From e0d8b13ae1e3ea747620580b6f777992148de182 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Tue, 11 Nov 2008 17:52:32 +0000
Subject: [ARM] pxa: don't pass a consumer clock name for devices with unique
clocks
Where devices only have one consumer, passing a consumer clock ID
has no real benefit. Remove it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/serial/pxa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'drivers/serial')
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index abc00be5543..8ea314bc00c 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -766,7 +766,7 @@ static int serial_pxa_probe(struct platform_device *dev)
if (!sport)
return -ENOMEM;
- sport->clk = clk_get(&dev->dev, "UARTCLK");
+ sport->clk = clk_get(&dev->dev, NULL);
if (IS_ERR(sport->clk)) {
ret = PTR_ERR(sport->clk);
goto err_free;
--
cgit v1.2.3-70-g09d2
From fa44c9e21f93f90800a56bacc74baa884e155b16 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 28 Nov 2008 16:13:44 +0000
Subject: [ARM] lh7a40x: avoid polluting the kernel's namespace
Avoid unnecessarily pollution of the kernel's namespace by avoiding
mach/hardware.h in mach/io.h. Include this header file where necessary.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
arch/arm/mach-lh7a40x/include/mach/io.h | 2 --
drivers/serial/serial_lh7a40x.c | 3 ++-
2 files changed, 2 insertions(+), 3 deletions(-)
(limited to 'drivers/serial')
diff --git a/arch/arm/mach-lh7a40x/include/mach/io.h b/arch/arm/mach-lh7a40x/include/mach/io.h
index 031d26f9163..e41422db97a 100644
--- a/arch/arm/mach-lh7a40x/include/mach/io.h
+++ b/arch/arm/mach-lh7a40x/include/mach/io.h
@@ -11,8 +11,6 @@
#ifndef __ASM_ARCH_IO_H
#define __ASM_ARCH_IO_H
-#include <mach/hardware.h>
-
#define IO_SPACE_LIMIT 0xffffffff
/* No ISA or PCI bus on this machine. */
diff --git a/drivers/serial/serial_lh7a40x.c b/drivers/serial/serial_lh7a40x.c
index 61dc8b3daa2..a7bf024a828 100644
--- a/drivers/serial/serial_lh7a40x.c
+++ b/drivers/serial/serial_lh7a40x.c
@@ -41,9 +41,10 @@
#include <linux/tty_flip.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
+#include <linux/io.h>
-#include <asm/io.h>
#include <asm/irq.h>
+#include <mach/hardware.h>
#define DEV_MAJOR 204
#define DEV_MINOR 16
--
cgit v1.2.3-70-g09d2
From ee569c43e340202fb0ba427c57b77568a32b9a3a Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sun, 30 Nov 2008 17:38:14 +0000
Subject: [ARM] amba drivers: don't pass a consumer clock name for devices with
unique clocks
Where devices only have one consumer, passing a consumer clock ID
has no real benefit, and it only encourages wrong implementations of
the clk API. Remove it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/mmc/host/mmci.c | 2 +-
drivers/serial/amba-pl010.c | 2 +-
drivers/serial/amba-pl011.c | 2 +-
drivers/video/amba-clcd.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
(limited to 'drivers/serial')
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 2fadf323c69..1bcbdd6763a 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -500,7 +500,7 @@ static int mmci_probe(struct amba_device *dev, void *id)
}
host = mmc_priv(mmc);
- host->clk = clk_get(&dev->dev, "MCLK");
+ host->clk = clk_get(&dev->dev, NULL);
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
host->clk = NULL;
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 71562689116..e3a5ad5ef1d 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -692,7 +692,7 @@ static int pl010_probe(struct amba_device *dev, void *id)
goto free;
}
- uap->clk = clk_get(&dev->dev, "UARTCLK");
+ uap->clk = clk_get(&dev->dev, NULL);
if (IS_ERR(uap->clk)) {
ret = PTR_ERR(uap->clk);
goto unmap;
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index b7180046f8d..8b2b9700f3e 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -756,7 +756,7 @@ static int pl011_probe(struct amba_device *dev, void *id)
goto free;
}
- uap->clk = clk_get(&dev->dev, "UARTCLK");
+ uap->clk = clk_get(&dev->dev, NULL);
if (IS_ERR(uap->clk)) {
ret = PTR_ERR(uap->clk);
goto unmap;
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index a7a1c891bfa..c818174b40d 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -343,7 +343,7 @@ static int clcdfb_register(struct clcd_fb *fb)
{
int ret;
- fb->clk = clk_get(&fb->dev->dev, "CLCDCLK");
+ fb->clk = clk_get(&fb->dev->dev, NULL);
if (IS_ERR(fb->clk)) {
ret = PTR_ERR(fb->clk);
goto out;
--
cgit v1.2.3-70-g09d2
From 02f652626a8f23e513877cb751c8ea533739c28f Mon Sep 17 00:00:00 2001
From: Eric Miao <eric.miao@marvell.com>
Date: Fri, 28 Nov 2008 14:08:53 +0800
Subject: [ARM] pxa: move UART register definitions into dedicated regs-uart.h
Signed-off-by: Eric Miao <eric.miao@marvell.com>
---
arch/arm/mach-pxa/devices.c | 16 ++--
arch/arm/mach-pxa/include/mach/pxa-regs.h | 141 ---------------------------
arch/arm/mach-pxa/include/mach/regs-uart.h | 143 ++++++++++++++++++++++++++++
arch/arm/mach-pxa/include/mach/uncompress.h | 2 +-
drivers/net/irda/pxaficp_ir.c | 1 +
drivers/serial/pxa.c | 1 +
6 files changed, 154 insertions(+), 150 deletions(-)
create mode 100644 arch/arm/mach-pxa/include/mach/regs-uart.h
(limited to 'drivers/serial')
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 541940b5d79..4db44925897 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -156,8 +156,8 @@ void __init set_pxa_fb_parent(struct device *parent_dev)
static struct resource pxa_resource_ffuart[] = {
{
- .start = __PREG(FFUART),
- .end = __PREG(FFUART) + 35,
+ .start = 0x40100000,
+ .end = 0x40100023,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_FFUART,
@@ -175,8 +175,8 @@ struct platform_device pxa_device_ffuart= {
static struct resource pxa_resource_btuart[] = {
{
- .start = __PREG(BTUART),
- .end = __PREG(BTUART) + 35,
+ .start = 0x40200000,
+ .end = 0x40200023,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_BTUART,
@@ -194,8 +194,8 @@ struct platform_device pxa_device_btuart = {
static struct resource pxa_resource_stuart[] = {
{
- .start = __PREG(STUART),
- .end = __PREG(STUART) + 35,
+ .start = 0x40700000,
+ .end = 0x40700023,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_STUART,
@@ -213,8 +213,8 @@ struct platform_device pxa_device_stuart = {
static struct resource pxa_resource_hwuart[] = {
{
- .start = __PREG(HWUART),
- .end = __PREG(HWUART) + 47,
+ .start = 0x41600000,
+ .end = 0x4160002F,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_HWUART,
diff --git a/arch/arm/mach-pxa/include/mach/pxa-regs.h b/arch/arm/mach-pxa/include/mach/pxa-regs.h
index ab62f6c11e0..cb9b46de97c 100644
--- a/arch/arm/mach-pxa/include/mach/pxa-regs.h
+++ b/arch/arm/mach-pxa/include/mach/pxa-regs.h
@@ -123,147 +123,6 @@
#define DCMD_WIDTH4 (3 << 14) /* 4 byte width (Word) */
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
-
-/*
- * UARTs
- */
-
-/* Full Function UART (FFUART) */
-#define FFUART FFRBR
-#define FFRBR __REG(0x40100000) /* Receive Buffer Register (read only) */
-#define FFTHR __REG(0x40100000) /* Transmit Holding Register (write only) */
-#define FFIER __REG(0x40100004) /* Interrupt Enable Register (read/write) */
-#define FFIIR __REG(0x40100008) /* Interrupt ID Register (read only) */
-#define FFFCR __REG(0x40100008) /* FIFO Control Register (write only) */
-#define FFLCR __REG(0x4010000C) /* Line Control Register (read/write) */
-#define FFMCR __REG(0x40100010) /* Modem Control Register (read/write) */
-#define FFLSR __REG(0x40100014) /* Line Status Register (read only) */
-#define FFMSR __REG(0x40100018) /* Modem Status Register (read only) */
-#define FFSPR __REG(0x4010001C) /* Scratch Pad Register (read/write) */
-#define FFISR __REG(0x40100020) /* Infrared Selection Register (read/write) */
-#define FFDLL __REG(0x40100000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
-#define FFDLH __REG(0x40100004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
-
-/* Bluetooth UART (BTUART) */
-#define BTUART BTRBR
-#define BTRBR __REG(0x40200000) /* Receive Buffer Register (read only) */
-#define BTTHR __REG(0x40200000) /* Transmit Holding Register (write only) */
-#define BTIER __REG(0x40200004) /* Interrupt Enable Register (read/write) */
-#define BTIIR __REG(0x40200008) /* Interrupt ID Register (read only) */
-#define BTFCR __REG(0x40200008) /* FIFO Control Register (write only) */
-#define BTLCR __REG(0x4020000C) /* Line Control Register (read/write) */
-#define BTMCR __REG(0x40200010) /* Modem Control Register (read/write) */
