diff options
| -rw-r--r-- | board/hyperdebug/spi.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/board/hyperdebug/spi.c b/board/hyperdebug/spi.c index ed63b33017..51270ca91d 100644 --- a/board/hyperdebug/spi.c +++ b/board/hyperdebug/spi.c @@ -13,19 +13,19 @@ #include "usb_spi.h" #include "util.h" -#define OCTOSPI_CLOCK (16000000UL) -#define SPI_CLOCK (16000000UL) +#define OCTOSPI_CLOCK (CPU_CLOCK) +#define SPI_CLOCK (CPU_CLOCK) -/* SPI devices, default to 250 kb/s for all. */ +/* SPI devices, default to 406 kb/s for all. */ struct spi_device_t spi_devices[] = { { .name = "SPI2", .port = 1, - .div = 5, + .div = 7, .gpio_cs = GPIO_CN9_25, .usb_flags = USB_SPI_ENABLED }, { .name = "QSPI", .port = -1 /* OCTOSPI */, - .div = 63, + .div = 255, .gpio_cs = GPIO_CN10_6, .usb_flags = USB_SPI_ENABLED | USB_SPI_CUSTOM_SPI_DEVICE }, }; @@ -121,9 +121,11 @@ static int command_spi_set_speed(int argc, const char **argv) * slightly slower speed than requested, if it cannot be matched * exactly. */ - spi_devices[index].div = + int divisor = (OCTOSPI_CLOCK + desired_speed - 1) / desired_speed - 1; - STM32_OCTOSPI_DCR2 = spi_devices[index].div; + if (divisor >= 256) + divisor = 255; + STM32_OCTOSPI_DCR2 = spi_devices[index].div = divisor; } else { int divisor = 7; /* |