diff options
| author | Faiz Abbas <faiz_abbas@ti.com> | 2020-06-19 18:27:57 +0530 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-07-13 12:18:23 +0200 |
| commit | 09db994358ece22ab68190f8be020411bef5d2e2 (patch) | |
| tree | c480c082d47f3ef6bd6c2babed3a2ec1894f5aed /drivers | |
| parent | 23514731f4ab885dc0692ee4113e924b5ab3b492 (diff) | |
mmc: sdhci_am654: Add Support for SR2.0
Add Support for AM65x PG2.0. Use the SoC bus framework to fixup
the driver data and skip do DLL calibration if the revision is 1.0
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Link: https://lore.kernel.org/r/20200619125801.9530-4-faiz_abbas@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci_am654.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c index 85a05344f825..365eb2819dd9 100644 --- a/drivers/mmc/host/sdhci_am654.c +++ b/drivers/mmc/host/sdhci_am654.c @@ -11,6 +11,7 @@ #include <linux/pm_runtime.h> #include <linux/property.h> #include <linux/regmap.h> +#include <linux/sys_soc.h> #include "cqhci.h" #include "sdhci-pltfm.h" @@ -324,12 +325,17 @@ static const struct sdhci_pltfm_data sdhci_am654_pdata = { .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN, }; -static const struct sdhci_am654_driver_data sdhci_am654_drvdata = { +static const struct sdhci_am654_driver_data sdhci_am654_sr1_drvdata = { .pdata = &sdhci_am654_pdata, .flags = IOMUX_PRESENT | FREQSEL_2_BIT | STRBSEL_4_BIT | DLL_PRESENT | DLL_CALIB, }; +static const struct sdhci_am654_driver_data sdhci_am654_drvdata = { + .pdata = &sdhci_am654_pdata, + .flags = IOMUX_PRESENT | FREQSEL_2_BIT | STRBSEL_4_BIT | DLL_PRESENT, +}; + static struct sdhci_ops sdhci_j721e_8bit_ops = { .get_max_clock = sdhci_pltfm_clk_get_max_clock, .get_timeout_clock = sdhci_pltfm_clk_get_max_clock, @@ -376,6 +382,14 @@ static const struct sdhci_am654_driver_data sdhci_j721e_4bit_drvdata = { .flags = IOMUX_PRESENT, }; +static const struct soc_device_attribute sdhci_am654_devices[] = { + { .family = "AM65X", + .revision = "SR1.0", + .data = &sdhci_am654_sr1_drvdata + }, + {/* sentinel */} +}; + static void sdhci_am654_dumpregs(struct mmc_host *mmc) { sdhci_dumpregs(mmc_priv(mmc)); @@ -587,6 +601,7 @@ static const struct of_device_id sdhci_am654_of_match[] = { static int sdhci_am654_probe(struct platform_device *pdev) { const struct sdhci_am654_driver_data *drvdata; + const struct soc_device_attribute *soc; struct sdhci_pltfm_host *pltfm_host; struct sdhci_am654_data *sdhci_am654; const struct of_device_id *match; @@ -598,6 +613,12 @@ static int sdhci_am654_probe(struct platform_device *pdev) match = of_match_node(sdhci_am654_of_match, pdev->dev.of_node); drvdata = match->data; + + /* Update drvdata based on SoC revision */ + soc = soc_device_match(sdhci_am654_devices); + if (soc && soc->data) + drvdata = soc->data; + host = sdhci_pltfm_init(pdev, drvdata->pdata, sizeof(*sdhci_am654)); if (IS_ERR(host)) return PTR_ERR(host); |