arm/imx2x: split i.MX21/i.MX27 register definitions
* define new CONFIG_ARCH_MX21 (this one is currently mutually exclusive to
CONFIG_ARCH_MX27, but this might change)
* splits one header file. Memory definitions, interrupt sources,
DMA channels are split into common part, i.MX27 specific and i.MX21
specific.
* guard access to UART5/UART6, which don't exist on i.MX21
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h
index a612d8b..11f5727 100644
--- a/arch/arm/plat-mxc/include/mach/hardware.h
+++ b/arch/arm/plat-mxc/include/mach/hardware.h
@@ -27,6 +27,10 @@
#endif
#ifdef CONFIG_ARCH_MX2
+# include <mach/mx2x.h>
+# ifdef CONFIG_MACH_MX21
+# include <mach/mx21.h>
+# endif
# ifdef CONFIG_MACH_MX27
# include <mach/mx27.h>
# endif
diff --git a/arch/arm/plat-mxc/include/mach/mx21.h b/arch/arm/plat-mxc/include/mach/mx21.h
new file mode 100644
index 0000000..cfdbe05
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mx21.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ * Copyright 2009 Holger Schurig, hs4233@mail.mn-solutions.de
+ *
+ * This contains i.MX21-specific hardware definitions. For those
+ * hardware pieces that are common between i.MX21 and i.MX27, have a
+ * look at mx2x.h.
+ *
+ * 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.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef __ASM_ARCH_MXC_MX21_H__
+#define __ASM_ARCH_MXC_MX21_H__
+
+#ifndef __ASM_ARCH_MXC_HARDWARE_H__
+#error "Do not include directly."
+#endif
+
+
+/* Memory regions and CS */
+#define SDRAM_BASE_ADDR 0xC0000000
+#define CSD1_BASE_ADDR 0xC4000000
+
+#define CS0_BASE_ADDR 0xC8000000
+#define CS1_BASE_ADDR 0xCC000000
+#define CS2_BASE_ADDR 0xD0000000
+#define CS3_BASE_ADDR 0xD1000000
+#define CS4_BASE_ADDR 0xD2000000
+#define CS5_BASE_ADDR 0xDD000000
+#define PCMCIA_MEM_BASE_ADDR 0xD4000000
+
+/* NAND, SDRAM, WEIM etc controllers */
+#define X_MEMC_BASE_ADDR 0xDF000000
+#define X_MEMC_BASE_ADDR_VIRT 0xF4200000
+#define X_MEMC_SIZE SZ_256K
+
+#define SDRAMC_BASE_ADDR (X_MEMC_BASE_ADDR + 0x0000)
+#define EIM_BASE_ADDR (X_MEMC_BASE_ADDR + 0x1000)
+#define PCMCIA_CTL_BASE_ADDR (X_MEMC_BASE_ADDR + 0x2000)
+#define NFC_BASE_ADDR (X_MEMC_BASE_ADDR + 0x3000)
+
+#define IRAM_BASE_ADDR 0xFFFFE800 /* internal ram */
+
+/* this is an i.MX21 CPU */
+#define cpu_is_mx21() (1)
+
+/* this CPU supports up to 192 GPIOs (don't forget the baseboard!) */
+#define ARCH_NR_GPIOS (6*32 + 16)
+
+/* fixed interrupt numbers */
+#define MXC_INT_USBCTRL 58
+#define MXC_INT_USBCTRL 58
+#define MXC_INT_USBMNP 57
+#define MXC_INT_USBFUNC 56
+#define MXC_INT_USBHOST 55
+#define MXC_INT_USBDMA 54
+#define MXC_INT_USBWKUP 53
+#define MXC_INT_EMMADEC 50
+#define MXC_INT_EMMAENC 49
+#define MXC_INT_BMI 30
+#define MXC_INT_FIRI 9
+
+/* fixed DMA request numbers */
+#define DMA_REQ_BMI_RX 29
+#define DMA_REQ_BMI_TX 28
+#define DMA_REQ_FIRI_RX 4
+
+#endif /* __ASM_ARCH_MXC_MX21_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx27.h b/arch/arm/plat-mxc/include/mach/mx27.h
index 9c609d3..5f6a8a7 100644
--- a/arch/arm/plat-mxc/include/mach/mx27.h
+++ b/arch/arm/plat-mxc/include/mach/mx27.h
@@ -2,6 +2,10 @@
* Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Juergen Beisert, kernel@pengutronix.de
*
+ * This contains i.MX27-specific hardware definitions. For those
+ * hardware pieces that are common between i.MX21 and i.MX27, have a
+ * look at mx2x.h.
