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Merge tag 'armsoc-drivers' into test-merge

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ARM: SoC: driver updates for v4.2

Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.

Some highlights:

- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses

 Conflicts:
	arch/arm64/boot/dts/arm/juno-motherboard.dtsi

 Trivial add/add conflict with our dt branch.
 Resolution: take both sides.

# gpg: Signature made Wed Jun 24 21:32:17 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg:                 aka "Kevin Hilman <khilman@linaro.org>"
# gpg:                 aka "Kevin Hilman <khilman@kernel.org>"

# Conflicts:
#	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
This commit is contained in:
Kevin Hilman
2015-06-24 21:32:26 -07:00
parent 39e79b873e 4af34b572a
commit 32270e805a
57 changed files with 4969 additions and 1070 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/arm/CCN.txt
+10 -7
View File
@@ -33,20 +33,23 @@ directory, with first 8 configurable by user and additional
Cycle counter is described by a "type" value 0xff and does
not require any other settings.
The driver also provides a "cpumask" sysfs attribute, which contains
a single CPU ID, of the processor which will be used to handle all
the CCN PMU events. It is recommended that the user space tools
request the events on this processor (if not, the perf_event->cpu value
will be overwritten anyway). In case of this processor being offlined,
the events are migrated to another one and the attribute is updated.
Example of perf tool use:
/ # perf list | grep ccn
ccn/cycles/ [Kernel PMU event]
<...>
ccn/xp_valid_flit/ [Kernel PMU event]
ccn/xp_valid_flit,xp=?,port=?,vc=?,dir=?/ [Kernel PMU event]
<...>
/ # perf stat -C 0 -e ccn/cycles/,ccn/xp_valid_flit,xp=1,port=0,vc=1,dir=1/ \
/ # perf stat -a -e ccn/cycles/,ccn/xp_valid_flit,xp=1,port=0,vc=1,dir=1/ \
sleep 1
The driver does not support sampling, therefore "perf record" will
not work. Also notice that only single cpu is being selected
("-C 0") - this is because perf framework does not support
"non-CPU related" counters (yet?) so system-wide session ("-a")
would try (and in most cases fail) to set up the same event
per each CPU.
not work. Per-task (without "-a") perf sessions are not supported.
Documentation/devicetree/bindings/arm/cci.txt
+3 -1
View File
@@ -31,8 +31,9 @@ specific to ARM.
- compatible
Usage: required
Value type: <string>
Definition: must be set to
Definition: must contain one of the following:
"arm,cci-400"
"arm,cci-500"
- reg
Usage: required
@@ -99,6 +100,7 @@ specific to ARM.
"arm,cci-400-pmu,r1"
"arm,cci-400-pmu" - DEPRECATED, permitted only where OS has
secure acces to CCI registers
"arm,cci-500-pmu,r0"
- reg:
Usage: required
Value type: Integer cells. A register entry, expressed
Documentation/devicetree/bindings/memory-controllers/nvidia,tegra-mc.txt
+82 -2
View File
@@ -1,6 +1,9 @@
NVIDIA Tegra Memory Controller device tree bindings
===================================================
memory-controller node
----------------------
Required properties:
- compatible: Should be "nvidia,tegra<chip>-mc"
- reg: Physical base address and length of the controller's registers.
@@ -15,9 +18,49 @@ Required properties:
This device implements an IOMMU that complies with the generic IOMMU binding.
See ../iommu/iommu.txt for details.
Example:
--------
emc-timings subnode
-------------------
The node should contain a "emc-timings" subnode for each supported RAM type (see field RAM_CODE in
register PMC_STRAPPING_OPT_A).
Required properties for "emc-timings" nodes :
- nvidia,ram-code : Should contain the value of RAM_CODE this timing set is used for.
timing subnode
--------------
Each "emc-timings" node should contain a subnode for every supported EMC clock rate.
Required properties for timing nodes :
- clock-frequency : Should contain the memory clock rate in Hz.
- nvidia,emem-configuration : Values to be written to the EMEM register block. For the Tegra124 SoC
(see section "15.6.1 MC Registers" in the TRM), these are the registers whose values need to be
specified, according to the board documentation:
MC_EMEM_ARB_CFG
MC_EMEM_ARB_OUTSTANDING_REQ
MC_EMEM_ARB_TIMING_RCD
MC_EMEM_ARB_TIMING_RP
MC_EMEM_ARB_TIMING_RC
MC_EMEM_ARB_TIMING_RAS
MC_EMEM_ARB_TIMING_FAW
MC_EMEM_ARB_TIMING_RRD
MC_EMEM_ARB_TIMING_RAP2PRE
MC_EMEM_ARB_TIMING_WAP2PRE
MC_EMEM_ARB_TIMING_R2R
MC_EMEM_ARB_TIMING_W2W
MC_EMEM_ARB_TIMING_R2W
MC_EMEM_ARB_TIMING_W2R
MC_EMEM_ARB_DA_TURNS
MC_EMEM_ARB_DA_COVERS
MC_EMEM_ARB_MISC0
MC_EMEM_ARB_MISC1
MC_EMEM_ARB_RING1_THROTTLE
Example SoC include file:
/ {
mc: memory-controller@0,70019000 {
compatible = "nvidia,tegra124-mc";
reg = <0x0 0x70019000 0x0 0x1000>;
@@ -34,3 +77,40 @@ Example:
...
iommus = <&mc TEGRA_SWGROUP_SDMMC1A>;
};
};
Example board file:
/ {
memory-controller@0,70019000 {
emc-timings-3 {
nvidia,ram-code = <3>;
timing-12750000 {
clock-frequency = <12750000>;
nvidia,emem-configuration = <
0x40040001 /* MC_EMEM_ARB_CFG */
0x8000000a /* MC_EMEM_ARB_OUTSTANDING_REQ */
0x00000001 /* MC_EMEM_ARB_TIMING_RCD */
0x00000001 /* MC_EMEM_ARB_TIMING_RP */
0x00000002 /* MC_EMEM_ARB_TIMING_RC */
0x00000000 /* MC_EMEM_ARB_TIMING_RAS */
0x00000002 /* MC_EMEM_ARB_TIMING_FAW */
0x00000001 /* MC_EMEM_ARB_TIMING_RRD */
0x00000002 /* MC_EMEM_ARB_TIMING_RAP2PRE */
0x00000008 /* MC_EMEM_ARB_TIMING_WAP2PRE */
0x00000003 /* MC_EMEM_ARB_TIMING_R2R */
0x00000002 /* MC_EMEM_ARB_TIMING_W2W */
0x00000003 /* MC_EMEM_ARB_TIMING_R2W */
0x00000006 /* MC_EMEM_ARB_TIMING_W2R */
0x06030203 /* MC_EMEM_ARB_DA_TURNS */
0x000a0402 /* MC_EMEM_ARB_DA_COVERS */
0x77e30303 /* MC_EMEM_ARB_MISC0 */
0x70000f03 /* MC_EMEM_ARB_MISC1 */
0x001f0000 /* MC_EMEM_ARB_RING1_THROTTLE */
>;
};
};
};
};
Documentation/devicetree/bindings/memory-controllers/tegra-emc.txt
+374
View File
@@ -0,0 +1,374 @@
NVIDIA Tegra124 SoC EMC (external memory controller)
====================================================
Required properties :
- compatible : Should be "nvidia,tegra124-emc".
- reg : physical base address and length of the controller's registers.
- nvidia,memory-controller : phandle of the MC driver.
The node should contain a "emc-timings" subnode for each supported RAM type
(see field RAM_CODE in register PMC_STRAPPING_OPT_A), with its unit address
being its RAM_CODE.
Required properties for "emc-timings" nodes :
- nvidia,ram-code : Should contain the value of RAM_CODE this timing set is
used for.
Each "emc-timings" node should contain a "timing" subnode for every supported
EMC clock rate. The "timing" subnodes should have the clock rate in Hz as
their unit address.
Required properties for "timing" nodes :
- clock-frequency : Should contain the memory clock rate in Hz.
