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Merge branches 'dmtimer_precleanup_3.1', 'hwmod_core_cleanup_a_3.1', 'combine_common_hwmod_3.1', 'omap4_hwmod_data_cleanup_a_3.1', 'clock_cleanup_a_3.1', 'prcm_cleanup_a_3.1', 'omap_pm_cleanup_3.1' and 'omap_device_cleanup_3.1' into prcm-cleanup-3.1

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This commit is contained in:
Paul Walmsley
2011-07-09 20:24:07 -06:00
parent a7cd4b08d9 34617e2a4d 7e69ed9742 571078aa34 476e5be710 8f0d69dedc
commit c402c0d9df
26 changed files with 2117 additions and 3177 deletions
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223
arch/arm/mach-omap2/omap_hwmod.c
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@@ -2,6 +2,7 @@
* omap_hwmod implementation for OMAP2/3/4
*
* Copyright (C) 2009-2011 Nokia Corporation
* Copyright (C) 2011 Texas Instruments, Inc.
*
* Paul Walmsley, Benoît Cousson, Kevin Hilman
*
@@ -387,11 +388,10 @@ static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
*/
static int _enable_wakeup(struct omap_hwmod *oh, u32 *v)
{
u32 wakeup_mask;
if (!oh->class->sysc ||
!((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) ||
(oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)))
(oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) ||
(oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)))
return -EINVAL;
if (!oh->class->sysc->sysc_fields) {
@@ -399,12 +399,13 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v)
return -EINVAL;
}
wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift);
*v |= wakeup_mask;
if (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)
*v |= 0x1 << oh->class->sysc->sysc_fields->enwkup_shift;
if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
_set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART_WKUP, v);
if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)
_set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
@@ -422,11 +423,10 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v)
*/
static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
{
u32 wakeup_mask;
if (!oh->class->sysc ||
!((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) ||
(oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)))
(oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) ||
(oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)))
return -EINVAL;
if (!oh->class->sysc->sysc_fields) {
@@ -434,12 +434,13 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
return -EINVAL;
}
wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift);
*v &= ~wakeup_mask;
if (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)
*v &= ~(0x1 << oh->class->sysc->sysc_fields->enwkup_shift);
if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
_set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART, v);
if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)
_set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
@@ -677,6 +678,75 @@ static void _disable_optional_clocks(struct omap_hwmod *oh)
}
}
/**
* _count_mpu_irqs - count the number of MPU IRQ lines associated with @oh
* @oh: struct omap_hwmod *oh
*
* Count and return the number of MPU IRQs associated with the hwmod
* @oh. Used to allocate struct resource data. Returns 0 if @oh is
* NULL.
*/
static int _count_mpu_irqs(struct omap_hwmod *oh)
{
struct omap_hwmod_irq_info *ohii;
int i = 0;
if (!oh || !oh->mpu_irqs)
return 0;
do {
ohii = &oh->mpu_irqs[i++];
} while (ohii->irq != -1);
return i;
}
/**
* _count_sdma_reqs - count the number of SDMA request lines associated with @oh
* @oh: struct omap_hwmod *oh
*
* Count and return the number of SDMA request lines associated with
* the hwmod @oh. Used to allocate struct resource data. Returns 0
* if @oh is NULL.
*/
static int _count_sdma_reqs(struct omap_hwmod *oh)
{
struct omap_hwmod_dma_info *ohdi;
int i = 0;
if (!oh || !oh->sdma_reqs)
return 0;
do {
ohdi = &oh->sdma_reqs[i++];
} while (ohdi->dma_req != -1);
return i;
}
/**
* _count_ocp_if_addr_spaces - count the number of address space entries for @oh
* @oh: struct omap_hwmod *oh
*
* Count and return the number of address space ranges associated with
* the hwmod @oh. Used to allocate struct resource data. Returns 0
* if @oh is NULL.
