[PATCH 2/7] 34XX: PM: Workaround to enable autoidle for clocks and plls

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This workaround enables autoidle for interface clocks and plls. Also
automatic control of external oscillator through sys_clkreq is
enabled. I think these should be done by clockfw.

Signed-off-by: Jouni Hogander <jouni.hogander@xxxxxxxxx>
---
 arch/arm/mach-omap2/pm34xx.c |  120 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 120 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index c7493f5..2dccd0b 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -332,6 +332,126 @@ static struct platform_suspend_ops omap_pm_ops = {
 
 static void __init prcm_setup_regs(void)
 {
+	/* XXX Enable interface clock autoidle for all modules. This
+	 * should be done by clockfw */
+	cm_write_mod_reg(
+		OMAP3430ES2_AUTO_MMC3 |
+		OMAP3430ES2_AUTO_ICR |
+		OMAP3430_AUTO_AES2 |
+		OMAP3430_AUTO_SHA12 |
+		OMAP3430_AUTO_DES2 |
+		OMAP3430_AUTO_MMC2 |
+		OMAP3430_AUTO_MMC1 |
+		OMAP3430_AUTO_MSPRO |
+		OMAP3430_AUTO_HDQ |
+		OMAP3430_AUTO_MCSPI4 |
+		OMAP3430_AUTO_MCSPI3 |
+		OMAP3430_AUTO_MCSPI2 |
+		OMAP3430_AUTO_MCSPI1 |
+		OMAP3430_AUTO_I2C3 |
+		OMAP3430_AUTO_I2C2 |
+		OMAP3430_AUTO_I2C1 |
+		OMAP3430_AUTO_UART2 |
+		OMAP3430_AUTO_UART1 |
+		OMAP3430_AUTO_GPT11 |
+		OMAP3430_AUTO_GPT10 |
+		OMAP3430_AUTO_MCBSP5 |
+		OMAP3430_AUTO_MCBSP1 |
+		OMAP3430ES1_AUTO_FAC | /* This is es1 only */
+		OMAP3430_AUTO_MAILBOXES |
+		OMAP3430_AUTO_OMAPCTRL |
+		OMAP3430ES1_AUTO_FSHOSTUSB |
+		OMAP3430_AUTO_HSOTGUSB |
+		OMAP3430ES1_AUTO_D2D | /* This is es1 only */
+		OMAP3430_AUTO_SSI,
+		CORE_MOD, CM_AUTOIDLE1);
+
+	cm_write_mod_reg(
+		OMAP3430_AUTO_PKA |
+		OMAP3430_AUTO_AES1 |
+		OMAP3430_AUTO_RNG |
+		OMAP3430_AUTO_SHA11 |
+		OMAP3430_AUTO_DES1,
+		CORE_MOD, CM_AUTOIDLE2);
+
+	if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0)) {
+		cm_write_mod_reg(
+			OMAP3430ES2_AUTO_USBTLL,
+			CORE_MOD, CM_AUTOIDLE3);
+	}
+
+	cm_write_mod_reg(
+		OMAP3430_AUTO_WDT2 |
+		OMAP3430_AUTO_WDT1 |
+		OMAP3430_AUTO_GPIO1 |
+		OMAP3430_AUTO_32KSYNC |
+		OMAP3430_AUTO_GPT12 |
+		OMAP3430_AUTO_GPT1 ,
+		WKUP_MOD, CM_AUTOIDLE);
+
+	cm_write_mod_reg(
+		OMAP3430_AUTO_DSS,
+		OMAP3430_DSS_MOD,
+		CM_AUTOIDLE);
+
+	cm_write_mod_reg(
+		OMAP3430_AUTO_CAM,
+		OMAP3430_CAM_MOD,
+		CM_AUTOIDLE);
+
+	cm_write_mod_reg(
+		OMAP3430_AUTO_GPIO6 |
+		OMAP3430_AUTO_GPIO5 |
+		OMAP3430_AUTO_GPIO4 |
+		OMAP3430_AUTO_GPIO3 |
+		OMAP3430_AUTO_GPIO2 |
+		OMAP3430_AUTO_WDT3 |
+		OMAP3430_AUTO_UART3 |
+		OMAP3430_AUTO_GPT9 |
+		OMAP3430_AUTO_GPT8 |
+		OMAP3430_AUTO_GPT7 |
+		OMAP3430_AUTO_GPT6 |
+		OMAP3430_AUTO_GPT5 |
+		OMAP3430_AUTO_GPT4 |
+		OMAP3430_AUTO_GPT3 |
+		OMAP3430_AUTO_GPT2 |
+		OMAP3430_AUTO_MCBSP4 |
+		OMAP3430_AUTO_MCBSP3 |
+		OMAP3430_AUTO_MCBSP2,
+		OMAP3430_PER_MOD,
+		CM_AUTOIDLE);
+
+	if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0)) {
+		cm_write_mod_reg(
+			OMAP3430ES2_AUTO_USBHOST,
+			OMAP3430ES2_USBHOST_MOD,
+			CM_AUTOIDLE);
+	}
+
+	/* XXX Set all plls to autoidle. This is needed until autoidle is
+	 * enabled by clockfw */
+	cm_write_mod_reg(1 << OMAP3430_CLKTRCTRL_IVA2_SHIFT,
+			 OMAP3430_IVA2_MOD,
+			 CM_AUTOIDLE2);
+	cm_write_mod_reg(1 << OMAP3430_AUTO_MPU_DPLL_SHIFT,
+			 MPU_MOD,
+			 CM_AUTOIDLE2);
+	cm_write_mod_reg((1 << OMAP3430_AUTO_PERIPH_DPLL_SHIFT) |
+			 (1 << OMAP3430_AUTO_CORE_DPLL_SHIFT),
+			 PLL_MOD,
+			 CM_AUTOIDLE);
+	cm_write_mod_reg(1 << OMAP3430ES2_AUTO_PERIPH2_DPLL_SHIFT,
+			 PLL_MOD,
+			 CM_AUTOIDLE2);
+
+	/* XXX Enable control of expternal oscillator through
+	 * sys_clkreq. I think clockfw should provide means to do this
+	 */
+	prm_rmw_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK,
+			     1 << OMAP_AUTOEXTCLKMODE_SHIFT,
+			     OMAP3430_GR_MOD,
+			     OMAP3_PRM_CLKSRC_CTRL_OFFSET);
+
 	/* setup wakup source */
 	prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1,
 			  WKUP_MOD, PM_WKEN);
-- 
1.5.5

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