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authorPaul Walmsley <paul@pwsan.com>2011-03-10 22:43:05 -0700
committerPaul Walmsley <paul@pwsan.com>2011-03-10 22:43:05 -0700
commit2d403fe03070b541cc93cfa915f6e6c592cf231c (patch)
tree530e0bf3a99a9aa93e0113a916fb7a547605ad2e /arch/arm/mach-omap2/omap_hwmod.c
parent21ace5452ce3327f0d11f85b0c33dfcd0d20fdb2 (diff)
parentcc1226e7635011c7dd1e786770ed51ee751800f2 (diff)
Merge remote branch 'remotes/origin/hwmod_a_2.6.39' into tmp-integration-2.6.39-20110310-024
Conflicts: arch/arm/mach-omap2/omap_hwmod_2430_data.c arch/arm/mach-omap2/omap_hwmod_3xxx_data.c arch/arm/plat-omap/include/plat/omap_hwmod.h
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c79
1 files changed, 45 insertions, 34 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index e39772beaedd..4c8329e4e6e1 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -370,7 +370,7 @@ static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
}
autoidle_shift = oh->class->sysc->sysc_fields->autoidle_shift;
- autoidle_mask = (0x3 << autoidle_shift);
+ autoidle_mask = (0x1 << autoidle_shift);
*v &= ~autoidle_mask;
*v |= autoidle << autoidle_shift;
@@ -929,7 +929,7 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
if (!ret)
oh->_state = _HWMOD_STATE_CLKS_INITED;
- return 0;
+ return ret;
}
/**
@@ -975,25 +975,29 @@ static int _wait_target_ready(struct omap_hwmod *oh)
}
/**
- * _lookup_hardreset - return the register bit shift for this hwmod/reset line
+ * _lookup_hardreset - fill register bit info for this hwmod/reset line
* @oh: struct omap_hwmod *
* @name: name of the reset line in the context of this hwmod
+ * @ohri: struct omap_hwmod_rst_info * that this function will fill in
*
* Return the bit position of the reset line that match the
* input name. Return -ENOENT if not found.
*/
-static u8 _lookup_hardreset(struct omap_hwmod *oh, const char *name)
+static u8 _lookup_hardreset(struct omap_hwmod *oh, const char *name,
+ struct omap_hwmod_rst_info *ohri)
{
int i;
for (i = 0; i < oh->rst_lines_cnt; i++) {
const char *rst_line = oh->rst_lines[i].name;
if (!strcmp(rst_line, name)) {
- u8 shift = oh->rst_lines[i].rst_shift;
- pr_debug("omap_hwmod: %s: _lookup_hardreset: %s: %d\n",
- oh->name, rst_line, shift);
+ ohri->rst_shift = oh->rst_lines[i].rst_shift;
+ ohri->st_shift = oh->rst_lines[i].st_shift;
+ pr_debug("omap_hwmod: %s: %s: %s: rst %d st %d\n",
+ oh->name, __func__, rst_line, ohri->rst_shift,
+ ohri->st_shift);
- return shift;
+ return 0;
}
}
@@ -1012,21 +1016,22 @@ static u8 _lookup_hardreset(struct omap_hwmod *oh, const char *name)
*/
static int _assert_hardreset(struct omap_hwmod *oh, const char *name)
{
- u8 shift;
+ struct omap_hwmod_rst_info ohri;
+ u8 ret;
if (!oh)
return -EINVAL;
- shift = _lookup_hardreset(oh, name);
- if (IS_ERR_VALUE(shift))
- return shift;
+ ret = _lookup_hardreset(oh, name, &ohri);
+ if (IS_ERR_VALUE(ret))
+ return ret;
if (cpu_is_omap24xx() || cpu_is_omap34xx())
return omap2_prm_assert_hardreset(oh->prcm.omap2.module_offs,
- shift);
+ ohri.rst_shift);
else if (cpu_is_omap44xx())
return omap4_prm_assert_hardreset(oh->prcm.omap4.rstctrl_reg,
- shift);
+ ohri.rst_shift);
else
return -EINVAL;
}
@@ -1043,29 +1048,34 @@ static int _assert_hardreset(struct omap_hwmod *oh, const char *name)
*/
static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
{
- u8 shift;
- int r;
+ struct omap_hwmod_rst_info ohri;
+ int ret;
if (!oh)
return -EINVAL;
- shift = _lookup_hardreset(oh, name);
- if (IS_ERR_VALUE(shift))
- return shift;
+ ret = _lookup_hardreset(oh, name, &ohri);
+ if (IS_ERR_VALUE(ret))
+ return ret;
- if (cpu_is_omap24xx() || cpu_is_omap34xx())
- r = omap2_prm_deassert_hardreset(oh->prcm.omap2.module_offs,
- shift);
- else if (cpu_is_omap44xx())
- r = omap4_prm_deassert_hardreset(oh->prcm.omap4.rstctrl_reg,
- shift);
- else
+ if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
+ ret = omap2_prm_deassert_hardreset(oh->prcm.omap2.module_offs,
+ ohri.rst_shift,
+ ohri.st_shift);
+ } else if (cpu_is_omap44xx()) {
+ if (ohri.st_shift)
+ pr_err("omap_hwmod: %s: %s: hwmod data error: OMAP4 does not support st_shift\n",
+ oh->name, name);
+ ret = omap4_prm_deassert_hardreset(oh->prcm.omap4.rstctrl_reg,
+ ohri.rst_shift);
+ } else {
return -EINVAL;
+ }
- if (r == -EBUSY)
+ if (ret == -EBUSY)
pr_warning("omap_hwmod: %s: failed to hardreset\n", oh->name);
- return r;
+ return ret;
}
/**
@@ -1078,21 +1088,22 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
*/
static int _read_hardreset(struct omap_hwmod *oh, const char *name)
{
- u8 shift;
+ struct omap_hwmod_rst_info ohri;
+ u8 ret;
if (!oh)
return -EINVAL;
- shift = _lookup_hardreset(oh, name);
- if (IS_ERR_VALUE(shift))
- return shift;
+ ret = _lookup_hardreset(oh, name, &ohri);
+ if (IS_ERR_VALUE(ret))
+ return ret;
if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
return omap2_prm_is_hardreset_asserted(oh->prcm.omap2.module_offs,
- shift);
+ ohri.st_shift);
} else if (cpu_is_omap44xx()) {
return omap4_prm_is_hardreset_asserted(oh->prcm.omap4.rstctrl_reg,
- shift);
+ ohri.rst_shift);
} else {
return -EINVAL;
}