From 550f71ec8d1562c0deec8259cd753e27aa922e33 Mon Sep 17 00:00:00 2001 From: Pavel Kubelun Date: Wed, 23 Nov 2016 18:53:52 +0300 Subject: ipq806x: refactor rpm clock controller patches RPM clock controller driver had made its way upstream and previous approach of directly redoing a driver to support ipq806x is a no go anymore. Thus reverting mentioned patches to upstream state and renaming in correct patch numbering accordance. To make the driver work on ipq806x boards we introduce a custom patch. Signed-off-by: Pavel Kubelun --- ...012-2-clk-qcom-Add-support-for-RPM-Clocks.patch | 586 +++++++++++++++++++++ 1 file changed, 586 insertions(+) create mode 100644 target/linux/ipq806x/patches-4.4/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch (limited to 'target/linux/ipq806x/patches-4.4/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch') diff --git a/target/linux/ipq806x/patches-4.4/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch b/target/linux/ipq806x/patches-4.4/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch new file mode 100644 index 0000000000..8a38ead567 --- /dev/null +++ b/target/linux/ipq806x/patches-4.4/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch @@ -0,0 +1,586 @@ +From 872f91b5ea720c72f81fb46d353c43ecb3263ffa Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 2 Nov 2016 17:56:57 +0200 +Subject: clk: qcom: Add support for RPM Clocks + +This adds initial support for clocks controlled by the Resource +Power Manager (RPM) processor on some Qualcomm SoCs, which use +the qcom_rpm driver to communicate with RPM. +Such platforms are apq8064 and msm8960. + +Signed-off-by: Georgi Djakov +Acked-by: Rob Herring +Signed-off-by: Stephen Boyd +--- + .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 + + drivers/clk/qcom/Kconfig | 13 + + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-rpm.c | 489 +++++++++++++++++++++ + include/dt-bindings/clock/qcom,rpmcc.h | 24 + + 5 files changed, 528 insertions(+) + create mode 100644 drivers/clk/qcom/clk-rpm.c + +--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt ++++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +@@ -11,6 +11,7 @@ Required properties : + compatible "qcom,rpmcc" should be also included. + + "qcom,rpmcc-msm8916", "qcom,rpmcc" ++ "qcom,rpmcc-apq8064", "qcom,rpmcc" + + - #clock-cells : shall contain 1 + +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -12,6 +12,19 @@ config COMMON_CLK_QCOM + select REGMAP_MMIO + select RESET_CONTROLLER + ++config QCOM_CLK_RPM ++ tristate "RPM based Clock Controller" ++ depends on COMMON_CLK_QCOM && MFD_QCOM_RPM ++ select QCOM_RPMCC ++ help ++ The RPM (Resource Power Manager) is a dedicated hardware engine for ++ managing the shared SoC resources in order to keep the lowest power ++ profile. It communicates with other hardware subsystems via shared ++ memory and accepts clock requests, aggregates the requests and turns ++ the clocks on/off or scales them on demand. ++ Say Y if you want to support the clocks exposed by the RPM on ++ platforms such as ipq806x, msm8660, msm8960 etc. ++ + config QCOM_CLK_SMD_RPM + tristate "RPM over SMD based Clock Controller" + depends on COMMON_CLK_QCOM && QCOM_SMD_RPM +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -23,3 +23,4 @@ obj-$(CONFIG_MSM_GCC_8974) += gcc-msm897 + obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8960.o + obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o + obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o ++obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o +--- /dev/null ++++ b/drivers/clk/qcom/clk-rpm.c +@@ -0,0 +1,489 @@ ++/* ++ * Copyright (c) 2016, Linaro Limited ++ * Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++#define QCOM_RPM_MISC_CLK_TYPE 0x306b6c63 ++#define QCOM_RPM_SCALING_ENABLE_ID 0x2 ++ ++#define DEFINE_CLK_RPM(_platform, _name, _active, r_id) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_active, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_name, \ ++ .active_only = true, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define DEFINE_CLK_RPM_PXO_BRANCH(_platform, _name, _active, r_id, r) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .active_only = true, \ ++ .peer = &_platform##_##_active, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_name, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define