From c20736f1aba75bd4251e96ef3f487beebbaf41cc Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 28 Nov 2012 15:55:30 -0200 Subject: 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 Tested-by: Markus Pargmann Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx27.dtsi | 31 +++++++++++++++++++++++++++++++ arch/arm/mach-imx/clk-imx27.c | 9 +++++++++ arch/arm/mach-imx/imx27-dt.c | 18 +----------------- 3 files changed, 41 insertions(+), 17 deletions(-) (limited to 'arch/arm') 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 @@ enum mx27_clks { }; 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 @@ int __init mx27_clocks_init(unsigned long fref) 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 = { -- cgit v1.1