- The following properties contain EMC timing characterization values
(specified in the board documentation) :
- nvidia,emc-auto-cal-config : EMC_AUTO_CAL_CONFIG
- nvidia,emc-auto-cal-config2 : EMC_AUTO_CAL_CONFIG2
- nvidia,emc-auto-cal-config3 : EMC_AUTO_CAL_CONFIG3
- nvidia,emc-auto-cal-interval : EMC_AUTO_CAL_INTERVAL
- nvidia,emc-bgbias-ctl0 : EMC_BGBIAS_CTL0
- nvidia,emc-cfg : EMC_CFG
- nvidia,emc-cfg-2 : EMC_CFG_2
- nvidia,emc-ctt-term-ctrl : EMC_CTT_TERM_CTRL
- nvidia,emc-mode-1 : Mode Register 1
- nvidia,emc-mode-2 : Mode Register 2
- nvidia,emc-mode-4 : Mode Register 4
- nvidia,emc-mode-reset : Mode Register 0
- nvidia,emc-mrs-wait-cnt : EMC_MRS_WAIT_CNT
- nvidia,emc-sel-dpd-ctrl : EMC_SEL_DPD_CTRL
- nvidia,emc-xm2dqspadctrl2 : EMC_XM2DQSPADCTRL2
- nvidia,emc-zcal-cnt-long : EMC_ZCAL_WAIT_CNT after clock change
- nvidia,emc-zcal-interval : EMC_ZCAL_INTERVAL
- nvidia,emc-configuration : EMC timing characterization data. These are the
registers (see section "15.6.2 EMC Registers" in the TRM) whose values need to
be specified, according to the board documentation:
EMC_RC
EMC_RFC
EMC_RFC_SLR
EMC_RAS
EMC_RP
EMC_R2W
EMC_W2R
EMC_R2P
EMC_W2P
EMC_RD_RCD
EMC_WR_RCD
EMC_RRD
EMC_REXT
EMC_WEXT
EMC_WDV
EMC_WDV_MASK
EMC_QUSE
EMC_QUSE_WIDTH
EMC_IBDLY
EMC_EINPUT
EMC_EINPUT_DURATION
EMC_PUTERM_EXTRA
EMC_PUTERM_WIDTH
EMC_PUTERM_ADJ
EMC_CDB_CNTL_1
EMC_CDB_CNTL_2
EMC_CDB_CNTL_3
EMC_QRST
EMC_QSAFE
EMC_RDV
EMC_RDV_MASK
EMC_REFRESH
EMC_BURST_REFRESH_NUM
EMC_PRE_REFRESH_REQ_CNT
EMC_PDEX2WR
EMC_PDEX2RD
EMC_PCHG2PDEN
EMC_ACT2PDEN
EMC_AR2PDEN
EMC_RW2PDEN
EMC_TXSR
EMC_TXSRDLL
EMC_TCKE
EMC_TCKESR
EMC_TPD
EMC_TFAW
EMC_TRPAB
EMC_TCLKSTABLE
EMC_TCLKSTOP
EMC_TREFBW
EMC_FBIO_CFG6
EMC_ODT_WRITE
EMC_ODT_READ
EMC_FBIO_CFG5
EMC_CFG_DIG_DLL
EMC_CFG_DIG_DLL_PERIOD
EMC_DLL_XFORM_DQS0
EMC_DLL_XFORM_DQS1
EMC_DLL_XFORM_DQS2
EMC_DLL_XFORM_DQS3
EMC_DLL_XFORM_DQS4
EMC_DLL_XFORM_DQS5
EMC_DLL_XFORM_DQS6
EMC_DLL_XFORM_DQS7
EMC_DLL_XFORM_DQS8
EMC_DLL_XFORM_DQS9
EMC_DLL_XFORM_DQS10
EMC_DLL_XFORM_DQS11
EMC_DLL_XFORM_DQS12
EMC_DLL_XFORM_DQS13
EMC_DLL_XFORM_DQS14
EMC_DLL_XFORM_DQS15
EMC_DLL_XFORM_QUSE0
EMC_DLL_XFORM_QUSE1
EMC_DLL_XFORM_QUSE2
EMC_DLL_XFORM_QUSE3
EMC_DLL_XFORM_QUSE4
EMC_DLL_XFORM_QUSE5
EMC_DLL_XFORM_QUSE6
EMC_DLL_XFORM_QUSE7
EMC_DLL_XFORM_ADDR0
EMC_DLL_XFORM_ADDR1
EMC_DLL_XFORM_ADDR2
EMC_DLL_XFORM_ADDR3
EMC_DLL_XFORM_ADDR4
EMC_DLL_XFORM_ADDR5
EMC_DLL_XFORM_QUSE8
EMC_DLL_XFORM_QUSE9
EMC_DLL_XFORM_QUSE10
EMC_DLL_XFORM_QUSE11
EMC_DLL_XFORM_QUSE12
EMC_DLL_XFORM_QUSE13
EMC_DLL_XFORM_QUSE14
EMC_DLL_XFORM_QUSE15
EMC_DLI_TRIM_TXDQS0
EMC_DLI_TRIM_TXDQS1
EMC_DLI_TRIM_TXDQS2
EMC_DLI_TRIM_TXDQS3
EMC_DLI_TRIM_TXDQS4
EMC_DLI_TRIM_TXDQS5
EMC_DLI_TRIM_TXDQS6
EMC_DLI_TRIM_TXDQS7
EMC_DLI_TRIM_TXDQS8
EMC_DLI_TRIM_TXDQS9
EMC_DLI_TRIM_TXDQS10
EMC_DLI_TRIM_TXDQS11
EMC_DLI_TRIM_TXDQS12
EMC_DLI_TRIM_TXDQS13
EMC_DLI_TRIM_TXDQS14
EMC_DLI_TRIM_TXDQS15
EMC_DLL_XFORM_DQ0
EMC_DLL_XFORM_DQ1
EMC_DLL_XFORM_DQ2
EMC_DLL_XFORM_DQ3
EMC_DLL_XFORM_DQ4
EMC_DLL_XFORM_DQ5
EMC_DLL_XFORM_DQ6
EMC_DLL_XFORM_DQ7
EMC_XM2CMDPADCTRL
EMC_XM2CMDPADCTRL4
EMC_XM2CMDPADCTRL5
EMC_XM2DQPADCTRL2
EMC_XM2DQPADCTRL3
EMC_XM2CLKPADCTRL
EMC_XM2CLKPADCTRL2
EMC_XM2COMPPADCTRL
EMC_XM2VTTGENPADCTRL
EMC_XM2VTTGENPADCTRL2
EMC_XM2VTTGENPADCTRL3
EMC_XM2DQSPADCTRL3
EMC_XM2DQSPADCTRL4
EMC_XM2DQSPADCTRL5
EMC_XM2DQSPADCTRL6
EMC_DSR_VTTGEN_DRV
EMC_TXDSRVTTGEN
EMC_FBIO_SPARE
EMC_ZCAL_WAIT_CNT
EMC_MRS_WAIT_CNT2
EMC_CTT
EMC_CTT_DURATION
EMC_CFG_PIPE
EMC_DYN_SELF_REF_CONTROL
EMC_QPOP
Example SoC include file:
/ {
emc@0,7001b000 {
compatible = "nvidia,tegra124-emc";
reg = <0x0 0x7001b000 0x0 0x1000>;
nvidia,memory-controller = <&mc>;
};
};
Example board file:
/ {
emc@0,7001b000 {
emc-timings-3 {
nvidia,ram-code = <3>;
timing-12750000 {
clock-frequency = <12750000>;
nvidia,emc-zcal-cnt-long = <0x00000042>;
nvidia,emc-auto-cal-interval = <0x001fffff>;
nvidia,emc-ctt-term-ctrl = <0x00000802>;
nvidia,emc-cfg = <0x73240000>;
nvidia,emc-cfg-2 = <0x000008c5>;
nvidia,emc-sel-dpd-ctrl = <0x00040128>;
nvidia,emc-bgbias-ctl0 = <0x00000008>;
nvidia,emc-auto-cal-config = <0xa1430000>;
nvidia,emc-auto-cal-config2 = <0x00000000>;
nvidia,emc-auto-cal-config3 = <0x00000000>;
nvidia,emc-mode-reset = <0x80001221>;
nvidia,emc-mode-1 = <0x80100003>;
nvidia,emc-mode-2 = <0x80200008>;
nvidia,emc-mode-4 = <0x00000000>;
nvidia,emc-configuration = <
0x00000000 /* EMC_RC */
0x00000003 /* EMC_RFC */
0x00000000 /* EMC_RFC_SLR */
0x00000000 /* EMC_RAS */
0x00000000 /* EMC_RP */
0x00000004 /* EMC_R2W */
0x0000000a /* EMC_W2R */
0x00000003 /* EMC_R2P */
0x0000000b /* EMC_W2P */
0x00000000 /* EMC_RD_RCD */
0x00000000 /* EMC_WR_RCD */
0x00000003 /* EMC_RRD */
0x00000003 /* EMC_REXT */
0x00000000 /* EMC_WEXT */
0x00000006 /* EMC_WDV */
0x00000006 /* EMC_WDV_MASK */
0x00000006 /* EMC_QUSE */
0x00000002 /* EMC_QUSE_WIDTH */
0x00000000 /* EMC_IBDLY */
0x00000005 /* EMC_EINPUT */
0x00000005 /* EMC_EINPUT_DURATION */
0x00010000 /* EMC_PUTERM_EXTRA */
0x00000003 /* EMC_PUTERM_WIDTH */
0x00000000 /* EMC_PUTERM_ADJ */
0x00000000 /* EMC_CDB_CNTL_1 */
0x00000000 /* EMC_CDB_CNTL_2 */
0x00000000 /* EMC_CDB_CNTL_3 */
0x00000004 /* EMC_QRST */
0x0000000c /* EMC_QSAFE */
0x0000000d /* EMC_RDV */
0x0000000f /* EMC_RDV_MASK */
0x00000060 /* EMC_REFRESH */
0x00000000 /* EMC_BURST_REFRESH_NUM */
0x00000018 /* EMC_PRE_REFRESH_REQ_CNT */
0x00000002 /* EMC_PDEX2WR */
0x00000002 /* EMC_PDEX2RD */
0x00000001 /* EMC_PCHG2PDEN */
0x00000000 /* EMC_ACT2PDEN */
0x00000007 /* EMC_AR2PDEN */
0x0000000f /* EMC_RW2PDEN */
0x00000005 /* EMC_TXSR */
0x00000005 /* EMC_TXSRDLL */
0x00000004 /* EMC_TCKE */
0x00000005 /* EMC_TCKESR */
0x00000004 /* EMC_TPD */
0x00000000 /* EMC_TFAW */