+ *
* 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
@@ -27,35 +31,6 @@
/* IRAM */
#define IRAM_BASE_ADDR 0xFFFF4C00 /* internal ram */
-/* Register offests */
-#define AIPI_BASE_ADDR 0x10000000
-#define AIPI_BASE_ADDR_VIRT 0xF4000000
-#define AIPI_SIZE SZ_1M
-
-#define DMA_BASE_ADDR (AIPI_BASE_ADDR + 0x01000)
-#define WDOG_BASE_ADDR (AIPI_BASE_ADDR + 0x02000)
-#define GPT1_BASE_ADDR (AIPI_BASE_ADDR + 0x03000)
-#define GPT2_BASE_ADDR (AIPI_BASE_ADDR + 0x04000)
-#define GPT3_BASE_ADDR (AIPI_BASE_ADDR + 0x05000)
-#define PWM_BASE_ADDR (AIPI_BASE_ADDR + 0x06000)
-#define RTC_BASE_ADDR (AIPI_BASE_ADDR + 0x07000)
-#define KPP_BASE_ADDR (AIPI_BASE_ADDR + 0x08000)
-#define OWIRE_BASE_ADDR (AIPI_BASE_ADDR + 0x09000)
-#define UART1_BASE_ADDR (AIPI_BASE_ADDR + 0x0A000)
-#define UART2_BASE_ADDR (AIPI_BASE_ADDR + 0x0B000)
-#define UART3_BASE_ADDR (AIPI_BASE_ADDR + 0x0C000)
-#define UART4_BASE_ADDR (AIPI_BASE_ADDR + 0x0D000)
-#define CSPI1_BASE_ADDR (AIPI_BASE_ADDR + 0x0E000)
-#define CSPI2_BASE_ADDR (AIPI_BASE_ADDR + 0x0F000)
-#define SSI1_BASE_ADDR (AIPI_BASE_ADDR + 0x10000)
-#define SSI2_BASE_ADDR (AIPI_BASE_ADDR + 0x11000)
-#define I2C_BASE_ADDR (AIPI_BASE_ADDR + 0x12000)
-#define SDHC1_BASE_ADDR (AIPI_BASE_ADDR + 0x13000)
-#define SDHC2_BASE_ADDR (AIPI_BASE_ADDR + 0x14000)
-#define GPIO_BASE_ADDR (AIPI_BASE_ADDR + 0x15000)
-#define AUDMUX_BASE_ADDR (AIPI_BASE_ADDR + 0x16000)
-
-#define CSPI3_BASE_ADDR (AIPI_BASE_ADDR + 0x17000)
#define MSHC_BASE_ADDR (AIPI_BASE_ADDR + 0x18000)
#define GPT5_BASE_ADDR (AIPI_BASE_ADDR + 0x19000)
#define GPT4_BASE_ADDR (AIPI_BASE_ADDR + 0x1A000)
@@ -64,41 +39,33 @@
#define I2C2_BASE_ADDR (AIPI_BASE_ADDR + 0x1D000)
#define SDHC3_BASE_ADDR (AIPI_BASE_ADDR + 0x1E000)
#define GPT6_BASE_ADDR (AIPI_BASE_ADDR + 0x1F000)
-
-#define LCDC_BASE_ADDR (AIPI_BASE_ADDR + 0x21000)
-#define SLCDC_BASE_ADDR (AIPI_BASE_ADDR + 0x22000)
#define VPU_BASE_ADDR (AIPI_BASE_ADDR + 0x23000)
-#define USBOTG_BASE_ADDR (AIPI_BASE_ADDR + 0x24000)
-/* for mx27*/
#define OTG_BASE_ADDR USBOTG_BASE_ADDR
#define SAHARA_BASE_ADDR (AIPI_BASE_ADDR + 0x25000)
-#define EMMA_PP_BASE_ADDR (AIPI_BASE_ADDR + 0x26000)
-#define EMMA_PRP_BASE_ADDR (AIPI_BASE_ADDR + 0x26400)
-#define CCM_BASE_ADDR (AIPI_BASE_ADDR + 0x27000)
-#define SYSCTRL_BASE_ADDR (AIPI_BASE_ADDR + 0x27800)
#define IIM_BASE_ADDR (AIPI_BASE_ADDR + 0x28000)
-
#define RTIC_BASE_ADDR (AIPI_BASE_ADDR + 0x2A000)
#define FEC_BASE_ADDR (AIPI_BASE_ADDR + 0x2B000)
#define SCC_BASE_ADDR (AIPI_BASE_ADDR + 0x2C000)
