Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
firmware: zynqmp: Add helper API to self discovery the device
Add API to get SoC version and family info.
Signed-off-by: Harsh Jain <h.jain@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Harsh Jain
and committed by
Herbert Xu
465d7831
c7a768f5
+50
+31
drivers/firmware/xilinx/zynqmp-crypto.c
+31
drivers/firmware/xilinx/zynqmp-crypto.c
···
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return zynqmp_pm_invoke_fn(PM_SECURE_SHA, NULL, 4, upper_addr, lower_addr, size, flags);
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}
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EXPORT_SYMBOL_GPL(zynqmp_pm_sha_hash);
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/**
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* xlnx_get_crypto_dev_data() - Get crypto dev data of platform
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* @feature_map: List of available feature map of all platform
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*
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* Return: Returns crypto dev data, either address crypto dev or ERR PTR
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*/
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void *xlnx_get_crypto_dev_data(struct xlnx_feature *feature_map)
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{
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struct xlnx_feature *feature;
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u32 pm_family_code;
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int ret;
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/* Get the Family code and sub family code of platform */
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ret = zynqmp_pm_get_family_info(&pm_family_code);
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if (ret < 0)
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return ERR_PTR(ret);
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feature = feature_map;
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for (; feature->family; feature++) {
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if (feature->family == pm_family_code) {
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ret = zynqmp_pm_feature(feature->feature_id);
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if (ret < 0)
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return ERR_PTR(ret);
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return feature->data;
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}
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}
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return ERR_PTR(-ENODEV);
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}
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EXPORT_SYMBOL_GPL(xlnx_get_crypto_dev_data);
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include/linux/firmware/xlnx-zynqmp-crypto.h
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include/linux/firmware/xlnx-zynqmp-crypto.h
···
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#ifndef __FIRMWARE_XLNX_ZYNQMP_CRYPTO_H__
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#define __FIRMWARE_XLNX_ZYNQMP_CRYPTO_H__
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/**
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* struct xlnx_feature - Feature data
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* @family: Family code of platform
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* @subfamily: Subfamily code of platform
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* @feature_id: Feature id of module
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* @data: Collection of all supported platform data
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*/
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struct xlnx_feature {
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u32 family;
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u32 feature_id;
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void *data;
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};
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#if IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE)
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int zynqmp_pm_aes_engine(const u64 address, u32 *out);
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int zynqmp_pm_sha_hash(const u64 address, const u32 size, const u32 flags);
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void *xlnx_get_crypto_dev_data(struct xlnx_feature *feature_map);
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#else
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static inline int zynqmp_pm_aes_engine(const u64 address, u32 *out)
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{
···
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const u32 flags)
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{
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return -ENODEV;
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}
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static inline void *xlnx_get_crypto_dev_data(struct xlnx_feature *feature_map)
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{
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return ERR_PTR(-ENODEV);
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}
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#endif
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