0x00000000 /* EMC_TRPAB */
0x00000005 /* EMC_TCLKSTABLE */
0x00000005 /* EMC_TCLKSTOP */
0x00000064 /* EMC_TREFBW */
0x00000000 /* EMC_FBIO_CFG6 */
0x00000000 /* EMC_ODT_WRITE */
0x00000000 /* EMC_ODT_READ */
0x106aa298 /* EMC_FBIO_CFG5 */
0x002c00a0 /* EMC_CFG_DIG_DLL */
0x00008000 /* EMC_CFG_DIG_DLL_PERIOD */
0x00064000 /* EMC_DLL_XFORM_DQS0 */
0x00064000 /* EMC_DLL_XFORM_DQS1 */
0x00064000 /* EMC_DLL_XFORM_DQS2 */
0x00064000 /* EMC_DLL_XFORM_DQS3 */
0x00064000 /* EMC_DLL_XFORM_DQS4 */
0x00064000 /* EMC_DLL_XFORM_DQS5 */
0x00064000 /* EMC_DLL_XFORM_DQS6 */
0x00064000 /* EMC_DLL_XFORM_DQS7 */
0x00064000 /* EMC_DLL_XFORM_DQS8 */
0x00064000 /* EMC_DLL_XFORM_DQS9 */
0x00064000 /* EMC_DLL_XFORM_DQS10 */
0x00064000 /* EMC_DLL_XFORM_DQS11 */
0x00064000 /* EMC_DLL_XFORM_DQS12 */
0x00064000 /* EMC_DLL_XFORM_DQS13 */
0x00064000 /* EMC_DLL_XFORM_DQS14 */
0x00064000 /* EMC_DLL_XFORM_DQS15 */
0x00000000 /* EMC_DLL_XFORM_QUSE0 */
0x00000000 /* EMC_DLL_XFORM_QUSE1 */
0x00000000 /* EMC_DLL_XFORM_QUSE2 */
0x00000000 /* EMC_DLL_XFORM_QUSE3 */
0x00000000 /* EMC_DLL_XFORM_QUSE4 */
0x00000000 /* EMC_DLL_XFORM_QUSE5 */
0x00000000 /* EMC_DLL_XFORM_QUSE6 */
0x00000000 /* EMC_DLL_XFORM_QUSE7 */
0x00000000 /* EMC_DLL_XFORM_ADDR0 */
0x00000000 /* EMC_DLL_XFORM_ADDR1 */
0x00000000 /* EMC_DLL_XFORM_ADDR2 */
0x00000000 /* EMC_DLL_XFORM_ADDR3 */
0x00000000 /* EMC_DLL_XFORM_ADDR4 */
0x00000000 /* EMC_DLL_XFORM_ADDR5 */
0x00000000 /* EMC_DLL_XFORM_QUSE8 */
0x00000000 /* EMC_DLL_XFORM_QUSE9 */
0x00000000 /* EMC_DLL_XFORM_QUSE10 */
0x00000000 /* EMC_DLL_XFORM_QUSE11 */
0x00000000 /* EMC_DLL_XFORM_QUSE12 */
0x00000000 /* EMC_DLL_XFORM_QUSE13 */
0x00000000 /* EMC_DLL_XFORM_QUSE14 */
0x00000000 /* EMC_DLL_XFORM_QUSE15 */
0x00000000 /* EMC_DLI_TRIM_TXDQS0 */
0x00000000 /* EMC_DLI_TRIM_TXDQS1 */
0x00000000 /* EMC_DLI_TRIM_TXDQS2 */
0x00000000 /* EMC_DLI_TRIM_TXDQS3 */
0x00000000 /* EMC_DLI_TRIM_TXDQS4 */
0x00000000 /* EMC_DLI_TRIM_TXDQS5 */
0x00000000 /* EMC_DLI_TRIM_TXDQS6 */
0x00000000 /* EMC_DLI_TRIM_TXDQS7 */
0x00000000 /* EMC_DLI_TRIM_TXDQS8 */
0x00000000 /* EMC_DLI_TRIM_TXDQS9 */
0x00000000 /* EMC_DLI_TRIM_TXDQS10 */
0x00000000 /* EMC_DLI_TRIM_TXDQS11 */
0x00000000 /* EMC_DLI_TRIM_TXDQS12 */
0x00000000 /* EMC_DLI_TRIM_TXDQS13 */
0x00000000 /* EMC_DLI_TRIM_TXDQS14 */
0x00000000 /* EMC_DLI_TRIM_TXDQS15 */
0x000fc000 /* EMC_DLL_XFORM_DQ0 */
0x000fc000 /* EMC_DLL_XFORM_DQ1 */
0x000fc000 /* EMC_DLL_XFORM_DQ2 */
0x000fc000 /* EMC_DLL_XFORM_DQ3 */
0x0000fc00 /* EMC_DLL_XFORM_DQ4 */
0x0000fc00 /* EMC_DLL_XFORM_DQ5 */
0x0000fc00 /* EMC_DLL_XFORM_DQ6 */
0x0000fc00 /* EMC_DLL_XFORM_DQ7 */
0x10000280 /* EMC_XM2CMDPADCTRL */
0x00000000 /* EMC_XM2CMDPADCTRL4 */
0x00111111 /* EMC_XM2CMDPADCTRL5 */
0x00000000 /* EMC_XM2DQPADCTRL2 */
0x00000000 /* EMC_XM2DQPADCTRL3 */
0x77ffc081 /* EMC_XM2CLKPADCTRL */
0x00000e0e /* EMC_XM2CLKPADCTRL2 */
0x81f1f108 /* EMC_XM2COMPPADCTRL */
0x07070004 /* EMC_XM2VTTGENPADCTRL */
0x0000003f /* EMC_XM2VTTGENPADCTRL2 */
0x016eeeee /* EMC_XM2VTTGENPADCTRL3 */
0x51451400 /* EMC_XM2DQSPADCTRL3 */
0x00514514 /* EMC_XM2DQSPADCTRL4 */
0x00514514 /* EMC_XM2DQSPADCTRL5 */
0x51451400 /* EMC_XM2DQSPADCTRL6 */
0x0000003f /* EMC_DSR_VTTGEN_DRV */
0x00000007 /* EMC_TXDSRVTTGEN */
0x00000000 /* EMC_FBIO_SPARE */
0x00000042 /* EMC_ZCAL_WAIT_CNT */
0x000e000e /* EMC_MRS_WAIT_CNT2 */
0x00000000 /* EMC_CTT */
0x00000003 /* EMC_CTT_DURATION */
0x0000f2f3 /* EMC_CFG_PIPE */
0x800001c5 /* EMC_DYN_SELF_REF_CONTROL */
0x0000000a /* EMC_QPOP */
>;
};
};
};
};
Documentation/devicetree/bindings/mfd/mfd.txt
+41
View File
@@ -0,0 +1,41 @@
Multi-Function Devices (MFD)
These devices comprise a nexus for heterogeneous hardware blocks containing
more than one non-unique yet varying hardware functionality.
A typical MFD can be:
- A mixed signal ASIC on an external bus, sometimes a PMIC (Power Management
Integrated Circuit) that is manufactured in a lower technology node (rough
silicon) that handles analog drivers for things like audio amplifiers, LED
drivers, level shifters, PHY (physical interfaces to things like USB or
ethernet), regulators etc.
- A range of memory registers containing "miscellaneous system registers" also
known as a system controller "syscon" or any other memory range containing a
mix of unrelated hardware devices.
Optional properties:
- compatible : "simple-mfd" - this signifies that the operating system should
consider all subnodes of the MFD device as separate devices akin to how
"simple-bus" inidicates when to see subnodes as children for a simple
memory-mapped bus. For more complex devices, when the nexus driver has to
probe registers to figure out what child devices exist etc, this should not
be used. In the latter case the child devices will be determined by the
operating system.
Example:
foo@1000 {
compatible = "syscon", "simple-mfd";
reg = <0x01000 0x1000>;
led@08.0 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x01>;
label = "myled";
default-state = "on";
};
};
Documentation/devicetree/bindings/misc/nvidia,tegra20-apbmisc.txt
+2
View File
@@ -10,3 +10,5 @@ Required properties:
The second entry gives the physical address and length of the
registers indicating the strapping options.
Optional properties:
- nvidia,long-ram-code: If present, the RAM code is long (4 bit). If not, short (2 bit).
Documentation/devicetree/bindings/soc/sunxi/sram.txt
+72
View File
@@ -0,0 +1,72 @@
Allwinnner SoC SRAM controllers
-----------------------------------------------------
The SRAM controller found on most Allwinner devices is represented by
a regular node for the SRAM controller itself, with sub-nodes
reprensenting the SRAM handled by the SRAM controller.
