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| author | Øyvind Harboe <oyvind.harboe@zylin.com> | 2010-07-19 08:45:45 +0200 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2010-07-19 22:13:48 +0200 |
| commit | 70fee9207b5fd1c6f499b790591446adc4d4467c (patch) | |
| tree | 441eee8f9af2ed37eaf072d22465246037f99d15 /src/target/arm720t.c | |
| parent | 612184176fee6333e5372c4637e3cf54628ee416 (diff) | |
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arm: add error propagation to generic get_ttb fn
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Diffstat (limited to 'src/target/arm720t.c')
| -rw-r--r-- | src/target/arm720t.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/target/arm720t.c b/src/target/arm720t.c index 0ea6cb2b..b269f948 100644 --- a/src/target/arm720t.c +++ b/src/target/arm720t.c @@ -134,16 +134,24 @@ static int arm720t_write_cp15(struct target *target, uint32_t opcode, uint32_t v return ERROR_OK; } -static uint32_t arm720t_get_ttb(struct target *target) +static int arm720t_get_ttb(struct target *target, uint32_t *result) { uint32_t ttb = 0x0; - arm720t_read_cp15(target, 0xee120f10, &ttb); - jtag_execute_queue(); + int retval; + + retval = arm720t_read_cp15(target, 0xee120f10, &ttb); + if (retval != ERROR_OK) + return retval; + retval = jtag_execute_queue(); + if (retval != ERROR_OK) + return retval; ttb &= 0xffffc000; - return ttb; + *result = ttb; + + return ERROR_OK; } static void arm720t_disable_mmu_caches(struct target *target, |