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linux/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt

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Broadcom iProc Family Clocks
This binding uses the common clock binding:
Documentation/devicetree/bindings/clock/clock-bindings.txt
The iProc clock controller manages clocks that are common to the iProc family.
An SoC from the iProc family may have several PPLs, e.g., ARMPLL, GENPLL,
LCPLL0, MIPIPLL, and etc., all derived from an onboard crystal. Each PLL
comprises of several leaf clocks
Required properties for a PLL and its leaf clocks:
- compatible:
Should have a value of the form "brcm,<soc>-<pll>". For example, GENPLL on
Cygnus has a compatible string of "brcm,cygnus-genpll"
- #clock-cells:
Have a value of <1> since there are more than 1 leaf clock of a given PLL
- reg:
Define the base and range of the I/O address space that contain the iProc
clock control registers required for the PLL
- clocks:
The input parent clock phandle for the PLL. For most iProc PLLs, this is an
onboard crystal with a fixed rate
- clock-output-names:
An ordered list of strings defining the names of the clocks
Example:
osc: oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <25000000>;
};
genpll: genpll {
#clock-cells = <1>;
compatible = "brcm,cygnus-genpll";
reg = <0x0301d000 0x2c>, <0x0301c020 0x4>;
clocks = <&osc>;
clock-output-names = "genpll", "axi21", "250mhz", "ihost_sys",
"enet_sw", "audio_125", "can";
};
Required properties for ASIU clocks:
ASIU clocks are a special case. These clocks are derived directly from the
reference clock of the onboard crystal
- compatible:
Should have a value of the form "brcm,<soc>-asiu-clk". For example, ASIU
clocks for Cygnus have a compatible string of "brcm,cygnus-asiu-clk"
- #clock-cells:
Have a value of <1> since there are more than 1 ASIU clocks
- reg:
Define the base and range of the I/O address space that contain the iProc
clock control registers required for ASIU clocks
- clocks:
The input parent clock phandle for the ASIU clock, i.e., the onboard
crystal
- clock-output-names:
An ordered list of strings defining the names of the ASIU clocks
Example:
osc: oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <25000000>;
};
asiu_clks: asiu_clks {
#clock-cells = <1>;
compatible = "brcm,cygnus-asiu-clk";
reg = <0x0301d048 0xc>, <0x180aa024 0x4>;
clocks = <&osc>;
clock-output-names = "keypad", "adc/touch", "pwm";
};
Cygnus
------
PLL and leaf clock compatible strings for Cygnus are:
"brcm,cygnus-armpll"
"brcm,cygnus-genpll"
"brcm,cygnus-lcpll0"
"brcm,cygnus-mipipll"
"brcm,cygnus-asiu-clk"
"brcm,cygnus-audiopll"
The following table defines the set of PLL/clock index and ID for Cygnus.
These clock IDs are defined in:
"include/dt-bindings/clock/bcm-cygnus.h"
Clock Source (Parent) Index ID
--- ----- ----- ---------
crystal N/A N/A N/A
armpll crystal N/A N/A
keypad crystal (ASIU) 0 BCM_CYGNUS_ASIU_KEYPAD_CLK
adc/tsc crystal (ASIU) 1 BCM_CYGNUS_ASIU_ADC_CLK
pwm crystal (ASIU) 2 BCM_CYGNUS_ASIU_PWM_CLK
genpll crystal 0 BCM_CYGNUS_GENPLL
axi21 genpll 1 BCM_CYGNUS_GENPLL_AXI21_CLK
250mhz genpll 2 BCM_CYGNUS_GENPLL_250MHZ_CLK
ihost_sys genpll 3 BCM_CYGNUS_GENPLL_IHOST_SYS_CLK
enet_sw genpll 4 BCM_CYGNUS_GENPLL_ENET_SW_CLK
audio_125 genpll 5 BCM_CYGNUS_GENPLL_AUDIO_125_CLK
can genpll 6 BCM_CYGNUS_GENPLL_CAN_CLK
lcpll0 crystal 0 BCM_CYGNUS_LCPLL0
pcie_phy lcpll0 1 BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK
ddr_phy lcpll0 2 BCM_CYGNUS_LCPLL0_DDR_PHY_CLK
sdio lcpll0 3 BCM_CYGNUS_LCPLL0_SDIO_CLK
usb_phy lcpll0 4 BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK
smart_card lcpll0 5 BCM_CYGNUS_LCPLL0_SMART_CARD_CLK
ch5_unused lcpll0 6 BCM_CYGNUS_LCPLL0_CH5_UNUSED
mipipll crystal 0 BCM_CYGNUS_MIPIPLL
ch0_unused mipipll 1 BCM_CYGNUS_MIPIPLL_CH0_UNUSED
ch1_lcd mipipll 2 BCM_CYGNUS_MIPIPLL_CH1_LCD
ch2_v3d mipipll 3 BCM_CYGNUS_MIPIPLL_CH2_V3D
ch3_unused mipipll 4 BCM_CYGNUS_MIPIPLL_CH3_UNUSED
ch4_unused mipipll 5 BCM_CYGNUS_MIPIPLL_CH4_UNUSED
ch5_unused mipipll 6 BCM_CYGNUS_MIPIPLL_CH5_UNUSED
audiopll crystal 0 BCM_CYGNUS_AUDIOPLL
ch0_audio audiopll 1 BCM_CYGNUS_AUDIOPLL_CH0
ch1_audio audiopll 2 BCM_CYGNUS_AUDIOPLL_CH1
ch2_audio audiopll 3 BCM_CYGNUS_AUDIOPLL_CH2
Hurricane 2
------
PLL and leaf clock compatible strings for Hurricane 2 are:
"brcm,hr2-armpll"
The following table defines the set of PLL/clock for Hurricane 2:
Clock Source Index ID
--- ----- ----- ---------
crystal N/A N/A N/A
armpll crystal N/A N/A
Northstar and Northstar Plus
------
PLL and leaf clock compatible strings for Northstar and Northstar Plus are:
"brcm,nsp-armpll"
"brcm,nsp-genpll"
"brcm,nsp-lcpll0"
The following table defines the set of PLL/clock index and ID for Northstar and
Northstar Plus. These clock IDs are defined in:
"include/dt-bindings/clock/bcm-nsp.h"
Clock Source Index ID
--- ----- ----- ---------
crystal N/A N/A N/A
armpll crystal N/A N/A
genpll crystal 0 BCM_NSP_GENPLL
phy genpll 1 BCM_NSP_GENPLL_PHY_CLK
ethernetclk genpll 2 BCM_NSP_GENPLL_ENET_SW_CLK
usbclk genpll 3 BCM_NSP_GENPLL_USB_PHY_REF_CLK
iprocfast genpll 4 BCM_NSP_GENPLL_IPROCFAST_CLK
sata1 genpll 5 BCM_NSP_GENPLL_SATA1_CLK
sata2 genpll 6 BCM_NSP_GENPLL_SATA2_CLK
lcpll0 crystal 0 BCM_NSP_LCPLL0
pcie_phy lcpll0 1 BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK
sdio lcpll0 2 BCM_NSP_LCPLL0_SDIO_CLK
ddr_phy lcpll0 3 BCM_NSP_LCPLL0_DDR_PHY_CLK
Northstar 2
-----------
PLL and leaf clock compatible strings for Northstar 2 are:
"brcm,ns2-genpll-scr"
"brcm,ns2-genpll-sw"
"brcm,ns2-lcpll-ddr"
"brcm,ns2-lcpll-ports"
The following table defines the set of PLL/clock index and ID for Northstar 2.
