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-rw-r--r--arch/arm/Kconfig138
-rw-r--r--arch/arm/Makefile115
-rw-r--r--arch/arm/include/asm/pgtable.h2
-rw-r--r--arch/arm/mach-at91/clock.c151
-rw-r--r--arch/arm/mach-at91/include/mach/at91_pmc.h26
-rw-r--r--arch/arm/mach-ep93xx/core.c15
-rw-r--r--arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h1
-rw-r--r--drivers/rtc/rtc-ep93xx.c149
8 files changed, 387 insertions, 210 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index be680f3cdf0..c52f6909f65 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -253,6 +253,14 @@ config ARCH_CLPS711X
help
Support for Cirrus Logic 711x/721x based boards.
+config ARCH_GEMINI
+ bool "Cortina Systems Gemini"
+ select CPU_FA526
+ select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ help
+ Support for the Cortina Systems Gemini family SoCs
+
config ARCH_EBSA110
bool "EBSA-110"
select CPU_SA110
@@ -276,14 +284,6 @@ config ARCH_EP93XX
help
This enables support for the Cirrus EP93xx series of CPUs.
-config ARCH_GEMINI
- bool "Cortina Systems Gemini"
- select CPU_FA526
- select GENERIC_GPIO
- select ARCH_REQUIRE_GPIOLIB
- help
- Support for the Cortina Systems Gemini family SoCs
-
config ARCH_FOOTBRIDGE
bool "FootBridge"
select CPU_SA110
@@ -292,6 +292,17 @@ config ARCH_FOOTBRIDGE
Support for systems based on the DC21285 companion chip
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
+config ARCH_MXC
+ bool "Freescale MXC/iMX-based"
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+ select ARCH_MTD_XIP
+ select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ select HAVE_CLK
+ help
+ Support for Freescale MXC/iMX-based family of processors
+
config ARCH_NETX
bool "Hilscher NetX based"
select CPU_ARM926T
@@ -395,28 +406,6 @@ config ARCH_KIRKWOOD
Support for the following Marvell Kirkwood series SoCs:
88F6180, 88F6192 and 88F6281.
-config ARCH_KS8695
- bool "Micrel/Kendin KS8695"
- select CPU_ARM922T
- select GENERIC_GPIO
- select ARCH_REQUIRE_GPIOLIB
- help
- Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
- System-on-Chip devices.
-
-config ARCH_NS9XXX
- bool "NetSilicon NS9xxx"
- select CPU_ARM926T
- select GENERIC_GPIO
- select GENERIC_TIME
- select GENERIC_CLOCKEVENTS
- select HAVE_CLK
- help
- Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
- System.
-
- <http://www.digi.com/products/microprocessors/index.jsp>
-
config ARCH_LOKI
bool "Marvell Loki (88RC8480)"
select CPU_FEROCEON
@@ -438,17 +427,6 @@ config ARCH_MV78XX0
Support for the following Marvell MV78xx0 series SoCs:
MV781x0, MV782x0.
-config ARCH_MXC
- bool "Freescale MXC/iMX-based"
- select GENERIC_TIME
- select GENERIC_CLOCKEVENTS
- select ARCH_MTD_XIP
- select GENERIC_GPIO
- select ARCH_REQUIRE_GPIOLIB
- select HAVE_CLK
- help
- Support for Freescale MXC/iMX-based family of processors
-
config ARCH_ORION5X
bool "Marvell Orion"
depends on MMU
@@ -463,6 +441,49 @@ config ARCH_ORION5X
Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Orion-2 (5281), Orion-1-90 (6183).
+config ARCH_MMP
+ bool "Marvell PXA168/910"
+ depends on MMU
+ select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ select HAVE_CLK
+ select COMMON_CLKDEV
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+ select TICK_ONESHOT
+ select PLAT_PXA
+ help
+ Support for Marvell's PXA168/910 processor line.
+
+config ARCH_KS8695
+ bool "Micrel/Kendin KS8695"
+ select CPU_ARM922T
+ select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ help
+ Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
+ System-on-Chip devices.
+
+config ARCH_NS9XXX
+ bool "NetSilicon NS9xxx"
+ select CPU_ARM926T
+ select GENERIC_GPIO
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
+ help
+ Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
+ System.
+
+ <http://www.digi.com/products/microprocessors/index.jsp>
+
+config ARCH_W90X900
+ bool "Nuvoton W90X900 CPU"
+ select CPU_ARM926T
+ help
+ Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
+ can login www.mcuos.com or www.nuvoton.com to know more.
+
config ARCH_PNX4008
bool "Philips Nexperia PNX4008 Mobile"
select CPU_ARM926T
@@ -485,19 +506,16 @@ config ARCH_PXA
help
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
-config ARCH_MMP
- bool "Marvell PXA168/910"
- depends on MMU
- select GENERIC_GPIO
- select ARCH_REQUIRE_GPIOLIB
- select HAVE_CLK
- select COMMON_CLKDEV
+config ARCH_MSM
+ bool "Qualcomm MSM"
+ select CPU_V6
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
- select TICK_ONESHOT
- select PLAT_PXA
help
- Support for Marvell's PXA168/910 processor line.
