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firmware: xilinx: Add DLL reset support

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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: Manish Narani <manish.narani@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/1579602095-30060-3-git-send-email-manish.narani@xilinx.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Manish Narani 2020-01-21 15:51:33 +05:30 committed by Ulf Hansson
parent 93660d837f
commit 0dc64c2b94
2 changed files with 9 additions and 1 deletions
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1
drivers/firmware/xilinx/zynqmp.c
View File

@ -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:

9
include/linux/firmware/xlnx-zynqmp.h
View File

@ -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