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>
34 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR)
35 #endif /* defined(CONFIG_MPC8260) */
37 #if defined(CONFIG_QE)
38 #include <linux/immap_qe.h>
39 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + 0x110000 + \
40 QE_MURAM_SIZE - 2 * sizeof(u32))
41 #endif /* defined(CONFIG_QE) */
43 #if defined(CONFIG_4xx)
44 #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_OCM_DATA_ADDR + \
45 CONFIG_SYS_BOOTCOUNT_ADDR)
46 #endif /* defined(CONFIG_4xx) */
48 #endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
50 /* Now implement the generic default functions */
51 #if defined(CONFIG_SYS_BOOTCOUNT_ADDR)
52 __weak
void bootcount_store(ulong a
)
54 void *reg
= (void *)CONFIG_SYS_BOOTCOUNT_ADDR
;
56 #if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
57 raw_bootcount_store(reg
, (BOOTCOUNT_MAGIC
& 0xffff0000) | a
);
59 raw_bootcount_store(reg
, a
);
60 raw_bootcount_store(reg
+ 4, BOOTCOUNT_MAGIC
);
61 #endif /* defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD */
64 __weak ulong
bootcount_load(void)
66 void *reg
= (void *)CONFIG_SYS_BOOTCOUNT_ADDR
;
68 #if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
69 u32 tmp
= raw_bootcount_load(reg
);
71 if ((tmp
& 0xffff0000) != (BOOTCOUNT_MAGIC
& 0xffff0000))
74 return (tmp
& 0x0000ffff);
76 if (raw_bootcount_load(reg
+ 4) != BOOTCOUNT_MAGIC
)
79 return raw_bootcount_load(reg
);
80 #endif /* defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD) */
82 #endif /* defined(CONFIG_SYS_BOOTCOUNT_ADDR) */