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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2020-12-04 11:20:33 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-12-07 10:38:33 +0100 |
| commit | d1e7a74b97fdb73936fecd4e07c2d32bbd2fd420 (patch) | |
| tree | 100f25ac079ac02be515e90edb517f4397154b20 /arch/arm/boards/protonic-imx6 | |
| parent | b68c3dddf74e89d88a7f4a8b30b45f547368ec0f (diff) | |
| download | barebox-d1e7a74b97fdb73936fecd4e07c2d32bbd2fd420.tar.gz barebox-d1e7a74b97fdb73936fecd4e07c2d32bbd2fd420.tar.xz | |
ARM i.MX6Q: fix network configuration for Protonic PRTI6G board
By default the iMX6UL is configured to output clock on the ENET1_TX_CLK
pin. Since on the Protonic PRTI6G board the PHY is actual refclock provider, we
should change the clock source to the external clock.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/boards/protonic-imx6')
| -rw-r--r-- | arch/arm/boards/protonic-imx6/board.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/boards/protonic-imx6/board.c b/arch/arm/boards/protonic-imx6/board.c index daae9a527c..a718d54df4 100644 --- a/arch/arm/boards/protonic-imx6/board.c +++ b/arch/arm/boards/protonic-imx6/board.c @@ -11,8 +11,11 @@ #include <i2c/i2c.h> #include <mach/bbu.h> #include <mach/imx6.h> +#include <mfd/imx6q-iomuxc-gpr.h> +#include <mfd/syscon.h> #include <net.h> #include <of_device.h> +#include <regmap.h> #include <sys/mount.h> #include <sys/stat.h> #include <unistd.h> @@ -577,6 +580,27 @@ static int prt_imx6_init_victgo(struct prt_imx6_priv *priv) return prt_imx6_init_kvg_power(priv, PW_MODE_KVG_NEW); } +static int prt_imx6_init_prti6g(struct prt_imx6_priv *priv) +{ + struct regmap *gpr; + + gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr"); + if (!IS_ERR(gpr)) { + int ret; + + /* Configure FEC1 to use 50MHz clock provided by the PHY */ + ret = regmap_update_bits(gpr, IOMUXC_GPR1, + IMX6UL_GPR1_ENET1_CLK_DIR | IMX6UL_GPR1_ENET1_CLK_SEL, + IMX6UL_GPR1_ENET1_CLK_SEL); + if (ret) + dev_err(priv->dev, "regmap error\n"); + } else { + dev_err(priv->dev, "failed to find fsl,imx6ul-iomux-gpr regmap\n"); + } + + return 0; +} + static int prt_imx6_init_kvg_new(struct prt_imx6_priv *priv) { return prt_imx6_init_kvg_power(priv, PW_MODE_KVG_NEW); @@ -923,6 +947,7 @@ static const struct prt_machine_data prt_imx6_cfg_prti6g[] = { .hw_rev = 0, .i2c_addr = 0x51, .i2c_adapter = 0, + .init = prt_imx6_init_prti6g, .flags = PRT_IMX6_BOOTSRC_EMMC, }, { .hw_id = UINT_MAX |