Merge git://www.denx.de/git/u-boot-marvell

[platform/kernel/u-boot.git] / doc / README.socfpga

diff --git a/doc/README.socfpga b/doc/README.socfpga
index cfcbbfe..e717637 100644 (file)
--- a/doc/README.socfpga
+++ b/doc/README.socfpga
@@ -14,40 +14,8 @@ socfpga_dw_mmc
 Here are macro and detailed configuration required to enable DesignWare SDMMC
 controller support within SOCFPGA
 
-#define CONFIG_MMC
--> To enable the SD MMC framework support
-
-#define CONFIG_SDMMC_BASE              (SOCFPGA_SDMMC_ADDRESS)
--> The base address of CSR register for DesignWare SDMMC controller
-
 #define CONFIG_GENERIC_MMC
 -> Enable the generic MMC driver
 
 #define CONFIG_SYS_MMC_MAX_BLK_COUNT   256
 -> Using smaller max blk cnt to avoid flooding the limited stack in OCRAM
-
-#define CONFIG_DWMMC
--> Enable the common DesignWare SDMMC controller framework
-
-#define CONFIG_SOCFPGA_DWMMC
--> Enable the SOCFPGA specific driver for DesignWare SDMMC controller
-
-#define CONFIG_SOCFPGA_DWMMC_FIFO_DEPTH                1024
--> The FIFO depth for SOCFPGA DesignWare SDMMC controller
-
-#define CONFIG_SOCFPGA_DWMMC_DRVSEL    3
--> Phase-shifted clock of sdmmc_clk for controller to drive command and data to
-the card to meet hold time requirements. SD clock is running at 50MHz and
-drvsel is set to shift 135 degrees (3 * 45 degrees). With that, the hold time
-is 135 / 360 * 20ns = 7.5ns.
-
-#define CONFIG_SOCFPGA_DWMMC_SMPSEL    0
--> Phase-shifted clock of sdmmc_clk used to sample the command and data from
-the card
-
-#define CONFIG_SOCFPGA_DWMMC_BUS_WIDTH 4
--> Bus width of data line which either 1, 4 or 8 and based on board routing.
-
-#define CONFIG_SOCFPGA_DWMMC_BUS_HZ    50000000
--> The clock rate to controller. Do note the controller have a wrapper which
-divide the clock from PLL by 4.