| Message ID | 20230313111127.1229187-4-danishanwar@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce PRU platform consumer API | expand |
Danish, On 13/03/2023 13:11, MD Danish Anwar wrote: > From: Suman Anna <s-anna@ti.com> > > Add two new generic API pruss_cfg_read() and pruss_cfg_update() to > the PRUSS platform driver to read and program respectively a register > within the PRUSS CFG sub-module represented by a syscon driver. > > These APIs are internal to PRUSS driver. Various useful registers > and macros for certain register bit-fields and their values have also > been added. > > Signed-off-by: Suman Anna <s-anna@ti.com> > Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> > Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> > Signed-off-by: Puranjay Mohan <p-mohan@ti.com> > Signed-off-by: MD Danish Anwar <danishanwar@ti.com> > --- > drivers/soc/ti/pruss.c | 39 ++++++++++++++ > include/linux/remoteproc/pruss.h | 87 ++++++++++++++++++++++++++++++++ > 2 files changed, 126 insertions(+) > > diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c > index c8053c0d735f..26d8129b515c 100644 > --- a/drivers/soc/ti/pruss.c > +++ b/drivers/soc/ti/pruss.c > @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, > } > EXPORT_SYMBOL_GPL(pruss_release_mem_region); > > +/** > + * pruss_cfg_read() - read a PRUSS CFG sub-module register > + * @pruss: the pruss instance handle > + * @reg: register offset within the CFG sub-module > + * @val: pointer to return the value in > + * > + * Reads a given register within the PRUSS CFG sub-module and > + * returns it through the passed-in @val pointer > + * > + * Return: 0 on success, or an error code otherwise > + */ > +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) > +{ > + if (IS_ERR_OR_NULL(pruss)) > + return -EINVAL; > + > + return regmap_read(pruss->cfg_regmap, reg, val); > +} > + > +/** > + * pruss_cfg_update() - configure a PRUSS CFG sub-module register > + * @pruss: the pruss instance handle > + * @reg: register offset within the CFG sub-module > + * @mask: bit mask to use for programming the @val > + * @val: value to write > + * > + * Programs a given register within the PRUSS CFG sub-module > + * > + * Return: 0 on success, or an error code otherwise > + */ > +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, > + unsigned int mask, unsigned int val) > +{ > + if (IS_ERR_OR_NULL(pruss)) > + return -EINVAL; > + > + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); > +} > + > static void pruss_of_free_clk_provider(void *data) > { > struct device_node *clk_mux_np = data; > diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h > index 33f930e0a0ce..12ef10b9fe9a 100644 > --- a/include/linux/remoteproc/pruss.h > +++ b/include/linux/remoteproc/pruss.h > @@ -10,12 +10,99 @@ > #ifndef __LINUX_PRUSS_H > #define __LINUX_PRUSS_H > > +#include <linux/bits.h> > #include <linux/device.h> > #include <linux/err.h> > #include <linux/types.h> > > #define PRU_RPROC_DRVNAME "pru-rproc" > > +/* > + * PRU_ICSS_CFG registers > + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only > + */ > +#define PRUSS_CFG_REVID 0x00 > +#define PRUSS_CFG_SYSCFG 0x04 > +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) > +#define PRUSS_CFG_CGR 0x10 > +#define PRUSS_CFG_ISRP 0x14 > +#define PRUSS_CFG_ISP 0x18 > +#define PRUSS_CFG_IESP 0x1C > +#define PRUSS_CFG_IECP 0x20 > +#define PRUSS_CFG_SCRP 0x24 > +#define PRUSS_CFG_PMAO 0x28 > +#define PRUSS_CFG_MII_RT 0x2C > +#define PRUSS_CFG_IEPCLK 0x30 > +#define PRUSS_CFG_SPP 0x34 > +#define PRUSS_CFG_PIN_MX 0x40 > + > +/* PRUSS_GPCFG register bits */ > +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) > + > +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 > +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) > + > +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 > +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) > + > +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) > +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 > +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) > + > +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) > + > +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 > +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) > + > +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 > +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) > + > +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 > +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) > +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) > + > +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) > +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 > + > +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 > +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) > + > +/* PRUSS_MII_RT register bits */ > +#define PRUSS_MII_RT_EVENT_EN BIT(0) > + > +/* PRUSS_SPP register bits */ > +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) > +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) Can we please move all the above definitions to private driver/soc/ti/pruss.h? You can also add pruss_cfg_read and pruss_cfg_update there. > + > +/* > + * enum pruss_gp_mux_sel - PRUSS GPI/O Mux modes for the > + * PRUSS_GPCFG0/1 registers > + * > + * NOTE: The below defines are the most common values, but there > + * are some exceptions like on 66AK2G, where the RESERVED and MII2 > + * values are interchanged. Also, this bit-field does not exist on > + * AM335x SoCs > + */ > +enum pruss_gp_mux_sel { > + PRUSS_GP_MUX_SEL_GP = 0, > + PRUSS_GP_MUX_SEL_ENDAT, > + PRUSS_GP_MUX_SEL_RESERVED, > + PRUSS_GP_MUX_SEL_SD, > + PRUSS_GP_MUX_SEL_MII2, > + PRUSS_GP_MUX_SEL_MAX, > +}; > + > +/* > + * enum pruss_gpi_mode - PRUSS GPI configuration modes, used > + * to program the PRUSS_GPCFG0/1 registers > + */ > +enum pruss_gpi_mode { > + PRUSS_GPI_MODE_DIRECT = 0, > + PRUSS_GPI_MODE_PARALLEL, > + PRUSS_GPI_MODE_28BIT_SHIFT, > + PRUSS_GPI_MODE_MII, > +}; > + > /** > * enum pruss_pru_id - PRU core identifiers > * @PRUSS_PRU0: PRU Core 0. cheers, -roger
On 15/03/23 17:37, Roger Quadros wrote: > Danish, > > On 13/03/2023 13:11, MD Danish Anwar wrote: >> From: Suman Anna <s-anna@ti.com> >> >> Add two new generic API pruss_cfg_read() and pruss_cfg_update() to >> the PRUSS platform driver to read and program respectively a register >> within the PRUSS CFG sub-module represented by a syscon driver. >> >> These APIs are internal to PRUSS driver. Various useful registers >> and macros for certain register bit-fields and their values have also >> been added. >> >> Signed-off-by: Suman Anna <s-anna@ti.com> >> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >> Signed-off-by: Puranjay Mohan <p-mohan@ti.com> >> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >> --- >> drivers/soc/ti/pruss.c | 39 ++++++++++++++ >> include/linux/remoteproc/pruss.h | 87 ++++++++++++++++++++++++++++++++ >> 2 files changed, 126 insertions(+) >> >> diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c >> index c8053c0d735f..26d8129b515c 100644 >> --- a/drivers/soc/ti/pruss.c >> +++ b/drivers/soc/ti/pruss.c >> @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, >> } >> EXPORT_SYMBOL_GPL(pruss_release_mem_region); >> >> +/** >> + * pruss_cfg_read() - read a PRUSS CFG sub-module register >> + * @pruss: the pruss instance handle >> + * @reg: register offset within the CFG sub-module >> + * @val: pointer to return the value in >> + * >> + * Reads a given register within the PRUSS CFG sub-module and >> + * returns it through the passed-in @val pointer >> + * >> + * Return: 0 on success, or an error code otherwise >> + */ >> +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) >> +{ >> + if (IS_ERR_OR_NULL(pruss)) >> + return -EINVAL; >> + >> + return regmap_read(pruss->cfg_regmap, reg, val); >> +} >> + >> +/** >> + * pruss_cfg_update() - configure a PRUSS CFG sub-module register >> + * @pruss: the pruss instance handle >> + * @reg: register offset within the CFG sub-module >> + * @mask: bit mask to use for programming the @val >> + * @val: value to write >> + * >> + * Programs a given register within the PRUSS CFG sub-module >> + * >> + * Return: 0 on success, or an error code otherwise >> + */ >> +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, >> + unsigned int mask, unsigned int val) >> +{ >> + if (IS_ERR_OR_NULL(pruss)) >> + return -EINVAL; >> + >> + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); >> +} >> + >> static void pruss_of_free_clk_provider(void *data) >> { >> struct device_node *clk_mux_np = data; >> diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h >> index 33f930e0a0ce..12ef10b9fe9a 100644 >> --- a/include/linux/remoteproc/pruss.h >> +++ b/include/linux/remoteproc/pruss.h >> @@ -10,12 +10,99 @@ >> #ifndef __LINUX_PRUSS_H >> #define __LINUX_PRUSS_H >> >> +#include <linux/bits.h> >> #include <linux/device.h> >> #include <linux/err.h> >> #include <linux/types.h> >> >> #define PRU_RPROC_DRVNAME "pru-rproc" >> >> +/* >> + * PRU_ICSS_CFG registers >> + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only >> + */ >> +#define PRUSS_CFG_REVID 0x00 >> +#define PRUSS_CFG_SYSCFG 0x04 >> +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) >> +#define PRUSS_CFG_CGR 0x10 >> +#define PRUSS_CFG_ISRP 0x14 >> +#define PRUSS_CFG_ISP 0x18 >> +#define PRUSS_CFG_IESP 0x1C >> +#define PRUSS_CFG_IECP 0x20 >> +#define PRUSS_CFG_SCRP 0x24 >> +#define PRUSS_CFG_PMAO 0x28 >> +#define PRUSS_CFG_MII_RT 0x2C >> +#define PRUSS_CFG_IEPCLK 0x30 >> +#define PRUSS_CFG_SPP 0x34 >> +#define PRUSS_CFG_PIN_MX 0x40 >> + >> +/* PRUSS_GPCFG register bits */ >> +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) >> + >> +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 >> +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) >> + >> +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 >> +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) >> + >> +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) >> +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 >> +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) >> + >> +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) >> + >> +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 >> +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) >> + >> +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 >> +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) >> + >> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 >> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) >> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) >> + >> +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) >> +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 >> + >> +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 >> +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) >> + >> +/* PRUSS_MII_RT register bits */ >> +#define PRUSS_MII_RT_EVENT_EN BIT(0) >> + >> +/* PRUSS_SPP register bits */ >> +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) >> +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) > > Can we please move all the above definitions to private driver/soc/ti/pruss.h? > You can also add pruss_cfg_read and pruss_cfg_update there. > Sure Roger, I'll move all these definitions to pruss.h >> + >> +/* >> + * enum pruss_gp_mux_sel - PRUSS GPI/O Mux modes for the >> + * PRUSS_GPCFG0/1 registers >> + * >> + * NOTE: The below defines are the most common values, but there >> + * are some exceptions like on 66AK2G, where the RESERVED and MII2 >> + * values are interchanged. Also, this bit-field does not exist on >> + * AM335x SoCs >> + */ >> +enum pruss_gp_mux_sel { >> + PRUSS_GP_MUX_SEL_GP = 0, >> + PRUSS_GP_MUX_SEL_ENDAT, >> + PRUSS_GP_MUX_SEL_RESERVED, >> + PRUSS_GP_MUX_SEL_SD, >> + PRUSS_GP_MUX_SEL_MII2, >> + PRUSS_GP_MUX_SEL_MAX, >> +}; >> + >> +/* >> + * enum pruss_gpi_mode - PRUSS GPI configuration modes, used >> + * to program the PRUSS_GPCFG0/1 registers >> + */ >> +enum pruss_gpi_mode { >> + PRUSS_GPI_MODE_DIRECT = 0, >> + PRUSS_GPI_MODE_PARALLEL, >> + PRUSS_GPI_MODE_28BIT_SHIFT, >> + PRUSS_GPI_MODE_MII, >> +}; >> + >> /** >> * enum pruss_pru_id - PRU core identifiers >> * @PRUSS_PRU0: PRU Core 0. > > cheers, > -roger
Roger, On 16/03/23 16:38, Md Danish Anwar wrote: > > On 15/03/23 17:37, Roger Quadros wrote: >> Danish, >> >> On 13/03/2023 13:11, MD Danish Anwar wrote: >>> From: Suman Anna <s-anna@ti.com> >>> >>> Add two new generic API pruss_cfg_read() and pruss_cfg_update() to >>> the PRUSS platform driver to read and program respectively a register >>> within the PRUSS CFG sub-module represented by a syscon driver. >>> >>> These APIs are internal to PRUSS driver. Various useful registers >>> and macros for certain register bit-fields and their values have also >>> been added. >>> >>> Signed-off-by: Suman Anna <s-anna@ti.com> >>> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>> Signed-off-by: Puranjay Mohan <p-mohan@ti.com> >>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >>> --- >>> drivers/soc/ti/pruss.c | 39 ++++++++++++++ >>> include/linux/remoteproc/pruss.h | 87 ++++++++++++++++++++++++++++++++ >>> 2 files changed, 126 insertions(+) >>> >>> diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c >>> index c8053c0d735f..26d8129b515c 100644 >>> --- a/drivers/soc/ti/pruss.c >>> +++ b/drivers/soc/ti/pruss.c >>> @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, >>> } >>> EXPORT_SYMBOL_GPL(pruss_release_mem_region); >>> >>> +/** >>> + * pruss_cfg_read() - read a PRUSS CFG sub-module register >>> + * @pruss: the pruss instance handle >>> + * @reg: register offset within the CFG sub-module >>> + * @val: pointer to return the value in >>> + * >>> + * Reads a given register within the PRUSS CFG sub-module and >>> + * returns it through the passed-in @val pointer >>> + * >>> + * Return: 0 on success, or an error code otherwise >>> + */ >>> +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) >>> +{ >>> + if (IS_ERR_OR_NULL(pruss)) >>> + return -EINVAL; >>> + >>> + return regmap_read(pruss->cfg_regmap, reg, val); >>> +} >>> + >>> +/** >>> + * pruss_cfg_update() - configure a PRUSS CFG sub-module register >>> + * @pruss: the pruss instance handle >>> + * @reg: register offset within the CFG sub-module >>> + * @mask: bit mask to use for programming the @val >>> + * @val: value to write >>> + * >>> + * Programs a given register within the PRUSS CFG sub-module >>> + * >>> + * Return: 0 on success, or an error code otherwise >>> + */ >>> +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, >>> + unsigned int mask, unsigned int val) >>> +{ >>> + if (IS_ERR_OR_NULL(pruss)) >>> + return -EINVAL; >>> + >>> + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); >>> +} >>> + >>> static void pruss_of_free_clk_provider(void *data) >>> { >>> struct device_node *clk_mux_np = data; >>> diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h >>> index 33f930e0a0ce..12ef10b9fe9a 100644 >>> --- a/include/linux/remoteproc/pruss.h >>> +++ b/include/linux/remoteproc/pruss.h >>> @@ -10,12 +10,99 @@ >>> #ifndef __LINUX_PRUSS_H >>> #define __LINUX_PRUSS_H >>> >>> +#include <linux/bits.h> >>> #include <linux/device.h> >>> #include <linux/err.h> >>> #include <linux/types.h> >>> >>> #define PRU_RPROC_DRVNAME "pru-rproc" >>> >>> +/* >>> + * PRU_ICSS_CFG registers >>> + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only >>> + */ >>> +#define PRUSS_CFG_REVID 0x00 >>> +#define PRUSS_CFG_SYSCFG 0x04 >>> +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) >>> +#define PRUSS_CFG_CGR 0x10 >>> +#define PRUSS_CFG_ISRP 0x14 >>> +#define PRUSS_CFG_ISP 0x18 >>> +#define PRUSS_CFG_IESP 0x1C >>> +#define PRUSS_CFG_IECP 0x20 >>> +#define PRUSS_CFG_SCRP 0x24 >>> +#define PRUSS_CFG_PMAO 0x28 >>> +#define PRUSS_CFG_MII_RT 0x2C >>> +#define PRUSS_CFG_IEPCLK 0x30 >>> +#define PRUSS_CFG_SPP 0x34 >>> +#define PRUSS_CFG_PIN_MX 0x40 >>> + >>> +/* PRUSS_GPCFG register bits */ >>> +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) >>> + >>> +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 >>> +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) >>> + >>> +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 >>> +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) >>> + >>> +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) >>> +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 >>> +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) >>> + >>> +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) >>> + >>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 >>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) >>> + >>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 >>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) >>> + >>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 >>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) >>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) >>> + >>> +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) >>> +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 >>> + >>> +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 >>> +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) >>> + >>> +/* PRUSS_MII_RT register bits */ >>> +#define PRUSS_MII_RT_EVENT_EN BIT(0) >>> + >>> +/* PRUSS_SPP register bits */ >>> +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) >>> +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) >> >> Can we please move all the above definitions to private