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5da627a4 WD |
1 | /* |
2 | * (C) Copyright 2003 | |
3 | * Thomas.Lange@corelatus.se | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
5da627a4 WD |
6 | */ |
7 | ||
8 | #include <common.h> | |
9 | #include <command.h> | |
76ada5f8 | 10 | #include <mach/au1x00.h> |
5da627a4 | 11 | #include <asm/mipsregs.h> |
5c15010e | 12 | #include <asm/io.h> |
5da627a4 | 13 | |
088454cd SG |
14 | DECLARE_GLOBAL_DATA_PTR; |
15 | ||
f1683aa7 | 16 | int dram_init(void) |
5da627a4 WD |
17 | { |
18 | /* Sdram is setup by assembler code */ | |
19 | /* If memory could be changed, we should return the true value here */ | |
088454cd SG |
20 | gd->ram_size = MEM_SIZE * 1024 * 1024; |
21 | ||
22 | return 0; | |
5da627a4 WD |
23 | } |
24 | ||
25 | #define BCSR_PCMCIA_PC0DRVEN 0x0010 | |
26 | #define BCSR_PCMCIA_PC0RST 0x0080 | |
27 | ||
1e3827d9 | 28 | /* In arch/mips/cpu/cpu.c */ |
5da627a4 WD |
29 | void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 ); |
30 | ||
31 | int checkboard (void) | |
32 | { | |
c3d2b4b4 | 33 | #ifdef CONFIG_IDE_PCMCIA |
5da627a4 | 34 | u16 status; |
ff36fd85 | 35 | volatile u32 *pcmcia_bcsr = (u32*)(DB1XX0_BCSR_ADDR+0x10); |
c3d2b4b4 | 36 | #endif /* CONFIG_IDE_PCMCIA */ |
ff36fd85 | 37 | volatile u32 *phy = (u32*)(DB1XX0_BCSR_ADDR+0xC); |
5da627a4 WD |
38 | volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL; |
39 | u32 proc_id; | |
40 | ||
41 | *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */ | |
42 | ||
e2ad8426 | 43 | proc_id = read_c0_prid(); |
5da627a4 | 44 | |
a2663ea4 | 45 | switch (proc_id >> 24) { |
5da627a4 | 46 | case 0: |
a2663ea4 WD |
47 | puts ("Board: Merlot (DbAu1000)\n"); |
48 | printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n", | |
49 | (proc_id >> 8) & 0xFF, proc_id & 0xFF); | |
50 | break; | |
51 | case 1: | |
52 | puts ("Board: DbAu1500\n"); | |
53 | printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n", | |
54 | (proc_id >> 8) & 0xFF, proc_id & 0xFF); | |
55 | break; | |
56 | case 2: | |
57 | puts ("Board: DbAu1100\n"); | |
58 | printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n", | |
59 | (proc_id >> 8) & 0xFF, proc_id & 0xFF); | |
60 | break; | |
ff36fd85 WD |
61 | case 3: |
62 | puts ("Board: DbAu1550\n"); | |
63 | printf ("CPU: Au1550, id: 0x%02x, rev: 0x%02x\n", | |
64 | (proc_id >> 8) & 0xFF, proc_id & 0xFF); | |
65 | break; | |
5da627a4 | 66 | default: |
a2663ea4 | 67 | printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id); |
5da627a4 | 68 | } |
5c15010e JCPV |
69 | |
70 | set_io_port_base(0); | |
71 | ||
5da627a4 WD |
72 | #ifdef CONFIG_IDE_PCMCIA |
73 | /* Enable 3.3 V on slot 0 ( VCC ) | |
74 | No 5V */ | |
75 | status = 4; | |
76 | *pcmcia_bcsr = status; | |
77 | ||
78 | status |= BCSR_PCMCIA_PC0DRVEN; | |
79 | *pcmcia_bcsr = status; | |
80 | au_sync(); | |
81 | ||
82 | udelay(300*1000); | |
83 | ||
84 | status |= BCSR_PCMCIA_PC0RST; | |
85 | *pcmcia_bcsr = status; | |
86 | au_sync(); | |
87 | ||
88 | udelay(100*1000); | |
89 | ||
90 | /* PCMCIA is on a 36 bit physical address. | |
91 | We need to map it into a 32 bit addresses */ | |
92 | ||
93 | #if 0 | |
94 | /* We dont need theese unless we run whole pcmcia package */ | |
95 | write_one_tlb(20, /* index */ | |
96 | 0x01ffe000, /* Pagemask, 16 MB pages */ | |
6d0f6bcf | 97 | CONFIG_SYS_PCMCIA_IO_BASE, /* Hi */ |
5da627a4 WD |
98 | 0x3C000017, /* Lo0 */ |
99 | 0x3C200017); /* Lo1 */ | |
100 | ||
101 | write_one_tlb(21, /* index */ | |
102 | 0x01ffe000, /* Pagemask, 16 MB pages */ | |
6d0f6bcf | 103 | CONFIG_SYS_PCMCIA_ATTR_BASE, /* Hi */ |
5da627a4 WD |
104 | 0x3D000017, /* Lo0 */ |
105 | 0x3D200017); /* Lo1 */ | |
697037fe | 106 | #endif /* 0 */ |
5da627a4 WD |
107 | write_one_tlb(22, /* index */ |
108 | 0x01ffe000, /* Pagemask, 16 MB pages */ | |
6d0f6bcf | 109 | CONFIG_SYS_PCMCIA_MEM_ADDR, /* Hi */ |
5da627a4 WD |
110 | 0x3E000017, /* Lo0 */ |
111 | 0x3E200017); /* Lo1 */ | |
697037fe | 112 | #endif /* CONFIG_IDE_PCMCIA */ |
5da627a4 WD |
113 | |
114 | /* Release reset of ethernet PHY chips */ | |
115 | /* Always do this, because linux does not know about it */ | |
116 | *phy = 3; | |
117 | ||
118 | return 0; | |
5da627a4 | 119 | } |