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diff --git a/arch/arm/mach-ep93xx/soc.h b/arch/arm/mach-ep93xx/soc.h
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+/*
+ * arch/arm/mach-ep93xx/soc.h
+ *
+ * Copyright (C) 2012 Open Kernel Labs <www.ok-labs.com>
+ * Copyright (C) 2012 Ryan Mallon <rmallon@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#ifndef _EP93XX_SOC_H
+#define _EP93XX_SOC_H
+
+#include <mach/ep93xx-regs.h>
+
+/*
+ * EP93xx Physical Memory Map:
+ *
+ * The ASDO pin is sampled at system reset to select a synchronous or
+ * asynchronous boot configuration. When ASDO is "1" (i.e. pulled-up)
+ * the synchronous boot mode is selected. When ASDO is "0" (i.e
+ * pulled-down) the asynchronous boot mode is selected.
+ *
+ * In synchronous boot mode nSDCE3 is decoded starting at physical address
+ * 0x00000000 and nCS0 is decoded starting at 0xf0000000. For asynchronous
+ * boot mode they are swapped with nCS0 decoded at 0x00000000 ann nSDCE3
+ * decoded at 0xf0000000.
+ *
+ * There is known errata for the EP93xx dealing with External Memory
+ * Configurations. Please refer to "AN273: EP93xx Silicon Rev E Design
+ * Guidelines" for more information. This document can be found at:
+ *
+ * http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf
+ */
+
+#define EP93XX_CS0_PHYS_BASE_ASYNC 0x00000000 /* ASDO Pin = 0 */
+#define EP93XX_SDCE3_PHYS_BASE_SYNC 0x00000000 /* ASDO Pin = 1 */
+#define EP93XX_CS1_PHYS_BASE 0x10000000
+#define EP93XX_CS2_PHYS_BASE 0x20000000
+#define EP93XX_CS3_PHYS_BASE 0x30000000
+#define EP93XX_PCMCIA_PHYS_BASE 0x40000000
+#define EP93XX_CS6_PHYS_BASE 0x60000000
+#define EP93XX_CS7_PHYS_BASE 0x70000000
+#define EP93XX_SDCE0_PHYS_BASE 0xc0000000
+#define EP93XX_SDCE1_PHYS_BASE 0xd0000000
+#define EP93XX_SDCE2_PHYS_BASE 0xe0000000
+#define EP93XX_SDCE3_PHYS_BASE_ASYNC 0xf0000000 /* ASDO Pin = 0 */
+#define EP93XX_CS0_PHYS_BASE_SYNC 0xf0000000 /* ASDO Pin = 1 */
+
+/* AHB peripherals */
+#define EP93XX_DMA_BASE EP93XX_AHB_IOMEM(0x00000000)
+
+#define EP93XX_ETHERNET_PHYS_BASE EP93XX_AHB_PHYS(0x00010000)
+#define EP93XX_ETHERNET_BASE EP93XX_AHB_IOMEM(0x00010000)
+
+#define EP93XX_USB_PHYS_BASE EP93XX_AHB_PHYS(0x00020000)
+#define EP93XX_USB_BASE EP93XX_AHB_IOMEM(0x00020000)
+
+#define EP93XX_RASTER_PHYS_BASE EP93XX_AHB_PHYS(0x00030000)
+#define EP93XX_RASTER_BASE EP93XX_AHB_IOMEM(0x00030000)
+
+#define EP93XX_GRAPHICS_ACCEL_BASE EP93XX_AHB_IOMEM(0x00040000)
+
+#define EP93XX_SDRAM_CONTROLLER_BASE EP93XX_AHB_IOMEM(0x00060000)
+
+#define EP93XX_PCMCIA_CONTROLLER_BASE EP93XX_AHB_IOMEM(0x00080000)
+
+#define EP93XX_BOOT_ROM_BASE EP93XX_AHB_IOMEM(0x00090000)
+
+#define EP93XX_IDE_BASE EP93XX_AHB_IOMEM(0x000a0000)
+
+#define EP93XX_VIC1_BASE EP93XX_AHB_IOMEM(0x000b0000)
+
+#define EP93XX_VIC2_BASE EP93XX_AHB_IOMEM(0x000c0000)
+
+/* APB peripherals */
+#define EP93XX_TIMER_BASE EP93XX_APB_IOMEM(0x00010000)
+