Controller Node
---------------
Required properties:
- compatible : "allwinner,sun4i-a10-sram-controller"
- reg : sram controller register offset + length
SRAM nodes
----------
Each SRAM is described using the mmio-sram bindings documented in
Documentation/devicetree/bindings/misc/sram.txt
Each SRAM will have SRAM sections that are going to be handled by the
SRAM controller as subnodes. These sections are represented following
once again the representation described in the mmio-sram binding.
The valid sections compatible are:
- allwinner,sun4i-a10-sram-a3-a4
- allwinner,sun4i-a10-sram-d
Devices using SRAM sections
---------------------------
Some devices need to request to the SRAM controller to map an SRAM for
their exclusive use.
The relationship between such a device and an SRAM section is
expressed through the allwinner,sram property, that will take a
phandle and an argument.
This valid values for this argument are:
- 0: CPU
- 1: Device
Example
-------
sram-controller@01c00000 {
compatible = "allwinner,sun4i-a10-sram-controller";
reg = <0x01c00000 0x30>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
sram_a: sram@00000000 {
compatible = "mmio-sram";
reg = <0x00000000 0xc000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x00000000 0xc000>;
emac_sram: sram-section@8000 {
compatible = "allwinner,sun4i-a10-sram-a3-a4";
reg = <0x8000 0x4000>;
status = "disabled";
};
};
};
emac: ethernet@01c0b000 {
compatible = "allwinner,sun4i-a10-emac";
...
allwinner,sram = <&emac_sram 1>;
};
arch/arm/boot/dts/arm-realview-pb1176.dts
+1 -1
View File
@@ -114,7 +114,7 @@
ranges;
syscon: syscon@10000000 {
compatible = "arm,realview-pb1176-syscon", "syscon";
compatible = "arm,realview-pb1176-syscon", "syscon", "simple-mfd";
reg = <0x10000000 0x1000>;
led@08.0 {
arch/arm/boot/dts/berlin2.dtsi
+51 -37
View File
@@ -84,7 +84,7 @@
sdhci0: sdhci@ab0000 {
compatible = "mrvl,pxav3-mmc";
reg = <0xab0000 0x200>;
clocks = <&chip CLKID_SDIO0XIN>, <&chip CLKID_SDIO0>;
clocks = <&chip_clk CLKID_SDIO0XIN>, <&chip_clk CLKID_SDIO0>;
clock-names = "io", "core";
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -93,7 +93,7 @@
sdhci1: sdhci@ab0800 {
compatible = "mrvl,pxav3-mmc";
reg = <0xab0800 0x200>;
clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
clocks = <&chip_clk CLKID_SDIO1XIN>, <&chip_clk CLKID_SDIO1>;
clock-names = "io", "core";
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -103,7 +103,7 @@
compatible = "mrvl,pxav3-mmc";
reg = <0xab1000 0x200>;
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_NFC_ECC>, <&chip CLKID_NFC>;
clocks = <&chip_clk CLKID_NFC_ECC>, <&chip_clk CLKID_NFC>;
clock-names = "io", "core";
pinctrl-0 = <&emmc_pmux>;
pinctrl-names = "default";
@@ -133,13 +133,13 @@
compatible = "arm,cortex-a9-twd-timer";
reg = <0xad0600 0x20>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
clocks = <&chip CLKID_TWD>;
clocks = <&chip_clk CLKID_TWD>;
};
eth1: ethernet@b90000 {
compatible = "marvell,pxa168-eth";
reg = <0xb90000 0x10000>;
clocks = <&chip CLKID_GETH1>;
clocks = <&chip_clk CLKID_GETH1>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
/* set by bootloader */
local-mac-address = [00 00 00 00 00 00];
@@ -162,7 +162,7 @@
eth0: ethernet@e50000 {
compatible = "marvell,pxa168-eth";
reg = <0xe50000 0x10000>;
clocks = <&chip CLKID_GETH0>;
clocks = <&chip_clk CLKID_GETH0>;
interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
/* set by bootloader */
local-mac-address = [00 00 00 00 00 00];
@@ -261,7 +261,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c00 0x14>;
interrupts = <8>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "okay";
};
@@ -270,7 +270,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c14 0x14>;
interrupts = <9>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "okay";
};
@@ -279,7 +279,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c28 0x14>;
interrupts = <10>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -288,7 +288,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c3c 0x14>;
interrupts = <11>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -297,7 +297,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c50 0x14>;
interrupts = <12>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -306,7 +306,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c64 0x14>;
interrupts = <13>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -315,7 +315,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c78 0x14>;
interrupts = <14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -324,7 +324,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c8c 0x14>;
interrupts = <15>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -343,7 +343,7 @@
compatible = "marvell,berlin2-ahci", "generic-ahci";
reg = <0xe90000 0x1000>;
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_SATA>;
clocks = <&chip_clk CLKID_SATA>;
#address-cells = <1>;
#size-cells = <0>;
@@ -363,7 +363,7 @@
sata_phy: phy@e900a0 {
compatible = "marvell,berlin2-sata-phy";
reg = <0xe900a0 0x200>;
clocks = <&chip CLKID_SATA>;
clocks = <&chip_clk CLKID_SATA>;
#address-cells = <1>;
#size-cells = <0>;
#phy-cells = <1>;
@@ -379,16 +379,28 @@
};
chip: chip-control@ea0000 {
compatible = "marvell,berlin2-chip-ctrl";
#clock-cells = <1>;
#reset-cells = <2>;
compatible = "simple-mfd", "syscon";
reg = <0xea0000 0x400>;
clocks = <&refclk>;
clock-names = "refclk";
emmc_pmux: emmc-pmux {
groups = "G26";
function = "emmc";
chip_clk: clock {
compatible = "marvell,berlin2-clk";
#clock-cells = <1>;
clocks = <&refclk>;
clock-names = "refclk";
};
soc_pinctrl: pin-controller {
compatible = "marvell,berlin2-soc-pinctrl";
emmc_pmux: emmc-pmux {
groups = "G26";
function = "emmc";
};
};
chip_rst: reset {
compatible = "marvell,berlin2-reset";
#reset-cells = <2>;
};
};
@@ -470,22 +482,24 @@
};
sysctrl: system-controller@d000 {
compatible = "marvell,berlin2-system-ctrl";
compatible = "simple-mfd", "syscon";
reg = <0xd000 0x100>;
uart0_pmux: uart0-pmux {
groups = "GSM4";
function = "uart0";
};
sys_pinctrl: pin-controller {
compatible = "marvell,berlin2-system-pinctrl";
uart0_pmux: uart0-pmux {
groups = "GSM4";
function = "uart0";
};
uart1_pmux: uart1-pmux {
groups = "GSM5";
function = "uart1";
};
uart2_pmux: uart2-pmux {
groups = "GSM3";
function = "uart2";
uart1_pmux: uart1-pmux {
groups = "GSM5";
function = "uart1";
};
uart2_pmux: uart2-pmux {
groups = "GSM3";
function = "uart2";
};
};
};
arch/arm/boot/dts/berlin2cd.dtsi
+41 -25
View File
@@ -81,7 +81,7 @@
sdhci0: sdhci@ab0000 {
compatible = "mrvl,pxav3-mmc";
reg = <0xab0000 0x200>;
clocks = <&chip CLKID_SDIO0XIN>, <&chip CLKID_SDIO0>;
clocks = <&chip_clk CLKID_SDIO0XIN>, <&chip_clk CLKID_SDIO0>;
clock-names = "io", "core";
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -105,14 +105,14 @@
compatible = "arm,cortex-a9-twd-timer";
reg = <0xad0600 0x20>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
clocks = <&chip CLKID_TWD>;
clocks = <&chip_clk CLKID_TWD>;
};
usb_phy0: usb-phy@b74000 {
compatible = "marvell,berlin2cd-usb-phy";
reg = <0xb74000 0x128>;
#phy-cells = <0>;
resets = <&chip 0x178 23>;
resets = <&chip_rst 0x178 23>;
status = "disabled";
};
@@ -120,14 +120,14 @@
compatible = "marvell,berlin2cd-usb-phy";
reg = <0xb78000 0x128>;
#phy-cells = <0>;
resets = <&chip 0x178 24>;
resets = <&chip_rst 0x178 24>;
status = "disabled";
};
eth1: ethernet@b90000 {
compatible = "marvell,pxa168-eth";
reg = <0xb90000 0x10000>;
clocks = <&chip CLKID_GETH1>;
clocks = <&chip_clk CLKID_GETH1>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
/* set by bootloader */
local-mac-address = [00 00 00 00 00 00];
@@ -145,7 +145,7 @@