-#define BTLSR __REG(0x40200014) /* Line Status Register (read only) */
-#define BTMSR __REG(0x40200018) /* Modem Status Register (read only) */
-#define BTSPR __REG(0x4020001C) /* Scratch Pad Register (read/write) */
-#define BTISR __REG(0x40200020) /* Infrared Selection Register (read/write) */
-#define BTDLL __REG(0x40200000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
-#define BTDLH __REG(0x40200004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
-
-/* Standard UART (STUART) */
-#define STUART STRBR
-#define STRBR __REG(0x40700000) /* Receive Buffer Register (read only) */
-#define STTHR __REG(0x40700000) /* Transmit Holding Register (write only) */
-#define STIER __REG(0x40700004) /* Interrupt Enable Register (read/write) */
-#define STIIR __REG(0x40700008) /* Interrupt ID Register (read only) */
-#define STFCR __REG(0x40700008) /* FIFO Control Register (write only) */
-#define STLCR __REG(0x4070000C) /* Line Control Register (read/write) */
-#define STMCR __REG(0x40700010) /* Modem Control Register (read/write) */
-#define STLSR __REG(0x40700014) /* Line Status Register (read only) */
-#define STMSR __REG(0x40700018) /* Reserved */
-#define STSPR __REG(0x4070001C) /* Scratch Pad Register (read/write) */
-#define STISR __REG(0x40700020) /* Infrared Selection Register (read/write) */
-#define STDLL __REG(0x40700000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
-#define STDLH __REG(0x40700004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
-
-/* Hardware UART (HWUART) */
-#define HWUART HWRBR
-#define HWRBR __REG(0x41600000) /* Receive Buffer Register (read only) */
-#define HWTHR __REG(0x41600000) /* Transmit Holding Register (write only) */
-#define HWIER __REG(0x41600004) /* Interrupt Enable Register (read/write) */
-#define HWIIR __REG(0x41600008) /* Interrupt ID Register (read only) */
-#define HWFCR __REG(0x41600008) /* FIFO Control Register (write only) */
-#define HWLCR __REG(0x4160000C) /* Line Control Register (read/write) */
-#define HWMCR __REG(0x41600010) /* Modem Control Register (read/write) */
-#define HWLSR __REG(0x41600014) /* Line Status Register (read only) */
-#define HWMSR __REG(0x41600018) /* Modem Status Register (read only) */
-#define HWSPR __REG(0x4160001C) /* Scratch Pad Register (read/write) */
-#define HWISR __REG(0x41600020) /* Infrared Selection Register (read/write) */
-#define HWFOR __REG(0x41600024) /* Receive FIFO Occupancy Register (read only) */
-#define HWABR __REG(0x41600028) /* Auto-Baud Control Register (read/write) */
-#define HWACR __REG(0x4160002C) /* Auto-Baud Count Register (read only) */
-#define HWDLL __REG(0x41600000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
-#define HWDLH __REG(0x41600004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
-
-#define IER_DMAE (1 << 7) /* DMA Requests Enable */
-#define IER_UUE (1 << 6) /* UART Unit Enable */
-#define IER_NRZE (1 << 5) /* NRZ coding Enable */
-#define IER_RTIOE (1 << 4) /* Receiver Time Out Interrupt Enable */
-#define IER_MIE (1 << 3) /* Modem Interrupt Enable */
-#define IER_RLSE (1 << 2) /* Receiver Line Status Interrupt Enable */
-#define IER_TIE (1 << 1) /* Transmit Data request Interrupt Enable */
-#define IER_RAVIE (1 << 0) /* Receiver Data Available Interrupt Enable */
-
-#define IIR_FIFOES1 (1 << 7) /* FIFO Mode Enable Status */
-#define IIR_FIFOES0 (1 << 6) /* FIFO Mode Enable Status */
-#define IIR_TOD (1 << 3) /* Time Out Detected */
-#define IIR_IID2 (1 << 2) /* Interrupt Source Encoded */
-#define IIR_IID1 (1 << 1) /* Interrupt Source Encoded */
-#define IIR_IP (1 << 0) /* Interrupt Pending (active low) */
-
-#define FCR_ITL2 (1 << 7) /* Interrupt Trigger Level */
-#define FCR_ITL1 (1 << 6) /* Interrupt Trigger Level */
-#define FCR_RESETTF (1 << 2) /* Reset Transmitter FIFO */
-#define FCR_RESETRF (1 << 1) /* Reset Receiver FIFO */
-#define FCR_TRFIFOE (1 << 0) /* Transmit and Receive FIFO Enable */
-#define FCR_ITL_1 (0)
-#define FCR_ITL_8 (FCR_ITL1)
-#define FCR_ITL_16 (FCR_ITL2)
-#define FCR_ITL_32 (FCR_ITL2|FCR_ITL1)
-
-#define LCR_DLAB (1 << 7) /* Divisor Latch Access Bit */
-#define LCR_SB (1 << 6) /* Set Break */
-#define LCR_STKYP (1 << 5) /* Sticky Parity */
-#define LCR_EPS (1 << 4) /* Even Parity Select */
-#define LCR_PEN (1 << 3) /* Parity Enable */
-#define LCR_STB (1 << 2) /* Stop Bit */
-#define LCR_WLS1 (1 << 1) /* Word Length Select */
-#define LCR_WLS0 (1 << 0) /* Word Length Select */
-
-#define LSR_FIFOE (1 << 7) /* FIFO Error Status */
-#define LSR_TEMT (1 << 6) /* Transmitter Empty */
-#define LSR_TDRQ (1 << 5) /* Transmit Data Request */
-#define LSR_BI (1 << 4) /* Break Interrupt */
-#define LSR_FE (1 << 3) /* Framing Error */
-#define LSR_PE (1 << 2) /* Parity Error */
-#define LSR_OE (1 << 1) /* Overrun Error */
-#define LSR_DR (1 << 0) /* Data Ready */
-
-#define MCR_LOOP (1 << 4)
-#define MCR_OUT2 (1 << 3) /* force MSR_DCD in loopback mode */
-#define MCR_OUT1 (1 << 2) /* force MSR_RI in loopback mode */
-#define MCR_RTS (1 << 1) /* Request to Send */
-#define MCR_DTR (1 << 0) /* Data Terminal Ready */
-
-#define MSR_DCD (1 << 7) /* Data Carrier Detect */
-#define MSR_RI (1 << 6) /* Ring Indicator */
-#define MSR_DSR (1 << 5) /* Data Set Ready */
-#define MSR_CTS (1 << 4) /* Clear To Send */
-#define MSR_DDCD (1 << 3) /* Delta Data Carrier Detect */
-#define MSR_TERI (1 << 2) /* Trailing Edge Ring Indicator */
-#define MSR_DDSR (1 << 1) /* Delta Data Set Ready */
-#define MSR_DCTS (1 << 0) /* Delta Clear To Send */
-
-/*
- * IrSR (Infrared Selection Register)
- */
-#define STISR_RXPL (1 << 4) /* Receive Data Polarity */
-#define STISR_TXPL (1 << 3) /* Transmit Data Polarity */
-#define STISR_XMODE (1 << 2) /* Transmit Pulse Width Select */
-#define STISR_RCVEIR (1 << 1) /* Receiver SIR Enable */
-#define STISR_XMITIR (1 << 0) /* Transmitter SIR Enable */
-
-
/*
* I2C registers - moved into drivers/i2c/busses/i2c-pxa.c
*/
diff --git a/arch/arm/mach-pxa/include/mach/regs-uart.h b/arch/arm/mach-pxa/include/mach/regs-uart.h
new file mode 100644
index 00000000000..55aeb7fb72f
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/regs-uart.h
@@ -0,0 +1,143 @@
+#ifndef __ASM_ARCH_REGS_UART_H
+#define __ASM_ARCH_REGS_UART_H
+
+/*
+ * UARTs
+ */
+
+/* Full Function UART (FFUART) */
+#define FFUART FFRBR
+#define FFRBR __REG(0x40100000) /* Receive Buffer Register (read only) */
+#define FFTHR __REG(0x40100000) /* Transmit Holding Register (write only) */
+#define FFIER __REG(0x40100004) /* Interrupt Enable Register (read/write) */
+#define FFIIR __REG(0x40100008) /* Interrupt ID Register (read only) */
+#define FFFCR __REG(0x40100008) /* FIFO Control Register (write only) */
+#define FFLCR __REG(0x4010000C) /* Line Control Register (read/write) */
+#define FFMCR __REG(0x40100010) /* Modem Control Register (read/write) */
+#define FFLSR __REG(0x40100014) /* Line Status Register (read only) */
+#define FFMSR __REG(0x40100018) /* Modem Status Register (read only) */
+#define FFSPR __REG(0x4010001C) /* Scratch Pad Register (read/write) */
+#define FFISR __REG(0x40100020) /* Infrared Selection Register (read/write) */
+#define FFDLL __REG(0x40100000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
+#define FFDLH __REG(0x40100004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
+
+/* Bluetooth UART (BTUART) */
+#define BTUART BTRBR
+#define BTRBR __REG(0x40200000) /* Receive Buffer Register (read only) */
+#define BTTHR __REG(0x40200000) /* Transmit Holding Register (write only) */
+#define BTIER __REG(0x40200004) /* Interrupt Enable Register (read/write) */
+#define BTIIR __REG(0x40200008) /* Interrupt ID Register (read only) */
+#define BTFCR __REG(0x40200008) /* FIFO Control Register (write only) */
+#define BTLCR __REG(0x4020000C) /* Line Control Register (read/write) */
+#define BTMCR __REG(0x40200010) /* Modem Control Register (read/write) */
+#define BTLSR __REG(0x40200014) /* Line Status Register (read only) */
+#define BTMSR __REG(0x40200018) /* Modem Status Register (read only) */
+#define BTSPR __REG(0x4020001C) /* Scratch Pad Register (read/write) */
+#define BTISR __REG(0x40200020) /* Infrared Selection Register (read/write) */
+#define BTDLL __REG(0x40200000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
+#define BTDLH __REG(0x40200004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
+
+/* Standard UART (STUART) */
+#define STUART STRBR
