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authorSuman Tripathi <stripathi@apm.com>2015-05-04 19:09:51 +0530
committerUlf Hansson <ulf.hansson@linaro.org>2015-06-01 09:06:52 +0200
commit308f3f8d8112ea9af6e10564f4012f2d1f94f062 (patch)
tree495bee3c43beaab8d61ac725225e891de9ec3310
parent4d0aa49157a38eb2be8a2ed3bf9900afa796b8d5 (diff)
mmc: sdhci-of-arasan: Add the support for sdhci-arasan4.9a
This patch adds the quirks and compatible string in sdhci-of-arasan.c to support sdhci-arasan4.9a version of controller. Signed-off-by: Suman Tripathi <stripathi@apm.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/mmc/arasan,sdhci.txt3
-rw-r--r--drivers/mmc/host/sdhci-of-arasan.c7
2 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
index 98ee2abbe138..7e9490313d5a 100644
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
@@ -8,7 +8,8 @@ Device Tree Bindings for the Arasan SDHCI Controller
[3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
Required Properties:
- - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a'
+ - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
+ 'arasan,sdhci-4.9a'
- reg: From mmc bindings: Register location and length.
- clocks: From clock bindings: Handles to clock inputs.
- clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 6287d426c96b..21c0c08dfe54 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -20,6 +20,7 @@
*/
#include <linux/module.h>
+#include <linux/of_device.h>
#include "sdhci-pltfm.h"
#define SDHCI_ARASAN_CLK_CTRL_OFFSET 0x2c
@@ -168,6 +169,11 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
goto clk_disable_all;
}
+ if (of_device_is_compatible(pdev->dev.of_node, "arasan,sdhci-4.9a")) {
+ host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
+ host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
+ }
+
sdhci_get_of_property(pdev);
pltfm_host = sdhci_priv(host);
pltfm_host->priv = sdhci_arasan;
@@ -208,6 +214,7 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
static const struct of_device_id sdhci_arasan_of_match[] = {
{ .compatible = "arasan,sdhci-8.9a" },
+ { .compatible = "arasan,sdhci-4.9a" },
{ }
};
MODULE_DEVICE_TABLE(of, sdhci_arasan_of_match);