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Merge branch 'for-v3.16/ti-clk-drv' of github.com:t-kristo/linux-pm into clk-next

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This commit is contained in:
Mike Turquette 2014-06-10 16:53:25 -07:00
commit 3f6eec9969
22 changed files with 1175 additions and 78 deletions
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24
Documentation/devicetree/bindings/clock/ti/apll.txt
View File

@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that.
[2] Documentation/devicetree/bindings/clock/ti/dpll.txt
Required properties:
- compatible : shall be "ti,dra7-apll-clock"
- compatible : shall be "ti,dra7-apll-clock" or "ti,omap2-apll-clock"
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks (clk-ref and clk-bypass)
- reg : address and length of the register set for controlling the APLL.
It contains the information of registers in the following order:
"control" - contains the control register base address
"idlest" - contains the idlest register base address
"control" - contains the control register offset
"idlest" - contains the idlest register offset
"autoidle" - contains the autoidle register offset (OMAP2 only)
- ti,clock-frequency : static clock frequency for the clock (OMAP2 only)
- ti,idlest-shift : bit-shift for the idlest field (OMAP2 only)
- ti,bit-shift : bit-shift for enable and autoidle fields (OMAP2 only)
Examples:
apll_pcie_ck: apll_pcie_ck@4a008200 {
apll_pcie_ck: apll_pcie_ck {
#clock-cells = <0>;
clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>;
reg = <0x4a00821c 0x4>, <0x4a008220 0x4>;
reg = <0x021c>, <0x0220>;
compatible = "ti,dra7-apll-clock";
};
apll96_ck: apll96_ck {
#clock-cells = <0>;
compatible = "ti,omap2-apll-clock";
clocks = <&sys_ck>;
ti,bit-shift = <2>;
ti,idlest-shift = <8>;
ti,clock-frequency = <96000000>;
reg = <0x0500>, <0x0530>, <0x0520>;
};

10
Documentation/devicetree/bindings/clock/ti/dpll.txt
View File

@ -24,12 +24,14 @@ Required properties:
"ti,omap4-dpll-core-clock",
"ti,omap4-dpll-m4xen-clock",
"ti,omap4-dpll-j-type-clock",
"ti,omap5-mpu-dpll-clock",
"ti,am3-dpll-no-gate-clock",
"ti,am3-dpll-j-type-clock",
"ti,am3-dpll-no-gate-j-type-clock",
"ti,am3-dpll-clock",
"ti,am3-dpll-core-clock",
"ti,am3-dpll-x2-clock",
"ti,omap2-dpll-core-clock",
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks, first entry lists reference clock
@ -41,6 +43,7 @@ Required properties:
"mult-div1" - contains the multiplier / divider register base address
"autoidle" - contains the autoidle register base address (optional)
ti,am3-* dpll types do not have autoidle register
ti,omap2-* dpll type does not support idlest / autoidle registers
Optional properties:
- DPLL mode setting - defining any one or more of the following overrides
@ -73,3 +76,10 @@ Examples:
clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
reg = <0x90>, <0x5c>, <0x68>;
};
dpll_ck: dpll_ck {
#clock-cells = <0>;
compatible = "ti,omap2-dpll-core-clock";
clocks = <&sys_ck>, <&sys_ck>;
reg = <0x0500>, <0x0540>;
};

96
Documentation/devicetree/bindings/clock/ti/dra7-atl.txt Normal file
View File

@ -0,0 +1,96 @@
Device Tree Clock bindings for ATL (Audio Tracking Logic) of DRA7 SoC.
The ATL IP is used to generate clock to be used to synchronize baseband and
audio codec. A single ATL IP provides four ATL clock instances sharing the same
functional clock but can be configured to provide different clocks.
ATL can maintain a clock averages to some desired frequency based on the bws/aws
signals - can compensate the drift between the two ws signal.
In order to provide the support for ATL and it's output clocks (which can be used
internally within the SoC or external components) two sets of bindings is needed:
Clock tree binding:
This binding uses the common clock binding[1].
To be able to integrate the ATL clocks with DT clock tree.
Provides ccf level representation of the ATL clocks to be used by drivers.
Since the clock instances are part of a single IP this binding is used as a node
for the DT clock tree, the IP driver is needed to handle the actual configuration
of the IP.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
Required properties:
- compatible : shall be "ti,dra7-atl-clock"
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles to functional clock of ATL
Binding for the IP driver:
This binding is used to configure the IP driver which is going to handle the
configuration of the IP for the ATL clock instances.
Required properties:
- compatible : shall be "ti,dra7-atl"
- reg : base address for the ATL IP
- ti,provided-clocks : List of phandles to the clocks associated with the ATL
- clocks : link phandles to functional clock of ATL
- clock-names : Shall be set to "fck"
- ti,hwmods : Shall be set to "atl"
Optional properties:
Configuration of ATL instances:
- atl{0/1/2/3} {
- bws : Baseband word select signal selection
- aws : Audio word select signal selection
};
For valid word select signals, see the dt-bindings/clk/ti-dra7-atl.h include
file.
Examples:
/* clock bindings for atl provided clocks */
atl_clkin0_ck: atl_clkin0_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin1_ck: atl_clkin1_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin2_ck: atl_clkin2_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin3_ck: atl_clkin3_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
/* binding for the IP */
atl: atl@4843c000 {
compatible = "ti,dra7-atl";
reg = <0x4843c000 0x3ff>;
ti,hwmods = "atl";
ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
<&atl_clkin2_ck>, <&atl_clkin3_ck>;
clocks = <&atl_gfclk_mux>;
clock-names = "fck";
status = "disabled";
};
#include <dt-bindings/clk/ti-dra7-atl.h>
&atl {
status = "okay";
atl2 {
bws = <DRA7_ATL_WS_MCASP2_FSX>;
aws = <DRA7_ATL_WS_MCASP3_FSX>;
};
};

29
Documentation/devicetree/bindings/clock/ti/gate.txt
View File

@ -25,6 +25,11 @@ Required properties:
to map clockdomains properly
"ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
required for a hardware errata
"ti,composite-gate-clock" - composite gate clock, to be part of composite
clock
"ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
for clock to be active before returning
from clk_enable()
- #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock
- reg : offset for register controlling adjustable gate, not needed for
@ -41,7 +46,7 @@ Examples:
#clock-cells = <0>;
compatible = "ti,gate-clock";
clocks = <&core_96m_fck>;
reg = <0x48004a00 0x4>;
reg = <0x0a00>;
ti,bit-shift = <25>;
};
@ -57,7 +62,7 @@ Examples:
#clock-cells = <0>;
compatible = "ti,dss-gate-clock";
clocks = <&dpll4_m4x2_ck>;
reg = <0x48004e00 0x4>;
reg = <0x0e00>;
ti,bit-shift = <0>;
};
@ -65,7 +70,7 @@ Examples:
#clock-cells = <0>;
compatible = "ti,am35xx-gate-clock";
clocks = <&ipss_ick>;
reg = <0x4800259c 0x4>;
reg = <0x059c>;
ti,bit-shift = <1>;
};
@ -80,6 +85,22 @@ Examples:
compatible = "ti,hsdiv-gate-clock";
clocks = <&dpll4_m2x2_mul_ck>;
ti,bit-shift = <0x1b>;
reg = <0x48004d00 0x4>;
reg = <0x0d00>;
ti,set-bit-to-disable;
};
vlynq_gate_fck: vlynq_gate_fck {
#clock-cells = <0>;
compatible = "ti,composite-gate-clock";
clocks = <&core_ck>;
ti,bit-shift = <3>;
reg = <0x0200>;
};
sys_clkout2_src_gate: sys_clkout2_src_gate {
#clock-cells = <0>;
compatible = "ti,composite-no-wait-gate-clock";
clocks = <&core_ck>;
ti,bit-shift = <15>;
reg = <0x0070>;
};