eth0: ethernet@e50000 {
compatible = "marvell,pxa168-eth";
reg = <0xe50000 0x10000>;
clocks = <&chip CLKID_GETH0>;
clocks = <&chip_clk CLKID_GETH0>;
interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
/* set by bootloader */
local-mac-address = [00 00 00 00 00 00];
@@ -244,7 +244,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c00 0x14>;
interrupts = <8>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "okay";
};
@@ -253,7 +253,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c14 0x14>;
interrupts = <9>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "okay";
};
@@ -262,7 +262,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c28 0x14>;
interrupts = <10>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -271,7 +271,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c3c 0x14>;
interrupts = <11>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -280,7 +280,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c50 0x14>;
interrupts = <12>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -289,7 +289,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c64 0x14>;
interrupts = <13>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -298,7 +298,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c78 0x14>;
interrupts = <14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -307,7 +307,7 @@
compatible = "snps,dw-apb-timer";
reg = <0x2c8c 0x14>;
interrupts = <15>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -323,16 +323,28 @@
};
chip: chip-control@ea0000 {
compatible = "marvell,berlin2cd-chip-ctrl";
#clock-cells = <1>;
#reset-cells = <2>;
compatible = "simple-mfd", "syscon";
reg = <0xea0000 0x400>;
clocks = <&refclk>;
clock-names = "refclk";
uart0_pmux: uart0-pmux {
groups = "G6";
function = "uart0";
chip_clk: clock {
compatible = "marvell,berlin2-clk";
#clock-cells = <1>;
clocks = <&refclk>;
clock-names = "refclk";
};
soc_pinctrl: pin-controller {
compatible = "marvell,berlin2cd-soc-pinctrl";
uart0_pmux: uart0-pmux {
groups = "G6";
function = "uart0";
};
};
chip_rst: reset {
compatible = "marvell,berlin2-reset";
#reset-cells = <2>;
};
};
@@ -340,7 +352,7 @@
compatible = "chipidea,usb2";
reg = <0xed0000 0x200>;
interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_USB0>;
clocks = <&chip_clk CLKID_USB0>;
phys = <&usb_phy0>;
phy-names = "usb-phy";
status = "disabled";
@@ -350,7 +362,7 @@
compatible = "chipidea,usb2";
reg = <0xee0000 0x200>;
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_USB1>;
clocks = <&chip_clk CLKID_USB1>;
phys = <&usb_phy1>;
phy-names = "usb-phy";
status = "disabled";
@@ -417,8 +429,12 @@
};
sysctrl: system-controller@d000 {
compatible = "marvell,berlin2cd-system-ctrl";
compatible = "simple-mfd", "syscon";
reg = <0xd000 0x100>;
sys_pinctrl: pin-controller {
compatible = "marvell,berlin2cd-system-pinctrl";
};
};
sic: interrupt-controller@e000 {
arch/arm/boot/dts/berlin2q.dtsi
+73 -51
View File
@@ -102,7 +102,7 @@
sdhci0: sdhci@ab0000 {
compatible = "mrvl,pxav3-mmc";
reg = <0xab0000 0x200>;
clocks = <&chip CLKID_SDIO1XIN>;
clocks = <&chip_clk CLKID_SDIO1XIN>;
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
@@ -110,7 +110,7 @@
sdhci1: sdhci@ab0800 {
compatible = "mrvl,pxav3-mmc";
reg = <0xab0800 0x200>;
clocks = <&chip CLKID_SDIO1XIN>;
clocks = <&chip_clk CLKID_SDIO1XIN>;
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
@@ -119,7 +119,7 @@
compatible = "mrvl,pxav3-mmc";
reg = <0xab1000 0x200>;
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_NFC_ECC>, <&chip CLKID_NFC>;
clocks = <&chip_clk CLKID_NFC_ECC>, <&chip_clk CLKID_NFC>;
clock-names = "io", "core";
status = "disabled";
};
@@ -140,7 +140,7 @@
local-timer@ad0600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0xad0600 0x20>;
clocks = <&chip CLKID_TWD>;
clocks = <&chip_clk CLKID_TWD>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
};
@@ -155,7 +155,7 @@
compatible = "marvell,berlin2-usb-phy";
reg = <0xa2f400 0x128>;
#phy-cells = <0>;
resets = <&chip 0x104 14>;
resets = <&chip_rst 0x104 14>;
status = "disabled";
};
@@ -163,7 +163,7 @@
compatible = "chipidea,usb2";
reg = <0xa30000 0x10000>;
interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_USB2>;
clocks = <&chip_clk CLKID_USB2>;
phys = <&usb_phy2>;
phy-names = "usb-phy";
status = "disabled";
@@ -173,7 +173,7 @@
compatible = "marvell,berlin2-usb-phy";
reg = <0xb74000 0x128>;
#phy-cells = <0>;
resets = <&chip 0x104 12>;
resets = <&chip_rst 0x104 12>;
status = "disabled";
};
@@ -181,14 +181,14 @@
compatible = "marvell,berlin2-usb-phy";
reg = <0xb78000 0x128>;
#phy-cells = <0>;
resets = <&chip 0x104 13>;
resets = <&chip_rst 0x104 13>;
status = "disabled";
};
eth0: ethernet@b90000 {
compatible = "marvell,pxa168-eth";
reg = <0xb90000 0x10000>;
clocks = <&chip CLKID_GETH0>;
clocks = <&chip_clk CLKID_GETH0>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
/* set by bootloader */
local-mac-address = [00 00 00 00 00 00];
@@ -295,7 +295,7 @@
reg = <0x1400 0x100>;
interrupt-parent = <&aic>;
interrupts = <4>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
pinctrl-0 = <&twsi0_pmux>;
pinctrl-names = "default";
status = "disabled";
@@ -308,7 +308,7 @@
reg = <0x1800 0x100>;
interrupt-parent = <&aic>;
interrupts = <5>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
pinctrl-0 = <&twsi1_pmux>;
pinctrl-names = "default";
status = "disabled";
@@ -317,7 +317,7 @@
timer0: timer@2c00 {
compatible = "snps,dw-apb-timer";
reg = <0x2c00 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
interrupts = <8>;
};
@@ -325,14 +325,14 @@
timer1: timer@2c14 {
compatible = "snps,dw-apb-timer";
reg = <0x2c14 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
};
timer2: timer@2c28 {
compatible = "snps,dw-apb-timer";
reg = <0x2c28 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -340,7 +340,7 @@
timer3: timer@2c3c {
compatible = "snps,dw-apb-timer";
reg = <0x2c3c 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -348,7 +348,7 @@
timer4: timer@2c50 {
compatible = "snps,dw-apb-timer";
reg = <0x2c50 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -356,7 +356,7 @@
timer5: timer@2c64 {
compatible = "snps,dw-apb-timer";
reg = <0x2c64 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -364,7 +364,7 @@
timer6: timer@2c78 {
compatible = "snps,dw-apb-timer";
reg = <0x2c78 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -372,7 +372,7 @@
timer7: timer@2c8c {
compatible = "snps,dw-apb-timer";
reg = <0x2c8c 0x14>;
clocks = <&chip CLKID_CFG>;
clocks = <&chip_clk CLKID_CFG>;
clock-names = "timer";
status = "disabled";
};
@@ -388,21 +388,33 @@
};
chip: chip-control@ea0000 {
compatible = "marvell,berlin2q-chip-ctrl";
#clock-cells = <1>;
#reset-cells = <2>;
compatible = "simple-mfd", "syscon";
reg = <0xea0000 0x400>, <0xdd0170 0x10>;
clocks = <&refclk>;
clock-names = "refclk";
twsi0_pmux: twsi0-pmux {
groups = "G6";
function = "twsi0";
chip_clk: clock {
compatible = "marvell,berlin2q-clk";
#clock-cells = <1>;
clocks = <&refclk>;
clock-names = "refclk";
};
twsi1_pmux: twsi1-pmux {
groups = "G7";
function = "twsi1";
soc_pinctrl: pin-controller {
compatible = "marvell,berlin2q-soc-pinctrl";
twsi0_pmux: twsi0-pmux {
groups = "G6";
function = "twsi0";
};
twsi1_pmux: twsi1-pmux {
groups = "G7";
function = "twsi1";
};
};
chip_rst: reset {
compatible = "marvell,berlin2-reset";
#reset-cells = <2>;
};
};
@@ -410,7 +422,7 @@
compatible = "marvell,berlin2q-ahci", "generic-ahci";
reg = <0xe90000 0x1000>;
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_SATA>;
clocks = <&chip_clk CLKID_SATA>;
#address-cells = <1>;
#size-cells = <0>;
@@ -430,7 +442,7 @@
sata_phy: phy@e900a0 {
compatible = "marvell,berlin2q-sata-phy";