driver/soc/ti/pruss.h? >> You can also add pruss_cfg_read and pruss_cfg_update there. >> There is no driver/soc/ti/pruss.h. The pruss.h file is located in include/linux/remoteproc/pruss.h and there is one pruss_driver.h file which is located in include/linux/pruss_driver.h Do you want me to create another header file at driver/soc/ti/pruss.h and place all these definitions inside that? Please let me know. > > Sure Roger, I'll move all these definitions to pruss.h > >>> + >>> +/* >>> + * enum pruss_gp_mux_sel - PRUSS GPI/O Mux modes for the >>> + * PRUSS_GPCFG0/1 registers >>> + * >>> + * NOTE: The below defines are the most common values, but there >>> + * are some exceptions like on 66AK2G, where the RESERVED and MII2 >>> + * values are interchanged. Also, this bit-field does not exist on >>> + * AM335x SoCs >>> + */ >>> +enum pruss_gp_mux_sel { >>> + PRUSS_GP_MUX_SEL_GP = 0, >>> + PRUSS_GP_MUX_SEL_ENDAT, >>> + PRUSS_GP_MUX_SEL_RESERVED, >>> + PRUSS_GP_MUX_SEL_SD, >>> + PRUSS_GP_MUX_SEL_MII2, >>> + PRUSS_GP_MUX_SEL_MAX, >>> +}; >>> + >>> +/* >>> + * enum pruss_gpi_mode - PRUSS GPI configuration modes, used >>> + * to program the PRUSS_GPCFG0/1 registers >>> + */ >>> +enum pruss_gpi_mode { >>> + PRUSS_GPI_MODE_DIRECT = 0, >>> + PRUSS_GPI_MODE_PARALLEL, >>> + PRUSS_GPI_MODE_28BIT_SHIFT, >>> + PRUSS_GPI_MODE_MII, >>> +}; >>> + >>> /** >>> * enum pruss_pru_id - PRU core identifiers >>> * @PRUSS_PRU0: PRU Core 0. >> >> cheers, >> -roger >
On 16/03/2023 13:29, Md Danish Anwar wrote: > Roger, > > On 16/03/23 16:38, Md Danish Anwar wrote: >> >> On 15/03/23 17:37, Roger Quadros wrote: >>> Danish, >>> >>> On 13/03/2023 13:11, MD Danish Anwar wrote: >>>> From: Suman Anna <s-anna@ti.com> >>>> >>>> Add two new generic API pruss_cfg_read() and pruss_cfg_update() to >>>> the PRUSS platform driver to read and program respectively a register >>>> within the PRUSS CFG sub-module represented by a syscon driver. >>>> >>>> These APIs are internal to PRUSS driver. Various useful registers >>>> and macros for certain register bit-fields and their values have also >>>> been added. >>>> >>>> Signed-off-by: Suman Anna <s-anna@ti.com> >>>> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>>> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>>> Signed-off-by: Puranjay Mohan <p-mohan@ti.com> >>>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >>>> --- >>>> drivers/soc/ti/pruss.c | 39 ++++++++++++++ >>>> include/linux/remoteproc/pruss.h | 87 ++++++++++++++++++++++++++++++++ >>>> 2 files changed, 126 insertions(+) >>>> >>>> diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c >>>> index c8053c0d735f..26d8129b515c 100644 >>>> --- a/drivers/soc/ti/pruss.c >>>> +++ b/drivers/soc/ti/pruss.c >>>> @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, >>>> } >>>> EXPORT_SYMBOL_GPL(pruss_release_mem_region); >>>> >>>> +/** >>>> + * pruss_cfg_read() - read a PRUSS CFG sub-module register >>>> + * @pruss: the pruss instance handle >>>> + * @reg: register offset within the CFG sub-module >>>> + * @val: pointer to return the value in >>>> + * >>>> + * Reads a given register within the PRUSS CFG sub-module and >>>> + * returns it through the passed-in @val pointer >>>> + * >>>> + * Return: 0 on success, or an error code otherwise >>>> + */ >>>> +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) >>>> +{ >>>> + if (IS_ERR_OR_NULL(pruss)) >>>> + return -EINVAL; >>>> + >>>> + return regmap_read(pruss->cfg_regmap, reg, val); >>>> +} >>>> + >>>> +/** >>>> + * pruss_cfg_update() - configure a PRUSS CFG sub-module register >>>> + * @pruss: the pruss instance handle >>>> + * @reg: register offset within the CFG sub-module >>>> + * @mask: bit mask to use for programming the @val >>>> + * @val: value to write >>>> + * >>>> + * Programs a given register within the PRUSS CFG sub-module >>>> + * >>>> + * Return: 0 on success, or an error code otherwise >>>> + */ >>>> +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, >>>> + unsigned int mask, unsigned int val) >>>> +{ >>>> + if (IS_ERR_OR_NULL(pruss)) >>>> + return -EINVAL; >>>> + >>>> + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); >>>> +} >>>> + >>>> static void pruss_of_free_clk_provider(void *data) >>>> { >>>> struct device_node *clk_mux_np = data; >>>> diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h >>>> index 33f930e0a0ce..12ef10b9fe9a 100644 >>>> --- a/include/linux/remoteproc/pruss.h >>>> +++ b/include/linux/remoteproc/pruss.h >>>> @@ -10,12 +10,99 @@ >>>> #ifndef __LINUX_PRUSS_H >>>> #define __LINUX_PRUSS_H >>>> >>>> +#include <linux/bits.h> >>>> #include <linux/device.h> >>>> #include <linux/err.h> >>>> #include <linux/types.h> >>>> >>>> #define PRU_RPROC_DRVNAME "pru-rproc" >>>> >>>> +/* >>>> + * PRU_ICSS_CFG registers >>>> + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only >>>> + */ >>>> +#define PRUSS_CFG_REVID 0x00 >>>> +#define PRUSS_CFG_SYSCFG 0x04 >>>> +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) >>>> +#define PRUSS_CFG_CGR 0x10 >>>> +#define PRUSS_CFG_ISRP 0x14 >>>> +#define PRUSS_CFG_ISP 0x18 >>>> +#define PRUSS_CFG_IESP 0x1C >>>> +#define PRUSS_CFG_IECP 0x20 >>>> +#define PRUSS_CFG_SCRP 0x24 >>>> +#define PRUSS_CFG_PMAO 0x28 >>>> +#define PRUSS_CFG_MII_RT 0x2C >>>> +#define PRUSS_CFG_IEPCLK 0x30 >>>> +#define PRUSS_CFG_SPP 0x34 >>>> +#define PRUSS_CFG_PIN_MX 0x40 >>>> + >>>> +/* PRUSS_GPCFG register bits */ >>>> +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) >>>> + >>>> +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 >>>> +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) >>>> + >>>> +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 >>>> +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) >>>> +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 >>>> +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 >>>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 >>>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 >>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) >>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) >>>> + >>>> +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) >>>> +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 >>>> + >>>> +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 >>>> +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) >>>> + >>>> +/* PRUSS_MII_RT register bits */ >>>> +#define PRUSS_MII_RT_EVENT_EN BIT(0) >>>> + >>>> +/* PRUSS_SPP register bits */ >>>> +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) >>>> +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) >>> >>> Can we please move all the above definitions to private driver/soc/ti/pruss.h? >>> You can also add pruss_cfg_read and pruss_cfg_update there. >>> > > There is no driver/soc/ti/pruss.h. The pruss.h file is located in > include/linux/remoteproc/pruss.h and there is one pruss_driver.h file which is > located in include/linux/pruss_driver.h > > Do you want me to create another header file at driver/soc/ti/pruss.h and place > all these definitions inside that? > > Please let me know. Yes. All private definitions should sit in driver/soc/ti/pruss.h cheers, roger
On 16/03/23 17:02, Roger Quadros wrote: > > > On 16/03/2023 13:29, Md Danish Anwar wrote: >> Roger, >> >> On 16/03/23 16:38, Md Danish Anwar wrote: >>> >>> On 15/03/23 17:37, Roger Quadros wrote: >>>> Danish, >>>> >>>> On 13/03/2023 13:11, MD Danish Anwar wrote: >>>>> From: Suman Anna <s-anna@ti.com> >>>>> >>>>> Add two new generic API pruss_cfg_read() and pruss_cfg_update() to >>>>> the PRUSS platform driver to read and program respectively a register >>>>> within the PRUSS CFG sub-module represented by a syscon driver. >>>>> >>>>> These APIs are internal to PRUSS driver. Various useful registers >>>>> and macros for certain register bit-fields and their values have also >>>>> been added. >>>>> >>>>> Signed-off-by: Suman Anna <s-anna@ti.com> >>>>> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>>>> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> >>>>> Signed-off-by: Puranjay Mohan <p-mohan@ti.com> >>>>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >>>>> --- >>>>> drivers/soc/ti/pruss.c | 39 ++++++++++++++ >>>>> include/linux/remoteproc/pruss.h | 87 ++++++++++++++++++++++++++++++++ >>>>> 2 files changed, 126 insertions(+) >>>>> >>>>> diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c >>>>> index c8053c0d735f..26d8129b515c 100644 >>>>> --- a/drivers/soc/ti/pruss.c >>>>> +++ b/drivers/soc/ti/pruss.c >>>>> @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, >>>>> } >>>>> EXPORT_SYMBOL_GPL(pruss_release_mem_region); >>>>> >>>>> +/** >>>>> + * pruss_cfg_read() - read a PRUSS CFG sub-module register >>>>> + * @pruss: the pruss instance handle >>>>> + * @reg: register offset within the CFG sub-module >>>>> + * @val: pointer to return the value in >>>>> + * >>>>> + * Reads a given register within the PRUSS CFG sub-module and >>>>> + * returns it through the passed-in @val pointer >>>>> + * >>>>> + * Return: 0 on success, or an error code otherwise >>>>> + */ >>>>> +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) >>>>> +{ >>>>> + if (IS_ERR_OR_NULL(pruss)) >>>>> + return -EINVAL; >>>>> + >>>>> + return regmap_read(pruss->cfg_regmap, reg, val); >>>>> +} >>>>> + >>>>> +/** >>>>> + * pruss_cfg_update() - configure a PRUSS CFG sub-module register >>>>> + * @pruss: the pruss instance handle >>>>> + * @reg: register offset within the CFG sub-module >>>>> + * @mask: bit mask to use for programming the @val >>>>> + * @val: value to write >>>>> + * >>>>> + * Programs a given register within the PRUSS CFG sub-module >>>>> + * >>>>> + * Return: 0 on success, or an error code otherwise >>>>> + */ >>>>> +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, >>>>> + unsigned int mask, unsigned int val) >>>>> +{ >>>>> + if (IS_ERR_OR_NULL(pruss)) >>>>> + return -EINVAL; >>>>> + >>>>> + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); >>>>> +} >>>>> + >>>>> static void pruss_of_free_clk_provider(void *data) >>>>> { >>>>> struct device_node *clk_mux_np = data; >>>>> diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h >>>>> index 33f930e0a0ce..12ef10b9fe9a 100644 >>>>> --- a/include/linux/remoteproc/pruss.h >>>>> +++ b/include/linux/remoteproc/pruss.h >>>>> @@ -10,12 +10,99 @@ >>>>> #ifndef __LINUX_PRUSS_H >>>>> #define __LINUX_PRUSS_H >>>>> >>>>> +#include <linux/bits.h> >>>>> #include <linux/device.h> >>>>> #include <linux/err.h> >>>>> #include <linux/types.h> >>>>> >>>>> #define PRU_RPROC_DRVNAME "pru-rproc" >>>>> >>>>> +/* >>>>> + * PRU_ICSS_CFG registers >>>>> + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only >>>>> + */ >>>>> +#define PRUSS_CFG_REVID 0x00 >>>>> +#define PRUSS_CFG_SYSCFG 0x04 >>>>> +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) >>>>> +#define PRUSS_CFG_CGR 0x10 >>>>> +#define PRUSS_CFG_ISRP 0x14 >>>>> +#define PRUSS_CFG_ISP 0x18 >>>>> +#define PRUSS_CFG_IESP 0x1C >>>>> +#define PRUSS_CFG_IECP 0x20 >>>>> +#define PRUSS_CFG_SCRP 0x24 >>>>> +#define PRUSS_CFG_PMAO 0x28 >>>>> +#define PRUSS_CFG_MII_RT 0x2C >>>>> +#define PRUSS_CFG_IEPCLK 0x30 >>>>> +#define PRUSS_CFG_SPP 0x34 >>>>> +#define PRUSS_CFG_PIN_MX 0x40 >>>>> + >>>>> +/* PRUSS_GPCFG register bits */ >>>>> +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 >>>>> +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 >>>>> +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) >>>>> +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 >>>>> +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 >>>>> +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 >>>>> +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 >>>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) >>>>> +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) >>>>> +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 >>>>> + >>>>> +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 >>>>> +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) >>>>> + >>>>> +/* PRUSS_MII_RT register bits */ >>>>> +#define PRUSS_MII_RT_EVENT_EN BIT(0) >>>>> + >>>>> +/* PRUSS_SPP register bits */ >>>>> +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) >>>>> +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) >>>> >>>> Can we please move all the above definitions to private driver/soc/ti/pruss.h? >>>> You can also add pruss_cfg_read and pruss_cfg_update there. >>>> >> >> There is no driver/soc/ti/pruss.h. The pruss.h file is located in >> include/linux/remoteproc/pruss.h and there is one pruss_driver.h file which is >> located in include/linux/pruss_driver.h >> >> Do you want me to create another header file at driver/soc/ti/pruss.h and place >> all these definitions inside that? >> >> Please let me know. > > Yes. All private definitions should sit in driver/soc/ti/pruss.h > Should I keep the change the name to pruss_internal.h? As we already have a pruss.h inside include/linux/remoteproc, just to avoid any confusion. > > cheers, > roger
diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c index c8053c0d735f..26d8129b515c 100644 --- a/drivers/soc/ti/pruss.c +++ b/drivers/soc/ti/pruss.c @@ -164,6 +164,45 @@ int pruss_release_mem_region(struct pruss *pruss, } EXPORT_SYMBOL_GPL(pruss_release_mem_region); +/** + * pruss_cfg_read() - read a PRUSS CFG sub-module register + * @pruss: the pruss instance handle + * @reg: register offset within the CFG sub-module + * @val: pointer to return the value in + * + * Reads a given register within the PRUSS CFG sub-module and + * returns it through the passed-in @val pointer + * + * Return: 0 on success, or an error code otherwise + */ +static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val) +{ + if (IS_ERR_OR_NULL(pruss)) + return -EINVAL; + + return regmap_read(pruss->cfg_regmap, reg, val); +} + +/** + * pruss_cfg_update() - configure a PRUSS CFG sub-module register + * @pruss: the pruss instance handle + * @reg: register offset within the CFG sub-module + * @mask: bit mask to use for programming the @val + * @val: value to write + * + * Programs a given register within the PRUSS CFG sub-module + * + * Return: 0 on success, or an error code otherwise + */ +static int pruss_cfg_update(struct pruss *pruss, unsigned int reg, + unsigned int mask, unsigned int val) +{ + if (IS_ERR_OR_NULL(pruss)) + return -EINVAL; + + return regmap_update_bits(pruss->cfg_regmap, reg, mask, val); +} + static void pruss_of_free_clk_provider(void *data) { struct device_node *clk_mux_np = data; diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h index 33f930e0a0ce..12ef10b9fe9a 100644 --- a/include/linux/remoteproc/pruss.h +++ b/include/linux/remoteproc/pruss.h @@ -10,12 +10,99 @@ #ifndef __LINUX_PRUSS_H #define __LINUX_PRUSS_H +#include <linux/bits.h> #include <linux/device.h> #include <linux/err.h> #include <linux/types.h> #define PRU_RPROC_DRVNAME "pru-rproc" +/* + * PRU_ICSS_CFG registers + * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only + */ +#define PRUSS_CFG_REVID 0x00 +#define PRUSS_CFG_SYSCFG 0x04 +#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4) +#define PRUSS_CFG_CGR 0x10 +#define PRUSS_CFG_ISRP 0x14 +#define PRUSS_CFG_ISP 0x18 +#define PRUSS_CFG_IESP 0x1C +#define PRUSS_CFG_IECP 0x20 +#define PRUSS_CFG_SCRP 0x24 +#define PRUSS_CFG_PMAO 0x28 +#define PRUSS_CFG_MII_RT 0x2C +#define PRUSS_CFG_IEPCLK 0x30 +#define PRUSS_CFG_SPP 0x34 +#define PRUSS_CFG_PIN_MX 0x40 + +/* PRUSS_GPCFG register bits */ +#define PRUSS_GPCFG_PRU_GPO_SH_SEL BIT(25) + +#define PRUSS_GPCFG_PRU_DIV1_SHIFT 20 +#define PRUSS_GPCFG_PRU_DIV1_MASK GENMASK(24, 20) + +#define PRUSS_GPCFG_PRU_DIV0_SHIFT 15 +#define PRUSS_GPCFG_PRU_DIV0_MASK GENMASK(15, 19) + +#define PRUSS_GPCFG_PRU_GPO_MODE BIT(14) +#define PRUSS_GPCFG_PRU_GPO_MODE_DIRECT 0 +#define PRUSS_GPCFG_PRU_GPO_MODE_SERIAL BIT(14) + +#define PRUSS_GPCFG_PRU_GPI_SB BIT(13) + +#define PRUSS_GPCFG_PRU_GPI_DIV1_SHIFT 8 +#define PRUSS_GPCFG_PRU_GPI_DIV1_MASK GENMASK(12, 8) + +#define PRUSS_GPCFG_PRU_GPI_DIV0_SHIFT 3 +#define PRUSS_GPCFG_PRU_GPI_DIV0_MASK GENMASK(7, 3) + +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_POSITIVE 0 +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE_NEGATIVE BIT(2) +#define PRUSS_GPCFG_PRU_GPI_CLK_MODE BIT(2) + +#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0) +#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0 + +#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26 +#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26) + +/* PRUSS_MII_RT register bits */ +#define PRUSS_MII_RT_EVENT_EN BIT(0) + +/* PRUSS_SPP register bits */ +#define PRUSS_SPP_XFER_SHIFT_EN BIT(1) +#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0) + +/* + * enum pruss_gp_mux_sel - PRUSS GPI/O Mux modes for the + * PRUSS_GPCFG0/1 registers + * + * NOTE: The below defines are the most common values, but there + * are some exceptions like on 66AK2G, where the RESERVED and MII2 + * values are interchanged. Also, this bit-field does not exist on + * AM335x SoCs + */ +enum pruss_gp_mux_sel { + PRUSS_GP_MUX_SEL_GP = 0, + PRUSS_GP_MUX_SEL_ENDAT, + PRUSS_GP_MUX_SEL_RESERVED, + PRUSS_GP_MUX_SEL_SD, + PRUSS_GP_MUX_SEL_MII2, + PRUSS_GP_MUX_SEL_MAX, +}; + +/* + * enum pruss_gpi_mode - PRUSS GPI configuration modes, used + * to program the PRUSS_GPCFG0/1 registers + */ +enum pruss_gpi_mode { + PRUSS_GPI_MODE_DIRECT = 0, + PRUSS_GPI_MODE_PARALLEL, + PRUSS_GPI_MODE_28BIT_SHIFT, + PRUSS_GPI_MODE_MII, +}; + /** * enum pruss_pru_id - PRU core identifiers * @PRUSS_PRU0: PRU Core 0.