2
Documentation/devicetree/bindings/clock/ti/interface.txt
View File

@ -21,6 +21,8 @@ Required properties:
"ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
"ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
"ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
"ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
handling
- #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock
- reg : base address for the control register

24
arch/arm/boot/dts/dra7xx-clocks.dtsi
View File

@ -26,7 +26,7 @@
clock-frequency = <0>;
};
atlclkin3_ck: atlclkin3_ck {
atl_clkin3_ck: atl_clkin3_ck {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <0>;
@ -277,7 +277,7 @@
dpll_mpu_ck: dpll_mpu_ck {
#clock-cells = <0>;
compatible = "ti,omap4-dpll-clock";
compatible = "ti,omap5-mpu-dpll-clock";
clocks = <&sys_clkin1>, <&mpu_dpll_hs_clk_div>;
reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>;
};
@ -730,7 +730,7 @@
mcasp1_ahclkr_mux: mcasp1_ahclkr_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <28>;
reg = <0x0550>;
};
@ -738,7 +738,7 @@
mcasp1_ahclkx_mux: mcasp1_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x0550>;
};
@ -1639,7 +1639,7 @@
mcasp2_ahclkr_mux: mcasp2_ahclkr_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <28>;
reg = <0x1860>;
};
@ -1647,7 +1647,7 @@
mcasp2_ahclkx_mux: mcasp2_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1860>;
};
@ -1663,7 +1663,7 @@
mcasp3_ahclkx_mux: mcasp3_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1868>;
};
@ -1679,7 +1679,7 @@
mcasp4_ahclkx_mux: mcasp4_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1898>;
};
@ -1695,7 +1695,7 @@
mcasp5_ahclkx_mux: mcasp5_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1878>;
};
@ -1711,7 +1711,7 @@
mcasp6_ahclkx_mux: mcasp6_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1904>;
};
@ -1727,7 +1727,7 @@
mcasp7_ahclkx_mux: mcasp7_ahclkx_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1908>;
};
@ -1743,7 +1743,7 @@
mcasp8_ahclk_mux: mcasp8_ahclk_mux {
#clock-cells = <0>;
compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <22>;
reg = <0x1890>;
};

2
arch/arm/boot/dts/omap54xx-clocks.dtsi
View File

@ -335,7 +335,7 @@
dpll_mpu_ck: dpll_mpu_ck {
#clock-cells = <0>;
compatible = "ti,omap4-dpll-clock";
compatible = "ti,omap5-mpu-dpll-clock";
clocks = <&sys_clkin>, <&mpu_dpll_hs_clk_div>;
reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>;
};

53
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
View File

@ -208,3 +208,56 @@ void omap2xxx_clkt_vps_late_init(void)
clk_put(c);
}
}
#ifdef CONFIG_OF
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
static const struct clk_ops virt_prcm_set_ops = {
.recalc_rate = &omap2_table_mpu_recalc,
.set_rate = &omap2_select_table_rate,
.round_rate = &omap2_round_to_table_rate,
};
/**
* omap2xxx_clkt_vps_init - initialize virt_prcm_set clock
*
* Does a manual init for the virtual prcm DVFS clock for OMAP2. This
* function is called only from omap2 DT clock init, as the virtual
* node is not modelled in the DT clock data.
*/
void omap2xxx_clkt_vps_init(void)
{
struct clk_init_data init = { NULL };
struct clk_hw_omap *hw = NULL;
struct clk *clk;
const char *parent_name = "mpu_ck";
struct clk_lookup *lookup = NULL;
omap2xxx_clkt_vps_late_init();
omap2xxx_clkt_vps_check_bootloader_rates();
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
lookup = kzalloc(sizeof(*lookup), GFP_KERNEL);
if (!hw || !lookup)
goto cleanup;
init.name = "virt_prcm_set";
init.ops = &virt_prcm_set_ops;
init.parent_names = &parent_name;
init.num_parents = 1;
hw->hw.init = &init;
clk = clk_register(NULL, &hw->hw);
lookup->dev_id = NULL;
lookup->con_id = "cpufreq_ck";
lookup->clk = clk;
clkdev_add(lookup);
return;
cleanup:
kfree(hw);
kfree(lookup);
}
#endif

13
arch/arm/mach-omap2/clock.h
View File

@ -178,17 +178,6 @@ struct clksel {
const struct clksel_rate *rates;
};
struct clk_hw_omap_ops {
void (*find_idlest)(struct clk_hw_omap *oclk,
void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
void (*find_companion)(struct clk_hw_omap *oclk,
void __iomem **other_reg,
u8 *other_bit);
void (*allow_idle)(struct clk_hw_omap *oclk);
void (*deny_idle)(struct clk_hw_omap *oclk);
};
unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
unsigned long parent_rate);
@ -279,8 +268,6 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
extern const struct clk_hw_omap_ops clkhwops_apll54;
extern const struct clk_hw_omap_ops clkhwops_apll96;
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
/* clksel_rate blocks shared between OMAP44xx and AM33xx */
extern const struct clksel_rate div_1_0_rates[];

4
arch/arm/mach-omap2/clock2xxx.h
View File

@ -21,10 +21,6 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate);
unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
unsigned long parent_rate);

9
arch/arm/mach-omap2/dpll3xxx.c
View File

@ -319,6 +319,15 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
/* Set DPLL multiplier, divider */
v = omap2_clk_readl(clk, dd->mult_div1_reg);
/* Handle Duty Cycle Correction */
if (dd->dcc_mask) {
if (dd->last_rounded_rate >= dd->dcc_rate)
v |= dd->dcc_mask; /* Enable DCC */
else
v &= ~dd->dcc_mask; /* Disable DCC */
}
v &= ~(dd->mult_mask | dd->div1_mask);
v |= dd->last_rounded_m << __ffs(dd->mult_mask);
v |= (dd->last_rounded_n - 1) << __ffs(dd->div1_mask);

4
drivers/clk/ti/Makefile
View File

@ -3,9 +3,11 @@ obj-y += clk.o autoidle.o clockdomain.o
clk-common = dpll.o composite.o divider.o gate.o \
fixed-factor.o mux.o apll.o
obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o clk-3xxx.o
obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o
obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \
clk-dra7-atl.o
obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o
endif