+ Support for Qualcomm MSM7K based systems. This runs on the ARM11
+ apps processor of the MSM7K and depends on a shared memory
+ interface to the ARM9 modem processor which runs the baseband stack
+ and controls some vital subsystems (clock and power control, etc).
config ARCH_RPC
bool "RiscPC"
@@ -590,24 +608,6 @@ config ARCH_OMAP
help
Support for TI's OMAP platform (OMAP1 and OMAP2).
-config ARCH_MSM
- bool "Qualcomm MSM"
- select CPU_V6
- select GENERIC_TIME
- select GENERIC_CLOCKEVENTS
- help
- Support for Qualcomm MSM7K based systems. This runs on the ARM11
- apps processor of the MSM7K and depends on a shared memory
- interface to the ARM9 modem processor which runs the baseband stack
- and controls some vital subsystems (clock and power control, etc).
-
-config ARCH_W90X900
- bool "Nuvoton W90X900 CPU"
- select CPU_ARM926T
- help
- Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
- can login www.mcuos.com or www.nuvoton.com to know more.
-
endchoice
source "arch/arm/mach-clps711x/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 921a627edb5..b6b9f6ee467 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -99,63 +99,68 @@ CHECKFLAGS += -D__arm__
#Default value
head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
textofs-y := 0x00008000
-
- machine-$(CONFIG_ARCH_RPC) := rpc
- machine-$(CONFIG_ARCH_EBSA110) := ebsa110
- machine-$(CONFIG_FOOTBRIDGE) := footbridge
- machine-$(CONFIG_ARCH_SHARK) := shark
- machine-$(CONFIG_ARCH_SA1100) := sa1100
-ifeq ($(CONFIG_ARCH_SA1100),y)
+textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
- textofs-$(CONFIG_SA1111) := 0x00208000
+ifeq ($(CONFIG_ARCH_SA1100),y)
+textofs-$(CONFIG_SA1111) := 0x00208000
endif
- machine-$(CONFIG_ARCH_PXA) := pxa
- machine-$(CONFIG_ARCH_MMP) := mmp
- plat-$(CONFIG_PLAT_PXA) := pxa
- machine-$(CONFIG_ARCH_L7200) := l7200
- machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
- machine-$(CONFIG_ARCH_GEMINI) := gemini
- textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
- machine-$(CONFIG_ARCH_CLPS711X) := clps711x
- machine-$(CONFIG_ARCH_IOP32X) := iop32x
- machine-$(CONFIG_ARCH_IOP33X) := iop33x
- machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
- plat-$(CONFIG_PLAT_IOP) := iop
- machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
- machine-$(CONFIG_ARCH_IXP2000) := ixp2000
- machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
- machine-$(CONFIG_ARCH_OMAP1) := omap1
- machine-$(CONFIG_ARCH_OMAP2) := omap2
- machine-$(CONFIG_ARCH_OMAP3) := omap2
- plat-$(CONFIG_ARCH_OMAP) := omap
- machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
- machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
- plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c
- machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410
- plat-$(CONFIG_PLAT_S3C64XX) := s3c64xx s3c
- machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
- machine-$(CONFIG_ARCH_VERSATILE) := versatile
- machine-$(CONFIG_ARCH_H720X) := h720x
- machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
- machine-$(CONFIG_ARCH_REALVIEW) := realview
- machine-$(CONFIG_ARCH_AT91) := at91
- machine-$(CONFIG_ARCH_EP93XX) := ep93xx
- machine-$(CONFIG_ARCH_PNX4008) := pnx4008
- machine-$(CONFIG_ARCH_NETX) := netx
- machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
- machine-$(CONFIG_ARCH_DAVINCI) := davinci
- machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
- machine-$(CONFIG_ARCH_KS8695) := ks8695
- plat-$(CONFIG_ARCH_MXC) := mxc
- machine-$(CONFIG_ARCH_MX2) := mx2
- machine-$(CONFIG_ARCH_MX3) := mx3
- machine-$(CONFIG_ARCH_MX1) := mx1
- machine-$(CONFIG_ARCH_ORION5X) := orion5x
- plat-$(CONFIG_PLAT_ORION) := orion
- machine-$(CONFIG_ARCH_MSM) := msm
- machine-$(CONFIG_ARCH_LOKI) := loki
- machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
- machine-$(CONFIG_ARCH_W90X900) := w90x900
+
+# Machine directory name. This list is sorted alphanumerically
+# by CONFIG_* macro name.
+machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
+machine-$(CONFIG_ARCH_AT91) := at91
+machine-$(CONFIG_ARCH_CLPS711X) := clps711x
+machine-$(CONFIG_ARCH_DAVINCI) := davinci
+machine-$(CONFIG_ARCH_EBSA110) := ebsa110
+machine-$(CONFIG_ARCH_EP93XX) := ep93xx
+machine-$(CONFIG_ARCH_GEMINI) := gemini
+machine-$(CONFIG_ARCH_H720X) := h720x
+machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
+machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
+machine-$(CONFIG_ARCH_IOP32X) := iop32x
+machine-$(CONFIG_ARCH_IOP33X) := iop33x
+machine-$(CONFIG_ARCH_IXP2000) := ixp2000
+machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
+machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
+machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
+machine-$(CONFIG_ARCH_KS8695) := ks8695
+machine-$(CONFIG_ARCH_L7200) := l7200
+machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
+machine-$(CONFIG_ARCH_LOKI) := loki
+machine-$(CONFIG_ARCH_MMP) := mmp
+machine-$(CONFIG_ARCH_MSM) := msm
+machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
+machine-$(CONFIG_ARCH_MX1) := mx1
+machine-$(CONFIG_ARCH_MX2) := mx2
+machine-$(CONFIG_ARCH_MX3) := mx3
+machine-$(CONFIG_ARCH_NETX) := netx
+machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
+machine-$(CONFIG_ARCH_OMAP1) := omap1
+machine-$(CONFIG_ARCH_OMAP2) := omap2
+machine-$(CONFIG_ARCH_OMAP3) := omap2
+machine-$(CONFIG_ARCH_ORION5X) := orion5x
+machine-$(CONFIG_ARCH_PNX4008) := pnx4008
+machine-$(CONFIG_ARCH_PXA) := pxa
+machine-$(CONFIG_ARCH_REALVIEW) := realview
+machine-$(CONFIG_ARCH_RPC) := rpc
+machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
+machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
+machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410
+machine-$(CONFIG_ARCH_SA1100) := sa1100
+machine-$(CONFIG_ARCH_SHARK) := shark
+machine-$(CONFIG_ARCH_VERSATILE) := versatile
+machine-$(CONFIG_ARCH_W90X900) := w90x900
+machine-$(CONFIG_FOOTBRIDGE) := footbridge
+
+# Platform directory name. This list is sorted alphanumerically
+# by CONFIG_* macro name.
+plat-$(CONFIG_ARCH_MXC) := mxc
+plat-$(CONFIG_ARCH_OMAP) := omap
+plat-$(CONFIG_PLAT_IOP) := iop
+plat-$(CONFIG_PLAT_ORION) := orion
+plat-$(CONFIG_PLAT_PXA) := pxa
+plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c
+plat-$(CONFIG_PLAT_S3C64XX) := s3c64xx s3c
ifeq ($(CONFIG_ARCH_EBSA110),y)
# This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 110295c5461..1cd2d6416bd 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -342,7 +342,7 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
return __va(ptr);
}
-#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd)))
+#define pmd_page(pmd) pfn_to_page(__phys_to_pfn(pmd_val(pmd)))
/*
* Conversion functions: convert a page and protection to a page entry,
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index e4345106ee5..bac578fe0d3 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -43,6 +43,25 @@
#define clk_is_sys(x) ((x)->type & CLK_TYPE_SYSTEM)
+/*
+ * Chips have some kind of clocks : group them by functionality
+ */
+#define cpu_has_utmi() ( cpu_is_at91cap9() \
+ || cpu_is_at91sam9rl())
+
+#define cpu_has_800M_plla() (cpu_is_at91sam9g20())
+
+#define cpu_has_pllb() (!cpu_is_at91sam9rl())
+
+#define cpu_has_upll() (0)
+
+/* USB host HS & FS */
+#define cpu_has_uhp() (!cpu_is_at91sam9rl())
+
+/* USB device FS only */
+#define cpu_has_udpfs() (!cpu_is_at91sam9rl())
+
+
static LIST_HEAD(clocks);
static DEFINE_SPINLOCK(clk_lock);
@@ -140,7 +159,7 @@ static struct clk utmi_clk = {
};
static struct clk uhpck = {
.name = "uhpck",
- .parent = &pllb,
+ /*.parent = ... we choose parent at runtime */
.mode = pmc_sys_mode,
};
@@ -173,7 +192,11 @@ static struct clk __init *at91_css_to_clk(unsigned long css)
case AT91_PMC_CSS_PLLA:
return &plla;
case AT91_PMC_CSS_PLLB:
- return &pllb;
+ if (cpu_has_upll())
+ /* CSS_PLLB == CSS_UPLL */
+ return &utmi_clk;
