From bef92e215d945cc574399c1a1b00a3a76d35aa03 Mon Sep 17 00:00:00 2001 From: Axel Beierlein Date: Sat, 16 Aug 2008 00:30:48 +0200 Subject: Adding bootlimit/bootcount feature for MPC5XXX on TQM5200 Boards Tested with TQM5200S on STK52XX.200 Board Signed-off-by: Axel Beierlein --- cpu/mpc5xxx/cpu.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'cpu/mpc5xxx/cpu.c') diff --git a/cpu/mpc5xxx/cpu.c b/cpu/mpc5xxx/cpu.c index ace1653..d87f42c 100644 --- a/cpu/mpc5xxx/cpu.c +++ b/cpu/mpc5xxx/cpu.c @@ -135,3 +135,23 @@ void ft_cpu_setup(void *blob, bd_t *bd) #endif } #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 */ -- cgit v1.1