#define ETB_BASE_ADDR (AIPI_BASE_ADDR + 0x3B000)
#define ETB_RAM_BASE_ADDR (AIPI_BASE_ADDR + 0x3C000)
-#define JAM_BASE_ADDR (AIPI_BASE_ADDR + 0x3E000)
-#define MAX_BASE_ADDR (AIPI_BASE_ADDR + 0x3F000)
-
-/* ROMP and AVIC */
+/* ROM patch */
#define ROMP_BASE_ADDR 0x10041000
-#define AVIC_BASE_ADDR 0x10040000
-
-#define SAHB1_BASE_ADDR 0x80000000
-#define SAHB1_BASE_ADDR_VIRT 0xF4100000
-#define SAHB1_SIZE SZ_1M
-
-#define CSI_BASE_ADDR (SAHB1_BASE_ADDR + 0x0000)
#define ATA_BASE_ADDR (SAHB1_BASE_ADDR + 0x1000)
+/* Memory regions and CS */
+#define SDRAM_BASE_ADDR 0xA0000000
+#define CSD1_BASE_ADDR 0xB0000000
+
+#define CS0_BASE_ADDR 0xC0000000
+#define CS1_BASE_ADDR 0xC8000000
+#define CS2_BASE_ADDR 0xD0000000
+#define CS3_BASE_ADDR 0xD2000000
+#define CS4_BASE_ADDR 0xD4000000
+#define CS5_BASE_ADDR 0xD6000000
+#define PCMCIA_MEM_BASE_ADDR 0xDC000000
+
/* NAND, SDRAM, WEIM, M3IF, EMI controllers */
#define X_MEMC_BASE_ADDR 0xD8000000
#define X_MEMC_BASE_ADDR_VIRT 0xF4200000
@@ -110,56 +77,9 @@
#define M3IF_BASE_ADDR (X_MEMC_BASE_ADDR + 0x3000)
#define PCMCIA_CTL_BASE_ADDR (X_MEMC_BASE_ADDR + 0x4000)
-/* Memory regions and CS */
-#define SDRAM_BASE_ADDR 0xA0000000
-#define CSD1_BASE_ADDR 0xB0000000
-
-#define CS0_BASE_ADDR 0xC0000000
-#define CS1_BASE_ADDR 0xC8000000
-#define CS2_BASE_ADDR 0xD0000000
-#define CS3_BASE_ADDR 0xD2000000
-#define CS4_BASE_ADDR 0xD4000000
-#define CS5_BASE_ADDR 0xD6000000
-#define PCMCIA_MEM_BASE_ADDR 0xDC000000
-
-/*
- * This macro defines the physical to virtual address mapping for all the
- * peripheral modules. It is used by passing in the physical address as x
- * and returning the virtual address. If the physical address is not mapped,
- * it returns 0xDEADBEEF
- */
-#define IO_ADDRESS(x) \
- (void __force __iomem *) \
- (((x >= AIPI_BASE_ADDR) && (x < (AIPI_BASE_ADDR + AIPI_SIZE))) ? \
- AIPI_IO_ADDRESS(x) : \
- ((x >= SAHB1_BASE_ADDR) && (x < (SAHB1_BASE_ADDR + SAHB1_SIZE))) ? \
- SAHB1_IO_ADDRESS(x) : \
- ((x >= X_MEMC_BASE_ADDR) && (x < (X_MEMC_BASE_ADDR + X_MEMC_SIZE))) ? \
- X_MEMC_IO_ADDRESS(x) : 0xDEADBEEF)
-
-/* define the address mapping macros: in physical address order */
-#define AIPI_IO_ADDRESS(x) \
- (((x) - AIPI_BASE_ADDR) + AIPI_BASE_ADDR_VIRT)
-
-#define AVIC_IO_ADDRESS(x) AIPI_IO_ADDRESS(x)
-
-#define SAHB1_IO_ADDRESS(x) \
- (((x) - SAHB1_BASE_ADDR) + SAHB1_BASE_ADDR_VIRT)
-
-#define CS4_IO_ADDRESS(x) \
- (((x) - CS4_BASE_ADDR) + CS4_BASE_ADDR_VIRT)
-
