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| author | Luca Ellero <lroluk@gmail.com> | 2011-02-12 11:54:39 +0000 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-02-14 15:29:25 +0100 |
| commit | aaa52e16ce9b6d43d2fa578361a582ccd9e6c85d (patch) | |
| tree | 0c33cb9865ef6627bc936681f4fc0bf2f9cd2a8b /src | |
| parent | f609d03f1fc0b722584f624fe25b04efd362ef00 (diff) | |
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cortex_a9: check if MMU is enabled on APB read/write memory
Signed-off-by: Luca Ellero <lroluk@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/target/cortex_a9.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/target/cortex_a9.c b/src/target/cortex_a9.c index 3ad7a7d3..422da3f7 100644 --- a/src/target/cortex_a9.c +++ b/src/target/cortex_a9.c @@ -1521,6 +1521,7 @@ static int cortex_a9_read_phys_memory(struct target *target, uint32_t saved_r0, saved_r1; int nbytes = count * size; uint32_t data; + int enabled = 0; if (target->state != TARGET_HALTED) { @@ -1528,6 +1529,16 @@ static int cortex_a9_read_phys_memory(struct target *target, return ERROR_TARGET_NOT_HALTED; } + retval = cortex_a9_mmu(target, &enabled); + if (retval != ERROR_OK) + return retval; + + if (enabled) + { + LOG_WARNING("Reading physical memory through APB with MMU enabled is not yet implemented"); + return ERROR_TARGET_FAILURE; + } + /* save registers r0 and r1, we are going to corrupt them */ retval = cortex_a9_dap_read_coreregister_u32(target, &saved_r0, 0); if (retval != ERROR_OK) @@ -1635,6 +1646,7 @@ static int cortex_a9_write_phys_memory(struct target *target, uint32_t saved_r0, saved_r1; int nbytes = count * size; uint32_t data; + int enabled = 0; if (target->state != TARGET_HALTED) { @@ -1642,6 +1654,16 @@ static int cortex_a9_write_phys_memory(struct target *target, return ERROR_TARGET_NOT_HALTED; } + retval = cortex_a9_mmu(target, &enabled); + if (retval != ERROR_OK) + return retval; + + if (enabled) + { + LOG_WARNING("Writing physical memory through APB with MMU enabled is not yet implemented"); + return ERROR_TARGET_FAILURE; + } + /* save registers r0 and r1, we are going to corrupt them */ retval = cortex_a9_dap_read_coreregister_u32(target, &saved_r0, 0); if (retval != ERROR_OK) |