+ else if (cpu_has_pllb())
+ return &pllb;
}
return NULL;
@@ -322,7 +345,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
u32 pckr;
pckr = at91_sys_read(AT91_PMC_PCKR(clk->id));
- pckr &= AT91_PMC_CSS_PLLB; /* clock selection */
+ pckr &= AT91_PMC_CSS; /* clock selection */
pckr |= prescale << 2;
at91_sys_write(AT91_PMC_PCKR(clk->id), pckr);
clk->rate_hz = actual;
@@ -361,7 +384,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
}
EXPORT_SYMBOL(clk_set_parent);
-/* establish PCK0..PCK3 parentage and rate */
+/* establish PCK0..PCKN parentage and rate */
static void __init init_programmable_clock(struct clk *clk)
{
struct clk *parent;
@@ -389,11 +412,13 @@ static int at91_clk_show(struct seq_file *s, void *unused)
seq_printf(s, "MOR = %8x\n", at91_sys_read(AT91_CKGR_MOR));
seq_printf(s, "MCFR = %8x\n", at91_sys_read(AT91_CKGR_MCFR));
seq_printf(s, "PLLA = %8x\n", at91_sys_read(AT91_CKGR_PLLAR));
- if (!cpu_is_at91sam9rl())
+ if (cpu_has_pllb())
seq_printf(s, "PLLB = %8x\n", at91_sys_read(AT91_CKGR_PLLBR));
- if (cpu_is_at91cap9() || cpu_is_at91sam9rl())
+ if (cpu_has_utmi())
seq_printf(s, "UCKR = %8x\n", uckr = at91_sys_read(AT91_CKGR_UCKR));
seq_printf(s, "MCKR = %8x\n", at91_sys_read(AT91_PMC_MCKR));
+ if (cpu_has_upll())
+ seq_printf(s, "USB = %8x\n", at91_sys_read(AT91_PMC_USB));
seq_printf(s, "SR = %8x\n", sr = at91_sys_read(AT91_PMC_SR));
seq_printf(s, "\n");
@@ -554,16 +579,60 @@ static struct clk *const standard_pmc_clocks[] __initdata = {
&clk32k,
&main_clk,
&plla,
- &pllb,
-
- /* PLLB children (USB) */
- &udpck,
- &uhpck,
/* MCK */
&mck
};
+/* PLLB generated USB full speed clock init */
+static void __init at91_pllb_usbfs_clock_init(unsigned long main_clock)
+{
+ /*
+ * USB clock init: choose 48 MHz PLLB value,
+ * disable 48MHz clock during usb peripheral suspend.
+ *
+ * REVISIT: assumes MCK doesn't derive from PLLB!
+ */
+ uhpck.parent = &pllb;
+
+ at91_pllb_usb_init = at91_pll_calc(main_clock, 48000000 * 2) | AT91_PMC_USB96M;
+ pllb.rate_hz = at91_pll_rate(&pllb, main_clock, at91_pllb_usb_init);
+ if (cpu_is_at91rm9200()) {
+ uhpck.pmc_mask = AT91RM9200_PMC_UHP;
+ udpck.pmc_mask = AT91RM9200_PMC_UDP;
+ at91_sys_write(AT91_PMC_SCER, AT91RM9200_PMC_MCKUDP);
+ } else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263() || cpu_is_at91sam9g20()) {
+ uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
+ udpck.pmc_mask = AT91SAM926x_PMC_UDP;
+ } else if (cpu_is_at91cap9()) {
+ uhpck.pmc_mask = AT91CAP9_PMC_UHP;
+ }
+ at91_sys_write(AT91_CKGR_PLLBR, 0);
+
+ udpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
+ uhpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
+}
+
+/* UPLL generated USB full speed clock init */
+static void __init at91_upll_usbfs_clock_init(unsigned long main_clock)
+{
+ /*
+ * USB clock init: choose 480 MHz from UPLL,
+ */
+ unsigned int usbr = AT91_PMC_USBS_UPLL;
+
+ /* Setup divider by 10 to reach 48 MHz */
+ usbr |= ((10 - 1) << 8) & AT91_PMC_OHCIUSBDIV;
+
+ at91_sys_write(AT91_PMC_USB, usbr);
+
+ /* Now set uhpck values */
+ uhpck.parent = &utmi_clk;
+ uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
+ uhpck.rate_hz = utmi_clk.parent->rate_hz;
+ uhpck.rate_hz /= 1 + ((at91_sys_read(AT91_PMC_USB) & AT91_PMC_OHCIUSBDIV) >> 8);
+}
+
int __init at91_clock_init(unsigned long main_clock)
{
unsigned tmp, freq, mckr;
@@ -585,43 +654,37 @@ int __init at91_clock_init(unsigned long main_clock)
/* report if PLLA is more than mildly overclocked */
plla.rate_hz = at91_pll_rate(&plla, main_clock, at91_sys_read(AT91_CKGR_PLLAR));
- if ((!cpu_is_at91sam9g20() && plla.rate_hz > 209000000)
- || (cpu_is_at91sam9g20() && plla.rate_hz > 800000000))
+ if ((!cpu_has_800M_plla() && plla.rate_hz > 209000000)
+ || (cpu_has_800M_plla() && plla.rate_hz > 800000000))
pr_info("Clocks: PLLA overclocked, %ld MHz\n", plla.rate_hz / 1000000);
- /*
- * USB clock init: choose 48 MHz PLLB value,
- * disable 48MHz clock during usb peripheral suspend.
- *
- * REVISIT: assumes MCK doesn't derive from PLLB!
- */
- at91_pllb_usb_init = at91_pll_calc(main_clock, 48000000 * 2) | AT91_PMC_USB96M;
- pllb.rate_hz = at91_pll_rate(&pllb, main_clock, at91_pllb_usb_init);
- if (cpu_is_at91rm9200()) {
- uhpck.pmc_mask = AT91RM9200_PMC_UHP;
- udpck.pmc_mask = AT91RM9200_PMC_UDP;
- at91_sys_write(AT91_PMC_SCER, AT91RM9200_PMC_MCKUDP);
- } else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263() || cpu_is_at91sam9g20()) {
- uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
- udpck.pmc_mask = AT91SAM926x_PMC_UDP;
- } else if (cpu_is_at91cap9()) {
- uhpck.pmc_mask = AT91CAP9_PMC_UHP;
+
+ if (cpu_has_upll() && !cpu_has_pllb()) {
+ /* setup UTMI clock as the fourth primary clock
+ * (instead of pllb) */
+ utmi_clk.type |= CLK_TYPE_PRIMARY;
+ utmi_clk.id = 3;
}
- at91_sys_write(AT91_CKGR_PLLBR, 0);
- udpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
- uhpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
/*
* USB HS clock init
*/
- if (cpu_is_at91cap9() || cpu_is_at91sam9rl()) {
+ if (cpu_has_utmi())
/*
* multiplier is hard-wired to 40
* (obtain the USB High Speed 480 MHz when input is 12 MHz)
*/
utmi_clk.rate_hz = 40 * utmi_clk.parent->rate_hz;
- }
+
+ /*
+ * USB FS clock init
+ */
+ if (cpu_has_pllb())
+ at91_pllb_usbfs_clock_init(main_clock);
+ if (cpu_has_upll())
+ /* assumes that we choose UPLL for USB and not PLLA */
+ at91_upll_usbfs_clock_init(main_clock);
/*
* MCK and CPU derive from one of those primary clocks.
@@ -631,21 +694,31 @@ int __init at91_clock_init(unsigned long main_clock)
mck.parent = at91_css_to_clk(mckr & AT91_PMC_CSS);
freq = mck.parent->rate_hz;
freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */
- if (cpu_is_at91rm9200())
+ if (cpu_is_at91rm9200()) {
mck.rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */
- else if (cpu_is_at91sam9g20()) {
+ } else if (cpu_is_at91sam9g20()) {
mck.rate_hz = (mckr & AT91_PMC_MDIV) ?
freq / ((mckr & AT91_PMC_MDIV) >> 7) : freq; /* mdiv ; (x >> 7) = ((x >> 8) * 2) */
if (mckr & AT91_PMC_PDIV)
freq /= 2; /* processor clock division */
- } else
+ } else {
mck.rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */
+ }
/* Register the PMC's standard clocks */
for (i = 0; i < ARRAY_SIZE(standard_pmc_clocks); i++)
list_add_tail(&standard_pmc_clocks[i]->node, &clocks);
- if (cpu_is_at91cap9() || cpu_is_at91sam9rl())
+ if (cpu_has_pllb())
+ list_add_tail(&pllb.node, &clocks);
+
+ if (cpu_has_uhp())
+ list_add_tail(&uhpck.node, &clocks);
+
+ if (cpu_has_udpfs())
+ list_add_tail(&udpck.node, &clocks);
+
+ if (cpu_has_utmi())
list_add_tail(&utmi_clk.node, &clocks);
/* MCK and CPU clock are "always on" */
diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h
index 9561e33b8a9..64589eaaaee 100644
--- a/arch/arm/mach-at91/include/mach/at91_pmc.h
+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h
@@ -23,7 +23,7 @@
#define AT91_PMC_PCK (1 << 0) /* Processor Clock */
#define AT91RM9200_PMC_UDP (1 << 1) /* USB Devcice Port Clock [AT91RM9200 only] */
#define AT91RM9200_PMC_MCKUDP (1 << 2) /* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */
-#define AT91CAP9_PMC_DDR (1 << 2) /* DDR Clock [AT91CAP9 revC only] */
+#define AT91CAP9_PMC_DDR (1 << 2) /* DDR Clock [CAP9 revC & some SAM9 only] */
#define AT91RM9200_PMC_UHP (1 << 4) /* USB Host Port Clock [AT91RM9200 only] */
#define AT91SAM926x_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91SAM926x only] */
#define AT91CAP9_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91CAP9 only] */
@@ -39,11 +39,11 @@
#define AT91_PMC_PCDR (AT91_PMC + 0x14) /* Peripheral Clock Disable Register */
