diff options
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/lib/bootcount.c | 92 | ||||
| -rw-r--r-- | arch/powerpc/lib/bootm.c | 4 |
3 files changed, 95 insertions, 2 deletions
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 334e457..5f85502 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -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 diff --git a/arch/powerpc/lib/bootcount.c b/arch/powerpc/lib/bootcount.c new file mode 100644 index 0000000..338c848 --- /dev/null +++ b/arch/powerpc/lib/bootcount.c @@ -0,0 +1,92 @@ +/* + * (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) + u32 tmp = in_be32(reg); + + if ((tmp & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000)) + return 0; + else + return (tmp & 0x0000ffff); +#else + if (in_be32(reg + 4) != BOOTCOUNT_MAGIC) + return 0; + else + return in_be32(reg); +#endif +} diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c index 0685a93..6702df5 100644 --- a/arch/powerpc/lib/bootm.c +++ b/arch/powerpc/lib/bootm.c @@ -163,8 +163,8 @@ void arch_lmb_reserve(struct lmb *lmb) sp = get_sp(); debug ("## Current stack ends at 0x%08lx\n", sp); - /* adjust sp by 1K to be safe */ - sp -= 1024; + /* adjust sp by 4K to be safe */ + sp -= 4096; lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - sp)); return ; |