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msm: clock-8960: Enable hardware clock gating on 8930

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Dynamic hardware clock gating is supported for most multimedia
ahb and axi clocks on 8930. This patch enables this feature for
these clocks.

Change-Id: I64ba96a7d14576e2fc7f0c0963deb00f2fc02cf7
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
This commit is contained in:
Tianyi Gou
2012-06-18 12:04:11 -07:00
committed by Stephen Boyd
parent 062e25047a
commit bd190fe655
1 changed files with 17 additions and 15 deletions
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32
arch/arm/mach-msm/clock-8960.c
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@@ -6077,18 +6077,19 @@ static void __init reg_init(void)
*/
/*
* Initialize MM AHB registers: Enable the FPB clock and disable HW
* gating on non-8960 for all clocks. Also set VFE_AHB's
* gating on 8627 for all clocks. Also set VFE_AHB's
* FORCE_CORE_ON bit to prevent its memory from being collapsed when
* the clock is halted. The sleep and wake-up delays are set to safe
* values.
*/
if (cpu_is_msm8960() || cpu_is_apq8064()) {
rmwreg(0x44000000, AHB_EN_REG, 0x6C000103);
writel_relaxed(0x3C7097F9, AHB_EN2_REG);
} else {
if (cpu_is_msm8627()) {
rmwreg(0x00000003, AHB_EN_REG, 0x6C000103);
writel_relaxed(0x000007F9, AHB_EN2_REG);
} else {
rmwreg(0x44000000, AHB_EN_REG, 0x6C000103);
writel_relaxed(0x3C7097F9, AHB_EN2_REG);
}
if (cpu_is_apq8064())
rmwreg(0x00000001, AHB_EN3_REG, 0x00000001);
@@ -6100,25 +6101,26 @@ static void __init reg_init(void)
* support it. Also set FORCE_CORE_ON bits, and any sleep and wake-up
* delays to safe values. */
if ((cpu_is_msm8960() &&
SOCINFO_VERSION_MAJOR(socinfo_get_version()) >= 3) ||
cpu_is_apq8064()) {
rmwreg(0x0003AFF9, MAXI_EN_REG, 0x0803FFFF);
rmwreg(0x3A27FCFF, MAXI_EN2_REG, 0x3A3FFFFF);
rmwreg(0x0027FCFF, MAXI_EN4_REG, 0x017FFFFF);
} else {
SOCINFO_VERSION_MAJOR(socinfo_get_version()) < 3) ||
cpu_is_msm8627()) {
rmwreg(0x000007F9, MAXI_EN_REG, 0x0803FFFF);
rmwreg(0x3027FCFF, MAXI_EN2_REG, 0x3A3FFFFF);
rmwreg(0x0027FCFF, MAXI_EN4_REG, 0x017FFFFF);
} else {
rmwreg(0x0003AFF9, MAXI_EN_REG, 0x0803FFFF);
rmwreg(0x3A27FCFF, MAXI_EN2_REG, 0x3A3FFFFF);
}
rmwreg(0x0027FCFF, MAXI_EN3_REG, 0x003FFFFF);
rmwreg(0x0027FCFF, MAXI_EN4_REG, 0x017FFFFF);
if (cpu_is_apq8064())
rmwreg(0x019FECFF, MAXI_EN5_REG, 0x01FFEFFF);
if (cpu_is_msm8930())
rmwreg(0x000004FF, MAXI_EN5_REG, 0x00000FFF);
if (cpu_is_msm8960() || cpu_is_apq8064())
rmwreg(0x00003C38, SAXI_EN_REG, 0x00003FFF);
else
if (cpu_is_msm8627())
rmwreg(0x000003C7, SAXI_EN_REG, 0x00003FFF);
else
rmwreg(0x00003C38, SAXI_EN_REG, 0x00003FFF);
/* Enable IMEM's clk_on signal */
imem_reg = ioremap(0x04b00040, 4);