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| author | Lucas Stach <l.stach@pengutronix.de> | 2015-11-06 17:25:38 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-11-09 07:32:27 +0100 |
| commit | b4b3706960db929a1ec348eacf1dfd11e6af17ec (patch) | |
| tree | e7a718a6e67aa4b483e03f47fc74a73326265886 /arch | |
| parent | 4641ece1466a3691be5bc7302c89ffa2d4f37de8 (diff) | |
| download | barebox-b4b3706960db929a1ec348eacf1dfd11e6af17ec.tar.gz barebox-b4b3706960db929a1ec348eacf1dfd11e6af17ec.tar.xz | |
ARM: microsom: make ETH work on production modules
The pre-production modules had an external crystal to generate the PHY
reference clock. Production modules rely on the i.MX6 to output the
correct clock.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boards/solidrun-microsom/board.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/boards/solidrun-microsom/board.c b/arch/arm/boards/solidrun-microsom/board.c index 280653f5b8..28a60b9e8c 100644 --- a/arch/arm/boards/solidrun-microsom/board.c +++ b/arch/arm/boards/solidrun-microsom/board.c @@ -25,6 +25,7 @@ #include <mach/imx6-regs.h> #include <mach/imx6.h> #include <mfd/imx6q-iomuxc-gpr.h> +#include <linux/clk.h> #include <linux/sizes.h> #include <linux/phy.h> @@ -61,13 +62,26 @@ static int ar8035_phy_fixup(struct phy_device *dev) return 0; } +static void microsom_eth_init(void) +{ + void __iomem *iomux = (void *)MX6_IOMUXC_BASE_ADDR; + u32 val; + + clk_set_rate(clk_lookup("enet_ref"), 25000000); + + val = readl(iomux + IOMUXC_GPR1); + val |= IMX6Q_GPR1_ENET_CLK_SEL_ANATOP; + writel(val, iomux + IOMUXC_GPR1); + + phy_register_fixup_for_uid(0x004dd072, 0xffffffef, ar8035_phy_fixup); +} static int hummingboard_device_init(void) { if (!of_machine_is_compatible("solidrun,hummingboard/dl") && !of_machine_is_compatible("solidrun,hummingboard/q")) return 0; - phy_register_fixup_for_uid(0x004dd072, 0xffffffef, ar8035_phy_fixup); + microsom_eth_init(); /* enable USB VBUS */ gpio_direction_output(IMX_GPIO_NR(3, 22), 1); |