181
drivers/clk/ti/apll.c
View File

@ -221,3 +221,184 @@ cleanup:
kfree(init);
}
CLK_OF_DECLARE(dra7_apll_clock, "ti,dra7-apll-clock", of_dra7_apll_setup);
#define OMAP2_EN_APLL_LOCKED 0x3
#define OMAP2_EN_APLL_STOPPED 0x0
static int omap2_apll_is_enabled(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ad->enable_mask;
v >>= __ffs(ad->enable_mask);
return v == OMAP2_EN_APLL_LOCKED ? 1 : 0;
}
static unsigned long omap2_apll_recalc(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
if (omap2_apll_is_enabled(hw))
return clk->fixed_rate;
return 0;
}
static int omap2_apll_enable(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
int i = 0;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ~ad->enable_mask;
v |= OMAP2_EN_APLL_LOCKED << __ffs(ad->enable_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
while (1) {
v = ti_clk_ll_ops->clk_readl(ad->idlest_reg);
if (v & ad->idlest_mask)
break;
if (i > MAX_APLL_WAIT_TRIES)
break;
i++;
udelay(1);
}
if (i == MAX_APLL_WAIT_TRIES) {
pr_warn("%s failed to transition to locked\n",
__clk_get_name(clk->hw.clk));
return -EBUSY;
}
return 0;
}
static void omap2_apll_disable(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ~ad->enable_mask;
v |= OMAP2_EN_APLL_STOPPED << __ffs(ad->enable_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
}
static struct clk_ops omap2_apll_ops = {
.enable = &omap2_apll_enable,
.disable = &omap2_apll_disable,
.is_enabled = &omap2_apll_is_enabled,
.recalc_rate = &omap2_apll_recalc,
};
static void omap2_apll_set_autoidle(struct clk_hw_omap *clk, u32 val)
{
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->autoidle_reg);
v &= ~ad->autoidle_mask;
v |= val << __ffs(ad->autoidle_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
}
#define OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP 0x3
#define OMAP2_APLL_AUTOIDLE_DISABLE 0x0
static void omap2_apll_allow_idle(struct clk_hw_omap *clk)
{
omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP);
}
static void omap2_apll_deny_idle(struct clk_hw_omap *clk)
{
omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_DISABLE);
}
static struct clk_hw_omap_ops omap2_apll_hwops = {
.allow_idle = &omap2_apll_allow_idle,
.deny_idle = &omap2_apll_deny_idle,
};
static void __init of_omap2_apll_setup(struct device_node *node)
{
struct dpll_data *ad = NULL;
struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL;
struct clk *clk;
const char *parent_name;
u32 val;
ad = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
init = kzalloc(sizeof(*init), GFP_KERNEL);
if (!ad || !clk_hw || !init)
goto cleanup;
clk_hw->dpll_data = ad;
clk_hw->hw.init = init;
init->ops = &omap2_apll_ops;
init->name = node->name;
clk_hw->ops = &omap2_apll_hwops;
init->num_parents = of_clk_get_parent_count(node);
if (init->num_parents != 1) {
pr_err("%s must have one parent\n", node->name);
goto cleanup;
}
parent_name = of_clk_get_parent_name(node, 0);
init->parent_names = &parent_name;
if (of_property_read_u32(node, "ti,clock-frequency", &val)) {
pr_err("%s missing clock-frequency\n", node->name);
goto cleanup;
}
clk_hw->fixed_rate = val;
if (of_property_read_u32(node, "ti,bit-shift", &val)) {
pr_err("%s missing bit-shift\n", node->name);
goto cleanup;
}
clk_hw->enable_bit = val;
ad->enable_mask = 0x3 << val;
ad->autoidle_mask = 0x3 << val;
if (of_property_read_u32(node, "ti,idlest-shift", &val)) {
pr_err("%s missing idlest-shift\n", node->name);
goto cleanup;
}
ad->idlest_mask = 1 << val;
ad->control_reg = ti_clk_get_reg_addr(node, 0);
ad->autoidle_reg = ti_clk_get_reg_addr(node, 1);
ad->idlest_reg = ti_clk_get_reg_addr(node, 2);
if (!ad->control_reg || !ad->autoidle_reg || !ad->idlest_reg)
goto cleanup;
clk = clk_register(NULL, &clk_hw->hw);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
kfree(init);
return;
}
cleanup:
kfree(ad);
kfree(clk_hw);
kfree(init);
}
CLK_OF_DECLARE(omap2_apll_clock, "ti,omap2-apll-clock",
of_omap2_apll_setup);

256
drivers/clk/ti/clk-2xxx.c Normal file
View File

@ -0,0 +1,256 @@
/*
* OMAP2 Clock init
*
* Copyright (C) 2013 Texas Instruments, Inc
* Tero Kristo (t-kristo@ti.com)
*
* 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 version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/clk-provider.h>
#include <linux/clk/ti.h>
static struct ti_dt_clk omap2xxx_clks[] = {
DT_CLK(NULL, "func_32k_ck", "func_32k_ck"),
DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"),
DT_CLK(NULL, "virt_12m_ck", "virt_12m_ck"),
DT_CLK(NULL, "virt_13m_ck", "virt_13m_ck"),
DT_CLK(NULL, "virt_19200000_ck", "virt_19200000_ck"),
DT_CLK(NULL, "virt_26m_ck", "virt_26m_ck"),
DT_CLK(NULL, "aplls_clkin_ck", "aplls_clkin_ck"),
DT_CLK(NULL, "aplls_clkin_x2_ck", "aplls_clkin_x2_ck"),
DT_CLK(NULL, "osc_ck", "osc_ck"),
DT_CLK(NULL, "sys_ck", "sys_ck"),
DT_CLK(NULL, "alt_ck", "alt_ck"),
DT_CLK(NULL, "mcbsp_clks", "mcbsp_clks"),
DT_CLK(NULL, "dpll_ck", "dpll_ck"),
DT_CLK(NULL, "apll96_ck", "apll96_ck"),
DT_CLK(NULL, "apll54_ck", "apll54_ck"),
DT_CLK(NULL, "func_54m_ck", "func_54m_ck"),
DT_CLK(NULL, "core_ck", "core_ck"),
DT_CLK(NULL, "func_96m_ck", "func_96m_ck"),
DT_CLK(NULL, "func_48m_ck", "func_48m_ck"),
DT_CLK(NULL, "func_12m_ck", "func_12m_ck"),
DT_CLK(NULL, "sys_clkout_src", "sys_clkout_src"),
DT_CLK(NULL, "sys_clkout", "sys_clkout"),
DT_CLK(NULL, "emul_ck", "emul_ck"),
DT_CLK(NULL, "mpu_ck", "mpu_ck"),
DT_CLK(NULL, "dsp_fck", "dsp_fck"),
DT_CLK(NULL, "gfx_3d_fck", "gfx_3d_fck"),
DT_CLK(NULL, "gfx_2d_fck", "gfx_2d_fck"),
DT_CLK(NULL, "gfx_ick", "gfx_ick"),
DT_CLK("omapdss_dss", "ick", "dss_ick"),
DT_CLK(NULL, "dss_ick", "dss_ick"),
DT_CLK(NULL, "dss1_fck", "dss1_fck"),
DT_CLK(NULL, "dss2_fck", "dss2_fck"),
DT_CLK(NULL, "dss_54m_fck", "dss_54m_fck"),
DT_CLK(NULL, "core_l3_ck", "core_l3_ck"),
DT_CLK(NULL, "ssi_fck", "ssi_ssr_sst_fck"),
DT_CLK(NULL, "usb_l4_ick", "usb_l4_ick"),
DT_CLK(NULL, "l4_ck", "l4_ck"),
DT_CLK(NULL, "ssi_l4_ick", "ssi_l4_ick"),
DT_CLK(NULL, "gpt1_ick", "gpt1_ick"),
DT_CLK(NULL, "gpt1_fck", "gpt1_fck"),
DT_CLK(NULL, "gpt2_ick", "gpt2_ick"),
DT_CLK(NULL, "gpt2_fck", "gpt2_fck"),
DT_CLK(NULL, "gpt3_ick", "gpt3_ick"),
DT_CLK(NULL, "gpt3_fck", "gpt3_fck"),
DT_CLK(NULL, "gpt4_ick", "gpt4_ick"),
DT_CLK(NULL, "gpt4_fck", "gpt4_fck"),
DT_CLK(NULL, "gpt5_ick", "gpt5_ick"),
DT_CLK(NULL, "gpt5_fck", "gpt5_fck"),
DT_CLK(NULL, "gpt6_ick", "gpt6_ick"),
DT_CLK(NULL, "gpt6_fck", "gpt6_fck"),
DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
DT_CLK(NULL, "gpt7_fck", "gpt7_fck"),
DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
DT_CLK(NULL, "gpt8_fck", "gpt8_fck"),
DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
DT_CLK(NULL, "gpt9_fck", "gpt9_fck"),
DT_CLK(NULL, "gpt10_ick", "gpt10_ick"),
DT_CLK(NULL, "gpt10_fck", "gpt10_fck"),
DT_CLK(NULL, "gpt11_ick", "gpt11_ick"),
DT_CLK(NULL, "gpt11_fck", "gpt11_fck"),
DT_CLK(NULL, "gpt12_ick", "gpt12_ick"),
DT_CLK(NULL, "gpt12_fck", "gpt12_fck"),
DT_CLK("omap-mcbsp.1", "ick", "mcbsp1_ick"),
DT_CLK(NULL, "mcbsp1_ick", "mcbsp1_ick"),
DT_CLK(NULL, "mcbsp1_fck", "mcbsp1_fck"),
DT_CLK("omap-mcbsp.2", "ick", "mcbsp2_ick"),
DT_CLK(NULL, "mcbsp2_ick", "mcbsp2_ick"),
DT_CLK(NULL, "mcbsp2_fck", "mcbsp2_fck"),
DT_CLK("omap2_mcspi.1", "ick", "mcspi1_ick"),
DT_CLK(NULL, "mcspi1_ick", "mcspi1_ick"),
DT_CLK(NULL, "mcspi1_fck", "mcspi1_fck"),
DT_CLK("omap2_mcspi.2", "ick", "mcspi2_ick"),
DT_CLK(NULL, "mcspi2_ick", "mcspi2_ick"),
DT_CLK(NULL, "mcspi2_fck", "mcspi2_fck"),
DT_CLK(NULL, "uart1_ick", "uart1_ick"),
DT_CLK(NULL, "uart1_fck", "uart1_fck"),
DT_CLK(NULL, "uart2_ick", "uart2_ick"),
DT_CLK(NULL, "uart2_fck", "uart2_fck"),
DT_CLK(NULL, "uart3_ick", "uart3_ick"),
DT_CLK(NULL, "uart3_fck", "uart3_fck"),
DT_CLK(NULL, "gpios_ick", "gpios_ick"),
DT_CLK(NULL, "gpios_fck", "gpios_fck"),
DT_CLK("omap_wdt", "ick", "mpu_wdt_ick"),
DT_CLK(NULL, "mpu_wdt_ick", "mpu_wdt_ick"),
DT_CLK(NULL, "mpu_wdt_fck", "mpu_wdt_fck"),
DT_CLK(NULL, "sync_32k_ick", "sync_32k_ick"),
DT_CLK(NULL, "wdt1_ick", "wdt1_ick"),
DT_CLK(NULL, "omapctrl_ick", "omapctrl_ick"),
DT_CLK("omap24xxcam", "fck", "cam_fck"),
DT_CLK(NULL, "cam_fck", "cam_fck"),
DT_CLK("omap24xxcam", "ick", "cam_ick"),
DT_CLK(NULL, "cam_ick", "cam_ick"),
DT_CLK(NULL, "mailboxes_ick", "mailboxes_ick"),
DT_CLK(NULL, "wdt4_ick", "wdt4_ick"),
DT_CLK(NULL, "wdt4_fck", "wdt4_fck"),
DT_CLK(NULL, "mspro_ick", "mspro_ick"),
DT_CLK(NULL, "mspro_fck", "mspro_fck"),
DT_CLK(NULL, "fac_ick", "fac_ick"),
DT_CLK(NULL, "fac_fck", "fac_fck"),
DT_CLK("omap_hdq.0", "ick", "hdq_ick"),
DT_CLK(NULL, "hdq_ick", "hdq_ick"),
DT_CLK("omap_hdq.0", "fck", "hdq_fck"),
DT_CLK(NULL, "hdq_fck", "hdq_fck"),
DT_CLK("omap_i2c.1", "ick", "i2c1_ick"),
DT_CLK(NULL, "i2c1_ick", "i2c1_ick"),
DT_CLK("omap_i2c.2", "ick", "i2c2_ick"),
DT_CLK(NULL, "i2c2_ick", "i2c2_ick"),
DT_CLK(NULL, "gpmc_fck", "gpmc_fck"),
DT_CLK(NULL, "sdma_fck", "sdma_fck"),
DT_CLK(NULL, "sdma_ick", "sdma_ick"),
DT_CLK(NULL, "sdrc_ick", "sdrc_ick"),
DT_CLK(NULL, "des_ick", "des_ick"),
DT_CLK("omap-sham", "ick", "sha_ick"),
DT_CLK(NULL, "sha_ick", "sha_ick"),
DT_CLK("omap_rng", "ick", "rng_ick"),
DT_CLK(NULL, "rng_ick", "rng_ick"),
DT_CLK("omap-aes", "ick", "aes_ick"),
DT_CLK(NULL, "aes_ick", "aes_ick"),
DT_CLK(NULL, "pka_ick", "pka_ick"),
DT_CLK(NULL, "usb_fck", "usb_fck"),
DT_CLK(NULL, "timer_32k_ck", "func_32k_ck"),
DT_CLK(NULL, "timer_sys_ck", "sys_ck"),
DT_CLK(NULL, "timer_ext_ck", "alt_ck"),
{ .node_name = NULL },
};
static struct ti_dt_clk omap2420_clks[] = {
DT_CLK(NULL, "sys_clkout2_src", "sys_clkout2_src"),
DT_CLK(NULL, "sys_clkout2", "sys_clkout2"),
DT_CLK(NULL, "dsp_ick", "dsp_ick"),
DT_CLK(NULL, "iva1_ifck", "iva1_ifck"),
DT_CLK(NULL, "iva1_mpu_int_ifck", "iva1_mpu_int_ifck"),
DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
DT_CLK(NULL, "wdt3_fck", "wdt3_fck"),
DT_CLK("mmci-omap.0", "ick", "mmc_ick"),
DT_CLK(NULL, "mmc_ick", "mmc_ick"),
DT_CLK("mmci-omap.0", "fck", "mmc_fck"),
DT_CLK(NULL, "mmc_fck", "mmc_fck"),
DT_CLK(NULL, "eac_ick", "eac_ick"),
DT_CLK(NULL, "eac_fck", "eac_fck"),
DT_CLK(NULL, "i2c1_fck", "i2c1_fck"),
DT_CLK(NULL, "i2c2_fck", "i2c2_fck"),
DT_CLK(NULL, "vlynq_ick", "vlynq_ick"),
DT_CLK(NULL, "vlynq_fck", "vlynq_fck"),
DT_CLK("musb-hdrc", "fck", "osc_ck"),
{ .node_name = NULL },
};
static struct ti_dt_clk omap2430_clks[] = {
DT_CLK("twl", "fck", "osc_ck"),
DT_CLK(NULL, "iva2_1_ick", "iva2_1_ick"),
DT_CLK(NULL, "mdm_ick", "mdm_ick"),
DT_CLK(NULL, "mdm_osc_ck", "mdm_osc_ck"),
DT_CLK("omap-mcbsp.3", "ick", "mcbsp3_ick"),
DT_CLK(NULL, "mcbsp3_ick", "mcbsp3_ick"),
DT_CLK(NULL, "mcbsp3_fck", "mcbsp3_fck"),
DT_CLK("omap-mcbsp.4", "ick", "mcbsp4_ick"),
DT_CLK(NULL, "mcbsp4_ick", "mcbsp4_ick"),
DT_CLK(NULL, "mcbsp4_fck", "mcbsp4_fck"),
DT_CLK("omap-mcbsp.5", "ick", "mcbsp5_ick"),
DT_CLK(NULL, "mcbsp5_ick", "mcbsp5_ick"),
DT_CLK(NULL, "mcbsp5_fck", "mcbsp5_fck"),
DT_CLK("omap2_mcspi.3", "ick", "mcspi3_ick"),
DT_CLK(NULL, "mcspi3_ick", "mcspi3_ick"),
DT_CLK(NULL, "mcspi3_fck", "mcspi3_fck"),
DT_CLK(NULL, "icr_ick", "icr_ick"),
DT_CLK(NULL, "i2chs1_fck", "i2chs1_fck"),
DT_CLK(NULL, "i2chs2_fck", "i2chs2_fck"),
DT_CLK("musb-omap2430", "ick", "usbhs_ick"),
DT_CLK(NULL, "usbhs_ick", "usbhs_ick"),
DT_CLK("omap_hsmmc.0", "ick", "mmchs1_ick"),
DT_CLK(NULL, "mmchs1_ick", "mmchs1_ick"),
DT_CLK(NULL, "mmchs1_fck", "mmchs1_fck"),
DT_CLK("omap_hsmmc.1", "ick", "mmchs2_ick"),
DT_CLK(NULL, "mmchs2_ick", "mmchs2_ick"),
DT_CLK(NULL, "mmchs2_fck", "mmchs2_fck"),
DT_CLK(NULL, "gpio5_ick", "gpio5_ick"),
DT_CLK(NULL, "gpio5_fck", "gpio5_fck"),
DT_CLK(NULL, "mdm_intc_ick", "mdm_intc_ick"),
DT_CLK("omap_hsmmc.0", "mmchsdb_fck", "mmchsdb1_fck"),
DT_CLK(NULL, "mmchsdb1_fck", "mmchsdb1_fck"),
DT_CLK("omap_hsmmc.1", "mmchsdb_fck", "mmchsdb2_fck"),
DT_CLK(NULL, "mmchsdb2_fck", "mmchsdb2_fck"),
{ .node_name = NULL },
};
static const char *enable_init_clks[] = {
"apll96_ck",
"apll54_ck",
"sync_32k_ick",
"omapctrl_ick",
"gpmc_fck",
"sdrc_ick",
};
enum {
OMAP2_SOC_OMAP2420,
OMAP2_SOC_OMAP2430,
};
static int __init omap2xxx_dt_clk_init(int soc_type)
{
ti_dt_clocks_register(omap2xxx_clks);
if (soc_type == OMAP2_SOC_OMAP2420)
ti_dt_clocks_register(omap2420_clks);
else
ti_dt_clocks_register(omap2430_clks);
omap2xxx_clkt_vps_init();
omap2_clk_disable_autoidle_all();
omap2_clk_enable_init_clocks(enable_init_clks,
ARRAY_SIZE(enable_init_clks));
pr_info("Clocking rate (Crystal/DPLL/MPU): %ld.%01ld/%ld/%ld MHz\n",
(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 1000000),
(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 100000) % 10,
(clk_get_rate(clk_get_sys(NULL, "dpll_ck")) / 1000000),
(clk_get_rate(clk_get_sys(NULL, "mpu_ck")) / 1000000));
return 0;
}
int __init omap2420_dt_clk_init(void)
{
return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2420);
}
int __init omap2430_dt_clk_init(void)
{
return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2430);
}

