firmware: xilinx: Add qspi firmware interface

Add support for QSPI ioctl functions and enums.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
Link: https://lore.kernel.org/r/20221011062040.12116-5-amit.kumar-mahapatra@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/firmware/xilinx/zynqmp.c

@@ -843,6 +843,13 @@ int zynqmp_pm_read_pggs(u32 index, u32 *value)
 }
 EXPORT_SYMBOL_GPL(zynqmp_pm_read_pggs);
 
+int zynqmp_pm_set_tapdelay_bypass(u32 index, u32 value)
+{
+	return zynqmp_pm_invoke_fn(PM_IOCTL, 0, IOCTL_SET_TAPDELAY_BYPASS,
+				   index, value, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_set_tapdelay_bypass);
+
 /**
  * zynqmp_pm_set_boot_health_status() - PM API for setting healthy boot status
  * @value:	Status value to be written

include/linux/firmware/xlnx-zynqmp.h

@@ -135,6 +135,7 @@ enum pm_ret_status {
 };
 
 enum pm_ioctl_id {
+	IOCTL_SET_TAPDELAY_BYPASS = 4,
 	IOCTL_SD_DLL_RESET = 6,
 	IOCTL_SET_SD_TAPDELAY = 7,
 	IOCTL_SET_PLL_FRAC_MODE = 8,
@@ -389,6 +390,18 @@ enum zynqmp_pm_shutdown_subtype {
 	ZYNQMP_PM_SHUTDOWN_SUBTYPE_SYSTEM = 2,
 };
 
+enum tap_delay_signal_type {
+	PM_TAPDELAY_NAND_DQS_IN = 0,
+	PM_TAPDELAY_NAND_DQS_OUT = 1,
+	PM_TAPDELAY_QSPI = 2,
+	PM_TAPDELAY_MAX = 3,
+};
+
+enum tap_delay_bypass_ctrl {
+	PM_TAPDELAY_BYPASS_DISABLE = 0,
+	PM_TAPDELAY_BYPASS_ENABLE = 1,
+};
+
 enum ospi_mux_select_type {
 	PM_OSPI_MUX_SEL_DMA = 0,
 	PM_OSPI_MUX_SEL_LINEAR = 1,
@@ -484,6 +497,7 @@ int zynqmp_pm_write_ggs(u32 index, u32 value);
 int zynqmp_pm_read_ggs(u32 index, u32 *value);
 int zynqmp_pm_write_pggs(u32 index, u32 value);
 int zynqmp_pm_read_pggs(u32 index, u32 *value);
+int zynqmp_pm_set_tapdelay_bypass(u32 index, u32 value);
 int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
 int zynqmp_pm_set_boot_health_status(u32 value);
 int zynqmp_pm_pinctrl_request(const u32 pin);
@@ -696,6 +710,11 @@ static inline int zynqmp_pm_read_pggs(u32 index, u32 *value)
 	return -ENODEV;
 }
 
+static inline int zynqmp_pm_set_tapdelay_bypass(u32 index, u32 value)
+{
+	return -ENODEV;
+}
+
 static inline int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype)
 {
 	return -ENODEV;