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-rw-r--r--arch/arm/mach-omap1/common.h2
-rw-r--r--arch/arm/mach-omap1/devices.c21
-rw-r--r--arch/arm/mach-omap1/reset.c9
-rw-r--r--arch/arm/mach-omap2/Makefile7
-rw-r--r--arch/arm/mach-omap2/am33xx.h1
-rw-r--r--arch/arm/mach-omap2/board-2430sdp.c2
-rw-r--r--arch/arm/mach-omap2/board-3430sdp.c2
-rw-r--r--arch/arm/mach-omap2/board-3630sdp.c2
-rw-r--r--arch/arm/mach-omap2/board-4430sdp.c2
-rw-r--r--arch/arm/mach-omap2/board-am3517crane.c2
-rw-r--r--arch/arm/mach-omap2/board-am3517evm.c2
-rw-r--r--arch/arm/mach-omap2/board-apollon.c2
-rw-r--r--arch/arm/mach-omap2/board-cm-t35.c18
-rw-r--r--arch/arm/mach-omap2/board-cm-t3517.c2
-rw-r--r--arch/arm/mach-omap2/board-devkit8000.c2
-rw-r--r--arch/arm/mach-omap2/board-generic.c10
-rw-r--r--arch/arm/mach-omap2/board-h4.c2
-rw-r--r--arch/arm/mach-omap2/board-igep0020.c4
-rw-r--r--arch/arm/mach-omap2/board-ldp.c2
-rw-r--r--arch/arm/mach-omap2/board-n8x0.c6
-rw-r--r--arch/arm/mach-omap2/board-omap3beagle.c2
-rw-r--r--arch/arm/mach-omap2/board-omap3evm.c2
-rw-r--r--arch/arm/mach-omap2/board-omap3logic.c4
-rw-r--r--arch/arm/mach-omap2/board-omap3pandora.c2
-rw-r--r--arch/arm/mach-omap2/board-omap3stalker.c2
-rw-r--r--arch/arm/mach-omap2/board-omap3touchbook.c2
-rw-r--r--arch/arm/mach-omap2/board-omap4panda.c2
-rw-r--r--arch/arm/mach-omap2/board-overo.c2
-rw-r--r--arch/arm/mach-omap2/board-rm680.c4
-rw-r--r--arch/arm/mach-omap2/board-rx51.c2
-rw-r--r--arch/arm/mach-omap2/board-ti8168evm.c4
-rw-r--r--arch/arm/mach-omap2/board-zoom.c4
-rw-r--r--arch/arm/mach-omap2/clkt2xxx_apll.c57
-rw-r--r--arch/arm/mach-omap2/clkt2xxx_dpllcore.c36
-rw-r--r--arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c70
-rw-r--r--arch/arm/mach-omap2/clkt_iclk.c1
-rw-r--r--arch/arm/mach-omap2/clock.c57
-rw-r--r--arch/arm/mach-omap2/clock.h28
-rw-r--r--arch/arm/mach-omap2/clock2420_data.c26
-rw-r--r--arch/arm/mach-omap2/clock2430_data.c26
-rw-r--r--arch/arm/mach-omap2/clock2xxx.c16
-rw-r--r--arch/arm/mach-omap2/clock2xxx.h9
-rw-r--r--arch/arm/mach-omap2/cm-regbits-24xx.h2
-rw-r--r--arch/arm/mach-omap2/cm.h20
-rw-r--r--arch/arm/mach-omap2/cm2xxx.c128
-rw-r--r--arch/arm/mach-omap2/cm2xxx.h4
-rw-r--r--arch/arm/mach-omap2/cm2xxx_3xxx.h8
-rw-r--r--arch/arm/mach-omap2/cm3xxx.c66
-rw-r--r--arch/arm/mach-omap2/cm3xxx.h5
-rw-r--r--arch/arm/mach-omap2/cm_common.c70
-rw-r--r--arch/arm/mach-omap2/cminst44xx.h2
-rw-r--r--arch/arm/mach-omap2/common.c183
-rw-r--r--arch/arm/mach-omap2/common.h133
-rw-r--r--arch/arm/mach-omap2/control.c10
-rw-r--r--arch/arm/mach-omap2/control.h2
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c1
-rw-r--r--arch/arm/mach-omap2/devices.c26
-rw-r--r--arch/arm/mach-omap2/display.c2
-rw-r--r--arch/arm/mach-omap2/hdq1w.c4
-rw-r--r--arch/arm/mach-omap2/i2c.c6
-rw-r--r--arch/arm/mach-omap2/id.c7
-rw-r--r--arch/arm/mach-omap2/io.c86
-rw-r--r--arch/arm/mach-omap2/mcbsp.c2
-rw-r--r--arch/arm/mach-omap2/msdi.c4
-rw-r--r--arch/arm/mach-omap2/omap2-restart.c65
-rw-r--r--arch/arm/mach-omap2/omap3-restart.c36
-rw-r--r--arch/arm/mach-omap2/omap4-common.c19
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c8
-rw-r--r--arch/arm/mach-omap2/pm34xx.c1
-rw-r--r--arch/arm/mach-omap2/powerdomain.c2
-rw-r--r--arch/arm/mach-omap2/prcm-common.h22
-rw-r--r--arch/arm/mach-omap2/prcm.c189
-rw-r--r--arch/arm/mach-omap2/prcm_mpu44xx.c17
-rw-r--r--arch/arm/mach-omap2/prcm_mpu44xx.h9
-rw-r--r--arch/arm/mach-omap2/prm.h24
-rw-r--r--arch/arm/mach-omap2/prm2xxx.c15
-rw-r--r--arch/arm/mach-omap2/prm2xxx.h2
-rw-r--r--arch/arm/mach-omap2/prm2xxx_3xxx.h7
-rw-r--r--arch/arm/mach-omap2/prm3xxx.c16
-rw-r--r--arch/arm/mach-omap2/prm3xxx.h2
-rw-r--r--arch/arm/mach-omap2/prm44xx.c1
-rw-r--r--arch/arm/mach-omap2/prm_common.c16
-rw-r--r--arch/arm/mach-omap2/prminst44xx.h2
-rw-r--r--arch/arm/mach-omap2/sdrc.c8
-rw-r--r--arch/arm/mach-omap2/sdrc.h2
-rw-r--r--arch/arm/mach-omap2/ti81xx.h9
-rw-r--r--arch/arm/mach-omap2/wd_timer.c40
-rw-r--r--arch/arm/plat-omap/include/plat/prcm.h37
-rw-r--r--drivers/watchdog/omap_wdt.c26
-rw-r--r--include/linux/platform_data/omap-wd-timer.h38
90 files changed, 991 insertions, 851 deletions
diff --git a/arch/arm/mach-omap1/common.h b/arch/arm/mach-omap1/common.h
index d6ac18d04da..ecd0bb664da 100644
--- a/arch/arm/mach-omap1/common.h
+++ b/arch/arm/mach-omap1/common.h
@@ -94,6 +94,6 @@ extern int ocpi_enable(void);
static inline int ocpi_enable(void) { return 0; }
#endif
-extern int omap1_get_reset_sources(void);
+extern u32 omap1_get_reset_sources(void);
#endif /* __ARCH_ARM_MACH_OMAP1_COMMON_H */
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index 645668e2b1d..745031870ce 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -17,6 +17,8 @@
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
+#include <linux/platform_data/omap-wd-timer.h>
+
#include <asm/mach/map.h>
#include <mach/tc.h>
@@ -448,18 +450,31 @@ static struct resource wdt_resources[] = {
};
static struct platform_device omap_wdt_device = {
- .name = "omap_wdt",
- .id = -1,
+ .name = "omap_wdt",
+ .id = -1,
.num_resources = ARRAY_SIZE(wdt_resources),
.resource = wdt_resources,
};
static int __init omap_init_wdt(void)
{
+ struct omap_wd_timer_platform_data pdata;
+ int ret;
+
if (!cpu_is_omap16xx())
return -ENODEV;
- return platform_device_register(&omap_wdt_device);
+ pdata.read_reset_sources = omap1_get_reset_sources;
+
+ ret = platform_device_register(&omap_wdt_device);
+ if (!ret) {
+ ret = platform_device_add_data(&omap_wdt_device, &pdata,
+ sizeof(pdata));
+ if (ret)
+ platform_device_del(&omap_wdt_device);
+ }
+
+ return ret;
}
subsys_initcall(omap_init_wdt);
#endif
diff --git a/arch/arm/mach-omap1/reset.c b/arch/arm/mach-omap1/reset.c
index a0a9f97772e..5eebd7e889d 100644
--- a/arch/arm/mach-omap1/reset.c
+++ b/arch/arm/mach-omap1/reset.c
@@ -4,10 +4,9 @@
#include <linux/kernel.h>
#include <linux/io.h>
-#include <plat/prcm.h>
-
#include <mach/hardware.h>
+#include "iomap.h"
#include "common.h"
/* ARM_SYSST bit shifts related to SoC reset sources */
@@ -43,12 +42,12 @@ void omap1_restart(char mode, const char *cmd)
* Returns bits that represent the last reset source for the SoC. The
* format is standardized across OMAPs for use by the OMAP watchdog.
*/
-int omap1_get_reset_sources(void)
+u32 omap1_get_reset_sources(void)
{
- int ret = 0;
+ u32 ret = 0;
u16 rs;
- rs = __raw_readw(ARM_SYSST);
+ rs = __raw_readw(OMAP1_IO_ADDRESS(ARM_SYSST));
if (rs & (1 << ARM_SYSST_POR_SHIFT))
ret |= 1 << OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT;
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index ae87a3ea53a..96621a20413 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -50,6 +50,11 @@ AFLAGS_sram242x.o :=-Wa,-march=armv6
AFLAGS_sram243x.o :=-Wa,-march=armv6
AFLAGS_sram34xx.o :=-Wa,-march=armv7-a
+# Restart code (OMAP4/5 currently in omap4-common.c)
+obj-$(CONFIG_SOC_OMAP2420) += omap2-restart.o
+obj-$(CONFIG_SOC_OMAP2430) += omap2-restart.o
+obj-$(CONFIG_ARCH_OMAP3) += omap3-restart.o
+
# Pin multiplexing
obj-$(CONFIG_SOC_OMAP2420) += mux2420.o
obj-$(CONFIG_SOC_OMAP2430) += mux2430.o
@@ -94,7 +99,7 @@ obj-$(CONFIG_ARCH_OMAP4) += cpuidle44xx.o
endif
# PRCM
-obj-y += prcm.o prm_common.o cm_common.o
+obj-y += prm_common.o cm_common.o
obj-$(CONFIG_ARCH_OMAP2) += prm2xxx_3xxx.o prm2xxx.o cm2xxx.o
obj-$(CONFIG_ARCH_OMAP3) += prm2xxx_3xxx.o prm3xxx.o cm3xxx.o
obj-$(CONFIG_ARCH_OMAP3) += vc3xxx_data.o vp3xxx_data.o
diff --git a/arch/arm/mach-omap2/am33xx.h b/arch/arm/mach-omap2/am33xx.h
index 06c19bb7bca..43296c1af9e 100644
--- a/arch/arm/mach-omap2/am33xx.h
+++ b/arch/arm/mach-omap2/am33xx.h
@@ -21,5 +21,6 @@
#define AM33XX_SCM_BASE 0x44E10000
#define AM33XX_CTRL_BASE AM33XX_SCM_BASE
#define AM33XX_PRCM_BASE 0x44E00000
+#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + 0x3FC)
#endif /* __ASM_ARCH_AM33XX_H */
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 3fc6d839fb3..acb0a524ff7 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -286,5 +286,5 @@ MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
.init_machine = omap_2430sdp_init,
.init_late = omap2430_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 79fd9048fd7..6601754f951 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -597,5 +597,5 @@ MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
.init_machine = omap_3430sdp_init,
.init_late = omap3430_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c
index 81871b1c735..050aaa77125 100644
--- a/arch/arm/mach-omap2/board-3630sdp.c
+++ b/arch/arm/mach-omap2/board-3630sdp.c
@@ -212,5 +212,5 @@ MACHINE_START(OMAP_3630SDP, "OMAP 3630SDP board")
.init_machine = omap_sdp_init,
.init_late = omap3630_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index fd80d976872..85dfa71e0dc 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -881,5 +881,5 @@ MACHINE_START(OMAP_4430SDP, "OMAP4430 4430SDP board")
.init_machine = omap_4430sdp_init,
.init_late = omap4430_init_late,
.timer = &omap4_timer,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 603503c587b..51b96a1206d 100644
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -93,5 +93,5 @@ MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
.init_machine = am3517_crane_init,
.init_late = am35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 96d6c5ab5d4..4be58fd071f 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -393,5 +393,5 @@ MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
.init_machine = am3517_evm_init,
.init_late = am35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index 64cf1bde0f3..5d0a61f5416 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -338,5 +338,5 @@ MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
.init_machine = omap_apollon_init,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index cf9449bde18..488f86fd0e7 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -753,18 +753,18 @@ MACHINE_START(CM_T35, "Compulab CM-T35")
.init_machine = cm_t35_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(CM_T3730, "Compulab CM-T3730")
- .atag_offset = 0x100,
- .reserve = omap_reserve,
- .map_io = omap3_map_io,
- .init_early = omap3630_init_early,
- .init_irq = omap3_init_irq,
+ .atag_offset = 0x100,
+ .reserve = omap_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3630_init_early,
+ .init_irq = omap3_init_irq,
.handle_irq = omap3_intc_handle_irq,
- .init_machine = cm_t3730_init,
+ .init_machine = cm_t3730_init,
.init_late = omap3630_init_late,
- .timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .timer = &omap3_timer,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c
index 278664731d2..699caec8f9e 100644
--- a/arch/arm/mach-omap2/board-cm-t3517.c
+++ b/arch/arm/mach-omap2/board-cm-t3517.c
@@ -298,5 +298,5 @@ MACHINE_START(CM_T3517, "Compulab CM-T3517")
.init_machine = cm_t3517_init,
.init_late = am35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index 933479e3673..7667eb74952 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -643,5 +643,5 @@ MACHINE_START(DEVKIT8000, "OMAP3 Devkit8000")
.init_machine = devkit8000_init,
.init_late = omap35xx_init_late,
.timer = &omap3_secure_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 601ecdfb1cf..475e14f0721 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -57,7 +57,7 @@ DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
.init_machine = omap_generic_init,
.timer = &omap2_timer,
.dt_compat = omap242x_boards_compat,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
#endif
@@ -76,7 +76,7 @@ DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
.init_machine = omap_generic_init,
.timer = &omap2_timer,
.dt_compat = omap243x_boards_compat,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
#endif
@@ -95,7 +95,7 @@ DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
.init_machine = omap_generic_init,
.timer = &omap3_timer,
.dt_compat = omap3_boards_compat,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
#endif
@@ -134,7 +134,7 @@ DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
.init_late = omap4430_init_late,
.timer = &omap4_timer,
.dt_compat = omap4_boards_compat,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
#endif
@@ -154,6 +154,6 @@ DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
.init_machine = omap_generic_init,
.timer = &omap5_timer,
.dt_compat = omap5_boards_compat,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
#endif
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index bd11b0aa949..3c1e458f68a 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -386,5 +386,5 @@ MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
.init_machine = omap_h4_init,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index dbc705ac433..cea5d529262 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -651,7 +651,7 @@ MACHINE_START(IGEP0020, "IGEP v2 board")
.init_machine = igep_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(IGEP0030, "IGEP OMAP3 module")
@@ -664,5 +664,5 @@ MACHINE_START(IGEP0030, "IGEP OMAP3 module")
.init_machine = igep_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index 1164b106103..0869f4f3d3e 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -436,5 +436,5 @@ MACHINE_START(OMAP_LDP, "OMAP LDP board")
.init_machine = omap_ldp_init,
.init_late = omap3430_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index e3efcb88cb3..a4e167c55c1 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -690,7 +690,7 @@ MACHINE_START(NOKIA_N800, "Nokia N800")
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
MACHINE_START(NOKIA_N810, "Nokia N810")
@@ -703,7 +703,7 @@ MACHINE_START(NOKIA_N810, "Nokia N810")
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
@@ -716,5 +716,5 @@ MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
- .restart = omap_prcm_restart,
+ .restart = omap2xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 85c09a09c5e..8471c279ecd 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -541,5 +541,5 @@ MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
.init_machine = omap3_beagle_init,
.init_late = omap3_init_late,
.timer = &omap3_secure_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 3c0b9a90f3b..54647d6286b 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -757,5 +757,5 @@ MACHINE_START(OMAP3EVM, "OMAP3 EVM")
.init_machine = omap3_evm_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index e84e2a87537..2a065ba6eb5 100644
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -232,7 +232,7 @@ MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
.init_machine = omap3logic_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
@@ -245,5 +245,5 @@ MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
.init_machine = omap3logic_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index ce31bd329f3..a53a6683c1b 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -619,5 +619,5 @@ MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
.init_machine = omap3pandora_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index ba1124538b9..d8638b3b4f9 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -427,5 +427,5 @@ MACHINE_START(SBC3530, "OMAP3 STALKER")
.init_machine = omap3_stalker_init,
.init_late = omap35xx_init_late,
.timer = &omap3_secure_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index a225d819633..263cb9cfbf3 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -387,5 +387,5 @@ MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
.init_machine = omap3_touchbook_init,
.init_late = omap3430_init_late,
.timer = &omap3_secure_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 8c00b99cd2a..12a3a24d5bb 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -524,5 +524,5 @@ MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
.init_machine = omap4_panda_init,
.init_late = omap4430_init_late,
.timer = &omap4_timer,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 1cfb0374f5e..140b73094af 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -553,5 +553,5 @@ MACHINE_START(OVERO, "Gumstix Overo")
.init_machine = overo_init,
.init_late = omap35xx_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-rm680.c b/arch/arm/mach-omap2/board-rm680.c
index 1997e0e722a..cbcb1b2dc31 100644
--- a/arch/arm/mach-omap2/board-rm680.c
+++ b/arch/arm/mach-omap2/board-rm680.c
@@ -148,7 +148,7 @@ MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
.init_machine = rm680_init,
.init_late = omap3630_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
@@ -161,5 +161,5 @@ MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
.init_machine = rm680_init,
.init_late = omap3630_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index c388aec1479..bf8f74b0ce3 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -127,5 +127,5 @@ MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
.init_machine = rx51_init,
.init_late = omap3430_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c
index 5e672c2b6a4..1a3e056d63a 100644
--- a/arch/arm/mach-omap2/board-ti8168evm.c
+++ b/arch/arm/mach-omap2/board-ti8168evm.c
@@ -46,7 +46,7 @@ MACHINE_START(TI8168EVM, "ti8168evm")
.timer = &omap3_timer,
.init_machine = ti81xx_evm_init,
.init_late = ti81xx_init_late,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
MACHINE_START(TI8148EVM, "ti8148evm")
@@ -58,5 +58,5 @@ MACHINE_START(TI8148EVM, "ti8148evm")
.timer = &omap3_timer,
.init_machine = ti81xx_evm_init,
.init_late = ti81xx_init_late,
- .restart = omap_prcm_restart,
+ .restart = omap44xx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c
index 8feb4d99b96..d7fa31e6723 100644
--- a/arch/arm/mach-omap2/board-zoom.c
+++ b/arch/arm/mach-omap2/board-zoom.c
@@ -138,7 +138,7 @@ MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
.init_machine = omap_zoom_init,
.init_late = omap3430_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(OMAP_ZOOM3, "OMAP Zoom3 board")
@@ -151,5 +151,5 @@ MACHINE_START(OMAP_ZOOM3, "OMAP Zoom3 board")
.init_machine = omap_zoom_init,
.init_late = omap3630_init_late,
.timer = &omap3_timer,
- .restart = omap_prcm_restart,
+ .restart = omap3xxx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c
index e3f0c1e262a..8c5b13e7ee6 100644
--- a/arch/arm/mach-omap2/clkt2xxx_apll.c
+++ b/arch/arm/mach-omap2/clkt2xxx_apll.c
@@ -21,7 +21,6 @@
#include <linux/clk.h>
#include <linux/io.h>
-#include <plat/prcm.h>
#include "clock.h"
#include "clock2xxx.h"
@@ -37,44 +36,16 @@
#define APLLS_CLKIN_13MHZ 2
#define APLLS_CLKIN_12MHZ 3
-void __iomem *cm_idlest_pll;
-
/* Private functions */
-/* Enable an APLL if off */
-static int omap2_clk_apll_enable(struct clk *clk, u32 status_mask)
-{
- u32 cval, apll_mask;
-
- apll_mask = EN_APLL_LOCKED << clk->enable_bit;
-
- cval = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-
- if ((cval & apll_mask) == apll_mask)
- return 0; /* apll already enabled */
-
- cval &= ~apll_mask;
- cval |= apll_mask;
- omap2_cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
-
- omap2_cm_wait_idlest(cm_idlest_pll, status_mask,
- OMAP24XX_CM_IDLEST_VAL, __clk_get_name(clk));
-
- /*
- * REVISIT: Should we return an error code if omap2_wait_clock_ready()
- * fails?
- */
- return 0;
-}
-
-static int omap2_clk_apll96_enable(struct clk *clk)
+static int _apll96_enable(struct clk *clk)
{
- return omap2_clk_apll_enable(clk, OMAP24XX_ST_96M_APLL_MASK);
+ return omap2xxx_cm_apll96_enable();
}
-static int omap2_clk_apll54_enable(struct clk *clk)
+static int _apll54_enable(struct clk *clk)
{
- return omap2_clk_apll_enable(clk, OMAP24XX_ST_54M_APLL_MASK);
+ return omap2xxx_cm_apll54_enable();
}
static void _apll96_allow_idle(struct clk *clk)
@@ -97,28 +68,28 @@ static void _apll54_deny_idle(struct clk *clk)
omap2xxx_cm_set_apll54_disable_autoidle();
}
-/* Stop APLL */
-static void omap2_clk_apll_disable(struct clk *clk)
+static void _apll96_disable(struct clk *clk)
{
- u32 cval;
+ omap2xxx_cm_apll96_disable();
+}
- cval = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
- cval &= ~(EN_APLL_LOCKED << clk->enable_bit);
- omap2_cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
+static void _apll54_disable(struct clk *clk)
+{
+ omap2xxx_cm_apll54_disable();
}
/* Public data */
const struct clkops clkops_apll96 = {
- .enable = omap2_clk_apll96_enable,
- .disable = omap2_clk_apll_disable,
+ .enable = _apll96_enable,
+ .disable = _apll96_disable,
.allow_idle = _apll96_allow_idle,
.deny_idle = _apll96_deny_idle,
};
const struct clkops clkops_apll54 = {
- .enable = omap2_clk_apll54_enable,
- .disable = omap2_clk_apll_disable,
+ .enable = _apll54_enable,
+ .disable = _apll54_disable,
.allow_idle = _apll54_allow_idle,
.deny_idle = _apll54_deny_idle,
};
diff --git a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
index 3432f913f74..e687163a68f 100644
--- a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
+++ b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
@@ -30,15 +30,21 @@
#include "clock.h"
#include "clock2xxx.h"
#include "opp2xxx.h"
-#include "cm2xxx_3xxx.h"
+#include "cm2xxx.h"
#include "cm-regbits-24xx.h"
#include "sdrc.h"
/* #define DOWN_VARIABLE_DPLL 1 */ /* Experimental */
+/*
+ * dpll_core_ck: pointer to the combined dpll_ck + core_ck on OMAP2xxx
+ * (currently defined as "dpll_ck" in the OMAP2xxx clock tree). Set
+ * during dpll_ck init and used later by omap2xxx_clk_get_core_rate().
+ */
+static struct clk *dpll_core_ck;
+
/**
* omap2xxx_clk_get_core_rate - return the CORE_CLK rate
- * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
*
* Returns the CORE_CLK rate. CORE_CLK can have one of three rate
* sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
@@ -46,12 +52,14 @@
* struct clk *dpll_ck, which is a composite clock of dpll_ck and
* core_ck.
*/
-unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
+unsigned long omap2xxx_clk_get_core_rate(void)
{
long long core_clk;
u32 v;
- core_clk = omap2_get_dpll_rate(clk);
+ WARN_ON(!dpll_core_ck);
+
+ core_clk = omap2_get_dpll_rate(dpll_core_ck);
v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
v &= OMAP24XX_CORE_CLK_SRC_MASK;
@@ -99,7 +107,7 @@ static long omap2_dpllcore_round_rate(unsigned long target_rate)
unsigned long omap2_dpllcore_recalc(struct clk *clk)
{
- return omap2xxx_clk_get_core_rate(clk);
+ return omap2xxx_clk_get_core_rate();
}
int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
@@ -109,7 +117,7 @@ int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
struct prcm_config tmpset;
const struct dpll_data *dd;
- cur_rate = omap2xxx_clk_get_core_rate(dclk);
+ cur_rate = omap2xxx_clk_get_core_rate();
mult = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
mult &= OMAP24XX_CORE_CLK_SRC_MASK;
@@ -170,3 +178,19 @@ int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
return 0;
}
+/**
+ * omap2xxx_clkt_dpllcore_init - clk init function for dpll_ck
+ * @clk: struct clk *dpll_ck
+ *
+ * Store a local copy of @clk in dpll_core_ck so other code can query
+ * the core rate without having to clk_get(), which can sleep. Must
+ * only be called once. No return value. XXX If the clock
+ * registration process is ever changed such that dpll_ck is no longer
+ * statically defined, this code may need to change to increment some
+ * kind of use count on dpll_ck.
+ */
+void omap2xxx_clkt_dpllcore_init(struct clk *clk)
+{
+ WARN(dpll_core_ck, "dpll_core_ck already set - should never happen");
+ dpll_core_ck = clk;
+}
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
index c66276b2bf0..b9b981bac9d 100644
--- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
+++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
@@ -1,7 +1,7 @@
/*
* OMAP2xxx DVFS virtual clock functions
*
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2005-2008, 2012 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
@@ -39,13 +39,20 @@
#include "clock.h"
#include "clock2xxx.h"
#include "opp2xxx.h"
-#include "cm2xxx_3xxx.h"
+#include "cm2xxx.h"
#include "cm-regbits-24xx.h"
#include "sdrc.h"
const struct prcm_config *curr_prcm_set;
const struct prcm_config *rate_table;
+/*
+ * sys_ck_rate: the rate of the external high-frequency clock
+ * oscillator on the board. Set by the SoC-specific clock init code.
+ * Once set during a boot, will not change.
+ */
+static unsigned long sys_ck_rate;
+
/**
* omap2_table_mpu_recalc - just return the MPU speed
* @clk: virt_prcm_set struct clk
@@ -67,15 +74,14 @@ unsigned long omap2_table_mpu_recalc(struct clk *clk)
long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
{
const struct prcm_config *ptr;
- long highest_rate, sys_clk_rate;
+ long highest_rate;
highest_rate = -EINVAL;
- sys_clk_rate = __clk_get_rate(sclk);
for (ptr = rate_table; ptr->mpu_speed; ptr++) {
if (!(ptr->flags & cpu_mask))
continue;
- if (ptr->xtal_speed != sys_clk_rate)
+ if (ptr->xtal_speed != sys_ck_rate)
continue;
highest_rate = ptr->mpu_speed;
@@ -94,15 +100,12 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate)
const struct prcm_config *prcm;
unsigned long found_speed = 0;
unsigned long flags;
- long sys_clk_rate;
-
- sys_clk_rate = __clk_get_rate(sclk);
for (prcm = rate_table; prcm->mpu_speed; prcm++) {
if (!(prcm->flags & cpu_mask))
continue;
- if (prcm->xtal_speed != sys_clk_rate)
+ if (prcm->xtal_speed != sys_ck_rate)
continue;
if (prcm->mpu_speed <= rate) {
@@ -118,7 +121,7 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate)
}
curr_prcm_set = prcm;
- cur_rate = omap2xxx_clk_get_core_rate(dclk);
+ cur_rate = omap2xxx_clk_get_core_rate();
if (prcm->dpll_speed == cur_rate / 2) {
omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
@@ -168,3 +171,50 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate)
return 0;
}
+
+/**
+ * omap2xxx_clkt_vps_check_bootloader_rate - determine which of the rate
+ * table sets matches the current CORE DPLL hardware rate
+ *
+ * Check the MPU rate set by bootloader. Sets the 'curr_prcm_set'
+ * global to point to the active rate set when found; otherwise, sets
+ * it to NULL. No return value;
+ */
+void omap2xxx_clkt_vps_check_bootloader_rates(void)
+{
+ const struct prcm_config *prcm = NULL;
+ unsigned long rate;
+
+ rate = omap2xxx_clk_get_core_rate();
+ for (prcm = rate_table; prcm->mpu_speed; prcm++) {
+ if (!(prcm->flags & cpu_mask))
+ continue;
+ if (prcm->xtal_speed != sys_ck_rate)
+ continue;
+ if (prcm->dpll_speed <= rate)
+ break;
+ }
+ curr_prcm_set = prcm;
+}
+
+/**
+ * omap2xxx_clkt_vps_late_init - store a copy of the sys_ck rate
+ *
+ * Store a copy of the sys_ck rate for later use by the OMAP2xxx DVFS
+ * code. (The sys_ck rate does not -- or rather, must not -- change
+ * during kernel runtime.) Must be called after we have a valid
+ * sys_ck rate, but before the virt_prcm_set clock rate is
+ * recalculated. No return value.
+ */
+void omap2xxx_clkt_vps_late_init(void)
+{
+ struct clk *c;
+
+ c = clk_get(NULL, "sys_ck");
+ if (IS_ERR(c)) {
+ WARN(1, "could not locate sys_ck\n");
+ } else {
+ sys_ck_rate = clk_get_rate(c);
+ clk_put(c);
+ }
+}
diff --git a/arch/arm/mach-omap2/clkt_iclk.c b/arch/arm/mach-omap2/clkt_iclk.c
index 7c8d41e4983..fe774a09dd0 100644
--- a/arch/arm/mach-omap2/clkt_iclk.c
+++ b/arch/arm/mach-omap2/clkt_iclk.c
@@ -14,7 +14,6 @@
#include <linux/clk.h>
#include <linux/io.h>
-#include <plat/prcm.h>
#include "clock.h"
#include "clock2xxx.h"
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 9205ea7d8dd..e381d991092 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -26,17 +26,24 @@
#include <asm/cpu.h>
-#include <plat/prcm.h>
#include <trace/events/power.h>
#include "soc.h"
#include "clockdomain.h"
#include "clock.h"
+#include "cm.h"
#include "cm2xxx.h"
#include "cm3xxx.h"
#include "cm-regbits-24xx.h"
#include "cm-regbits-34xx.h"
+#include "common.h"
+
+/*
+ * MAX_MODULE_ENABLE_WAIT: maximum of number of microseconds to wait
+ * for a module to indicate that it is no longer in idle
+ */
+#define MAX_MODULE_ENABLE_WAIT 100000
u16 cpu_mask;
@@ -58,6 +65,40 @@ static DEFINE_SPINLOCK(clockfw_lock);
/* Private functions */
+
+/**
+ * _wait_idlest_generic - wait for a module to leave the idle state
+ * @reg: virtual address of module IDLEST register
+ * @mask: value to mask against to determine if the module is active
+ * @idlest: idle state indicator (0 or 1) for the clock
+ * @name: name of the clock (for printk)
+ *
+ * Wait for a module to leave idle, where its idle-status register is
+ * not inside the CM module. Returns 1 if the module left idle
+ * promptly, or 0 if the module did not leave idle before the timeout
+ * elapsed. XXX Deprecated - should be moved into drivers for the
+ * individual IP block that the IDLEST register exists in.
+ */
+static int _wait_idlest_generic(void __iomem *reg, u32 mask, u8 idlest,
+ const char *name)
+{
+ int i = 0, ena = 0;
+
+ ena = (idlest) ? 0 : mask;
+
+ omap_test_timeout(((__raw_readl(reg) & mask) == ena),
+ MAX_MODULE_ENABLE_WAIT, i);
+
+ if (i < MAX_MODULE_ENABLE_WAIT)
+ pr_debug("omap clock: module associated with clock %s ready after %d loops\n",
+ name, i);
+ else
+ pr_err("omap clock: module associated with clock %s didn't enable in %d tries\n",
+ name, MAX_MODULE_ENABLE_WAIT);
+
+ return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0;
+};
+
/**
* _omap2_module_wait_ready - wait for an OMAP module to leave IDLE
* @clk: struct clk * belonging to the module
@@ -71,7 +112,9 @@ static DEFINE_SPINLOCK(clockfw_lock);
static void _omap2_module_wait_ready(struct clk *clk)
{
void __iomem *companion_reg, *idlest_reg;
- u8 other_bit, idlest_bit, idlest_val;
+ u8 other_bit, idlest_bit, idlest_val, idlest_reg_id;
+ s16 prcm_mod;
+ int r;
/* Not all modules have multiple clocks that their IDLEST depends on */
if (clk->ops->find_companion) {
@@ -82,8 +125,14 @@ static void _omap2_module_wait_ready(struct clk *clk)
clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit, &idlest_val);
- omap2_cm_wait_idlest(idlest_reg, (1 << idlest_bit), idlest_val,
- __clk_get_name(clk));
+ r = cm_split_idlest_reg(idlest_reg, &prcm_mod, &idlest_reg_id);
+ if (r) {
+ /* IDLEST register not in the CM module */
+ _wait_idlest_generic(idlest_reg, (1 << idlest_bit), idlest_val,
+ clk->name);
+ } else {
+ cm_wait_module_ready(prcm_mod, idlest_reg_id, idlest_bit);
+ };
}
/* Public functions */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index cfba1ffe5cc..ff9789bc0fd 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -409,33 +409,6 @@ extern void omap2_clkt_iclk_deny_idle(struct clk *clk);
u32 omap2_get_dpll_rate(struct clk *clk);
void omap2_init_dpll_parent(struct clk *clk);
-int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
-
-
-#ifdef CONFIG_ARCH_OMAP2
-void omap2xxx_clk_prepare_for_reboot(void);
-#else
-static inline void omap2xxx_clk_prepare_for_reboot(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-void omap3_clk_prepare_for_reboot(void);
-#else
-static inline void omap3_clk_prepare_for_reboot(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP4
-void omap4_clk_prepare_for_reboot(void);
-#else
-static inline void omap4_clk_prepare_for_reboot(void)
-{
-}
-#endif
-
int omap2_dflt_clk_enable(struct clk *clk);
void omap2_dflt_clk_disable(struct clk *clk);
void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg,
@@ -454,7 +427,6 @@ extern const struct clkops clkops_dummy;
extern const struct clkops clkops_omap2_dflt;
extern struct clk_functions omap2_clk_functions;
-extern struct clk *vclk, *sclk;
extern const struct clksel_rate gpt_32k_rates[];
extern const struct clksel_rate gpt_sys_rates[];
diff --git a/arch/arm/mach-omap2/clock2420_data.c b/arch/arm/mach-omap2/clock2420_data.c
index da1e388f22f..608874b651e 100644
--- a/arch/arm/mach-omap2/clock2420_data.c
+++ b/arch/arm/mach-omap2/clock2420_data.c
@@ -1,7 +1,7 @@
/*
* OMAP2420 clock data
*
- * Copyright (C) 2005-2009 Texas Instruments, Inc.
+ * Copyright (C) 2005-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2004-2011 Nokia Corporation
*
* Contacts:
@@ -124,6 +124,7 @@ static struct clk dpll_ck = {
.name = "dpll_ck",
.ops = &clkops_omap2xxx_dpll_ops,
.parent = &sys_ck, /* Can be func_32k also */
+ .init = &omap2xxx_clkt_dpllcore_init,
.dpll_data = &dpll_dd,
.clkdm_name = "wkup_clkdm",
.recalc = &omap2_dpllcore_recalc,
@@ -1924,12 +1925,9 @@ static struct omap_clk omap2420_clks[] = {
int __init omap2420_clk_init(void)
{
- const struct prcm_config *prcm;
struct omap_clk *c;
- u32 clkrate;
prcm_clksrc_ctrl = OMAP2420_PRCM_CLKSRC_CTRL;
- cm_idlest_pll = OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST);
cpu_mask = RATE_IN_242X;
rate_table = omap2420_rate_table;
@@ -1949,20 +1947,13 @@ int __init omap2420_clk_init(void)
omap2_init_clk_clkdm(c->lk.clk);
}
+ omap2xxx_clkt_vps_late_init();
+
/* Disable autoidle on all clocks; let the PM code enable it later */
omap_clk_disable_autoidle_all();
- /* Check the MPU rate set by bootloader */
- clkrate = omap2xxx_clk_get_core_rate(&dpll_ck);
- for (prcm = rate_table; prcm->mpu_speed; prcm++) {
- if (!(prcm->flags & cpu_mask))
- continue;
- if (prcm->xtal_speed != sys_ck.rate)
- continue;
- if (prcm->dpll_speed <= clkrate)
- break;
- }
- curr_prcm_set = prcm;
+ /* XXX Can this be done from the virt_prcm_set clk init function? */
+ omap2xxx_clkt_vps_check_bootloader_rates();
recalculate_root_clocks();
@@ -1976,11 +1967,6 @@ int __init omap2420_clk_init(void)
*/
clk_enable_init_clocks();
- /* Avoid sleeping sleeping during omap2_clk_prepare_for_reboot() */
- vclk = clk_get(NULL, "virt_prcm_set");
- sclk = clk_get(NULL, "sys_ck");
- dclk = clk_get(NULL, "dpll_ck");
-
return 0;
}
diff --git a/arch/arm/mach-omap2/clock2430_data.c b/arch/arm/mach-omap2/clock2430_data.c
index c97dafef894..b179b6ef432 100644
--- a/arch/arm/mach-omap2/clock2430_data.c
+++ b/arch/arm/mach-omap2/clock2430_data.c
@@ -1,7 +1,7 @@
/*
* OMAP2430 clock data
*
- * Copyright (C) 2005-2009 Texas Instruments, Inc.
