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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:28:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:28:38 -0800
commitdfc1ebe76663d582a01c9dc572395cf8086d01de (patch)
tree54a5ac91214a90f82c27b6e38099a4470837729e /arch/arm/plat-samsung
parentacc952c1f373bf3f66cc7a10680eee1762bed40b (diff)
parentb001befe58691ef3627458cd814e8cee7f845c5f (diff)
downloadblackbird-op-linux-dfc1ebe76663d582a01c9dc572395cf8086d01de.tar.gz
blackbird-op-linux-dfc1ebe76663d582a01c9dc572395cf8086d01de.zip
Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Device tree conversions for samsung and tegra Both platforms had some initial device tree support, but this adds much more to actually make it usable. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits) ARM: dts: Add intial dts file for EXYNOS4210 SoC, SMDKV310 and ORIGEN ARM: EXYNOS: Add Exynos4 device tree enabled board file rtc: rtc-s3c: Add device tree support input: samsung-keypad: Add device tree support ARM: S5PV210: Modify platform data for pl330 driver ARM: S5PC100: Modify platform data for pl330 driver ARM: S5P64x0: Modify platform data for pl330 driver ARM: EXYNOS: Add a alias for pdma clocks ARM: EXYNOS: Limit usage of pl330 device instance to non-dt build ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappers DMA: PL330: Add device tree support ARM: EXYNOS: Modify platform data for pl330 driver DMA: PL330: Infer transfer direction from transfer request instead of platform data DMA: PL330: move filter function into driver serial: samsung: Fix build for non-Exynos4210 devices serial: samsung: add device tree support serial: samsung: merge probe() function from all SoC specific extensions serial: samsung: merge all SoC specific port reset functions ARM: SAMSUNG: register uart clocks to clock lookup list serial: samsung: remove all uses of get_clksrc and set_clksrc ... Fix up fairly trivial conflicts in arch/arm/mach-s3c2440/clock.c and drivers/tty/serial/Kconfig both due to just adding code close to changes.
Diffstat (limited to 'arch/arm/plat-samsung')
-rw-r--r--arch/arm/plat-samsung/dma-ops.c15
-rw-r--r--arch/arm/plat-samsung/include/plat/dma-ops.h1
-rw-r--r--arch/arm/plat-samsung/include/plat/dma-pl330.h3
-rw-r--r--arch/arm/plat-samsung/include/plat/irqs.h3
-rw-r--r--arch/arm/plat-samsung/include/plat/regs-serial.h45
5 files changed, 35 insertions, 32 deletions
diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c
index 93a994a5dd8f..2cded872f22b 100644
--- a/arch/arm/plat-samsung/dma-ops.c
+++ b/arch/arm/plat-samsung/dma-ops.c
@@ -18,23 +18,24 @@
#include <mach/dma.h>
-static inline bool pl330_filter(struct dma_chan *chan, void *param)
-{
- struct dma_pl330_peri *peri = chan->private;
- return peri->peri_id == (unsigned)param;
-}
-
static unsigned samsung_dmadev_request(enum dma_ch dma_ch,
struct samsung_dma_info *info)
{
struct dma_chan *chan;
dma_cap_mask_t mask;
struct dma_slave_config slave_config;
+ void *filter_param;
dma_cap_zero(mask);
dma_cap_set(info->cap, mask);
- chan = dma_request_channel(mask, pl330_filter, (void *)dma_ch);
+ /*
+ * If a dma channel property of a device node from device tree is
+ * specified, use that as the fliter parameter.
+ */
+ filter_param = (dma_ch == DMACH_DT_PROP) ? (void *)info->dt_dmach_prop :
+ (void *)dma_ch;
+ chan = dma_request_channel(mask, pl330_filter, filter_param);
if (info->direction == DMA_FROM_DEVICE) {
memset(&slave_config, 0, sizeof(struct dma_slave_config));
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
index 4c1a363526cf..22eafc310bd7 100644
--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -31,6 +31,7 @@ struct samsung_dma_info {
enum dma_slave_buswidth width;
dma_addr_t fifo;
struct s3c2410_dma_client *client;
+ struct property *dt_dmach_prop;
};
struct samsung_dma_ops {
diff --git a/arch/arm/plat-samsung/include/plat/dma-pl330.h b/arch/arm/plat-samsung/include/plat/dma-pl330.h
index 2e55e5958674..c5eaad529de5 100644
--- a/arch/arm/plat-samsung/include/plat/dma-pl330.h
+++ b/arch/arm/plat-samsung/include/plat/dma-pl330.h
@@ -21,7 +21,8 @@
* use these just as IDs.
