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>

1 files changed, 200 insertions, 0 deletions

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 000000000000..fc40d3ab8c5b
--- /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__ */