+ * Copyright (C) 2005-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2004-2011 Nokia Corporation
*
* Contacts:
@@ -123,6 +123,7 @@ static struct clk dpll_ck = {
.name = "dpll_ck",
.ops = &clkops_omap2xxx_dpll_ops,
.parent = &sys_ck, /* Can be func_32k also */
+ .init = &omap2xxx_clkt_dpllcore_init,
.dpll_data = &dpll_dd,
.clkdm_name = "wkup_clkdm",
.recalc = &omap2_dpllcore_recalc,
@@ -2023,12 +2024,9 @@ static struct omap_clk omap2430_clks[] = {
int __init omap2430_clk_init(void)
{
- const struct prcm_config *prcm;
struct omap_clk *c;
- u32 clkrate;
prcm_clksrc_ctrl = OMAP2430_PRCM_CLKSRC_CTRL;
- cm_idlest_pll = OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST);
cpu_mask = RATE_IN_243X;
rate_table = omap2430_rate_table;
@@ -2048,20 +2046,13 @@ int __init omap2430_clk_init(void)
omap2_init_clk_clkdm(c->lk.clk);
}
+ omap2xxx_clkt_vps_late_init();
+
/* Disable autoidle on all clocks; let the PM code enable it later */
omap_clk_disable_autoidle_all();
- /* Check the MPU rate set by bootloader */
- clkrate = omap2xxx_clk_get_core_rate(&dpll_ck);
- for (prcm = rate_table; prcm->mpu_speed; prcm++) {
- if (!(prcm->flags & cpu_mask))
- continue;
- if (prcm->xtal_speed != sys_ck.rate)
- continue;
- if (prcm->dpll_speed <= clkrate)
- break;
- }
- curr_prcm_set = prcm;
+ /* XXX Can this be done from the virt_prcm_set clk init function? */
+ omap2xxx_clkt_vps_check_bootloader_rates();
recalculate_root_clocks();
@@ -2075,11 +2066,6 @@ int __init omap2430_clk_init(void)
*/
clk_enable_init_clocks();
- /* Avoid sleeping sleeping during omap2_clk_prepare_for_reboot() */
- vclk = clk_get(NULL, "virt_prcm_set");
- sclk = clk_get(NULL, "sys_ck");
- dclk = clk_get(NULL, "dpll_ck");
-
return 0;
}
diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index 5feee16fee0..5f7faeb4c19 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -28,27 +28,11 @@
#include "cm.h"
#include "cm-regbits-24xx.h"
-struct clk *vclk, *sclk, *dclk;
-
/*
* Omap24xx specific clock functions
*/
/*
- * Set clocks for bypass mode for reboot to work.
- */
-void omap2xxx_clk_prepare_for_reboot(void)
-{
- u32 rate;
-
- if (vclk == NULL || sclk == NULL)
- return;
-
- rate = clk_get_rate(sclk);
- clk_set_rate(vclk, rate);
-}
-
-/*
* Switch the MPU rate if specified on cmdline. We cannot do this
* early until cmdline is parsed. XXX This should be removed from the
* clock code and handled by the OPP layer code in the near future.
diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h
index cb6df8ca9e4..ce809c913b6 100644
--- a/arch/arm/mach-omap2/clock2xxx.h
+++ b/arch/arm/mach-omap2/clock2xxx.h
@@ -15,10 +15,13 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk *clk);
unsigned long omap2_osc_clk_recalc(struct clk *clk);
unsigned long omap2_dpllcore_recalc(struct clk *clk);
int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate);
-unsigned long omap2xxx_clk_get_core_rate(struct clk *clk);
+unsigned long omap2xxx_clk_get_core_rate(void);
u32 omap2xxx_get_apll_clkin(void);
u32 omap2xxx_get_sysclkdiv(void);
void omap2xxx_clk_prepare_for_reboot(void);
+void omap2xxx_clkt_dpllcore_init(struct clk *clk);
+void omap2xxx_clkt_vps_check_bootloader_rates(void);
+void omap2xxx_clkt_vps_late_init(void);
#ifdef CONFIG_SOC_OMAP2420
int omap2420_clk_init(void);
@@ -32,9 +35,7 @@ int omap2430_clk_init(void);
#define omap2430_clk_init() do { } while(0)
#endif
-extern void __iomem *prcm_clksrc_ctrl, *cm_idlest_pll;
-
-extern struct clk *dclk;
+extern void __iomem *prcm_clksrc_ctrl;
extern const struct clkops clkops_omap2430_i2chs_wait;
extern const struct clkops clkops_oscck;
diff --git a/arch/arm/mach-omap2/cm-regbits-24xx.h b/arch/arm/mach-omap2/cm-regbits-24xx.h
index 68629043756..11eaf16880c 100644
--- a/arch/arm/mach-omap2/cm-regbits-24xx.h
+++ b/arch/arm/mach-omap2/cm-regbits-24xx.h
@@ -333,7 +333,9 @@
#define OMAP24XX_EN_DPLL_MASK (0x3 << 0)
/* CM_IDLEST_CKGEN */
+#define OMAP24XX_ST_54M_APLL_SHIFT 9
#define OMAP24XX_ST_54M_APLL_MASK (1 << 9)
+#define OMAP24XX_ST_96M_APLL_SHIFT 8
#define OMAP24XX_ST_96M_APLL_MASK (1 << 8)
#define OMAP24XX_ST_54M_CLK_MASK (1 << 6)
#define OMAP24XX_ST_12M_CLK_MASK (1 << 5)
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index b3cee913dd6..93473f9a551 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -1,7 +1,7 @@
/*
* OMAP2+ Clock Management prototypes
*
- * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
@@ -22,6 +22,12 @@
*/
#define MAX_MODULE_READY_TIME 2000
+# ifndef __ASSEMBLER__
+extern void __iomem *cm_base;
+extern void __iomem *cm2_base;
+extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
+# endif
+
/*
* MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
* the PRCM to request that a module enter the inactive state in the
@@ -37,8 +43,18 @@
/**
* struct cm_ll_data - fn ptrs to per-SoC CM function implementations
+ * @split_idlest_reg: ptr to the SoC CM-specific split_idlest_reg impl
+ * @wait_module_ready: ptr to the SoC CM-specific wait_module_ready impl
*/
-struct cm_ll_data {};
+struct cm_ll_data {
+ int (*split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst,
+ u8 *idlest_reg_id);
+ int (*wait_module_ready)(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
+};
+
+extern int cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
+ u8 *idlest_reg_id);
+extern int cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
extern int cm_register(struct cm_ll_data *cld);
extern int cm_unregister(struct cm_ll_data *cld);
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index 64165013daf..db650690e9d 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -35,6 +35,9 @@
#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0
#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3
+/* CM_IDLEST_PLL bit value offset for APLLs (OMAP2xxx only) */
+#define EN_APLL_LOCKED 3
+
static const u8 omap2xxx_cm_idlest_offs[] = {
CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3, OMAP24XX_CM_IDLEST4
};
@@ -99,7 +102,7 @@ void omap2xxx_cm_set_dpll_auto_low_power_stop(void)
}
/*
- * APLL autoidle control
+ * APLL control
*/
static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask)
@@ -136,6 +139,102 @@ void omap2xxx_cm_set_apll96_auto_low_power_stop(void)
OMAP24XX_AUTO_96M_MASK);
}
+/* Enable an APLL if off */
+static int _omap2xxx_apll_enable(u8 enable_bit, u8 status_bit)
+{
+ u32 v, m;
+
+ m = EN_APLL_LOCKED << enable_bit;
+
+ v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+ if (v & m)
+ return 0; /* apll already enabled */
+
+ v |= m;
+ omap2_cm_write_mod_reg(v, PLL_MOD, CM_CLKEN);
+
+ omap2xxx_cm_wait_module_ready(PLL_MOD, 1, status_bit);
+
+ /*
+ * REVISIT: Should we return an error code if
+ * omap2xxx_cm_wait_module_ready() fails?
+ */
+ return 0;
+}
+
+/* Stop APLL */
+static void _omap2xxx_apll_disable(u8 enable_bit)
+{
+ u32 v;
+
+ v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+ v &= ~(EN_APLL_LOCKED << enable_bit);
+ omap2_cm_write_mod_reg(v, PLL_MOD, CM_CLKEN);
+}
+
+/* Enable an APLL if off */
+int omap2xxx_cm_apll54_enable(void)
+{
+ return _omap2xxx_apll_enable(OMAP24XX_EN_54M_PLL_SHIFT,
+ OMAP24XX_ST_54M_APLL_SHIFT);
+}
+
+/* Enable an APLL if off */
+int omap2xxx_cm_apll96_enable(void)
+{
+ return _omap2xxx_apll_enable(OMAP24XX_EN_96M_PLL_SHIFT,
+ OMAP24XX_ST_96M_APLL_SHIFT);
+}
+
+/* Stop APLL */
+void omap2xxx_cm_apll54_disable(void)
+{
+ _omap2xxx_apll_disable(OMAP24XX_EN_54M_PLL_SHIFT);
+}
+
+/* Stop APLL */
+void omap2xxx_cm_apll96_disable(void)
+{
+ _omap2xxx_apll_disable(OMAP24XX_EN_96M_PLL_SHIFT);
+}
+
+/**
+ * omap2xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components
+ * @idlest_reg: CM_IDLEST* virtual address
+ * @prcm_inst: pointer to an s16 to return the PRCM instance offset
+ * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID
+ *
+ * XXX This function is only needed until absolute register addresses are
+ * removed from the OMAP struct clk records.
+ */
+int omap2xxx_cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
+ u8 *idlest_reg_id)
+{
+ unsigned long offs;
+ u8 idlest_offs;
+ int i;
+
+ if (idlest_reg < cm_base || idlest_reg > (cm_base + 0x0fff))
+ return -EINVAL;
+
+ idlest_offs = (unsigned long)idlest_reg & 0xff;
+ for (i = 0; i < ARRAY_SIZE(omap2xxx_cm_idlest_offs); i++) {
+ if (idlest_offs == omap2xxx_cm_idlest_offs[i]) {
+ *idlest_reg_id = i + 1;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(omap2xxx_cm_idlest_offs))
+ return -EINVAL;
+
+ offs = idlest_reg - cm_base;
+ offs &= 0xff00;
+ *prcm_inst = offs;
+
+ return 0;
+}
+
/*
*
*/
@@ -253,3 +352,30 @@ struct clkdm_ops omap2_clkdm_operations = {
.clkdm_clk_disable = omap2xxx_clkdm_clk_disable,
};
+/*
+ *
+ */
+
+static struct cm_ll_data omap2xxx_cm_ll_data = {
+ .split_idlest_reg = &omap2xxx_cm_split_idlest_reg,
+ .wait_module_ready = &omap2xxx_cm_wait_module_ready,
+};
+
+int __init omap2xxx_cm_init(void)
+{
+ if (!cpu_is_omap24xx())
+ return 0;
+
+ return cm_register(&omap2xxx_cm_ll_data);
+}
+
+static void __exit omap2xxx_cm_exit(void)
+{
+ if (!cpu_is_omap24xx())
+ return;
+
+ /* Should never happen */
+ WARN(cm_unregister(&omap2xxx_cm_ll_data),
+ "%s: cm_ll_data function pointer mismatch\n", __func__);
+}
+__exitcall(omap2xxx_cm_exit);
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index bce3c4be6d1..4cbb39b051d 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -60,6 +60,10 @@ extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void);
extern bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask);
extern int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
u8 idlest_shift);
+extern int omap2xxx_cm_split_idlest_reg(void __iomem *idlest_reg,
+ s16 *prcm_inst, u8 *idlest_reg_id);
+
+extern int __init omap2xxx_cm_init(void);
#endif
diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h
index 0e26bb1bf7e..98e6b3c9cd9 100644
--- a/arch/arm/mach-omap2/cm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h
@@ -16,7 +16,7 @@
#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
#define __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
-#include "prcm-common.h"
+#include "cm.h"
/*
* Module specific CM register offsets from CM_BASE + domain offset
@@ -96,6 +96,11 @@ static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
}
+extern int omap2xxx_cm_apll54_enable(void);
+extern void omap2xxx_cm_apll54_disable(void);
+extern int omap2xxx_cm_apll96_enable(void);
+extern void omap2xxx_cm_apll96_disable(void);
+
#endif
/* CM register bits shared between 24XX and 3430 */
@@ -111,5 +116,4 @@ static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
/* CM_IDLEST_GFX */
#define OMAP_ST_GFX_MASK (1 << 0)
-
#endif
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index 8b03ec2f439..c2086f2e86b 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -110,6 +110,44 @@ int omap3xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
}
+/**
+ * omap3xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components
+ * @idlest_reg: CM_IDLEST* virtual address
+ * @prcm_inst: pointer to an s16 to return the PRCM instance offset
+ * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID
+ *
+ * XXX This function is only needed until absolute register addresses are
+ * removed from the OMAP struct clk records.