reg = <0xe900a0 0x200>;
clocks = <&chip CLKID_SATA>;
clocks = <&chip_clk CLKID_SATA>;
#address-cells = <1>;
#size-cells = <0>;
#phy-cells = <1>;
@@ -449,7 +461,7 @@
compatible = "chipidea,usb2";
reg = <0xed0000 0x10000>;
interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_USB0>;
clocks = <&chip_clk CLKID_USB0>;
phys = <&usb_phy0>;
phy-names = "usb-phy";
status = "disabled";
@@ -459,7 +471,7 @@
compatible = "chipidea,usb2";
reg = <0xee0000 0x10000>;
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&chip CLKID_USB1>;
clocks = <&chip_clk CLKID_USB1>;
phys = <&usb_phy1>;
phy-names = "usb-phy";
status = "disabled";
@@ -554,27 +566,37 @@
};
sysctrl: pin-controller@d000 {
compatible = "marvell,berlin2q-system-ctrl";
compatible = "simple-mfd", "syscon";
reg = <0xd000 0x100>;
uart0_pmux: uart0-pmux {
groups = "GSM12";
function = "uart0";
sys_pinctrl: pin-controller {
compatible = "marvell,berlin2q-system-pinctrl";
uart0_pmux: uart0-pmux {
groups = "GSM12";
function = "uart0";
};
uart1_pmux: uart1-pmux {
groups = "GSM14";
function = "uart1";
};
twsi2_pmux: twsi2-pmux {
groups = "GSM13";
function = "twsi2";
};
twsi3_pmux: twsi3-pmux {
groups = "GSM14";
function = "twsi3";
};
};
uart1_pmux: uart1-pmux {
groups = "GSM14";
function = "uart1";
};
twsi2_pmux: twsi2-pmux {
groups = "GSM13";
function = "twsi2";
};
twsi3_pmux: twsi3-pmux {
groups = "GSM14";
function = "twsi3";
adc: adc {
compatible = "marvell,berlin2-adc";
interrupts = <12>, <14>;
interrupt-names = "adc", "tsen";
};
};
arch/arm/boot/dts/integrator.dtsi
+2 -2
View File
@@ -6,7 +6,7 @@
/ {
core-module@10000000 {
compatible = "arm,core-module-integrator", "syscon";
compatible = "arm,core-module-integrator", "syscon", "simple-mfd";
reg = <0x10000000 0x200>;
/* Use core module LED to indicate CPU load */
@@ -95,7 +95,7 @@
syscon {
/* Debug registers mapped as syscon */
compatible = "syscon";
compatible = "syscon", "simple-mfd";
reg = <0x1a000000 0x10>;
led@04.0 {
arch/arm/mach-berlin/Kconfig
+1
View File
@@ -6,6 +6,7 @@ menuconfig ARCH_BERLIN
select DW_APB_ICTL
select DW_APB_TIMER_OF
select GENERIC_IRQ_CHIP
select MFD_SYSCON
select PINCTRL
if ARCH_BERLIN
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
+68
View File
@@ -138,6 +138,74 @@
clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
};
apbregs@010000 {
compatible = "syscon", "simple-mfd";
reg = <0x010000 0x1000>;
led@08.0 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x01>;
label = "vexpress:0";
linux,default-trigger = "heartbeat";
default-state = "on";
};
led@08.1 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x02>;
label = "vexpress:1";
linux,default-trigger = "mmc0";
default-state = "off";
};
led@08.2 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x04>;
label = "vexpress:2";
linux,default-trigger = "cpu0";
default-state = "off";
};
led@08.3 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x08>;
label = "vexpress:3";
linux,default-trigger = "cpu1";
default-state = "off";
};
led@08.4 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x10>;
label = "vexpress:4";
linux,default-trigger = "cpu2";
default-state = "off";
};
led@08.5 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x20>;
label = "vexpress:5";
linux,default-trigger = "cpu3";
default-state = "off";
};
led@08.6 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x40>;
label = "vexpress:6";
default-state = "off";
};
led@08.7 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x80>;
label = "vexpress:7";
default-state = "off";
};
};
mmci@050000 {
compatible = "arm,pl180", "arm,primecell";
reg = <0x050000 0x1000>;
arch/arm64/configs/defconfig
+6
View File
@@ -139,6 +139,12 @@ CONFIG_MMC_ARMMMCI=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SPI=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_SYSCON=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_RTC_DRV_XGENE=y
drivers/bus/Kconfig
+24 -7
View File
@@ -7,21 +7,24 @@ menu "Bus devices"
config ARM_CCI
bool
config ARM_CCI_PMU
bool
select ARM_CCI
config ARM_CCI400_COMMON
bool
select ARM_CCI
config ARM_CCI400_PMU
bool "ARM CCI400 PMU support"
default y
depends on ARM || ARM64
depends on HW_PERF_EVENTS
depends on (ARM && CPU_V7) || ARM64
depends on PERF_EVENTS
select ARM_CCI400_COMMON
select ARM_CCI_PMU
help
Support for PMU events monitoring on the ARM CCI cache coherent
interconnect.
If unsure, say Y
Support for PMU events monitoring on the ARM CCI-400 (cache coherent
interconnect). CCI-400 supports counting events related to the
connected slave/master interfaces.
config ARM_CCI400_PORT_CTRL
bool
@@ -31,6 +34,20 @@ config ARM_CCI400_PORT_CTRL
Low level power management driver for CCI400 cache coherent
interconnect for ARM platforms.
config ARM_CCI500_PMU
bool "ARM CCI500 PMU support"
default y
depends on (ARM && CPU_V7) || ARM64
depends on PERF_EVENTS
select ARM_CCI_PMU
help
Support for PMU events monitoring on the ARM CCI-500 cache coherent
interconnect. CCI-500 provides 8 independent event counters, which
can count events pertaining to the slave/master interfaces as well
as the internal events to the CCI.
If unsure, say Y
config ARM_CCN
bool "ARM CCN driver support"
depends on ARM || ARM64
drivers/bus/arm-cci.c
+736 -169
View File
File diff suppressed because it is too large Load Diff
drivers/bus/arm-ccn.c
+214 -56
View File
@@ -166,13 +166,17 @@ struct arm_ccn_dt {
struct hrtimer hrtimer;
cpumask_t cpu;
struct notifier_block cpu_nb;
struct pmu pmu;
};
struct arm_ccn {
struct device *dev;
void __iomem *base;
unsigned irq_used:1;
unsigned int irq;
unsigned sbas_present:1;
unsigned sbsx_present:1;
@@ -212,7 +216,7 @@ static int arm_ccn_node_to_xp_port(int node)
static void arm_ccn_pmu_config_set(u64 *config, u32 node_xp, u32 type, u32 port)
{
*config &= ~((0xff << 0) | (0xff << 8) | (0xff << 24));
*config &= ~((0xff << 0) | (0xff << 8) | (0x3 << 24));
*config |= (node_xp << 0) | (type << 8) | (port << 24);
}
@@ -336,6 +340,23 @@ static ssize_t arm_ccn_pmu_event_show(struct device *dev,
if (event->mask)
res += snprintf(buf + res, PAGE_SIZE - res, ",mask=0x%x",
event->mask);
/* Arguments required by an event */
switch (event->type) {
case CCN_TYPE_CYCLES:
break;
case CCN_TYPE_XP:
res += snprintf(buf + res, PAGE_SIZE - res,
",xp=?,port=?,vc=?,dir=?");
if (event->event == CCN_EVENT_WATCHPOINT)
res += snprintf(buf + res, PAGE_SIZE - res,
",cmp_l=?,cmp_h=?,mask=?");
break;
default:
res += snprintf(buf + res, PAGE_SIZE - res, ",node=?");
break;
}
res += snprintf(buf + res, PAGE_SIZE - res, "\n");
return res;
@@ -521,6 +542,25 @@ static struct attribute_group arm_ccn_pmu_cmp_mask_attr_group = {
.attrs = arm_ccn_pmu_cmp_mask_attrs,
};
static ssize_t arm_ccn_pmu_cpumask_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct arm_ccn *ccn = pmu_to_arm_ccn(dev_get_drvdata(dev));
return cpumap_print_to_pagebuf(true, buf, &ccn->dt.cpu);
}
static struct device_attribute arm_ccn_pmu_cpumask_attr =
__ATTR(cpumask, S_IRUGO, arm_ccn_pmu_cpumask_show, NULL);
static struct attribute *arm_ccn_pmu_cpumask_attrs[] = {
&arm_ccn_pmu_cpumask_attr.attr,
NULL,
};
static struct attribute_group arm_ccn_pmu_cpumask_attr_group = {
.attrs = arm_ccn_pmu_cpumask_attrs,
};
/*
* Default poll period is 10ms, which is way over the top anyway,
@@ -542,6 +582,7 @@ static const struct attribute_group *arm_ccn_pmu_attr_groups[] = {
&arm_ccn_pmu_events_attr_group,
&arm_ccn_pmu_format_attr_group,
&arm_ccn_pmu_cmp_mask_attr_group,
&arm_ccn_pmu_cpumask_attr_group,
NULL
};
@@ -587,7 +628,65 @@ static int arm_ccn_pmu_type_eq(u32 a, u32 b)
return 0;
}
static void arm_ccn_pmu_event_destroy(struct perf_event *event)