+#define STRBR __REG(0x40700000) /* Receive Buffer Register (read only) */
+#define STTHR __REG(0x40700000) /* Transmit Holding Register (write only) */
+#define STIER __REG(0x40700004) /* Interrupt Enable Register (read/write) */
+#define STIIR __REG(0x40700008) /* Interrupt ID Register (read only) */
+#define STFCR __REG(0x40700008) /* FIFO Control Register (write only) */
+#define STLCR __REG(0x4070000C) /* Line Control Register (read/write) */
+#define STMCR __REG(0x40700010) /* Modem Control Register (read/write) */
+#define STLSR __REG(0x40700014) /* Line Status Register (read only) */
+#define STMSR __REG(0x40700018) /* Reserved */
+#define STSPR __REG(0x4070001C) /* Scratch Pad Register (read/write) */
+#define STISR __REG(0x40700020) /* Infrared Selection Register (read/write) */
+#define STDLL __REG(0x40700000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
+#define STDLH __REG(0x40700004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
+
+/* Hardware UART (HWUART) */
+#define HWUART HWRBR
+#define HWRBR __REG(0x41600000) /* Receive Buffer Register (read only) */
+#define HWTHR __REG(0x41600000) /* Transmit Holding Register (write only) */
+#define HWIER __REG(0x41600004) /* Interrupt Enable Register (read/write) */
+#define HWIIR __REG(0x41600008) /* Interrupt ID Register (read only) */
+#define HWFCR __REG(0x41600008) /* FIFO Control Register (write only) */
+#define HWLCR __REG(0x4160000C) /* Line Control Register (read/write) */
+#define HWMCR __REG(0x41600010) /* Modem Control Register (read/write) */
+#define HWLSR __REG(0x41600014) /* Line Status Register (read only) */
+#define HWMSR __REG(0x41600018) /* Modem Status Register (read only) */
+#define HWSPR __REG(0x4160001C) /* Scratch Pad Register (read/write) */
+#define HWISR __REG(0x41600020) /* Infrared Selection Register (read/write) */
+#define HWFOR __REG(0x41600024) /* Receive FIFO Occupancy Register (read only) */
+#define HWABR __REG(0x41600028) /* Auto-Baud Control Register (read/write) */
+#define HWACR __REG(0x4160002C) /* Auto-Baud Count Register (read only) */
+#define HWDLL __REG(0x41600000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */
+#define HWDLH __REG(0x41600004) /* Divisor Latch High Register (DLAB = 1) (read/write) */
+
+#define IER_DMAE (1 << 7) /* DMA Requests Enable */
+#define IER_UUE (1 << 6) /* UART Unit Enable */
+#define IER_NRZE (1 << 5) /* NRZ coding Enable */
+#define IER_RTIOE (1 << 4) /* Receiver Time Out Interrupt Enable */
+#define IER_MIE (1 << 3) /* Modem Interrupt Enable */
+#define IER_RLSE (1 << 2) /* Receiver Line Status Interrupt Enable */
+#define IER_TIE (1 << 1) /* Transmit Data request Interrupt Enable */
+#define IER_RAVIE (1 << 0) /* Receiver Data Available Interrupt Enable */
+
+#define IIR_FIFOES1 (1 << 7) /* FIFO Mode Enable Status */
+#define IIR_FIFOES0 (1 << 6) /* FIFO Mode Enable Status */
+#define IIR_TOD (1 << 3) /* Time Out Detected */
+#define IIR_IID2 (1 << 2) /* Interrupt Source Encoded */
+#define IIR_IID1 (1 << 1) /* Interrupt Source Encoded */
+#define IIR_IP (1 << 0) /* Interrupt Pending (active low) */
+
+#define FCR_ITL2 (1 << 7) /* Interrupt Trigger Level */
+#define FCR_ITL1 (1 << 6) /* Interrupt Trigger Level */
+#define FCR_RESETTF (1 << 2) /* Reset Transmitter FIFO */
+#define FCR_RESETRF (1 << 1) /* Reset Receiver FIFO */
+#define FCR_TRFIFOE (1 << 0) /* Transmit and Receive FIFO Enable */
+#define FCR_ITL_1 (0)
+#define FCR_ITL_8 (FCR_ITL1)
+#define FCR_ITL_16 (FCR_ITL2)
+#define FCR_ITL_32 (FCR_ITL2|FCR_ITL1)
+
+#define LCR_DLAB (1 << 7) /* Divisor Latch Access Bit */
+#define LCR_SB (1 << 6) /* Set Break */
+#define LCR_STKYP (1 << 5) /* Sticky Parity */
+#define LCR_EPS (1 << 4) /* Even Parity Select */
+#define LCR_PEN (1 << 3) /* Parity Enable */
+#define LCR_STB (1 << 2) /* Stop Bit */
+#define LCR_WLS1 (1 << 1) /* Word Length Select */
+#define LCR_WLS0 (1 << 0) /* Word Length Select */
+
+#define LSR_FIFOE (1 << 7) /* FIFO Error Status */
+#define LSR_TEMT (1 << 6) /* Transmitter Empty */
+#define LSR_TDRQ (1 << 5) /* Transmit Data Request */
+#define LSR_BI (1 << 4) /* Break Interrupt */
+#define LSR_FE (1 << 3) /* Framing Error */
+#define LSR_PE (1 << 2) /* Parity Error */
+#define LSR_OE (1 << 1) /* Overrun Error */
+#define LSR_DR (1 << 0) /* Data Ready */
+
+#define MCR_LOOP (1 << 4)
+#define MCR_OUT2 (1 << 3) /* force MSR_DCD in loopback mode */
+#define MCR_OUT1 (1 << 2) /* force MSR_RI in loopback mode */
+#define MCR_RTS (1 << 1) /* Request to Send */
+#define MCR_DTR (1 << 0) /* Data Terminal Ready */
+
+#define MSR_DCD (1 << 7) /* Data Carrier Detect */
+#define MSR_RI (1 << 6) /* Ring Indicator */
+#define MSR_DSR (1 << 5) /* Data Set Ready */
+#define MSR_CTS (1 << 4) /* Clear To Send */
+#define MSR_DDCD (1 << 3) /* Delta Data Carrier Detect */
+#define MSR_TERI (1 << 2) /* Trailing Edge Ring Indicator */
+#define MSR_DDSR (1 << 1) /* Delta Data Set Ready */
+#define MSR_DCTS (1 << 0) /* Delta Clear To Send */
+
+/*
+ * IrSR (Infrared Selection Register)
+ */
+#define STISR_RXPL (1 << 4) /* Receive Data Polarity */
+#define STISR_TXPL (1 << 3) /* Transmit Data Polarity */
+#define STISR_XMODE (1 << 2) /* Transmit Pulse Width Select */
+#define STISR_RCVEIR (1 << 1) /* Receiver SIR Enable */
+#define STISR_XMITIR (1 << 0) /* Transmitter SIR Enable */
+
+#endif /* __ASM_ARCH_REGS_UART_H */
diff --git a/arch/arm/mach-pxa/include/mach/uncompress.h b/arch/arm/mach-pxa/include/mach/uncompress.h
index 21e3e890af9..a9a4f302b6e 100644
--- a/arch/arm/mach-pxa/include/mach/uncompress.h
+++ b/arch/arm/mach-pxa/include/mach/uncompress.h
@@ -10,7 +10,7 @@
*/
#include <linux/serial_reg.h>
-#include <mach/pxa-regs.h>
+#include <mach/regs-uart.h>
#include <asm/mach-types.h>
#define __REG(x) ((volatile unsigned long *)x)
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index 06f448a37ca..ba445133f3e 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -25,6 +25,7 @@
#include <asm/dma.h>
#include <mach/irda.h>
#include <mach/pxa-regs.h>
+#include <mach/regs-uart.h>
#define FICP __REG(0x40800000) /* Start of FICP area */
#define ICCR0 __REG(0x40800000) /* ICP Control Register 0 */
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index abc00be5543..a793d1fa1cd 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -48,6 +48,7 @@
#include <mach/hardware.h>
#include <asm/irq.h>
#include <mach/pxa-regs.h>
+#include <mach/regs-uart.h>
struct uart_pxa_port {
--
cgit v1.2.3-70-g09d2
From 305554768011707f33f437b96f999f812ba2a7e4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Tue, 21 Oct 2008 14:06:36 +0100
Subject: [ARM] CPUFREQ: S3C24XX serial CPU frequency scaling support.
Add support for CPU frequency scalling to the S3C24XX serial
driver.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
drivers/serial/samsung.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++
drivers/serial/samsung.h | 6 +++
2 files changed, 102 insertions(+)
(limited to 'drivers/serial')
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index 1e219d3d035..ebeda832c8a 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -42,6 +42,7 @@
#include <linux/serial.h>
#include <linux/delay.h>
#include <linux/clk.h>
+#include <linux/cpufreq.h>
#include <asm/irq.h>
@@ -452,6 +453,8 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
{
struct s3c24xx_uart_port *ourport = to_ourport(port);
+ ourport->pm_level = level;
+
switch (level) {
case 3:
if (!IS_ERR(ourport->baudclk) && ourport->baudclk != NULL)
@@ -661,6 +664,7 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
ourport->clksrc = clksrc;
ourport->baudclk = clk;
+ ourport->baudclk_rate = clk ? clk_get_rate(clk) : 0;
}
switch (termios->c_cflag & CSIZE) {
@@ -890,6 +894,93 @@ static inline int s3c24xx_serial_resetport(struct uart_port *port,
return (info->reset_port)(port, cfg);
}
+
+#ifdef CONFIG_CPU_FREQ
+
+static int s3c24xx_serial_cpufreq_transition(struct notifier_block *nb,
+ unsigned long val, void *data)
+{
+ struct s3c24xx_uart_port *port;
+ struct uart_port *uport;
+
+ port = container_of(nb, struct s3c24xx_uart_port, freq_transition);
+ uport = &port->port;
+
+ /* check to see if port is enabled */
+
+ if (port->pm_level != 0)
+ return 0;
+
+ /* try and work out if the baudrate is changing, we can detect
+ * a change in rate, but we do not have support for detecting
+ * a disturbance in the clock-rate over the change.
