Hi Jagan, Love this patch! This was long overdue.
On 01/27/2017 07:12 AM, Jagan Teki wrote: > Use meaningful meacros IMX6_BMODE_*, instead of numerical > number in boot mode detection code. s/meacros/macros/ > > Cc: Stefano Babic <sba...@denx.de> > Cc: Tim Harvey <thar...@gateworks.com> > Signed-off-by: Jagan Teki <ja...@openedev.com> > --- > arch/arm/imx-common/spl.c | 39 > ++++++++++++++++++----------- > arch/arm/include/asm/imx-common/sys_proto.h | 34 +++++++++++++++++++++++++ > 2 files changed, 58 insertions(+), 15 deletions(-) > > diff --git a/arch/arm/imx-common/spl.c b/arch/arm/imx-common/spl.c > index fc3704b..38789b2 100644 > --- a/arch/arm/imx-common/spl.c > +++ b/arch/arm/imx-common/spl.c > @@ -30,39 +30,48 @@ u32 spl_boot_device(void) > if ((((bmode >> 24) & 0x03) == 0x01) || /* Serial Downloader */ > (imx6_is_bmode_from_gpr9() && (reg == 1))) > return BOOT_DEVICE_UART; > + > /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ > - switch ((reg & 0x000000FF) >> 4) { > + switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { > /* EIM: See 8.5.1, Table 8-9 */ > - case 0x0: > + case IMX6_BMODE_EMI: > /* BOOT_CFG1[3]: NOR/OneNAND Selection */ > - if ((reg & 0x00000008) >> 3) > + switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { > + case IMX6_BMODE_ONENAND: > return BOOT_DEVICE_ONENAND; > - else > + case IMX6_BMODE_NOR: > return BOOT_DEVICE_NOR; > - break; > + } > /* SATA: See 8.5.4, Table 8-20 */ > - case 0x2: > + case IMX6_BMODE_SATA: > return BOOT_DEVICE_SATA; > /* Serial ROM: See 8.5.5.1, Table 8-22 */ > - case 0x3: > + case IMX6_BMODE_SERIAL: > /* BOOT_CFG4[2:0] */ > - switch ((reg & 0x07000000) >> 24) { > - case 0x0 ... 0x4: > + switch ((reg & IMX6_BMODE_SERIAL_MASK) >> > + IMX6_BMODE_SERIAL_SHIFT) { > + case IMX6_BMODE_ECSPI1: > + case IMX6_BMODE_ECSPI2: > + case IMX6_BMODE_ECSPI3: > + case IMX6_BMODE_ECSPI4: > + case IMX6_BMODE_ECSPI5: > return BOOT_DEVICE_SPI; > - case 0x5 ... 0x7: > + case IMX6_BMODE_I2C1: > + case IMX6_BMODE_I2C2: > + case IMX6_BMODE_I2C3: > return BOOT_DEVICE_I2C; > } > break; > /* SD/eSD: 8.5.3, Table 8-15 */ > - case 0x4: > - case 0x5: > + case IMX6_BMODE_SD: > + case IMX6_BMODE_ESD: > return BOOT_DEVICE_MMC1; > /* MMC/eMMC: 8.5.3 */ > - case 0x6: > - case 0x7: > + case IMX6_BMODE_MMC: > + case IMX6_BMODE_EMMC: > return BOOT_DEVICE_MMC1; > /* NAND Flash: 8.5.2, Table 8-10 */ > - case 0x8: > + case IMX6_BMODE_NAND: > return BOOT_DEVICE_NAND; > } > return BOOT_DEVICE_NONE; > diff --git a/arch/arm/include/asm/imx-common/sys_proto.h > b/arch/arm/include/asm/imx-common/sys_proto.h > index 99e3869..d0cf3f1 100644 > --- a/arch/arm/include/asm/imx-common/sys_proto.h > +++ b/arch/arm/include/asm/imx-common/sys_proto.h > @@ -42,6 +42,40 @@ > #ifdef CONFIG_MX6 > #define IMX6_SRC_GPR10_BMODE BIT(28) > > +#define IMX6_BMODE_MASK GENMASK(7, 0) This is a number (4), not a mask: > +#define IMX6_BMODE_SHIFT BIT(2) > +#define IMX6_BMODE_EMI_MASK BIT(3) Ditto (number, not mask): > +#define IMX6_BMODE_EMI_SHIFT GENMASK(1, 0) Since there's also a "serial download mode", I'd prefer that these say "SERIAL_NOR" to avoid confusion. > +#define IMX6_BMODE_SERIAL_MASK GENMASK(26, 24) > +#define IMX6_BMODE_SERIAL_SHIFT GENMASK(4, 3) > + I'd prefer macros for these because they'd show the values directly, making a comparison with the RM easier. > +enum imx6_bmode_serial { > + IMX6_BMODE_ECSPI1, > + IMX6_BMODE_ECSPI2, > + IMX6_BMODE_ECSPI3, > + IMX6_BMODE_ECSPI4, > + IMX6_BMODE_ECSPI5, > + IMX6_BMODE_I2C1, > + IMX6_BMODE_I2C2, > + IMX6_BMODE_I2C3, > +}; > + > +enum imx6_bmode_emi { > + IMX6_BMODE_ONENAND, > + IMX6_BMODE_NOR, > +}; > + > +enum imx6_bmode { > + IMX6_BMODE_EMI, Especially when doing things like this: > + IMX6_BMODE_SATA = 0x2, > + IMX6_BMODE_SERIAL, > + IMX6_BMODE_SD, > + IMX6_BMODE_ESD, > + IMX6_BMODE_MMC, > + IMX6_BMODE_EMMC, > + IMX6_BMODE_NAND, > +}; > + > static inline u8 imx6_is_bmode_from_gpr9(void) > { > struct src *psrc = (struct src *)SRC_BASE_ADDR; > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot