diff options
Diffstat (limited to 'target/linux/qualcommax/patches-6.6/0113-remoteproc-qcom-Add-secure-PIL-support.patch')
| -rw-r--r-- | target/linux/qualcommax/patches-6.6/0113-remoteproc-qcom-Add-secure-PIL-support.patch | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/target/linux/qualcommax/patches-6.6/0113-remoteproc-qcom-Add-secure-PIL-support.patch b/target/linux/qualcommax/patches-6.6/0113-remoteproc-qcom-Add-secure-PIL-support.patch new file mode 100644 index 0000000000..0328efc041 --- /dev/null +++ b/target/linux/qualcommax/patches-6.6/0113-remoteproc-qcom-Add-secure-PIL-support.patch @@ -0,0 +1,143 @@ +From 7358d42dfbdfdb5d4f1d0d4c2e5c2bb4143a29b0 Mon Sep 17 00:00:00 2001 +From: Gokul Sriram Palanisamy <gokulsri@codeaurora.org> +Date: Sat, 30 Jan 2021 10:50:06 +0530 +Subject: [PATCH] remoteproc: qcom: Add secure PIL support + +IPQ8074 uses secure PIL. Hence, adding the support for the same. + +Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org> +Signed-off-by: Sricharan R <sricharan@codeaurora.org> +Signed-off-by: Nikhil Prakash V <nprakash@codeaurora.org> +--- + drivers/remoteproc/qcom_q6v5_wcss.c | 43 +++++++++++++++++++++++++++-- + 1 file changed, 40 insertions(+), 3 deletions(-) + +--- a/drivers/remoteproc/qcom_q6v5_wcss.c ++++ b/drivers/remoteproc/qcom_q6v5_wcss.c +@@ -18,6 +18,7 @@ + #include <linux/regulator/consumer.h> + #include <linux/reset.h> + #include <linux/soc/qcom/mdt_loader.h> ++#include <linux/qcom_scm.h> + #include "qcom_common.h" + #include "qcom_pil_info.h" + #include "qcom_q6v5.h" +@@ -86,6 +87,9 @@ + #define TCSR_WCSS_CLK_ENABLE 0x14 + + #define MAX_HALT_REG 3 ++ ++#define WCNSS_PAS_ID 6 ++ + enum { + WCSS_IPQ8074, + WCSS_QCS404, +@@ -134,6 +138,7 @@ struct q6v5_wcss { + unsigned int crash_reason_smem; + u32 version; + bool requires_force_stop; ++ bool need_mem_protection; + + struct qcom_rproc_glink glink_subdev; + struct qcom_rproc_ssr ssr_subdev; +@@ -152,6 +157,7 @@ struct wcss_data { + int ssctl_id; + const struct rproc_ops *ops; + bool requires_force_stop; ++ bool need_mem_protection; + }; + + static int q6v5_wcss_reset(struct q6v5_wcss *wcss) +@@ -251,6 +257,15 @@ static int q6v5_wcss_start(struct rproc + + qcom_q6v5_prepare(&wcss->q6v5); + ++ if (wcss->need_mem_protection) { ++ ret = qcom_scm_pas_auth_and_reset(WCNSS_PAS_ID); ++ if (ret) { ++ dev_err(wcss->dev, "wcss_reset failed\n"); ++ return ret; ++ } ++ goto wait_for_reset; ++ } ++ + /* Release Q6 and WCSS reset */ + ret = reset_control_deassert(wcss->wcss_reset); + if (ret) { +@@ -285,6 +300,7 @@ static int q6v5_wcss_start(struct rproc + if (ret) + goto wcss_q6_reset; + ++wait_for_reset: + ret = qcom_q6v5_wait_for_start(&wcss->q6v5, 5 * HZ); + if (ret == -ETIMEDOUT) + dev_err(wcss->dev, "start timed out\n"); +@@ -718,6 +734,15 @@ static int q6v5_wcss_stop(struct rproc * + struct q6v5_wcss *wcss = rproc->priv; + int ret; + ++ if (wcss->need_mem_protection) { ++ ret = qcom_scm_pas_shutdown(WCNSS_PAS_ID); ++ if (ret) { ++ dev_err(wcss->dev, "not able to shutdown\n"); ++ return ret; ++ } ++ goto pas_done; ++ } ++ + /* WCSS powerdown */ + if (wcss->requires_force_stop) { + ret = qcom_q6v5_request_stop(&wcss->q6v5, NULL); +@@ -742,6 +767,7 @@ static int q6v5_wcss_stop(struct rproc * + return ret; + } + ++pas_done: + clk_disable_unprepare(wcss->prng_clk); + qcom_q6v5_unprepare(&wcss->q6v5); + +@@ -765,9 +791,15 @@ static int q6v5_wcss_load(struct rproc * + struct q6v5_wcss *wcss = rproc->priv; + int ret; + +- ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware, +- 0, wcss->mem_region, wcss->mem_phys, +- wcss->mem_size, &wcss->mem_reloc); ++ if (wcss->need_mem_protection) ++ ret = qcom_mdt_load(wcss->dev, fw, rproc->firmware, ++ WCNSS_PAS_ID, wcss->mem_region, ++ wcss->mem_phys, wcss->mem_size, ++ &wcss->mem_reloc); ++ else ++ ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware, ++ 0, wcss->mem_region, wcss->mem_phys, ++ wcss->mem_size, &wcss->mem_reloc); + if (ret) + return ret; + +@@ -1036,6 +1068,9 @@ static int q6v5_wcss_probe(struct platfo + if (!desc) + return -EINVAL; + ++ if (desc->need_mem_protection && !qcom_scm_is_available()) ++ return -EPROBE_DEFER; ++ + rproc = rproc_alloc(&pdev->dev, pdev->name, desc->ops, + desc->firmware_name, sizeof(*wcss)); + if (!rproc) { +@@ -1049,6 +1084,7 @@ static int q6v5_wcss_probe(struct platfo + + wcss->version = desc->version; + wcss->requires_force_stop = desc->requires_force_stop; ++ wcss->need_mem_protection = desc->need_mem_protection; + + ret = q6v5_wcss_init_mmio(wcss, pdev); + if (ret) +@@ -1120,6 +1156,7 @@ static const struct wcss_data wcss_ipq80 + .wcss_q6_reset_required = true, + .ops = &q6v5_wcss_ipq8074_ops, + .requires_force_stop = true, ++ .need_mem_protection = true, + }; + + static const struct wcss_data wcss_qcs404_res_init = { |