diff options
| author | Stefano Babic <sbabic@denx.de> | 2011-09-07 08:45:31 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-10-13 09:06:58 +0200 |
| commit | ea42a0d058428845047206ff895e60520a7ff256 (patch) | |
| tree | 25793af3f4cf89465aa65a62e02f7ee3ea14a3bc /arch/arm/mach-mxs/clock-mx28.c | |
| parent | 976d167615b64e14bc1491ca51d424e2ba9a5e84 (diff) | |
| download | op-kernel-dev-ea42a0d058428845047206ff895e60520a7ff256.zip op-kernel-dev-ea42a0d058428845047206ff895e60520a7ff256.tar.gz | |
ARM: mxs: Add initial support for DENX MX28
Added initial support for DENX M28 module and M28EVK
board. Ethernet(FEC), SDHC, Display are supported.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mxs/clock-mx28.c')
| -rw-r--r-- | arch/arm/mach-mxs/clock-mx28.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 5dcc59d..3122310 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -738,11 +738,17 @@ static int clk_misc_init(void) __raw_writel(BM_CLKCTRL_CPU_INTERRUPT_WAIT, CLKCTRL_BASE_ADDR + HW_CLKCTRL_CPU_SET); - /* Extra fec clock setting */ - reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_ENET); - reg &= ~BM_CLKCTRL_ENET_SLEEP; - reg |= BM_CLKCTRL_ENET_CLK_OUT_EN; - __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_ENET); + /* + * Extra fec clock setting + * The DENX M28 uses an external clock source + * and the clock output must not be enabled + */ + if (!machine_is_m28evk()) { + reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_ENET); + reg &= ~BM_CLKCTRL_ENET_SLEEP; + reg |= BM_CLKCTRL_ENET_CLK_OUT_EN; + __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_ENET); + } /* * 480 MHz seems too high to be ssp clock source directly, |
