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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2015-08-08 15:18:16 -0700 |
|---|---|---|
| committer | Freddie Chopin <freddie.chopin@gmail.com> | 2016-11-04 21:21:50 +0000 |
| commit | d1bdcdcc8d429a2ce06fb35f82a67b2487b72ec3 (patch) | |
| tree | 10ee3d0066d25458de15347ab5c23aa07c646089 /src/target/armv7a.c | |
| parent | b10037a0b784cab94e21b37c976ad2b5174d52ae (diff) | |
| download | riscv-openocd-d1bdcdcc8d429a2ce06fb35f82a67b2487b72ec3.zip riscv-openocd-d1bdcdcc8d429a2ce06fb35f82a67b2487b72ec3.tar.gz riscv-openocd-d1bdcdcc8d429a2ce06fb35f82a67b2487b72ec3.tar.bz2 | |
semihosting armv7a: Add support for ARMv7-A
Add semihosting support for ARMv7-A based processors.
Tested with custom Vybrid VF610 based board
and Pandaboard ES (Rev. B1) board (Cortex-A9).
Change-Id: I6b896a61c1c6a1c5dcf89de834486f82dd6c80a2
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Tsung-Han Lin <tsunghan.tw@gmail.com>
Reviewed-on: http://openocd.zylin.com/2908
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
Diffstat (limited to 'src/target/armv7a.c')
| -rw-r--r-- | src/target/armv7a.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/target/armv7a.c b/src/target/armv7a.c index 37eb1b5..6021def 100644 --- a/src/target/armv7a.c +++ b/src/target/armv7a.c @@ -679,11 +679,40 @@ done: } +static int armv7a_setup_semihosting(struct target *target, int enable) +{ + struct armv7a_common *armv7a = target_to_armv7a(target); + uint32_t vcr; + int ret; + + ret = mem_ap_read_atomic_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_VCR, + &vcr); + if (ret < 0) { + LOG_ERROR("Failed to read VCR register\n"); + return ret; + } + + if (enable) + vcr |= DBG_VCR_SVC_MASK; + else + vcr &= ~DBG_VCR_SVC_MASK; + + ret = mem_ap_write_atomic_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_VCR, + vcr); + if (ret < 0) + LOG_ERROR("Failed to write VCR register\n"); + + return ret; +} + int armv7a_init_arch_info(struct target *target, struct armv7a_common *armv7a) { struct arm *arm = &armv7a->arm; arm->arch_info = armv7a; target->arch_info = &armv7a->arm; + arm->setup_semihosting = armv7a_setup_semihosting; /* target is useful in all function arm v4 5 compatible */ armv7a->arm.target = target; armv7a->arm.common_magic = ARM_COMMON_MAGIC; |