Enable SD slot on Intel Edison platform.
By default firmware doesn't put device on active state. Thus, we have to do this explicitly.
Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com --- arch/x86/dts/edison.dts | 5 ----- board/intel/edison/edison.c | 10 ++++++++++ configs/edison_defconfig | 1 + 3 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/arch/x86/dts/edison.dts b/arch/x86/dts/edison.dts index c0487656d3..df24aa0d26 100644 --- a/arch/x86/dts/edison.dts +++ b/arch/x86/dts/edison.dts @@ -84,15 +84,10 @@ reg = <0xff3fc000 0x1000>; };
-/* - * FIXME: For now U-Boot DM model doesn't allow to power up this controller. - * Enabling it will make U-Boot hang. - * sdcard: mmc@ff3fa000 { compatible = "intel,sdhci-tangier"; reg = <0xff3fa000 0x1000>; }; - */
pmu: power@ff00b000 { compatible = "intel,pmu-mid"; diff --git a/board/intel/edison/edison.c b/board/intel/edison/edison.c index 5faf3c57f2..d80ee3aa8a 100644 --- a/board/intel/edison/edison.c +++ b/board/intel/edison/edison.c @@ -13,9 +13,19 @@ #include <linux/usb/gadget.h>
#include <asm/cache.h> +#include <asm/pmu.h> #include <asm/scu.h> #include <asm/u-boot-x86.h>
+/* List of Intel Tangier LSSs */ +#define PMU_LSS_TANGIER_SDIO0_01 1 + +int board_early_init_r(void) +{ + pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true); + return 0; +} + static struct dwc3_device dwc3_device_data = { .maximum_speed = USB_SPEED_HIGH, .base = CONFIG_SYS_USB_OTG_BASE, diff --git a/configs/edison_defconfig b/configs/edison_defconfig index 0196db65cf..a21806290f 100644 --- a/configs/edison_defconfig +++ b/configs/edison_defconfig @@ -5,6 +5,7 @@ CONFIG_VENDOR_INTEL=y CONFIG_TARGET_EDISON=y CONFIG_SMP=y CONFIG_GENERATE_ACPI_TABLE=y +CONFIG_BOARD_EARLY_INIT_R=y CONFIG_LAST_STAGE_INIT=y CONFIG_HUSH_PARSER=y CONFIG_CMD_CPU=y