-disable card clk.
-update the tap value.
-enable card clk.
Bug
1559166
Change-Id: Ib77bfed5d8a8569d458aaf2cd0cd3c8a9e00a60e
Signed-off-by: Naveen Kumar Arepalli <naveenk@nvidia.com>
Reviewed-on: http://git-master/r/559812
(cherry picked from commit
e2c098821a74ef1b5805c6bc5cb177a4fba05338)
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
Reviewed-on: http://git-master/r/721896
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
unsigned int tap_delay)
{
u32 vendor_ctrl;
unsigned int tap_delay)
{
u32 vendor_ctrl;
/* Max tap delay value is 255 */
if (tap_delay > MAX_TAP_VALUES) {
/* Max tap delay value is 255 */
if (tap_delay > MAX_TAP_VALUES) {
+ clk = sdhci_readw(sdhci, SDHCI_CLOCK_CONTROL);
+ clk &= ~SDHCI_CLOCK_CARD_EN;
+ sdhci_writew(sdhci, clk, SDHCI_CLOCK_CONTROL);
+
vendor_ctrl = sdhci_readl(sdhci, SDHCI_VNDR_CLK_CTRL);
vendor_ctrl &= ~(SDHCI_VNDR_CLK_CTRL_TAP_VALUE_MASK <<
SDHCI_VNDR_CLK_CTRL_TAP_VALUE_SHIFT);
vendor_ctrl |= (tap_delay << SDHCI_VNDR_CLK_CTRL_TAP_VALUE_SHIFT);
sdhci_writel(sdhci, vendor_ctrl, SDHCI_VNDR_CLK_CTRL);
vendor_ctrl = sdhci_readl(sdhci, SDHCI_VNDR_CLK_CTRL);
vendor_ctrl &= ~(SDHCI_VNDR_CLK_CTRL_TAP_VALUE_MASK <<
SDHCI_VNDR_CLK_CTRL_TAP_VALUE_SHIFT);
vendor_ctrl |= (tap_delay << SDHCI_VNDR_CLK_CTRL_TAP_VALUE_SHIFT);
sdhci_writel(sdhci, vendor_ctrl, SDHCI_VNDR_CLK_CTRL);
+
+ clk = sdhci_readw(sdhci, SDHCI_CLOCK_CONTROL);
+ clk |= SDHCI_CLOCK_CARD_EN;
+ sdhci_writew(sdhci, clk, SDHCI_CLOCK_CONTROL);
+
}
static void sdhci_tegra_set_trim_delay(struct sdhci_host *sdhci,
}
static void sdhci_tegra_set_trim_delay(struct sdhci_host *sdhci,