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OMAP3: PM: Add D2D clocks and auto-idle setup to PRCM init 

Add D2D clocks (modem_fck, sad2d_ick, mad2d_ick) to clock framework
and ensure that auto-idle bits are set for these clocks during PRCM
init.

Also add omap3_d2d_idle() function called durint PRCM setup which
ensures D2D pins are MUX'd correctly to enable retention for
standalone (no-modem) devices.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Kevin Hilman 2009-04-28 15:27:44 -07:00
parent ba87a9beae
commit 8111b221a2
5 changed files with 75 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-omap2/clock34xx.c
View File

@ -129,6 +129,9 @@ static struct omap_clk omap34xx_clks[] = {
CLK(NULL, "sgx_fck", &sgx_fck, CK_3430ES2),
CLK(NULL, "sgx_ick", &sgx_ick, CK_3430ES2),
CLK(NULL, "d2d_26m_fck", &d2d_26m_fck, CK_3430ES1),
CLK(NULL, "modem_fck", &modem_fck, CK_343X),
CLK(NULL, "sad2d_ick", &sad2d_ick, CK_343X),
CLK(NULL, "mad2d_ick", &mad2d_ick, CK_343X),
CLK(NULL, "gpt10_fck", &gpt10_fck, CK_343X),
CLK(NULL, "gpt11_fck", &gpt11_fck, CK_343X),
CLK(NULL, "cpefuse_fck", &cpefuse_fck, CK_3430ES2),

33
arch/arm/mach-omap2/clock34xx.h
View File

@ -1230,6 +1230,37 @@ static struct clk d2d_26m_fck = {
.recalc = &followparent_recalc,
};
static struct clk modem_fck = {
.name = "modem_fck",
.ops = &clkops_omap2_dflt_wait,
.parent = &sys_ck,
.init = &omap2_init_clk_clkdm,
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
.enable_bit = OMAP3430_EN_MODEM_SHIFT,
.clkdm_name = "d2d_clkdm",
.recalc = &followparent_recalc,
};
static struct clk sad2d_ick = {
.name = "sad2d_ick",
.ops = &clkops_omap2_dflt_wait,
.parent = &l3_ick,
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1),
.enable_bit = OMAP3430_EN_SAD2D_SHIFT,
.clkdm_name = "d2d_clkdm",
.recalc = &followparent_recalc,
};
static struct clk mad2d_ick = {
.name = "mad2d_ick",
.ops = &clkops_omap2_dflt_wait,
.parent = &l3_ick,
.enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN3),
.enable_bit = OMAP3430_EN_MAD2D_SHIFT,
.clkdm_name = "d2d_clkdm",
.recalc = &followparent_recalc,
};
static const struct clksel omap343x_gpt_clksel[] = {
{ .parent = &omap_32k_fck, .rates = gpt_32k_rates },
{ .parent = &sys_ck, .rates = gpt_sys_rates },
@ -1947,8 +1978,6 @@ static struct clk usb_l4_ick = {
.recalc = &omap2_clksel_recalc,
};
/* XXX MDM_INTC_ICK, SAD2D_ICK ?? */
/* SECURITY_L4_ICK2 based clocks */
static struct clk security_l4_ick2 = {