#define AT91_PMC_PCSR (AT91_PMC + 0x18) /* Peripheral Clock Status Register */
-#define AT91_CKGR_UCKR (AT91_PMC + 0x1C) /* UTMI Clock Register [SAM9RL, CAP9] */
+#define AT91_CKGR_UCKR (AT91_PMC + 0x1C) /* UTMI Clock Register [some SAM9, CAP9] */
#define AT91_PMC_UPLLEN (1 << 16) /* UTMI PLL Enable */
#define AT91_PMC_UPLLCOUNT (0xf << 20) /* UTMI PLL Start-up Time */
#define AT91_PMC_BIASEN (1 << 24) /* UTMI BIAS Enable */
-#define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI PLL Start-up Time */
+#define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI BIAS Start-up Time */
#define AT91_CKGR_MOR (AT91_PMC + 0x20) /* Main Oscillator Register [not on SAM9RL] */
#define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */
@@ -72,6 +72,7 @@
#define AT91_PMC_CSS_MAIN (1 << 0)
#define AT91_PMC_CSS_PLLA (2 << 0)
#define AT91_PMC_CSS_PLLB (3 << 0)
+#define AT91_PMC_CSS_UPLL (3 << 0) /* [some SAM9 only] */
#define AT91_PMC_PRES (7 << 2) /* Master Clock Prescaler */
#define AT91_PMC_PRES_1 (0 << 2)
#define AT91_PMC_PRES_2 (1 << 2)
@@ -88,12 +89,25 @@
#define AT91SAM9_PMC_MDIV_1 (0 << 8) /* [SAM9,CAP9 only] */
#define AT91SAM9_PMC_MDIV_2 (1 << 8)
#define AT91SAM9_PMC_MDIV_4 (2 << 8)
-#define AT91SAM9_PMC_MDIV_6 (3 << 8)
+#define AT91SAM9_PMC_MDIV_6 (3 << 8) /* [some SAM9 only] */
+#define AT91SAM9_PMC_MDIV_3 (3 << 8) /* [some SAM9 only] */
#define AT91_PMC_PDIV (1 << 12) /* Processor Clock Division [some SAM9 only] */
#define AT91_PMC_PDIV_1 (0 << 12)
#define AT91_PMC_PDIV_2 (1 << 12)
+#define AT91_PMC_PLLADIV2 (1 << 12) /* PLLA divisor by 2 [some SAM9 only] */
+#define AT91_PMC_PLLADIV2_OFF (0 << 12)
+#define AT91_PMC_PLLADIV2_ON (1 << 12)
-#define AT91_PMC_PCKR(n) (AT91_PMC + 0x40 + ((n) * 4)) /* Programmable Clock 0-3 Registers */
+#define AT91_PMC_USB (AT91_PMC + 0x38) /* USB Clock Register [some SAM9 only] */
+#define AT91_PMC_USBS (0x1 << 0) /* USB OHCI Input clock selection */
+#define AT91_PMC_USBS_PLLA (0 << 0)
+#define AT91_PMC_USBS_UPLL (1 << 0)
+#define AT91_PMC_OHCIUSBDIV (0xF << 8) /* Divider for USB OHCI Clock */
+
+#define AT91_PMC_PCKR(n) (AT91_PMC + 0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */
+#define AT91_PMC_CSSMCK (0x1 << 8) /* CSS or Master Clock Selection */
+#define AT91_PMC_CSSMCK_CSS (0 << 8)
+#define AT91_PMC_CSSMCK_MCK (1 << 8)
#define AT91_PMC_IER (AT91_PMC + 0x60) /* Interrupt Enable Register */
#define AT91_PMC_IDR (AT91_PMC + 0x64) /* Interrupt Disable Register */
@@ -102,7 +116,7 @@
#define AT91_PMC_LOCKA (1 << 1) /* PLLA Lock */
#define AT91_PMC_LOCKB (1 << 2) /* PLLB Lock */
#define AT91_PMC_MCKRDY (1 << 3) /* Master Clock */
-#define AT91_PMC_LOCKU (1 << 6) /* UPLL Lock [AT91CAP9 only] */
+#define AT91_PMC_LOCKU (1 << 6) /* UPLL Lock [some SAM9, AT91CAP9 only] */
#define AT91_PMC_OSCSEL (1 << 7) /* Slow Clock Oscillator [AT91CAP9 revC only] */
#define AT91_PMC_PCK0RDY (1 << 8) /* Programmable Clock 0 */
#define AT91_PMC_PCK1RDY (1 << 9) /* Programmable Clock 1 */
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index ae24486f858..c535e8805a3 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -450,10 +450,19 @@ static struct amba_device uart3_device = {
};
+static struct resource ep93xx_rtc_resource[] = {
+ {
+ .start = EP93XX_RTC_PHYS_BASE,
+ .end = EP93XX_RTC_PHYS_BASE + 0x10c - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct platform_device ep93xx_rtc_device = {
- .name = "ep93xx-rtc",
- .id = -1,
- .num_resources = 0,
+ .name = "ep93xx-rtc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(ep93xx_rtc_resource),
+ .resource = ep93xx_rtc_resource,
};
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index f66be12b856..78ac1bddc8b 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -147,6 +147,7 @@