+ */
+
+ if (IS_ERR(port->clk))
+ goto exit;
+
+ if (port->baudclk_rate == clk_get_rate(port->clk))
+ goto exit;
+
+ if (val == CPUFREQ_PRECHANGE) {
+ /* we should really shut the port down whilst the
+ * frequency change is in progress. */
+
+ } else if (val == CPUFREQ_POSTCHANGE) {
+ struct ktermios *termios;
+ struct tty_struct *tty;
+
+ if (uport->info == NULL) {
+ printk(KERN_WARNING "%s: info NULL\n", __func__);
+ goto exit;
+ }
+
+ tty = uport->info->port.tty;
+
+ if (tty == NULL) {
+ printk(KERN_WARNING "%s: tty is NULL\n", __func__);
+ goto exit;
+ }
+
+ termios = tty->termios;
+
+ if (termios == NULL) {
+ printk(KERN_WARNING "%s: no termios?\n", __func__);
+ goto exit;
+ }
+
+ s3c24xx_serial_set_termios(uport, termios, NULL);
+ }
+
+ exit:
+ return 0;
+}
+
+static inline int s3c24xx_serial_cpufreq_register(struct s3c24xx_uart_port *port)
+{
+ port->freq_transition.notifier_call = s3c24xx_serial_cpufreq_transition;
+
+ return cpufreq_register_notifier(&port->freq_transition,
+ CPUFREQ_TRANSITION_NOTIFIER);
+}
+
+static inline void s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *port)
+{
+ cpufreq_unregister_notifier(&port->freq_transition,
+ CPUFREQ_TRANSITION_NOTIFIER);
+}
+
+#else
+static inline int s3c24xx_serial_cpufreq_register(struct s3c24xx_uart_port *port)
+{
+ return 0;
+}
+
+static inline void s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *port)
+{
+}
+#endif
+
/* s3c24xx_serial_init_port
*
* initialise a single serial port from the platform device given
@@ -1002,6 +1093,10 @@ int s3c24xx_serial_probe(struct platform_device *dev,
if (ret < 0)
printk(KERN_ERR "%s: failed to add clksrc attr.\n", __func__);
+ ret = s3c24xx_serial_cpufreq_register(ourport);
+ if (ret < 0)
+ dev_err(&dev->dev, "failed to add cpufreq notifier\n");
+
return 0;
probe_err:
@@ -1015,6 +1110,7 @@ int s3c24xx_serial_remove(struct platform_device *dev)
struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
if (port) {
+ s3c24xx_serial_cpufreq_deregister(to_ourport(port));
device_remove_file(&dev->dev, &dev_attr_clock_source);
uart_remove_one_port(&s3c24xx_uart_drv, port);
}
diff --git a/drivers/serial/samsung.h b/drivers/serial/samsung.h
index 5c92ebbe7d9..be263423205 100644
--- a/drivers/serial/samsung.h
+++ b/drivers/serial/samsung.h
@@ -33,12 +33,18 @@ struct s3c24xx_uart_info {
struct s3c24xx_uart_port {
unsigned char rx_claimed;
unsigned char tx_claimed;
+ unsigned int pm_level;
+ unsigned long baudclk_rate;
struct s3c24xx_uart_info *info;
struct s3c24xx_uart_clksrc *clksrc;
struct clk *clk;
struct clk *baudclk;
struct uart_port port;
+
+#ifdef CONFIG_CPU_FREQ
+ struct notifier_block freq_transition;
+#endif
};
/* conversion functions */
--
cgit v1.2.3-70-g09d2
From 1d4bab082474d539f900e896880aa2135e0f5393 Mon Sep 17 00:00:00 2001
From: Sandeep Patil <sandeep.patil@azingo.com>
Date: Tue, 21 Oct 2008 14:06:30 +0100
Subject: [ARM] S3C24A0: Serial port definitions and driver support.
Add serial support for S3C24A0, based on current S3C2410
UART driver. It adds necessary new defines in regs-serial.h
for S3C24A0 and the code to support this device in
drivers/serial/s3c24a0.c
Signed-off-by: Sandeep Patil <sandeep.patil@azingo.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
arch/arm/plat-s3c/include/plat/regs-serial.h | 8 ++
drivers/serial/Kconfig | 7 +-
drivers/serial/Makefile | 1 +
drivers/serial/s3c24a0.c | 118 +++++++++++++++++++++++++++
drivers/serial/samsung.c | 2 +-
5 files changed, 134 insertions(+), 2 deletions(-)
create mode 100644 drivers/serial/s3c24a0.c
(limited to 'drivers/serial')
diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h
index a0daa647b92..18ba31c7174 100644
--- a/arch/arm/plat-s3c/include/plat/regs-serial.h
+++ b/arch/arm/plat-s3c/include/plat/regs-serial.h
@@ -149,6 +149,14 @@
#define S3C2410_UFSTAT_RXMASK (15<<0)
#define S3C2410_UFSTAT_RXSHIFT (0)
+/* UFSTAT S3C24A0 */
+#define S3C24A0_UFSTAT_TXFULL (1 << 14)
+#define S3C24A0_UFSTAT_RXFULL (1 << 6)
+#define S3C24A0_UFSTAT_TXMASK (63 << 8)
+#define S3C24A0_UFSTAT_TXSHIFT (8)
+#define S3C24A0_UFSTAT_RXMASK (63)
+#define S3C24A0_UFSTAT_RXSHIFT (0)
+
/* UFSTAT S3C2443 same as S3C2440 */
#define S3C2440_UFSTAT_TXFULL (1<<14)
#define S3C2440_UFSTAT_RXFULL (1<<6)
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 579d63a81aa..f71a2e8a5f6 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -508,7 +508,12 @@ config SERIAL_S3C2440
help
Serial port support for the Samsung S3C2440 and S3C2442 SoC
-
+config SERIAL_S3C24A0
+ tristate "Samsung S3C24A0 Serial port support"
+ depends on SERIAL_SAMSUNG && CPU_S3C24A0
+ default y if CPU_S3C24A0
+ help
+ Serial port support for the Samsung S3C24A0 SoC
config SERIAL_DZ
bool "DECstation DZ serial driver"
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 0c17c8ddb19..7769aece54c 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_SERIAL_S3C2400) += s3c2400.o
obj-$(CONFIG_SERIAL_S3C2410) += s3c2410.o
obj-$(CONFIG_SERIAL_S3C2412) += s3c2412.o
obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o
+obj-$(CONFIG_SERIAL_S3C24A0) += s3c24a0.o
obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
obj-$(CONFIG_SERIAL_MUX) += mux.o
obj-$(CONFIG_SERIAL_68328) += 68328serial.o
diff --git a/drivers/serial/s3c24a0.c b/drivers/serial/s3c24a0.c
new file mode 100644
index 00000000000..ebf2fd3c8f7
--- /dev/null
+++ b/drivers/serial/s3c24a0.c
@@ -0,0 +1,118 @@
+/* linux/drivers/serial/s3c24a0.c
+ *
+ * Driver for Samsung S3C24A0 SoC onboard UARTs.