-#define X_MEMC_IO_ADDRESS(x) \
- (((x) - X_MEMC_BASE_ADDR) + X_MEMC_BASE_ADDR_VIRT)
-
-#define PCMCIA_IO_ADDRESS(x) \
- (((x) - X_MEMC_BASE_ADDR) + X_MEMC_BASE_ADDR_VIRT)
-
-/* fixed interrput numbers */
+/* fixed interrupt numbers */
#define MXC_INT_CCM 63
#define MXC_INT_IIM 62
-#define MXC_INT_LCDC 61
-#define MXC_INT_SLCDC 60
#define MXC_INT_SAHARA 59
#define MXC_INT_SCC_SCM 58
#define MXC_INT_SCC_SMN 57
@@ -167,54 +87,12 @@
#define MXC_INT_USB2 55
#define MXC_INT_USB1 54
#define MXC_INT_VPU 53
-#define MXC_INT_EMMAPP 52
-#define MXC_INT_EMMAPRP 51
#define MXC_INT_FEC 50
#define MXC_INT_UART5 49
#define MXC_INT_UART6 48
-#define MXC_INT_DMACH15 47
-#define MXC_INT_DMACH14 46
-#define MXC_INT_DMACH13 45
-#define MXC_INT_DMACH12 44
-#define MXC_INT_DMACH11 43
-#define MXC_INT_DMACH10 42
-#define MXC_INT_DMACH9 41
-#define MXC_INT_DMACH8 40
-#define MXC_INT_DMACH7 39
-#define MXC_INT_DMACH6 38
-#define MXC_INT_DMACH5 37
-#define MXC_INT_DMACH4 36
-#define MXC_INT_DMACH3 35
-#define MXC_INT_DMACH2 34
-#define MXC_INT_DMACH1 33
-#define MXC_INT_DMACH0 32
-#define MXC_INT_CSI 31
#define MXC_INT_ATA 30
-#define MXC_INT_NANDFC 29
-#define MXC_INT_PCMCIA 28
-#define MXC_INT_WDOG 27
-#define MXC_INT_GPT1 26
-#define MXC_INT_GPT2 25
-#define MXC_INT_GPT3 24
-#define MXC_INT_GPT INT_GPT1
-#define MXC_INT_PWM 23
-#define MXC_INT_RTC 22
-#define MXC_INT_KPP 21
-#define MXC_INT_UART1 20
-#define MXC_INT_UART2 19
-#define MXC_INT_UART3 18
-#define MXC_INT_UART4 17
-#define MXC_INT_CSPI1 16
-#define MXC_INT_CSPI2 15
-#define MXC_INT_SSI1 14
-#define MXC_INT_SSI2 13
-#define MXC_INT_I2C 12
-#define MXC_INT_SDHC1 11
-#define MXC_INT_SDHC2 10
#define MXC_INT_SDHC3 9
-#define MXC_INT_GPIO 8
#define MXC_INT_SDHC 7
-#define MXC_INT_CSPI3 6
#define MXC_INT_RTIC 5
#define MXC_INT_GPT4 4
#define MXC_INT_GPT5 3
@@ -228,36 +106,9 @@
#define DMA_REQ_UART6_TX 34
#define DMA_REQ_UART5_RX 33
#define DMA_REQ_UART5_TX 32
-#define DMA_REQ_CSI_RX 31
-#define DMA_REQ_CSI_STAT 30
#define DMA_REQ_ATA_RCV 29
#define DMA_REQ_ATA_TX 28
-#define DMA_REQ_UART1_TX 27
-#define DMA_REQ_UART1_RX 26
-#define DMA_REQ_UART2_TX 25
-#define DMA_REQ_UART2_RX 24
-#define DMA_REQ_UART3_TX 23
-#define DMA_REQ_UART3_RX 22
-#define DMA_REQ_UART4_TX 21
-#define DMA_REQ_UART4_RX 20
-#define DMA_REQ_CSPI1_TX 19
-#define DMA_REQ_CSPI1_RX 18
-#define DMA_REQ_CSPI2_TX 17
-#define DMA_REQ_CSPI2_RX 16
-#define DMA_REQ_SSI1_TX1 15
-#define DMA_REQ_SSI1_RX1 14
-#define DMA_REQ_SSI1_TX0 13
-#define DMA_REQ_SSI1_RX0 12
