diff --git a/os/hal/ports/RP/LLD/GPIOv1/hal_pal_lld.h b/os/hal/ports/RP/LLD/GPIOv1/hal_pal_lld.h
index 119c951c1..34b88855d 100644
--- a/os/hal/ports/RP/LLD/GPIOv1/hal_pal_lld.h
+++ b/os/hal/ports/RP/LLD/GPIOv1/hal_pal_lld.h
@@ -109,6 +109,7 @@
 #define PAL_MODE_ALTERNATE_SIO              (PAL_MODE_ALTERNATE(5U))
 #define PAL_MODE_ALTERNATE_PIO0             (PAL_MODE_ALTERNATE(6U))
 #define PAL_MODE_ALTERNATE_PIO1             (PAL_MODE_ALTERNATE(7U))
+#define PAL_MODE_ALTERNATE_CLK              (PAL_MODE_ALTERNATE(8U))
 #define PAL_MODE_ALTERNATE_USB              (PAL_MODE_ALTERNATE(9U))
 /** @} */
 
@@ -388,7 +389,7 @@ __STATIC_INLINE void __pal_lld_pad_set_mode(ioportid_t port,
 
   ctrlbits = (mode & 0x007FFFFFU) >> 0U;
   oebits   = (mode & 0x00800000U) >> 23U;
-  padbits  = (mode & 0xF0000000U) >> 24;
+  padbits  = (mode & 0xF0000000U) >> 24U;
 
   /* Setting up GPIO direction first.*/
   if (oebits != 0U) {
diff --git a/os/hal/ports/RP/LLD/SPIv1/hal_spi_lld.c b/os/hal/ports/RP/LLD/SPIv1/hal_spi_lld.c
index 18e158e1c..29ed91f30 100644
--- a/os/hal/ports/RP/LLD/SPIv1/hal_spi_lld.c
+++ b/os/hal/ports/RP/LLD/SPIv1/hal_spi_lld.c
@@ -203,12 +203,12 @@ void spi_lld_start(SPIDriver *spip) {
     }
 
     /* DMA setup.*/
-    dmaChannelSetDestinationX(spip->dmarx, (uint32_t)&spip->spi->SSPDR);
-    dmaChannelSetSourceX(spip->dmatx, (uint32_t)&spip->spi->SSPDR);
+    dmaChannelSetSourceX(spip->dmarx, (uint32_t)&spip->spi->SSPDR);
+    dmaChannelSetDestinationX(spip->dmatx, (uint32_t)&spip->spi->SSPDR);
   }
 
   /* Configuration-dependent DMA settings.*/
-  dss = (spip->config->SSPCR0 & SPI_SSPCR0_DSS_Msk) >> SPI_SSPCR0_DSS_Pos;
+  dss = (spip->config->SSPCR0 & SPI_SSPCR0_DSS_Msk)/* >> SPI_SSPCR0_DSS_Pos*/;
   if (dss <= SPI_SSPCR0_DSS_8BIT) {
     /* Frame width is 8 bits or smaller.*/
     spip->rxdmamode = (spip->rxdmamode & ~DMA_CTRL_TRIG_DATA_SIZE_Msk) |