+#define EP93XX_I2S_PHYS_BASE EP93XX_APB_PHYS(0x00020000)
+#define EP93XX_I2S_BASE EP93XX_APB_IOMEM(0x00020000)
+
+#define EP93XX_SECURITY_BASE EP93XX_APB_IOMEM(0x00030000)
+
+#define EP93XX_AAC_PHYS_BASE EP93XX_APB_PHYS(0x00080000)
+#define EP93XX_AAC_BASE EP93XX_APB_IOMEM(0x00080000)
+
+#define EP93XX_SPI_PHYS_BASE EP93XX_APB_PHYS(0x000a0000)
+#define EP93XX_SPI_BASE EP93XX_APB_IOMEM(0x000a0000)
+
+#define EP93XX_IRDA_BASE EP93XX_APB_IOMEM(0x000b0000)
+
+#define EP93XX_KEY_MATRIX_PHYS_BASE EP93XX_APB_PHYS(0x000f0000)
+#define EP93XX_KEY_MATRIX_BASE EP93XX_APB_IOMEM(0x000f0000)
+
+#define EP93XX_ADC_BASE EP93XX_APB_IOMEM(0x00100000)
+#define EP93XX_TOUCHSCREEN_BASE EP93XX_APB_IOMEM(0x00100000)
+
+#define EP93XX_PWM_PHYS_BASE EP93XX_APB_PHYS(0x00110000)
+#define EP93XX_PWM_BASE EP93XX_APB_IOMEM(0x00110000)
+
+#define EP93XX_RTC_PHYS_BASE EP93XX_APB_PHYS(0x00120000)
+#define EP93XX_RTC_BASE EP93XX_APB_IOMEM(0x00120000)
+
+#define EP93XX_WATCHDOG_PHYS_BASE EP93XX_APB_PHYS(0x00140000)
+#define EP93XX_WATCHDOG_BASE EP93XX_APB_IOMEM(0x00140000)
+
+/* System controller */
+#define EP93XX_SYSCON_BASE EP93XX_APB_IOMEM(0x00130000)
+#define EP93XX_SYSCON_REG(x) (EP93XX_SYSCON_BASE + (x))
+#define EP93XX_SYSCON_POWER_STATE EP93XX_SYSCON_REG(0x00)
+#define EP93XX_SYSCON_PWRCNT EP93XX_SYSCON_REG(0x04)
+#define EP93XX_SYSCON_PWRCNT_FIR_EN (1<<31)
+#define EP93XX_SYSCON_PWRCNT_UARTBAUD (1<<29)
+#define EP93XX_SYSCON_PWRCNT_USH_EN (1<<28)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2M1 (1<<27)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2M0 (1<<26)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P8 (1<<25)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P9 (1<<24)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P6 (1<<23)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P7 (1<<22)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P4 (1<<21)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P5 (1<<20)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P2 (1<<19)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P3 (1<<18)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P0 (1<<17)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P1 (1<<16)
+#define EP93XX_SYSCON_HALT EP93XX_SYSCON_REG(0x08)
+#define EP93XX_SYSCON_STANDBY EP93XX_SYSCON_REG(0x0c)
+#define EP93XX_SYSCON_CLKSET1 EP93XX_SYSCON_REG(0x20)
+#define EP93XX_SYSCON_CLKSET1_NBYP1 (1<<23)
+#define EP93XX_SYSCON_CLKSET2 EP93XX_SYSCON_REG(0x24)
+#define EP93XX_SYSCON_CLKSET2_NBYP2 (1<<19)
+#define EP93XX_SYSCON_CLKSET2_PLL2_EN (1<<18)
+#define EP93XX_SYSCON_DEVCFG EP93XX_SYSCON_REG(0x80)
+#define EP93XX_SYSCON_DEVCFG_SWRST (1<<31)
+#define EP93XX_SYSCON_DEVCFG_D1ONG (1<<30)
+#define EP93XX_SYSCON_DEVCFG_D0ONG (1<<29)
+#define EP93XX_SYSCON_DEVCFG_IONU2 (1<<28)
+#define EP93XX_SYSCON_DEVCFG_GONK (1<<27)
+#define EP93XX_SYSCON_DEVCFG_TONG (1<<26)
+#define EP93XX_SYSCON_DEVCFG_MONG (1<<25)
+#define EP93XX_SYSCON_DEVCFG_U3EN (1<<24)
