On Sun, Oct 25, 2015 at 12:13:14AM +0200, Marek Vasut wrote:
> On Saturday, October 24, 2015 at 11:51:39 PM, Tom Rini wrote:
> > On Sat, Oct 24, 2015 at 02:41:41PM +0200, Marek Vasut wrote:
> > > On Saturday, October 24, 2015 at 05:39:04 AM, Jagan Teki wrote:
> > > > Replace numeric mask hexcodes with GENMASK macro
> > > > in cadence_qspi_apb
> > > > 
> > > > Cc: Fabio Estevam <feste...@gmail.com>
> > > > Cc: Stefan Roese <s...@denx.de>
> > > > Cc: Marek Vasut <ma...@denx.de>
> > > > Cc: Tom Rini <tr...@konsulko.com>
> > > > Acked-by: Vikas Manocha <vikas.mano...@st.com>
> > > > Signed-off-by: Jagan Teki <jt...@openedev.com>
> > > > ---
> > > > 
> > > >  drivers/spi/cadence_qspi_apb.c | 46
> > > > 
> > > > +++++++++++++++++++++--------------------- 1 file changed, 23
> > > > insertions(+), 23 deletions(-)
> > > > 
> > > > diff --git a/drivers/spi/cadence_qspi_apb.c
> > > > b/drivers/spi/cadence_qspi_apb.c index 7786dd6..662d3bb 100644
> > > > --- a/drivers/spi/cadence_qspi_apb.c
> > > > +++ b/drivers/spi/cadence_qspi_apb.c
> > > > @@ -44,7 +44,7 @@
> > > > 
> > > >  #define CQSPI_INST_TYPE_QUAD                   (2)
> > > >  
> > > >  #define CQSPI_STIG_DATA_LEN_MAX                        (8)
> > > > 
> > > > -#define CQSPI_INDIRECTTRIGGER_ADDR_MASK                (0xFFFFF)
> > > > +#define CQSPI_INDIRECTTRIGGER_ADDR_MASK                GENMASK(19, 0)
> > > > 
> > > >  #define CQSPI_DUMMY_CLKS_PER_BYTE              (8)
> > > >  #define CQSPI_DUMMY_BYTES_MAX                  (4)
> > > > 
> > > > @@ -65,8 +65,8 @@
> > > > 
> > > >  #define        CQSPI_REG_CONFIG_CHIPSELECT_LSB         10
> > > >  #define        CQSPI_REG_CONFIG_BAUD_LSB               19
> > > >  #define        CQSPI_REG_CONFIG_IDLE_LSB               31
> > > > 
> > > > -#define        CQSPI_REG_CONFIG_CHIPSELECT_MASK        0xF
> > > > -#define        CQSPI_REG_CONFIG_BAUD_MASK              0xF
> > > > +#define        CQSPI_REG_CONFIG_CHIPSELECT_MASK        GENMASK(3, 0)
> > > > +#define        CQSPI_REG_CONFIG_BAUD_MASK              GENMASK(3, 0)
> > > > 
> > > >  #define        CQSPI_REG_RD_INSTR                      0x04
> > > >  #define        CQSPI_REG_RD_INSTR_OPCODE_LSB           0
> > > > 
> > > > @@ -75,10 +75,10 @@
> > > > 
> > > >  #define        CQSPI_REG_RD_INSTR_TYPE_DATA_LSB        16
> > > >  #define        CQSPI_REG_RD_INSTR_MODE_EN_LSB          20
> > > >  #define        CQSPI_REG_RD_INSTR_DUMMY_LSB            24
> > > > 
> > > > -#define        CQSPI_REG_RD_INSTR_TYPE_INSTR_MASK      0x3
> > > > -#define        CQSPI_REG_RD_INSTR_TYPE_ADDR_MASK       0x3
> > > > -#define        CQSPI_REG_RD_INSTR_TYPE_DATA_MASK       0x3
> > > > -#define        CQSPI_REG_RD_INSTR_DUMMY_MASK           0x1F
> > > > +#define        CQSPI_REG_RD_INSTR_TYPE_INSTR_MASK      GENMASK(1, 0)
> > > > +#define        CQSPI_REG_RD_INSTR_TYPE_ADDR_MASK       GENMASK(1, 0)
> > > > +#define        CQSPI_REG_RD_INSTR_TYPE_DATA_MASK       GENMASK(1, 0)
> > > > +#define        CQSPI_REG_RD_INSTR_DUMMY_MASK           GENMASK(4, 0)
> > > > 
> > > >  #define        CQSPI_REG_WR_INSTR                      0x08
> > > >  #define        CQSPI_REG_WR_INSTR_OPCODE_LSB           0
> > > > 
> > > > @@ -88,23 +88,23 @@
> > > > 
> > > >  #define        CQSPI_REG_DELAY_TCHSH_LSB               8
> > > >  #define        CQSPI_REG_DELAY_TSD2D_LSB               16
> > > >  #define        CQSPI_REG_DELAY_TSHSL_LSB               24
> > > > 
> > > > -#define        CQSPI_REG_DELAY_TSLCH_MASK              0xFF
> > > > -#define        CQSPI_REG_DELAY_TCHSH_MASK              0xFF
> > > > -#define        CQSPI_REG_DELAY_TSD2D_MASK              0xFF
> > > > -#define        CQSPI_REG_DELAY_TSHSL_MASK              0xFF
> > > > +#define        CQSPI_REG_DELAY_TSLCH_MASK              GENMASK(7, 0)
> > > > +#define        CQSPI_REG_DELAY_TCHSH_MASK              GENMASK(7, 0)
> > > > +#define        CQSPI_REG_DELAY_TSD2D_MASK              GENMASK(7, 0)
> > > > +#define        CQSPI_REG_DELAY_TSHSL_MASK              GENMASK(7, 0)
> > > > 
> > > >  #define        CQSPI_READLCAPTURE                      0x10
> > > >  #define        CQSPI_READLCAPTURE_BYPASS_LSB           0