#define EP93XX_PWM_BASE (EP93XX_APB_VIRT_BASE + 0x00110000)
#define EP93XX_RTC_BASE (EP93XX_APB_VIRT_BASE + 0x00120000)
+#define EP93XX_RTC_PHYS_BASE (EP93XX_APB_PHYS_BASE + 0x00120000)
#define EP93XX_SYSCON_BASE (EP93XX_APB_VIRT_BASE + 0x00130000)
#define EP93XX_SYSCON_REG(x) (EP93XX_SYSCON_BASE + (x))
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index f7a3283dd02..551332e4ed0 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -12,32 +12,56 @@
#include <linux/module.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
-#include <mach/hardware.h>
+#include <linux/io.h>
+
+#define EP93XX_RTC_DATA 0x000
+#define EP93XX_RTC_MATCH 0x004
+#define EP93XX_RTC_STATUS 0x008
+#define EP93XX_RTC_STATUS_INTR (1<<0)
+#define EP93XX_RTC_LOAD 0x00C
+#define EP93XX_RTC_CONTROL 0x010
+#define EP93XX_RTC_CONTROL_MIE (1<<0)
+#define EP93XX_RTC_SWCOMP 0x108
+#define EP93XX_RTC_SWCOMP_DEL_MASK 0x001f0000
+#define EP93XX_RTC_SWCOMP_DEL_SHIFT 16
+#define EP93XX_RTC_SWCOMP_INT_MASK 0x0000ffff
+#define EP93XX_RTC_SWCOMP_INT_SHIFT 0
+
+#define DRV_VERSION "0.3"
-#define EP93XX_RTC_REG(x) (EP93XX_RTC_BASE + (x))
-#define EP93XX_RTC_DATA EP93XX_RTC_REG(0x0000)
-#define EP93XX_RTC_LOAD EP93XX_RTC_REG(0x000C)
-#define EP93XX_RTC_SWCOMP EP93XX_RTC_REG(0x0108)
-
-#define DRV_VERSION "0.2"
+/*
+ * struct device dev.platform_data is used to store our private data
+ * because struct rtc_device does not have a variable to hold it.
+ */
+struct ep93xx_rtc {
+ void __iomem *mmio_base;
+};
-static int ep93xx_get_swcomp(struct device *dev, unsigned short *preload,
+static int ep93xx_rtc_get_swcomp(struct device *dev, unsigned short *preload,
unsigned short *delete)
{
- unsigned short comp = __raw_readl(EP93XX_RTC_SWCOMP);
+ struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+ unsigned long comp;
+
+ comp = __raw_readl(ep93xx_rtc->mmio_base + EP93XX_RTC_SWCOMP);
if (preload)
- *preload = comp & 0xffff;
+ *preload = (comp & EP93XX_RTC_SWCOMP_INT_MASK)
+ >> EP93XX_RTC_SWCOMP_INT_SHIFT;
if (delete)
- *delete = (comp >> 16) & 0x1f;
+ *delete = (comp & EP93XX_RTC_SWCOMP_DEL_MASK)
+ >> EP93XX_RTC_SWCOMP_DEL_SHIFT;
return 0;
}
static int ep93xx_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
- unsigned long time = __raw_readl(EP93XX_RTC_DATA);
+ struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+ unsigned long time;
+
+ time = __raw_readl(ep93xx_rtc->mmio_base + EP93XX_RTC_DATA);
rtc_time_to_tm(time, tm);
return 0;
@@ -45,7 +69,9 @@ static int ep93xx_rtc_read_time(struct device *dev, struct rtc_time *tm)
static int ep93xx_rtc_set_mmss(struct device *dev, unsigned long secs)
{
- __raw_writel(secs + 1, EP93XX_RTC_LOAD);
+ struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+
+ __raw_writel(secs + 1, ep93xx_rtc->mmio_base + EP93XX_RTC_LOAD);
return 0;
}
@@ -53,7 +79,7 @@ static int ep93xx_rtc_proc(struct device *dev, struct seq_file *seq)
{
unsigned short preload, delete;
- ep93xx_get_swcomp(dev, &preload, &delete);
+ ep93xx_rtc_get_swcomp(dev, &preload, &delete);
seq_printf(seq, "preload\t\t: %d\n", preload);
seq_printf(seq, "delete\t\t: %d\n", delete);
@@ -67,54 +93,104 @@ static const struct rtc_class_ops ep93xx_rtc_ops = {
.proc = ep93xx_rtc_proc,
};
-static ssize_t ep93xx_sysfs_show_comp_preload(struct device *dev,
+static ssize_t ep93xx_rtc_show_comp_preload(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned short preload;
- ep93xx_get_swcomp(dev, &preload, NULL);
+ ep93xx_rtc_get_swcomp(dev, &preload, NULL);
return sprintf(buf, "%d\n", preload);
}
-static DEVICE_ATTR(comp_preload, S_IRUGO, ep93xx_sysfs_show_comp_preload, NULL);
