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charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhibbits X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 603a29b9b3126763c934afbed64fc43bf539469b Auto-Submitted: auto-generated Date: Thu, 16 Apr 2026 22:39:55 +0000 Message-Id: <69e1653b.347bc.204c98dd@gitrepo.freebsd.org> The branch main has been updated by jhibbits: URL: https://cgit.FreeBSD.org/src/commit/?id=603a29b9b3126763c934afbed64fc43bf539469b commit 603a29b9b3126763c934afbed64fc43bf539469b Author: Justin Hibbits AuthorDate: 2026-04-16 22:36:54 +0000 Commit: Justin Hibbits CommitDate: 2026-04-16 22:36:54 +0000 mpc85xx: Support timebase sync on T-series devices Freescale T-series QorIQ devices use a different register to twiddle the timebase enable. --- sys/powerpc/mpc85xx/platform_mpc85xx.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/sys/powerpc/mpc85xx/platform_mpc85xx.c b/sys/powerpc/mpc85xx/platform_mpc85xx.c index cc2ad829eb05..6781fdffa5a9 100644 --- a/sys/powerpc/mpc85xx/platform_mpc85xx.c +++ b/sys/powerpc/mpc85xx/platform_mpc85xx.c @@ -581,9 +581,19 @@ dummy_freeze(device_t dev, bool freeze) /* QorIQ Run control/power management timebase management. */ -#define RCPM_CTBENR 0x00000084 +#define RCPM_CTBENR_1_0 0x00000084 +#define RCPM_CTBENR_2_0 0x000001a0 + struct mpc85xx_rcpm_softc { struct resource *sc_mem; + bus_addr_t sc_ctbenr; + uint32_t sc_saved_tbenr; +}; + +struct ofw_compat_data compats[] = { + { "fsl,qoriq-rcpm-1.0", RCPM_CTBENR_1_0 }, + { "fsl,qoriq-rcpm-2.0", RCPM_CTBENR_2_0 }, + { NULL, 0 } }; static void @@ -593,16 +603,17 @@ mpc85xx_rcpm_freeze_timebase(device_t dev, bool freeze) sc = device_get_softc(dev); - if (freeze) - bus_write_4(sc->sc_mem, RCPM_CTBENR, 0); - else - bus_write_4(sc->sc_mem, RCPM_CTBENR, (1 << maxcpu) - 1); + if (freeze) { + sc->sc_saved_tbenr = bus_read_4(sc->sc_mem, sc->sc_ctbenr); + bus_write_4(sc->sc_mem, sc->sc_ctbenr, 0); + } else + bus_write_4(sc->sc_mem, sc->sc_ctbenr, sc->sc_saved_tbenr); } static int mpc85xx_rcpm_probe(device_t dev) { - if (!ofw_bus_is_compatible(dev, "fsl,qoriq-rcpm-1.0")) + if (ofw_bus_search_compatible(dev, compats)->ocd_str == NULL) return (ENXIO); device_set_desc(dev, "QorIQ Run control and power management"); @@ -622,6 +633,7 @@ mpc85xx_rcpm_attach(device_t dev) rid = 0; sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE | RF_SHAREABLE); + sc->sc_ctbenr = ofw_bus_search_compatible(dev, compats)->ocd_data; return (0); }