-#define DMA_REQ_SSI2_TX1 11
-#define DMA_REQ_SSI2_RX1 10
-#define DMA_REQ_SSI2_TX0 9
-#define DMA_REQ_SSI2_RX0 8
-#define DMA_REQ_SDHC1 7
-#define DMA_REQ_SDHC2 6
#define DMA_REQ_MSHC 4
-#define DMA_REQ_EXT 3
-#define DMA_REQ_CSPI3_TX 2
-#define DMA_REQ_CSPI3_RX 1
/* silicon revisions specific to i.MX27 */
#define CHIP_REV_1_0 0x00
@@ -267,20 +118,6 @@
extern int mx27_revision(void);
#endif
-/* gpio and gpio based interrupt handling */
-#define GPIO_DR 0x1C
-#define GPIO_GDIR 0x00
-#define GPIO_PSR 0x24
-#define GPIO_ICR1 0x28
-#define GPIO_ICR2 0x2C
-#define GPIO_IMR 0x30
-#define GPIO_ISR 0x34
-#define GPIO_INT_LOW_LEV 0x3
-#define GPIO_INT_HIGH_LEV 0x2
-#define GPIO_INT_RISE_EDGE 0x0
-#define GPIO_INT_FALL_EDGE 0x1
-#define GPIO_INT_NONE 0x4
-
/* Mandatory defines used globally */
/* this is an i.MX27 CPU */
diff --git a/arch/arm/plat-mxc/include/mach/mx2x.h b/arch/arm/plat-mxc/include/mach/mx2x.h
new file mode 100644
index 0000000..fc40d3a
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mx2x.h
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ *
+ * This contains hardware definitions that are common between i.MX21 and
+ * i.MX27.
+ *
+ * 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.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef __ASM_ARCH_MXC_MX2x_H__
+#define __ASM_ARCH_MXC_MX2x_H__
+
+#ifndef __ASM_ARCH_MXC_HARDWARE_H__
+#error "Do not include directly."
+#endif
+
+/* The following addresses are common between i.MX21 and i.MX27 */
+
+/* Register offests */
+#define AIPI_BASE_ADDR 0x10000000
+#define AIPI_BASE_ADDR_VIRT 0xF4000000
+#define AIPI_SIZE SZ_1M
+
+#define DMA_BASE_ADDR (AIPI_BASE_ADDR + 0x01000)
+#define WDOG_BASE_ADDR (AIPI_BASE_ADDR + 0x02000)
+#define GPT1_BASE_ADDR (AIPI_BASE_ADDR + 0x03000)
+#define GPT2_BASE_ADDR (AIPI_BASE_ADDR + 0x04000)
+#define GPT3_BASE_ADDR (AIPI_BASE_ADDR + 0x05000)
+#define PWM_BASE_ADDR (AIPI_BASE_ADDR + 0x06000)
+#define RTC_BASE_ADDR (AIPI_BASE_ADDR + 0x07000)
+#define KPP_BASE_ADDR (AIPI_BASE_ADDR + 0x08000)
+#define OWIRE_BASE_ADDR (AIPI_BASE_ADDR + 0x09000)
+#define UART1_BASE_ADDR (AIPI_BASE_ADDR + 0x0A000)
+#define UART2_BASE_ADDR (AIPI_BASE_ADDR + 0x0B000)
+#define UART3_BASE_ADDR (AIPI_BASE_ADDR + 0x0C000)
+#define UART4_BASE_ADDR (AIPI_BASE_ADDR + 0x0D000)
+#define CSPI1_BASE_ADDR (AIPI_BASE_ADDR + 0x0E000)
+#define CSPI2_BASE_ADDR (AIPI_BASE_ADDR + 0x0F000)
+#define SSI1_BASE_ADDR (AIPI_BASE_ADDR + 0x10000)
+#define SSI2_BASE_ADDR (AIPI_BASE_ADDR + 0x11000)