6
drivers/clk/ti/clk-54xx.c
View File

@ -240,6 +240,12 @@ int __init omap5xxx_dt_clk_init(void)
if (rc)
pr_err("%s: failed to configure ABE DPLL!\n", __func__);
abe_dpll = clk_get_sys(NULL, "dpll_abe_m2x2_ck");
if (!rc)
rc = clk_set_rate(abe_dpll, OMAP5_DPLL_ABE_DEFFREQ * 2);
if (rc)
pr_err("%s: failed to configure ABE m2x2 DPLL!\n", __func__);
usb_dpll = clk_get_sys(NULL, "dpll_usb_ck");
rc = clk_set_rate(usb_dpll, OMAP5_DPLL_USB_DEFFREQ);
if (rc)

2
drivers/clk/ti/clk-7xx.c
View File

@ -24,7 +24,7 @@ static struct ti_dt_clk dra7xx_clks[] = {
DT_CLK(NULL, "atl_clkin0_ck", "atl_clkin0_ck"),
DT_CLK(NULL, "atl_clkin1_ck", "atl_clkin1_ck"),
DT_CLK(NULL, "atl_clkin2_ck", "atl_clkin2_ck"),
DT_CLK(NULL, "atlclkin3_ck", "atlclkin3_ck"),
DT_CLK(NULL, "atl_clkin3_ck", "atl_clkin3_ck"),
DT_CLK(NULL, "hdmi_clkin_ck", "hdmi_clkin_ck"),
DT_CLK(NULL, "mlb_clkin_ck", "mlb_clkin_ck"),
DT_CLK(NULL, "mlbp_clkin_ck", "mlbp_clkin_ck"),

