ARM: shmobile: use common DMAEngine definitions on sh73a0

This patch switch over to use common DMAEngine definitions,
and reduced a waste of code.

It is easy to understand if sh_dmae_pdata / sh_dmae_slave_config
settings are used defined value instead of direct value.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 2c7bb03..d230af6 100644 (file)
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -30,6 +30,7 @@
 #include <linux/sh_dma.h>
 #include <linux/sh_intc.h>
 #include <linux/sh_timer.h>
+#include <mach/dma-register.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 #include <mach/sh73a0.h>
@@ -415,32 +416,6 @@ static struct platform_device i2c4_device = {
        .num_resources  = ARRAY_SIZE(i2c4_resources),
 };
 
-/* Transmit sizes and respective CHCR register values */
-enum {
-       XMIT_SZ_8BIT            = 0,
-       XMIT_SZ_16BIT           = 1,
-       XMIT_SZ_32BIT           = 2,
-       XMIT_SZ_64BIT           = 7,
-       XMIT_SZ_128BIT          = 3,
-       XMIT_SZ_256BIT          = 4,
-       XMIT_SZ_512BIT          = 5,
-};
-
-/* log2(size / 8) - used to calculate number of transfers */
-#define TS_SHIFT {                     \
-       [XMIT_SZ_8BIT]          = 0,    \
-       [XMIT_SZ_16BIT]         = 1,    \
-       [XMIT_SZ_32BIT]         = 2,    \
-       [XMIT_SZ_64BIT]         = 3,    \
-       [XMIT_SZ_128BIT]        = 4,    \
-       [XMIT_SZ_256BIT]        = 5,    \
-       [XMIT_SZ_512BIT]        = 6,    \
-}
-
-#define TS_INDEX2VAL(i) ((((i) & 3) << 3) | (((i) & 0xc) << (20 - 2)))
-#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL((xmit_sz)))
-#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL((xmit_sz)))
-
 static const struct sh_dmae_slave_config sh73a0_dmae_slaves[] = {
        {
                .slave_id       = SHDMA_SLAVE_SCIF0_TX,
@@ -604,19 +579,17 @@ static const struct sh_dmae_channel sh73a0_dmae_channels[] = {
        DMAE_CHANNEL(0x8980),
 };
 
-static const unsigned int ts_shift[] = TS_SHIFT;
-
 static struct sh_dmae_pdata sh73a0_dmae_platform_data = {
        .slave          = sh73a0_dmae_slaves,
        .slave_num      = ARRAY_SIZE(sh73a0_dmae_slaves),
        .channel        = sh73a0_dmae_channels,
        .channel_num    = ARRAY_SIZE(sh73a0_dmae_channels),
-       .ts_low_shift   = 3,
-       .ts_low_mask    = 0x18,
-       .ts_high_shift  = (20 - 2),     /* 2 bits for shifted low TS */
-       .ts_high_mask   = 0x00300000,
-       .ts_shift       = ts_shift,
-       .ts_shift_num   = ARRAY_SIZE(ts_shift),
+       .ts_low_shift   = TS_LOW_SHIFT,
+       .ts_low_mask    = TS_LOW_BIT << TS_LOW_SHIFT,
+       .ts_high_shift  = TS_HI_SHIFT,
+       .ts_high_mask   = TS_HI_BIT << TS_HI_SHIFT,
+       .ts_shift       = dma_ts_shift,
+       .ts_shift_num   = ARRAY_SIZE(dma_ts_shift),
        .dmaor_init     = DMAOR_DME,
 };
 
@@ -713,12 +686,12 @@ static struct sh_dmae_pdata sh73a0_mpdma_platform_data = {
        .slave_num      = ARRAY_SIZE(sh73a0_mpdma_slaves),
        .channel        = sh73a0_mpdma_channels,
        .channel_num    = ARRAY_SIZE(sh73a0_mpdma_channels),
-       .ts_low_shift   = 3,
-       .ts_low_mask    = 0x18,
-       .ts_high_shift  = (20 - 2),     /* 2 bits for shifted low TS */
-       .ts_high_mask   = 0x00300000,
-       .ts_shift       = ts_shift,
-       .ts_shift_num   = ARRAY_SIZE(ts_shift),
+       .ts_low_shift   = TS_LOW_SHIFT,
+       .ts_low_mask    = TS_LOW_BIT << TS_LOW_SHIFT,
+       .ts_high_shift  = TS_HI_SHIFT,
+       .ts_high_mask   = TS_HI_BIT << TS_HI_SHIFT,
+       .ts_shift       = dma_ts_shift,
+       .ts_shift_num   = ARRAY_SIZE(dma_ts_shift),
        .dmaor_init     = DMAOR_DME,
        .chclr_present  = 1,
 };