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8360, kmeter1: added bootcount feature.

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add CONFIG_BOOTCOUNT_LIMIT feature for 8360 CPU.

The bootcounter uses 8 bytes from the muram,
because no other memory was found on this
CPU for the bootcount feature. So we must
correct the muram size in DTS before booting
Linux.

This feature is actual only implemented for
MPC8360, because not all 83xx CPU have qe,
and therefore no muram, which this feature
uses.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Heiko Schocher 2009-02-24 11:30:51 +01:00 committed by Kim Phillips
parent 1e7ed25650
commit f70fd13e2f
2 changed files with 52 additions and 0 deletions
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34
cpu/mpc83xx/cpu.c
View File

@ -35,6 +35,10 @@
#include <tsec.h>
#include <netdev.h>
#include <fsl_esdhc.h>
#ifdef CONFIG_BOOTCOUNT_LIMIT
#include <asm/immap_qe.h>
#include <asm/io.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
@ -399,3 +403,33 @@ 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 */

18
cpu/mpc83xx/fdt.c
View File

@ -32,6 +32,20 @@ extern void ft_qe_setup(void *blob);
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_BOOTCOUNT_LIMIT) && defined(CONFIG_MPC8360)
#include <asm/immap_qe.h>
void fdt_fixup_muram (void *blob)
{
ulong data[2];
data[0] = 0;
data[1] = QE_MURAM_SIZE - 2 * sizeof(unsigned long);
do_fixup_by_path(blob, "/qe/muram/data-only", "reg",
data, sizeof (data), 0);
}
#endif
void ft_cpu_setup(void *blob, bd_t *bd)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
@ -83,4 +97,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
#endif
fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
#if defined(CONFIG_BOOTCOUNT_LIMIT)
fdt_fixup_muram (blob);
#endif
}