312
drivers/clk/ti/clk-dra7-atl.c Normal file
View File

@ -0,0 +1,312 @@
/*
* DRA7 ATL (Audio Tracking Logic) clock driver
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* Peter Ujfalusi <peter.ujfalusi@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.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#define DRA7_ATL_INSTANCES 4
#define DRA7_ATL_PPMR_REG(id) (0x200 + (id * 0x80))
#define DRA7_ATL_BBSR_REG(id) (0x204 + (id * 0x80))
#define DRA7_ATL_ATLCR_REG(id) (0x208 + (id * 0x80))
#define DRA7_ATL_SWEN_REG(id) (0x210 + (id * 0x80))
#define DRA7_ATL_BWSMUX_REG(id) (0x214 + (id * 0x80))
#define DRA7_ATL_AWSMUX_REG(id) (0x218 + (id * 0x80))
#define DRA7_ATL_PCLKMUX_REG(id) (0x21c + (id * 0x80))
#define DRA7_ATL_SWEN BIT(0)
#define DRA7_ATL_DIVIDER_MASK (0x1f)
#define DRA7_ATL_PCLKMUX BIT(0)
struct dra7_atl_clock_info;
struct dra7_atl_desc {
struct clk *clk;
struct clk_hw hw;
struct dra7_atl_clock_info *cinfo;
int id;
bool probed; /* the driver for the IP has been loaded */
bool valid; /* configured */
bool enabled;
u32 bws; /* Baseband Word Select Mux */
u32 aws; /* Audio Word Select Mux */
u32 divider; /* Cached divider value */
};
struct dra7_atl_clock_info {
struct device *dev;
void __iomem *iobase;
struct dra7_atl_desc *cdesc;
};
#define to_atl_desc(_hw) container_of(_hw, struct dra7_atl_desc, hw)
static inline void atl_write(struct dra7_atl_clock_info *cinfo, u32 reg,
u32 val)
{
__raw_writel(val, cinfo->iobase + reg);
}
static inline int atl_read(struct dra7_atl_clock_info *cinfo, u32 reg)
{
return __raw_readl(cinfo->iobase + reg);
}
static int atl_clk_enable(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
if (!cdesc->probed)
goto out;
if (unlikely(!cdesc->valid))
dev_warn(cdesc->cinfo->dev, "atl%d has not been configured\n",
cdesc->id);
pm_runtime_get_sync(cdesc->cinfo->dev);
atl_write(cdesc->cinfo, DRA7_ATL_ATLCR_REG(cdesc->id),
cdesc->divider - 1);
atl_write(cdesc->cinfo, DRA7_ATL_SWEN_REG(cdesc->id), DRA7_ATL_SWEN);
out:
cdesc->enabled = true;
return 0;
}
static void atl_clk_disable(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
if (!cdesc->probed)
goto out;
atl_write(cdesc->cinfo, DRA7_ATL_SWEN_REG(cdesc->id), 0);
pm_runtime_put_sync(cdesc->cinfo->dev);
out:
cdesc->enabled = false;
}
static int atl_clk_is_enabled(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
return cdesc->enabled;
}
static unsigned long atl_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
return parent_rate / cdesc->divider;
}
static long atl_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
unsigned divider;
divider = (*parent_rate + rate / 2) / rate;
if (divider > DRA7_ATL_DIVIDER_MASK + 1)
divider = DRA7_ATL_DIVIDER_MASK + 1;
return *parent_rate / divider;
}
static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
u32 divider;
divider = ((parent_rate + rate / 2) / rate) - 1;
if (divider > DRA7_ATL_DIVIDER_MASK)
divider = DRA7_ATL_DIVIDER_MASK;
cdesc->divider = divider + 1;
return 0;
}
const struct clk_ops atl_clk_ops = {
.enable = atl_clk_enable,
.disable = atl_clk_disable,
.is_enabled = atl_clk_is_enabled,
.recalc_rate = atl_clk_recalc_rate,
.round_rate = atl_clk_round_rate,
.set_rate = atl_clk_set_rate,
};
static void __init of_dra7_atl_clock_setup(struct device_node *node)
{
struct dra7_atl_desc *clk_hw = NULL;
struct clk_init_data init = { 0 };
const char **parent_names = NULL;
struct clk *clk;
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw) {
pr_err("%s: could not allocate dra7_atl_desc\n", __func__);
return;
}
clk_hw->hw.init = &init;
clk_hw->divider = 1;
init.name = node->name;
init.ops = &atl_clk_ops;
init.flags = CLK_IGNORE_UNUSED;
init.num_parents = of_clk_get_parent_count(node);
if (init.num_parents != 1) {
pr_err("%s: atl clock %s must have 1 parent\n", __func__,
node->name);
goto cleanup;
}
parent_names = kzalloc(sizeof(char *), GFP_KERNEL);
if (!parent_names)
goto cleanup;
parent_names[0] = of_clk_get_parent_name(node, 0);
init.parent_names = parent_names;
clk = clk_register(NULL, &clk_hw->hw);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
return;
}
cleanup:
kfree(parent_names);
kfree(clk_hw);
}
CLK_OF_DECLARE(dra7_atl_clock, "ti,dra7-atl-clock", of_dra7_atl_clock_setup);
static int of_dra7_atl_clk_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct dra7_atl_clock_info *cinfo;
int i;
int ret = 0;
if (!node)
return -ENODEV;
cinfo = devm_kzalloc(&pdev->dev, sizeof(*cinfo), GFP_KERNEL);
if (!cinfo)
return -ENOMEM;
cinfo->iobase = of_iomap(node, 0);
cinfo->dev = &pdev->dev;
pm_runtime_enable(cinfo->dev);
pm_runtime_get_sync(cinfo->dev);
atl_write(cinfo, DRA7_ATL_PCLKMUX_REG(0), DRA7_ATL_PCLKMUX);
for (i = 0; i < DRA7_ATL_INSTANCES; i++) {
struct device_node *cfg_node;
char prop[5];
struct dra7_atl_desc *cdesc;
struct of_phandle_args clkspec;
struct clk *clk;
int rc;
rc = of_parse_phandle_with_args(node, "ti,provided-clocks",
NULL, i, &clkspec);
if (rc) {
pr_err("%s: failed to lookup atl clock %d\n", __func__,
i);
return -EINVAL;
}
clk = of_clk_get_from_provider(&clkspec);
cdesc = to_atl_desc(__clk_get_hw(clk));
cdesc->cinfo = cinfo;
cdesc->id = i;
/* Get configuration for the ATL instances */
snprintf(prop, sizeof(prop), "atl%u", i);
cfg_node = of_find_node_by_name(node, prop);
if (cfg_node) {
ret = of_property_read_u32(cfg_node, "bws",
&cdesc->bws);
ret |= of_property_read_u32(cfg_node, "aws",
&cdesc->aws);
if (!ret) {
cdesc->valid = true;
atl_write(cinfo, DRA7_ATL_BWSMUX_REG(i),
cdesc->bws);
atl_write(cinfo, DRA7_ATL_AWSMUX_REG(i),
cdesc->aws);
}
}
cdesc->probed = true;
/*
* Enable the clock if it has been asked prior to loading the
* hw driver
*/
if (cdesc->enabled)
atl_clk_enable(__clk_get_hw(clk));
}
pm_runtime_put_sync(cinfo->dev);
return ret;
}
static int of_dra7_atl_clk_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
return 0;
}
static struct of_device_id of_dra7_atl_clk_match_tbl[] = {
{ .compatible = "ti,dra7-atl", },
{},
};
MODULE_DEVICE_TABLE(of, of_dra7_atl_clk_match_tbl);
static struct platform_driver dra7_atl_clk_driver = {
.driver = {
.name = "dra7-atl",
.owner = THIS_MODULE,
.of_match_table = of_dra7_atl_clk_match_tbl,
},
.probe = of_dra7_atl_clk_probe,
.remove = of_dra7_atl_clk_remove,
};
module_platform_driver(dra7_atl_clk_driver);
MODULE_DESCRIPTION("Clock driver for DRA7 Audio Tracking Logic");
MODULE_ALIAS("platform:dra7-atl-clock");
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_LICENSE("GPL v2");