+ */
+int omap3xxx_cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
+ u8 *idlest_reg_id)
+{
+ unsigned long offs;
+ u8 idlest_offs;
+ int i;
+
+ if (idlest_reg < (cm_base + OMAP3430_IVA2_MOD) ||
+ idlest_reg > (cm_base + 0x1ffff))
+ return -EINVAL;
+
+ idlest_offs = (unsigned long)idlest_reg & 0xff;
+ for (i = 0; i < ARRAY_SIZE(omap3xxx_cm_idlest_offs); i++) {
+ if (idlest_offs == omap3xxx_cm_idlest_offs[i]) {
+ *idlest_reg_id = i + 1;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(omap3xxx_cm_idlest_offs))
+ return -EINVAL;
+
+ offs = idlest_reg - cm_base;
+ offs &= 0xff00;
+ *prcm_inst = offs;
+
+ return 0;
+}
+
/* Clockdomain low-level operations */
static int omap3xxx_clkdm_add_sleepdep(struct clockdomain *clkdm1,
@@ -597,3 +635,31 @@ void omap3_cm_restore_context(void)
omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
OMAP3_CM_CLKOUT_CTRL_OFFSET);
}
+
+/*
+ *
+ */
+
+static struct cm_ll_data omap3xxx_cm_ll_data = {
+ .split_idlest_reg = &omap3xxx_cm_split_idlest_reg,
+ .wait_module_ready = &omap3xxx_cm_wait_module_ready,
+};
+
+int __init omap3xxx_cm_init(void)
+{
+ if (!cpu_is_omap34xx())
+ return 0;
+
+ return cm_register(&omap3xxx_cm_ll_data);
+}
+
+static void __exit omap3xxx_cm_exit(void)
+{
+ if (!cpu_is_omap34xx())
+ return;
+
+ /* Should never happen */
+ WARN(cm_unregister(&omap3xxx_cm_ll_data),
+ "%s: cm_ll_data function pointer mismatch\n", __func__);
+}
+__exitcall(omap3xxx_cm_exit);
diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h
index 4a6ac812edf..e8e146f4a43 100644
--- a/arch/arm/mach-omap2/cm3xxx.h
+++ b/arch/arm/mach-omap2/cm3xxx.h
@@ -78,9 +78,14 @@ extern bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask);
extern int omap3xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
u8 idlest_shift);
+extern int omap3xxx_cm_split_idlest_reg(void __iomem *idlest_reg,
+ s16 *prcm_inst, u8 *idlest_reg_id);
+
extern void omap3_cm_save_context(void);
extern void omap3_cm_restore_context(void);
+extern int __init omap3xxx_cm_init(void);
+
#endif
#endif
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index 3246cef151d..0bab493ec13 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -2,7 +2,7 @@
* OMAP2+ common Clock Management (CM) IP block functions
*
* Copyright (C) 2012 Texas Instruments, Inc.
- * Paul Walmsley <paul@pwsan.com>
+ * Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -17,6 +17,7 @@
#include "cm2xxx.h"
#include "cm3xxx.h"
#include "cm44xx.h"
+#include "common.h"
/*
* cm_ll_data: function pointers to SoC-specific implementations of
@@ -25,6 +26,73 @@
static struct cm_ll_data null_cm_ll_data;
static struct cm_ll_data *cm_ll_data = &null_cm_ll_data;
+/* cm_base: base virtual address of the CM IP block */
+void __iomem *cm_base;
+
+/* cm2_base: base virtual address of the CM2 IP block (OMAP44xx only) */
+void __iomem *cm2_base;
+
+/**
+ * omap2_set_globals_cm - set the CM/CM2 base addresses (for early use)
+ * @cm: CM base virtual address
+ * @cm2: CM2 base virtual address (if present on the booted SoC)
+ *
+ * XXX Will be replaced when the PRM/CM drivers are completed.
+ */
+void __init omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2)
+{
+ cm_base = cm;
+ cm2_base = cm2;
+}
+
+/**
+ * cm_split_idlest_reg - split CM_IDLEST reg addr into its components
+ * @idlest_reg: CM_IDLEST* virtual address
+ * @prcm_inst: pointer to an s16 to return the PRCM instance offset
+ * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID
+ *
+ * Given an absolute CM_IDLEST register address @idlest_reg, passes
+ * the PRCM instance offset and IDLEST register ID back to the caller
+ * via the @prcm_inst and @idlest_reg_id. Returns -EINVAL upon error,
+ * or 0 upon success. XXX This function is only needed until absolute
+ * register addresses are removed from the OMAP struct clk records.
+ */
+int cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
+ u8 *idlest_reg_id)
+{
+ if (!cm_ll_data->split_idlest_reg) {
+ WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ return cm_ll_data->split_idlest_reg(idlest_reg, prcm_inst,
+ idlest_reg_id);
+}
+
+/**
+ * cm_wait_module_ready - wait for a module to leave idle or standby
+ * @prcm_mod: PRCM module offset
+ * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
+ * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
+ *
+ * Wait for the PRCM to indicate that the module identified by
+ * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon
+ * success, -EBUSY if the module doesn't enable in time, or -EINVAL if
+ * no per-SoC wait_module_ready() function pointer has been registered
+ * or if the idlest register is unknown on the SoC.
+ */
+int cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
+{
+ if (!cm_ll_data->wait_module_ready) {
+ WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ return cm_ll_data->wait_module_ready(prcm_mod, idlest_id, idlest_shift);
+}
+
/**
* cm_register - register per-SoC low-level data with the CM
* @cld: low-level per-SoC OMAP CM data & function pointers to register
diff --git a/arch/arm/mach-omap2/cminst44xx.h b/arch/arm/mach-omap2/cminst44xx.h
index d69fdefef98..bd7bab88974 100644
--- a/arch/arm/mach-omap2/cminst44xx.h
+++ b/arch/arm/mach-omap2/cminst44xx.h
@@ -38,4 +38,6 @@ extern u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, s16 inst,
extern u32 omap4_cminst_read_inst_reg_bits(u8 part, u16 inst, s16 idx,
u32 mask);
+extern void omap_cm_base_init(void);
+
#endif
diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c
index 34fb5b95859..5c2fd4863b2 100644
--- a/arch/arm/mach-omap2/common.c
+++ b/arch/arm/mach-omap2/common.c
@@ -14,196 +14,13 @@
*/
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/io.h>
#include <linux/platform_data/dsp-omap.h>
#include <plat/vram.h>
-#include "soc.h"
-#include "iomap.h"
#include "common.h"
-#include "clock.h"
-#include "sdrc.h"
-#include "control.h"
#include "omap-secure.h"
-/* Global address base setup code */
-
-static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
-{
- omap2_set_globals_tap(omap2_globals);
- omap2_set_globals_sdrc(omap2_globals);
- omap2_set_globals_control(omap2_globals);
- omap2_set_globals_prcm(omap2_globals);
-}
-
-#if defined(CONFIG_SOC_OMAP2420)
-
-static struct omap_globals omap242x_globals = {
- .class = OMAP242X_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(0x48014000),
- .sdrc = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
- .sms = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
-};
-
-void __init omap2_set_globals_242x(void)
-{
- __omap2_set_globals(&omap242x_globals);
-}
-
-void __init omap242x_map_io(void)
-{
- omap242x_map_common_io();
-}
-#endif
-
-#if defined(CONFIG_SOC_OMAP2430)
-
-static struct omap_globals omap243x_globals = {
- .class = OMAP243X_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(0x4900a000),
- .sdrc = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
- .sms = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
-};
-
-void __init omap2_set_globals_243x(void)
-{
- __omap2_set_globals(&omap243x_globals);
-}
-
-void __init omap243x_map_io(void)
-{
- omap243x_map_common_io();
-}
-#endif
-
-#if defined(CONFIG_ARCH_OMAP3)
-
-static struct omap_globals omap3_globals = {
- .class = OMAP343X_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(0x4830A000),
- .sdrc = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
- .sms = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
-};
-
-void __init omap2_set_globals_3xxx(void)
-{
- __omap2_set_globals(&omap3_globals);
-}
-
-void __init omap3_map_io(void)
-{
- omap34xx_map_common_io();
-}
-
-/*
- * Adjust TAP register base such that omap3_check_revision accesses the correct
- * TI81XX register for checking device ID (it adds 0x204 to tap base while
- * TI81XX DEVICE ID register is at offset 0x600 from control base).
- */
-#define TI81XX_TAP_BASE (TI81XX_CTRL_BASE + \
- TI81XX_CONTROL_DEVICE_ID - 0x204)
-
-static struct omap_globals ti81xx_globals = {
- .class = OMAP343X_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
-};
-
-void __init omap2_set_globals_ti81xx(void)
-{
- __omap2_set_globals(&ti81xx_globals);
-}
-
-void __init ti81xx_map_io(void)
-{
- omapti81xx_map_common_io();
-}
-#endif
-
-#if defined(CONFIG_SOC_AM33XX)
-#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + \
- TI81XX_CONTROL_DEVICE_ID - 0x204)
-
-static struct omap_globals am33xx_globals = {
- .class = AM335X_CLASS,
- .tap = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
- .ctrl = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
- .prm = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
- .cm = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
-};
-
-void __init omap2_set_globals_am33xx(void)
-{
- __omap2_set_globals(&am33xx_globals);
-}
-
-void __init am33xx_map_io(void)
-{
- omapam33xx_map_common_io();
-}
-#endif
-
-#if defined(CONFIG_ARCH_OMAP4)
-static struct omap_globals omap4_globals = {
- .class = OMAP443X_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
- .ctrl_pad = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
- .cm2 = OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
- .prcm_mpu = OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE),
-};
-
-void __init omap2_set_globals_443x(void)
-{
- __omap2_set_globals(&omap4_globals);
-}
-
-void __init omap4_map_io(void)
-{
- omap44xx_map_common_io();
-}
-#endif
-
-#if defined(CONFIG_SOC_OMAP5)
-static struct omap_globals omap5_globals = {
- .class = OMAP54XX_CLASS,
- .tap = OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
- .ctrl = OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
- .ctrl_pad = OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE),
- .prm = OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE),
- .cm = OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
- .cm2 = OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE),
- .prcm_mpu = OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE),
-};
-
-void __init omap2_set_globals_5xxx(void)
-{
- omap2_set_globals_tap(&omap5_globals);
- omap2_set_globals_control(&omap5_globals);
- omap2_set_globals_prcm(&omap5_globals);
-}
-
-void __init omap5_map_io(void)
-{
- omap5_map_common_io();
-}
-#endif
-
/*
* Stub function for OMAP2 so that common files
* continue to build when custom builds are used
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index c925c805969..c57eeeac7d1 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -43,54 +43,6 @@
#define OMAP_INTC_START NR_IRQS
-#ifdef CONFIG_SOC_OMAP2420
-extern void omap242x_map_common_io(void);
-#else
-static inline void omap242x_map_common_io(void)
-{
-}
-#endif
-
-#ifdef CONFIG_SOC_OMAP2430
-extern void omap243x_map_common_io(void);
-#else
-static inline void omap243x_map_common_io(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-extern void omap34xx_map_common_io(void);
-#else
-static inline void omap34xx_map_common_io(void)
-{
-}
-#endif
-
-#ifdef CONFIG_SOC_TI81XX
-extern void omapti81xx_map_common_io(void);
-#else
-static inline void omapti81xx_map_common_io(void)
-{
-}
-#endif
-
-#ifdef CONFIG_SOC_AM33XX
-extern void omapam33xx_map_common_io(void);
-#else
-static inline void omapam33xx_map_common_io(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP4
-extern void omap44xx_map_common_io(void);
-#else
-static inline void omap44xx_map_common_io(void)
-{
-}
-#endif
-
#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
int omap2_pm_init(void);
#else
@@ -127,14 +79,6 @@ static inline int omap_mux_late_init(void)
}
#endif
-#ifdef CONFIG_SOC_OMAP5
-extern void omap5_map_common_io(void);
-#else
-static inline void omap5_map_common_io(void)
-{
-}
-#endif
-
extern void omap2_init_common_infrastructure(void);
extern struct sys_timer omap2_timer;
@@ -167,52 +111,43 @@ void am35xx_init_late(void);
void ti81xx_init_late(void);
void omap4430_init_late(void);
int omap2_common_pm_late_init(void);
-void omap_prcm_restart(char, const char *);
-/*
- * IO bases for various OMAP processors
- * Except the tap base, rest all the io bases
- * listed are physical addresses.
