clk: iproc: define Broadcom NS2 iProc clock binding

Document the device tree bindings for Broadcom Northstar 2 architecture
based clock controller

Signed-off-by: Jon Mason <jonmason@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
index b3c3e9d..ede65a5 100644 (file)
--- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
+++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
@@ -160,3 +160,51 @@ Northstar Plus.  These clock IDs are defined in:
     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