sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

ARM i.MX6: Gate clocks to graphics processing units 

This patch gates the clocks to GPU, IPU, and VPU units by default,
significantly reducing the VDDSOC power draw while barebox is running.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Philipp Zabel 2014-02-21 18:37:57 +01:00 committed by Sascha Hauer
parent 1ce7999774
commit 82e69edac7
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/mach-imx/clk-imx6.c
View File

@ -307,12 +307,12 @@ static int imx6_ccm_probe(struct device_d *dev)
clkdev_add_physbase(clks[enfc_podf], MX6_GPMI_BASE_ADDR, NULL);
writel(0xffffffff, ccm_base + CCGR0);
writel(0xffffffff, ccm_base + CCGR1);
writel(0xf0ffffff, ccm_base + CCGR1); /* gate GPU3D, GPU2D */
writel(0xffffffff, ccm_base + CCGR2);
writel(0xffffffff, ccm_base + CCGR3);
writel(0x3fff0000, ccm_base + CCGR3); /* gate OpenVG, LDB, IPU1, IPU2 */
writel(0xffffffff, ccm_base + CCGR4);
writel(0xffffffff, ccm_base + CCGR5);
writel(0xffffffff, ccm_base + CCGR6);
writel(0xffff3fff, ccm_base + CCGR6); /* gate VPU */
writel(0xffffffff, ccm_base + CCGR7);
clk_enable(clks[pll6_enet]);