+ *
+ * Based on drivers/serial/s3c2410.c
+ *
+ * Author: Sandeep Patil <sandeep.patil@azingo.com>
+ *
+ * Ben Dooks, Copyright (c) 2003-2005,2008 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#include <mach/hardware.h>
+
+#include <plat/regs-serial.h>
+#include <mach/regs-gpio.h>
+
+#include "samsung.h"
+
+static int s3c24a0_serial_setsource(struct uart_port *port,
+ struct s3c24xx_uart_clksrc *clk)
+{
+ unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+ if (strcmp(clk->name, "uclk") == 0)
+ ucon |= S3C2410_UCON_UCLK;
+ else
+ ucon &= ~S3C2410_UCON_UCLK;
+
+ wr_regl(port, S3C2410_UCON, ucon);
+ return 0;
+}
+
+static int s3c24a0_serial_getsource(struct uart_port *port,
+ struct s3c24xx_uart_clksrc *clk)
+{
+ unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+ clk->divisor = 1;
+ clk->name = (ucon & S3C2410_UCON_UCLK) ? "uclk" : "pclk";
+
+ return 0;
+}
+
+static int s3c24a0_serial_resetport(struct uart_port *port,
+ struct s3c2410_uartcfg *cfg)
+{
+ dbg("s3c24a0_serial_resetport: port=%p (%08lx), cfg=%p\n",
+ port, port->mapbase, cfg);
+
+ wr_regl(port, S3C2410_UCON, cfg->ucon);
+ wr_regl(port, S3C2410_ULCON, cfg->ulcon);
+
+ /* reset both fifos */
+
+ wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
+ wr_regl(port, S3C2410_UFCON, cfg->ufcon);
+
+ return 0;
+}
+
+static struct s3c24xx_uart_info s3c24a0_uart_inf = {
+ .name = "Samsung S3C24A0 UART",
+ .type = PORT_S3C2410,
+ .fifosize = 16,
+ .rx_fifomask = S3C24A0_UFSTAT_RXMASK,
+ .rx_fifoshift = S3C24A0_UFSTAT_RXSHIFT,
+ .rx_fifofull = S3C24A0_UFSTAT_RXFULL,
+ .tx_fifofull = S3C24A0_UFSTAT_TXFULL,
+ .tx_fifomask = S3C24A0_UFSTAT_TXMASK,
+ .tx_fifoshift = S3C24A0_UFSTAT_TXSHIFT,
+ .get_clksrc = s3c24a0_serial_getsource,
+ .set_clksrc = s3c24a0_serial_setsource,
+ .reset_port = s3c24a0_serial_resetport,
+};
+
+static int s3c24a0_serial_probe(struct platform_device *dev)
+{
+ return s3c24xx_serial_probe(dev, &s3c24a0_uart_inf);
+}
+
+static struct platform_driver s3c24a0_serial_drv = {
+ .probe = s3c24a0_serial_probe,
+ .remove = s3c24xx_serial_remove,
+ .driver = {
+ .name = "s3c24a0-uart",
+ .owner = THIS_MODULE,
+ },
+};
+
+s3c24xx_console_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf);
+
+static int __init s3c24a0_serial_init(void)
+{
+ return s3c24xx_serial_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf);
+}
+
+static void __exit s3c24a0_serial_exit(void)
+{
+ platform_driver_unregister(&s3c24a0_serial_drv);
+}
+
+module_init(s3c24a0_serial_init);
+module_exit(s3c24a0_serial_exit);
+
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index ebeda832c8a..bb8b57aae3a 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -61,7 +61,7 @@
/* we can support 3 uarts, but not always use them */
-#ifdef CONFIG_CPU_S3C2400
+#if defined(CONFIG_CPU_S3C2400) || defined(CONFIG_CPU_S3C24A0)
#define NR_PORTS (2)
#else
#define NR_PORTS (3)
--
cgit v1.2.3-70-g09d2
From b690ace50be7d10d77cb7a6d5ef1bd9de649852f Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Tue, 21 Oct 2008 14:07:03 +0100
Subject: [ARM] S3C6400: serial support for S3C6400 and S3C6410 SoCs
Add support to the Samsung serial driver for the S3C6400
and S3C6410 serial ports.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
arch/arm/mach-s3c2410/include/mach/map.h | 2 +
arch/arm/mach-s3c24a0/include/mach/map.h | 2 +
arch/arm/plat-s3c/include/plat/regs-serial.h | 6 ++
drivers/serial/Kconfig | 10 +-
drivers/serial/Makefile | 1 +
drivers/serial/s3c6400.c | 151 +++++++++++++++++++++++++++
drivers/serial/samsung.c | 8 +-
include/linux/serial_core.h | 2 +
8 files changed, 178 insertions(+), 4 deletions(-)
create mode 100644 drivers/serial/s3c6400.c
(limited to 'drivers/serial')
diff --git a/arch/arm/mach-s3c2410/include/mach/map.h b/arch/arm/mach-s3c2410/include/mach/map.h
index 6b30361a080..918e3463297 100644
--- a/arch/arm/mach-s3c2410/include/mach/map.h
+++ b/arch/arm/mach-s3c2410/include/mach/map.h
@@ -101,4 +101,6 @@
#define S3C24XX_PA_SDI S3C2410_PA_SDI
#define S3C24XX_PA_NAND S3C2410_PA_NAND
+#define S3C_PA_UART S3C24XX_PA_UART
+
#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s3c24a0/include/mach/map.h b/arch/arm/mach-s3c24a0/include/mach/map.h
index 2ce1839de4e..6667355a47a 100644
--- a/arch/arm/mach-s3c24a0/include/mach/map.h
+++ b/arch/arm/mach-s3c24a0/include/mach/map.h
@@ -80,4 +80,6 @@
#define S3C24XX_PA_SDI S3C24A0_PA_SDI
#define S3C24XX_PA_NAND S3C24A0_PA_NAND
+#define S3C_PA_UART S3C24A0_PA_UART
+
#endif /* __ASM_ARCH_24A0_MAP_H */
diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h
index 18ba31c7174..3ca28585cf8 100644
--- a/arch/arm/plat-s3c/include/plat/regs-serial.h
+++ b/arch/arm/plat-s3c/include/plat/regs-serial.h
@@ -77,6 +77,12 @@
#define S3C2440_UCON_FCLK (3<<10)
#define S3C2443_UCON_EPLL (3<<10)
+#define S3C6400_UCON_CLKMASK (3<<10)
+#define S3C6400_UCON_PCLK (0<<10)
+#define S3C6400_UCON_PCLK2 (2<<10)
+#define S3C6400_UCON_UCLK0 (1<<10)
+#define S3C6400_UCON_UCLK1 (3<<10)
+
#define S3C2440_UCON2_FCLK_EN (1<<15)
#define S3C2440_UCON0_DIVMASK (15 << 12)
#define S3C2440_UCON1_DIVMASK (15 << 12)
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index f71a2e8a5f6..e4ae499e587 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -447,7 +447,7 @@ config SERIAL_CLPS711X_CONSOLE
config SERIAL_SAMSUNG
tristate "Samsung SoC serial support"
- depends on ARM && PLAT_S3C24XX
+ depends on ARM && PLAT_S3C
select SERIAL_CORE
help
Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
@@ -515,6 +515,14 @@ config SERIAL_S3C24A0
help
Serial port support for the Samsung S3C24A0 SoC
+config SERIAL_S3C6400
+ tristate "Samsung S3C6400/S3C6410 Serial port support"
+ depends on SERIAL_SAMSUNG && (CPU_S3C600 || CPU_S3C6410)
+ default y
+ help
+ Serial port support for the Samsung S3C6400 and S3C6410
+ SoCs
+
config SERIAL_DZ
bool "DECstation DZ serial driver"
depends on MACH_DECSTATION && 32BIT
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 7769aece54c..dfe775ac45b 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_SERIAL_S3C2410) += s3c2410.o
obj-$(CONFIG_SERIAL_S3C2412) += s3c2412.o
obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o
obj-$(CONFIG_SERIAL_S3C24A0) += s3c24a0.o
+obj-$(CONFIG_SERIAL_S3C6400) += s3c6400.o
obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
obj-$(CONFIG_SERIAL_MUX) += mux.o
obj-$(CONFIG_SERIAL_68328) += 68328serial.o
diff --git a/drivers/serial/s3c6400.c b/drivers/serial/s3c6400.c
new file mode 100644
index 00000000000..06936d13393
--- /dev/null
+++ b/drivers/serial/s3c6400.c
@@ -0,0 +1,151 @@
+/* linux/drivers/serial/s3c6400.c
+ *
+ * Driver for Samsung S3C6400 and S3C6410 SoC onboard UARTs.
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+
+#include <asm/irq.h>
+#include <mach/hardware.h>
+
+#include <plat/regs-serial.h>
+
+#include "samsung.h"
+
+static int s3c6400_serial_setsource(struct uart_port *port,
+ struct s3c24xx_uart_clksrc *clk)
+{
+ unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+ if (strcmp(clk->name, "uclk0") == 0) {
+ ucon &= ~S3C6400_UCON_CLKMASK;
+ ucon |= S3C6400_UCON_UCLK0;
+ } else if (strcmp(clk->name, "uclk1") == 0)
+ ucon |= S3C6400_UCON_UCLK1;
+ else if (strcmp(clk->name, "pclk") == 0) {
+ /* See notes about transitioning from UCLK to PCLK */
+ ucon &= ~S3C6400_UCON_UCLK0;
+ } else {
+ printk(KERN_ERR "unknown clock source %s\n", clk->name);
+ return -EINVAL;
+ }
+
+ wr_regl(port, S3C2410_UCON, ucon);
+ return 0;
+}
+
+
+static int s3c6400_serial_getsource(struct uart_port *port,
+ struct s3c24xx_uart_clksrc *clk)
+{
+ u32 ucon = rd_regl(port, S3C2410_UCON);
+
+ clk->divisor = 1;
+
+ switch (ucon & S3C6400_UCON_CLKMASK) {
+ case S3C6400_UCON_UCLK0:
+ clk->name = "uclk0";
+ break;
+
+ case S3C6400_UCON_UCLK1:
+ clk->name = "uclk1";
+ break;
+
+ case S3C6400_UCON_PCLK:
+ case S3C6400_UCON_PCLK2:
+ clk->name = "pclk";
+ break;
+ }
+
+ return 0;
+}
+
+static int s3c6400_serial_resetport(struct uart_port *port,
+ struct s3c2410_uartcfg *cfg)
+{
+ unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+ dbg("s3c6400_serial_resetport: port=%p (%08lx), cfg=%p\n",
+ port, port->mapbase, cfg);
+
+ /* ensure we don't change the clock settings... */
+
+ ucon &= S3C6400_UCON_CLKMASK;
+
+ wr_regl(port, S3C2410_UCON, ucon | cfg->ucon);
+ wr_regl(port, S3C2410_ULCON, cfg->ulcon);
+
+ /* reset both fifos */
+
+ wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
+ wr_regl(port, S3C2410_UFCON, cfg->ufcon);
+
+ return 0;
+}
+
+static struct s3c24xx_uart_info s3c6400_uart_inf = {
