1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* Copyright 2009 Freescale Semiconductor, Inc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/fsl_law.h>
DECLARE_GLOBAL_DATA_PTR;
#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS)
#ifdef CONFIG_FSL_CORENET
static void setup_ccsrbar(void)
{
u32 temp;
volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
volatile ccsr_local_t *ccm;
/*
* We can't call set_law() because we haven't moved
* CCSR yet.
*/
ccm = (void *)ccsr_virt;
out_be32(&ccm->law[0].lawbarh,
(u64)CONFIG_SYS_CCSRBAR_PHYS >> 32);
out_be32(&ccm->law[0].lawbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS);
out_be32(&ccm->law[0].lawar,
LAW_EN | (0x1e << 20) | LAW_SIZE_4K);
in_be32((u32 *)(ccsr_virt + 0));
in_be32((u32 *)(ccsr_virt + 1));
isync();
ccm = (void *)CONFIG_SYS_CCSRBAR;
/* Now use the temporary LAW to move CCSR */
out_be32(&ccm->ccsrbarh, (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32);
out_be32(&ccm->ccsrbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS);
out_be32(&ccm->ccsrar, CCSRAR_C);
temp = in_be32(&ccm->ccsrar);
disable_law(0);
}
#else
static void setup_ccsrbar(void)
{
u32 temp;
volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
temp = in_be32(ccsr_virt);
out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12);
temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR);
}
#endif
#endif
/* We run cpu_init_early_f in AS = 1 */
void cpu_init_early_f(void)
{
u32 mas0, mas1, mas2, mas3, mas7;
int i;
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
/*
* Clear initial global data
* we don't use memset so we can share this code with NAND_SPL
*/
for (i = 0; i < sizeof(gd_t); i++)
((char *)gd)[i] = 0;
mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0);
mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G);
mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS);
write_tlb(mas0, mas1, mas2, mas3, mas7);
/* set up CCSR if we want it moved */
#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS)
mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
/* mas1 is the same as above */
mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G);
mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR);
mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT);
write_tlb(mas0, mas1, mas2, mas3, mas7);
setup_ccsrbar();
#endif
init_laws();
invalidate_tlb(0);
init_tlbs();
}
|
