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authorLoren HUANG <b02279@freescale.com>2014-04-01 16:58:56 +0800
committerLoren HUANG <b02279@freescale.com>2014-04-01 17:04:54 +0800
commitd503c8268ff7bebddcc6d8041d404f2a5be38591 (patch)
treebaedcbbb49ded0e6dc1b680ca7418338d3ed3a90
parent3bae8eff74ec58df00b4b0f4fad681bc80f7f0c1 (diff)
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ENGR00306443 [MX6SX] Update the gc400t QoS value
Per SoC team recommandation, update the gc400t QoS value to write 2 and Read 8. It can improve gpu performance in most case. 3d fill: 165->172Mpixel/s 2d fill: 190->228Mpixel/s Signed-off-by: Loren HUANG <b02279@freescale.com>
-rw-r--r--arch/arm/cpu/armv7/mx6/soc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 528ed79..3608655 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -415,6 +415,15 @@ int arch_cpu_init(void)
mxs_dma_init();
#endif
+#ifdef CONFIG_MX6SX
+ /* Update the gpu QoS to Write 2, Read 8 */
+ writel(0, QOSC_BASE_ADDR); /* Disable clkgate & soft_rst */
+ writel(0, QOSC_BASE_ADDR+0x60); /* Enable all masters */
+ writel(0, QOSC_BASE_ADDR+0x1400); /* Disable clkgate & soft_rst for gpu */
+ writel(0x0f000222, QOSC_BASE_ADDR+0x14d0); /* Set Write QoS 2 */
+ writel(0x0f020822, QOSC_BASE_ADDR+0x14e0); /* Set Read QoS 8 */
+#endif
+
return 0;
}