+ .name = "Samsung S3C6400 UART",
+ .type = PORT_S3C6400,
+ .fifosize = 64,
+ .rx_fifomask = S3C2440_UFSTAT_RXMASK,
+ .rx_fifoshift = S3C2440_UFSTAT_RXSHIFT,
+ .rx_fifofull = S3C2440_UFSTAT_RXFULL,
+ .tx_fifofull = S3C2440_UFSTAT_TXFULL,
+ .tx_fifomask = S3C2440_UFSTAT_TXMASK,
+ .tx_fifoshift = S3C2440_UFSTAT_TXSHIFT,
+ .get_clksrc = s3c6400_serial_getsource,
+ .set_clksrc = s3c6400_serial_setsource,
+ .reset_port = s3c6400_serial_resetport,
+};
+
+/* device management */
+
+static int s3c6400_serial_probe(struct platform_device *dev)
+{
+ dbg("s3c6400_serial_probe: dev=%p\n", dev);
+ return s3c24xx_serial_probe(dev, &s3c6400_uart_inf);
+}
+
+static struct platform_driver s3c6400_serial_drv = {
+ .probe = s3c6400_serial_probe,
+ .remove = s3c24xx_serial_remove,
+ .driver = {
+ .name = "s3c6400-uart",
+ .owner = THIS_MODULE,
+ },
+};
+
+s3c24xx_console_init(&s3c6400_serial_drv, &s3c6400_uart_inf);
+
+static int __init s3c6400_serial_init(void)
+{
+ return s3c24xx_serial_init(&s3c6400_serial_drv, &s3c6400_uart_inf);
+}
+
+static void __exit s3c6400_serial_exit(void)
+{
+ platform_driver_unregister(&s3c6400_serial_drv);
+}
+
+module_init(s3c6400_serial_init);
+module_exit(s3c6400_serial_exit);
+
+MODULE_DESCRIPTION("Samsung S3C6400,S3C6410 SoC Serial port driver");
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:s3c6400-uart");
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index bb8b57aae3a..44fc38afa22 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -47,9 +47,9 @@
#include <asm/irq.h>
#include <mach/hardware.h>
+#include <mach/map.h>
#include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
#include "samsung.h"
@@ -756,6 +756,8 @@ static const char *s3c24xx_serial_type(struct uart_port *port)
return "S3C2440";
case PORT_S3C2412:
return "S3C2412";
+ case PORT_S3C6400:
+ return "S3C6400/10";
default:
return NULL;
}
@@ -1034,8 +1036,8 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
dbg("resource %p (%lx..%lx)\n", res, res->start, res->end);
- port->mapbase = res->start;
- port->membase = S3C24XX_VA_UART + (res->start - S3C24XX_PA_UART);
+ port->mapbase = res->start;
+ port->membase = S3C_VA_UART + res->start - (S3C_PA_UART & 0xfff00000);
ret = platform_get_irq(platdev, 0);
if (ret < 0)
port->irq = 0;
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 4e4f1277f3b..feb3b939ec4 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -158,6 +158,8 @@
/* SH-SCI */
#define PORT_SCIFA 83
+#define PORT_S3C6400 84
+
#ifdef __KERNEL__
#include <linux/compiler.h>
--
cgit v1.2.3-70-g09d2
From b73c289cc90138e9f78d487434df0f8eeb2daf9b Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Tue, 21 Oct 2008 14:07:04 +0100
Subject: [ARM] S3C: Update serial driver IRQ handling
The S3C64XX code changes the order of the serial
interrupts, so change the registration process to
pickup the extra IRQ resources.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
drivers/serial/samsung.c | 45 ++++++++++++++++++++++++++-------------------
drivers/serial/samsung.h | 3 +++
2 files changed, 29 insertions(+), 19 deletions(-)
(limited to 'drivers/serial')
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index 44fc38afa22..ba2e8685f9f 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -67,11 +67,6 @@
#define NR_PORTS (3)
#endif
-/* port irq numbers */
-
-#define TX_IRQ(port) ((port)->irq + 1)
-#define RX_IRQ(port) ((port)->irq)
-
/* macros to change one thing to another */
#define tx_enabled(port) ((port)->unused[0])
@@ -137,8 +132,10 @@ static void s3c24xx_serial_rx_disable(struct uart_port *port)
static void s3c24xx_serial_stop_tx(struct uart_port *port)
{
+ struct s3c24xx_uart_port *ourport = to_ourport(port);
+
if (tx_enabled(port)) {
- disable_irq(TX_IRQ(port));
+ disable_irq(ourport->tx_irq);
tx_enabled(port) = 0;
if (port->flags & UPF_CONS_FLOW)
s3c24xx_serial_rx_enable(port);
@@ -147,11 +144,13 @@ static void s3c24xx_serial_stop_tx(struct uart_port *port)
static void s3c24xx_serial_start_tx(struct uart_port *port)
{
+ struct s3c24xx_uart_port *ourport = to_ourport(port);
+
if (!tx_enabled(port)) {
if (port->flags & UPF_CONS_FLOW)
s3c24xx_serial_rx_disable(port);
- enable_irq(TX_IRQ(port));
+ enable_irq(ourport->tx_irq);
tx_enabled(port) = 1;
}
}
@@ -159,9 +158,11 @@ static void s3c24xx_serial_start_tx(struct uart_port *port)
static void s3c24xx_serial_stop_rx(struct uart_port *port)
{
+ struct s3c24xx_uart_port *ourport = to_ourport(port);
+
if (rx_enabled(port)) {
dbg("s3c24xx_serial_stop_rx: port=%p\n", port);
- disable_irq(RX_IRQ(port));
+ disable_irq(ourport->rx_irq);
rx_enabled(port) = 0;
}
}
@@ -385,13 +386,13 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
struct s3c24xx_uart_port *ourport = to_ourport(port);
if (ourport->tx_claimed) {
- free_irq(TX_IRQ(port), ourport);
+ free_irq(ourport->tx_irq, ourport);
tx_enabled(port) = 0;
ourport->tx_claimed = 0;
}
if (ourport->rx_claimed) {
- free_irq(RX_IRQ(port), ourport);
+ free_irq(ourport->rx_irq, ourport);
ourport->rx_claimed = 0;
rx_enabled(port) = 0;
}
@@ -408,12 +409,11 @@ static int s3c24xx_serial_startup(struct uart_port *port)
rx_enabled(port) = 1;
- ret = request_irq(RX_IRQ(port),
- s3c24xx_serial_rx_chars, 0,
+ ret = request_irq(ourport->rx_irq, s3c24xx_serial_rx_chars, 0,
s3c24xx_serial_portname(port), ourport);
if (ret != 0) {
- printk(KERN_ERR "cannot get irq %d\n", RX_IRQ(port));
+ printk(KERN_ERR "cannot get irq %d\n", ourport->rx_irq);
return ret;
}
@@ -423,12 +423,11 @@ static int s3c24xx_serial_startup(struct uart_port *port)
tx_enabled(port) = 1;
- ret = request_irq(TX_IRQ(port),
- s3c24xx_serial_tx_chars, 0,
+ ret = request_irq(ourport->tx_irq, s3c24xx_serial_tx_chars, 0,
s3c24xx_serial_portname(port), ourport);
if (ret) {
- printk(KERN_ERR "cannot get irq %d\n", TX_IRQ(port));
+ printk(KERN_ERR "cannot get irq %d\n", ourport->tx_irq);
goto err;
}
@@ -1041,13 +1040,21 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
ret = platform_get_irq(platdev, 0);
if (ret < 0)
port->irq = 0;
- else
+ else {
port->irq = ret;
+ ourport->rx_irq = ret;
+ ourport->tx_irq = ret + 1;
+ }
+
+ ret = platform_get_irq(platdev, 1);
+ if (ret > 0)
+ ourport->tx_irq = ret;
ourport->clk = clk_get(&platdev->dev, "uart");
- dbg("port: map=%08x, mem=%08x, irq=%d, clock=%ld\n",
- port->mapbase, port->membase, port->irq, port->uartclk);
+ dbg("port: map=%08x, mem=%08x, irq=%d (%d,%d), clock=%ld\n",
+ port->mapbase, port->membase, port->irq,
+ ourport->rx_irq, ourport->tx_irq, port->uartclk);
/* reset the fifos (and setup the uart) */
s3c24xx_serial_resetport(port, cfg);
diff --git a/drivers/serial/samsung.h b/drivers/serial/samsung.h
index be263423205..571d6b90d20 100644
--- a/drivers/serial/samsung.h
+++ b/drivers/serial/samsung.h
@@ -36,6 +36,9 @@ struct s3c24xx_uart_port {
unsigned int pm_level;
unsigned long baudclk_rate;
+ unsigned int rx_irq;
+ unsigned int tx_irq;
+
struct s3c24xx_uart_info *info;
struct s3c24xx_uart_clksrc *clksrc;
struct clk *clk;
--
cgit v1.2.3-70-g09d2
From bd006a9bfedadf1ed1af0393852d1e0101c39901 Mon Sep 17 00:00:00 2001
From: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Date: Fri, 14 Nov 2008 11:01:39 +0100
Subject: patch-mx1-UART-support
Adds support for MX1 architecture to UART driver.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/serial/imx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'drivers/serial')
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 3f90f1bbbbc..73dea88cceb 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -66,7 +66,7 @@
#define ONEMS 0xb0 /* One Millisecond register */
#define UTS 0xb4 /* UART Test Register */
#endif
-#ifdef CONFIG_ARCH_IMX
+#if defined(CONFIG_ARCH_IMX) || defined(CONFIG_ARCH_MX1)
#define BIPR1 0xb0 /* Incremental Preset Register 1 */
#define BIPR2 0xb4 /* Incremental Preset Register 2 */
#define BIPR3 0xb8 /* Incremental Preset Register 3 */
@@ -96,7 +96,7 @@
#define UCR1_RTSDEN (1<<5) /* RTS delta interrupt enable */
#define UCR1_SNDBRK (1<<4) /* Send break */
#define UCR1_TDMAEN (1<<3) /* Transmitter ready DMA enable */
-#ifdef CONFIG_ARCH_IMX
+#if defined(CONFIG_ARCH_IMX) || defined(CONFIG_ARCH_MX1)
#define UCR1_UARTCLKEN (1<<2) /* UART clock enabled */
#endif
#if defined CONFIG_ARCH_MX3 || defined CONFIG_ARCH_MX2
@@ -187,7 +187,7 @@
#define MAX_INTERNAL_IRQ IMX_IRQS
#endif
-#if defined CONFIG_ARCH_MX3 || defined CONFIG_ARCH_MX2
+#ifdef CONFIG_ARCH_MXC
#define SERIAL_IMX_MAJOR 207
#define MINOR_START 16
#define DEV_NAME "ttymxc"
--
