diff options
Diffstat (limited to 'drivers/spi/rk_spi.c')
| -rw-r--r-- | drivers/spi/rk_spi.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c index 7b39d1c9e7..dceced9541 100644 --- a/drivers/spi/rk_spi.c +++ b/drivers/spi/rk_spi.c @@ -353,23 +353,13 @@ static inline int rockchip_spi_16bit_reader(struct udevice *dev, u32 statistics_rxlevels[33] = { }; #endif u32 frames = *len / 2; - u16 *in16 = (u16 *)(*din); + u8 *in = (u8 *)(*din); u32 max_chunk_size = SPI_FIFO_DEPTH; if (!frames) return 0; /* - * If the destination buffer is unaligned, we'd run into a problem - * on ARMv8. Given that this doesn't seem to be a real issue, we - * just chicken out and fall back to the unoptimised implementation. - */ - if ((uintptr_t)*din & 1) { - debug("%s: unaligned buffer, din = %p\n", __func__, *din); - return 0; - } - - /* * If we know that the hardware will manage RXFIFO overruns * (i.e. stop the SPI clock until there's space in the FIFO), * we the allow largest possible chunk size that can be @@ -406,8 +396,11 @@ static inline int rockchip_spi_16bit_reader(struct udevice *dev, statistics_rxlevels[rx_level]++; #endif chunk_size -= rx_level; - while (rx_level--) - *in16++ = readw(regs->rxdr); + while (rx_level--) { + u16 val = readw(regs->rxdr); + *in++ = val & 0xff; + *in++ = val >> 8; + } } while (chunk_size); rkspi_enable_chip(regs, false); |