14
arch/arm/mach-omap2/cm-regbits-34xx.h
View File

@ -145,6 +145,8 @@
#define OMAP3430_CLKACTIVITY_MPU_MASK (1 << 0)
/* CM_FCLKEN1_CORE specific bits */
#define OMAP3430_EN_MODEM (1 << 31)
#define OMAP3430_EN_MODEM_SHIFT 31
/* CM_ICLKEN1_CORE specific bits */
#define OMAP3430_EN_ICR (1 << 29)
@ -161,6 +163,8 @@
#define OMAP3430_EN_MAILBOXES_SHIFT 7
#define OMAP3430_EN_OMAPCTRL (1 << 6)
#define OMAP3430_EN_OMAPCTRL_SHIFT 6
#define OMAP3430_EN_SAD2D (1 << 3)
#define OMAP3430_EN_SAD2D_SHIFT 3
#define OMAP3430_EN_SDRC (1 << 1)
#define OMAP3430_EN_SDRC_SHIFT 1
@ -176,6 +180,10 @@
#define OMAP3430_EN_DES1 (1 << 0)
#define OMAP3430_EN_DES1_SHIFT 0
/* CM_ICLKEN3_CORE */
#define OMAP3430_EN_MAD2D_SHIFT 3
#define OMAP3430_EN_MAD2D (1 << 3)
/* CM_FCLKEN3_CORE specific bits */
#define OMAP3430ES2_EN_TS_SHIFT 1
#define OMAP3430ES2_EN_TS_MASK (1 << 1)
@ -231,6 +239,8 @@
#define OMAP3430ES2_ST_CPEFUSE_MASK (1 << 0)
/* CM_AUTOIDLE1_CORE */
#define OMAP3430_AUTO_MODEM (1 << 31)
#define OMAP3430_AUTO_MODEM_SHIFT 31
#define OMAP3430ES2_AUTO_MMC3 (1 << 30)
#define OMAP3430ES2_AUTO_MMC3_SHIFT 30
#define OMAP3430ES2_AUTO_ICR (1 << 29)
@ -287,6 +297,8 @@
#define OMAP3430_AUTO_HSOTGUSB_SHIFT 4
#define OMAP3430ES1_AUTO_D2D (1 << 3)
#define OMAP3430ES1_AUTO_D2D_SHIFT 3
#define OMAP3430_AUTO_SAD2D (1 << 3)
#define OMAP3430_AUTO_SAD2D_SHIFT 3
#define OMAP3430_AUTO_SSI (1 << 0)
#define OMAP3430_AUTO_SSI_SHIFT 0
@ -308,6 +320,8 @@
#define OMAP3430ES2_AUTO_USBTLL (1 << 2)
#define OMAP3430ES2_AUTO_USBTLL_SHIFT 2
#define OMAP3430ES2_AUTO_USBTLL_MASK (1 << 2)
#define OMAP3430_AUTO_MAD2D_SHIFT 3
#define OMAP3430_AUTO_MAD2D (1 << 3)
/* CM_CLKSEL_CORE */
#define OMAP3430_CLKSEL_SSI_SHIFT 8

25
arch/arm/mach-omap2/pm34xx.c
View File

@ -415,14 +415,32 @@ static void __init omap3_iva_idle(void)
OMAP3430_IVA2_MOD, RM_RSTCTRL);
}
static void __init prcm_setup_regs(void)
static void __init omap3_d2d_idle(void)
{
u16 mask, padconf;
/* In a stand alone OMAP3430 where there is not a stacked
* modem for the D2D Idle Ack and D2D MStandby must be pulled
* high. S CONTROL_PADCONF_SAD2D_IDLEACK and
* CONTROL_PADCONF_SAD2D_MSTDBY to have a pull up. */
mask = (1 << 4) | (1 << 3); /* pull-up, enabled */
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_IDLEACK);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
/* reset modem */
prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON |
OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST,
CORE_MOD, RM_RSTCTRL);
prm_write_mod_reg(0, CORE_MOD, RM_RSTCTRL);
}
static void __init prcm_setup_regs(void)
{
/* XXX Reset all wkdeps. This should be done when initializing
* powerdomains */
prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
@ -442,6 +460,7 @@ static void __init prcm_setup_regs(void)
* Note that in the long run this should be done by clockfw
*/
cm_write_mod_reg(
OMAP3430_AUTO_MODEM |
OMAP3430ES2_AUTO_MMC3 |
OMAP3430ES2_AUTO_ICR |
OMAP3430_AUTO_AES2 |
@ -469,7 +488,7 @@ static void __init prcm_setup_regs(void)
OMAP3430_AUTO_OMAPCTRL |
OMAP3430ES1_AUTO_FSHOSTUSB |
OMAP3430_AUTO_HSOTGUSB |
OMAP3430ES1_AUTO_D2D | /* This is es1 only */
OMAP3430_AUTO_SAD2D |
OMAP3430_AUTO_SSI,
CORE_MOD, CM_AUTOIDLE1);
@ -483,6 +502,7 @@ static void __init prcm_setup_regs(void)
if (omap_rev() > OMAP3430_REV_ES1_0) {
cm_write_mod_reg(
OMAP3430_AUTO_MAD2D |
OMAP3430ES2_AUTO_USBTLL,
CORE_MOD, CM_AUTOIDLE3);
}
@ -576,6 +596,7 @@ static void __init prcm_setup_regs(void)
OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
omap3_iva_idle();
omap3_d2d_idle();
}
static int __init pwrdms_setup(struct powerdomain *pwrdm)

4
arch/arm/plat-omap/include/mach/control.h
View File

@ -144,6 +144,10 @@
#define OMAP343X_CONTROL_PBIAS_LITE (OMAP2_CONTROL_GENERAL + 0x02b0)
#define OMAP343X_CONTROL_TEMP_SENSOR (OMAP2_CONTROL_GENERAL + 0x02b4)
/* 34xx D2D idle-related pins, handled by PM core */
#define OMAP3_PADCONF_SAD2D_MSTANDBY 0x250
#define OMAP3_PADCONF_SAD2D_IDLEACK 0x254
/*
* REVISIT: This list of registers is not comprehensive - there are more
* that should be added.