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powerpc: Consolidate bootcount_{store|load} for PowerPC

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This patch consolidates bootcount_{store|load} for PowerPC by
implementing a common version in arch/powerpc/lib/bootcount.c. This
code is now used by all PowerPC variants that currently have these
functions implemented.

The functions now use the proper IO-accessor functions to read/write the
values.

This code also supports two different bootcount versions:

a) Use 2 separate words (2 * 32bit) to store the bootcounter
b) Use only 1 word (2 * 16bit) to store the bootcounter

Version b) was already used by MPC5xxx.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
          for 83xx parts
Cc: Michael Zaidman <michael.zaidman@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Stefan Roese 2010-04-28 10:47:36 +02:00 committed by Wolfgang Denk
parent 7b2afd9381
commit e4a95d112e
7 changed files with 91 additions and 124 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
arch/powerpc/cpu/mpc5xxx/cpu.c
View file

@ -154,26 +154,6 @@ void ft_cpu_setup(void *blob, bd_t *bd)
}
#endif
#ifdef CONFIG_BOOTCOUNT_LIMIT
void bootcount_store (ulong a)
{
volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a;
}
ulong bootcount_load (void)
{
volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
return 0;
else
return (*save_addr & 0x0000ffff);
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */
#ifdef CONFIG_MPC5xxx_FEC
/* Default initializations for FEC controllers. To override,
* create a board-specific function called:

24
arch/powerpc/cpu/mpc8260/commproc.c
View file

@ -195,27 +195,3 @@ ulong post_word_load (void)
}
#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
#ifdef CONFIG_BOOTCOUNT_LIMIT
void bootcount_store (ulong a)
{
volatile ulong *save_addr =
(volatile ulong *)(CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR);
save_addr[0] = a;
save_addr[1] = BOOTCOUNT_MAGIC;
}
ulong bootcount_load (void)
{
volatile ulong *save_addr =
(volatile ulong *)(CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR);
if (save_addr[1] != BOOTCOUNT_MAGIC)
return 0;
else
return save_addr[0];
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */

30
arch/powerpc/cpu/mpc83xx/cpu.c
View file

@ -304,33 +304,3 @@ int cpu_mmc_init(bd_t *bis)
return 0;
#endif
}
#ifdef CONFIG_BOOTCOUNT_LIMIT
#if !defined(CONFIG_MPC8360)
#error "CONFIG_BOOTCOUNT_LIMIT only for MPC8360 implemented"
#endif
#if !defined(CONFIG_BOOTCOUNT_ADDR)
#define CONFIG_BOOTCOUNT_ADDR (0x110000 + QE_MURAM_SIZE - 2 * sizeof(unsigned long))
#endif
#include <asm/io.h>
void bootcount_store (ulong a)
{
void *reg = (void *)(CONFIG_SYS_IMMR + CONFIG_BOOTCOUNT_ADDR);
out_be32 (reg, a);
out_be32 (reg + 4, BOOTCOUNT_MAGIC);
}
ulong bootcount_load (void)
{
void *reg = (void *)(CONFIG_SYS_IMMR + CONFIG_BOOTCOUNT_ADDR);
if (in_be32 (reg + 4) != BOOTCOUNT_MAGIC)
return 0;
else
return in_be32 (reg);
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */

26
arch/powerpc/cpu/mpc8xx/commproc.c
View file

@ -103,29 +103,3 @@ ulong post_word_load (void)
}
#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
#ifdef CONFIG_BOOTCOUNT_LIMIT
void bootcount_store (ulong a)
{
volatile ulong *save_addr =
(volatile ulong *)( ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem +
CPM_BOOTCOUNT_ADDR );
save_addr[0] = a;
save_addr[1] = BOOTCOUNT_MAGIC;
}
ulong bootcount_load (void)
{
volatile ulong *save_addr =
(volatile ulong *)( ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem +
CPM_BOOTCOUNT_ADDR );
if (save_addr[1] != BOOTCOUNT_MAGIC)
return 0;
else
return save_addr[0];
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */

24
arch/powerpc/cpu/ppc4xx/commproc.c
View file

@ -51,27 +51,3 @@ ulong post_word_load (void)
}
#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
#ifdef CONFIG_BOOTCOUNT_LIMIT
void bootcount_store (ulong a)
{
volatile ulong *save_addr =
(volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
save_addr[0] = a;
save_addr[1] = BOOTCOUNT_MAGIC;
}
ulong bootcount_load (void)
{
volatile ulong *save_addr =
(volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
if (save_addr[1] != BOOTCOUNT_MAGIC)
return 0;
else
return save_addr[0];
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */

1
arch/powerpc/lib/Makefile
View file

@ -33,6 +33,7 @@ SOBJS-y += reloc.o
COBJS-y += bat_rw.o
COBJS-y += board.o
COBJS-y += bootm.o
COBJS-$(CONFIG_BOOTCOUNT_LIMIT) += bootcount.o
COBJS-y += cache.o
COBJS-y += extable.o
COBJS-y += interrupts.o

90
arch/powerpc/lib/bootcount.c Normal file
View file

@ -0,0 +1,90 @@
/*
* (C) Copyright 2010
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* 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 <common.h>
#include <asm/io.h>
/*
* Only override CONFIG_SYS_BOOTCOUNT_ADDR if not already defined. This
* way, some boards can define it directly in their config header.
*/
#if !defined(CONFIG_SYS_BOOTCOUNT_ADDR)
#if defined(CONFIG_MPC5xxx)
#define CONFIG_SYS_BOOTCOUNT_ADDR (MPC5XXX_CDM_BRDCRMB)
#define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
#endif /* defined(CONFIG_MPC5xxx) */
#if defined(CONFIG_8xx)
#define CONFIG_SYS_BOOTCOUNT_ADDR (((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + \
CPM_BOOTCOUNT_ADDR)
#endif /* defined(CONFIG_8xx) */
#if defined(CONFIG_MPC8260)
#include <asm/cpm_8260.h>
#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR)
#endif /* defined(CONFIG_MPC8260) */
#if defined(CONFIG_MPC8360)
#include <asm/immap_qe.h>
#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + 0x110000 + \
QE_MURAM_SIZE - 2 * sizeof(u32))
#endif /* defined(CONFIG_MPC8360) */
#if defined(CONFIG_4xx)
#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_OCM_DATA_ADDR + \
CONFIG_SYS_BOOTCOUNT_ADDR)
#endif /* defined(CONFIG_4xx) */
#endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
void bootcount_store(ulong a)
{
void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
out_be32(reg, (BOOTCOUNT_MAGIC & 0xffff0000) | a);
#else
out_be32(reg, a);
out_be32(reg + 4, BOOTCOUNT_MAGIC);
#endif
}
ulong bootcount_load(void)
{
void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
if (in_be16(reg + 2) != (BOOTCOUNT_MAGIC & 0xffff))
return 0;
else
return in_be16(reg);
#else
if (in_be32(reg + 4) != BOOTCOUNT_MAGIC)
return 0;
else
return in_be32(reg);
#endif
}