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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-06-20 11:40:36 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-06-20 11:40:36 -0600 |
| commit | 302fc87b5fdab3e0cf001be9a610d6655607e9a7 (patch) | |
| tree | 562aa8a981694368773669189adc172d9cee2322 /nuttx/configs/sama5d3x-ek/include | |
| parent | 917edabee07b8edd78c4ca0d4d932ad7bc893d13 (diff) | |
| download | px4-nuttx-302fc87b5fdab3e0cf001be9a610d6655607e9a7.tar.gz px4-nuttx-302fc87b5fdab3e0cf001be9a610d6655607e9a7.tar.bz2 px4-nuttx-302fc87b5fdab3e0cf001be9a610d6655607e9a7.zip | |
SAMA5D4: USART peripheral clock appears to be MCK/2
Diffstat (limited to 'nuttx/configs/sama5d3x-ek/include')
4 files changed, 23 insertions, 0 deletions
diff --git a/nuttx/configs/sama5d3x-ek/include/board_384mhz.h b/nuttx/configs/sama5d3x-ek/include/board_384mhz.h index 3dee82044..528ff509a 100644 --- a/nuttx/configs/sama5d3x-ek/include/board_384mhz.h +++ b/nuttx/configs/sama5d3x-ek/include/board_384mhz.h @@ -167,6 +167,12 @@ #define BOARD_MCK_FREQUENCY (128000000) /* MCK: PLLACK / 2 / 1 / 3 */ #define BOARD_ADCCLK_FREQUENCY (8000000) /* ADCCLK: MCK / ((7+1)*2) */ +/* On some SAMA5's, the clocking to peripherals may be divided down from MCK, + * but not for the SAMA5D3. + */ + +#define BOARD_USART_FREQUENCY BOARD_MCK_FREQUENCY + /* HSMCI clocking * * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK) diff --git a/nuttx/configs/sama5d3x-ek/include/board_396mhz.h b/nuttx/configs/sama5d3x-ek/include/board_396mhz.h index 707ffd878..ef850fda8 100644 --- a/nuttx/configs/sama5d3x-ek/include/board_396mhz.h +++ b/nuttx/configs/sama5d3x-ek/include/board_396mhz.h @@ -125,6 +125,12 @@ #define BOARD_MCK_FREQUENCY (132000000) /* MCK: PLLACK / 2 / 1 / 3 */ #define BOARD_ADCCLK_FREQUENCY (8250000) /* ADCCLK: MCK / ((7+1)*2) */ +/* On some SAMA5's, the clocking to peripherals may be divided down from MCK, + * but not for the SAMA5D3. + */ + +#define BOARD_USART_FREQUENCY BOARD_MCK_FREQUENCY + #if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \ defined(CONFIG_SAMA5_UDPHS) diff --git a/nuttx/configs/sama5d3x-ek/include/board_528mhz.h b/nuttx/configs/sama5d3x-ek/include/board_528mhz.h index 4f79ecd4a..0b2744030 100644 --- a/nuttx/configs/sama5d3x-ek/include/board_528mhz.h +++ b/nuttx/configs/sama5d3x-ek/include/board_528mhz.h @@ -124,6 +124,11 @@ #define BOARD_MCK_FREQUENCY (132000000) /* MCK: PLLACK / 1 / 1 / 4 */ #define BOARD_ADCCLK_FREQUENCY (8250000) /* ADCCLK: MCK / ((7+1)*2) */ +/* On some SAMA5's, the clocking to peripherals may be divided down from MCK, + * but not for the SAMA5D3. + */ + +#define BOARD_USART_FREQUENCY BOARD_MCK_FREQUENCY #if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \ defined(CONFIG_SAMA5_UDPHS) diff --git a/nuttx/configs/sama5d3x-ek/include/board_sdram.h b/nuttx/configs/sama5d3x-ek/include/board_sdram.h index f7e8b8015..9e4b60469 100644 --- a/nuttx/configs/sama5d3x-ek/include/board_sdram.h +++ b/nuttx/configs/sama5d3x-ek/include/board_sdram.h @@ -63,6 +63,12 @@ #define BOARD_PCK_FREQUENCY (sam_pck_frequency(BOARD_MAINOSC_FREQUENCY)) #define BOARD_MCK_FREQUENCY (sam_mck_frequency(BOARD_MAINOSC_FREQUENCY)) +/* On some SAMA5's, the clocking to peripherals may be divided down from MCK, + * but not for the SAMA5D3. + */ + +#define BOARD_USART_FREQUENCY BOARD_MCK_FREQUENCY + #if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \ defined(CONFIG_SAMA5_UDPHS) |