cgit v1.2.3-70-g09d2
From 9d631b835f518848b7f3ce803bfd00dc1bb8a5b1 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 18 Dec 2008 11:08:55 +0100
Subject: [ARM] MXC: remove dependency to other include files from irqs.h
This patch removes the inclusion of mach/hardware.h from mach/irqs.h and
switches to more meaningful names for the irq related macros.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-mx1/devices.c | 8 ++++----
arch/arm/mach-mx2/devices.c | 12 ++++++------
arch/arm/mach-mx3/devices.c | 6 +++---
arch/arm/plat-mxc/include/mach/board-mx27ads.h | 2 +-
arch/arm/plat-mxc/include/mach/board-mx31ads.h | 2 +-
arch/arm/plat-mxc/include/mach/gpio.h | 4 ++--
arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h | 4 ++--
arch/arm/plat-mxc/include/mach/iomux-mx3.h | 2 +-
arch/arm/plat-mxc/include/mach/irqs.h | 27 +++++++++++++++++++++++++-
arch/arm/plat-mxc/include/mach/mx1.h | 4 ----
arch/arm/plat-mxc/include/mach/mx27.h | 6 ------
arch/arm/plat-mxc/include/mach/mx31.h | 17 ----------------
arch/arm/plat-mxc/irq.c | 8 ++++----
drivers/serial/imx.c | 2 +-
14 files changed, 51 insertions(+), 53 deletions(-)
(limited to 'drivers/serial')
diff --git a/arch/arm/mach-mx1/devices.c b/arch/arm/mach-mx1/devices.c
index ad4679b9087..686d8d2dbb2 100644
--- a/arch/arm/mach-mx1/devices.c
+++ b/arch/arm/mach-mx1/devices.c
@@ -232,25 +232,25 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
.chip.label = "gpio-0",
.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR),
.irq = GPIO_INT_PORTA,
- .virtual_irq_start = MXC_MAX_INT_LINES
+ .virtual_irq_start = MXC_GPIO_IRQ_START
},
[1] = {
.chip.label = "gpio-1",
.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x100),
.irq = GPIO_INT_PORTB,
- .virtual_irq_start = MXC_MAX_INT_LINES + 32
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 32
},
[2] = {
.chip.label = "gpio-2",
.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x200),
.irq = GPIO_INT_PORTC,
- .virtual_irq_start = MXC_MAX_INT_LINES + 64
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 64
},
[3] = {
.chip.label = "gpio-3",
.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x300),
.irq = GPIO_INT_PORTD,
- .virtual_irq_start = MXC_MAX_INT_LINES + 96
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 96
}
};
diff --git a/arch/arm/mach-mx2/devices.c b/arch/arm/mach-mx2/devices.c
index 0bad8652774..af121f5ab71 100644
--- a/arch/arm/mach-mx2/devices.c
+++ b/arch/arm/mach-mx2/devices.c
@@ -230,32 +230,32 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
.chip.label = "gpio-0",
.irq = MXC_INT_GPIO,
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 0),
- .virtual_irq_start = MXC_MAX_INT_LINES,
+ .virtual_irq_start = MXC_GPIO_IRQ_START,
},
[1] = {
.chip.label = "gpio-1",
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 1),
- .virtual_irq_start = MXC_MAX_INT_LINES + 32,
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 32,
},
[2] = {
.chip.label = "gpio-2",
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 2),
- .virtual_irq_start = MXC_MAX_INT_LINES + 64,
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 64,
},
[3] = {
.chip.label = "gpio-3",
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 3),
- .virtual_irq_start = MXC_MAX_INT_LINES + 96,
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 96,
},
[4] = {
.chip.label = "gpio-4",
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 4),
- .virtual_irq_start = MXC_MAX_INT_LINES + 128,
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 128,
},
[5] = {
.chip.label = "gpio-5",
.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 5),
- .virtual_irq_start = MXC_MAX_INT_LINES + 160,
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 160,
}
};
diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index 3e61ff4646f..1d46cb4adf9 100644
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -125,19 +125,19 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
.chip.label = "gpio-0",
.base = IO_ADDRESS(GPIO1_BASE_ADDR),
.irq = MXC_INT_GPIO1,
- .virtual_irq_start = MXC_GPIO_INT_BASE
+ .virtual_irq_start = MXC_GPIO_IRQ_START,
},
[1] = {
.chip.label = "gpio-1",
.base = IO_ADDRESS(GPIO2_BASE_ADDR),
.irq = MXC_INT_GPIO2,
- .virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 32,
},
[2] = {
.chip.label = "gpio-2",
.base = IO_ADDRESS(GPIO3_BASE_ADDR),
.irq = MXC_INT_GPIO3,
- .virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN * 2
+ .virtual_irq_start = MXC_GPIO_IRQ_START + 64,
}
};
diff --git a/arch/arm/plat-mxc/include/mach/board-mx27ads.h b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
index 0c748a8e157..8f34a05afc8 100644
--- a/arch/arm/plat-mxc/include/mach/board-mx27ads.h
+++ b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
@@ -15,7 +15,7 @@
#define __ASM_ARCH_MXC_BOARD_MX27ADS_H__
/* external interrupt multiplexer */
-#define MXC_EXP_IO_BASE (MXC_GPIO_BASE + MXC_MAX_GPIO_LINES)
+#define MXC_EXP_IO_BASE (MXC_BOARD_IRQ_START)
#define MXC_VIRTUAL_INTS_BASE (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES)
#define MXC_SDIO1_CARD_IRQ MXC_VIRTUAL_INTS_BASE
diff --git a/arch/arm/plat-mxc/include/mach/board-mx31ads.h b/arch/arm/plat-mxc/include/mach/board-mx31ads.h
index 745b48864f9..451d510d08c 100644
--- a/arch/arm/plat-mxc/include/mach/board-mx31ads.h
+++ b/arch/arm/plat-mxc/include/mach/board-mx31ads.h
@@ -90,7 +90,7 @@
#define PBC_INTMASK_CLEAR_REG (PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
#define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_4)
-#define MXC_EXP_IO_BASE (MXC_MAX_INT_LINES + MXC_MAX_GPIO_LINES)
+#define MXC_EXP_IO_BASE (MXC_BOARD_IRQ_START)
#define MXC_IRQ_TO_EXPIO(irq) ((irq) - MXC_EXP_IO_BASE)
#define EXPIO_INT_LOW_BAT (MXC_EXP_IO_BASE + 0)
diff --git a/arch/arm/plat-mxc/include/mach/gpio.h b/arch/arm/plat-mxc/include/mach/gpio.h
index 65eedc0d196..ea509f1090f 100644
--- a/arch/arm/plat-mxc/include/mach/gpio.h
+++ b/arch/arm/plat-mxc/include/mach/gpio.h
@@ -27,8 +27,8 @@
#define gpio_set_value __gpio_set_value
#define gpio_cansleep __gpio_cansleep
-#define gpio_to_irq(gpio) (MXC_MAX_INT_LINES + (gpio))
-#define irq_to_gpio(irq) ((irq) - MXC_MAX_INT_LINES)
+#define gpio_to_irq(gpio) (MXC_GPIO_IRQ_START + (gpio))
+#define irq_to_gpio(irq) ((irq) - MXC_GPIO_IRQ_START)
struct mxc_gpio_port {
void __iomem *base;
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h b/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
index 60b3c9b6ef7..95a383be628 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
@@ -405,9 +405,9 @@ extern void mxc_gpio_release_multiple_pins(const int *pin_list, int count);
#endif
/* decode irq number to use with IMR(x), ISR(x) and friends */
-#define IRQ_TO_REG(irq) ((irq - MXC_MAX_INT_LINES) >> 5)
+#define IRQ_TO_REG(irq) ((irq - MXC_INTERNAL_IRQS) >> 5)
-#define IRQ_GPIOA(x) (MXC_MAX_INT_LINES + x)
+#define IRQ_GPIOA(x) (MXC_GPIO_IRQ_START + x)
#define IRQ_GPIOB(x) (IRQ_GPIOA(32) + x)
#define IRQ_GPIOC(x) (IRQ_GPIOB(32) + x)
#define IRQ_GPIOD(x) (IRQ_GPIOC(32) + x)
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx3.h b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
index 20e5c4c6331..c9198c0aea1 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx3.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
@@ -141,7 +141,7 @@ void mxc_iomux_set_gpr(enum iomux_gp_func, bool);
((iomux_pin & IOMUX_GPIONUM_MASK) >> IOMUX_GPIONUM_SHIFT)
#define IOMUX_TO_IRQ(iomux_pin) \
(((iomux_pin & IOMUX_GPIONUM_MASK) >> IOMUX_GPIONUM_SHIFT) + \
- MXC_GPIO_INT_BASE)
+ MXC_GPIO_IRQ_START)
/*
* This enumeration is constructed based on the Section
diff --git a/arch/arm/plat-mxc/include/mach/irqs.h b/arch/arm/plat-mxc/include/mach/irqs.h
index b8ac91608a4..e06d3cb0ee1 100644
--- a/arch/arm/plat-mxc/include/mach/irqs.h
+++ b/arch/arm/plat-mxc/include/mach/irqs.h
@@ -11,7 +11,32 @@
#ifndef __ASM_ARCH_MXC_IRQS_H__
#define __ASM_ARCH_MXC_IRQS_H__
-#include <mach/hardware.h>
+/*
+ * So far all i.MX SoCs have 64 internal interrupts
+ */
+#define MXC_INTERNAL_IRQS 64
+
+#define MXC_GPIO_IRQ_START MXC_INTERNAL_IRQS
+
+#if defined CONFIG_ARCH_MX1
+#define MXC_GPIO_IRQS (32 * 4)
+#elif defined CONFIG_ARCH_MX2
+#define MXC_GPIO_IRQS (32 * 6)
+#elif defined CONFIG_ARCH_MX3
+#define MXC_GPIO_IRQS (32 * 3)
+#endif
+
+/*
+ * The next 16 interrupts are for board specific purposes. Since
+ * the kernel can only run on one machine at a time, we can re-use
+ * these. If you need more, increase MXC_BOARD_IRQS, but keep it
+ * within sensible limits.
