diff options
Diffstat (limited to '')
| -rw-r--r-- | bsps/arm/imxrt/start/bspstart.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/bsps/arm/imxrt/start/bspstart.c b/bsps/arm/imxrt/start/bspstart.c index 445af04563..1d583d7ca4 100644 --- a/bsps/arm/imxrt/start/bspstart.c +++ b/bsps/arm/imxrt/start/bspstart.c @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: BSD-2-Clause */ /* - * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + * Copyright (C) 2020 embedded brains GmbH & Co. KG * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -47,6 +47,7 @@ uint32_t imxrt_systick_frequency(void) static void imxrt_disable_wait_mode(void) { +#if IMXRT_IS_MIMXRT10xx /* * Prevent processor from entering WAIT or SLEEP mode when a WFI is executed. * This would switch off the normal interrupt controller and activate an @@ -58,6 +59,16 @@ static void imxrt_disable_wait_mode(void) * every WFI. */ CLOCK_SetMode(kCLOCK_ModeRun); +#elif IMXRT_IS_MIMXRT11xx + /* + * i.MX RT11xx doesn't support disabling power saving for WFI. On the other + * hand it doesn't have a separate interrupt controller like the i.MX RT1050. + * So a power save during WFI is only annoying during debugging but doesn't + * hurt otherwise. + */ +#else + #error Disabling wait mode not implemented for this chip. +#endif } void bsp_start(void) @@ -125,6 +136,22 @@ uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells) return intr[0]; } +/* + * Clock frequencies for peripherals like SD card. These are used by libbsd + * drivers. + */ +#if IMXRT_IS_MIMXRT11xx +uint32_t +imx_ccm_sdhci_hz(void) +{ + /* + * We don't know which SDHCI is used. So just return the clock frequency + * of the first SDHCI and hope the best. + */ + return CLOCK_GetRootClockFreq(kCLOCK_Root_Usdhc1); +} +#endif + /* Make sure to pull in the flash headers */ __attribute__((used)) static const void *hdr_dcd = &imxrt_dcd_data; __attribute__((used)) static const void *hdr_ivt = &imxrt_image_vector_table; |