2 * (C) Copyright 2010-2012
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <linux/compiler.h>
12 * Only override CONFIG_SYS_BOOTCOUNT_ADDR if not already defined. This
13 * way, some boards can define it directly in their config header.
15 #if !defined(CONFIG_SYS_BOOTCOUNT_ADDR)
17 #if defined(CONFIG_MPC5xxx)
18 #define CONFIG_SYS_BOOTCOUNT_ADDR (MPC5XXX_CDM_BRDCRMB)
19 #define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
20 #endif /* defined(CONFIG_MPC5xxx) */
22 #if defined(CONFIG_MPC512X)
23 #define CONFIG_SYS_BOOTCOUNT_ADDR (&((immap_t *)CONFIG_SYS_IMMR)->clk.bcr)
24 #define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
25 #endif /* defined(CONFIG_MPC512X) */
27 #if defined(CONFIG_8xx)
28 #define CONFIG_SYS_BOOTCOUNT_ADDR (((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + \
30 #endif /* defined(CONFIG_8xx) */
32 #if defined(CONFIG_MPC8260)
33 #include <asm/cpm_8260.h>
35 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR)
36 #endif /* defined(CONFIG_MPC8260) */
38 #if defined(CONFIG_QE)
39 #include <asm/immap_qe.h>
41 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + 0x110000 + \
42 QE_MURAM_SIZE - 2 * sizeof(u32))
43 #endif /* defined(CONFIG_MPC8360) */
45 #if defined(CONFIG_4xx)
46 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_OCM_DATA_ADDR + \
47 CONFIG_SYS_BOOTCOUNT_ADDR)
48 #endif /* defined(CONFIG_4xx) */
50 #endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
52 /* Now implement the generic default functions */
53 #if defined(CONFIG_SYS_BOOTCOUNT_ADDR)
54 __weak
void bootcount_store(ulong a
)
56 void *reg
= (void *)CONFIG_SYS_BOOTCOUNT_ADDR
;
58 #if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
59 raw_bootcount_store(reg
, (BOOTCOUNT_MAGIC
& 0xffff0000) | a
);
61 raw_bootcount_store(reg
, a
);
62 raw_bootcount_store(reg
+ 4, BOOTCOUNT_MAGIC
);
66 __weak ulong
bootcount_load(void)
68 void *reg
= (void *)CONFIG_SYS_BOOTCOUNT_ADDR
;
70 #if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
71 u32 tmp
= raw_bootcount_load(reg
);
73 if ((tmp
& 0xffff0000) != (BOOTCOUNT_MAGIC
& 0xffff0000))
76 return (tmp
& 0x0000ffff);
78 if (raw_bootcount_load(reg
+ 4) != BOOTCOUNT_MAGIC
)
81 return raw_bootcount_load(reg
);