- */
-struct omap_globals {
- u32 class; /* OMAP class to detect */
- void __iomem *tap; /* Control module ID code */
- void __iomem *sdrc; /* SDRAM Controller */
- void __iomem *sms; /* SDRAM Memory Scheduler */
- void __iomem *ctrl; /* System Control Module */
- void __iomem *ctrl_pad; /* PAD Control Module */
- void __iomem *prm; /* Power and Reset Management */
- void __iomem *cm; /* Clock Management */
- void __iomem *cm2;
- void __iomem *prcm_mpu;
-};
-
-void omap2_set_globals_242x(void);
-void omap2_set_globals_243x(void);
-void omap2_set_globals_3xxx(void);
-void omap2_set_globals_443x(void);
-void omap2_set_globals_5xxx(void);
-void omap2_set_globals_ti81xx(void);
-void omap2_set_globals_am33xx(void);
-
-/* These get called from omap2_set_globals_xxxx(), do not call these */
-void omap2_set_globals_tap(struct omap_globals *);
-#if defined(CONFIG_SOC_HAS_OMAP2_SDRC)
-void omap2_set_globals_sdrc(struct omap_globals *);
+#if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
+void omap2xxx_restart(char mode, const char *cmd);
#else
-static inline void omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
-{ }
+static inline void omap2xxx_restart(char mode, const char *cmd)
+{
+}
#endif
-void omap2_set_globals_control(struct omap_globals *);
-void omap2_set_globals_prcm(struct omap_globals *);
-
-void omap242x_map_io(void);
-void omap243x_map_io(void);
-void omap3_map_io(void);
-void am33xx_map_io(void);
-void omap4_map_io(void);
-void omap5_map_io(void);
-void ti81xx_map_io(void);
+
+#ifdef CONFIG_ARCH_OMAP3
+void omap3xxx_restart(char mode, const char *cmd);
+#else
+static inline void omap3xxx_restart(char mode, const char *cmd)
+{
+}
+#endif
+
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
+void omap44xx_restart(char mode, const char *cmd);
+#else
+static inline void omap44xx_restart(char mode, const char *cmd)
+{
+}
+#endif
+
+/* This gets called from mach-omap2/io.c, do not call this */
+void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
+
+void __init omap242x_map_io(void);
+void __init omap243x_map_io(void);
+void __init omap3_map_io(void);
+void __init am33xx_map_io(void);
+void __init omap4_map_io(void);
+void __init omap5_map_io(void);
+void __init ti81xx_map_io(void);
+
+/* omap_barriers_init() is OMAP4 only */
void omap_barriers_init(void);
/**
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 06375ad2091..2adb2683f07 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -147,13 +147,11 @@ static struct omap3_control_regs control_context;
#define OMAP_CTRL_REGADDR(reg) (omap2_ctrl_base + (reg))
#define OMAP4_CTRL_PAD_REGADDR(reg) (omap4_ctrl_pad_base + (reg))
-void __init omap2_set_globals_control(struct omap_globals *omap2_globals)
+void __init omap2_set_globals_control(void __iomem *ctrl,
+ void __iomem *ctrl_pad)
{
- if (omap2_globals->ctrl)
- omap2_ctrl_base = omap2_globals->ctrl;
-
- if (omap2_globals->ctrl_pad)
- omap4_ctrl_pad_base = omap2_globals->ctrl_pad;
+ omap2_ctrl_base = ctrl;
+ omap4_ctrl_pad_base = ctrl_pad;
}
void __iomem *omap_ctrl_base_get(void)
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a89e8256fd0..4ca8747b3cc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -414,6 +414,8 @@ extern void omap_ctrl_write_dsp_boot_addr(u32 bootaddr);
extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
extern void omap3630_ctrl_disable_rta(void);
extern int omap3_ctrl_save_padconf(void);
+extern void omap2_set_globals_control(void __iomem *ctrl,
+ void __iomem *ctrl_pad);
#else
#define omap_ctrl_base_get() 0
#define omap_ctrl_readb(x) 0
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index bc2756959be..bca7a888570 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -27,7 +27,6 @@
#include <linux/export.h>
#include <linux/cpu_pm.h>
-#include <plat/prcm.h>
#include "powerdomain.h"
#include "clockdomain.h"
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 2ad491d6910..cf365c387c0 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -646,29 +646,3 @@ static int __init omap2_init_devices(void)
return 0;
}
arch_initcall(omap2_init_devices);
-
-#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
-static int __init omap_init_wdt(void)
-{
- int id = -1;
- struct platform_device *pdev;
- struct omap_hwmod *oh;
- char *oh_name = "wd_timer2";
- char *dev_name = "omap_wdt";
-
- if (!cpu_class_is_omap2() || of_have_populated_dt())
- return 0;
-
- oh = omap_hwmod_lookup(oh_name);
- if (!oh) {
- pr_err("Could not look up wd_timer%d hwmod\n", id);
- return -EINVAL;
- }
-
- pdev = omap_device_build(dev_name, id, oh, NULL, 0, NULL, 0, 0);
- WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
- dev_name, oh->name);
- return 0;
-}
-subsys_initcall(omap_init_wdt);
-#endif
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 89c57129357..38ba58c9762 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -35,6 +35,7 @@
#include "mux.h"
#include "control.h"
#include "display.h"
+#include "prm.h"
#define DISPC_CONTROL 0x0040
#define DISPC_CONTROL2 0x0238
@@ -512,7 +513,6 @@ static void dispc_disable_outputs(void)
}
}
-#define MAX_MODULE_SOFTRESET_WAIT 10000
int omap_dss_reset(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c
index 3da8900598c..ab7bf181a10 100644
--- a/arch/arm/mach-omap2/hdq1w.c
+++ b/arch/arm/mach-omap2/hdq1w.c
@@ -31,11 +31,9 @@
#include "omap_device.h"
#include "hdq1w.h"
+#include "prm.h"
#include "common.h"
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
/**
* omap_hdq1w_reset - reset the OMAP HDQ1W module
* @oh: struct omap_hwmod *
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c
index ad55b943108..be092e8e5d8 100644
--- a/arch/arm/mach-omap2/i2c.c
+++ b/arch/arm/mach-omap2/i2c.c
@@ -20,10 +20,11 @@
*/
#include "soc.h"
-#include "common.h"
#include "omap_hwmod.h"
#include "omap_device.h"
+#include "prm.h"
+#include "common.h"
#include "mux.h"
#include "i2c.h"
@@ -32,9 +33,6 @@
#define OMAP2_I2C_CON_OFFSET 0x24
#define OMAP4_I2C_CON_OFFSET 0xA4
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
#define MAX_OMAP_I2C_HWMOD_NAME_LEN 16
static void __init omap2_i2c_mux_pins(int bus_id)
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index cf2362ccb23..f1e12150278 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -559,11 +559,12 @@ void __init omap5xxx_check_revision(void)
* detect the exact revision later on in omap2_detect_revision() once map_io
* is done.
*/
-void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
+void __init omap2_set_globals_tap(u32 class, void __iomem *tap)
{
- omap_revision = omap2_globals->class;
- tap_base = omap2_globals->tap;
+ omap_revision = class;
+ tap_base = tap;
+ /* XXX What is this intended to do? */
if (cpu_is_omap34xx())
tap_prod_id = 0x0210;
else
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4fadc789557..c3472bd8e5a 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -42,8 +42,15 @@
#include "clock44xx.h"
#include "omap-pm.h"
#include "sdrc.h"
+#include "control.h"
#include "serial.h"
-
+#include "cm2xxx.h"
+#include "cm3xxx.h"
+#include "prm.h"
+#include "cm.h"
+#include "prcm_mpu44xx.h"
+#include "prminst44xx.h"
+#include "cminst44xx.h"
/*
* The machine specific code may provide the extra mapping besides the
* default mapping provided here.
@@ -265,7 +272,7 @@ static struct map_desc omap54xx_io_desc[] __initdata = {
#endif
#ifdef CONFIG_SOC_OMAP2420
-void __init omap242x_map_common_io(void)
+void __init omap242x_map_io(void)
{
iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
@@ -273,7 +280,7 @@ void __init omap242x_map_common_io(void)
#endif
#ifdef CONFIG_SOC_OMAP2430
-void __init omap243x_map_common_io(void)
+void __init omap243x_map_io(void)
{
iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
@@ -281,28 +288,28 @@ void __init omap243x_map_common_io(void)
#endif
#ifdef CONFIG_ARCH_OMAP3
-void __init omap34xx_map_common_io(void)
+void __init omap3_map_io(void)
{
iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
}
#endif
#ifdef CONFIG_SOC_TI81XX
-void __init omapti81xx_map_common_io(void)
+void __init ti81xx_map_io(void)
{
iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
}
#endif
#ifdef CONFIG_SOC_AM33XX
-void __init omapam33xx_map_common_io(void)
+void __init am33xx_map_io(void)
{
iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
}
#endif
#ifdef CONFIG_ARCH_OMAP4
-void __init omap44xx_map_common_io(void)
+void __init omap4_map_io(void)
{
iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
omap_barriers_init();
@@ -310,7 +317,7 @@ void __init omap44xx_map_common_io(void)
#endif
#ifdef CONFIG_SOC_OMAP5
-void __init omap5_map_common_io(void)
+void __init omap5_map_io(void)
{
iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
}
@@ -377,8 +384,15 @@ static void __init omap_hwmod_init_postsetup(void)
#ifdef CONFIG_SOC_OMAP2420
void __init omap2420_init_early(void)
{
- omap2_set_globals_242x();
+ omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
+ omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
+ OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), NULL);
omap2xxx_check_revision();
+ omap2xxx_cm_init();
omap_common_init_early();
omap2xxx_voltagedomains_init();
omap242x_powerdomains_init();
@@ -399,8 +413,15 @@ void __init omap2420_init_late(void)
#ifdef CONFIG_SOC_OMAP2430
void __init omap2430_init_early(void)
{
- omap2_set_globals_243x();
+ omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
+ omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
+ OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), NULL);
omap2xxx_check_revision();
+ omap2xxx_cm_init();
omap_common_init_early();
omap2xxx_voltagedomains_init();
omap243x_powerdomains_init();
@@ -425,9 +446,16 @@ void __init omap2430_init_late(void)
#ifdef CONFIG_ARCH_OMAP3
void __init omap3_init_early(void)
{
- omap2_set_globals_3xxx();
+ omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
+ omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
+ OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
omap3xxx_check_revision();
omap3xxx_check_features();
+ omap3xxx_cm_init();
omap_common_init_early();
omap3xxx_voltagedomains_init();
omap3xxx_powerdomains_init();
@@ -459,7 +487,12 @@ void __init am35xx_init_early(void)
void __init ti81xx_init_early(void)
{
- omap2_set_globals_ti81xx();
+ omap2_set_globals_tap(OMAP343X_CLASS,
+ OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
omap3xxx_check_revision();
ti81xx_check_features();
omap_common_init_early();
@@ -517,7 +550,12 @@ void __init ti81xx_init_late(void)
#ifdef CONFIG_SOC_AM33XX
void __init am33xx_init_early(void)
{
- omap2_set_globals_am33xx();
+ omap2_set_globals_tap(AM335X_CLASS,
+ AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
+ omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
+ omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
omap3xxx_check_revision();
ti81xx_check_features();
omap_common_init_early();
@@ -533,7 +571,16 @@ void __init am33xx_init_early(void)
#ifdef CONFIG_ARCH_OMAP4
void __init omap4430_init_early(void)
{
- omap2_set_globals_443x();
+ omap2_set_globals_tap(OMAP443X_CLASS,
+ OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
+ OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
+ OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
+ omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
+ omap_prm_base_init();
+ omap_cm_base_init();
omap4xxx_check_revision();
omap4xxx_check_features();
omap_common_init_early();
@@ -556,7 +603,16 @@ void __init omap4430_init_late(void)
#ifdef CONFIG_SOC_OMAP5
void __init omap5_init_early(void)
{
- omap2_set_globals_5xxx();
+ omap2_set_globals_tap(OMAP54XX_CLASS,
+ OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
+ omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
+ OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
+ omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
+ omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
+ OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
+ omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
+ omap_prm_base_init();
+ omap_cm_base_init();
omap5xxx_check_revision();
omap_common_init_early();
}
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index a106c75c533..bf496510eb5 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -29,7 +29,7 @@
* FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle.
* Sidetone needs non-gated ICLK and sidetone autoidle is broken.
*/
-#include "cm2xxx_3xxx.h"
+#include "cm3xxx.h"
#include "cm-regbits-34xx.h"
static int omap3_enable_st_clock(unsigned int id, bool enable)
diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c
index 627e97e3074..aafdd4ca9f4 100644
--- a/arch/arm/mach-omap2/msdi.c
+++ b/arch/arm/mach-omap2/msdi.c
@@ -25,6 +25,7 @@
#include <linux/err.h>
#include <linux/platform_data/gpio-omap.h>
+#include "prm.h"
#include "common.h"
#include "control.h"
#include "omap_hwmod.h"
@@ -43,9 +44,6 @@
#define MSDI_CON_CLKD_MASK (0x3f << 0)
#define MSDI_CON_CLKD_SHIFT 0
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
/* MSDI_TARGET_RESET_CLKD: clock divisor to use throughout the reset */
#define MSDI_TARGET_RESET_CLKD 0x3ff
diff --git a/arch/arm/mach-omap2/omap2-restart.c b/arch/arm/mach-omap2/omap2-restart.c
new file mode 100644
index 00000000000..be6bc89ab1e
--- /dev/null
+++ b/arch/arm/mach-omap2/omap2-restart.c
@@ -0,0 +1,65 @@
+/*
+ * omap2-restart.c - code common to all OMAP2xxx machines.
+ *
+ * Copyright (C) 2012 Texas Instruments
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include "common.h"
+#include "prm2xxx.h"
+
+/*
+ * reset_virt_prcm_set_ck, reset_sys_ck: pointers to the virt_prcm_set
+ * clock and the sys_ck. Used during the reset process
+ */
+static struct clk *reset_virt_prcm_set_ck, *reset_sys_ck;
+
+/* Reboot handling */
+
+/**
+ * omap2xxx_restart - Set DPLL to bypass mode for reboot to work
+ *
+ * Set the DPLL to bypass so that reboot completes successfully. No
+ * return value.
+ */
+void omap2xxx_restart(char mode, const char *cmd)
+{
+ u32 rate;
+
+ rate = clk_get_rate(reset_sys_ck);
+ clk_set_rate(reset_virt_prcm_set_ck, rate);
+
+ /* XXX Should save the cmd argument for use after the reboot */
+
+ omap2xxx_prm_dpll_reset(); /* never returns */
+ while (1);
+}
+
+/**
+ * omap2xxx_common_look_up_clks_for_reset - look up clocks needed for restart
+ *
+ * Some clocks need to be looked up in advance for the SoC restart
+ * operation to work - see omap2xxx_restart(). Returns -EINVAL upon
+ * error or 0 upon success.
