[PATCH v2 1/8] mmc: sdhci-pxav2: add initial support for PXA168 V1 controller

[Doug Brown <doug@schmorgal.com>]

Add a new compatible string for the version 1 controller used in the
PXA168, along with necessary quirks. Use a separate ops struct in
preparation for a silicon bug workaround only necessary on V1.

Signed-off-by: Doug Brown <doug@schmorgal.com>
---
 drivers/mmc/host/sdhci-pxav2.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index f18906b5575f..2f9fa0ecbddd 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -101,6 +101,14 @@ static void pxav2_mmc_set_bus_width(struct sdhci_host *host, int width)
 	writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
 }
 
+static const struct sdhci_ops pxav1_sdhci_ops = {
+	.set_clock     = sdhci_set_clock,
+	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
+	.set_bus_width = pxav2_mmc_set_bus_width,
+	.reset         = pxav2_reset,
+	.set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
 static const struct sdhci_ops pxav2_sdhci_ops = {
 	.set_clock     = sdhci_set_clock,
 	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
@@ -114,6 +122,9 @@ static const struct of_device_id sdhci_pxav2_of_match[] = {
 	{
 		.compatible = "mrvl,pxav2-mmc",
 	},
+	{
+		.compatible = "mrvl,pxav1-mmc",
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, sdhci_pxav2_of_match);
@@ -208,7 +219,12 @@ static int sdhci_pxav2_probe(struct platform_device *pdev)
 			host->mmc->pm_caps |= pdata->pm_caps;
 	}
 
-	host->ops = &pxav2_sdhci_ops;
+	if (match && of_device_is_compatible(dev->of_node, "mrvl,pxav1-mmc")) {
+		host->quirks |= SDHCI_QUIRK_NO_BUSY_IRQ | SDHCI_QUIRK_32BIT_DMA_SIZE;
+		host->ops = &pxav1_sdhci_ops;
+	} else {
+		host->ops = &pxav2_sdhci_ops;
+	}
 
 	ret = sdhci_add_host(host);
 	if (ret)
-- 
2.34.1