From mboxrd@z Thu Jan 1 00:00:00 1970 From: festevam@gmail.com (Fabio Estevam) Date: Tue, 7 Feb 2012 18:27:53 -0200 Subject: [PATCH] ARM: 3ds_debugboard: Let ethernet be functional again Message-ID: <1328646473-11828-1-git-send-email-festevam@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org commit c7e963f6 (net/smsc911x: Add regulator support) requires that regulator are provided to smsc911x chip. Provide regulator support to 3ds_debugboard so that mx31pdk/mx27pdk boards can have ethernet working again. Tested on a mx31pdk board. Signed-off-by: Fabio Estevam --- Sascha, If you think this patch is OK, then I can submit patches for fixing the other i.MX boards that have smsc911x. arch/arm/configs/imx_v6_v7_defconfig | 1 + arch/arm/plat-mxc/3ds_debugboard.c | 42 ++++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+), 0 deletions(-) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 3a4fb2e..0b437d1 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -126,6 +126,7 @@ CONFIG_WATCHDOG=y CONFIG_IMX2_WDT=y CONFIG_MFD_MC13XXX=y CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MC13892=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y diff --git a/arch/arm/plat-mxc/3ds_debugboard.c b/arch/arm/plat-mxc/3ds_debugboard.c index f0ba072..37c9160 100644 --- a/arch/arm/plat-mxc/3ds_debugboard.c +++ b/arch/arm/plat-mxc/3ds_debugboard.c @@ -16,6 +16,8 @@ #include #include #include +#include +#include #include @@ -61,6 +63,44 @@ static void __iomem *brd_io; +#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE) +static struct regulator_consumer_supply debugboard_smsc_supplies[] = { + REGULATOR_SUPPLY("vdd33a", NULL), + REGULATOR_SUPPLY("vddvario", NULL), +}; + +static struct regulator_init_data debugboard_smsc_init_data = { + .constraints = { + .name = "3V3", + .always_on = 1, + }, + .consumer_supplies = debugboard_smsc_supplies, + .num_consumer_supplies = ARRAY_SIZE(debugboard_smsc_supplies), +}; + +static struct fixed_voltage_config debugboard_smsc_pdata = { + .supply_name = "board-3V3", + .microvolts = 3300000, + .gpio = -EINVAL, + .enabled_at_boot = 1, + .init_data = &debugboard_smsc_init_data, +}; +static struct platform_device debugboard_voltage_regulator = { + .name = "reg-fixed-voltage", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &debugboard_smsc_pdata, + }, +}; +static void __init debugboard_add_regulators(void) +{ + platform_device_register(&debugboard_voltage_regulator); +} +#else +static void __init debugboard_add_regulators(void) {} +#endif + static struct resource smsc911x_resources[] = { { .flags = IORESOURCE_MEM, @@ -187,6 +227,8 @@ int __init mxc_expio_init(u32 base, u32 p_irq) irq_set_irq_type(p_irq, IRQF_TRIGGER_LOW); irq_set_chained_handler(p_irq, mxc_expio_irq_handler); + debugboard_add_regulators(); + /* Register Lan device on the debugboard */ smsc911x_resources[0].start = LAN9217_BASE_ADDR(base); smsc911x_resources[0].end = LAN9217_BASE_ADDR(base) + 0x100 - 1; -- 1.7.1