From: lukas.funke-oss@weidmueller.com
To: u-boot@lists.denx.de
Cc: Michal Simek <michal.simek@amd.com>,
Lukas Funke <lukas.funke@weidmueller.com>,
Algapally Santosh Sagar <santoshsagar.algapally@amd.com>,
Ashok Reddy Soma <ashok.reddy.soma@amd.com>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Qu Wenruo <wqu@suse.com>,
Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>,
Stefan Roese <sr@denx.de>, Tanmay Shah <tanmay.shah@amd.com>,
Tom Rini <trini@konsulko.com>,
Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Subject: [PATCH 1/3] firmware: zynqmp: Add support to access efuses
Date: Tue, 14 May 2024 16:04:14 +0200 [thread overview]
Message-ID: <20240514140416.156747-2-lukas.funke-oss@weidmueller.com> (raw)
In-Reply-To: <20240514140416.156747-1-lukas.funke-oss@weidmueller.com>
From: Lukas Funke <lukas.funke@weidmueller.com>
Add functions to access efuses through PMU firmware
interface.
Signed-off-by: Lukas Funke <lukas.funke@weidmueller.com>
---
drivers/firmware/firmware-zynqmp.c | 31 ++++++++++++++++++++++++++++++
include/zynqmp_firmware.h | 2 ++
2 files changed, 33 insertions(+)
diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c
index f99507d86c6..7483f2a8709 100644
--- a/drivers/firmware/firmware-zynqmp.c
+++ b/drivers/firmware/firmware-zynqmp.c
@@ -210,6 +210,37 @@ int zynqmp_pm_feature(const u32 api_id)
return ret_payload[1] & FIRMWARE_VERSION_MASK;
}
+int zynqmp_pm_get_chipid(u32 *idcode, u32 *version)
+{
+ int ret;
+ u32 ret_payload[PAYLOAD_ARG_CNT];
+
+ if (!idcode || !version)
+ return -EINVAL;
+
+ ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0, ret_payload);
+ *idcode = ret_payload[1];
+ *version = ret_payload[2];
+
+ return ret;
+}
+
+int zynqmp_pm_efuse_access(const u64 address, u32 *out)
+{
+ int ret;
+ u32 ret_payload[PAYLOAD_ARG_CNT];
+
+ if (!out)
+ return -EINVAL;
+
+ ret = xilinx_pm_request(PM_EFUSE_ACCESS, upper_32_bits(address),
+ lower_32_bits(address), 0, 0, ret_payload);
+
+ *out = ret_payload[1];
+
+ return ret;
+}
+
int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id)
{
int ret;
diff --git a/include/zynqmp_firmware.h b/include/zynqmp_firmware.h
index 73198a6a6ea..7f18b4d59bf 100644
--- a/include/zynqmp_firmware.h
+++ b/include/zynqmp_firmware.h
@@ -453,6 +453,8 @@ int xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2,
int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value);
int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config,
u32 value);
+int zynqmp_pm_get_chipid(u32 *idcode, u32 *version);
+int zynqmp_pm_efuse_access(const u64 address, u32 *out);
int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id);
int zynqmp_mmio_read(const u32 address, u32 *value);
int zynqmp_mmio_write(const u32 address, const u32 mask, const u32 value);
--
2.30.2
next prev parent reply other threads:[~2024-05-14 14:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-14 14:04 [PATCH 0/3] Add eFuse access for ZynqMP lukas.funke-oss
2024-05-14 14:04 ` lukas.funke-oss [this message]
2024-05-15 6:04 ` [PATCH 1/3] firmware: zynqmp: Add support to access efuses Stefan Roese
2024-05-14 14:04 ` [PATCH 2/3] amd64: zynqmp: Add command to program efuses lukas.funke-oss
2024-05-14 14:04 ` [PATCH 3/3] drivers: misc: Add driver to access ZynqMP efuses lukas.funke-oss
2024-05-15 6:12 ` Stefan Roese
2024-05-15 6:33 ` Lukas Funke
2024-05-15 9:19 ` Stefan Roese
2024-05-15 7:08 ` [PATCH 0/3] Add eFuse access for ZynqMP Marek Behún
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