| Message ID | 20220622161617.3719096-2-clg@kaod.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spi: aspeed: Fix division by zero | expand |
On Wed, 22 Jun 2022 at 16:16, Cédric Le Goater <clg@kaod.org> wrote: > > The default value of the control register is set using the direct > mapping information passed to the ->dirmap_create() handler. Dump the > mapping range and the SPI memory operation characteristics to analyze > how the register value has been computed. > > spi-aspeed-smc 1e630000.spi: CE0 read dirmap [ 0x00000000 - 0x04000000 ] OP 0x6c mode:1.1.1.4 naddr:0x4 ndummies:0x1 > ... > spi-aspeed-smc 1e630000.spi: CE0 write dirmap [ 0x00000000 - 0x04000000 ] OP 0x12 mode:1.1.0.1 naddr:0x4 ndummies:0x0 > > Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> > Signed-off-by: Cédric Le Goater <clg@kaod.org> Very handy! Thanks Cédric. Reviewed-by: Joel Stanley <joel@jms.id.au> > --- > drivers/spi/spi-aspeed-smc.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/spi/spi-aspeed-smc.c b/drivers/spi/spi-aspeed-smc.c > index 496f3e1e9079..ac64be289e59 100644 > --- a/drivers/spi/spi-aspeed-smc.c > +++ b/drivers/spi/spi-aspeed-smc.c > @@ -558,6 +558,14 @@ static int aspeed_spi_dirmap_create(struct spi_mem_dirmap_desc *desc) > u32 ctl_val; > int ret = 0; > > + dev_dbg(aspi->dev, > + "CE%d %s dirmap [ 0x%.8llx - 0x%.8llx ] OP %#x mode:%d.%d.%d.%d naddr:%#x ndummies:%#x\n", > + chip->cs, op->data.dir == SPI_MEM_DATA_IN ? "read" : "write", > + desc->info.offset, desc->info.offset + desc->info.length, > + op->cmd.opcode, op->cmd.buswidth, op->addr.buswidth, > + op->dummy.buswidth, op->data.buswidth, > + op->addr.nbytes, op->dummy.nbytes); > + > chip->clk_freq = desc->mem->spi->max_speed_hz; > > /* Only for reads */ > -- > 2.35.3 >
diff --git a/drivers/spi/spi-aspeed-smc.c b/drivers/spi/spi-aspeed-smc.c index 496f3e1e9079..ac64be289e59 100644 --- a/drivers/spi/spi-aspeed-smc.c +++ b/drivers/spi/spi-aspeed-smc.c @@ -558,6 +558,14 @@ static int aspeed_spi_dirmap_create(struct spi_mem_dirmap_desc *desc) u32 ctl_val; int ret = 0; + dev_dbg(aspi->dev, + "CE%d %s dirmap [ 0x%.8llx - 0x%.8llx ] OP %#x mode:%d.%d.%d.%d naddr:%#x ndummies:%#x\n", + chip->cs, op->data.dir == SPI_MEM_DATA_IN ? "read" : "write", + desc->info.offset, desc->info.offset + desc->info.length, + op->cmd.opcode, op->cmd.buswidth, op->addr.buswidth, + op->dummy.buswidth, op->data.buswidth, + op->addr.nbytes, op->dummy.nbytes); + chip->clk_freq = desc->mem->spi->max_speed_hz; /* Only for reads */