Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751937AbbEQWNu (ORCPT ); Sun, 17 May 2015 18:13:50 -0400 Received: from mail.kmu-office.ch ([178.209.48.109]:53472 "EHLO mail.kmu-office.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751120AbbEQWNk (ORCPT ); Sun, 17 May 2015 18:13:40 -0400 From: Stefan Agner To: shawn.guo@linaro.org, kernel@pengutronix.de Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stefan@agner.ch Subject: [PATCH] ARM: imx: clk-vf610: enable debug access port by default Date: Mon, 18 May 2015 00:13:33 +0200 Message-Id: <1431900813-5466-1-git-send-email-stefan@agner.ch> X-Mailer: git-send-email 2.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2303 Lines: 59 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 --- drivers/clk/imx/clk-vf610.c | 2 ++ include/dt-bindings/clock/vf610-clock.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-vf610.c b/drivers/clk/imx/clk-vf610.c index 61876ed..1c2d324 100644 --- a/drivers/clk/imx/clk-vf610.c +++ b/drivers/clk/imx/clk-vf610.c @@ -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)); diff --git a/include/dt-bindings/clock/vf610-clock.h b/include/dt-bindings/clock/vf610-clock.h index 979d24a..d197634 100644 --- a/include/dt-bindings/clock/vf610-clock.h +++ b/include/dt-bindings/clock/vf610-clock.h @@ -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 */ -- 2.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/