+#define I2C_BASE_ADDR (AIPI_BASE_ADDR + 0x12000)
+#define SDHC1_BASE_ADDR (AIPI_BASE_ADDR + 0x13000)
+#define SDHC2_BASE_ADDR (AIPI_BASE_ADDR + 0x14000)
+#define GPIO_BASE_ADDR (AIPI_BASE_ADDR + 0x15000)
+#define AUDMUX_BASE_ADDR (AIPI_BASE_ADDR + 0x16000)
+#define CSPI3_BASE_ADDR (AIPI_BASE_ADDR + 0x17000)
+#define LCDC_BASE_ADDR (AIPI_BASE_ADDR + 0x21000)
+#define SLCDC_BASE_ADDR (AIPI_BASE_ADDR + 0x22000)
+#define USBOTG_BASE_ADDR (AIPI_BASE_ADDR + 0x24000)
+#define EMMA_PP_BASE_ADDR (AIPI_BASE_ADDR + 0x26000)
+#define EMMA_PRP_BASE_ADDR (AIPI_BASE_ADDR + 0x26400)
+#define CCM_BASE_ADDR (AIPI_BASE_ADDR + 0x27000)
+#define SYSCTRL_BASE_ADDR (AIPI_BASE_ADDR + 0x27800)
+#define JAM_BASE_ADDR (AIPI_BASE_ADDR + 0x3E000)
+#define MAX_BASE_ADDR (AIPI_BASE_ADDR + 0x3F000)
+
+#define AVIC_BASE_ADDR 0x10040000
+
+#define SAHB1_BASE_ADDR 0x80000000
+#define SAHB1_BASE_ADDR_VIRT 0xF4100000
+#define SAHB1_SIZE SZ_1M
+
+#define CSI_BASE_ADDR (SAHB1_BASE_ADDR + 0x0000)
+
+/*
+ * This macro defines the physical to virtual address mapping for all the
+ * peripheral modules. It is used by passing in the physical address as x
+ * and returning the virtual address. If the physical address is not mapped,
+ * it returns 0xDEADBEEF
+ */
+#define IO_ADDRESS(x) \
+ (void __force __iomem *) \
+ (((x >= AIPI_BASE_ADDR) && (x < (AIPI_BASE_ADDR + AIPI_SIZE))) ? \
+ AIPI_IO_ADDRESS(x) : \
+ ((x >= SAHB1_BASE_ADDR) && (x < (SAHB1_BASE_ADDR + SAHB1_SIZE))) ? \
+ SAHB1_IO_ADDRESS(x) : \
+ ((x >= X_MEMC_BASE_ADDR) && (x < (X_MEMC_BASE_ADDR + X_MEMC_SIZE))) ? \
+ X_MEMC_IO_ADDRESS(x) : 0xDEADBEEF)
+
+/* define the address mapping macros: in physical address order */
+#define AIPI_IO_ADDRESS(x) \
+ (((x) - AIPI_BASE_ADDR) + AIPI_BASE_ADDR_VIRT)
+
+#define AVIC_IO_ADDRESS(x) AIPI_IO_ADDRESS(x)
+
+#define SAHB1_IO_ADDRESS(x) \
+ (((x) - SAHB1_BASE_ADDR) + SAHB1_BASE_ADDR_VIRT)
+
+#define CS4_IO_ADDRESS(x) \
+ (((x) - CS4_BASE_ADDR) + CS4_BASE_ADDR_VIRT)
+
+#define X_MEMC_IO_ADDRESS(x) \
+ (((x) - X_MEMC_BASE_ADDR) + X_MEMC_BASE_ADDR_VIRT)
+
+#define PCMCIA_IO_ADDRESS(x) \
+ (((x) - X_MEMC_BASE_ADDR) + X_MEMC_BASE_ADDR_VIRT)
+
+/* fixed interrupt numbers */
+#define MXC_INT_LCDC 61
+#define MXC_INT_SLCDC 60
+#define MXC_INT_EMMAPP 52
+#define MXC_INT_EMMAPRP 51
+#define MXC_INT_DMACH15 47
+#define MXC_INT_DMACH14 46
+#define MXC_INT_DMACH13 45
+#define MXC_INT_DMACH12 44
+#define MXC_INT_DMACH11 43
+#define MXC_INT_DMACH10 42
+#define MXC_INT_DMACH9 41
