[ARM] pxa: add base support for Marvell's PXA168 processor line
"""The Marvell® PXA168 processor is the first in a family of application
processors targeted at mass market opportunities in computing and consumer
devices. It balances high computing and multimedia performance with low
power consumption to support extended battery life, and includes a wealth
of integrated peripherals to reduce overall BOM cost .... """
See http://www.marvell.com/featured/pxa168.jsp for more information.
1. Marvell Mohawk core is a hybrid of xscale3 and its own ARM core,
there are many enhancements like instructions for flushing the
whole D-cache, and so on
2. Clock reuses Russell's common clkdev, and added the basic support
for UART1/2.
3. Devices are a bit different from the 'mach-pxa' way, the platform
devices are now dynamically allocated only when necessary (i.e.
when pxa_register_device() is called). Description for each device
are stored in an array of 'struct pxa_device_desc'. Now that:
a. this array of device description is marked with __initdata and
can be freed up system is fully up
b. which means board code has to add all needed devices early in
his initializing function
c. platform specific data can now be marked as __initdata since
they are allocated and copied by platform_device_add_data()
4. only the basic UART1/2/3 are added, more devices will come later.
Signed-off-by: Jason Chagas <chagas@marvell.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/arch/arm/mach-mmp/include/mach/regs-apbc.h b/arch/arm/mach-mmp/include/mach/regs-apbc.h
new file mode 100644
index 0000000..e0ffae59
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/regs-apbc.h
@@ -0,0 +1,53 @@
+/*
+ * linux/arch/arm/mach-mmp/include/mach/regs-apbc.h
+ *
+ * Application Peripheral Bus Clock Unit
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_REGS_APBC_H
+#define __ASM_MACH_REGS_APBC_H
+
+#include <mach/addr-map.h>
+
+#define APBC_VIRT_BASE (APB_VIRT_BASE + 0x015000)
+#define APBC_REG(x) (APBC_VIRT_BASE + (x))
+
+/*
+ * APB clock register offsets for PXA168
+ */
+#define APBC_PXA168_UART1 APBC_REG(0x000)
+#define APBC_PXA168_UART2 APBC_REG(0x004)
+#define APBC_PXA168_GPIO APBC_REG(0x008)
+#define APBC_PXA168_PWM0 APBC_REG(0x00c)
+#define APBC_PXA168_PWM1 APBC_REG(0x010)
+#define APBC_PXA168_SSP1 APBC_REG(0x01c)
+#define APBC_PXA168_SSP2 APBC_REG(0x020)
+#define APBC_PXA168_RTC APBC_REG(0x028)
+#define APBC_PXA168_TWSI0 APBC_REG(0x02c)
+#define APBC_PXA168_KPC APBC_REG(0x030)
+#define APBC_PXA168_TIMERS APBC_REG(0x034)
+#define APBC_PXA168_AIB APBC_REG(0x03c)
+#define APBC_PXA168_SW_JTAG APBC_REG(0x040)
+#define APBC_PXA168_ONEWIRE APBC_REG(0x048)
+#define APBC_PXA168_SSP3 APBC_REG(0x04c)
+#define APBC_PXA168_ASFAR APBC_REG(0x050)
+#define APBC_PXA168_ASSAR APBC_REG(0x054)
+#define APBC_PXA168_SSP4 APBC_REG(0x058)
+#define APBC_PXA168_SSP5 APBC_REG(0x05c)
+#define APBC_PXA168_TWSI1 APBC_REG(0x06c)
+#define APBC_PXA168_UART3 APBC_REG(0x070)
+#define APBC_PXA168_AC97 APBC_REG(0x084)
+
+/* Common APB clock register bit definitions */
+#define APBC_APBCLK (1 << 0) /* APB Bus Clock Enable */
+#define APBC_FNCLK (1 << 1) /* Functional Clock Enable */
+#define APBC_RST (1 << 2) /* Reset Generation */
+
+/* Functional Clock Selection Mask */
+#define APBC_FNCLKSEL(x) (((x) & 0xf) << 4)
+
+#endif /* __ASM_MACH_REGS_APBC_H */