static int arm_ccn_pmu_event_alloc(struct perf_event *event)
{
struct arm_ccn *ccn = pmu_to_arm_ccn(event->pmu);
struct hw_perf_event *hw = &event->hw;
u32 node_xp, type, event_id;
struct arm_ccn_component *source;
int bit;
node_xp = CCN_CONFIG_NODE(event->attr.config);
type = CCN_CONFIG_TYPE(event->attr.config);
event_id = CCN_CONFIG_EVENT(event->attr.config);
/* Allocate the cycle counter */
if (type == CCN_TYPE_CYCLES) {
if (test_and_set_bit(CCN_IDX_PMU_CYCLE_COUNTER,
ccn->dt.pmu_counters_mask))
return -EAGAIN;
hw->idx = CCN_IDX_PMU_CYCLE_COUNTER;
ccn->dt.pmu_counters[CCN_IDX_PMU_CYCLE_COUNTER].event = event;
return 0;
}
/* Allocate an event counter */
hw->idx = arm_ccn_pmu_alloc_bit(ccn->dt.pmu_counters_mask,
CCN_NUM_PMU_EVENT_COUNTERS);
if (hw->idx < 0) {
dev_dbg(ccn->dev, "No more counters available!\n");
return -EAGAIN;
}
if (type == CCN_TYPE_XP)
source = &ccn->xp[node_xp];
else
source = &ccn->node[node_xp];
ccn->dt.pmu_counters[hw->idx].source = source;
/* Allocate an event source or a watchpoint */
if (type == CCN_TYPE_XP && event_id == CCN_EVENT_WATCHPOINT)
bit = arm_ccn_pmu_alloc_bit(source->xp.dt_cmp_mask,
CCN_NUM_XP_WATCHPOINTS);
else
bit = arm_ccn_pmu_alloc_bit(source->pmu_events_mask,
CCN_NUM_PMU_EVENTS);
if (bit < 0) {
dev_dbg(ccn->dev, "No more event sources/watchpoints on node/XP %d!\n",
node_xp);
clear_bit(hw->idx, ccn->dt.pmu_counters_mask);
return -EAGAIN;
}
hw->config_base = bit;
ccn->dt.pmu_counters[hw->idx].event = event;
return 0;
}
static void arm_ccn_pmu_event_release(struct perf_event *event)
{
struct arm_ccn *ccn = pmu_to_arm_ccn(event->pmu);
struct hw_perf_event *hw = &event->hw;
@@ -616,15 +715,14 @@ static int arm_ccn_pmu_event_init(struct perf_event *event)
struct arm_ccn *ccn;
struct hw_perf_event *hw = &event->hw;
u32 node_xp, type, event_id;
int valid, bit;
struct arm_ccn_component *source;
int valid;
int i;
struct perf_event *sibling;
if (event->attr.type != event->pmu->type)
return -ENOENT;
ccn = pmu_to_arm_ccn(event->pmu);
event->destroy = arm_ccn_pmu_event_destroy;
if (hw->sample_period) {
dev_warn(ccn->dev, "Sampling not supported!\n");
@@ -642,6 +740,16 @@ static int arm_ccn_pmu_event_init(struct perf_event *event)
dev_warn(ccn->dev, "Can't provide per-task data!\n");
return -EOPNOTSUPP;
}
/*
* Many perf core operations (eg. events rotation) operate on a
* single CPU context. This is obvious for CPU PMUs, where one
* expects the same sets of events being observed on all CPUs,
* but can lead to issues for off-core PMUs, like CCN, where each
* event could be theoretically assigned to a different CPU. To
* mitigate this, we enforce CPU assignment to one, selected
* processor (the one described in the "cpumask" attribute).
*/
event->cpu = cpumask_first(&ccn->dt.cpu);
node_xp = CCN_CONFIG_NODE(event->attr.config);
type = CCN_CONFIG_TYPE(event->attr.config);
@@ -711,48 +819,20 @@ static int arm_ccn_pmu_event_init(struct perf_event *event)
node_xp, type, port);
}
/* Allocate the cycle counter */
if (type == CCN_TYPE_CYCLES) {
if (test_and_set_bit(CCN_IDX_PMU_CYCLE_COUNTER,
ccn->dt.pmu_counters_mask))
return -EAGAIN;
/*
* We must NOT create groups containing mixed PMUs, although software
* events are acceptable (for example to create a CCN group
* periodically read when a hrtimer aka cpu-clock leader triggers).
*/
if (event->group_leader->pmu != event->pmu &&
!is_software_event(event->group_leader))
return -EINVAL;
hw->idx = CCN_IDX_PMU_CYCLE_COUNTER;
ccn->dt.pmu_counters[CCN_IDX_PMU_CYCLE_COUNTER].event = event;
return 0;
}
/* Allocate an event counter */
hw->idx = arm_ccn_pmu_alloc_bit(ccn->dt.pmu_counters_mask,
CCN_NUM_PMU_EVENT_COUNTERS);
if (hw->idx < 0) {
dev_warn(ccn->dev, "No more counters available!\n");
return -EAGAIN;
}
if (type == CCN_TYPE_XP)
source = &ccn->xp[node_xp];
else
source = &ccn->node[node_xp];
ccn->dt.pmu_counters[hw->idx].source = source;
/* Allocate an event source or a watchpoint */
if (type == CCN_TYPE_XP && event_id == CCN_EVENT_WATCHPOINT)
bit = arm_ccn_pmu_alloc_bit(source->xp.dt_cmp_mask,
CCN_NUM_XP_WATCHPOINTS);
else
bit = arm_ccn_pmu_alloc_bit(source->pmu_events_mask,
CCN_NUM_PMU_EVENTS);
if (bit < 0) {
dev_warn(ccn->dev, "No more event sources/watchpoints on node/XP %d!\n",
node_xp);
clear_bit(hw->idx, ccn->dt.pmu_counters_mask);
return -EAGAIN;
}
hw->config_base = bit;
ccn->dt.pmu_counters[hw->idx].event = event;
list_for_each_entry(sibling, &event->group_leader->sibling_list,
group_entry)
if (sibling->pmu != event->pmu &&
!is_software_event(sibling))
return -EINVAL;
return 0;
}
@@ -835,9 +915,14 @@ static void arm_ccn_pmu_event_start(struct perf_event *event, int flags)
arm_ccn_pmu_read_counter(ccn, hw->idx));
hw->state = 0;
if (!ccn->irq_used)
/*
* Pin the timer, so that the overflows are handled by the chosen
* event->cpu (this is the same one as presented in "cpumask"
* attribute).
*/
if (!ccn->irq)
hrtimer_start(&ccn->dt.hrtimer, arm_ccn_pmu_timer_period(),
HRTIMER_MODE_REL);
HRTIMER_MODE_REL_PINNED);
/* Set the DT bus input, engaging the counter */
arm_ccn_pmu_xp_dt_config(event, 1);
@@ -852,7 +937,7 @@ static void arm_ccn_pmu_event_stop(struct perf_event *event, int flags)
/* Disable counting, setting the DT bus to pass-through mode */
arm_ccn_pmu_xp_dt_config(event, 0);
if (!ccn->irq_used)
if (!ccn->irq)
hrtimer_cancel(&ccn->dt.hrtimer);
/* Let the DT bus drain */
@@ -1014,8 +1099,13 @@ static void arm_ccn_pmu_event_config(struct perf_event *event)
static int arm_ccn_pmu_event_add(struct perf_event *event, int flags)
{
int err;
struct hw_perf_event *hw = &event->hw;
err = arm_ccn_pmu_event_alloc(event);
if (err)
return err;
arm_ccn_pmu_event_config(event);
hw->state = PERF_HES_STOPPED;
@@ -1029,6 +1119,8 @@ static int arm_ccn_pmu_event_add(struct perf_event *event, int flags)
static void arm_ccn_pmu_event_del(struct perf_event *event, int flags)
{
arm_ccn_pmu_event_stop(event, PERF_EF_UPDATE);
arm_ccn_pmu_event_release(event);
}
static void arm_ccn_pmu_event_read(struct perf_event *event)
@@ -1079,12 +1171,39 @@ static enum hrtimer_restart arm_ccn_pmu_timer_handler(struct hrtimer *hrtimer)
}
static int arm_ccn_pmu_cpu_notifier(struct notifier_block *nb,
unsigned long action, void *hcpu)
{
struct arm_ccn_dt *dt = container_of(nb, struct arm_ccn_dt, cpu_nb);
struct arm_ccn *ccn = container_of(dt, struct arm_ccn, dt);
unsigned int cpu = (long)hcpu; /* for (long) see kernel/cpu.c */
unsigned int target;
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_DOWN_PREPARE:
if (!cpumask_test_and_clear_cpu(cpu, &dt->cpu))
break;
target = cpumask_any_but(cpu_online_mask, cpu);
if (target < 0)
break;
perf_pmu_migrate_context(&dt->pmu, cpu, target);
cpumask_set_cpu(target, &dt->cpu);
WARN_ON(irq_set_affinity(ccn->irq, &dt->cpu) != 0);
default:
break;
}
return NOTIFY_OK;
}
static DEFINE_IDA(arm_ccn_pmu_ida);
static int arm_ccn_pmu_init(struct arm_ccn *ccn)
{
int i;
char *name;
int err;
/* Initialize DT subsystem */
ccn->dt.base = ccn->base + CCN_REGION_SIZE;
@@ -1136,20 +1255,58 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn)
};
/* No overflow interrupt? Have to use a timer instead. */
if (!ccn->irq_used) {
if (!ccn->irq) {
dev_info(ccn->dev, "No access to interrupts, using timer.\n");
hrtimer_init(&ccn->dt.hrtimer, CLOCK_MONOTONIC,
HRTIMER_MODE_REL);
ccn->dt.hrtimer.function = arm_ccn_pmu_timer_handler;
}
return perf_pmu_register(&ccn->dt.pmu, name, -1);
/* Pick one CPU which we will use to collect data from CCN... */
cpumask_set_cpu(smp_processor_id(), &ccn->dt.cpu);
/*
* ... and change the selection when it goes offline. Priority is
* picked to have a chance to migrate events before perf is notified.
