Date: Thu, 3 Aug 2023 16:12:02 GMT From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: b109946d7564 - main - intelspi: Release LPSS reset on Sunrise Point controllers. Message-ID: <202308031612.373GC2Uu006074@gitrepo.freebsd.org>
next in thread | raw e-mail | index | archive | help
The branch main has been updated by wulf: URL: https://cgit.FreeBSD.org/src/commit/?id=b109946d7564afde6f3d3b3a78f428c8da14e17c commit b109946d7564afde6f3d3b3a78f428c8da14e17c Author: Vladimir Kondratyev <wulf@FreeBSD.org> AuthorDate: 2023-08-03 16:10:50 +0000 Commit: Vladimir Kondratyev <wulf@FreeBSD.org> CommitDate: 2023-08-03 16:10:50 +0000 intelspi: Release LPSS reset on Sunrise Point controllers. MacBookPro 14.1 SPI controller requires that to start functioning. MFC after: 1 week Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D41245 --- sys/dev/intel/spi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sys/dev/intel/spi.c b/sys/dev/intel/spi.c index 42caed0c1c02..6dd063511e26 100644 --- a/sys/dev/intel/spi.c +++ b/sys/dev/intel/spi.c @@ -109,6 +109,10 @@ #define SPI_CS_CTRL_HW_MODE (1 << 0) #define SPI_CS_CTRL_CS_HIGH (1 << 1) +#define INTELSPI_RESETS 0x204 +#define INTELSPI_RESET_HOST (1 << 0) | (1 << 1) +#define INTELSPI_RESET_DMA (1 << 2) + /* Same order as intelspi_vers */ static const struct intelspi_info { uint32_t reg_lpss_base; @@ -477,6 +481,11 @@ intelspi_attach(device_t dev) goto error; } + /* Release LPSS reset */ + if (sc->sc_vers == SPI_SUNRISEPOINT) + INTELSPI_WRITE(sc, INTELSPI_RESETS, + (INTELSPI_RESET_HOST | INTELSPI_RESET_DMA)); + sc->sc_irq_res = bus_alloc_resource_any(sc->sc_dev, SYS_RES_IRQ, &sc->sc_irq_rid, RF_ACTIVE | RF_SHAREABLE); if (sc->sc_irq_res == NULL) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202308031612.373GC2Uu006074>