These clock IDs are defined in:
"include/dt-bindings/clock/bcm-ns2.h"
Clock Source Index ID
--- ----- ----- ---------
crystal N/A N/A N/A
genpll_scr crystal 0 BCM_NS2_GENPLL_SCR
scr genpll_scr 1 BCM_NS2_GENPLL_SCR_SCR_CLK
fs genpll_scr 2 BCM_NS2_GENPLL_SCR_FS_CLK
audio_ref genpll_scr 3 BCM_NS2_GENPLL_SCR_AUDIO_CLK
ch3_unused genpll_scr 4 BCM_NS2_GENPLL_SCR_CH3_UNUSED
ch4_unused genpll_scr 5 BCM_NS2_GENPLL_SCR_CH4_UNUSED
ch5_unused genpll_scr 6 BCM_NS2_GENPLL_SCR_CH5_UNUSED
genpll_sw crystal 0 BCM_NS2_GENPLL_SW
rpe genpll_sw 1 BCM_NS2_GENPLL_SW_RPE_CLK
250 genpll_sw 2 BCM_NS2_GENPLL_SW_250_CLK
nic genpll_sw 3 BCM_NS2_GENPLL_SW_NIC_CLK
chimp genpll_sw 4 BCM_NS2_GENPLL_SW_CHIMP_CLK
port genpll_sw 5 BCM_NS2_GENPLL_SW_PORT_CLK
sdio genpll_sw 6 BCM_NS2_GENPLL_SW_SDIO_CLK
lcpll_ddr crystal 0 BCM_NS2_LCPLL_DDR
pcie_sata_usb lcpll_ddr 1 BCM_NS2_LCPLL_DDR_PCIE_SATA_USB_CLK
ddr lcpll_ddr 2 BCM_NS2_LCPLL_DDR_DDR_CLK
ch2_unused lcpll_ddr 3 BCM_NS2_LCPLL_DDR_CH2_UNUSED
ch3_unused lcpll_ddr 4 BCM_NS2_LCPLL_DDR_CH3_UNUSED
ch4_unused lcpll_ddr 5 BCM_NS2_LCPLL_DDR_CH4_UNUSED
ch5_unused lcpll_ddr 6 BCM_NS2_LCPLL_DDR_CH5_UNUSED
lcpll_ports crystal 0 BCM_NS2_LCPLL_PORTS
wan lcpll_ports 1 BCM_NS2_LCPLL_PORTS_WAN_CLK
rgmii lcpll_ports 2 BCM_NS2_LCPLL_PORTS_RGMII_CLK
ch2_unused lcpll_ports 3 BCM_NS2_LCPLL_PORTS_CH2_UNUSED
ch3_unused lcpll_ports 4 BCM_NS2_LCPLL_PORTS_CH3_UNUSED
ch4_unused lcpll_ports 5 BCM_NS2_LCPLL_PORTS_CH4_UNUSED
ch5_unused lcpll_ports 6 BCM_NS2_LCPLL_PORTS_CH5_UNUSED
BCM63138
--------
PLL and leaf clock compatible strings for BCM63138 are:
"brcm,bcm63138-armpll"
Stingray
-----------
PLL and leaf clock compatible strings for Stingray are:
"brcm,sr-genpll0"
"brcm,sr-genpll1"
"brcm,sr-genpll2"
"brcm,sr-genpll3"
"brcm,sr-genpll4"
"brcm,sr-genpll5"
"brcm,sr-genpll6"
"brcm,sr-lcpll0"
"brcm,sr-lcpll1"
"brcm,sr-lcpll-pcie"
The following table defines the set of PLL/clock index and ID for Stingray.
