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Date: Sat, 11 May 2013 13:32:08 +0200
From: Heiko Stübner <heiko@...ech.de>
To: Dan Williams <djbw@...com>
Cc: Vinod Koul <vinod.koul@...el.com>, linux-kernel@...r.kernel.org,
linux-samsung-soc@...r.kernel.org, kgene.kim@...sung.com,
linux-arm-kernel@...ts.infradead.org
Subject: [RFC 3/4] ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443
This includes defining the mapping for the request sources.
Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
arch/arm/mach-s3c24xx/common.c | 103 ++++++++++++++++++++++++++++++++++++++++
arch/arm/mach-s3c24xx/common.h | 3 +
2 files changed, 106 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index c157103..9f64037 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -30,6 +30,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
+#include <linux/platform_data/dma-s3c24xx.h>
#include <mach/hardware.h>
#include <mach/regs-clock.h>
@@ -302,3 +303,105 @@ void __init_or_cpufreq s3c24xx_setup_clocks(unsigned long fclk,
clk_p.rate = pclk;
clk_f.rate = fclk;
}
+
+#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
+ defined(CONFIG_CPUS_3C2440) || defined(CONFIG_CPUS_3C2442)
+static struct resource s3c2410_dma_resource[] = {
+ [0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
+ [1] = DEFINE_RES_IRQ(IRQ_DMA0),
+ [2] = DEFINE_RES_IRQ(IRQ_DMA1),
+ [3] = DEFINE_RES_IRQ(IRQ_DMA2),
+ [4] = DEFINE_RES_IRQ(IRQ_DMA3),
+};
+#endif
+
+#ifdef CONFIG_CPU_S3C2412
+static int s3c2412_dma_reqsel[S3C24XX_DMACH_MAX] = {
+ [S3C24XX_DMACH_XD0] = 17,
+ [S3C24XX_DMACH_XD1] = 18,
+ [S3C24XX_DMACH_SDI] = 10,
+ [S3C24XX_DMACH_SPI0_RX] = 1,
+ [S3C24XX_DMACH_SPI0_TX] = 0,
+ [S3C24XX_DMACH_SPI1_RX] = 3,
+ [S3C24XX_DMACH_SPI1_TX] = 2,
+ [S3C24XX_DMACH_UART0] = 19,
+ [S3C24XX_DMACH_UART1] = 21,
+ [S3C24XX_DMACH_UART2] = 23,
+ [S3C24XX_DMACH_UART0_SRC2] = 20,
+ [S3C24XX_DMACH_UART1_SRC2] = 22,
+ [S3C24XX_DMACH_UART2_SRC2] = 24,
+ [S3C24XX_DMACH_TIMER] = 9,
+ [S3C24XX_DMACH_I2S_RX] = 5,
+ [S3C24XX_DMACH_I2S_TX] = 4,
+ [S3C24XX_DMACH_USB_EP1] = 13,
+ [S3C24XX_DMACH_USB_EP2] = 14,
+ [S3C24XX_DMACH_USB_EP3] = 15,
+ [S3C24XX_DMACH_USB_EP4] = 16,
+};
+
+static struct s3c24xx_dma_platdata s3c2412_dma_platdata = {
+ .num_phy_channels = 4,
+ .reqsel_map = s3c2412_dma_reqsel,
+};
+
+struct platform_device s3c2412_device_dma = {
+ .name = "s3c2412-dma",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(s3c2410_dma_resource),
+ .resource = s3c2410_dma_resource,
+ .dev = {
+ .platform_data = &s3c2412_dma_platdata,
+ },
+};
+#endif
+
+#if defined(CONFIG_CPUS_3C2443) || defined(CONFIG_CPU_S3C2416)
+static struct resource s3c2443_dma_resource[] = {
+ [0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
+ [1] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA0),
+ [2] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA1),
+ [3] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA2),
+ [4] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA3),
+ [5] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA4),
+ [6] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA5),
+};
+
+static int s3c2443_dma_reqsel[S3C24XX_DMACH_MAX] = {
+ [S3C24XX_DMACH_XD0] = 17,
+ [S3C24XX_DMACH_XD1] = 18,
+ [S3C24XX_DMACH_SDI] = 10,
+ [S3C24XX_DMACH_SPI0_RX] = 1,
+ [S3C24XX_DMACH_SPI0_TX] = 0,
+ [S3C24XX_DMACH_SPI1_RX] = 3,
+ [S3C24XX_DMACH_SPI1_TX] = 2,
+ [S3C24XX_DMACH_UART0] = 19,
+ [S3C24XX_DMACH_UART1] = 21,
+ [S3C24XX_DMACH_UART2] = 23,
+ [S3C24XX_DMACH_UART3] = 25,
+ [S3C24XX_DMACH_UART0_SRC2] = 20,
+ [S3C24XX_DMACH_UART1_SRC2] = 22,
+ [S3C24XX_DMACH_UART2_SRC2] = 24,
+ [S3C24XX_DMACH_UART3_SRC2] = 26,
+ [S3C24XX_DMACH_TIMER] = 9,
+ [S3C24XX_DMACH_I2S_RX] = 5,
+ [S3C24XX_DMACH_I2S_TX] = 4,
+ [S3C24XX_DMACH_PCM_IN] = 28,
+ [S3C24XX_DMACH_PCM_OUT] = 27,
+ [S3C24XX_DMACH_MIC_IN] = 29,
+};
+
+static struct s3c24xx_dma_platdata s3c2443_dma_platdata = {
+ .num_phy_channels = 6,
+ .reqsel_map = s3c2443_dma_reqsel,
+};
+
+struct platform_device s3c2443_device_dma = {
+ .name = "s3c2443-dma",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(s3c2443_dma_resource),
+ .resource = s3c2443_dma_resource,
+ .dev = {
+ .platform_data = &s3c2443_dma_platdata,
+ },
+};
+#endif
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index 307c371..7e134d9 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -107,4 +107,7 @@ extern void s3c2443_init_irq(void);
extern struct syscore_ops s3c24xx_irq_syscore_ops;
+extern struct platform_device s3c2412_device_dma;
+extern struct platform_device s3c2443_device_dma;
+
#endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */
--
1.7.2.3
--
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