From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1grHxc-0001gt-IM for barebox@lists.infradead.org; Wed, 06 Feb 2019 07:49:37 +0000 From: Sascha Hauer Date: Wed, 6 Feb 2019 08:49:21 +0100 Message-Id: <20190206074921.11115-9-s.hauer@pengutronix.de> In-Reply-To: <20190206074921.11115-1-s.hauer@pengutronix.de> References: <20190206074921.11115-1-s.hauer@pengutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 8/8] mci: imx-esdhc: Add layerscape support To: Barebox List This adds support for the esdhc controller found on Layerscape SoCs. This means adding the compatible and a driver data to access the controller in bigendian mode. Signed-off-by: Sascha Hauer --- drivers/mci/Kconfig | 2 +- drivers/mci/imx-esdhc.c | 11 +++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig index 954f957bc7..2075151d67 100644 --- a/drivers/mci/Kconfig +++ b/drivers/mci/Kconfig @@ -82,7 +82,7 @@ config MCI_IMX config MCI_IMX_ESDHC bool "i.MX esdhc" - depends on ARCH_IMX + depends on ARCH_IMX || ARCH_LAYERSCAPE help Enable this entry to add support to read and write SD cards on a Freescale i.MX25/35/51 based system. diff --git a/drivers/mci/imx-esdhc.c b/drivers/mci/imx-esdhc.c index 58c262782f..10c981ad5d 100644 --- a/drivers/mci/imx-esdhc.c +++ b/drivers/mci/imx-esdhc.c @@ -69,6 +69,8 @@ #define ESDHC_FLAG_HAVE_CAP1 BIT(6) /* Need to access registers in bigendian mode */ #define ESDHC_FLAG_BIGENDIAN BIT(7) +/* Enable cache snooping */ +#define ESDHC_FLAG_CACHE_SNOOPING BIT(8) /* * The IP has errata ERR004536 @@ -612,6 +614,10 @@ static int esdhc_init(struct mci_host *mci, struct device_d *dev) /* RSTA doesn't reset MMC_BOOT register, so manually reset it */ esdhc_write32(host, SDHCI_MMC_BOOT, 0); + /* Enable cache snooping */ + if (host->socdata->flags & ESDHC_FLAG_CACHE_SNOOPING) + esdhc_write32(host, 0x40c, 0x40); + /* Set the initial clock speed */ set_sysctl(mci, 400000); @@ -747,6 +753,10 @@ static struct esdhc_soc_data usdhc_imx6sx_data = { .clkidx = "per", }; +static struct esdhc_soc_data esdhc_ls_data = { + .flags = ESDHC_FLAG_MULTIBLK_NO_INT | ESDHC_FLAG_BIGENDIAN, +}; + static __maybe_unused struct of_device_id fsl_esdhc_compatible[] = { { .compatible = "fsl,imx25-esdhc", .data = &esdhc_imx25_data }, { .compatible = "fsl,imx50-esdhc", .data = &esdhc_imx53_data }, @@ -756,6 +766,7 @@ static __maybe_unused struct of_device_id fsl_esdhc_compatible[] = { { .compatible = "fsl,imx6sl-usdhc", .data = &usdhc_imx6sl_data }, { .compatible = "fsl,imx6sx-usdhc", .data = &usdhc_imx6sx_data }, { .compatible = "fsl,imx8mq-usdhc", .data = &usdhc_imx6sx_data }, + { .compatible = "fsl,ls1046a-esdhc",.data = &esdhc_ls_data }, { /* sentinel */ } }; -- 2.20.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox