X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fmmc%2Fsh_mmcif.c;h=f92cf00cf4477f6cd275cffbc411efd9fe41efe9;hb=fcd78fa604d994477fd209b9faab4a974b103250;hp=ed83a14c2defe1a28d291539aa695920149393ad;hpb=0f507779ca00d90cdd4bcc8252630370339b7ea6;p=oweals%2Fu-boot.git

diff --git a/drivers/mmc/sh_mmcif.c b/drivers/mmc/sh_mmcif.c
index ed83a14c2d..f92cf00cf4 100644
--- a/drivers/mmc/sh_mmcif.c
+++ b/drivers/mmc/sh_mmcif.c
@@ -103,20 +103,18 @@ static int mmcif_wait_interrupt_flag(struct sh_mmcif_host *host)
 
 static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
 {
-	int i;
-
 	sh_mmcif_bitclr(CLK_ENABLE, &host->regs->ce_clk_ctrl);
 	sh_mmcif_bitclr(CLK_CLEAR, &host->regs->ce_clk_ctrl);
 
 	if (!clk)
 		return;
-	if (clk == CLKDEV_EMMC_DATA) {
+
+	if (clk == CLKDEV_EMMC_DATA)
 		sh_mmcif_bitset(CLK_PCLK, &host->regs->ce_clk_ctrl);
-	} else {
-		for (i = 1; (unsigned int)host->clk / (1 << i) >= clk; i++)
-			;
-		sh_mmcif_bitset((i - 1) << 16, &host->regs->ce_clk_ctrl);
-	}
+	else
+		sh_mmcif_bitset((fls(DIV_ROUND_UP(host->clk,
+						  clk) - 1) - 1) << 16,
+				&host->regs->ce_clk_ctrl);
 	sh_mmcif_bitset(CLK_ENABLE, &host->regs->ce_clk_ctrl);
 }
 
@@ -579,10 +577,8 @@ static struct mmc_config sh_mmcif_cfg = {
 	.name		= DRIVER_NAME,
 	.ops		= &sh_mmcif_ops,
 	.host_caps	= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT |
-			  MMC_MODE_8BIT | MMC_MODE_HC,
+			  MMC_MODE_8BIT,
 	.voltages	= MMC_VDD_32_33 | MMC_VDD_33_34,
-	.f_min		= CLKDEV_MMC_INIT,
-	.f_max		= CLKDEV_EMMC_DATA,
 	.b_max		= CONFIG_SYS_MMC_MAX_BLK_COUNT,
 };
 
@@ -599,6 +595,9 @@ int mmcif_mmc_init(void)
 	host->regs = (struct sh_mmcif_regs *)CONFIG_SH_MMCIF_ADDR;
 	host->clk = CONFIG_SH_MMCIF_CLK;
 
+	sh_mmcif_cfg.f_min = MMC_CLK_DIV_MIN(host->clk);
+	sh_mmcif_cfg.f_max = MMC_CLK_DIV_MAX(host->clk);
+
 	mmc = mmc_create(&sh_mmcif_cfg, host);
 	if (mmc == NULL) {
 		free(host);