diff options
Diffstat (limited to 'bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c')
| -rw-r--r-- | bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c | 115 |
1 files changed, 114 insertions, 1 deletions
diff --git a/bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c b/bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c index 7adbcbb365..cec30d2cc5 100644 --- a/bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c +++ b/bsps/shared/freebsd/sys/arm/ti/ti_pinmux.c @@ -34,9 +34,12 @@ * Exposes pinmux module to pinctrl-compatible interface */ #include <sys/cdefs.h> +#ifndef __rtems__ __FBSDID("$FreeBSD$"); +#endif /* __rtems__ */ #include <sys/param.h> +#ifndef __rtems__ #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> @@ -55,22 +58,52 @@ __FBSDID("$FreeBSD$"); #include <dev/fdt/fdt_pinctrl.h> #include <arm/ti/omap4/omap4_scm_padconf.h> +#else /* __rtems__ */ +#include <ofw/ofw_compat.h> +#endif /* __rtems__ */ #include <arm/ti/am335x/am335x_scm_padconf.h> #include <arm/ti/ti_cpuid.h> +#ifndef __rtems__ #include "ti_pinmux.h" +#else /* __rtems__ */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <libfdt.h> +#include <rtems/bspIo.h> +#include <rtems/sysinit.h> +#include <arm/ti/ti_pinmux.h> +#endif /* __rtems__ */ struct pincfg { uint32_t reg; uint32_t conf; }; +#ifndef __rtems__ static struct resource_spec ti_pinmux_res_spec[] = { { SYS_RES_MEMORY, 0, RF_ACTIVE }, /* Control memory window */ { -1, 0 } }; +#endif /* __rtems__ */ + +#ifdef __rtems__ +struct ti_pinmux_softc { +#ifndef __rtems__ + device_t sc_dev; + struct resource * sc_res[4]; + bus_space_tag_t sc_bst; + bus_space_handle_t sc_bsh; +#else /* __rtems__ */ + int sc_bst; + uintptr_t sc_bsh; +#endif /* __rtems__ */ +}; +#endif /* __rtems__ */ static struct ti_pinmux_softc *ti_pinmux_sc; +#ifndef __rtems__ #define ti_pinmux_read_2(sc, reg) \ bus_space_read_2((sc)->sc_bst, (sc)->sc_bsh, (reg)) #define ti_pinmux_write_2(sc, reg, val) \ @@ -79,6 +112,19 @@ static struct ti_pinmux_softc *ti_pinmux_sc; bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg)) #define ti_pinmux_write_4(sc, reg, val) \ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val)) +#else /* __rtems__ */ +static uint16_t +ti_pinmux_read_2(struct ti_pinmux_softc *sc, uintptr_t ofs) { + uintptr_t bsh = sc->sc_bsh; + return *(uint16_t volatile *)(bsh + ofs); +} +static void +ti_pinmux_write_2(struct ti_pinmux_softc *sc, uintptr_t ofs, uint16_t val) { + uintptr_t bsh = sc->sc_bsh; + uint16_t volatile *bsp = (uint16_t volatile *)(bsh + ofs); + *bsp = val; +} +#endif /* __rtems__ */ /** @@ -149,16 +195,22 @@ ti_pinmux_padconf_set_internal(struct ti_pinmux_softc *sc, /* couldn't find the mux mode */ if (mode >= 8) { +#ifndef __rtems__ printf("Invalid mode \"%s\"\n", muxmode); +#else /* __rtems__ */ + printk("Invalid mode \"%s\"\n", muxmode); +#endif /* __rtems__ */ return (EINVAL); } /* set the mux mode */ reg_val |= (uint16_t)(mode & ti_pinmux_dev->padconf_muxmode_mask); +#ifndef __rtems__ if (bootverbose) device_printf(sc->sc_dev, "setting internal %x for %s\n", reg_val, muxmode); +#endif /* __rtems__ */ /* write the register value (16-bit writes) */ ti_pinmux_write_2(sc, padconf->reg_off, reg_val); @@ -331,14 +383,20 @@ ti_pinmux_padconf_get_gpiomode(uint32_t gpio, unsigned int *state) } static int +#ifndef __rtems__ ti_pinmux_configure_pins(device_t dev, phandle_t cfgxref) +#else /* __rtems__ */ +ti_pinmux_configure_pins(struct ti_pinmux_softc *sc, phandle_t cfgxref) +#endif /* __rtems__ */ { struct pincfg *cfgtuples, *cfg; phandle_t cfgnode; int i, ntuples; +#ifndef __rtems__ static struct ti_pinmux_softc *sc; sc = device_get_softc(dev); +#endif /* __rtems__ */ cfgnode = OF_node_from_xref(cfgxref); ntuples = OF_getencprop_alloc_multi(cfgnode, "pinctrl-single,pins", sizeof(*cfgtuples), (void **)&cfgtuples); @@ -350,12 +408,14 @@ ti_pinmux_configure_pins(device_t dev, phandle_t cfgxref) return (0); /* Empty property is not an error. */ for (i = 0, cfg = cfgtuples; i < ntuples; i++, cfg++) { +#ifndef __rtems__ if (bootverbose) { char name[32]; OF_getprop(cfgnode, "name", &name, sizeof(name)); printf("%16s: muxreg 0x%04x muxval 0x%02x\n", name, cfg->reg, cfg->conf); } +#endif /* __rtems__ */ /* write the register value (16-bit writes) */ ti_pinmux_write_2(sc, cfg->reg, cfg->conf); @@ -370,6 +430,7 @@ ti_pinmux_configure_pins(device_t dev, phandle_t cfgxref) * Device part of OMAP SCM driver */ +#ifndef __rtems__ static int ti_pinmux_probe(device_t dev) { @@ -404,7 +465,27 @@ ti_pinmux_probe(device_t dev) device_set_desc(dev, "TI Pinmux Module"); return (BUS_PROBE_DEFAULT); } +#endif /* __rtems__ */ + +static void +beagle_pinctrl_configure_children(struct ti_pinmux_softc *sc, phandle_t parent) +{ + phandle_t node; + int len; + uint32_t phandle; + + for (node = OF_child(parent); node != 0; node = OF_peer(node)) { + if (rtems_ofw_node_status(node)) { + beagle_pinctrl_configure_children(sc, node); + len = OF_getencprop(node, "pinctrl-0", &phandle, sizeof(phandle)); + if (len == sizeof(phandle)) { + ti_pinmux_configure_pins(sc, phandle); + } + } + } +} +#ifndef __rtems__ /** * ti_pinmux_attach - attaches the pinmux to the simplebus * @dev: new device @@ -440,7 +521,38 @@ ti_pinmux_attach(device_t dev) return (0); } +#endif + +void +beagle_pinmux_init(phandle_t node) +{ + static struct ti_pinmux_softc pinmux_softc; + rtems_ofw_memory_area reg; + int rv; + + if (!rtems_ofw_is_node_compatible(node, "pinctrl-single")) + return ; + + switch (ti_chip()) { + case CHIP_AM335X: + ti_pinmux_dev = &ti_am335x_pinmux_dev; + break; + default: + printk("Unknown CPU in pinmux\n"); + return ; + } + + rv = rtems_ofw_get_reg(node, ®, sizeof(reg)); + if (rv == -1) { + printk("pinmux_init: rtems_ofw_get_reg failed %d\n", rv); + return ; + } + pinmux_softc.sc_bsh = reg.start; + + beagle_pinctrl_configure_children(&pinmux_softc, OF_peer(0)); +} +#ifndef __rtems__ static device_method_t ti_pinmux_methods[] = { DEVMETHOD(device_probe, ti_pinmux_probe), DEVMETHOD(device_attach, ti_pinmux_attach), @@ -458,4 +570,5 @@ static driver_t ti_pinmux_driver = { static devclass_t ti_pinmux_devclass; -DRIVER_MODULE(ti_pinmux, simplebus, ti_pinmux_driver, ti_pinmux_devclass, 0, 0);
\ No newline at end of file +DRIVER_MODULE(ti_pinmux, simplebus, ti_pinmux_driver, ti_pinmux_devclass, 0, 0); +#endif /* __rtems__ */ |