imx: define functions to configure chip selects in the WEIM

This has the addional effect that the macros CSCR_U, CSCR_L and CSCR_A
are not used anymore in mach-pcm038.c and mach-qong.c.  These still use
the deprecated IO_ADDRESS macro and shouldn't be used in new code.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: Dmitriy Taychenachev <dimichxp@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/include/mach/mx31.h b/arch/arm/plat-mxc/include/mach/mx31.h
index 62d26da10c66..fb90e119c2b5 100644
--- a/arch/arm/plat-mxc/include/mach/mx31.h
+++ b/arch/arm/plat-mxc/include/mach/mx31.h
@@ -1,6 +1,10 @@
 #ifndef __MACH_MX31_H__
 #define __MACH_MX31_H__
 
+#ifndef __ASSEMBLER__
+#include <linux/io.h>
+#endif
+
 /*
  * IRAM
  */
@@ -110,6 +114,11 @@
 #define MX31_EMI_CTL_BASE_ADDR                  (MX31_X_MEMC_BASE_ADDR + 0x4000)
 #define MX31_PCMCIA_CTL_BASE_ADDR               MX31_EMI_CTL_BASE_ADDR
 
+#define MX31_WEIM_CSCRx_BASE_ADDR(cs)   (MX31_WEIM_BASE_ADDR + (cs) * 0x10)
+#define MX31_WEIM_CSCRxU(cs)                    (MX31_WEIM_CSCRx_BASE_ADDR(cs))
+#define MX31_WEIM_CSCRxL(cs)                    (MX31_WEIM_CSCRx_BASE_ADDR(cs) + 0x4)
+#define MX31_WEIM_CSCRxA(cs)                    (MX31_WEIM_CSCRx_BASE_ADDR(cs) + 0x8)
+
 #define MX31_PCMCIA_MEM_BASE_ADDR       0xbc000000
 
 #define MX31_IO_ADDRESS(x) (                                            \
@@ -119,6 +128,16 @@
         IMX_IO_ADDRESS(x, MX31_X_MEMC) ?:                               \
         IMX_IO_ADDRESS(x, MX31_SPBA0))
 
+#ifndef __ASSEMBLER__
+static inline void mx31_setup_weimcs(size_t cs,
+                unsigned upper, unsigned lower, unsigned addional)
+{
+        __raw_writel(upper, MX31_IO_ADDRESS(MX31_WEIM_CSCRxU(cs)));
+        __raw_writel(lower, MX31_IO_ADDRESS(MX31_WEIM_CSCRxL(cs)));
+        __raw_writel(addional, MX31_IO_ADDRESS(MX31_WEIM_CSCRxA(cs)));
+}
+#endif
+
 #define MX31_INT_I2C3           3
 #define MX31_INT_I2C2           4
 #define MX31_INT_MPEG4_ENCODER  5