138
drivers/clk/ti/dpll.c
View File

@ -25,8 +25,6 @@
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
#define DPLL_HAS_AUTOIDLE 0x1
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
static const struct clk_ops dpll_m4xen_ck_ops = {
@ -37,21 +35,18 @@ static const struct clk_ops dpll_m4xen_ck_ops = {
.set_rate = &omap3_noncore_dpll_set_rate,
.get_parent = &omap2_init_dpll_parent,
};
#else
static const struct clk_ops dpll_m4xen_ck_ops = {};
#endif
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) || \
defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX) || \
defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static const struct clk_ops dpll_core_ck_ops = {
.recalc_rate = &omap3_dpll_recalc,
.get_parent = &omap2_init_dpll_parent,
};
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
};
#endif
static const struct clk_ops dpll_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
@ -67,6 +62,33 @@ static const struct clk_ops dpll_no_gate_ck_ops = {
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
};
#else
static const struct clk_ops dpll_core_ck_ops = {};
static const struct clk_ops dpll_ck_ops = {};
static const struct clk_ops dpll_no_gate_ck_ops = {};
const struct clk_hw_omap_ops clkhwops_omap3_dpll = {};
#endif
#ifdef CONFIG_ARCH_OMAP2
static const struct clk_ops omap2_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap2_dpllcore_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap2_reprogram_dpllcore,
};
#else
static const struct clk_ops omap2_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
};
#else
static const struct clk_ops omap3_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_ck_ops = {
@ -193,14 +215,12 @@ static void ti_clk_register_dpll_x2(struct device_node *node,
* @node: device node containing the DPLL info
* @ops: ops for the DPLL
* @ddt: DPLL data template to use
* @init_flags: flags for controlling init types
*
* Initializes a DPLL clock from device tree data.
*/
static void __init of_ti_dpll_setup(struct device_node *node,
const struct clk_ops *ops,
const struct dpll_data *ddt,
u8 init_flags)
const struct dpll_data *ddt)
{
struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL;
@ -241,13 +261,30 @@ static void __init of_ti_dpll_setup(struct device_node *node,
init->parent_names = parent_names;
dd->control_reg = ti_clk_get_reg_addr(node, 0);
dd->idlest_reg = ti_clk_get_reg_addr(node, 1);
dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2);
if (!dd->control_reg || !dd->idlest_reg || !dd->mult_div1_reg)
/*
* Special case for OMAP2 DPLL, register order is different due to
* missing idlest_reg, also clkhwops is different. Detected from
* missing idlest_mask.
*/
if (!dd->idlest_mask) {
dd->mult_div1_reg = ti_clk_get_reg_addr(node, 1);
#ifdef CONFIG_ARCH_OMAP2
clk_hw->ops = &clkhwops_omap2xxx_dpll;
omap2xxx_clkt_dpllcore_init(&clk_hw->hw);
#endif
} else {
dd->idlest_reg = ti_clk_get_reg_addr(node, 1);
if (!dd->idlest_reg)
goto cleanup;
dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2);
}
if (!dd->control_reg || !dd->mult_div1_reg)
goto cleanup;
if (init_flags & DPLL_HAS_AUTOIDLE) {
if (dd->autoidle_mask) {
dd->autoidle_reg = ti_clk_get_reg_addr(node, 3);
if (!dd->autoidle_reg)
goto cleanup;
@ -310,7 +347,7 @@ static void __init of_ti_omap3_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
of_ti_omap3_dpll_setup);
@ -329,7 +366,7 @@ static void __init of_ti_omap3_core_dpll_setup(struct device_node *node)
.freqsel_mask = 0xf0,
};
of_ti_dpll_setup(node, &omap3_dpll_core_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &omap3_dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_core_dpll_clock, "ti,omap3-dpll-core-clock",
of_ti_omap3_core_dpll_setup);
@ -349,7 +386,7 @@ static void __init of_ti_omap3_per_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_per_dpll_clock, "ti,omap3-dpll-per-clock",
of_ti_omap3_per_dpll_setup);
@ -371,7 +408,7 @@ static void __init of_ti_omap3_per_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_per_jtype_dpll_clock, "ti,omap3-dpll-per-j-type-clock",
of_ti_omap3_per_jtype_dpll_setup);
@ -391,11 +428,32 @@ static void __init of_ti_omap4_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_dpll_clock, "ti,omap4-dpll-clock",
of_ti_omap4_dpll_setup);
static void __init of_ti_omap5_mpu_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.dcc_mask = BIT(22),
.dcc_rate = 1400000000, /* DCC beyond 1.4GHz */
.min_divider = 1,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(of_ti_omap5_mpu_dpll_clock, "ti,omap5-mpu-dpll-clock",
of_ti_omap5_mpu_dpll_setup);
static void __init of_ti_omap4_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
@ -410,7 +468,7 @@ static void __init of_ti_omap4_core_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_core_dpll_clock, "ti,omap4-dpll-core-clock",
of_ti_omap4_core_dpll_setup);
@ -433,7 +491,7 @@ static void __init of_ti_omap4_m4xen_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_m4xen_dpll_clock, "ti,omap4-dpll-m4xen-clock",
of_ti_omap4_m4xen_dpll_setup);
@ -454,7 +512,7 @@ static void __init of_ti_omap4_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd, DPLL_HAS_AUTOIDLE);
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_jtype_dpll_clock, "ti,omap4-dpll-j-type-clock",
of_ti_omap4_jtype_dpll_setup);
@ -465,7 +523,6 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node)
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
@ -474,7 +531,7 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd, 0);
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_no_gate_dpll_clock, "ti,am3-dpll-no-gate-clock",
of_ti_am3_no_gate_dpll_setup);
@ -484,7 +541,6 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node)
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 4095,
@ -494,7 +550,7 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, 0);
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_jtype_dpll_clock, "ti,am3-dpll-j-type-clock",
of_ti_am3_jtype_dpll_setup);
@ -504,7 +560,6 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node)
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
@ -514,7 +569,7 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd, 0);
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_no_gate_jtype_dpll_clock,
"ti,am3-dpll-no-gate-j-type-clock",
@ -525,7 +580,6 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node)
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
@ -534,7 +588,7 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, 0);
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_dpll_clock, "ti,am3-dpll-clock", of_ti_am3_dpll_setup);
@ -543,7 +597,6 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
@ -552,7 +605,22 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd, 0);
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_core_dpll_clock, "ti,am3-dpll-core-clock",
of_ti_am3_core_dpll_setup);
static void __init of_ti_omap2_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.enable_mask = 0x3,
.mult_mask = 0x3ff << 12,
.div1_mask = 0xf << 8,
.max_divider = 16,
.min_divider = 1,
};
of_ti_dpll_setup(node, &omap2_dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap2_core_dpll_clock, "ti,omap2-dpll-core-clock",
of_ti_omap2_core_dpll_setup);

