */ | |
50 | board_init_r( gd, dest_addr ); | |
51 | } | |
52 | ||
53 | ||
54 | /* | |
55 | * checkboard() | |
b87dfd28 | 56 | * |
f5e0d039 HS |
57 | * We could do some board level checks here, such as working out what version |
58 | * it is, but for this board we simply display it's name (on the console). | |
59 | */ | |
60 | int checkboard( void ) | |
61 | { | |
62 | puts( "Board: Wind River PPMC 7xx/74xx\n" ); | |
63 | return 0; | |
64 | } | |
65 | ||
66 | ||
67 | /* | |
68 | * misc_init_r | |
b87dfd28 | 69 | * |
f5e0d039 HS |
70 | * Used for other setup which needs to be done late in the bring-up phase. |
71 | */ | |
72 | int misc_init_r( void ) | |
73 | { | |
74 | /* Reset the EPIC and clear pending interrupts */ | |
75 | out32r(MPC107_EUMB_GCR, 0xa0000000); | |
76 | while( in32r( MPC107_EUMB_GCR ) & 0x80000000 ); | |
77 | out32r( MPC107_EUMB_GCR, 0x20000000 ); | |
78 | while( in32r( MPC107_EUMB_IACKR ) != 0xff ); | |
79 | ||
80 | /* Enable the I-Cache */ | |
81 | icache_enable(); | |
b87dfd28 | 82 | |
f5e0d039 HS |
83 | return 0; |
84 | } | |
85 | ||
86 | ||
87 | /* | |
88 | * do_reset() | |
b87dfd28 | 89 | * |
f5e0d039 HS |
90 | * Shell command to reset the board. |
91 | */ | |
92 | void do_reset( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] ) | |
93 | { | |
94 | printf( "Resetting...\n" ); | |
b87dfd28 | 95 | |
f5e0d039 HS |
96 | /* Disabe and invalidate cache */ |
97 | icache_disable(); | |
98 | dcache_disable(); | |
99 | ||
100 | /* Jump to warm start (in RAM) */ | |
101 | _start_warm(); | |
b87dfd28 | 102 | |
f5e0d039 HS |
103 | /* Should never get here */ |
104 | while(1); | |
105 | } | |
10efa024 BW |
106 | |
107 | int board_eth_init(bd_t *bis) | |
108 | { | |
109 | return pci_eth_init(bis); | |
110 | } |