From 39f633320c569a5d975d2d051ff2683db27bd021 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 12 May 2016 12:11:23 -0600 Subject: mmc: tegra: add basic Tegra186 support Tegra186's MMC controller needs to be explicitly identified. Add another compatible value for it. Tegra186 will use an entirely different clock/reset control mechanism to existing chips, and will use standard clock/reset APIs rather than the existing Tegra-specific custom APIs. The driver support for that isn't ready yet, so simply disable all clock/reset usage if compiling for Tegra186. This must happen at compile time rather than run-time since the custom APIs won't even be compiled in on Tegra186. In the long term, the plan would be to convert the existing custom APIs to standard APIs and get rid of the ifdefs completely. The system's main eMMC will work without any clock/reset support, since the firmware will have already initialized the controller in order to load U-Boot. Hence the driver is useful even in this apparently crippled state. Signed-off-by: Stephen Warren Signed-off-by: Tom Warren --- arch/arm/include/asm/arch-tegra/tegra_mmc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/arch-tegra/tegra_mmc.h b/arch/arm/include/asm/arch-tegra/tegra_mmc.h index a20bdaa618..75e56c4ea7 100644 --- a/arch/arm/include/asm/arch-tegra/tegra_mmc.h +++ b/arch/arm/include/asm/arch-tegra/tegra_mmc.h @@ -134,7 +134,9 @@ struct mmc_host { int id; /* device id/number, 0-3 */ int enabled; /* 1 to enable, 0 to disable */ int width; /* Bus Width, 1, 4 or 8 */ +#ifndef CONFIG_TEGRA186 enum periph_id mmc_id; /* Peripheral ID: PERIPH_ID_... */ +#endif struct gpio_desc cd_gpio; /* Change Detect GPIO */ struct gpio_desc pwr_gpio; /* Power GPIO */ struct gpio_desc wp_gpio; /* Write Protect GPIO */ -- cgit v1.2.1