1 /*
2 * (C) Copyright 2003
3 * Thomas.Lange@corelatus.se
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8 #include <common.h>
9 #include <command.h>
10 #include <asm/au1x00.h>
11 #include <asm/mipsregs.h>
12 #include <asm/io.h>
13
initdram(int board_type)14 phys_size_t initdram(int board_type)
15 {
16 /* Sdram is setup by assembler code */
17 /* If memory could be changed, we should return the true value here */
18 return 64*1024*1024;
19 }
20
21 #define BCSR_PCMCIA_PC0DRVEN 0x0010
22 #define BCSR_PCMCIA_PC0RST 0x0080
23
24 /* In arch/mips/cpu/cpu.c */
25 void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
26
checkboard(void)27 int checkboard (void)
28 {
29 #if defined(CONFIG_IDE_PCMCIA) && 0
30 u16 status;
31 #endif
32 /* volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10); */
33 volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
34 u32 proc_id;
35
36 *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
37
38 proc_id = read_c0_prid();
39
40 switch (proc_id >> 24) {
41 case 0:
42 puts ("Board: Pb1000\n");
43 printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n",
44 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
45 break;
46 case 1:
47 puts ("Board: Pb1500\n");
48 printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n",
49 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
50 break;
51 case 2:
52 puts ("Board: Pb1100\n");
53 printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n",
54 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
55 break;
56 default:
57 printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id);
58 }
59
60 set_io_port_base(0);
61
62 #if defined(CONFIG_IDE_PCMCIA) && 0
63 /* Enable 3.3 V on slot 0 ( VCC )
64 No 5V */
65 status = 4;
66 *pcmcia_bcsr = status;
67
68 status |= BCSR_PCMCIA_PC0DRVEN;
69 *pcmcia_bcsr = status;
70 au_sync();
71
72 udelay(300*1000);
73
74 status |= BCSR_PCMCIA_PC0RST;
75 *pcmcia_bcsr = status;
76 au_sync();
77
78 udelay(100*1000);
79
80 /* PCMCIA is on a 36 bit physical address.
81 We need to map it into a 32 bit addresses */
82
83 #if 0
84 /* We dont need theese unless we run whole pcmcia package */
85 write_one_tlb(20, /* index */
86 0x01ffe000, /* Pagemask, 16 MB pages */
87 CONFIG_SYS_PCMCIA_IO_BASE, /* Hi */
88 0x3C000017, /* Lo0 */
89 0x3C200017); /* Lo1 */
90
91 write_one_tlb(21, /* index */
92 0x01ffe000, /* Pagemask, 16 MB pages */
93 CONFIG_SYS_PCMCIA_ATTR_BASE, /* Hi */
94 0x3D000017, /* Lo0 */
95 0x3D200017); /* Lo1 */
96 #endif /* 0 */
97 write_one_tlb(22, /* index */
98 0x01ffe000, /* Pagemask, 16 MB pages */
99 CONFIG_SYS_PCMCIA_MEM_ADDR, /* Hi */
100 0x3E000017, /* Lo0 */
101 0x3E200017); /* Lo1 */
102 #endif /* CONFIG_IDE_PCMCIA */
103
104 return 0;
105 }
106