*/
ccn->dt.cpu_nb.notifier_call = arm_ccn_pmu_cpu_notifier;
ccn->dt.cpu_nb.priority = CPU_PRI_PERF + 1,
err = register_cpu_notifier(&ccn->dt.cpu_nb);
if (err)
goto error_cpu_notifier;
/* Also make sure that the overflow interrupt is handled by this CPU */
if (ccn->irq) {
err = irq_set_affinity(ccn->irq, &ccn->dt.cpu);
if (err) {
dev_err(ccn->dev, "Failed to set interrupt affinity!\n");
goto error_set_affinity;
}
}
err = perf_pmu_register(&ccn->dt.pmu, name, -1);
if (err)
goto error_pmu_register;
return 0;
error_pmu_register:
error_set_affinity:
unregister_cpu_notifier(&ccn->dt.cpu_nb);
error_cpu_notifier:
ida_simple_remove(&arm_ccn_pmu_ida, ccn->dt.id);
for (i = 0; i < ccn->num_xps; i++)
writel(0, ccn->xp[i].base + CCN_XP_DT_CONTROL);
writel(0, ccn->dt.base + CCN_DT_PMCR);
return err;
}
static void arm_ccn_pmu_cleanup(struct arm_ccn *ccn)
{
int i;
irq_set_affinity(ccn->irq, cpu_possible_mask);
unregister_cpu_notifier(&ccn->dt.cpu_nb);
for (i = 0; i < ccn->num_xps; i++)
writel(0, ccn->xp[i].base + CCN_XP_DT_CONTROL);
writel(0, ccn->dt.base + CCN_DT_PMCR);
@@ -1285,6 +1442,7 @@ static int arm_ccn_probe(struct platform_device *pdev)
{
struct arm_ccn *ccn;
struct resource *res;
unsigned int irq;
int err;
ccn = devm_kzalloc(&pdev->dev, sizeof(*ccn), GFP_KERNEL);
@@ -1309,6 +1467,7 @@ static int arm_ccn_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res)
return -EINVAL;
irq = res->start;
/* Check if we can use the interrupt */
writel(CCN_MN_ERRINT_STATUS__PMU_EVENTS__DISABLE,
@@ -1318,13 +1477,12 @@ static int arm_ccn_probe(struct platform_device *pdev)
/* Can set 'disable' bits, so can acknowledge interrupts */
writel(CCN_MN_ERRINT_STATUS__PMU_EVENTS__ENABLE,
ccn->base + CCN_MN_ERRINT_STATUS);
err = devm_request_irq(ccn->dev, res->start,
arm_ccn_irq_handler, 0, dev_name(ccn->dev),
ccn);
err = devm_request_irq(ccn->dev, irq, arm_ccn_irq_handler, 0,
dev_name(ccn->dev), ccn);
if (err)
return err;
ccn->irq_used = 1;
ccn->irq = irq;
}
drivers/bus/mvebu-mbus.c
+117
View File
@@ -57,6 +57,7 @@
#include <linux/of_address.h>
#include <linux/debugfs.h>
#include <linux/log2.h>
#include <linux/memblock.h>
#include <linux/syscore_ops.h>
/*
@@ -152,13 +153,39 @@ struct mvebu_mbus_state {
static struct mvebu_mbus_state mbus_state;
/*
* We provide two variants of the mv_mbus_dram_info() function:
*
* - The normal one, where the described DRAM ranges may overlap with
* the I/O windows, but for which the DRAM ranges are guaranteed to
* have a power of two size. Such ranges are suitable for the DMA
* masters that only DMA between the RAM and the device, which is
* actually all devices except the crypto engines.
*
* - The 'nooverlap' one, where the described DRAM ranges are
* guaranteed to not overlap with the I/O windows, but for which the
* DRAM ranges will not have power of two sizes. They will only be
* aligned on a 64 KB boundary, and have a size multiple of 64
* KB. Such ranges are suitable for the DMA masters that DMA between
* the crypto SRAM (which is mapped through an I/O window) and a
* device. This is the case for the crypto engines.
*/
static struct mbus_dram_target_info mvebu_mbus_dram_info;
static struct mbus_dram_target_info mvebu_mbus_dram_info_nooverlap;
const struct mbus_dram_target_info *mv_mbus_dram_info(void)
{
return &mvebu_mbus_dram_info;
}
EXPORT_SYMBOL_GPL(mv_mbus_dram_info);
const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void)
{
return &mvebu_mbus_dram_info_nooverlap;
}
EXPORT_SYMBOL_GPL(mv_mbus_dram_info_nooverlap);
/* Checks whether the given window has remap capability */
static bool mvebu_mbus_window_is_remappable(struct mvebu_mbus_state *mbus,
const int win)
@@ -576,6 +603,95 @@ static unsigned int armada_xp_mbus_win_remap_offset(int win)
return MVEBU_MBUS_NO_REMAP;
}
/*
* Use the memblock information to find the MBus bridge hole in the
* physical address space.
*/
static void __init
mvebu_mbus_find_bridge_hole(uint64_t *start, uint64_t *end)
{
struct memblock_region *r;
uint64_t s = 0;
for_each_memblock(memory, r) {
/*
* This part of the memory is above 4 GB, so we don't
* care for the MBus bridge hole.
*/
if (r->base >= 0x100000000ULL)
continue;
/*
* The MBus bridge hole is at the end of the RAM under
* the 4 GB limit.
*/
if (r->base + r->size > s)
s = r->base + r->size;
}
*start = s;
*end = 0x100000000ULL;
}
/*
* This function fills in the mvebu_mbus_dram_info_nooverlap data
* structure, by looking at the mvebu_mbus_dram_info data, and
* removing the parts of it that overlap with I/O windows.
*/
static void __init
mvebu_mbus_setup_cpu_target_nooverlap(struct mvebu_mbus_state *mbus)
{
uint64_t mbus_bridge_base, mbus_bridge_end;
int cs_nooverlap = 0;
int i;
mvebu_mbus_find_bridge_hole(&mbus_bridge_base, &mbus_bridge_end);
for (i = 0; i < mvebu_mbus_dram_info.num_cs; i++) {
struct mbus_dram_window *w;
u64 base, size, end;
w = &mvebu_mbus_dram_info.cs[i];
base = w->base;
size = w->size;
end = base + size;
/*
* The CS is fully enclosed inside the MBus bridge
* area, so ignore it.
*/
if (base >= mbus_bridge_base && end <= mbus_bridge_end)
continue;
/*
* Beginning of CS overlaps with end of MBus, raise CS
* base address, and shrink its size.
*/
if (base >= mbus_bridge_base && end > mbus_bridge_end) {
size -= mbus_bridge_end - base;
base = mbus_bridge_end;
}
/*
* End of CS overlaps with beginning of MBus, shrink
* CS size.
*/
if (base < mbus_bridge_base && end > mbus_bridge_base)
size -= end - mbus_bridge_base;
w = &mvebu_mbus_dram_info_nooverlap.cs[cs_nooverlap++];
w->cs_index = i;
w->mbus_attr = 0xf & ~(1 << i);
if (mbus->hw_io_coherency)
w->mbus_attr |= ATTR_HW_COHERENCY;
w->base = base;
w->size = size;
}
mvebu_mbus_dram_info_nooverlap.mbus_dram_target_id = TARGET_DDR;
mvebu_mbus_dram_info_nooverlap.num_cs = cs_nooverlap;
}
static void __init
mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
{
@@ -964,6 +1080,7 @@ static int __init mvebu_mbus_common_init(struct mvebu_mbus_state *mbus,
mvebu_mbus_disable_window(mbus, win);
mbus->soc->setup_cpu_target(mbus);
mvebu_mbus_setup_cpu_target_nooverlap(mbus);
if (is_coherent)
writel(UNIT_SYNC_BARRIER_ALL,
drivers/clk/berlin/bg2.c
+3 -4
View File
@@ -502,12 +502,13 @@ static const struct berlin2_gate_data bg2_gates[] __initconst = {
static void __init berlin2_clock_setup(struct device_node *np)
{
struct device_node *parent_np = of_get_parent(np);
const char *parent_names[9];
struct clk *clk;
u8 avpll_flags = 0;
int n;
gbase = of_iomap(np, 0);
gbase = of_iomap(parent_np, 0);
if (!gbase)
return;
@@ -685,7 +686,5 @@ static void __init berlin2_clock_setup(struct device_node *np)
bg2_fail:
iounmap(gbase);
}
CLK_OF_DECLARE(berlin2_clock, "marvell,berlin2-chip-ctrl",
berlin2_clock_setup);
CLK_OF_DECLARE(berlin2cd_clock, "marvell,berlin2cd-chip-ctrl",
CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk",
berlin2_clock_setup);

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