From b1b1add38c8f8fc885e294b075fb0b10058c109c Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 10 Jan 2017 13:32:02 +0900 Subject: [PATCH] ARM: socfpga: remove unused CONFIG option and cleanup README.socfpga CONFIG_SOCFPGA_DWMMC_FIFO_DEPTH is defined in the socfpga_common.h, but not referenced at all. Remove. Also, clean-up the README.socfpga. CONFIG_MMC should not be defined in the header since it was moved to Kconfig by commit c27269953b94 ("mmc: complete unfinished move of CONFIG_MMC"). I see no grep hit for the others. Signed-off-by: Masahiro Yamada Reviewed-by: Marek Vasut --- doc/README.socfpga | 26 -------------------------- include/configs/socfpga_common.h | 1 - 2 files changed, 27 deletions(-) diff --git a/doc/README.socfpga b/doc/README.socfpga index cfcbbfe379..92942c940b 100644 --- a/doc/README.socfpga +++ b/doc/README.socfpga @@ -14,12 +14,6 @@ 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 @@ -31,23 +25,3 @@ controller support within SOCFPGA #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. diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h index 31f1338187..dda1159cd7 100644 --- a/include/configs/socfpga_common.h +++ b/include/configs/socfpga_common.h @@ -146,7 +146,6 @@ #define CONFIG_GENERIC_MMC #define CONFIG_DWMMC #define CONFIG_SOCFPGA_DWMMC -#define CONFIG_SOCFPGA_DWMMC_FIFO_DEPTH 1024 /* FIXME */ /* using smaller max blk cnt to avoid flooding the limited stack we have */ #define CONFIG_SYS_MMC_MAX_BLK_COUNT 256 /* FIXME -- SPL only? */ -- 2.39.5