+#define MXC_INT_DMACH8 40
+#define MXC_INT_DMACH7 39
+#define MXC_INT_DMACH6 38
+#define MXC_INT_DMACH5 37
+#define MXC_INT_DMACH4 36
+#define MXC_INT_DMACH3 35
+#define MXC_INT_DMACH2 34
+#define MXC_INT_DMACH1 33
+#define MXC_INT_DMACH0 32
+#define MXC_INT_CSI 31
+#define MXC_INT_NANDFC 29
+#define MXC_INT_PCMCIA 28
+#define MXC_INT_WDOG 27
+#define MXC_INT_GPT1 26
+#define MXC_INT_GPT2 25
+#define MXC_INT_GPT3 24
+#define MXC_INT_GPT INT_GPT1
+#define MXC_INT_PWM 23
+#define MXC_INT_RTC 22
+#define MXC_INT_KPP 21
+#define MXC_INT_UART1 20
+#define MXC_INT_UART2 19
+#define MXC_INT_UART3 18
+#define MXC_INT_UART4 17
+#define MXC_INT_CSPI1 16
+#define MXC_INT_CSPI2 15
+#define MXC_INT_SSI1 14
+#define MXC_INT_SSI2 13
+#define MXC_INT_I2C 12
+#define MXC_INT_SDHC1 11
+#define MXC_INT_SDHC2 10
+#define MXC_INT_GPIO 8
+#define MXC_INT_CSPI3 6
+
+/* gpio and gpio based interrupt handling */
+#define GPIO_DR 0x1C
+#define GPIO_GDIR 0x00
+#define GPIO_PSR 0x24
+#define GPIO_ICR1 0x28
+#define GPIO_ICR2 0x2C
+#define GPIO_IMR 0x30
+#define GPIO_ISR 0x34
+#define GPIO_INT_LOW_LEV 0x3
+#define GPIO_INT_HIGH_LEV 0x2
+#define GPIO_INT_RISE_EDGE 0x0
+#define GPIO_INT_FALL_EDGE 0x1
+#define GPIO_INT_NONE 0x4
+
+/* fixed DMA request numbers */
+#define DMA_REQ_CSI_RX 31
+#define DMA_REQ_CSI_STAT 30
+#define DMA_REQ_UART1_TX 27
+#define DMA_REQ_UART1_RX 26
+#define DMA_REQ_UART2_TX 25
+#define DMA_REQ_UART2_RX 24
+#define DMA_REQ_UART3_TX 23
+#define DMA_REQ_UART3_RX 22
+#define DMA_REQ_UART4_TX 21
+#define DMA_REQ_UART4_RX 20
+#define DMA_REQ_CSPI1_TX 19
+#define DMA_REQ_CSPI1_RX 18
+#define DMA_REQ_CSPI2_TX 17
+#define DMA_REQ_CSPI2_RX 16
+#define DMA_REQ_SSI1_TX1 15
+#define DMA_REQ_SSI1_RX1 14
+#define DMA_REQ_SSI1_TX0 13
+#define DMA_REQ_SSI1_RX0 12
+#define DMA_REQ_SSI2_TX1 11
+#define DMA_REQ_SSI2_RX1 10
+#define DMA_REQ_SSI2_TX0 9
+#define DMA_REQ_SSI2_RX0 8
+#define DMA_REQ_SDHC1 7
+#define DMA_REQ_SDHC2 6
+#define DMA_REQ_EXT 3
+#define DMA_REQ_CSPI3_TX 2
+#define DMA_REQ_CSPI3_RX 1
+
+#endif /* __ASM_ARCH_MXC_MX2x_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index bbd848e00..d6b0c47 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -37,6 +37,10 @@
# define cpu_is_mx27() (0)
#endif
+#ifndef CONFIG_MACH_MX21
+# define cpu_is_mx21() (0)
+#endif
+
#if defined(CONFIG_ARCH_MX3) || defined(CONFIG_ARCH_MX2)
#define CSCR_U(n) (IO_ADDRESS(WEIM_BASE_ADDR) + n * 0x10)
#define CSCR_L(n) (IO_ADDRESS(WEIM_BASE_ADDR) + n * 0x10 + 0x4)