+ */
+static int __init omap2xxx_common_look_up_clks_for_reset(void)
+{
+ reset_virt_prcm_set_ck = clk_get(NULL, "virt_prcm_set");
+ if (IS_ERR(reset_virt_prcm_set_ck))
+ return -EINVAL;
+
+ reset_sys_ck = clk_get(NULL, "sys_ck");
+ if (IS_ERR(reset_sys_ck))
+ return -EINVAL;
+
+ return 0;
+}
+core_initcall(omap2xxx_common_look_up_clks_for_reset);
diff --git a/arch/arm/mach-omap2/omap3-restart.c b/arch/arm/mach-omap2/omap3-restart.c
new file mode 100644
index 00000000000..923c582189e
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3-restart.c
@@ -0,0 +1,36 @@
+/*
+ * omap3-restart.c - Code common to all OMAP3xxx machines.
+ *
+ * Copyright (C) 2009, 2012 Texas Instruments
+ * Copyright (C) 2010 Nokia Corporation
+ * Tony Lindgren <tony@atomide.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include "iomap.h"
+#include "common.h"
+#include "control.h"
+#include "prm3xxx.h"
+
+/* Global address base setup code */
+
+/**
+ * omap3xxx_restart - trigger a software restart of the SoC
+ * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
+ * @cmd: passed from the userspace program rebooting the system (if provided)
+ *
+ * Resets the SoC. For @cmd, see the 'reboot' syscall in
+ * kernel/sys.c. No return value.
+ */
+void omap3xxx_restart(char mode, const char *cmd)
+{
+ omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
+ omap3xxx_prm_dpll3_reset(); /* never returns */
+ while (1);
+}
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index d25845c471d..64fce07a3cc 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -29,9 +29,12 @@
#include "omap-wakeupgen.h"
#include "soc.h"
+#include "iomap.h"
#include "common.h"
#include "mmc.h"
#include "hsmmc.h"
+#include "prminst44xx.h"
+#include "prcm_mpu44xx.h"
#include "omap4-sar-layout.h"
#include "omap-secure.h"
@@ -280,3 +283,19 @@ int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
return 0;
}
#endif
+
+/**
+ * omap44xx_restart - trigger a software restart of the SoC
+ * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
+ * @cmd: passed from the userspace program rebooting the system (if provided)
+ *
+ * Resets the SoC. For @cmd, see the 'reboot' syscall in
+ * kernel/sys.c. No return value.
+ */
+void omap44xx_restart(char mode, const char *cmd)
+{
+ /* XXX Should save 'cmd' into scratchpad for use after reboot */
+ omap4_prminst_global_warm_sw_reset(); /* never returns */
+ while (1);
+}
+
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 37eeb45612f..139adca3bda 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -141,7 +141,6 @@
#include "clock.h"
#include "omap_hwmod.h"
-#include <plat/prcm.h>
#include "soc.h"
#include "common.h"
@@ -151,6 +150,7 @@
#include "cm3xxx.h"
#include "cminst44xx.h"
#include "cm33xx.h"
+#include "prm.h"
#include "prm3xxx.h"
#include "prm44xx.h"
#include "prm33xx.h"
@@ -158,9 +158,6 @@
#include "mux.h"
#include "pm.h"
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
/* Name of the OMAP hwmod for the MPU */
#define MPU_INITIATOR_NAME "mpu"
@@ -2064,7 +2061,8 @@ static int _enable(struct omap_hwmod *oh)
_enable_sysc(oh);
}
} else {
- _omap4_disable_module(oh);
+ if (soc_ops.disable_module)
+ soc_ops.disable_module(oh);
_disable_clocks(oh);
pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n",
oh->name, r);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 2f1ad87c1bb..aa701d76efd 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -37,7 +37,6 @@
#include "clockdomain.h"
#include "powerdomain.h"
-#include <plat/prcm.h>
#include <plat-omap/dma-omap.h>
#include "../plat-omap/sram.h"
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 1678a328423..dea62a9aad0 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -29,8 +29,6 @@
#include <asm/cpu.h>
-#include <plat/prcm.h>
-
#include "powerdomain.h"
#include "clockdomain.h"
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 72df97482cc..c7d355fafd2 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -406,11 +406,6 @@
#define OMAP3430_EN_CORE_MASK (1 << 0)
-/*
- * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
- * submodule to exit hardreset
- */
-#define MAX_MODULE_HARDRESET_WAIT 10000
/*
* Maximum time(us) it takes to output the signal WUCLKOUT of the last
@@ -419,24 +414,7 @@
* microseconds on OMAP4, so this timeout may be too high.
*/
#define MAX_IOPAD_LATCH_TIME 100
-
# ifndef __ASSEMBLER__
-extern void __iomem *prm_base;
-extern void __iomem *cm_base;
-extern void __iomem *cm2_base;
-extern void __iomem *prcm_mpu_base;
-
-#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
-extern void omap_prm_base_init(void);
-extern void omap_cm_base_init(void);
-#else
-static inline void omap_prm_base_init(void)
-{
-}
-static inline void omap_cm_base_init(void)
-{
-}
-#endif
/**
* struct omap_prcm_irq - describes a PRCM interrupt bit
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
deleted file mode 100644
index cff270a178c..00000000000
--- a/arch/arm/mach-omap2/prcm.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * linux/arch/arm/mach-omap2/prcm.c
- *
- * OMAP 24xx Power Reset and Clock Management (PRCM) functions
- *
- * Copyright (C) 2005 Nokia Corporation
- *
- * Written by Tony Lindgren <tony.lindgren@nokia.com>
- *
- * Copyright (C) 2007 Texas Instruments, Inc.
- * Rajendra Nayak <rnayak@ti.com>
- *
- * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
- * Upgraded with OMAP4 support by Abhijit Pagare <abhijitpagare@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-
-#include "common.h"
-#include <plat/prcm.h>
-
-#include "soc.h"
-#include "clock.h"
-#include "clock2xxx.h"
-#include "cm2xxx_3xxx.h"
-#include "prm2xxx_3xxx.h"
-#include "prm44xx.h"
-#include "prminst44xx.h"
-#include "cminst44xx.h"
-#include "prm-regbits-24xx.h"
-#include "prm-regbits-44xx.h"
-#include "control.h"
-
-void __iomem *prm_base;
-void __iomem *cm_base;
-void __iomem *cm2_base;
-void __iomem *prcm_mpu_base;
-
-#define MAX_MODULE_ENABLE_WAIT 100000
-
-u32 omap_prcm_get_reset_sources(void)
-{
- /* XXX This presumably needs modification for 34XX */
- if (cpu_is_omap24xx() || cpu_is_omap34xx())
- return omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
- if (cpu_is_omap44xx())
- return omap2_prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
-
- return 0;
-}
-EXPORT_SYMBOL(omap_prcm_get_reset_sources);
-
-/* Resets clock rates and reboots the system. Only called from system.h */
-void omap_prcm_restart(char mode, const char *cmd)
-{
- s16 prcm_offs = 0;
-
- if (cpu_is_omap24xx()) {
- omap2xxx_clk_prepare_for_reboot();
-
- prcm_offs = WKUP_MOD;
- } else if (cpu_is_omap34xx()) {
- prcm_offs = OMAP3430_GR_MOD;
- omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
- } else if (cpu_is_omap44xx()) {
- omap4_prminst_global_warm_sw_reset(); /* never returns */
- } else {
- WARN_ON(1);
- }
-
- /*
- * As per Errata i520, in some cases, user will not be able to
- * access DDR memory after warm-reset.
- * This situation occurs while the warm-reset happens during a read
- * access to DDR memory. In that particular condition, DDR memory
- * does not respond to a corrupted read command due to the warm
- * reset occurrence but SDRC is waiting for read completion.
- * SDRC is not sensitive to the warm reset, but the interconnect is
- * reset on the fly, thus causing a misalignment between SDRC logic,
- * interconnect logic and DDR memory state.
- * WORKAROUND:
- * Steps to perform before a Warm reset is trigged:
- * 1. enable self-refresh on idle request
- * 2. put SDRC in idle
- * 3. wait until SDRC goes to idle
- * 4. generate SW reset (Global SW reset)
- *
- * Steps to be performed after warm reset occurs (in bootloader):
- * if HW warm reset is the source, apply below steps before any
- * accesses to SDRAM:
- * 1. Reset SMS and SDRC and wait till reset is complete
- * 2. Re-initialize SMS, SDRC and memory
- *
- * NOTE: Above work around is required only if arch reset is implemented
- * using Global SW reset(GLOBAL_SW_RST). DPLL3 reset does not need
- * the WA since it resets SDRC as well as part of cold reset.
- */
-
- /* XXX should be moved to some OMAP2/3 specific code */
- omap2_prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, prcm_offs,
- OMAP2_RM_RSTCTRL);
- omap2_prm_read_mod_reg(prcm_offs, OMAP2_RM_RSTCTRL); /* OCP barrier */
-}
-
-/**
- * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness
- * @reg: physical address of module IDLEST register
- * @mask: value to mask against to determine if the module is active
- * @idlest: idle state indicator (0 or 1) for the clock
- * @name: name of the clock (for printk)
- *
- * Returns 1 if the module indicated readiness in time, or 0 if it
- * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds.
- *
- * XXX This function is deprecated. It should be removed once the
- * hwmod conversion is complete.
- */
-int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
- const char *name)
-{
- int i = 0;
- int ena = 0;
-
- if (idlest)
- ena = 0;
- else
- ena = mask;
-
- /* Wait for lock */
- omap_test_timeout(((__raw_readl(reg) & mask) == ena),
- MAX_MODULE_ENABLE_WAIT, i);
-
- if (i < MAX_MODULE_ENABLE_WAIT)
- pr_debug("cm: Module associated with clock %s ready after %d loops\n",
- name, i);
- else
- pr_err("cm: Module associated with clock %s didn't enable in %d tries\n",
- name, MAX_MODULE_ENABLE_WAIT);
-
- return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0;
-};
-
-void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals)
-{
- if (omap2_globals->prm)
- prm_base = omap2_globals->prm;
- if (omap2_globals->cm)
- cm_base = omap2_globals->cm;
- if (omap2_globals->cm2)
- cm2_base = omap2_globals->cm2;
- if (omap2_globals->prcm_mpu)
- prcm_mpu_base = omap2_globals->prcm_mpu;
-
- if (cpu_is_omap44xx() || soc_is_omap54xx()) {
- omap_prm_base_init();
- omap_cm_base_init();
- }
-}
-
-/*
- * Stubbed functions so that common files continue to build when
- * custom builds are used
- * XXX These are temporary and should be removed at the earliest possible
- * opportunity
- */
-int __weak omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs,
- u16 clkctrl_offs)
-{
- return 0;
-}
-
-void __weak omap4_cminst_module_enable(u8 mode, u8 part, u16 inst,
- s16 cdoffs, u16 clkctrl_offs)
-{
-}
-
-void __weak omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs,
- u16 clkctrl_offs)
-{
-}
diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.c b/arch/arm/mach-omap2/prcm_mpu44xx.c
index 928dbd4f20e..c30e44a7fab 100644
--- a/arch/arm/mach-omap2/prcm_mpu44xx.c
+++ b/arch/arm/mach-omap2/prcm_mpu44xx.c
@@ -20,6 +20,12 @@
#include "prcm_mpu44xx.h"
#include "cm-regbits-44xx.h"
+/*
+ * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP
+ * block registers
+ */
+void __iomem *prcm_mpu_base;
+
/* PRCM_MPU low-level functions */
u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg)
@@ -43,3 +49,14 @@ u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
return v;
}
+
+/**
+ * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use)
+ * @prcm_mpu: PRCM_MPU base virtual address
+ *
+ * XXX Will be replaced when the PRM/CM drivers are completed.
+ */
+void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu)
+{
+ prcm_mpu_base = prcm_mpu;
+}
diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.h b/arch/arm/mach-omap2/prcm_mpu44xx.h
index 8a6e250f04b..884af7bb4af 100644
--- a/arch/arm/mach-omap2/prcm_mpu44xx.h
+++ b/arch/arm/mach-omap2/prcm_mpu44xx.h
@@ -1,7 +1,7 @@
/*
* OMAP44xx PRCM MPU instance offset macros
*
- * Copyright (C) 2010 Texas Instruments, Inc.
+ * Copyright (C) 2010, 2012 Texas Instruments, Inc.
* Copyright (C) 2010 Nokia Corporation
*
* Paul Walmsley (paul@pwsan.com)
@@ -25,6 +25,12 @@
#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_MPU44XX_H
#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU44XX_H
+#include "common.h"
+
+# ifndef __ASSEMBLER__
+extern void __iomem *prcm_mpu_base;
+# endif
+
#define OMAP4430_PRCM_MPU_BASE 0x48243000
#define OMAP44XX_PRCM_MPU_REGADDR(inst, reg) \
@@ -98,6 +104,7 @@ extern u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 idx);
extern void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 idx);
extern u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst,
s16 idx);
+extern void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu);
# endif
#endif
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index c30ab5de8d1..a1a266ce90d 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -1,7 +1,7 @@
/*
* OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions
*
- * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2010 Nokia Corporation
*
* Paul Walmsley
@@ -15,6 +15,28 @@
#include "prcm-common.h"
+# ifndef __ASSEMBLER__
+extern void __iomem *prm_base;
+extern void omap2_set_globals_prm(void __iomem *prm);
+# endif
+
+
+/*
+ * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
+ * module to softreset
+ */
+#define MAX_MODULE_SOFTRESET_WAIT 10000
+
+/*
+ * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
+ * submodule to exit hardreset
+ */
+#define MAX_MODULE_HARDRESET_WAIT 10000
+
+/*
+ * Register bitfields
+ */
+
/*
* 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
*
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index e2860f9c111..bf24fc47603 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -20,7 +20,6 @@
#include "common.h"
#include <plat/cpu.h>
-#include <plat/prcm.h>
#include "vp.h"
#include "powerdomain.h"
@@ -69,6 +68,20 @@ static u32 omap2xxx_prm_read_reset_sources(void)
return r;
}
+/**
+ * omap2xxx_prm_dpll_reset - use DPLL reset to reboot the OMAP SoC
+ *
+ * Set the DPLL reset bit, which should reboot the SoC. This is the
+ * recommended way to restart the SoC. No return value.