> > > >  #define        CQSPI_READLCAPTURE_DELAY_LSB            1
> > > > 
> > > > -#define        CQSPI_READLCAPTURE_DELAY_MASK           0xF
> > > > +#define        CQSPI_READLCAPTURE_DELAY_MASK           GENMASK(3, 0)
> > > > 
> > > >  #define        CQSPI_REG_SIZE                          0x14
> > > >  #define        CQSPI_REG_SIZE_ADDRESS_LSB              0
> > > >  #define        CQSPI_REG_SIZE_PAGE_LSB                 4
> > > >  #define        CQSPI_REG_SIZE_BLOCK_LSB                16
> > > > 
> > > > -#define        CQSPI_REG_SIZE_ADDRESS_MASK             0xF
> > > > -#define        CQSPI_REG_SIZE_PAGE_MASK                0xFFF
> > > > -#define        CQSPI_REG_SIZE_BLOCK_MASK               0x3F
> > > > +#define        CQSPI_REG_SIZE_ADDRESS_MASK             GENMASK(3, 0)
> > > > +#define        CQSPI_REG_SIZE_PAGE_MASK                GENMASK(11, 0)
> > > > +#define        CQSPI_REG_SIZE_BLOCK_MASK               GENMASK(5, 0)
> > > > 
> > > >  #define        CQSPI_REG_SRAMPARTITION                 0x18
> > > >  #define        CQSPI_REG_INDIRECTTRIGGER               0x1C
> > > > 
> > > > @@ -115,8 +115,8 @@
> > > > 
> > > >  #define        CQSPI_REG_SDRAMLEVEL                    0x2C
> > > >  #define        CQSPI_REG_SDRAMLEVEL_RD_LSB             0
> > > >  #define        CQSPI_REG_SDRAMLEVEL_WR_LSB             16
> > > > 
> > > > -#define        CQSPI_REG_SDRAMLEVEL_RD_MASK            0xFFFF
> > > > -#define        CQSPI_REG_SDRAMLEVEL_WR_MASK            0xFFFF
> > > > +#define        CQSPI_REG_SDRAMLEVEL_RD_MASK            GENMASK(15, 0)
> > > > +#define        CQSPI_REG_SDRAMLEVEL_WR_MASK            GENMASK(15, 0)
> > > > 
> > > >  #define        CQSPI_REG_IRQSTATUS                     0x40
> > > >  #define        CQSPI_REG_IRQMASK                       0x44
> > > > 
> > > > @@ -142,11 +142,11 @@
> > > > 
> > > >  #define        CQSPI_REG_CMDCTRL_RD_BYTES_LSB          20
> > > >  #define        CQSPI_REG_CMDCTRL_RD_EN_LSB             23
> > > >  #define        CQSPI_REG_CMDCTRL_OPCODE_LSB            24
> > > > 
> > > > -#define        CQSPI_REG_CMDCTRL_DUMMY_MASK            0x1F
> > > > -#define        CQSPI_REG_CMDCTRL_WR_BYTES_MASK         0x7
> > > > -#define        CQSPI_REG_CMDCTRL_ADD_BYTES_MASK        0x3
> > > > -#define        CQSPI_REG_CMDCTRL_RD_BYTES_MASK         0x7
> > > > -#define        CQSPI_REG_CMDCTRL_OPCODE_MASK           0xFF
> > > > +#define        CQSPI_REG_CMDCTRL_DUMMY_MASK            GENMASK(4, 0)
> > > > +#define        CQSPI_REG_CMDCTRL_WR_BYTES_MASK         GENMASK(2, 0)
> > > > +#define        CQSPI_REG_CMDCTRL_ADD_BYTES_MASK        GENMASK(1, 0)
> > > > +#define        CQSPI_REG_CMDCTRL_RD_BYTES_MASK         GENMASK(2, 0)
> > > > +#define        CQSPI_REG_CMDCTRL_OPCODE_MASK           GENMASK(7, 0)
> > > > 
> > > >  #define        CQSPI_REG_INDIRECTWR                    0x70
> > > >  #define        CQSPI_REG_INDIRECTWR_START_MASK         BIT(0)
> > > > 
> > > > @@ -463,7 +463,7 @@ void cadence_qspi_apb_chipselect(void *reg_base,
> > > > 
> > > >                  * CS2 to 4b'1011
> > > >                  * CS3 to 4b'0111
> > > >                  */
> > > > 
> > > > -               chip_select = 0xF & ~(1 << chip_select);
> > > > +               chip_select = GENMASK(3, 0) & ~(1 << chip_select);
> > > 
> > > Again, this only makes things more cryptic for no good reason. NAK
> > 
> > Personal preference.
> 
> Yeah, sorry. They still didn't install CPP into my brain.

True.  But it's called GENMASK not BVTYKS.  Now, I'm not saying I never
checked that a macro was doing what it said it was doing, but that's
what reviewing the earlier parts of the patch are for.  Of course I'm
the person that pulls out bc and verifies hex-to-binary when fiddling
with bitfields so I'm biased here.

> > So as I asked before, who is mainly mucking around
> > in these drivers?
> 
> I guess Chin would be the one who's mostly plumbing in Cadence recently, 
> followed by Stefan Roese.

OK.  So, if Chin or Stefan doesn't like it, that's a good reason to NAK
it.  And the same goes for anyone else and the drivers they own and muck
around in.

-- 
Tom

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