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>

diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c
index ea07579bf24a938078e0387f971cd57de0f1d77f..afe5b6cb08a119eaf0046b3aeb9a312fb13efcda 100644 (file)
--- a/src/target/cortex_a8.c
+++ b/src/target/cortex_a8.c
@@ -1381,12 +1381,16 @@ static int cortex_a8_read_memory(struct target *target, uint32_t address,
 {
         int enabled = 0;
         uint32_t virt, phys;
+        int retval;
 
        /* cortex_a8 handles unaligned memory access */
 
 // ??? dap_ap_select(swjdp, swjdp_memoryap);
         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)
         {
             virt = address;
@@ -1484,11 +1488,14 @@ static int cortex_a8_write_memory(struct target *target, uint32_t address,
 {
         int enabled = 0;
         uint32_t virt, phys;
+        int retval;
 
 // ???  dap_ap_select(swjdp, swjdp_memoryap);
 
         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)
         {
             virt = address;