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cortex a8: only physical read/write's are available when target is running 

Memory read/writes to virtual memory, requires that the CPU is
halted.

Use 'phys' option to write to memory while target is running.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
__archive__
Øyvind Harboe 2010-06-22 12:47:30 +02:00
parent 33e7696cfa
commit d236a48e8f
1 changed files with 9 additions and 2 deletions
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11
src/target/cortex_a8.c
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@ -1381,12 +1381,16 @@ static int cortex_a8_read_memory(struct target *target, uint32_t address,
{ {
int enabled = 0; int enabled = 0;
uint32_t virt, phys; uint32_t virt, phys;
int retval;
/* cortex_a8 handles unaligned memory access */ /* cortex_a8 handles unaligned memory access */
// ??? dap_ap_select(swjdp, swjdp_memoryap); // ??? dap_ap_select(swjdp, swjdp_memoryap);
LOG_DEBUG("Reading memory at address 0x%x; size %d; count %d", address, size, count); LOG_DEBUG("Reading memory at address 0x%x; size %d; count %d", address, size, count);
cortex_a8_mmu(target, &enabled); retval = cortex_a8_mmu(target, &enabled);
if (retval != ERROR_OK)
return retval;
if(enabled) if(enabled)
{ {
virt = address; virt = address;
@ -1484,11 +1488,14 @@ static int cortex_a8_write_memory(struct target *target, uint32_t address,
{ {
int enabled = 0; int enabled = 0;
uint32_t virt, phys; uint32_t virt, phys;
int retval;
// ??? dap_ap_select(swjdp, swjdp_memoryap); // ??? dap_ap_select(swjdp, swjdp_memoryap);
LOG_DEBUG("Writing memory to address 0x%x; size %d; count %d", address, size, count); LOG_DEBUG("Writing memory to address 0x%x; size %d; count %d", address, size, count);
cortex_a8_mmu(target, &enabled); retval = cortex_a8_mmu(target, &enabled);
if (retval != ERROR_OK)
return retval;
if(enabled) if(enabled)
{ {
virt = address; virt = address;