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76 lines
2.3 KiB
76 lines
2.3 KiB
11 years ago
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Now that we have DT bindings to specify which devices should not
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be reset and idled during init, make hwmod extract the information
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(and store them in internal flags) from Device tree.
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Signed-off-by: Rajendra Nayak <rnayak@ti.com>
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---
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arch/arm/mach-omap2/omap_hwmod.c | 23 ++++++++++++++++-------
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1 file changed, 16 insertions(+), 7 deletions(-)
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diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
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index d9ee0ff..b55923a 100644
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--- a/arch/arm/mach-omap2/omap_hwmod.c
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+++ b/arch/arm/mach-omap2/omap_hwmod.c
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@@ -2363,11 +2363,11 @@ static struct device_node *of_dev_hwmod_lookup(struct device_node *np,
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* are part of the device's address space can be ioremapped properly.
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* No return value.
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*/
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-static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
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+static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
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+ struct device_node *np)
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{
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struct omap_hwmod_addr_space *mem;
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void __iomem *va_start = NULL;
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- struct device_node *np;
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if (!oh)
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return;
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@@ -2383,12 +2383,10 @@ static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
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oh->name);
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/* Extract the IO space from device tree blob */
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- if (!of_have_populated_dt())
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+ if (!np)
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return;
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- np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh);
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- if (np)
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- va_start = of_iomap(np, oh->mpu_rt_idx);
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+ va_start = of_iomap(np, oh->mpu_rt_idx);
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} else {
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va_start = ioremap(mem->pa_start, mem->pa_end - mem->pa_start);
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}
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@@ -2420,12 +2418,16 @@ static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
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static int __init _init(struct omap_hwmod *oh, void *data)
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{
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int r;
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+ struct device_node *np = NULL;
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if (oh->_state != _HWMOD_STATE_REGISTERED)
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return 0;
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+ if (of_have_populated_dt())
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+ np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh);
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+
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if (oh->class->sysc)
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- _init_mpu_rt_base(oh, NULL);
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+ _init_mpu_rt_base(oh, NULL, np);
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r = _init_clocks(oh, NULL);
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if (r < 0) {
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@@ -2433,6 +2435,13 @@ static int __init _init(struct omap_hwmod *oh, void *data)
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return -EINVAL;
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}
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+ if (np) {
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+ if (of_find_property(np, "ti,no-reset-on-init", NULL))
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+ oh->flags |= HWMOD_INIT_NO_RESET;
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+ if (of_find_property(np, "ti,no-idle-on-init", NULL))
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+ oh->flags |= HWMOD_INIT_NO_IDLE;
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+ }
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+
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oh->_state = _HWMOD_STATE_INITIALIZED;
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return 0;
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