From 5f98d0b5d3038cb3345712bc779efacaba4322f7 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 3 Jan 2014 15:55:57 -0200 Subject: mx6: clock: Pass the frequency as argument of enable_fec_anatop_clock() Provide an argument to enable_fec_anatop_clock() to specify the clock frequency that will be generated. No changes are made to mx6slevk, which uses the default 50MHz fec clock. Signed-off-by: Fabio Estevam Acked-by: Stefano Babic --- arch/arm/cpu/armv7/mx6/clock.c | 8 +++++++- arch/arm/include/asm/arch-mx6/clock.h | 9 ++++++++- 2 files changed, 15 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index f12bba2944..5617a410da 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -323,7 +323,7 @@ static u32 get_mmdc_ch0_clk(void) #endif #ifdef CONFIG_FEC_MXC -int enable_fec_anatop_clock(void) +int enable_fec_anatop_clock(enum enet_freq freq) { u32 reg = 0; s32 timeout = 100000; @@ -331,7 +331,13 @@ int enable_fec_anatop_clock(void) struct anatop_regs __iomem *anatop = (struct anatop_regs __iomem *)ANATOP_BASE_ADDR; + if (freq < ENET_25MHz || freq > ENET_125MHz) + return -EINVAL; + reg = readl(&anatop->pll_enet); + reg &= ~BM_ANADIG_PLL_ENET_DIV_SELECT; + reg |= freq; + if ((reg & BM_ANADIG_PLL_ENET_POWERDOWN) || (!(reg & BM_ANADIG_PLL_ENET_LOCK))) { reg &= ~BM_ANADIG_PLL_ENET_POWERDOWN; diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h index 93f29a780f..e31ba0a955 100644 --- a/arch/arm/include/asm/arch-mx6/clock.h +++ b/arch/arm/include/asm/arch-mx6/clock.h @@ -42,6 +42,13 @@ enum mxc_clock { MXC_I2C_CLK, }; +enum enet_freq { + ENET_25MHz, + ENET_50MHz, + ENET_100MHz, + ENET_125MHz, +}; + u32 imx_get_uartclk(void); u32 imx_get_fecclk(void); unsigned int mxc_get_clock(enum mxc_clock clk); @@ -50,5 +57,5 @@ void enable_usboh3_clk(unsigned char enable); int enable_sata_clock(void); int enable_i2c_clk(unsigned char enable, unsigned i2c_num); void enable_ipu_clock(void); -int enable_fec_anatop_clock(void); +int enable_fec_anatop_clock(enum enet_freq freq); #endif /* __ASM_ARCH_CLOCK_H */ -- cgit From 3a21773129f6ef218f1978d05a1a5d5cf6801ab6 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 3 Jan 2014 15:55:58 -0200 Subject: mx6: Add initial support for the Hummingboard solo SolidRun has designed the Hummingboard board based on mx6q/dl/solo. Add the initial support for the mx6 solo variant. More information about this hardware can be found at: http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware (Carrier-One was the previous name of Hummingboard). Based on the work from Jon Nettleton . Signed-off-by: Jon Nettleton Signed-off-by: Fabio Estevam --- arch/arm/include/asm/arch-mx6/imx-regs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index fb0c4c76eb..7f898654f4 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -245,6 +245,10 @@ struct src { u32 gpr10; }; +/* GPR1 bitfields */ +#define IOMUXC_GPR1_ENET_CLK_SEL_OFFSET 21 +#define IOMUXC_GPR1_ENET_CLK_SEL_MASK (1 << IOMUXC_GPR1_ENET_CLK_SEL_OFFSET) + /* GPR3 bitfields */ #define IOMUXC_GPR3_GPU_DBG_OFFSET 29 #define IOMUXC_GPR3_GPU_DBG_MASK (3<