+#define EP93XX_SYSCON_DEVCFG_CPENA (1<<23)
+#define EP93XX_SYSCON_DEVCFG_A2ONG (1<<22)
+#define EP93XX_SYSCON_DEVCFG_A1ONG (1<<21)
+#define EP93XX_SYSCON_DEVCFG_U2EN (1<<20)
+#define EP93XX_SYSCON_DEVCFG_EXVC (1<<19)
+#define EP93XX_SYSCON_DEVCFG_U1EN (1<<18)
+#define EP93XX_SYSCON_DEVCFG_TIN (1<<17)
+#define EP93XX_SYSCON_DEVCFG_HC3IN (1<<15)
+#define EP93XX_SYSCON_DEVCFG_HC3EN (1<<14)
+#define EP93XX_SYSCON_DEVCFG_HC1IN (1<<13)
+#define EP93XX_SYSCON_DEVCFG_HC1EN (1<<12)
+#define EP93XX_SYSCON_DEVCFG_HONIDE (1<<11)
+#define EP93XX_SYSCON_DEVCFG_GONIDE (1<<10)
+#define EP93XX_SYSCON_DEVCFG_PONG (1<<9)
+#define EP93XX_SYSCON_DEVCFG_EONIDE (1<<8)
+#define EP93XX_SYSCON_DEVCFG_I2SONSSP (1<<7)
+#define EP93XX_SYSCON_DEVCFG_I2SONAC97 (1<<6)
+#define EP93XX_SYSCON_DEVCFG_RASONP3 (1<<4)
+#define EP93XX_SYSCON_DEVCFG_RAS (1<<3)
+#define EP93XX_SYSCON_DEVCFG_ADCPD (1<<2)
+#define EP93XX_SYSCON_DEVCFG_KEYS (1<<1)
+#define EP93XX_SYSCON_DEVCFG_SHENA (1<<0)
+#define EP93XX_SYSCON_VIDCLKDIV EP93XX_SYSCON_REG(0x84)
+#define EP93XX_SYSCON_CLKDIV_ENABLE (1<<15)
+#define EP93XX_SYSCON_CLKDIV_ESEL (1<<14)
+#define EP93XX_SYSCON_CLKDIV_PSEL (1<<13)
+#define EP93XX_SYSCON_CLKDIV_PDIV_SHIFT 8
+#define EP93XX_SYSCON_I2SCLKDIV EP93XX_SYSCON_REG(0x8c)
+#define EP93XX_SYSCON_I2SCLKDIV_SENA (1<<31)
+#define EP93XX_SYSCON_I2SCLKDIV_ORIDE (1<<29)
+#define EP93XX_SYSCON_I2SCLKDIV_SPOL (1<<19)
+#define EP93XX_I2SCLKDIV_SDIV (1 << 16)
+#define EP93XX_I2SCLKDIV_LRDIV32 (0 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV64 (1 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV128 (2 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV_MASK (3 << 17)
+#define EP93XX_SYSCON_KEYTCHCLKDIV EP93XX_SYSCON_REG(0x90)
+#define EP93XX_SYSCON_KEYTCHCLKDIV_TSEN (1<<31)
+#define EP93XX_SYSCON_KEYTCHCLKDIV_ADIV (1<<16)
+#define EP93XX_SYSCON_KEYTCHCLKDIV_KEN (1<<15)
+#define EP93XX_SYSCON_KEYTCHCLKDIV_KDIV (1<<0)
+#define EP93XX_SYSCON_SYSCFG EP93XX_SYSCON_REG(0x9c)
+#define EP93XX_SYSCON_SYSCFG_REV_MASK (0xf0000000)
+#define EP93XX_SYSCON_SYSCFG_REV_SHIFT (28)
+#define EP93XX_SYSCON_SYSCFG_SBOOT (1<<8)
+#define EP93XX_SYSCON_SYSCFG_LCSN7 (1<<7)
+#define EP93XX_SYSCON_SYSCFG_LCSN6 (1<<6)
+#define EP93XX_SYSCON_SYSCFG_LASDO (1<<5)
+#define EP93XX_SYSCON_SYSCFG_LEEDA (1<<4)
+#define EP93XX_SYSCON_SYSCFG_LEECLK (1<<3)
+#define EP93XX_SYSCON_SYSCFG_LCSN2 (1<<1)
+#define EP93XX_SYSCON_SYSCFG_LCSN1 (1<<0)
+#define EP93XX_SYSCON_SWLOCK EP93XX_SYSCON_REG(0xc0)
+
+/* EP93xx System Controller software locked register write */
+void ep93xx_syscon_swlocked_write(unsigned int val, void __iomem *reg);
+void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits);
+
+static inline void ep93xx_devcfg_set_bits(unsigned int bits)
+{
+ ep93xx_devcfg_set_clear(bits, 0x00);
+}
+
+static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
+{
+ ep93xx_devcfg_set_clear(0x00, bits);
+}
+
+#endif /* _EP93XX_SOC_H */