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| author | Andrew Lunn <andrew@lunn.ch> | 2012-07-20 13:51:55 +0200 |
|---|---|---|
| committer | Andrew Lunn <andrew@lunn.ch> | 2012-07-27 16:48:29 +0200 |
| commit | e91cac0a7746b2ce9d4134098678e3cc8cbf032d (patch) | |
| tree | 35ac0f4b38fbe3034faa82c9c19909bac47112ff | |
| parent | 763721205eaa14f097694a3b65f87b74ba6dfe40 (diff) | |
| download | linux-e91cac0a7746b2ce9d4134098678e3cc8cbf032d.tar.gz linux-e91cac0a7746b2ce9d4134098678e3cc8cbf032d.tar.bz2 linux-e91cac0a7746b2ce9d4134098678e3cc8cbf032d.zip | |
ARM: Orion: Add arch support needed for I2C via DT.
The MV64XXX I2C driver needs a clock in order to calculate the baud
rate factors. So add an clk to the clk tree. Also add the base DT
properties for kirkwood devices.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Conflicts:
arch/arm/mach-kirkwood/common.c
| -rw-r--r-- | arch/arm/boot/dts/kirkwood.dtsi | 10 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/board-dt.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/common.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-orion/common.c | 1 |
4 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index 3aaad7d147de..3df24cd03c07 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -82,5 +82,15 @@ /* set partition map and/or chip-delay in board dts */ status = "disabled"; }; + + i2c@11000 { + compatible = "marvell,mv64xxx-i2c"; + reg = <0x11000 0x20>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <29>; + clock-frequency = <100000>; + status = "disabled"; + }; }; }; diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index 8f8da5d9a8dd..24c8fdd174d1 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -28,6 +28,8 @@ static struct of_device_id kirkwood_dt_match_table[] __initdata = { struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), + OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", + NULL), {}, }; diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c9201539ffbd..c4b64adcbfce 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -17,6 +17,7 @@ #include <linux/dma-mapping.h> #include <linux/clk-provider.h> #include <linux/spinlock.h> +#include <linux/mv643xx_i2c.h> #include <net/dsa.h> #include <asm/page.h> #include <asm/timex.h> @@ -276,6 +277,7 @@ void __init kirkwood_clk_init(void) orion_clkdev_add("0", "pcie", pex0); orion_clkdev_add("1", "pcie", pex1); orion_clkdev_add(NULL, "kirkwood-i2s", audio); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", runit); /* Marvell says runit is used by SPI, UART, NAND, TWSI, ..., * so should never be gated. diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c index c1793786aea9..d245a87dc014 100644 --- a/arch/arm/plat-orion/common.c +++ b/arch/arm/plat-orion/common.c @@ -47,6 +47,7 @@ void __init orion_clkdev_init(struct clk *tclk) orion_clkdev_add(NULL, MV643XX_ETH_NAME ".2", tclk); orion_clkdev_add(NULL, MV643XX_ETH_NAME ".3", tclk); orion_clkdev_add(NULL, "orion_wdt", tclk); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", tclk); } /* Fill in the resources structure and link it into the platform |