*/
static int _count_ocp_if_addr_spaces(struct omap_hwmod_ocp_if *os)
{
struct omap_hwmod_addr_space *mem;
int i = 0;
if (!os || !os->addr)
return 0;
do {
mem = &os->addr[i++];
} while (mem->pa_start != mem->pa_end);
return i;
}
/**
* _find_mpu_port_index - find hwmod OCP slave port ID intended for MPU use
* @oh: struct omap_hwmod *
@@ -722,8 +792,7 @@ static void __iomem * __init _find_mpu_rt_base(struct omap_hwmod *oh, u8 index)
{
struct omap_hwmod_ocp_if *os;
struct omap_hwmod_addr_space *mem;
int i;
int found = 0;
int i = 0, found = 0;
void __iomem *va_start;
if (!oh || oh->slaves_cnt == 0)
@@ -731,12 +800,14 @@ static void __iomem * __init _find_mpu_rt_base(struct omap_hwmod *oh, u8 index)
os = oh->slaves[index];
for (i = 0, mem = os->addr; i < os->addr_cnt; i++, mem++) {
if (mem->flags & ADDR_TYPE_RT) {
if (!os->addr)
return NULL;
do {
mem = &os->addr[i++];
if (mem->flags & ADDR_TYPE_RT)
found = 1;
break;
}
}
} while (!found && mem->pa_start != mem->pa_end);
if (found) {
va_start = ioremap(mem->pa_start, mem->pa_end - mem->pa_start);
@@ -781,8 +852,16 @@ static void _enable_sysc(struct omap_hwmod *oh)
}
if (sf & SYSC_HAS_MIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
if (oh->flags & HWMOD_SWSUP_MSTANDBY) {
idlemode = HWMOD_IDLEMODE_NO;
} else {
if (sf & SYSC_HAS_ENAWAKEUP)
_enable_wakeup(oh, &v);
if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)
idlemode = HWMOD_IDLEMODE_SMART_WKUP;
else
idlemode = HWMOD_IDLEMODE_SMART;
}
_set_master_standbymode(oh, idlemode, &v);
}
@@ -840,8 +919,16 @@ static void _idle_sysc(struct omap_hwmod *oh)
}
if (sf & SYSC_HAS_MIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
if (oh->flags & HWMOD_SWSUP_MSTANDBY) {
idlemode = HWMOD_IDLEMODE_FORCE;
} else {
if (sf & SYSC_HAS_ENAWAKEUP)
_enable_wakeup(oh, &v);
if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP)
idlemode = HWMOD_IDLEMODE_SMART_WKUP;
else
idlemode = HWMOD_IDLEMODE_SMART;
}
_set_master_standbymode(oh, idlemode, &v);
}
@@ -928,6 +1015,8 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
if (!ret)
oh->_state = _HWMOD_STATE_CLKS_INITED;
else
pr_warning("omap_hwmod: %s: cannot _init_clocks\n", oh->name);
return ret;
}
@@ -1224,6 +1313,8 @@ static int _enable(struct omap_hwmod *oh)
{
int r;
pr_debug("omap_hwmod: %s: enabling\n", oh->name);
if (oh->_state != _HWMOD_STATE_INITIALIZED &&
oh->_state != _HWMOD_STATE_IDLE &&
oh->_state != _HWMOD_STATE_DISABLED) {
@@ -1232,17 +1323,6 @@ static int _enable(struct omap_hwmod *oh)
return -EINVAL;
}
pr_debug("omap_hwmod: %s: enabling\n", oh->name);
/*
* If an IP contains only one HW reset line, then de-assert it in order
* to allow to enable the clocks. Otherwise the PRCM will return
* Intransition status, and the init will failed.
*/
if ((oh->_state == _HWMOD_STATE_INITIALIZED ||
oh->_state == _HWMOD_STATE_DISABLED) && oh->rst_lines_cnt == 1)
_deassert_hardreset(oh, oh->rst_lines[0].name);
/* Mux pins for device runtime if populated */
if (oh->mux && (!oh->mux->enabled ||
((oh->_state == _HWMOD_STATE_IDLE) &&
@@ -1252,20 +1332,31 @@ static int _enable(struct omap_hwmod *oh)
_add_initiator_dep(oh, mpu_oh);
_enable_clocks(oh);
r = _wait_target_ready(oh);
if (!r) {
oh->_state = _HWMOD_STATE_ENABLED;
/*
* If an IP contains only one HW reset line, then de-assert it in order
* to allow the module state transition. Otherwise the PRCM will return
* Intransition status, and the init will failed.
