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authorSergey Alyoshin <alyoshin.s@gmail.com>2013-12-17 23:24:54 +0400
committerStefano Babic <sbabic@denx.de>2014-01-03 15:44:06 +0100
commit4611d5bab26f93471b84f6f33967cef69b3f723a (patch)
tree8f06c237bcbe2a7bd8f599ef487cf690b80ef3eb /drivers
parentc655b816e55464bf615e875475b8ffa506a4455e (diff)
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arm: mx5: Add fuse supply enable in fsl_iim
Enable fuse supply before fuse programming and disable after. Signed-off-by: Sergey Alyoshin <alyoshin.s@gmail.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/fsl_iim.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/misc/fsl_iim.c b/drivers/misc/fsl_iim.c
index 44ae7b1..36433a7 100644
--- a/drivers/misc/fsl_iim.c
+++ b/drivers/misc/fsl_iim.c
@@ -16,6 +16,9 @@
#ifndef CONFIG_MPC512X
#include <asm/arch/imx-regs.h>
#endif
+#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
+#include <asm/arch/clock.h>
+#endif
/* FSL IIM-specific constants */
#define STAT_BUSY 0x80
@@ -93,6 +96,10 @@ struct fsl_iim {
} bank[8];
};
+#if !defined(CONFIG_MX51) && !defined(CONFIG_MX53)
+#define enable_efuse_prog_supply(enable)
+#endif
+
static int prepare_access(struct fsl_iim **regs, u32 bank, u32 word, int assert,
const char *caller)
{
@@ -237,12 +244,16 @@ int fuse_prog(u32 bank, u32 word, u32 val)
if (ret)
return ret;
+ enable_efuse_prog_supply(1);
for (bit = 0; val; bit++, val >>= 1)
if (val & 0x01) {
ret = prog_bit(regs, bank, word, bit);
- if (ret)
+ if (ret) {
+ enable_efuse_prog_supply(0);
return ret;
+ }
}
+ enable_efuse_prog_supply(0);
return 0;
}