[PATCH v4 5/6] remoteproc: qcom: Add support for q6v5-wcss pil
From: Sricharan R <hidden>
Date: 2017-11-09 14:46:58
Also in:
linux-arm-msm, linux-remoteproc, lkml
Subsystem:
arm/qualcomm mailing list, open firmware and flattened device tree bindings, remote processor (remoteproc) subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Mathieu Poirier, Linus Torvalds
IPQ8074 has an integrated Hexagon dsp core q6v5 and a wireless lan (Lithium) IP. An mdt type single image format is used for the firmware. So the mdt_load function can be directly used to load the firmware. Also add the relevant resets required for this core. Signed-off-by: Sricharan R <redacted> --- .../devicetree/bindings/remoteproc/qcom,q6v5.txt | 7 ++- drivers/remoteproc/Kconfig | 1 + drivers/remoteproc/qcom_q6v5_pil.c | 53 +++++++++++++++++++++- 3 files changed, 59 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index 00d3d58..d52d05e 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt@@ -11,6 +11,7 @@ on the Qualcomm Hexagon core. "qcom,msm8916-mss-pil", "qcom,msm8974-mss-pil" "qcom,msm8996-mss-pil" + "qcom,ipq8074-wcss-pil" - reg: Usage: required
@@ -49,11 +50,15 @@ on the Qualcomm Hexagon core. Usage: required Value type: <phandle> Definition: reference to the reset-controller for the modem sub-system + reference to the list of 3 reset-controllers for the + wcss sub-system - reset-names: Usage: required Value type: <stringlist> - Definition: must be "mss_restart" + Definition: must be "mss_restart" for the modem sub-system + Definition: must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset" + for the wcss syb-system - cx-supply: - mss-supply:
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index bf04479..e7e9979 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig@@ -113,6 +113,7 @@ config QCOM_Q6V5_PIL select MFD_SYSCON select QCOM_RPROC_COMMON select QCOM_SCM + select QCOM_MDT_LOADER help Say y here to support the Qualcomm Peripherial Image Loader for the Hexagon V5 based remote processors.
diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 75ff02d..3c401ff 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c@@ -129,6 +129,9 @@ struct q6v5 { u32 halt_nc; struct reset_control *mss_restart; + struct reset_control *wcss_aon_reset; + struct reset_control *wcss_reset; + struct reset_control *wcss_q6_reset; struct qcom_smem_state *state; unsigned stop_bit;
@@ -181,6 +184,7 @@ enum { MSS_MSM8916, MSS_MSM8974, MSS_MSM8996, + WCSS_IPQ8074, }; static int q6v5_regulator_init(struct device *dev, struct reg_info *regs,
@@ -354,6 +358,21 @@ static int q6v5_load(struct rproc *rproc, const struct firmware *fw) return 0; } +static int q6v5_wcss_load(struct rproc *rproc, const struct firmware *fw) +{ + struct q6v5 *qproc = rproc->priv; + + return qcom_mdt_load_no_init(qproc->dev, fw, rproc->firmware, + 0, qproc->mba_region, qproc->mba_phys, + qproc->mba_size); +} + +static const struct rproc_fw_ops q6v5_wcss_fw_ops = { + .find_rsc_table = q6v5_find_rsc_table, + .load = q6v5_wcss_load, + .get_boot_addr = rproc_elf_get_boot_addr, +}; + static const struct rproc_fw_ops q6v5_fw_ops = { .find_rsc_table = q6v5_find_rsc_table, .load = q6v5_load,
@@ -1057,6 +1076,26 @@ static int q6v5_init_clocks(struct device *dev, struct clk **clks, return i; } +static int q6v5_wcss_init_reset(struct q6v5 *qproc) +{ + qproc->wcss_aon_reset = devm_reset_control_get(qproc->dev, + "wcss_aon_reset"); + if (IS_ERR(qproc->wcss_aon_reset)) + return PTR_ERR(qproc->wcss_aon_reset); + + qproc->wcss_reset = devm_reset_control_get(qproc->dev, + "wcss_reset"); + if (IS_ERR(qproc->wcss_reset)) + return PTR_ERR(qproc->wcss_reset); + + qproc->wcss_q6_reset = devm_reset_control_get(qproc->dev, + "wcss_q6_reset"); + if (IS_ERR(qproc->wcss_q6_reset)) + return PTR_ERR(qproc->wcss_q6_reset); + + return 0; +} + static int q6v5_init_reset(struct q6v5 *qproc) { qproc->mss_restart = devm_reset_control_get_exclusive(qproc->dev,
@@ -1116,6 +1155,9 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc) return -EBUSY; } + if (qproc->version == WCSS_IPQ8074) + return 0; + child = of_get_child_by_name(qproc->dev->of_node, "mpss"); node = of_parse_phandle(child, "memory-region", 0); ret = of_address_to_resource(node, 0, &r);
@@ -1159,6 +1201,7 @@ static int q6v5_probe(struct platform_device *pdev) qproc = (struct q6v5 *)rproc->priv; qproc->dev = &pdev->dev; qproc->rproc = rproc; + qproc->version = desc->version; platform_set_drvdata(pdev, qproc); init_completion(&qproc->start_done);
@@ -1208,7 +1251,6 @@ static int q6v5_probe(struct platform_device *pdev) if (ret) goto free_rproc; - qproc->version = desc->version; qproc->need_mem_protection = desc->need_mem_protection; ret = q6v5_request_irq(qproc, pdev, "wdog", q6v5_wdog_interrupt); if (ret < 0)
@@ -1358,11 +1400,20 @@ static int q6v5_remove(struct platform_device *pdev) .ops = &q6v5_ops, }; +static const struct rproc_hexagon_res ipq8074_wcss = { + .hexagon_mba_image = "IPQ8074/q6_fw.mdt", + .need_mem_protection = false, + .version = WCSS_IPQ8074, + .init_reset = q6v5_wcss_init_reset, + .fw_ops = &q6v5_wcss_fw_ops, +}; + static const struct of_device_id q6v5_of_match[] = { { .compatible = "qcom,q6v5-pil", .data = &msm8916_mss}, { .compatible = "qcom,msm8916-mss-pil", .data = &msm8916_mss}, { .compatible = "qcom,msm8974-mss-pil", .data = &msm8974_mss}, { .compatible = "qcom,msm8996-mss-pil", .data = &msm8996_mss}, + { .compatible = "qcom,ipq8074-wcss-pil", .data = &ipq8074_wcss}, { }, }; MODULE_DEVICE_TABLE(of, q6v5_of_match);
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