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9f00409a KG |
1 | /* |
2 | * Copyright 2009 Freescale Semiconductor, Inc | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License as | |
6 | * published by the Free Software Foundation; either version 2 of | |
7 | * the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
17 | * MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <common.h> | |
21 | #include <asm/processor.h> | |
22 | #include <asm/mmu.h> | |
23 | #include <asm/fsl_law.h> | |
24 | ||
25 | DECLARE_GLOBAL_DATA_PTR; | |
26 | ||
a880cf3e KG |
27 | #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) |
28 | #ifdef CONFIG_FSL_CORENET | |
29 | static void setup_ccsrbar(void) | |
30 | { | |
31 | u32 temp; | |
32 | volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); | |
33 | volatile ccsr_local_t *ccm; | |
34 | ||
35 | /* | |
36 | * We can't call set_law() because we haven't moved | |
37 | * CCSR yet. | |
38 | */ | |
39 | ccm = (void *)ccsr_virt; | |
40 | ||
41 | out_be32(&ccm->law[0].lawbarh, | |
42 | (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); | |
43 | out_be32(&ccm->law[0].lawbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); | |
44 | out_be32(&ccm->law[0].lawar, | |
45 | LAW_EN | (0x1e << 20) | LAW_SIZE_4K); | |
46 | ||
47 | in_be32((u32 *)(ccsr_virt + 0)); | |
48 | in_be32((u32 *)(ccsr_virt + 1)); | |
49 | isync(); | |
50 | ||
51 | ccm = (void *)CONFIG_SYS_CCSRBAR; | |
52 | /* Now use the temporary LAW to move CCSR */ | |
53 | out_be32(&ccm->ccsrbarh, (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); | |
54 | out_be32(&ccm->ccsrbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); | |
55 | out_be32(&ccm->ccsrar, CCSRAR_C); | |
56 | temp = in_be32(&ccm->ccsrar); | |
57 | disable_law(0); | |
58 | } | |
59 | #else | |
60 | static void setup_ccsrbar(void) | |
61 | { | |
62 | u32 temp; | |
63 | volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); | |
64 | ||
65 | temp = in_be32(ccsr_virt); | |
66 | out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); | |
67 | temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); | |
68 | } | |
69 | #endif | |
70 | #endif | |
71 | ||
9f00409a KG |
72 | /* We run cpu_init_early_f in AS = 1 */ |
73 | void cpu_init_early_f(void) | |
74 | { | |
75 | u32 mas0, mas1, mas2, mas3, mas7; | |
76 | int i; | |
77 | ||
78 | /* Pointer is writable since we allocated a register for it */ | |
79 | gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); | |
80 | ||
81 | /* | |
82 | * Clear initial global data | |
83 | * we don't use memset so we can share this code with NAND_SPL | |
84 | */ | |
85 | for (i = 0; i < sizeof(gd_t); i++) | |
86 | ((char *)gd)[i] = 0; | |
87 | ||
88 | mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0); | |
89 | mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K); | |
90 | mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G); | |
91 | mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR); | |
92 | mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS); | |
93 | ||
94 | write_tlb(mas0, mas1, mas2, mas3, mas7); | |
95 | ||
96 | /* set up CCSR if we want it moved */ | |
97 | #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) | |
a880cf3e KG |
98 | mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1); |
99 | /* mas1 is the same as above */ | |
100 | mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G); | |
101 | mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR); | |
102 | mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT); | |
103 | ||
104 | write_tlb(mas0, mas1, mas2, mas3, mas7); | |
105 | ||
106 | setup_ccsrbar(); | |
9f00409a KG |
107 | #endif |
108 | ||
109 | init_laws(); | |
110 | invalidate_tlb(0); | |
111 | init_tlbs(); | |
112 | } |