[PATCH 07/12] arm: omap3: am35x: Set proper powerdomain states

Mark A. Greer
2012-04-11T19:48:15Z

From: "Mark A. Greer" <mgreer@animalcreek.com>

The am35x family of SoCs only support PWRSTS_ON
and PWRSTS_INACTIVE states so create a new set
of powerdomain structures that ensure that only
the ON and INACTIVE states are entered.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
---
arch/arm/mach-omap2/powerdomain.h | 1 +
arch/arm/mach-omap2/powerdomains3xxx_data.c | 134 ++++++++++++++++++++++++---
2 files changed, 123 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h
index 0d72a8a..561cb27 100644
--- a/arch/arm/mach-omap2/powerdomain.h
+++ b/arch/arm/mach-omap2/powerdomain.h
@@ -43,6 +43,7 @@
#define PWRSTS_OFF_ON (PWRSTS_OFF | PWRSTS_ON)
#define PWRSTS_OFF_RET (PWRSTS_OFF | PWRSTS_RET)
#define PWRSTS_RET_ON (PWRSTS_RET | PWRSTS_ON)
+#define PWRSTS_INACTIVE_ON (PWRSTS_INACTIVE | PWRSTS_ON)
#define PWRSTS_OFF_RET_ON (PWRSTS_OFF_RET | PWRSTS_ON)

diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
index b7ea468..fae6dea 100644
--- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
@@ -71,6 +71,22 @@ static struct powerdomain mpu_3xxx_pwrdm = {
.voltdm = { .name = "mpu_iva" },
};

+static struct powerdomain mpu_am35x_pwrdm = {
+ .name = "mpu_pwrdm",
+ .prcm_offs = MPU_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .flags = PWRDM_HAS_MPU_QUIRK,
+ .banks = 1,
+ .pwrsts_mem_ret = {
+ [0] = PWRSTS_INACTIVE,
+ },
+ .pwrsts_mem_on = {
+ [0] = PWRSTS_INACTIVE_ON,
+ },
+ .voltdm = { .name = "mpu_iva" },
+};
+
/*
* The USBTLL Save-and-Restore mechanism is broken on
* 3430s up to ES3.0 and 3630ES1.0. Hence this feature
@@ -120,6 +136,23 @@ static struct powerdomain core_3xxx_es3_1_pwrdm = {
.voltdm = { .name = "core" },
};

+static struct powerdomain core_am35x_pwrdm = {
+ .name = "core_pwrdm",
+ .prcm_offs = CORE_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .banks = 2,
+ .pwrsts_mem_ret = {
+ [0] = PWRSTS_INACTIVE, /* MEM1RETSTATE */
+ [1] = PWRSTS_INACTIVE, /* MEM2RETSTATE */
+ },
+ .pwrsts_mem_on = {
+ [0] = PWRSTS_INACTIVE_ON, /* MEM1ONSTATE */
+ [1] = PWRSTS_INACTIVE_ON, /* MEM2ONSTATE */
+ },
+ .voltdm = { .name = "core" },
+};
+
static struct powerdomain dss_pwrdm = {
.name = "dss_pwrdm",
.prcm_offs = OMAP3430_DSS_MOD,
@@ -135,6 +168,21 @@ static struct powerdomain dss_pwrdm = {
.voltdm = { .name = "core" },
};

+static struct powerdomain dss_am35x_pwrdm = {
+ .name = "dss_pwrdm",
+ .prcm_offs = OMAP3430_DSS_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .banks = 1,
+ .pwrsts_mem_ret = {
+ [0] = PWRSTS_INACTIVE, /* MEMRETSTATE */
+ },
+ .pwrsts_mem_on = {
+ [0] = PWRSTS_ON, /* MEMONSTATE */
+ },
+ .voltdm = { .name = "core" },
+};
+
/*
* Although the 34XX TRM Rev K Table 4-371 notes that retention is a
* possible SGX powerstate, the SGX device itself does not support
@@ -156,6 +204,21 @@ static struct powerdomain sgx_pwrdm = {
.voltdm = { .name = "core" },
};

