The QorIQ eSDHC controller supports two reference clocks. They are platform clock and periperhal clock. The global variable sdhc_clk has already been used for platform clock. This patch is to add another global variable sdhc_per_clk for periperhal clock, which provides higher frequency and is required to be used for SD UHS and eMMC HS200/HS400 speed modes.
Signed-off-by: Yangbo Lu yangbo.lu@nxp.com --- arch/arm/include/asm/global_data.h | 4 ++++ arch/powerpc/include/asm/global_data.h | 1 + 2 files changed, 5 insertions(+)
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h index 1774014..f23b6bf 100644 --- a/arch/arm/include/asm/global_data.h +++ b/arch/arm/include/asm/global_data.h @@ -13,6 +13,10 @@ struct arch_global_data { u32 sdhc_clk; #endif
+#if defined(CONFIG_FSL_ESDHC) + u32 sdhc_per_clk; +#endif + #if defined(CONFIG_U_QE) u32 qe_clk; u32 brg_clk; diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h index b6e4dd6..1620fba 100644 --- a/arch/powerpc/include/asm/global_data.h +++ b/arch/powerpc/include/asm/global_data.h @@ -14,6 +14,7 @@ struct arch_global_data { #if defined(CONFIG_FSL_ESDHC) u32 sdhc_clk; + u32 sdhc_per_clk; #if defined(CONFIG_FSL_ESDHC_ADAPTER_IDENT) u8 sdhc_adapter; #endif