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phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar

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Northstar is a family of SoCs used in home routers. They have USB 2.0
and 3.0 controllers with PHYs that need to be properly initialized.
This driver provides PHY init support in a generic way and can be bound
with an EHCI controller driver.
There are (just a few) registers being defined in bcma header. It's
because DMU/CRU registers will be also needed in other drivers. We will
need them e.g. in PCIe controller/PHY driver and at some point probably
in clock driver for BCM53573 chipset. By using include/linux/bcma/ we
avoid code duplication.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Rafał Miłecki
2016-04-14 11:37:43 +02:00
committed by Kishon Vijay Abraham I
parent 444525d4f5
commit d3feb40673
6 changed files with 184 additions and 0 deletions
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1
include/linux/bcma/bcma.h
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@@ -4,6 +4,7 @@
#include <linux/pci.h>
#include <linux/mod_devicetable.h>
#include <linux/bcma/bcma_driver_arm_c9.h>
#include <linux/bcma/bcma_driver_chipcommon.h>
#include <linux/bcma/bcma_driver_pci.h>
#include <linux/bcma/bcma_driver_pcie2.h>

15
include/linux/bcma/bcma_driver_arm_c9.h Normal file
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@@ -0,0 +1,15 @@
#ifndef LINUX_BCMA_DRIVER_ARM_C9_H_
#define LINUX_BCMA_DRIVER_ARM_C9_H_
/* DMU (Device Management Unit) */
#define BCMA_DMU_CRU_USB2_CONTROL 0x0164
#define BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_MASK 0x00000FFC
#define BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_SHIFT 2
#define BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_MASK 0x00007000
#define BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_SHIFT 12
#define BCMA_DMU_CRU_CLKSET_KEY 0x0180
#define BCMA_DMU_CRU_STRAPS_CTRL 0x02A0
#define BCMA_DMU_CRU_STRAPS_CTRL_USB3 0x00000010
#define BCMA_DMU_CRU_STRAPS_CTRL_4BYTE 0x00008000
#endif /* LINUX_BCMA_DRIVER_ARM_C9_H_ */