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freebsd/cgem: Add device tree support

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This reintroduces device tree support to the CGEM driver while
preserving the ability to statically define CGEM interfaces.
This commit is contained in:
Kinsey Moore 2022-11-08 23:06:36 -06:00 committed by Joel Sherrill
parent f462c4de5f
commit fef8b8850b
1 changed files with 29 additions and 13 deletions
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42
freebsd/sys/dev/cadence/if_cgem.c
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@ -72,11 +72,9 @@ __FBSDID("$FreeBSD$");
#include <net/bpf.h> #include <net/bpf.h>
#include <net/bpfdesc.h> #include <net/bpfdesc.h>
#ifndef __rtems__
#include <dev/fdt/fdt_common.h> #include <dev/fdt/fdt_common.h>
#include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h> #include <dev/ofw/ofw_bus_subr.h>
#endif /* __rtems__ */
#include <dev/mii/mii.h> #include <dev/mii/mii.h>
#include <dev/mii/miivar.h> #include <dev/mii/miivar.h>
@ -92,6 +90,7 @@ __FBSDID("$FreeBSD$");
#pragma GCC diagnostic ignored "-Wpointer-sign" #pragma GCC diagnostic ignored "-Wpointer-sign"
#pragma GCC diagnostic ignored "-Wincompatible-pointer-types" #pragma GCC diagnostic ignored "-Wincompatible-pointer-types"
#include <rtems/bsd/bsd.h> #include <rtems/bsd/bsd.h>
#include <rtems/bsd/local/opt_platform.h>
#endif /* __rtems__ */ #endif /* __rtems__ */
#define IF_CGEM_NAME "cgem" #define IF_CGEM_NAME "cgem"
@ -111,13 +110,14 @@ __FBSDID("$FreeBSD$");
#define CGEM_CKSUM_ASSIST (CSUM_IP | CSUM_TCP | CSUM_UDP | \ #define CGEM_CKSUM_ASSIST (CSUM_IP | CSUM_TCP | CSUM_UDP | \
CSUM_TCP_IPV6 | CSUM_UDP_IPV6) CSUM_TCP_IPV6 | CSUM_UDP_IPV6)
#ifndef __rtems__
static struct ofw_compat_data compat_data[] = { static struct ofw_compat_data compat_data[] = {
{ "cadence,gem", 1 }, { "cadence,gem", 1 },
{ "cdns,macb", 1 }, { "cdns,macb", 1 },
#ifdef __rtems__
{ "cdns,gem", 1 },
#endif
{ NULL, 0 }, { NULL, 0 },
}; };
#endif /* __rtems__ */
struct cgem_softc { struct cgem_softc {
if_t ifp; if_t ifp;
@ -1947,13 +1947,20 @@ static int
cgem_probe(device_t dev) cgem_probe(device_t dev)
{ {
#ifndef __rtems__ #ifdef __rtems__
#ifdef FDT
if (bsp_fdt_get()) {
#else
if (0) {
#endif
#endif /* __rtems__ */
if (!ofw_bus_status_okay(dev)) if (!ofw_bus_status_okay(dev))
return (ENXIO); return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
return (ENXIO); return (ENXIO);
#else /* __rtems__ */ #ifdef __rtems__
}
struct cgem_softc *sc = device_get_softc(dev); struct cgem_softc *sc = device_get_softc(dev);
int val, rid = 0; int val, rid = 0;
@ -1983,24 +1990,34 @@ cgem_attach(device_t dev)
{ {
struct cgem_softc *sc = device_get_softc(dev); struct cgem_softc *sc = device_get_softc(dev);
if_t ifp = NULL; if_t ifp = NULL;
#ifndef __rtems__
phandle_t node; phandle_t node;
pcell_t cell; pcell_t cell;
#endif /* __rtems__ */
int rid, err; int rid, err;
u_char eaddr[ETHER_ADDR_LEN]; u_char eaddr[ETHER_ADDR_LEN];
sc->dev = dev; sc->dev = dev;
CGEM_LOCK_INIT(sc); CGEM_LOCK_INIT(sc);
#ifndef __rtems__ #ifdef __rtems__
#ifdef FDT
if (bsp_fdt_get()) {
#else
if (0) {
#endif
#endif /* __rtems__ */
/* Get reference clock number and base divider from fdt. */ /* Get reference clock number and base divider from fdt. */
node = ofw_bus_get_node(dev); node = ofw_bus_get_node(dev);
sc->ref_clk_num = 0; sc->ref_clk_num = 0;
if (OF_getprop(node, "ref-clock-num", &cell, sizeof(cell)) > 0) if (OF_getprop(node, "ref-clock-num", &cell, sizeof(cell)) > 0)
sc->ref_clk_num = fdt32_to_cpu(cell); sc->ref_clk_num = fdt32_to_cpu(cell);
#else /* __rtems__ */ #ifdef __rtems__
sc->ref_clk_num = device_get_unit(dev); /* Else for ref-clock-num OF_getprop */
else
sc->ref_clk_num = device_get_unit(dev);
} else {
sc->ref_clk_num = device_get_unit(dev);
sc->phy_contype = MII_CONTYPE_RGMII_ID;
}
#endif /* __rtems__ */ #endif /* __rtems__ */
/* Get memory resource. */ /* Get memory resource. */
@ -2228,9 +2245,8 @@ static driver_t cgem_driver = {
sizeof(struct cgem_softc), sizeof(struct cgem_softc),
}; };
#ifndef __rtems__
DRIVER_MODULE(cgem, simplebus, cgem_driver, cgem_devclass, NULL, NULL); DRIVER_MODULE(cgem, simplebus, cgem_driver, cgem_devclass, NULL, NULL);
#else /* __rtems__ */ #ifdef __rtems__
DRIVER_MODULE(cgem, nexus, cgem_driver, cgem_devclass, NULL, NULL); DRIVER_MODULE(cgem, nexus, cgem_driver, cgem_devclass, NULL, NULL);
#endif /* __rtems__ */ #endif /* __rtems__ */
DRIVER_MODULE(miibus, cgem, miibus_driver, miibus_devclass, NULL, NULL); DRIVER_MODULE(miibus, cgem, miibus_driver, miibus_devclass, NULL, NULL);