[PATCH 3/3] Added support for On Chip OTP in i.MX23/28

[Christoph G. Baumann]

From: "Christoph G. Baumann" <cb at sgoc.de>

Signed-off-by: Christoph G. Baumann <cb at sgoc.de>
---
 arch/arm/boot/dts/imx28.dtsi |    1 -
 drivers/clk/mxs/clk-imx23.c  |    2 ++
 drivers/clk/mxs/clk-imx28.c  |    1 +
 drivers/misc/Kconfig         |   14 ++++++++++++++
 drivers/misc/Makefile        |    1 +
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 600f7cb..e9de86b 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -711,7 +711,6 @@
 			ocotp at 8002c000 {
 				compatible = "fsl,ocotp";
 				reg = <0x8002c000 0x2000>;
-				status = "disabled";
 			};
 
 			axi-ahb at 8002e000 {
diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c
index f6a7487..ec76d00 100644
--- a/drivers/clk/mxs/clk-imx23.c
+++ b/drivers/clk/mxs/clk-imx23.c
@@ -168,6 +168,8 @@ int __init mx23_clocks_init(void)
 	clk_data.clk_num = ARRAY_SIZE(clks);
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
+	clk_register_clkdev(clks[hbus], NULL, "hbus");
+
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
 
diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index 4faf0af..792fcaf 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -247,6 +247,7 @@ int __init mx28_clocks_init(void)
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
 	clk_register_clkdev(clks[enet_out], NULL, "enet_out");
+	clk_register_clkdev(clks[hbus], NULL, "hbus");
 
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index c002d86..b44ef48 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -527,6 +527,20 @@ config SRAM
 	  the genalloc API. It is supposed to be used for small on-chip SRAM
 	  areas found on many SoCs.
 
+config FSL_OTP
+	tristate "Freescale On-Chip OTP Memory Support"
+	depends on SOC_IMX23 || SOC_IMX28
+	default n
+	help
+		If you say Y here, you will get support for a SysFS interface for
+		the One Time Programmable memory pages that are stored on the
+		iMX23/28 processor.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called fsl_otp.
+
+	  If unsure, it is safe to say N.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index c235d5b..e622e01 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -53,3 +53,4 @@ obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
 obj-$(CONFIG_SRAM)		+= sram.o
+obj-$(CONFIG_FSL_OTP)           += fsl_otp.o
-- 
1.7.9.5