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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/arm/mach-omap2/prm44xx.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/arm/mach-omap2/prm44xx.c')
-rw-r--r--kernel/arch/arm/mach-omap2/prm44xx.c61
1 files changed, 37 insertions, 24 deletions
diff --git a/kernel/arch/arm/mach-omap2/prm44xx.c b/kernel/arch/arm/mach-omap2/prm44xx.c
index 4541700f7..30768003f 100644
--- a/kernel/arch/arm/mach-omap2/prm44xx.c
+++ b/kernel/arch/arm/mach-omap2/prm44xx.c
@@ -18,13 +18,14 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/of_irq.h>
-
+#include <linux/of.h>
#include "soc.h"
#include "iomap.h"
#include "common.h"
#include "vp.h"
#include "prm44xx.h"
+#include "prcm43xx.h"
#include "prm-regbits-44xx.h"
#include "prcm44xx.h"
#include "prminst44xx.h"
@@ -45,6 +46,7 @@ static const struct omap_prcm_irq omap4_prcm_irqs[] = {
static struct omap_prcm_irq_setup omap4_prcm_irq_setup = {
.ack = OMAP4_PRM_IRQSTATUS_MPU_OFFSET,
.mask = OMAP4_PRM_IRQENABLE_MPU_OFFSET,
+ .pm_ctrl = OMAP4_PRM_IO_PMCTRL_OFFSET,
.nr_regs = 2,
.irqs = omap4_prcm_irqs,
.nr_irqs = ARRAY_SIZE(omap4_prcm_irqs),
@@ -216,11 +218,11 @@ static inline u32 _read_pending_irq_reg(u16 irqen_offs, u16 irqst_offs)
*/
static void omap44xx_prm_read_pending_irqs(unsigned long *events)
{
- events[0] = _read_pending_irq_reg(OMAP4_PRM_IRQENABLE_MPU_OFFSET,
- OMAP4_PRM_IRQSTATUS_MPU_OFFSET);
+ int i;
- events[1] = _read_pending_irq_reg(OMAP4_PRM_IRQENABLE_MPU_2_OFFSET,
- OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET);
+ for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++)
+ events[i] = _read_pending_irq_reg(omap4_prcm_irq_setup.mask +
+ i * 4, omap4_prcm_irq_setup.ack + i * 4);
}
/**
@@ -250,17 +252,17 @@ static void omap44xx_prm_ocp_barrier(void)
*/
static void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
{
- saved_mask[0] =
- omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_OFFSET);
- saved_mask[1] =
- omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
+ int i;
+ u16 reg;
+
+ for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++) {
+ reg = omap4_prcm_irq_setup.mask + i * 4;
- omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_OFFSET);
- omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
+ saved_mask[i] =
+ omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
+ reg);
+ omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST, reg);
+ }
/* OCP barrier */
omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
@@ -279,10 +281,12 @@ static void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
*/
static void omap44xx_prm_restore_irqen(u32 *saved_mask)
{
- omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_OFFSET);
- omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_OCP_SOCKET_INST,
- OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
+ int i;
+
+ for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++)
+ omap4_prm_write_inst_reg(saved_mask[i],
+ OMAP4430_PRM_OCP_SOCKET_INST,
+ omap4_prcm_irq_setup.mask + i * 4);
}
/**
@@ -306,10 +310,10 @@ static void omap44xx_prm_reconfigure_io_chain(void)
omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK,
OMAP4430_WUCLK_CTRL_MASK,
inst,
- OMAP4_PRM_IO_PMCTRL_OFFSET);
+ omap4_prcm_irq_setup.pm_ctrl);
omap_test_timeout(
(((omap4_prm_read_inst_reg(inst,
- OMAP4_PRM_IO_PMCTRL_OFFSET) &
+ omap4_prcm_irq_setup.pm_ctrl) &
OMAP4430_WUCLK_STATUS_MASK) >>
OMAP4430_WUCLK_STATUS_SHIFT) == 1),
MAX_IOPAD_LATCH_TIME, i);
@@ -319,10 +323,10 @@ static void omap44xx_prm_reconfigure_io_chain(void)
/* Trigger WUCLKIN disable */
omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK, 0x0,
inst,
- OMAP4_PRM_IO_PMCTRL_OFFSET);
+ omap4_prcm_irq_setup.pm_ctrl);
omap_test_timeout(
(((omap4_prm_read_inst_reg(inst,
- OMAP4_PRM_IO_PMCTRL_OFFSET) &
+ omap4_prcm_irq_setup.pm_ctrl) &
OMAP4430_WUCLK_STATUS_MASK) >>
OMAP4430_WUCLK_STATUS_SHIFT) == 0),
MAX_IOPAD_LATCH_TIME, i);
@@ -350,7 +354,7 @@ static void __init omap44xx_prm_enable_io_wakeup(void)
omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK,
OMAP4430_GLOBAL_WUEN_MASK,
inst,
- OMAP4_PRM_IO_PMCTRL_OFFSET);
+ omap4_prcm_irq_setup.pm_ctrl);
}
/**
@@ -719,6 +723,15 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
omap4_prminst_set_prm_dev_inst(data->device_inst_offset);
+ /* Add AM437X specific differences */
+ if (of_device_is_compatible(data->np, "ti,am4-prcm")) {
+ omap4_prcm_irq_setup.nr_irqs = 1;
+ omap4_prcm_irq_setup.nr_regs = 1;
+ omap4_prcm_irq_setup.pm_ctrl = AM43XX_PRM_IO_PMCTRL_OFFSET;
+ omap4_prcm_irq_setup.ack = AM43XX_PRM_IRQSTATUS_MPU_OFFSET;
+ omap4_prcm_irq_setup.mask = AM43XX_PRM_IRQENABLE_MPU_OFFSET;
+ }
+
return prm_register(&omap44xx_prm_ll_data);
}