2
drivers/clk/ti/gate.c
View File

@ -185,7 +185,7 @@ of_ti_composite_no_wait_gate_clk_setup(struct device_node *node)
CLK_OF_DECLARE(ti_composite_no_wait_gate_clk, "ti,composite-no-wait-gate-clock",
of_ti_composite_no_wait_gate_clk_setup);
#ifdef CONFIG_ARCH_OMAP3
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
static void __init of_ti_composite_interface_clk_setup(struct device_node *node)
{
_of_ti_composite_gate_clk_setup(node, &clkhwops_iclk_wait);

11
drivers/clk/ti/interface.c
View File

@ -94,6 +94,7 @@ static void __init of_ti_no_wait_interface_clk_setup(struct device_node *node)
CLK_OF_DECLARE(ti_no_wait_interface_clk, "ti,omap3-no-wait-interface-clock",
of_ti_no_wait_interface_clk_setup);
#ifdef CONFIG_ARCH_OMAP3
static void __init of_ti_hsotgusb_interface_clk_setup(struct device_node *node)
{
_of_ti_interface_clk_setup(node,
@ -123,3 +124,13 @@ static void __init of_ti_am35xx_interface_clk_setup(struct device_node *node)
}
CLK_OF_DECLARE(ti_am35xx_interface_clk, "ti,am35xx-interface-clock",
of_ti_am35xx_interface_clk_setup);
#endif
#ifdef CONFIG_SOC_OMAP2430
static void __init of_ti_omap2430_interface_clk_setup(struct device_node *node)
{
_of_ti_interface_clk_setup(node, &clkhwops_omap2430_i2chs_wait);
}
CLK_OF_DECLARE(ti_omap2430_interface_clk, "ti,omap2430-interface-clock",
of_ti_omap2430_interface_clk_setup);
#endif

40
include/dt-bindings/clk/ti-dra7-atl.h Normal file
View File

@ -0,0 +1,40 @@
/*
* This header provides constants for DRA7 ATL (Audio Tracking Logic)
*
* The constants defined in this header are used in dts files
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* Peter Ujfalusi <peter.ujfalusi@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.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _DT_BINDINGS_CLK_DRA7_ATL_H
#define _DT_BINDINGS_CLK_DRA7_ATL_H
#define DRA7_ATL_WS_MCASP1_FSR 0
#define DRA7_ATL_WS_MCASP1_FSX 1
#define DRA7_ATL_WS_MCASP2_FSR 2
#define DRA7_ATL_WS_MCASP2_FSX 3
#define DRA7_ATL_WS_MCASP3_FSX 4
#define DRA7_ATL_WS_MCASP4_FSX 5
#define DRA7_ATL_WS_MCASP5_FSX 6
#define DRA7_ATL_WS_MCASP6_FSX 7
#define DRA7_ATL_WS_MCASP7_FSX 8
#define DRA7_ATL_WS_MCASP8_FSX 9
#define DRA7_ATL_WS_MCASP8_AHCLKX 10
#define DRA7_ATL_WS_XREF_CLK3 11
#define DRA7_ATL_WS_XREF_CLK0 12
#define DRA7_ATL_WS_XREF_CLK1 13
#define DRA7_ATL_WS_XREF_CLK2 14
#define DRA7_ATL_WS_OSC1_X1 15
#endif

35
include/linux/clk/ti.h
View File

@ -41,6 +41,8 @@
* @idlest_reg: register containing the DPLL idle status bitfield
* @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg
* @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg
* @dcc_mask: mask of the DPLL DCC correction bitfield @mult_div1_reg
* @dcc_rate: rate atleast which DCC @dcc_mask must be set
* @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg
* @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg
* @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg
@ -86,6 +88,8 @@ struct dpll_data {
u32 idlest_mask;
u32 dco_mask;
u32 sddiv_mask;
u32 dcc_mask;
unsigned long dcc_rate;
u32 lpmode_mask;
u32 m4xen_mask;
u8 auto_recal_bit;
@ -94,7 +98,26 @@ struct dpll_data {
u8 flags;
};
struct clk_hw_omap_ops;
struct clk_hw_omap;
/**
* struct clk_hw_omap_ops - OMAP clk ops
* @find_idlest: find idlest register information for a clock
* @find_companion: find companion clock register information for a clock,
* basically converts CM_ICLKEN* <-> CM_FCLKEN*
* @allow_idle: enables autoidle hardware functionality for a clock
* @deny_idle: prevent autoidle hardware functionality for a clock
*/
struct clk_hw_omap_ops {
void (*find_idlest)(struct clk_hw_omap *oclk,
void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
void (*find_companion)(struct clk_hw_omap *oclk,
void __iomem **other_reg,
u8 *other_bit);
void (*allow_idle)(struct clk_hw_omap *oclk);
void (*deny_idle)(struct clk_hw_omap *oclk);
};
/**
* struct clk_hw_omap - OMAP struct clk
@ -259,6 +282,12 @@ int omap2_dflt_clk_enable(struct clk_hw *hw);
void omap2_dflt_clk_disable(struct clk_hw *hw);
int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
void omap3_clk_lock_dpll5(void);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
void omap2xxx_clkt_vps_init(void);
void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
void ti_dt_clocks_register(struct ti_dt_clk *oclks);
@ -278,6 +307,8 @@ int omap5xxx_dt_clk_init(void);
int dra7xx_dt_clk_init(void);
int am33xx_dt_clk_init(void);
int am43xx_dt_clk_init(void);
int omap2420_dt_clk_init(void);
int omap2430_dt_clk_init(void);
#ifdef CONFIG_OF
void of_ti_clk_allow_autoidle_all(void);
@ -287,6 +318,8 @@ static inline void of_ti_clk_allow_autoidle_all(void) { }
static inline void of_ti_clk_deny_autoidle_all(void) { }
#endif
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
extern const struct clk_hw_omap_ops clkhwops_wait;