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firmware: qcom: scm: Peripheral Authentication Service

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This adds the Peripheral Authentication Service (PAS) interface to the
Qualcomm SCM interface. The API is used to authenticate and boot a range
of external processors in various Qualcomm platforms.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Bjorn Andersson
2015-09-23 12:56:12 -07:00
committed by Andy Gross
parent 3680a4a974
commit f01e90fe34
5 changed files with 334 additions and 0 deletions
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89
drivers/firmware/qcom_scm-32.c
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@@ -458,3 +458,92 @@ int __qcom_scm_hdcp_req(struct device *dev, struct qcom_scm_hdcp_req *req,
void __qcom_scm_init(void)
{
}
bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral)
{
__le32 out;
__le32 in;
int ret;
in = cpu_to_le32(peripheral);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
QCOM_SCM_PAS_IS_SUPPORTED_CMD,
&in, sizeof(in),
&out, sizeof(out));
return ret ? false : !!out;
}
int __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,
dma_addr_t metadata_phys)
{
__le32 scm_ret;
int ret;
struct {
__le32 proc;
__le32 image_addr;
} request;
request.proc = cpu_to_le32(peripheral);
request.image_addr = cpu_to_le32(metadata_phys);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
QCOM_SCM_PAS_INIT_IMAGE_CMD,
&request, sizeof(request),
&scm_ret, sizeof(scm_ret));
return ret ? : le32_to_cpu(scm_ret);
}
int __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,
phys_addr_t addr, phys_addr_t size)
{
__le32 scm_ret;
int ret;
struct {
__le32 proc;
__le32 addr;
__le32 len;
} request;
request.proc = cpu_to_le32(peripheral);
request.addr = cpu_to_le32(addr);
request.len = cpu_to_le32(size);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
QCOM_SCM_PAS_MEM_SETUP_CMD,
&request, sizeof(request),
&scm_ret, sizeof(scm_ret));
return ret ? : le32_to_cpu(scm_ret);
}
int __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral)
{
__le32 out;
__le32 in;
int ret;
in = cpu_to_le32(peripheral);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
QCOM_SCM_PAS_AUTH_AND_RESET_CMD,
&in, sizeof(in),
&out, sizeof(out));
return ret ? : le32_to_cpu(out);
}
int __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral)
{
__le32 out;
__le32 in;
int ret;
in = cpu_to_le32(peripheral);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
QCOM_SCM_PAS_SHUTDOWN_CMD,
&in, sizeof(in),
&out, sizeof(out));
return ret ? : le32_to_cpu(out);
}