mmc: dw_mmc: move rockchip related code to a separate file

To support HS200 and UHS-1, we need add a big hunk of code,
as shown in the following patches. So a separate file for
rockchip SOCs is suitable.

Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 0 insertions, 57 deletions

diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 1cd02828e5a3..8b6572162ed9 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -26,64 +26,11 @@
 #include "dw_mmc.h"
 #include "dw_mmc-pltfm.h"
 
-#define RK3288_CLKGEN_DIV	2
-
 static void dw_mci_pltfm_prepare_command(struct dw_mci *host, u32 *cmdr)
 {
 	*cmdr |= SDMMC_CMD_USE_HOLD_REG;
 }
 
-static int dw_mci_rk3288_setup_clock(struct dw_mci *host)
-{
-	host->bus_hz /= RK3288_CLKGEN_DIV;
-
-	return 0;
-}
-
-static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
-{
-	int ret;
-	unsigned int cclkin;
-	u32 bus_hz;
-
-	/*
-	 * cclkin: source clock of mmc controller.
-	 * bus_hz: card interface clock generated by CLKGEN.
-	 * bus_hz = cclkin / RK3288_CLKGEN_DIV;
-	 * ios->clock = (div == 0) ? bus_hz : (bus_hz / (2 * div))
-	 *
-	 * Note: div can only be 0 or 1
-	 *       if DDR50 8bit mode(only emmc work in 8bit mode),
-	 *       div must be set 1
-	 */
-	if ((ios->bus_width == MMC_BUS_WIDTH_8) &&
-	    (ios->timing == MMC_TIMING_MMC_DDR52))
-		cclkin = 2 * ios->clock * RK3288_CLKGEN_DIV;
-	else
-		cclkin = ios->clock * RK3288_CLKGEN_DIV;
-
-	ret = clk_set_rate(host->ciu_clk, cclkin);
-	if (ret)
-		dev_warn(host->dev, "failed to set rate %uHz\n", ios->clock);
-
-	bus_hz = clk_get_rate(host->ciu_clk) / RK3288_CLKGEN_DIV;
-	if (bus_hz != host->bus_hz) {
-		host->bus_hz = bus_hz;
-		/* force dw_mci_setup_bus() */
-		host->current_speed = 0;
-	}
-}
-
-static const struct dw_mci_drv_data rk2928_drv_data = {
-	.prepare_command	= dw_mci_pltfm_prepare_command,
-};
-
-static const struct dw_mci_drv_data rk3288_drv_data = {
-	.prepare_command	= dw_mci_pltfm_prepare_command,
-	.set_ios	= dw_mci_rk3288_set_ios,
-	.setup_clock	= dw_mci_rk3288_setup_clock,
-};
-
 static const struct dw_mci_drv_data socfpga_drv_data = {
 	.prepare_command	= dw_mci_pltfm_prepare_command,
 };
@@ -141,10 +88,6 @@ EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
 
 static const struct of_device_id dw_mci_pltfm_match[] = {
 	{ .compatible = "snps,dw-mshc", },
-	{ .compatible = "rockchip,rk2928-dw-mshc",
-		.data = &rk2928_drv_data },
-	{ .compatible = "rockchip,rk3288-dw-mshc",
-		.data = &rk3288_drv_data },
 	{ .compatible = "altr,socfpga-dw-mshc",
 		.data = &socfpga_drv_data },
 	{},