On 11/06/2015 10:44 AM, Felipe Balbi wrote:

Hi,

Rob Herring [off-list ref] writes:

quoted

On Tue, Nov 03, 2015 at 03:36:14PM +0530, Vignesh R wrote:

quoted

Add qspi memory mapped region entries for AM43xx based SoCs. Also,
update the binding documents for the controller to document this change.

Signed-off-by: Vignesh R <vigneshr@ti.com>

Acked-by: Rob Herring <robh@kernel.org>

quoted

---
 Documentation/devicetree/bindings/spi/ti_qspi.txt | 5 +++--
 arch/arm/boot/dts/am4372.dtsi                     | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
index f05dd631bef1..05488970060b 100644
--- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
+++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt

@@ -17,9 +17,10 @@ Recommended properties:
 
 Example:
 
+For am4372:
 qspi: qspi at 4b300000 {
-	compatible = "ti,dra7xxx-qspi";
-	reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>;
+	compatible = "ti,am4372-qspi";
+	reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
 	reg-names = "qspi_base", "qspi_mmap";
 	#address-cells = <1>;
 	#size-cells = <0>;

and how does the user for this look like ? Don't you need to give this a
proper 'ranges' binding ?

There are no other users of qspi_mmap region except ti-qspi driver itself:
In probe:
	res_mmap = platform_get_resource_byname(pdev,
			IORESOURCE_MEM, "qspi_mmap");
	qspi->mmap_base = devm_ioremap_resource(&pdev->dev, res_mmap);

and for reading from mmap region:
	memcpy_fromio(buf, qspi->mmap_base + from, len);

-- 
Regards
Vignesh