u-boot-brain/arch/powerpc/cpu/mpc8xxx/cpu.c
Kim Phillips a37c36f4e7 powerpc/8xxx: query feature reporting register for num cores on unknown cpus
doing so helps avant garde users, such as those using simulators that
allow users to configure the number of cores, so as to not have to
manually adjust u-boot sources.  h/w should also be reliably setting
FRR NCPU in the future.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-08-01 11:18:45 -05:00

157 lines
4.3 KiB
C

/*
* Copyright 2009-2010 Freescale Semiconductor, Inc.
*
* This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
* arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
* cpu specific common code for 85xx/86xx processors.
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 <config.h>
#include <common.h>
#include <command.h>
#include <tsec.h>
#include <netdev.h>
#include <asm/cache.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
struct cpu_type cpu_type_list [] = {
#if defined(CONFIG_MPC85xx)
CPU_TYPE_ENTRY(8533, 8533, 1),
CPU_TYPE_ENTRY(8533, 8533_E, 1),
CPU_TYPE_ENTRY(8535, 8535, 1),
CPU_TYPE_ENTRY(8535, 8535_E, 1),
CPU_TYPE_ENTRY(8536, 8536, 1),
CPU_TYPE_ENTRY(8536, 8536_E, 1),
CPU_TYPE_ENTRY(8540, 8540, 1),
CPU_TYPE_ENTRY(8541, 8541, 1),
CPU_TYPE_ENTRY(8541, 8541_E, 1),
CPU_TYPE_ENTRY(8543, 8543, 1),
CPU_TYPE_ENTRY(8543, 8543_E, 1),
CPU_TYPE_ENTRY(8544, 8544, 1),
CPU_TYPE_ENTRY(8544, 8544_E, 1),
CPU_TYPE_ENTRY(8545, 8545, 1),
CPU_TYPE_ENTRY(8545, 8545_E, 1),
CPU_TYPE_ENTRY(8547, 8547_E, 1),
CPU_TYPE_ENTRY(8548, 8548, 1),
CPU_TYPE_ENTRY(8548, 8548_E, 1),
CPU_TYPE_ENTRY(8555, 8555, 1),
CPU_TYPE_ENTRY(8555, 8555_E, 1),
CPU_TYPE_ENTRY(8560, 8560, 1),
CPU_TYPE_ENTRY(8567, 8567, 1),
CPU_TYPE_ENTRY(8567, 8567_E, 1),
CPU_TYPE_ENTRY(8568, 8568, 1),
CPU_TYPE_ENTRY(8568, 8568_E, 1),
CPU_TYPE_ENTRY(8569, 8569, 1),
CPU_TYPE_ENTRY(8569, 8569_E, 1),
CPU_TYPE_ENTRY(8572, 8572, 2),
CPU_TYPE_ENTRY(8572, 8572_E, 2),
CPU_TYPE_ENTRY(P1011, P1011, 1),
CPU_TYPE_ENTRY(P1011, P1011_E, 1),
CPU_TYPE_ENTRY(P1012, P1012, 1),
CPU_TYPE_ENTRY(P1012, P1012_E, 1),
CPU_TYPE_ENTRY(P1013, P1013, 1),
CPU_TYPE_ENTRY(P1013, P1013_E, 1),
CPU_TYPE_ENTRY(P1020, P1020, 2),
CPU_TYPE_ENTRY(P1020, P1020_E, 2),
CPU_TYPE_ENTRY(P1021, P1021, 2),
CPU_TYPE_ENTRY(P1021, P1021_E, 2),
CPU_TYPE_ENTRY(P1022, P1022, 2),
CPU_TYPE_ENTRY(P1022, P1022_E, 2),
CPU_TYPE_ENTRY(P2010, P2010, 1),
CPU_TYPE_ENTRY(P2010, P2010_E, 1),
CPU_TYPE_ENTRY(P2020, P2020, 2),
CPU_TYPE_ENTRY(P2020, P2020_E, 2),
CPU_TYPE_ENTRY(P3041, P3041, 4),
CPU_TYPE_ENTRY(P3041, P3041_E, 4),
CPU_TYPE_ENTRY(P4040, P4040, 4),
CPU_TYPE_ENTRY(P4040, P4040_E, 4),
CPU_TYPE_ENTRY(P4080, P4080, 8),
CPU_TYPE_ENTRY(P4080, P4080_E, 8),
CPU_TYPE_ENTRY(P5010, P5010, 1),
CPU_TYPE_ENTRY(P5010, P5010_E, 1),
CPU_TYPE_ENTRY(P5020, P5020, 2),
CPU_TYPE_ENTRY(P5020, P5020_E, 2),
#elif defined(CONFIG_MPC86xx)
CPU_TYPE_ENTRY(8610, 8610, 1),
CPU_TYPE_ENTRY(8641, 8641, 2),
CPU_TYPE_ENTRY(8641D, 8641D, 2),
#endif
};
struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 1);
struct cpu_type *identify_cpu(u32 ver)
{
int i;
for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
if (cpu_type_list[i].soc_ver == ver)
return &cpu_type_list[i];
}
return &cpu_type_unknown;
}
int cpu_numcores() {
ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC85xx_PIC_ADDR;
struct cpu_type *cpu = gd->cpu;
/* better to query feature reporting register than just assume 1 */
if (cpu == &cpu_type_unknown)
return ((in_be32(&pic->frr) & MPC85xx_PICFRR_NCPU_MASK) >>
MPC85xx_PICFRR_NCPU_SHIFT) + 1;
return cpu->num_cores;
}
int probecpu (void)
{
uint svr;
uint ver;
svr = get_svr();
ver = SVR_SOC_VER(svr);
gd->cpu = identify_cpu(ver);
return 0;
}
/*
* Initializes on-chip ethernet controllers.
* to override, implement board_eth_init()
*/
int cpu_eth_init(bd_t *bis)
{
#if defined(CONFIG_ETHER_ON_FCC)
fec_initialize(bis);
#endif
#if defined(CONFIG_UEC_ETH)
uec_standard_init(bis);
#endif
#if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC)
tsec_standard_init(bis);
#endif
return 0;
}