*/
enum dma_ch {
- DMACH_UART0_RX,
+ DMACH_DT_PROP = -1,
+ DMACH_UART0_RX = 0,
DMACH_UART0_TX,
DMACH_UART1_RX,
DMACH_UART1_TX,
diff --git a/arch/arm/plat-samsung/include/plat/irqs.h b/arch/arm/plat-samsung/include/plat/irqs.h
index 08d1a7ef97b7..df46b776976a 100644
--- a/arch/arm/plat-samsung/include/plat/irqs.h
+++ b/arch/arm/plat-samsung/include/plat/irqs.h
@@ -44,13 +44,14 @@
#define S5P_IRQ_VIC2(x) (S5P_VIC2_BASE + (x))
#define S5P_IRQ_VIC3(x) (S5P_VIC3_BASE + (x))
-#define S5P_TIMER_IRQ(x) (11 + (x))
+#define S5P_TIMER_IRQ(x) (IRQ_TIMER_BASE + (x))
#define IRQ_TIMER0 S5P_TIMER_IRQ(0)
#define IRQ_TIMER1 S5P_TIMER_IRQ(1)
#define IRQ_TIMER2 S5P_TIMER_IRQ(2)
#define IRQ_TIMER3 S5P_TIMER_IRQ(3)
#define IRQ_TIMER4 S5P_TIMER_IRQ(4)
+#define IRQ_TIMER_COUNT (5)
#define IRQ_EINT(x) ((x) < 16 ? ((x) + S5P_EINT_BASE1) \
: ((x) - 16 + S5P_EINT_BASE2))
diff --git a/arch/arm/plat-samsung/include/plat/regs-serial.h b/arch/arm/plat-samsung/include/plat/regs-serial.h
index 720734847027..29c26a818842 100644
--- a/arch/arm/plat-samsung/include/plat/regs-serial.h
+++ b/arch/arm/plat-samsung/include/plat/regs-serial.h
@@ -71,6 +71,7 @@
#define S3C2410_LCON_IRM (1<<6)
#define S3C2440_UCON_CLKMASK (3<<10)
+#define S3C2440_UCON_CLKSHIFT (10)
#define S3C2440_UCON_PCLK (0<<10)
#define S3C2440_UCON_UCLK (1<<10)
#define S3C2440_UCON_PCLK2 (2<<10)
@@ -78,6 +79,7 @@
#define S3C2443_UCON_EPLL (3<<10)
#define S3C6400_UCON_CLKMASK (3<<10)
+#define S3C6400_UCON_CLKSHIFT (10)
#define S3C6400_UCON_PCLK (0<<10)
#define S3C6400_UCON_PCLK2 (2<<10)
#define S3C6400_UCON_UCLK0 (1<<10)
@@ -90,11 +92,14 @@
#define S3C2440_UCON_DIVSHIFT (12)
#define S3C2412_UCON_CLKMASK (3<<10)
+#define S3C2412_UCON_CLKSHIFT (10)
#define S3C2412_UCON_UCLK (1<<10)
#define S3C2412_UCON_USYSCLK (3<<10)
#define S3C2412_UCON_PCLK (0<<10)
#define S3C2412_UCON_PCLK2 (2<<10)
+#define S3C2410_UCON_CLKMASK (1 << 10)
+#define S3C2410_UCON_CLKSHIFT (10)
#define S3C2410_UCON_UCLK (1<<10)
#define S3C2410_UCON_SBREAK (1<<4)
@@ -193,6 +198,7 @@
/* Following are specific to S5PV210 */
#define S5PV210_UCON_CLKMASK (1<<10)
+#define S5PV210_UCON_CLKSHIFT (10)
#define S5PV210_UCON_PCLK (0<<10)
#define S5PV210_UCON_UCLK (1<<10)
@@ -221,29 +227,24 @@
#define S5PV210_UFSTAT_RXMASK (255<<0)
#define S5PV210_UFSTAT_RXSHIFT (0)
-#define NO_NEED_CHECK_CLKSRC 1
+#define S3C2410_UCON_CLKSEL0 (1 << 0)
+#define S3C2410_UCON_CLKSEL1 (1 << 1)
+#define S3C2410_UCON_CLKSEL2 (1 << 2)
+#define S3C2410_UCON_CLKSEL3 (1 << 3)
-#ifndef __ASSEMBLY__
+/* Default values for s5pv210 UCON and UFCON uart registers */
+#define S5PV210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
+ S3C2410_UCON_RXILEVEL | \
+ S3C2410_UCON_TXIRQMODE | \
+ S3C2410_UCON_RXIRQMODE | \
+ S3C2410_UCON_RXFIFO_TOI | \
+ S3C2443_UCON_RXERR_IRQEN)
-/* struct s3c24xx_uart_clksrc
- *
- * this structure defines a named clock source that can be used for the
- * uart, so that the best clock can be selected for the requested baud
- * rate.
- *
- * min_baud and max_baud define the range of baud-rates this clock is
- * acceptable for, if they are both zero, it is assumed any baud rate that
- * can be generated from this clock will be used.
- *
- * divisor gives the divisor from the clock to the one seen by the uart
-*/
+#define S5PV210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
+ S5PV210_UFCON_TXTRIG4 | \
+ S5PV210_UFCON_RXTRIG4)
-struct s3c24xx_uart_clksrc {
- const char *name;
- unsigned int divisor;
- unsigned int min_baud;
- unsigned int max_baud;
-};
+#ifndef __ASSEMBLY__
/* configuration structure for per-machine configurations for the
* serial port
@@ -257,15 +258,13 @@ struct s3c2410_uartcfg {
unsigned char unused;
unsigned short flags;
upf_t uart_flags; /* default uart flags */
+ unsigned int clk_sel;
unsigned int has_fracval;
unsigned long ucon; /* value of ucon for port */
unsigned long ulcon; /* value of ulcon for port */
unsigned long ufcon; /* value of ufcon for port */
-
- struct s3c24xx_uart_clksrc *clocks;
- unsigned int clocks_size;
};
/* s3c24xx_uart_devs
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