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[U-Boot,U-Boot,RESEND,v2,06/10] ARM: AM43XX: Add functions to enable and disable EDMA3 clocks

Message ID 1439798397-1397-7-git-send-email-vigneshr@ti.com
State Accepted
Delegated to: Jagannadha Sutradharudu Teki
Headers show

Commit Message

Raghavendra, Vignesh Aug. 17, 2015, 7:59 a.m. UTC 
Adds functions to enable and disable edma3 clocks which can be invoked
by drivers using edma3 to control the clocks.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
---
 arch/arm/cpu/armv7/am33xx/clock_am43xx.c | 36 ++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
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Patch

diff --git a/arch/arm/cpu/armv7/am33xx/clock_am43xx.c b/arch/arm/cpu/armv7/am33xx/clock_am43xx.c
index b6396942bbff..35c431eb292d 100644
--- a/arch/arm/cpu/armv7/am33xx/clock_am43xx.c
+++ b/arch/arm/cpu/armv7/am33xx/clock_am43xx.c
@@ -135,3 +135,39 @@  void enable_basic_clocks(void)
 	/* For OPP100 the mac clock should be /5. */
 	writel(0x4, &cmdpll->clkselmacclk);
 }
+
+#ifdef CONFIG_TI_EDMA3
+void enable_edma3_clocks(void)
+{
+	u32 *const clk_domains_edma3[] = {
+		0
+	};
+
+	u32 *const clk_modules_explicit_en_edma3[] = {
+		&cmper->tpccclkctrl,
+		&cmper->tptc0clkctrl,
+		0
+	};
+
+	do_enable_clocks(clk_domains_edma3,
+			 clk_modules_explicit_en_edma3,
+			 1);
+}
+
+void disable_edma3_clocks(void)
+{
+	u32 *const clk_domains_edma3[] = {
+		0
+	};
+
+	u32 *const clk_modules_disable_edma3[] = {
+		&cmper->tpccclkctrl,
+		&cmper->tptc0clkctrl,
+		0
+	};
+
+	do_disable_clocks(clk_domains_edma3,
+			  clk_modules_disable_edma3,
+			  1);
+}
+#endif