flash/nor/core: adjust flash_iterate_address_range_inner() for 64-bit

Use target_addr_t exclusively for comparison of sector boudaries and
address range.

Use the last addres for both address range end and sector end.
It avoids problems with a flash bank mapped at the very end of
target address space.

Change-Id: Idf97c837453d97cbc4cf8a1c76ad799f4142f19e
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4985
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>

diff --git a/src/flash/nor/core.c b/src/flash/nor/core.c
index 11b7ce4a0af176553fa4c33952fa26b70df7b527..043ff13c8dfa69a087c213a08f265d79927a8b31 100644 (file)
--- a/src/flash/nor/core.c
+++ b/src/flash/nor/core.c
@@ -422,7 +422,7 @@ static int flash_iterate_address_range_inner(struct target *target,
 {
        struct flash_bank *c;
        struct flash_sector *block_array;
-       target_addr_t last_addr = addr + length;        /* first address AFTER end */
+       target_addr_t last_addr = addr + length - 1;    /* the last address of range */
        int first = -1;
        int last = -1;
        int i;
@@ -448,7 +448,7 @@ static int flash_iterate_address_range_inner(struct target *target,
        }
 
        /* check whether it all fits in this bank */
-       if (addr + length - 1 > c->base + c->size - 1) {
+       if (last_addr > c->base + c->size - 1) {
                LOG_ERROR("Flash access does not fit into bank.");
                return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
        }
@@ -466,21 +466,19 @@ static int flash_iterate_address_range_inner(struct target *target,
                num_blocks = c->num_sectors;
        }
 
-       addr -= c->base;
-       last_addr -= c->base;
-
        for (i = 0; i < num_blocks; i++) {
                struct flash_sector *f = &block_array[i];
-               uint32_t end = f->offset + f->size;
+               target_addr_t sector_addr = c->base + f->offset;
+               target_addr_t sector_last_addr = sector_addr + f->size - 1;
 
                /* start only on a sector boundary */
                if (first < 0) {
                        /* scanned past the first sector? */
-                       if (addr < f->offset)
+                       if (addr < sector_addr)
                                break;
 
                        /* is this the first sector? */
-                       if (addr == f->offset)
+                       if (addr == sector_addr)
                                first = i;
 
                        /* Does this need head-padding?  If so, pad and warn;
@@ -490,12 +488,12 @@ static int flash_iterate_address_range_inner(struct target *target,
                         * ever know if that data was in use.  The warning
                         * should help users sort out messes later.
                         */
-                       else if (addr < end && pad_reason) {
+                       else if (addr <= sector_last_addr && pad_reason) {
                                /* FIXME say how many bytes (e.g. 80 KB) */
                                LOG_WARNING("Adding extra %s range, "
-                                       "%#8.8x to " TARGET_ADDR_FMT,
+                                       TARGET_ADDR_FMT " .. " TARGET_ADDR_FMT,
                                        pad_reason,
-                                       (unsigned) f->offset,
+                                       sector_addr,
                                        addr - 1);
                                first = i;
                        } else
@@ -503,7 +501,7 @@ static int flash_iterate_address_range_inner(struct target *target,
                }
 
                /* is this (also?) the last sector? */
-               if (last_addr == end) {
+               if (last_addr == sector_last_addr) {
                        last = i;
                        break;
                }
@@ -511,19 +509,19 @@ static int flash_iterate_address_range_inner(struct target *target,
                /* Does this need tail-padding?  If so, pad and warn;
                 * or else force an error.
                 */
-               if (last_addr < end && pad_reason) {
+               if (last_addr < sector_last_addr && pad_reason) {
                        /* FIXME say how many bytes (e.g. 80 KB) */
                        LOG_WARNING("Adding extra %s range, "
-                               "%#8.8x to %#8.8x",
+                               TARGET_ADDR_FMT " .. " TARGET_ADDR_FMT,
                                pad_reason,
-                               (unsigned) last_addr,
-                               (unsigned) end - 1);
+                               last_addr + 1,
+                               sector_last_addr);
                        last = i;
                        break;
                }
 
                /* MUST finish on a sector boundary */
-               if (last_addr <= f->offset)
+               if (last_addr < sector_addr)
                        break;
        }
 
@@ -531,8 +529,8 @@ static int flash_iterate_address_range_inner(struct target *target,
        if (first == -1 || last == -1) {
                LOG_ERROR("address range " TARGET_ADDR_FMT " .. " TARGET_ADDR_FMT
                        " is not sector-aligned",
-                       c->base + addr,
-                       c->base + last_addr - 1);
+                       addr,
+                       last_addr);
                return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
        }