2 * Copyright 2008 Freescale Semiconductor.
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #include <asm/processor.h>
30 DECLARE_GLOBAL_DATA_PTR
;
34 return mfspr(SPRN_PIR
);
39 volatile ccsr_pic_t
*pic
= (void *)(CFG_MPC85xx_PIC_ADDR
);
40 out_be32(&pic
->pir
, 1 << nr
);
41 (void)in_be32(&pic
->pir
);
42 out_be32(&pic
->pir
, 0x0);
47 int cpu_status(int nr
)
49 u32
*table
, id
= get_my_id();
52 table
= (u32
*)get_spin_addr();
53 printf("table base @ 0x%08x\n", table
);
55 table
= (u32
*)get_spin_addr() + nr
* NUM_BOOT_ENTRY
;
56 printf("Running on cpu %d\n", id
);
58 printf("table @ 0x%08x:\n", table
);
59 printf(" addr - 0x%08x\n", table
[BOOT_ENTRY_ADDR_LOWER
]);
60 printf(" pir - 0x%08x\n", table
[BOOT_ENTRY_PIR
]);
61 printf(" r3 - 0x%08x\n", table
[BOOT_ENTRY_R3_LOWER
]);
62 printf(" r6 - 0x%08x\n", table
[BOOT_ENTRY_R6_LOWER
]);
68 static u8 boot_entry_map
[4] = {
75 int cpu_release(int nr
, int argc
, char *argv
[])
77 u32 i
, val
, *table
= (u32
*)get_spin_addr() + nr
* NUM_BOOT_ENTRY
;
80 if (nr
== get_my_id()) {
81 printf("Invalid to release the boot core.\n\n");
86 printf("Invalid number of arguments to release.\n\n");
90 #ifdef CFG_64BIT_STRTOUL
91 boot_addr
= simple_strtoull(argv
[0], NULL
, 16);
93 boot_addr
= simple_strtoul(argv
[0], NULL
, 16);
96 /* handle pir, r3, r6 */
97 for (i
= 1; i
< 4; i
++) {
98 if (argv
[i
][0] != '-') {
99 u8 entry
= boot_entry_map
[i
];
100 val
= simple_strtoul(argv
[i
], NULL
, 16);
105 table
[BOOT_ENTRY_ADDR_UPPER
] = (u32
)(boot_addr
>> 32);
106 table
[BOOT_ENTRY_ADDR_LOWER
] = (u32
)(boot_addr
& 0xffffffff);
111 ulong
get_spin_addr(void)
113 extern ulong __secondary_start_page
;
114 extern ulong __spin_table
;
117 (ulong
)&__spin_table
- (ulong
)&__secondary_start_page
;
123 static void pq3_mp_up(unsigned long bootpg
)
125 u32 up
, cpu_up_mask
, whoami
;
126 u32
*table
= (u32
*)get_spin_addr();
128 volatile ccsr_local_ecm_t
*ecm
= (void *)(CFG_MPC85xx_ECM_ADDR
);
129 volatile ccsr_gur_t
*gur
= (void *)(CFG_MPC85xx_GUTS_ADDR
);
130 volatile ccsr_pic_t
*pic
= (void *)(CFG_MPC85xx_PIC_ADDR
);
134 whoami
= in_be32(&pic
->whoami
);
135 out_be32(&ecm
->bptr
, 0x80000000 | (bootpg
>> 12));
137 /* disable time base at the platform */
138 devdisr
= in_be32(&gur
->devdisr
);
140 devdisr
|= MPC85xx_DEVDISR_TB0
;
142 devdisr
|= MPC85xx_DEVDISR_TB1
;
143 out_be32(&gur
->devdisr
, devdisr
);
145 /* release the hounds */
146 up
= ((1 << CONFIG_NR_CPUS
) - 1);
147 bpcr
= in_be32(&ecm
->eebpcr
);
149 out_be32(&ecm
->eebpcr
, bpcr
);
150 asm("sync; isync; msync");
152 cpu_up_mask
= 1 << whoami
;
153 /* wait for everyone */
156 for (i
= 1; i
< CONFIG_NR_CPUS
; i
++) {
157 if (table
[i
* NUM_BOOT_ENTRY
+ BOOT_ENTRY_ADDR_LOWER
])
158 cpu_up_mask
|= (1 << i
);
161 if ((cpu_up_mask
& up
) == up
)
169 printf("CPU up timeout. CPU up mask is %x should be %x\n",
172 /* enable time base at the platform */
174 devdisr
|= MPC85xx_DEVDISR_TB1
;
176 devdisr
|= MPC85xx_DEVDISR_TB0
;
177 out_be32(&gur
->devdisr
, devdisr
);
181 devdisr
&= ~(MPC85xx_DEVDISR_TB0
| MPC85xx_DEVDISR_TB1
);
182 out_be32(&gur
->devdisr
, devdisr
);
185 void cpu_mp_lmb_reserve(struct lmb
*lmb
)
189 /* if we have 4G or more of memory, put the boot page at 4Gb-4k */
190 if ((u64
)gd
->ram_size
> 0xfffff000)
193 bootpg
= gd
->ram_size
- 4096;
195 lmb_reserve(lmb
, bootpg
, 4096);
200 extern ulong __secondary_start_page
;
201 ulong fixup
= (ulong
)&__secondary_start_page
;
204 /* if we have 4G or more of memory, put the boot page at 4Gb-4k */
205 if ((u64
)gd
->ram_size
> 0xfffff000)
208 bootpg
= gd
->ram_size
- 4096;
210 memcpy((void *)bootpg
, (void *)fixup
, 4096);
211 flush_cache(bootpg
, 4096);