Commit 0dc64c2b authored by Manish Narani's avatar Manish Narani Committed by Ulf Hansson
Browse files

firmware: xilinx: Add DLL reset support 



SD DLL resets are required for some of the operations on ZynqMP platform.
Add DLL reset support in ZynqMP firmware driver for SD DLL reset.

Signed-off-by: default avatarManish Narani <manish.narani@xilinx.com>
Acked-by: default avatarMichal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/1579602095-30060-3-git-send-email-manish.narani@xilinx.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 93660d83

drivers/firmware/xilinx/zynqmp.c

+1 −0
Original line number Diff line number Diff line
@@ -512,6 +512,7 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) 
static inline int zynqmp_is_valid_ioctl(u32 ioctl_id)

{

	switch (ioctl_id) {

	case IOCTL_SD_DLL_RESET:

	case IOCTL_SET_SD_TAPDELAY:

	case IOCTL_SET_PLL_FRAC_MODE:

	case IOCTL_GET_PLL_FRAC_MODE:

include/linux/firmware/xlnx-zynqmp.h

+8 −1
Original line number Diff line number Diff line
@@ -100,7 +100,8 @@ enum pm_ret_status { 
};



enum pm_ioctl_id {

	IOCTL_SET_SD_TAPDELAY = 7,

	IOCTL_SD_DLL_RESET = 6,

	IOCTL_SET_SD_TAPDELAY,

	IOCTL_SET_PLL_FRAC_MODE,

	IOCTL_GET_PLL_FRAC_MODE,

	IOCTL_SET_PLL_FRAC_DATA,
@@ -271,6 +272,12 @@ enum tap_delay_type { 
	PM_TAPDELAY_OUTPUT,

};



enum dll_reset_type {

	PM_DLL_RESET_ASSERT,

	PM_DLL_RESET_RELEASE,

	PM_DLL_RESET_PULSE,

};



/**

 * struct zynqmp_pm_query_data - PM query data

 * @qid:	query ID