+ */
+void omap2xxx_prm_dpll_reset(void)
+{
+ omap2_prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, WKUP_MOD,
+ OMAP2_RM_RSTCTRL);
+ /* OCP barrier */
+ omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTCTRL);
+}
+
int omap2xxx_clkdm_sleep(struct clockdomain *clkdm)
{
omap2_prm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h
index 1d97112524f..fe8a14f190a 100644
--- a/arch/arm/mach-omap2/prm2xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx.h
@@ -124,6 +124,8 @@
extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
+extern void omap2xxx_prm_dpll_reset(void);
+
extern int __init prm2xxx_init(void);
extern int __exit prm2xxx_exit(void);
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h
index 3330b1bf789..78532d6fecd 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h
@@ -241,11 +241,4 @@ extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm);
#define OMAP_LOGICRETSTATE_MASK (1 << 2)
-/*
- * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
- * submodule to exit hardreset
- */
-#define MAX_MODULE_HARDRESET_WAIT 10000
-
-
#endif
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 1fea656b2ca..b86116cf0db 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -20,7 +20,6 @@
#include "common.h"
#include <plat/cpu.h>
-#include <plat/prcm.h>
#include "vp.h"
#include "powerdomain.h"
@@ -123,6 +122,21 @@ u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset)
}
/**
+ * omap3xxx_prm_dpll3_reset - use DPLL3 reset to reboot the OMAP SoC
+ *
+ * Set the DPLL3 reset bit, which should reboot the SoC. This is the
+ * recommended way to restart the SoC, considering Errata i520. No
+ * return value.
+ */
+void omap3xxx_prm_dpll3_reset(void)
+{
+ omap2_prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, OMAP3430_GR_MOD,
+ OMAP2_RM_RSTCTRL);
+ /* OCP barrier */
+ omap2_prm_read_mod_reg(OMAP3430_GR_MOD, OMAP2_RM_RSTCTRL);
+}
+
+/**
* omap3xxx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events
* @events: ptr to a u32, preallocated by caller
*
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index a3c28a87541..10cd41a8129 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -152,6 +152,8 @@ extern void omap3xxx_prm_ocp_barrier(void);
extern void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask);
extern void omap3xxx_prm_restore_irqen(u32 *saved_mask);
+extern void omap3xxx_prm_dpll3_reset(void);
+
extern u32 omap3xxx_prm_get_reset_sources(void);
#endif /* __ASSEMBLER */
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index a799e9552fb..6d3467af205 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -18,7 +18,6 @@
#include <linux/err.h>
#include <linux/io.h>
-#include <plat/prcm.h>
#include "soc.h"
#include "iomap.h"
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 6c595798c5c..d2e0798a4c8 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -25,12 +25,12 @@
#include <linux/slab.h>
#include "../plat-omap/common.h"
-#include <plat/prcm.h>
#include "prm2xxx_3xxx.h"
#include "prm2xxx.h"
#include "prm3xxx.h"
#include "prm44xx.h"
+#include "common.h"
/*
* OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs
@@ -55,6 +55,9 @@ static struct irq_chip_generic **prcm_irq_chips;
*/
static struct omap_prcm_irq_setup *prcm_irq_setup;
+/* prm_base: base virtual address of the PRM IP block */
+void __iomem *prm_base;
+
/*
* prm_ll_data: function pointers to SoC-specific implementations of
* common PRM functions
@@ -329,6 +332,17 @@ err:
}
/**
+ * omap2_set_globals_prm - set the PRM base address (for early use)
+ * @prm: PRM base virtual address
+ *
+ * XXX Will be replaced when the PRM/CM drivers are completed.
+ */
+void __init omap2_set_globals_prm(void __iomem *prm)
+{
+ prm_base = prm;
+}
+
+/**
* prm_read_reset_sources - return the sources of the SoC's last reset
*
* Return a u32 bitmask representing the reset sources that caused the
diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h
index 46f2efb3659..a2ede2d6548 100644
--- a/arch/arm/mach-omap2/prminst44xx.h
+++ b/arch/arm/mach-omap2/prminst44xx.h
@@ -30,4 +30,6 @@ extern int omap4_prminst_assert_hardreset(u8 shift, u8 part, s16 inst,
extern int omap4_prminst_deassert_hardreset(u8 shift, u8 part, s16 inst,
u16 rstctrl_offs);
+extern void omap_prm_base_init(void);
+
#endif
diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c
index 94d4082f87e..3ed0d62333c 100644
--- a/arch/arm/mach-omap2/sdrc.c
+++ b/arch/arm/mach-omap2/sdrc.c
@@ -114,12 +114,10 @@ int omap2_sdrc_get_params(unsigned long r,
}
-void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
+void __init omap2_set_globals_sdrc(void __iomem *sdrc, void __iomem *sms)
{
- if (omap2_globals->sdrc)
- omap2_sdrc_base = omap2_globals->sdrc;
- if (omap2_globals->sms)
- omap2_sms_base = omap2_globals->sms;
+ omap2_sdrc_base = sdrc;
+ omap2_sms_base = sms;
}
/**
diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h
index 69c4b329452..446aa13511f 100644
--- a/arch/arm/mach-omap2/sdrc.h
+++ b/arch/arm/mach-omap2/sdrc.h
@@ -51,6 +51,8 @@ static inline u32 sms_read_reg(u16 reg)
return __raw_readl(OMAP_SMS_REGADDR(reg));
}
+extern void omap2_set_globals_sdrc(void __iomem *sdrc, void __iomem *sms);
+
/**
* struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate
diff --git a/arch/arm/mach-omap2/ti81xx.h b/arch/arm/mach-omap2/ti81xx.h
index 8f9843f7842..a1e6caf0dba 100644
--- a/arch/arm/mach-omap2/ti81xx.h
+++ b/arch/arm/mach-omap2/ti81xx.h
@@ -22,6 +22,15 @@
#define TI81XX_CTRL_BASE TI81XX_SCM_BASE
#define TI81XX_PRCM_BASE 0x48180000
+/*
+ * Adjust TAP register base such that omap3_check_revision accesses the correct
+ * TI81XX register for checking device ID (it adds 0x204 to tap base while
+ * TI81XX DEVICE ID register is at offset 0x600 from control base).
+ */
+#define TI81XX_TAP_BASE (TI81XX_CTRL_BASE + \
+ TI81XX_CONTROL_DEVICE_ID - 0x204)
+
+
#define TI81XX_ARM_INTC_BASE 0x48200000
#endif /* __ASM_ARCH_TI81XX_H */
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index f6b6c37ac3f..7c2b4ed38f0 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -1,6 +1,8 @@
/*
* OMAP2+ MPU WD_TIMER-specific code
*
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -11,10 +13,14 @@
#include <linux/io.h>
#include <linux/err.h>
-#include "omap_hwmod.h"
+#include <linux/platform_data/omap-wd-timer.h>
+#include "omap_hwmod.h"
+#include "omap_device.h"
#include "wd_timer.h"
#include "common.h"
+#include "prm.h"
+#include "soc.h"
/*
* In order to avoid any assumptions from bootloader regarding WDT
@@ -26,9 +32,6 @@
#define OMAP_WDT_WPS 0x34
#define OMAP_WDT_SPR 0x48
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
int omap2_wd_timer_disable(struct omap_hwmod *oh)
{
void __iomem *base;
@@ -99,3 +102,32 @@ int omap2_wd_timer_reset(struct omap_hwmod *oh)
return (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT :
omap2_wd_timer_disable(oh);
}
+
+static int __init omap_init_wdt(void)
+{
+ int id = -1;
+ struct platform_device *pdev;
+ struct omap_hwmod *oh;
+ char *oh_name = "wd_timer2";
+ char *dev_name = "omap_wdt";
+ struct omap_wd_timer_platform_data pdata;
+
+ if (!cpu_class_is_omap2() || of_have_populated_dt())
+ return 0;
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up wd_timer%d hwmod\n", id);
+ return -EINVAL;
+ }
+
+ pdata.read_reset_sources = prm_read_reset_sources;
+
+ pdev = omap_device_build(dev_name, id, oh, &pdata,
+ sizeof(struct omap_wd_timer_platform_data),
+ NULL, 0, 0);
+ WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
+ dev_name, oh->name);
+ return 0;
+}
+subsys_initcall(omap_init_wdt);
diff --git a/arch/arm/plat-omap/include/plat/prcm.h b/arch/arm/plat-omap/include/plat/prcm.h
deleted file mode 100644
index 267f43bb2a4..00000000000
--- a/arch/arm/plat-omap/include/plat/prcm.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * arch/arm/plat-omap/include/mach/prcm.h
- *
- * Access definations for use in OMAP24XX clock and power management
- *
- * Copyright (C) 2005 Texas Instruments, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * XXX This file is deprecated. The PRCM is an OMAP2+-only subsystem,
- * so this file doesn't belong in plat-omap/include/plat. Please
- * do not add anything new to this file.
- */
-
-#ifndef __ASM_ARM_ARCH_OMAP_PRCM_H
-#define __ASM_ARM_ARCH_OMAP_PRCM_H
-
-u32 omap_prcm_get_reset_sources(void);
-int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
- const char *name);
-
-#endif
-
-
-
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index f5db18dbc0f..477a1d47a64 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -46,8 +46,8 @@
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <mach/hardware.h>
-#include <plat/cpu.h>
-#include <plat/prcm.h>
+
+#include <linux/platform_data/omap-wd-timer.h>
#include "omap_wdt.h"
@@ -202,8 +202,10 @@ static ssize_t omap_wdt_write(struct file *file, const char __user *data,
static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
+ struct omap_wd_timer_platform_data *pdata;
struct omap_wdt_dev *wdev;
- int new_margin;
+ u32 rs;
+ int new_margin, bs;
static const struct watchdog_info ident = {
.identity = "OMAP Watchdog",
.options = WDIOF_SETTIMEOUT,
@@ -211,6 +213,7 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
};
wdev = file->private_data;
+ pdata = wdev->dev->platform_data;
switch (cmd) {
case WDIOC_GETSUPPORT:
@@ -219,17 +222,12 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
case WDIOC_GETSTATUS:
return put_user(0, (int __user *)arg);
case WDIOC_GETBOOTSTATUS:
-#ifdef CONFIG_ARCH_OMAP1
- if (cpu_is_omap16xx())
- return put_user(__raw_readw(ARM_SYSST),
- (int __user *)arg);
-#endif
-#ifdef CONFIG_ARCH_OMAP2PLUS
- if (cpu_is_omap24xx())
- return put_user(omap_prcm_get_reset_sources(),
- (int __user *)arg);
-#endif
- return put_user(0, (int __user *)arg);
+ if (!pdata || !pdata->read_reset_sources)
+ return put_user(0, (int __user *)arg);
+ rs = pdata->read_reset_sources();
+ bs = (rs & (1 << OMAP_MPU_WD_RST_SRC_ID_SHIFT)) ?
+ WDIOF_CARDRESET : 0;
+ return put_user(bs, (int __user *)arg);
case WDIOC_KEEPALIVE:
spin_lock(&wdt_lock);
omap_wdt_ping(wdev);
diff --git a/include/linux/platform_data/omap-wd-timer.h b/include/linux/platform_data/omap-wd-timer.h
new file mode 100644
index 00000000000..d75f5f802d9
--- /dev/null
+++ b/include/linux/platform_data/omap-wd-timer.h
@@ -0,0 +1,38 @@
+/*
+ * OMAP2+ WDTIMER-specific function prototypes
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
+#define __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
+
+#include <linux/types.h>
+
+/*
+ * Standardized OMAP reset source bits
+ *
+ * This is a subset of the ones listed in arch/arm/mach-omap2/prm.h
+ * and are the only ones needed in the watchdog driver.
+ */
+#define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3
+
+/**
+ * struct omap_wd_timer_platform_data - WDTIMER integration to the host SoC
+ * @read_reset_sources - fn ptr for the SoC to indicate the last reset cause
+ *
+ * The function pointed to by @read_reset_sources must return its data
+ * in a standard format - search for RST_SRC_ID_SHIFT in
+ * arch/arm/mach-omap2
+ */
+struct omap_wd_timer_platform_data {
+ u32 (*read_reset_sources)(void);
+};
+
+#endif