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authorThomas Haemmerle <thomas.haemmerle@wolfvision.net>2019-10-25 12:55:41 +0000
committerSascha Hauer <s.hauer@pengutronix.de>2019-10-28 11:58:37 +0100
commitaf81b650450ff6996624047ffaa121bfe99a5f03 (patch)
tree5fcb03bc195c9a0bd9c8f513df9762b1a2b06fa7
parent22d2f676578e0051d78f5b37b7876473083b2dea (diff)
downloadbarebox-af81b650450ff6996624047ffaa121bfe99a5f03.tar.gz
firmware-zynqmp: extend driver with fpga relavant functions
Port functions from xlnx-linux to get FPGA status and invoke bitstream loading. Signed-off-by: Thomas Haemmerle <thomas.haemmerle@wolfvision.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/mach-zynqmp/firmware-zynqmp.c48
-rw-r--r--arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h14
2 files changed, 60 insertions, 2 deletions
diff --git a/arch/arm/mach-zynqmp/firmware-zynqmp.c b/arch/arm/mach-zynqmp/firmware-zynqmp.c
index d91dcb0..6123aa1 100644
--- a/arch/arm/mach-zynqmp/firmware-zynqmp.c
+++ b/arch/arm/mach-zynqmp/firmware-zynqmp.c
@@ -18,7 +18,6 @@
#include <mach/firmware-zynqmp.h>
-#define ZYNQMP_PM_VERSION(MAJOR, MINOR) ((MAJOR << 16) | MINOR)
#define ZYNQMP_TZ_VERSION(MAJOR, MINOR) ((MAJOR << 16) | MINOR)
#define ZYNQMP_PM_VERSION_MAJOR 1
@@ -504,6 +503,51 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
arg1, arg2, out);
}
+/**
+ * zynqmp_pm_fpga_load - Perform the fpga load
+ * @address: Address to write to
+ * @size: pl bitstream size
+ * @flags: Flags are used to specify the type of Bitstream file -
+ * defined in ZYNQMP_FPGA_BIT_*-macros
+ *
+ * This function provides access to xilfpga library to transfer
+ * the required bitstream into PL.
+ *
+ * Return: Returns status, either success or error+reason
+ */
+static int zynqmp_pm_fpga_load(u64 address, u32 size, u32 flags)
+{
+ if (!address || !size)
+ return -EINVAL;
+
+ return zynqmp_pm_invoke_fn(PM_FPGA_LOAD,
+ lower_32_bits(address), upper_32_bits(address),
+ size, flags, NULL);
+}
+
+/**
+ * zynqmp_pm_fpga_get_status - Read value from PCAP status register
+ * @value: Value to read
+ *
+ * This function provides access to the xilfpga library to get
+ * the PCAP status
+ *
+ * Return: Returns status, either success or error+reason
+ */
+static int zynqmp_pm_fpga_get_status(u32 *value)
+{
+ u32 ret_payload[PAYLOAD_ARG_CNT];
+ int ret = 0;
+
+ if (!value)
+ return -EINVAL;
+
+ ret = zynqmp_pm_invoke_fn(PM_FPGA_GET_STATUS, 0, 0, 0, 0, ret_payload);
+ *value = ret_payload[1];
+
+ return ret;
+}
+
static const struct zynqmp_eemi_ops eemi_ops = {
.get_api_version = zynqmp_pm_get_api_version,
.query_data = zynqmp_pm_query_data,
@@ -517,6 +561,8 @@ static const struct zynqmp_eemi_ops eemi_ops = {
.clock_setparent = zynqmp_pm_clock_setparent,
.clock_getparent = zynqmp_pm_clock_getparent,
.ioctl = zynqmp_pm_ioctl,
+ .fpga_getstatus = zynqmp_pm_fpga_get_status,
+ .fpga_load = zynqmp_pm_fpga_load,
};
/**
diff --git a/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h b/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h
index 9e7a2e3..a044822 100644
--- a/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h
+++ b/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h
@@ -15,7 +15,17 @@
#ifndef FIRMWARE_ZYNQMP_H_
#define FIRMWARE_ZYNQMP_H_
-#define PAYLOAD_ARG_CNT 4
+#define PAYLOAD_ARG_CNT 4
+
+#define ZYNQMP_PM_VERSION(MAJOR, MINOR) ((MAJOR << 16) | MINOR)
+
+#define ZYNQMP_FPGA_BIT_AUTH_DDR BIT(1)
+#define ZYNQMP_FPGA_BIT_AUTH_OCM BIT(2)
+#define ZYNQMP_FPGA_BIT_ENC_USR_KEY BIT(3)
+#define ZYNQMP_FPGA_BIT_ENC_DEV_KEY BIT(4)
+#define ZYNQMP_FPGA_BIT_ONLY_BIN BIT(5)
+
+#define ZYNQMP_PCAP_STATUS_FPGA_DONE BIT(3)
enum pm_ioctl_id {
IOCTL_SET_PLL_FRAC_MODE = 8,
@@ -61,6 +71,8 @@ struct zynqmp_eemi_ops {
int (*clock_setparent)(u32 clock_id, u32 parent_id);
int (*clock_getparent)(u32 clock_id, u32 *parent_id);
int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out);
+ int (*fpga_getstatus)(u32 *status);
+ int (*fpga_load)(u64 address, u32 size, u32 flags);
};
const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void);