DEFINE_CLK_RPM_CXO_BRANCH(_platform, _name, _active, r_id, r) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_active, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "cxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .active_only = true, \ ++ .peer = &_platform##_##_name, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "cxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define to_clk_rpm(_hw) container_of(_hw, struct clk_rpm, hw) ++ ++struct clk_rpm { ++ const int rpm_clk_id; ++ const bool active_only; ++ unsigned long rate; ++ bool enabled; ++ bool branch; ++ struct clk_rpm *peer; ++ struct clk_hw hw; ++ struct qcom_rpm *rpm; ++}; ++ ++struct rpm_cc { ++ struct qcom_rpm *rpm; ++ struct clk_hw_onecell_data data; ++ struct clk_hw *hws[]; ++}; ++ ++struct rpm_clk_desc { ++ struct clk_rpm **clks; ++ size_t num_clks; ++}; ++ ++static DEFINE_MUTEX(rpm_clk_lock); ++ ++static int clk_rpm_handoff(struct clk_rpm *r) ++{ ++ int ret; ++ u32 value = INT_MAX; ++ ++ ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, ++ r->rpm_clk_id, &value, 1); ++ if (ret) ++ return ret; ++ ret = qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, ++ r->rpm_clk_id, &value, 1); ++ if (ret) ++ return ret; ++ ++ return 0; ++} ++ ++static int clk_rpm_set_rate_active(struct clk_rpm *r, unsigned long rate) ++{ ++ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ ++ ++ return qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, ++ r->rpm_clk_id, &value, 1); ++} ++ ++static int clk_rpm_set_rate_sleep(struct clk_rpm *r, unsigned long rate) ++{ ++ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ ++ ++ return qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, ++ r->rpm_clk_id, &value, 1); ++} ++ ++static void to_active_sleep(struct clk_rpm *r, unsigned long rate, ++ unsigned long *active, unsigned long *sleep) ++{ ++ *active = rate; ++ ++ /* ++ * Active-only clocks don't care what the rate is during sleep. So, ++ * they vote for zero. ++ */ ++ if (r->active_only) ++ *sleep = 0; ++ else ++ *sleep = *active; ++} ++ ++static int clk_rpm_prepare(struct clk_hw *hw) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret = 0; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ /* Don't send requests to the RPM if the rate has not been set. */ ++ if (!r->rate) ++ goto out; ++ ++ to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ++ if (r->branch) ++ active_rate = !!active_rate; ++ ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ if (r->branch) ++ sleep_rate = !!sleep_rate; ++ ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ /* Undo the active set vote and restore it */ ++ ret = clk_rpm_set_rate_active(r, peer_rate); ++ ++out: ++ if (!ret) ++ r->enabled = true; ++ ++ mutex_unlock(&rpm_clk_lock); ++ ++ return ret; ++} ++ ++static void clk_rpm_unprepare(struct clk_hw *hw) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ if (!r->rate) ++ goto out; ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, &peer_rate, ++ &peer_sleep_rate); ++ ++ active_rate = r->branch ? !!peer_rate : peer_rate; ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->enabled = false; ++ ++out: ++ mutex_unlock(&rpm_clk_lock); ++} ++ ++static int clk_rpm_set_rate(struct clk_hw *hw, ++ unsigned long rate, unsigned long parent_rate) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long active_rate, sleep_rate; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ int ret = 0; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ if (!r->enabled) ++ goto out; ++ ++ to_active_sleep(r, rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->rate = rate; ++ ++out: ++ mutex_unlock(&rpm_clk_lock); ++ ++ return ret; ++} ++ ++static long clk_rpm_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *parent_rate) ++{ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate is requested. ++ */ ++ return rate; ++} ++ ++static unsigned long clk_rpm_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate was set. ++ */ ++ return r->rate; ++} ++ ++static const struct clk_ops clk_rpm_ops = { ++ .prepare = clk_rpm_prepare, ++ .unprepare = clk_rpm_unprepare, ++ .set_rate = clk_rpm_set_rate, ++ .round_rate = clk_rpm_round_rate, ++ .recalc_rate = clk_rpm_recalc_rate, ++}; ++ ++static const struct clk_ops clk_rpm_branch_ops = { ++ .prepare = clk_rpm_prepare, ++ .unprepare = clk_rpm_unprepare, ++ .round_rate = clk_rpm_round_rate, ++ .recalc_rate = clk_rpm_recalc_rate, ++}; ++ ++/* apq8064 */ ++DEFINE_CLK_RPM(apq8064, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK); ++DEFINE_CLK_RPM(apq8064, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK); ++DEFINE_CLK_RPM(apq8064, mmfab_clk, mmfab_a_clk, QCOM_RPM_MM_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, mmfpb_clk, mmfpb_a_clk, QCOM_RPM_MMFPB_CLK); ++DEFINE_CLK_RPM(apq8064, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); ++DEFINE_CLK_RPM(apq8064, qdss_clk, qdss_a_clk, QCOM_RPM_QDSS_CLK); ++ ++static struct clk_rpm *apq8064_clks[] = { ++ [RPM_APPS_FABRIC_CLK] = &apq8064_afab_clk, ++ [RPM_APPS_FABRIC_A_CLK] = &apq8064_afab_a_clk, ++ [RPM_CFPB_CLK] = &apq8064_cfpb_clk, ++ [RPM_CFPB_A_CLK] = &apq8064_cfpb_a_clk, ++ [RPM_DAYTONA_FABRIC_CLK] = &apq8064_daytona_clk, ++ [RPM_DAYTONA_FABRIC_A_CLK] = &apq8064_daytona_a_clk, ++ [RPM_EBI1_CLK] = &apq8064_ebi1_clk, ++ [RPM_EBI1_A_CLK] = &apq8064_ebi1_a_clk, ++ [RPM_MM_FABRIC_CLK] = &apq8064_mmfab_clk, ++ [RPM_MM_FABRIC_A_CLK] = &apq8064_mmfab_a_clk, ++ [RPM_MMFPB_CLK] = &apq8064_mmfpb_clk, ++ [RPM_MMFPB_A_CLK] = &apq8064_mmfpb_a_clk, ++ [RPM_SYS_FABRIC_CLK] = &apq8064_sfab_clk, ++ [RPM_SYS_FABRIC_A_CLK] = &apq8064_sfab_a_clk, ++ [RPM_SFPB_CLK] = &apq8064_sfpb_clk, ++ [RPM_SFPB_A_CLK] = &apq8064_sfpb_a_clk, ++ [RPM_QDSS_CLK] = &apq8064_qdss_clk, ++ [RPM_QDSS_A_CLK] = &apq8064_qdss_a_clk, ++}; ++ ++static const struct rpm_clk_desc rpm_clk_apq8064 = { ++ .clks = apq8064_clks, ++ .num_clks = ARRAY_SIZE(apq8064_clks), ++}; ++ ++static const struct of_device_id rpm_clk_match_table[] = { ++ { .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, rpm_clk_match_table); ++ ++static int rpm_clk_probe(struct platform_device *pdev) ++{ ++ struct clk_hw **hws; ++ struct rpm_cc *rcc; ++ struct clk_hw_onecell_data *data; ++ int ret; ++ size_t num_clks, i; ++ struct qcom_rpm *rpm; ++ struct clk_rpm **rpm_clks; ++ const struct rpm_clk_desc *desc; ++ ++ rpm = dev_get_drvdata(pdev->dev.parent); ++ if (!rpm) { ++ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); ++ return -ENODEV; ++ } ++ ++ desc = of_device_get_match_data(&pdev->dev); ++ if (!desc) ++ return -EINVAL; ++ ++ rpm_clks = desc->clks; ++ num_clks = desc->num_clks; ++ ++ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, ++ GFP_KERNEL); ++ if (!rcc) ++ return -ENOMEM; ++ ++ hws = rcc->hws; ++ data = &rcc->data; ++ data->num = num_clks; ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_clks[i]) ++ continue; ++ ++ rpm_clks[i]->rpm = rpm; ++ ++ ret = clk_rpm_handoff(rpm_clks[i]); ++ if (ret) ++ goto err; ++ } ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_clks[i]) { ++ data->hws[i] = ERR_PTR(-ENOENT); ++ continue; ++ } ++ ++ ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw); ++ if (ret) ++ goto err; ++ } ++ ++ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, ++ data); ++ if (ret) ++ goto err; ++ ++ return 0; ++err: ++ dev_err(&pdev->dev, "Error registering RPM Clock driver (%d)\n", ret); ++ return ret; ++} ++ ++static int rpm_clk_remove(struct platform_device *pdev) ++{ ++ of_clk_del_provider(pdev->dev.of_node); ++ return 0; ++} ++ ++static struct platform_driver rpm_clk_driver = { ++ .driver = { ++ .name = "qcom-clk-rpm", ++ .of_match_table = rpm_clk_match_table, ++ }, ++ .probe = rpm_clk_probe, ++ .remove = rpm_clk_remove, ++}; ++ ++static int __init rpm_clk_init(void) ++{ ++ return platform_driver_register(&rpm_clk_driver); ++} ++core_initcall(rpm_clk_init); ++ ++static void __exit rpm_clk_exit(void) ++{ ++ platform_driver_unregister(&rpm_clk_driver); ++} ++module_exit(rpm_clk_exit); ++ ++MODULE_DESCRIPTION("Qualcomm RPM Clock Controller Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:qcom-clk-rpm"); +--- a/include/dt-bindings/clock/qcom,rpmcc.h ++++ b/include/dt-bindings/clock/qcom,rpmcc.h +@@ -14,6 +14,30 @@ + #ifndef _DT_BINDINGS_CLK_MSM_RPMCC_H + #define _DT_BINDINGS_CLK_MSM_RPMCC_H + ++/* apq8064 */ ++#define RPM_PXO_CLK 0 ++#define RPM_PXO_A_CLK 1 ++#define RPM_CXO_CLK 2 ++#define RPM_CXO_A_CLK 3 ++#define RPM_APPS_FABRIC_CLK 4 ++#define RPM_APPS_FABRIC_A_CLK 5 ++#define RPM_CFPB_CLK 6 ++#define RPM_CFPB_A_CLK 7 ++#define RPM_QDSS_CLK 8 ++#define RPM_QDSS_A_CLK 9 ++#define RPM_DAYTONA_FABRIC_CLK 10 ++#define RPM_DAYTONA_FABRIC_A_CLK 11 ++#define RPM_EBI1_CLK 12 ++#define RPM_EBI1_A_CLK 13 ++#define RPM_MM_FABRIC_CLK 14 ++#define RPM_MM_FABRIC_A_CLK 15 ++#define RPM_MMFPB_CLK 16 ++#define RPM_MMFPB_A_CLK 17 ++#define RPM_SYS_FABRIC_CLK 18 ++#define RPM_SYS_FABRIC_A_CLK 19 ++#define RPM_SFPB_CLK 20 ++#define RPM_SFPB_A_CLK 21 ++ + /* msm8916 */ + #define RPM_SMD_XO_CLK_SRC 0 + #define RPM_SMD_XO_A_CLK_SRC 1 -- cgit v1.2.3