+static struct powerdomain sgx_am35x_pwrdm = {
+ .name = "sgx_pwrdm",
+ .prcm_offs = OMAP3430ES2_SGX_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .banks = 1,
+ .pwrsts_mem_ret = {
+ [0] = PWRSTS_INACTIVE, /* MEMRETSTATE */
+ },
+ .pwrsts_mem_on = {
+ [0] = PWRSTS_ON, /* MEMONSTATE */
+ },
+ .voltdm = { .name = "core" },
+};
+
static struct powerdomain cam_pwrdm = {
.name = "cam_pwrdm",
.prcm_offs = OMAP3430_CAM_MOD,
@@ -186,6 +249,21 @@ static struct powerdomain per_pwrdm = {
.voltdm = { .name = "core" },
};

+static struct powerdomain per_am35x_pwrdm = {
+ .name = "per_pwrdm",
+ .prcm_offs = OMAP3430_PER_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .banks = 1,
+ .pwrsts_mem_ret = {
+ [0] = PWRSTS_INACTIVE, /* MEMRETSTATE */
+ },
+ .pwrsts_mem_on = {
+ [0] = PWRSTS_ON, /* MEMONSTATE */
+ },
+ .voltdm = { .name = "core" },
+};
+
static struct powerdomain emu_pwrdm = {
.name = "emu_pwrdm",
.prcm_offs = OMAP3430_EMU_MOD,
@@ -200,6 +278,14 @@ static struct powerdomain neon_pwrdm = {
.voltdm = { .name = "mpu_iva" },
};

+static struct powerdomain neon_am35x_pwrdm = {
+ .name = "neon_pwrdm",
+ .prcm_offs = OMAP3430_NEON_MOD,
+ .pwrsts = PWRSTS_INACTIVE_ON,
+ .pwrsts_logic_ret = PWRSTS_INACTIVE,
+ .voltdm = { .name = "mpu_iva" },
+};
+
static struct powerdomain usbhost_pwrdm = {
.name = "usbhost_pwrdm",
.prcm_offs = OMAP3430ES2_USBHOST_MOD,
@@ -293,6 +379,22 @@ static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
NULL
};

+static struct powerdomain *powerdomains_am35x[] __initdata = {
+ &wkup_omap2_pwrdm,
+ &mpu_am35x_pwrdm,
+ &neon_am35x_pwrdm,
+ &core_am35x_pwrdm,
+ &sgx_am35x_pwrdm,
+ &dss_am35x_pwrdm,
+ &per_am35x_pwrdm,
+ &emu_pwrdm,
+ &dpll1_pwrdm,
+ &dpll3_pwrdm,
+ &dpll4_pwrdm,
+ &dpll5_pwrdm,
+ NULL
+};
+
void __init omap3xxx_powerdomains_init(void)
{
unsigned int rev;
@@ -301,21 +403,29 @@ void __init omap3xxx_powerdomains_init(void)
return;

pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
- pwrdm_register_pwrdms(powerdomains_omap3430_common);

rev = omap_rev();

- if (rev == OMAP3430_REV_ES1_0)
- pwrdm_register_pwrdms(powerdomains_omap3430es1);
- else if (rev == OMAP3430_REV_ES2_0 || rev == OMAP3430_REV_ES2_1 ||
- rev == OMAP3430_REV_ES3_0 || rev == OMAP3630_REV_ES1_0)
- pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
- else if (rev == OMAP3430_REV_ES3_1 || rev == OMAP3430_REV_ES3_1_2 ||
- rev == OMAP3517_REV_ES1_0 || rev == OMAP3517_REV_ES1_1 ||
- rev == OMAP3630_REV_ES1_1 || rev == OMAP3630_REV_ES1_2)
- pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
- else
- WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
+ if (rev == OMAP3517_REV_ES1_0 || rev == OMAP3517_REV_ES1_1)
+ pwrdm_register_pwrdms(powerdomains_am35x);
+ else {
+ pwrdm_register_pwrdms(powerdomains_omap3430_common);
+
+ if (rev == OMAP3430_REV_ES1_0)
+ pwrdm_register_pwrdms(powerdomains_omap3430es1);
+ else if (rev == OMAP3430_REV_ES2_0 ||
+ rev == OMAP3430_REV_ES2_1 ||
+ rev == OMAP3430_REV_ES3_0 ||
+ rev == OMAP3630_REV_ES1_0)
+ pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
+ else if (rev == OMAP3430_REV_ES3_1 ||
+ rev == OMAP3430_REV_ES3_1_2 ||
+ rev == OMAP3630_REV_ES1_1 ||
+ rev == OMAP3630_REV_ES1_2)
+ pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
+ else
+ WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
+ }

pwrdm_complete_init();
}
--
1.7.9.4