diff options
| author | Carlos Song <carlos.song@nxp.com> | 2025-11-18 14:50:12 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-11-18 18:54:27 +0000 |
| commit | 4dbb5f6e1b4eed64037d4462977c196acab2af16 (patch) | |
| tree | 0d8fd5feaa5d309c69c82ece58ffd2cfbca0fec8 | |
| parent | f2fb3f7bdf8b996ef7bd1ecc13c93c4dfc9b0d2a (diff) | |
spi: imx: add 16/32 bits per word support for target PIO mode
Enable 16/32 bits per word support for spi-imx target PIO mode.
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251118065012.1418279-1-carlos.song@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-imx.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index edd33fc28c7d..e889680a3002 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -425,8 +425,15 @@ static void spi_imx_buf_tx_swap(struct spi_imx_data *spi_imx) static void mx53_ecspi_rx_target(struct spi_imx_data *spi_imx) { - u32 val = ioread32be(spi_imx->base + MXC_CSPIRXDATA); + u32 val = readl(spi_imx->base + MXC_CSPIRXDATA); +#ifdef __LITTLE_ENDIAN + unsigned int bytes_per_word = spi_imx_bytes_per_word(spi_imx->bits_per_word); + if (bytes_per_word == 1) + swab32s(&val); + else if (bytes_per_word == 2) + swahw32s(&val); +#endif if (spi_imx->rx_buf) { int n_bytes = spi_imx->target_burst % sizeof(val); @@ -447,6 +454,9 @@ static void mx53_ecspi_tx_target(struct spi_imx_data *spi_imx) { u32 val = 0; int n_bytes = spi_imx->count % sizeof(val); +#ifdef __LITTLE_ENDIAN + unsigned int bytes_per_word; +#endif if (!n_bytes) n_bytes = sizeof(val); @@ -459,7 +469,14 @@ static void mx53_ecspi_tx_target(struct spi_imx_data *spi_imx) spi_imx->count -= n_bytes; - iowrite32be(val, spi_imx->base + MXC_CSPITXDATA); +#ifdef __LITTLE_ENDIAN + bytes_per_word = spi_imx_bytes_per_word(spi_imx->bits_per_word); + if (bytes_per_word == 1) + swab32s(&val); + else if (bytes_per_word == 2) + swahw32s(&val); +#endif + writel(val, spi_imx->base + MXC_CSPITXDATA); } /* MX51 eCSPI */ |