*/
if ((oh->_state == _HWMOD_STATE_INITIALIZED ||
oh->_state == _HWMOD_STATE_DISABLED) && oh->rst_lines_cnt == 1)
_deassert_hardreset(oh, oh->rst_lines[0].name);
/* Access the sysconfig only if the target is ready */
if (oh->class->sysc) {
if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED))
_update_sysc_cache(oh);
_enable_sysc(oh);
}
} else {
_disable_clocks(oh);
r = _wait_target_ready(oh);
if (r) {
pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n",
oh->name, r);
_disable_clocks(oh);
return r;
}
oh->_state = _HWMOD_STATE_ENABLED;
/* Access the sysconfig only if the target is ready */
if (oh->class->sysc) {
if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED))
_update_sysc_cache(oh);
_enable_sysc(oh);
}
return r;
@@ -1281,14 +1372,14 @@ static int _enable(struct omap_hwmod *oh)
*/
static int _idle(struct omap_hwmod *oh)
{
pr_debug("omap_hwmod: %s: idling\n", oh->name);
if (oh->_state != _HWMOD_STATE_ENABLED) {
WARN(1, "omap_hwmod: %s: idle state can only be entered from "
"enabled state\n", oh->name);
return -EINVAL;
}
pr_debug("omap_hwmod: %s: idling\n", oh->name);
if (oh->class->sysc)
_idle_sysc(oh);
_del_initiator_dep(oh, mpu_oh);
@@ -1374,15 +1465,11 @@ static int _shutdown(struct omap_hwmod *oh)
}
}
if (oh->class->sysc)
if (oh->class->sysc) {
if (oh->_state == _HWMOD_STATE_IDLE)
_enable(oh);
_shutdown_sysc(oh);
/*
* If an IP contains only one HW reset line, then assert it
* before disabling the clocks and shutting down the IP.
*/
if (oh->rst_lines_cnt == 1)
_assert_hardreset(oh, oh->rst_lines[0].name);
}
/* clocks and deps are already disabled in idle */
if (oh->_state == _HWMOD_STATE_ENABLED) {
@@ -1392,6 +1479,13 @@ static int _shutdown(struct omap_hwmod *oh)
}
/* XXX Should this code also force-disable the optional clocks? */
/*
* If an IP contains only one HW reset line, then assert it
* after disabling the clocks and before shutting down the IP.
*/
if (oh->rst_lines_cnt == 1)
_assert_hardreset(oh, oh->rst_lines[0].name);
/* Mux pins to safe mode or use populated off mode values */
if (oh->mux)
omap_hwmod_mux(oh->mux, _HWMOD_STATE_DISABLED);
@@ -1685,9 +1779,6 @@ static int __init _populate_mpu_rt_base(struct omap_hwmod *oh, void *data)
return 0;
oh->_mpu_rt_va = _find_mpu_rt_base(oh, oh->_mpu_port_index);
if (!oh->_mpu_rt_va)
pr_warning("omap_hwmod: %s found no _mpu_rt_va for %s\n",
__func__, oh->name);
return 0;
}
@@ -1939,10 +2030,10 @@ int omap_hwmod_count_resources(struct omap_hwmod *oh)
{
int ret, i;
ret = oh->mpu_irqs_cnt + oh->sdma_reqs_cnt;
ret = _count_mpu_irqs(oh) + _count_sdma_reqs(oh);
for (i = 0; i < oh->slaves_cnt; i++)
ret += oh->slaves[i]->addr_cnt;
ret += _count_ocp_if_addr_spaces(oh->slaves[i]);
return ret;
}
@@ -1959,12 +2050,13 @@ int omap_hwmod_count_resources(struct omap_hwmod *oh)
*/
int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
{
int i, j;
int i, j, mpu_irqs_cnt, sdma_reqs_cnt;
int r = 0;
/* For each IRQ, DMA, memory area, fill in array.*/
for (i = 0; i < oh->mpu_irqs_cnt; i++) {
mpu_irqs_cnt = _count_mpu_irqs(oh);
for (i = 0; i < mpu_irqs_cnt; i++) {
(res + r)->name = (oh->mpu_irqs + i)->name;
(res + r)->start = (oh->mpu_irqs + i)->irq;
(res + r)->end = (oh->mpu_irqs + i)->irq;
@@ -1972,7 +2064,8 @@ int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
r++;
}
for (i = 0; i < oh->sdma_reqs_cnt; i++) {
sdma_reqs_cnt = _count_sdma_reqs(oh);
for (i = 0; i < sdma_reqs_cnt; i++) {
(res + r)->name = (oh->sdma_reqs + i)->name;
(res + r)->start = (oh->sdma_reqs + i)->dma_req;
(res + r)->end = (oh->sdma_reqs + i)->dma_req;
@@ -1982,10 +2075,12 @@ int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
for (i = 0; i < oh->slaves_cnt; i++) {
struct omap_hwmod_ocp_if *os;
int addr_cnt;
os = oh->slaves[i];
addr_cnt = _count_ocp_if_addr_spaces(os);
for (j = 0; j < os->addr_cnt; j++) {
for (j = 0; j < addr_cnt; j++) {
(res + r)->name = (os->addr + j)->name;
(res + r)->start = (os->addr + j)->pa_start;
(res + r)->end = (os->addr + j)->pa_end;