ARM: mx27: Replace clk_register_clkdev with clock DT lookup
Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index 324130f..c3bdc72 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -62,12 +62,15 @@
compatible = "fsl,imx27-wdt", "fsl,imx21-wdt";
reg = <0x10002000 0x4000>;
interrupts = <27>;
+ clocks = <&clks 0>;
};
uart1: serial@1000a000 {
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1000a000 0x1000>;
interrupts = <20>;
+ clocks = <&clks 81>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -75,6 +78,8 @@
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1000b000 0x1000>;
interrupts = <19>;
+ clocks = <&clks 80>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -82,6 +87,8 @@
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1000c000 0x1000>;
interrupts = <18>;
+ clocks = <&clks 79>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -89,6 +96,8 @@
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1000d000 0x1000>;
interrupts = <17>;
+ clocks = <&clks 78>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -98,6 +107,8 @@
compatible = "fsl,imx27-cspi";
reg = <0x1000e000 0x1000>;
interrupts = <16>;
+ clocks = <&clks 53>, <&clks 0>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -107,6 +118,8 @@
compatible = "fsl,imx27-cspi";
reg = <0x1000f000 0x1000>;
interrupts = <15>;
+ clocks = <&clks 52>, <&clks 0>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -116,6 +129,7 @@
compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
reg = <0x10012000 0x1000>;
interrupts = <12>;
+ clocks = <&clks 40>;
status = "disabled";
};
@@ -185,6 +199,8 @@
compatible = "fsl,imx27-cspi";
reg = <0x10017000 0x1000>;
interrupts = <6>;
+ clocks = <&clks 51>, <&clks 0>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -192,6 +208,8 @@
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1001b000 0x1000>;
interrupts = <49>;
+ clocks = <&clks 77>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -199,6 +217,8 @@
compatible = "fsl,imx27-uart", "fsl,imx21-uart";
reg = <0x1001c000 0x1000>;
interrupts = <48>;
+ clocks = <&clks 78>, <&clks 61>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -208,6 +228,7 @@
compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
reg = <0x1001d000 0x1000>;
interrupts = <1>;
+ clocks = <&clks 39>;
status = "disabled";
};
@@ -224,10 +245,19 @@
compatible = "fsl,imx27-fec";
reg = <0x1002b000 0x4000>;
interrupts = <50>;
+ clocks = <&clks 48>, <&clks 67>, <&clks 0>;
+ clock-names = "ipg", "ahb", "ptp";
status = "disabled";
};
+
+ clks: ccm@10027000{
+ compatible = "fsl,imx27-ccm";
+ reg = <0x10027000 0x1000>;
+ #clock-cells = <1>;
+ };
};
+
nfc: nand@d8000000 {
#address-cells = <1>;
#size-cells = <1>;
@@ -235,6 +265,7 @@
compatible = "fsl,imx27-nand";
reg = <0xd8000000 0x1000>;
interrupts = <29>;
+ clocks = <&clks 54>;
status = "disabled";
};
};
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 8e3b657..faf629e 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -86,10 +86,12 @@
};
static struct clk *clk[clk_max];
+static struct clk_onecell_data clk_data;
int __init mx27_clocks_init(unsigned long fref)
{
int i;
+ struct device_node *np;
clk[dummy] = imx_clk_fixed("dummy", 0);
clk[ckih] = imx_clk_fixed("ckih", fref);
@@ -198,6 +200,13 @@
pr_err("i.MX27 clk %d: register failed with %ld\n",
i, PTR_ERR(clk[i]));
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx27-ccm");
+ if (np) {
+ clk_data.clks = clk;
+ clk_data.clk_num = ARRAY_SIZE(clk);
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+ }
+
clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0");
clk_register_clkdev(clk[per1_gate], "per", "imx21-uart.0");
clk_register_clkdev(clk[uart2_ipg_gate], "ipg", "imx21-uart.1");
diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c
index c915a49..7ee59a7 100644
--- a/arch/arm/mach-imx/imx27-dt.c
+++ b/arch/arm/mach-imx/imx27-dt.c
@@ -18,25 +18,9 @@
#include "common.h"
#include "mx27.h"
-static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
- OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART1_BASE_ADDR, "imx21-uart.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART2_BASE_ADDR, "imx21-uart.1", NULL),
- OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART3_BASE_ADDR, "imx21-uart.2", NULL),
- OF_DEV_AUXDATA("fsl,imx27-fec", MX27_FEC_BASE_ADDR, "imx27-fec.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx21-i2c.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx21-i2c.1", NULL),
- OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI1_BASE_ADDR, "imx27-cspi.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL),
- OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL),
- OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "imx27-nand.0", NULL),
- { /* sentinel */ }
-};
-
static void __init imx27_dt_init(void)
{
- of_platform_populate(NULL, of_default_bus_match_table,
- imx27_auxdata_lookup, NULL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char * const imx27_dt_board_compat[] __initconst = {