These clock IDs are defined in:
"include/dt-bindings/clock/bcm-sr.h"
Clock Source Index ID
--- ----- ----- ---------
crystal N/A N/A N/A
crmu_ref25m crystal N/A N/A
genpll0 crystal 0 BCM_SR_GENPLL0
clk_125m genpll0 1 BCM_SR_GENPLL0_125M_CLK
clk_scr genpll0 2 BCM_SR_GENPLL0_SCR_CLK
clk_250 genpll0 3 BCM_SR_GENPLL0_250M_CLK
clk_pcie_axi genpll0 4 BCM_SR_GENPLL0_PCIE_AXI_CLK
clk_paxc_axi_x2 genpll0 5 BCM_SR_GENPLL0_PAXC_AXI_X2_CLK
clk_paxc_axi genpll0 6 BCM_SR_GENPLL0_PAXC_AXI_CLK
genpll1 crystal 0 BCM_SR_GENPLL1
clk_pcie_tl genpll1 1 BCM_SR_GENPLL1_PCIE_TL_CLK
clk_mhb_apb genpll1 2 BCM_SR_GENPLL1_MHB_APB_CLK
genpll2 crystal 0 BCM_SR_GENPLL2
clk_nic genpll2 1 BCM_SR_GENPLL2_NIC_CLK
clk_ts_500_ref genpll2 2 BCM_SR_GENPLL2_TS_500_REF_CLK
clk_125_nitro genpll2 3 BCM_SR_GENPLL2_125_NITRO_CLK
clk_chimp genpll2 4 BCM_SR_GENPLL2_CHIMP_CLK
clk_nic_flash genpll2 5 BCM_SR_GENPLL2_NIC_FLASH_CLK
clk_fs genpll2 6 BCM_SR_GENPLL2_FS_CLK
genpll3 crystal 0 BCM_SR_GENPLL3
clk_hsls genpll3 1 BCM_SR_GENPLL3_HSLS_CLK
clk_sdio genpll3 2 BCM_SR_GENPLL3_SDIO_CLK
genpll4 crystal 0 BCM_SR_GENPLL4
clk_ccn genpll4 1 BCM_SR_GENPLL4_CCN_CLK
clk_tpiu_pll genpll4 2 BCM_SR_GENPLL4_TPIU_PLL_CLK
clk_noc genpll4 3 BCM_SR_GENPLL4_NOC_CLK
clk_chclk_fs4 genpll4 4 BCM_SR_GENPLL4_CHCLK_FS4_CLK
clk_bridge_fscpu genpll4 5 BCM_SR_GENPLL4_BRIDGE_FSCPU_CLK
genpll5 crystal 0 BCM_SR_GENPLL5
clk_fs4_hf genpll5 1 BCM_SR_GENPLL5_FS4_HF_CLK
clk_crypto_ae genpll5 2 BCM_SR_GENPLL5_CRYPTO_AE_CLK
clk_raid_ae genpll5 3 BCM_SR_GENPLL5_RAID_AE_CLK
genpll6 crystal 0 BCM_SR_GENPLL6
clk_48_usb genpll6 1 BCM_SR_GENPLL6_48_USB_CLK
lcpll0 crystal 0 BCM_SR_LCPLL0
clk_sata_refp lcpll0 1 BCM_SR_LCPLL0_SATA_REFP_CLK
clk_sata_refn lcpll0 2 BCM_SR_LCPLL0_SATA_REFN_CLK
clk_sata_350 lcpll0 3 BCM_SR_LCPLL0_SATA_350_CLK
clk_sata_500 lcpll0 4 BCM_SR_LCPLL0_SATA_500_CLK
lcpll1 crystal 0 BCM_SR_LCPLL1
clk_wan lcpll1 1 BCM_SR_LCPLL1_WAN_CLK
clk_usb_ref lcpll1 2 BCM_SR_LCPLL1_USB_REF_CLK
clk_crmu_ts lcpll1 3 BCM_SR_LCPLL1_CRMU_TS_CLK
lcpll_pcie crystal 0 BCM_SR_LCPLL_PCIE
clk_pcie_phy_ref lcpll1 1 BCM_SR_LCPLL_PCIE_PHY_REF_CLK
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