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Signed-off-by: Nava kishore Manne --- Changes for v2: -None. Changes for v1: -None. Changes for RFC-V3: -None. Changes for RFC-V2: -New patch. drivers/firmware/xilinx/zynqmp.c | 40 +++++++++++ include/linux/firmware/xlnx-zynqmp.h | 136 +++++++++++++++++++++++++++++++++++ 2 files changed, 176 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 84b3fd2..cd13b06 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -428,6 +428,44 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) return ret; } +/** + * zynqmp_pm_reset_assert - Request setting of reset (1 - assert, 0 - release) + * @reset: Reset to be configured + * @assert_flag: Flag stating should reset be asserted (1) or + * released (0) + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_reset_assert(const enum zynqmp_pm_reset reset, + const enum zynqmp_pm_reset_action assert_flag) +{ + return zynqmp_pm_invoke_fn(PM_RESET_ASSERT, reset, assert_flag, + 0, 0, NULL); +} + +/** + * zynqmp_pm_reset_get_status - Get status of the reset + * @reset: Reset whose status should be returned + * @status: Returned status + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, + u32 *status) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!status) + return -EINVAL; + + ret = zynqmp_pm_invoke_fn(PM_RESET_GET_STATUS, reset, 0, + 0, 0, ret_payload); + *status = 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, @@ -440,6 +478,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .clock_getrate = zynqmp_pm_clock_getrate, .clock_setparent = zynqmp_pm_clock_setparent, .clock_getparent = zynqmp_pm_clock_getparent, + .reset_assert = zynqmp_pm_reset_assert, + .reset_get_status = zynqmp_pm_reset_get_status, }; /** diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 015e130..29d83ca 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -34,6 +34,8 @@ enum pm_api_id { PM_GET_API_VERSION = 1, + PM_RESET_ASSERT = 17, + PM_RESET_GET_STATUS, PM_QUERY_DATA = 35, PM_CLOCK_ENABLE, PM_CLOCK_DISABLE, @@ -73,6 +75,137 @@ enum pm_query_id { PM_QID_CLOCK_GET_ATTRIBUTES, }; +enum zynqmp_pm_reset_action { + PM_RESET_ACTION_RELEASE, + PM_RESET_ACTION_ASSERT, + PM_RESET_ACTION_PULSE, +}; + +enum zynqmp_pm_reset { + ZYNQMP_PM_RESET_START = 999, + ZYNQMP_PM_RESET_PCIE_CFG, + ZYNQMP_PM_RESET_PCIE_BRIDGE, + ZYNQMP_PM_RESET_PCIE_CTRL, + ZYNQMP_PM_RESET_DP, + ZYNQMP_PM_RESET_SWDT_CRF, + ZYNQMP_PM_RESET_AFI_FM5, + ZYNQMP_PM_RESET_AFI_FM4, + ZYNQMP_PM_RESET_AFI_FM3, + ZYNQMP_PM_RESET_AFI_FM2, + ZYNQMP_PM_RESET_AFI_FM1, + ZYNQMP_PM_RESET_AFI_FM0, + ZYNQMP_PM_RESET_GDMA, + ZYNQMP_PM_RESET_GPU_PP1, + ZYNQMP_PM_RESET_GPU_PP0, + ZYNQMP_PM_RESET_GPU, + ZYNQMP_PM_RESET_GT, + ZYNQMP_PM_RESET_SATA, + ZYNQMP_PM_RESET_ACPU3_PWRON, + ZYNQMP_PM_RESET_ACPU2_PWRON, + ZYNQMP_PM_RESET_ACPU1_PWRON, + ZYNQMP_PM_RESET_ACPU0_PWRON, + ZYNQMP_PM_RESET_APU_L2, + ZYNQMP_PM_RESET_ACPU3, + ZYNQMP_PM_RESET_ACPU2, + ZYNQMP_PM_RESET_ACPU1, + ZYNQMP_PM_RESET_ACPU0, + ZYNQMP_PM_RESET_DDR, + ZYNQMP_PM_RESET_APM_FPD, + ZYNQMP_PM_RESET_SOFT, + ZYNQMP_PM_RESET_GEM0, + ZYNQMP_PM_RESET_GEM1, + ZYNQMP_PM_RESET_GEM2, + ZYNQMP_PM_RESET_GEM3, + ZYNQMP_PM_RESET_QSPI, + ZYNQMP_PM_RESET_UART0, + ZYNQMP_PM_RESET_UART1, + ZYNQMP_PM_RESET_SPI0, + ZYNQMP_PM_RESET_SPI1, + ZYNQMP_PM_RESET_SDIO0, + ZYNQMP_PM_RESET_SDIO1, + ZYNQMP_PM_RESET_CAN0, + ZYNQMP_PM_RESET_CAN1, + ZYNQMP_PM_RESET_I2C0, + ZYNQMP_PM_RESET_I2C1, + ZYNQMP_PM_RESET_TTC0, + ZYNQMP_PM_RESET_TTC1, + ZYNQMP_PM_RESET_TTC2, + ZYNQMP_PM_RESET_TTC3, + ZYNQMP_PM_RESET_SWDT_CRL, + ZYNQMP_PM_RESET_NAND, + ZYNQMP_PM_RESET_ADMA, + ZYNQMP_PM_RESET_GPIO, + ZYNQMP_PM_RESET_IOU_CC, + ZYNQMP_PM_RESET_TIMESTAMP, + ZYNQMP_PM_RESET_RPU_R50, + ZYNQMP_PM_RESET_RPU_R51, + ZYNQMP_PM_RESET_RPU_AMBA, + ZYNQMP_PM_RESET_OCM, + ZYNQMP_PM_RESET_RPU_PGE, + ZYNQMP_PM_RESET_USB0_CORERESET, + ZYNQMP_PM_RESET_USB1_CORERESET, + ZYNQMP_PM_RESET_USB0_HIBERRESET, + ZYNQMP_PM_RESET_USB1_HIBERRESET, + ZYNQMP_PM_RESET_USB0_APB, + ZYNQMP_PM_RESET_USB1_APB, + ZYNQMP_PM_RESET_IPI, + ZYNQMP_PM_RESET_APM_LPD, + ZYNQMP_PM_RESET_RTC, + ZYNQMP_PM_RESET_SYSMON, + ZYNQMP_PM_RESET_AFI_FM6, + ZYNQMP_PM_RESET_LPD_SWDT, + ZYNQMP_PM_RESET_FPD, + ZYNQMP_PM_RESET_RPU_DBG1, + ZYNQMP_PM_RESET_RPU_DBG0, + ZYNQMP_PM_RESET_DBG_LPD, + ZYNQMP_PM_RESET_DBG_FPD, + ZYNQMP_PM_RESET_APLL, + ZYNQMP_PM_RESET_DPLL, + ZYNQMP_PM_RESET_VPLL, + ZYNQMP_PM_RESET_IOPLL, + ZYNQMP_PM_RESET_RPLL, + ZYNQMP_PM_RESET_GPO3_PL_0, + ZYNQMP_PM_RESET_GPO3_PL_1, + ZYNQMP_PM_RESET_GPO3_PL_2, + ZYNQMP_PM_RESET_GPO3_PL_3, + ZYNQMP_PM_RESET_GPO3_PL_4, + ZYNQMP_PM_RESET_GPO3_PL_5, + ZYNQMP_PM_RESET_GPO3_PL_6, + ZYNQMP_PM_RESET_GPO3_PL_7, + ZYNQMP_PM_RESET_GPO3_PL_8, + ZYNQMP_PM_RESET_GPO3_PL_9, + ZYNQMP_PM_RESET_GPO3_PL_10, + ZYNQMP_PM_RESET_GPO3_PL_11, + ZYNQMP_PM_RESET_GPO3_PL_12, + ZYNQMP_PM_RESET_GPO3_PL_13, + ZYNQMP_PM_RESET_GPO3_PL_14, + ZYNQMP_PM_RESET_GPO3_PL_15, + ZYNQMP_PM_RESET_GPO3_PL_16, + ZYNQMP_PM_RESET_GPO3_PL_17, + ZYNQMP_PM_RESET_GPO3_PL_18, + ZYNQMP_PM_RESET_GPO3_PL_19, + ZNQMP_PM_RESET_GPO3_PL_20, + ZYNQMP_PM_RESET_GPO3_PL_21, + ZYNQMP_PM_RESET_GPO3_PL_22, + ZYNQMP_PM_RESET_GPO3_PL_23, + ZYNQMP_PM_RESET_GPO3_PL_24, + ZYNQMP_PM_RESET_GPO3_PL_25, + ZYNQMP_PM_RESET_GPO3_PL_26, + ZYNQMP_PM_RESET_GPO3_PL_27, + ZYNQMP_PM_RESET_GPO3_PL_28, + ZYNQMP_PM_RESET_GPO3_PL_29, + ZYNQMP_PM_RESET_GPO3_PL_30, + ZYNQMP_PM_RESET_GPO3_PL_31, + ZYNQMP_PM_RESET_RPU_LS, + ZYNQMP_PM_RESET_PS_ONLY, + ZYNQMP_PM_RESET_PL, + ZYNQMP_PM_RESET_PS_PL0, + ZYNQMP_PM_RESET_PS_PL1, + ZYNQMP_PM_RESET_PS_PL2, + ZYNQMP_PM_RESET_PS_PL3, + ZYNQMP_PM_RESET_END +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID @@ -99,6 +232,9 @@ struct zynqmp_eemi_ops { int (*clock_getrate)(u32 clock_id, u64 *rate); int (*clock_setparent)(u32 clock_id, u32 parent_id); int (*clock_getparent)(u32 clock_id, u32 *parent_id); + int (*reset_assert)(const enum zynqmp_pm_reset reset, + const enum zynqmp_pm_reset_action assert_flag); + int (*reset_get_status)(const enum zynqmp_pm_reset reset, u32 *status); }; #if IS_REACHABLE(CONFIG_ARCH_ZYNQMP) -- 2.7.4