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path: root/src/target/cortex_a9.c
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* arm_adi_v5: add/move apsel member in struct adiv5_dapLuca Ellero2011-02-171-2/+3
| | | | | | | | | | | | | | | This patch tries to make some order in "apsel" mess. "dap apsel" command was quite useless (and broken) by itself. With this patch we can use it to select between AHB or APB memory access (previous patch 05ab8bdb813acdcd74afa71d6656c2df816cb230 was somehow broken). - moves member apsel (in struct adiv5_dap) to ap_current - adds apsel member this strange choice is made trying to keep coherence in "dap apsel" command and to keep compatibility with other code (for example cortex_a8). Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: move dap_ap_select to arm_avi_v5Luca Ellero2011-02-141-92/+66
| | | | | | | | | | | | | | | dap_ap_select was used in the code at various points, but that can lead to confusion, without any knowledge of what AP is really selected at some points. Some bugs derive from this (for example md/mw doesn't work well after issueing "dap apsel" command). Moving it to arm_adi_v5.c (using mem_ap_sel* functions instead of mem_ap_*) make the code more clear and more easier to maintain. In the future it should be made "static" to avoid its use outside arm_adi_v5 One further benefit is the various goto has been removed as well Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: check if MMU is enabled on APB read/write memoryLuca Ellero2011-02-141-0/+22
| | | | Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: check target halted on APB read/write memoryLuca Ellero2011-02-141-0/+12
| | | | Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: trivial fixesLuca Ellero2011-02-141-6/+7
| | | | Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: implement read/write memory through APB-APLuca Ellero2011-02-101-31/+129
| | | | | | | | | | | | | | | This patch adds read/write capability to memory addresses not accessible through AHB-AP (for example "boot ROM code"). To select AHB or APB, a "dap apsel" command must be issued: dap apsel 0 -> following memory accesses are through AHB dap apsel 1 -> following memory accesses are through APB NOTE: at the moment APB memory accesses are very slow, compared to AHB accesses. Work has to be done to get it faster (for example LDR/STR instead od LDRB/STRB) Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: fix dap_ap_select() usageAaron Carroll2011-02-101-6/+20
| | | | | | | Save, select and restore AP in cortex_a9_step and cortex_a9_init_debug_access. Fixes a bug where the wrong AP is selected after a reset. Signed-off-by: Aaron Carroll <aaronc@cse.unsw.edu.au>
* cortex_a8/a9: fix some commentsLuca Ellero2011-02-081-4/+4
| | | | Signed-off-by: Luca Ellero <lroluk@gmail.com>
* cortex_a9: add source files for Cortex A9 support.Aaron Carroll2011-01-311-0/+2181
add target and build support for A9 Signed-off-by: Aaron Carroll <aaronc@cse.unsw.edu.au>
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