clk: cygnus: add clock support for Broadcom Cygnus

The Broadcom Cygnus SoC is architected under the iProc architecture. It
has the following PLLs: ARMPLL, GENPLL, LCPLL0, MIPIPLL, all dervied
from an onboard crystal. Cygnus also has various ASIU clocks that are
derived directly from the onboard crystal.

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/include/dt-bindings/clock/bcm-cygnus.h b/include/dt-bindings/clock/bcm-cygnus.h
new file mode 100644
index 000000000000..32fbc475087a
--- /dev/null
+++ b/include/dt-bindings/clock/bcm-cygnus.h
@@ -0,0 +1,68 @@
+/*
+ *  BSD LICENSE
+ *
+ *  Copyright(c) 2014 Broadcom Corporation.  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in
+ *      the documentation and/or other materials provided with the
+ *      distribution.
+ *    * Neither the name of Broadcom Corporation nor the names of its
+ *      contributors may be used to endorse or promote products derived
+ *      from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CLOCK_BCM_CYGNUS_H
+#define _CLOCK_BCM_CYGNUS_H
+
+/* GENPLL clock ID */
+#define BCM_CYGNUS_GENPLL                     0
+#define BCM_CYGNUS_GENPLL_AXI21_CLK           1
+#define BCM_CYGNUS_GENPLL_250MHZ_CLK          2
+#define BCM_CYGNUS_GENPLL_IHOST_SYS_CLK       3
+#define BCM_CYGNUS_GENPLL_ENET_SW_CLK         4
+#define BCM_CYGNUS_GENPLL_AUDIO_125_CLK       5
+#define BCM_CYGNUS_GENPLL_CAN_CLK             6
+
+/* LCPLL0 clock ID */
+#define BCM_CYGNUS_LCPLL0                     0
+#define BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK    1
+#define BCM_CYGNUS_LCPLL0_DDR_PHY_CLK         2
+#define BCM_CYGNUS_LCPLL0_SDIO_CLK            3
+#define BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK     4
+#define BCM_CYGNUS_LCPLL0_SMART_CARD_CLK      5
+#define BCM_CYGNUS_LCPLL0_CH5_UNUSED          6
+
+/* MIPI PLL clock ID */
+#define BCM_CYGNUS_MIPIPLL                    0
+#define BCM_CYGNUS_MIPIPLL_CH0_UNUSED         1
+#define BCM_CYGNUS_MIPIPLL_CH1_LCD            2
+#define BCM_CYGNUS_MIPIPLL_CH2_V3D            3
+#define BCM_CYGNUS_MIPIPLL_CH3_UNUSED         4
+#define BCM_CYGNUS_MIPIPLL_CH4_UNUSED         5
+#define BCM_CYGNUS_MIPIPLL_CH5_UNUSED         6
+
+/* ASIU clock ID */
+#define BCM_CYGNUS_ASIU_KEYPAD_CLK    0
+#define BCM_CYGNUS_ASIU_ADC_CLK       1
+#define BCM_CYGNUS_ASIU_PWM_CLK       2
+
+#endif /* _CLOCK_BCM_CYGNUS_H */