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Diffstat (limited to 'arch/arm/mach-omap2/prm44xx.c')
-rw-r--r--arch/arm/mach-omap2/prm44xx.c90
1 files changed, 79 insertions, 11 deletions
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index a7f6ea27180..0958d070d3d 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/io.h>
+#include <linux/of_irq.h>
#include "soc.h"
@@ -32,7 +33,6 @@
/* Static data */
static const struct omap_prcm_irq omap4_prcm_irqs[] = {
- OMAP_PRCM_IRQ("wkup", 0, 0),
OMAP_PRCM_IRQ("io", 9, 1),
};
@@ -154,21 +154,36 @@ void omap4_prm_vp_clear_txdone(u8 vp_id)
u32 omap4_prm_vcvp_read(u8 offset)
{
+ s32 inst = omap4_prmst_get_prm_dev_inst();
+
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return 0;
+
return omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
- OMAP4430_PRM_DEVICE_INST, offset);
+ inst, offset);
}
void omap4_prm_vcvp_write(u32 val, u8 offset)
{
+ s32 inst = omap4_prmst_get_prm_dev_inst();
+
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return;
+
omap4_prminst_write_inst_reg(val, OMAP4430_PRM_PARTITION,
- OMAP4430_PRM_DEVICE_INST, offset);
+ inst, offset);
}
u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset)
{
+ s32 inst = omap4_prmst_get_prm_dev_inst();
+
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return 0;
+
return omap4_prminst_rmw_inst_reg_bits(mask, bits,
OMAP4430_PRM_PARTITION,
- OMAP4430_PRM_DEVICE_INST,
+ inst,
offset);
}
@@ -275,14 +290,18 @@ void omap44xx_prm_restore_irqen(u32 *saved_mask)
void omap44xx_prm_reconfigure_io_chain(void)
{
int i = 0;
+ s32 inst = omap4_prmst_get_prm_dev_inst();
+
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return;
/* Trigger WUCLKIN enable */
omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK,
OMAP4430_WUCLK_CTRL_MASK,
- OMAP4430_PRM_DEVICE_INST,
+ inst,
OMAP4_PRM_IO_PMCTRL_OFFSET);
omap_test_timeout(
- (((omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+ (((omap4_prm_read_inst_reg(inst,
OMAP4_PRM_IO_PMCTRL_OFFSET) &
OMAP4430_WUCLK_STATUS_MASK) >>
OMAP4430_WUCLK_STATUS_SHIFT) == 1),
@@ -292,10 +311,10 @@ void omap44xx_prm_reconfigure_io_chain(void)
/* Trigger WUCLKIN disable */
omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK, 0x0,
- OMAP4430_PRM_DEVICE_INST,
+ inst,
OMAP4_PRM_IO_PMCTRL_OFFSET);
omap_test_timeout(
- (((omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+ (((omap4_prm_read_inst_reg(inst,
OMAP4_PRM_IO_PMCTRL_OFFSET) &
OMAP4430_WUCLK_STATUS_MASK) >>
OMAP4430_WUCLK_STATUS_SHIFT) == 0),
@@ -316,9 +335,14 @@ void omap44xx_prm_reconfigure_io_chain(void)
*/
static void __init omap44xx_prm_enable_io_wakeup(void)
{
+ s32 inst = omap4_prmst_get_prm_dev_inst();
+
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return;
+
omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK,
OMAP4430_GLOBAL_WUEN_MASK,
- OMAP4430_PRM_DEVICE_INST,
+ inst,
OMAP4_PRM_IO_PMCTRL_OFFSET);
}
@@ -333,8 +357,13 @@ static u32 omap44xx_prm_read_reset_sources(void)
struct prm_reset_src_map *p;
u32 r = 0;
u32 v;
+ s32 inst = omap4_prmst_get_prm_dev_inst();
- v = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+ if (inst == PRM_INSTANCE_UNKNOWN)
+ return 0;
+
+
+ v = omap4_prm_read_inst_reg(inst,
OMAP4_RM_RSTST);
p = omap44xx_prm_reset_src_map;
@@ -664,17 +693,56 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
int __init omap44xx_prm_init(void)
{
- if (cpu_is_omap44xx())
+ if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
prm_features |= PRM_HAS_IO_WAKEUP;
return prm_register(&omap44xx_prm_ll_data);
}
+static struct of_device_id omap_prm_dt_match_table[] = {
+ { .compatible = "ti,omap4-prm" },
+ { .compatible = "ti,omap5-prm" },
+ { .compatible = "ti,dra7-prm" },
+ { }
+};
+
static int omap44xx_prm_late_init(void)
{
+ struct device_node *np;
+ int irq_num;
+
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
+ /* OMAP4+ is DT only now */
+ if (!of_have_populated_dt())
+ return 0;
+
+ np = of_find_matching_node(NULL, omap_prm_dt_match_table);
+
+ if (!np) {
+ /* Default loaded up with OMAP4 values */
+ if (!cpu_is_omap44xx())
+ return 0;
+ } else {
+ irq_num = of_irq_get(np, 0);
+ /*
+ * Already have OMAP4 IRQ num. For all other platforms, we need
+ * IRQ numbers from DT
+ */
+ if (irq_num < 0 && !cpu_is_omap44xx()) {
+ if (irq_num == -EPROBE_DEFER)
+ return irq_num;
+
+ /* Have nothing to do */
+ return 0;
+ }
+
+ /* Once OMAP4 DT is filled as well */
+ if (irq_num >= 0)
+ omap4_prcm_irq_setup.irq = irq_num;
+ }
+
omap44xx_prm_enable_io_wakeup();
return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);