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ARM: imx: clk-vf610: enable debug access port by default

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Enabled DAP (debug access port) by default. This enables the hw-
breakpoint framework to make use of the breakpoints and watchpoints
supported by hardware.

[    0.215805] hw-breakpoint: found 2 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.224624] hw-breakpoint: maximum watchpoint size is 4 bytes.

Without this clock, the hw-breakpoint driver claims an undefined
instruction during initialization:
[    0.227380] hw-breakpoint: Debug register access (0xee003e17) caused undefined instruction on CPU 0
[    0.227519] hw-breakpoint: CPU 0 failed to disable vector catch

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Stefan Agner 2015-05-18 00:13:33 +02:00 committed by Shawn Guo
parent 1579c7b9fe
commit d930d56825
2 changed files with 4 additions and 1 deletions
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2
drivers/clk/imx/clk-vf610.c
View File

@ -118,6 +118,7 @@ static struct clk_onecell_data clk_data;
static unsigned int const clks_init_on[] __initconst = {
VF610_CLK_SYS_BUS,
VF610_CLK_DDR_SEL,
VF610_CLK_DAP,
};
static struct clk * __init vf610_get_fixed_clock(
@ -383,6 +384,7 @@ static void __init vf610_clocks_init(struct device_node *ccm_node)
clk[VF610_CLK_DMAMUX3] = imx_clk_gate2("dmamux3", "platform_bus", CCM_CCGR6, CCM_CCGRx_CGn(2));
clk[VF610_CLK_SNVS] = imx_clk_gate2("snvs-rtc", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(7));
clk[VF610_CLK_DAP] = imx_clk_gate("dap", "platform_bus", CCM_CCSR, 24);
imx_check_clocks(clk, ARRAY_SIZE(clk));

3
include/dt-bindings/clock/vf610-clock.h
View File

@ -193,6 +193,7 @@
#define VF610_PLL6_BYPASS 180
#define VF610_PLL7_BYPASS 181
#define VF610_CLK_SNVS 182
#define VF610_CLK_END 183
#define VF610_CLK_DAP 183
#define VF610_CLK_END 184
#endif /* __DT_BINDINGS_CLOCK_VF610_H */