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authorTomasz Figa <tomasz.figa@gmail.com>2013-10-16 21:10:54 +0200
committerMark Brown <broonie@linaro.org>2013-11-24 15:38:24 +0100
commit1db0287ab186637488e51ae43109692624f2d5a3 (patch)
tree13a3fa95b54b8f9b1e56125a5d369cd3d9fb37c5 /arch/arm/plat-samsung/devs.c
parentspi: s3c64xx: Do not require legacy DMA API in case of S3C64XX (diff)
downloadlinux-1db0287ab186637488e51ae43109692624f2d5a3.tar.xz
linux-1db0287ab186637488e51ae43109692624f2d5a3.zip
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver
This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'arch/arm/plat-samsung/devs.c')
-rw-r--r--arch/arm/plat-samsung/devs.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 99a3590f0349..ac07e871f6a7 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -1468,6 +1468,8 @@ void __init s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi0_cfg_gpio;
#if defined(CONFIG_PL330_DMA)
pd.filter = pl330_filter;
+#elif defined(CONFIG_S3C64XX_PL080)
+ pd.filter = pl08x_filter_id;
#elif defined(CONFIG_S3C24XX_DMAC)
pd.filter = s3c24xx_dma_filter;
#endif
@@ -1509,8 +1511,10 @@ void __init s3c64xx_spi1_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
pd.num_cs = num_cs;
pd.src_clk_nr = src_clk_nr;
pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi1_cfg_gpio;
-#ifdef CONFIG_PL330_DMA
+#if defined(CONFIG_PL330_DMA)
pd.filter = pl330_filter;
+#elif defined(CONFIG_S3C64XX_PL080)
+ pd.filter = pl08x_filter_id;
#endif
s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi1);
@@ -1550,8 +1554,10 @@ void __init s3c64xx_spi2_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
pd.num_cs = num_cs;
pd.src_clk_nr = src_clk_nr;
pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi2_cfg_gpio;
-#ifdef CONFIG_PL330_DMA
+#if defined(CONFIG_PL330_DMA)
pd.filter = pl330_filter;
+#elif defined(CONFIG_S3C64XX_PL080)
+ pd.filter = pl08x_filter_id;
#endif
s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi2);