+static DEVICE_ATTR(comp_preload, S_IRUGO, ep93xx_rtc_show_comp_preload, NULL);
-static ssize_t ep93xx_sysfs_show_comp_delete(struct device *dev,
+static ssize_t ep93xx_rtc_show_comp_delete(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned short delete;
- ep93xx_get_swcomp(dev, NULL, &delete);
+ ep93xx_rtc_get_swcomp(dev, NULL, &delete);
return sprintf(buf, "%d\n", delete);
}
-static DEVICE_ATTR(comp_delete, S_IRUGO, ep93xx_sysfs_show_comp_delete, NULL);
+static DEVICE_ATTR(comp_delete, S_IRUGO, ep93xx_rtc_show_comp_delete, NULL);
-static int __devinit ep93xx_rtc_probe(struct platform_device *dev)
+static int __init ep93xx_rtc_probe(struct platform_device *pdev)
{
- struct rtc_device *rtc = rtc_device_register("ep93xx",
- &dev->dev, &ep93xx_rtc_ops, THIS_MODULE);
+ struct ep93xx_rtc *ep93xx_rtc;
+ struct resource *res;
+ struct rtc_device *rtc;
+ int err;
+
+ ep93xx_rtc = kzalloc(sizeof(struct ep93xx_rtc), GFP_KERNEL);
+ if (ep93xx_rtc == NULL)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL)
+ return -ENXIO;
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (res == NULL)
+ return -EBUSY;
+
+ ep93xx_rtc->mmio_base = ioremap(res->start, resource_size(res));
+ if (ep93xx_rtc->mmio_base == NULL) {
+ err = -ENXIO;
+ goto fail;
+ }
+ pdev->dev.platform_data = ep93xx_rtc;
+
+ rtc = rtc_device_register(pdev->name,
+ &pdev->dev, &ep93xx_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
- return PTR_ERR(rtc);
+ err = PTR_ERR(rtc);
+ goto fail;
}
- platform_set_drvdata(dev, rtc);
+ platform_set_drvdata(pdev, rtc);
- device_create_file(&dev->dev, &dev_attr_comp_preload);
- device_create_file(&dev->dev, &dev_attr_comp_delete);
+ err = device_create_file(&pdev->dev, &dev_attr_comp_preload);
+ if (err)
+ goto fail;
+ err = device_create_file(&pdev->dev, &dev_attr_comp_delete);
+ if (err) {
+ device_remove_file(&pdev->dev, &dev_attr_comp_preload);
+ goto fail;
+ }
return 0;
+
+fail:
+ if (ep93xx_rtc->mmio_base) {
+ iounmap(ep93xx_rtc->mmio_base);
+ pdev->dev.platform_data = NULL;
+ }
+ release_mem_region(res->start, resource_size(res));
+ return err;
}
-static int __devexit ep93xx_rtc_remove(struct platform_device *dev)
+static int __exit ep93xx_rtc_remove(struct platform_device *pdev)
{
- struct rtc_device *rtc = platform_get_drvdata(dev);
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
+ struct ep93xx_rtc *ep93xx_rtc = pdev->dev.platform_data;
+ struct resource *res;
+
+ /* cleanup sysfs */
+ device_remove_file(&pdev->dev, &dev_attr_comp_delete);
+ device_remove_file(&pdev->dev, &dev_attr_comp_preload);
+
+ rtc_device_unregister(rtc);
+
+ iounmap(ep93xx_rtc->mmio_base);
+ pdev->dev.platform_data = NULL;
- if (rtc)
- rtc_device_unregister(rtc);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
- platform_set_drvdata(dev, NULL);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
@@ -122,23 +198,22 @@ static int __devexit ep93xx_rtc_remove(struct platform_device *dev)
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:ep93xx-rtc");
-static struct platform_driver ep93xx_rtc_platform_driver = {
+static struct platform_driver ep93xx_rtc_driver = {
.driver = {
.name = "ep93xx-rtc",
.owner = THIS_MODULE,
},
- .probe = ep93xx_rtc_probe,
- .remove = __devexit_p(ep93xx_rtc_remove),
+ .remove = __exit_p(ep93xx_rtc_remove),
};
static int __init ep93xx_rtc_init(void)
{
- return platform_driver_register(&ep93xx_rtc_platform_driver);
+ return platform_driver_probe(&ep93xx_rtc_driver, ep93xx_rtc_probe);
}
static void __exit ep93xx_rtc_exit(void)
{
- platform_driver_unregister(&ep93xx_rtc_platform_driver);
+ platform_driver_unregister(&ep93xx_rtc_driver);
}
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-07 18:46:45 +0000