+ */
+#define MXC_BOARD_IRQ_START (MXC_INTERNAL_IRQS + MXC_GPIO_IRQS)
+#define MXC_BOARD_IRQS 16
+
+#define NR_IRQS (MXC_BOARD_IRQ_START + MXC_BOARD_IRQS)
+
extern void imx_irq_set_priority(unsigned char irq, unsigned char prio);
/* all normal IRQs can be FIQs */
diff --git a/arch/arm/plat-mxc/include/mach/mx1.h b/arch/arm/plat-mxc/include/mach/mx1.h
index e7f6d00009a..c45bf5f5b90 100644
--- a/arch/arm/plat-mxc/include/mach/mx1.h
+++ b/arch/arm/plat-mxc/include/mach/mx1.h
@@ -145,10 +145,6 @@
#define GPIO_INT_PORTD 62
#define WDT_INT 63
-#define MXC_MAX_INT_LINES 64
-
-#define NR_IRQS 256
-
/* gpio and gpio based interrupt handling */
#define GPIO_DR 0x1C
#define GPIO_GDIR 0x00
diff --git a/arch/arm/plat-mxc/include/mach/mx27.h b/arch/arm/plat-mxc/include/mach/mx27.h
index aade46d90e7..55bcbd5e073 100644
--- a/arch/arm/plat-mxc/include/mach/mx27.h
+++ b/arch/arm/plat-mxc/include/mach/mx27.h
@@ -295,10 +295,4 @@ extern int mx27_revision(void);
/* Start of RAM */
#define PHYS_OFFSET SDRAM_BASE_ADDR
-/* max interrupt lines count */
-#define NR_IRQS 256
-
-/* count of internal interrupt sources */
-#define MXC_MAX_INT_LINES 64
-
#endif /* __ASM_ARCH_MXC_MX27_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx31.h b/arch/arm/plat-mxc/include/mach/mx31.h
index 0536f8917bc..65c3109b519 100644
--- a/arch/arm/plat-mxc/include/mach/mx31.h
+++ b/arch/arm/plat-mxc/include/mach/mx31.h
@@ -315,23 +315,6 @@
#define MXC_INT_EXT_WDOG 62
#define MXC_INT_EXT_TV 63
-#define MXC_MAX_INT_LINES 64
-
-#define MXC_GPIO_INT_BASE MXC_MAX_INT_LINES
-#define MXC_MAX_GPIO_LINES (GPIO_NUM_PIN * GPIO_PORT_NUM)
-#define MXC_MAX_VIRTUAL_INTS 16
-
-#define NR_IRQS (MXC_MAX_INT_LINES + MXC_MAX_GPIO_LINES + MXC_MAX_VIRTUAL_INTS)
-
-/*!
- * Number of GPIO port as defined in the IC Spec
- */
-#define GPIO_PORT_NUM 3
-/*!
- * Number of GPIO pins per port
- */
-#define GPIO_NUM_PIN 32
-
#define PROD_SIGNATURE 0x1 /* For MX31 */
/* silicon revisions specific to i.MX31 */
diff --git a/arch/arm/plat-mxc/irq.c b/arch/arm/plat-mxc/irq.c
index e937c8759a9..06862654a89 100644
--- a/arch/arm/plat-mxc/irq.c
+++ b/arch/arm/plat-mxc/irq.c
@@ -72,14 +72,14 @@ int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
{
unsigned int irqt;
- if (irq >= MXC_MAX_INT_LINES)
+ if (irq >= MXC_INTERNAL_IRQS)
return -EINVAL;
- if (irq < MXC_MAX_INT_LINES / 2) {
+ if (irq < MXC_INTERNAL_IRQS / 2) {
irqt = __raw_readl(AVIC_INTTYPEL) & ~(1 << irq);
__raw_writel(irqt | (!!type << irq), AVIC_INTTYPEL);
} else {
- irq -= MXC_MAX_INT_LINES / 2;
+ irq -= MXC_INTERNAL_IRQS / 2;
irqt = __raw_readl(AVIC_INTTYPEH) & ~(1 << irq);
__raw_writel(irqt | (!!type << irq), AVIC_INTTYPEH);
}
@@ -129,7 +129,7 @@ void __init mxc_init_irq(void)
/* all IRQ no FIQ */
__raw_writel(0, AVIC_INTTYPEH);
__raw_writel(0, AVIC_INTTYPEL);
- for (i = 0; i < MXC_MAX_INT_LINES; i++) {
+ for (i = 0; i < MXC_INTERNAL_IRQS; i++) {
set_irq_chip(i, &mxc_avic_chip);
set_irq_handler(i, handle_level_irq);
set_irq_flags(i, IRQF_VALID);
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 73dea88cceb..a50954612b6 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -191,7 +191,7 @@
#define SERIAL_IMX_MAJOR 207
#define MINOR_START 16
#define DEV_NAME "ttymxc"
-#define MAX_INTERNAL_IRQ MXC_MAX_INT_LINES
+#define MAX_INTERNAL_IRQ MXC_INTERNAL_IRQS
#endif
/*
--
cgit v1.2.3-70-g09d2
From 03d5e77bb6538d3f253e04ddf0dda9b848552589 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 3 Nov 2008 09:21:23 +0000
Subject: [ARM] S3C: Update number of serial ports
Update the serial driver to handle the 4 ports of the
S3C2443 and S364XX series.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
drivers/serial/Kconfig | 10 ++++++++++
drivers/serial/samsung.c | 30 ++++++++++++++++++------------
2 files changed, 28 insertions(+), 12 deletions(-)
(limited to 'drivers/serial')
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index e4ae499e587..b695ab3142d 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -455,6 +455,16 @@ config SERIAL_SAMSUNG
provide all of these ports, depending on how the serial port
pins are configured.
+config SERIAL_SAMSUNG_UARTS
+ int
+ depends on SERIAL_SAMSUNG
+ default 2 if ARCH_S3C2400
+ default 4 if ARCH_S3C64XX || CPU_S3C2443
+ default 3
+ help
+ Select the number of available UART ports for the Samsung S3C
+ serial driver
+
config SERIAL_SAMSUNG_DEBUG
bool "Samsung SoC serial debug"
depends on SERIAL_SAMSUNG && DEBUG_LL
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index ba2e8685f9f..ec873af2610 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -59,14 +59,6 @@
#define S3C24XX_SERIAL_MAJOR 204
#define S3C24XX_SERIAL_MINOR 64
-/* we can support 3 uarts, but not always use them */
-
-#if defined(CONFIG_CPU_S3C2400) || defined(CONFIG_CPU_S3C24A0)
-#define NR_PORTS (2)
-#else
-#define NR_PORTS (3)
-#endif
-
/* macros to change one thing to another */
#define tx_enabled(port) ((port)->unused[0])
@@ -839,7 +831,7 @@ static struct uart_driver s3c24xx_uart_drv = {
.minor = S3C24XX_SERIAL_MINOR,
};
-static struct s3c24xx_uart_port s3c24xx_serial_ports[NR_PORTS] = {
+static struct s3c24xx_uart_port s3c24xx_serial_ports[CONFIG_SERIAL_SAMSUNG_UARTS] = {
[0] = {
.port = {
.lock = __SPIN_LOCK_UNLOCKED(s3c24xx_serial_ports[0].port.lock),
@@ -864,7 +856,7 @@ static struct s3c24xx_uart_port s3c24xx_serial_ports[NR_PORTS] = {
.line = 1,
}
},
-#if NR_PORTS > 2
+#if CONFIG_SERIAL_SAMSUNG_UARTS > 2
[2] = {
.port = {
@@ -877,6 +869,20 @@ static struct s3c24xx_uart_port s3c24xx_serial_ports[NR_PORTS] = {
.flags = UPF_BOOT_AUTOCONF,
.line = 2,
}
+ },
+#endif
+#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
+ [3] = {
+ .port = {
+ .lock = __SPIN_LOCK_UNLOCKED(s3c24xx_serial_ports[3].port.lock),
+ .iotype = UPIO_MEM,
+ .irq = IRQ_S3CUART_RX3,
+ .uartclk = 0,
+ .fifosize = 16,
+ .ops = &s3c24xx_serial_ops,
+ .flags = UPF_BOOT_AUTOCONF,
+ .line = 3,
+ }
}
#endif
};
@@ -1324,7 +1330,7 @@ static int s3c24xx_serial_init_ports(struct s3c24xx_uart_info *info)
platdev_ptr = s3c24xx_uart_devs;
- for (i = 0; i < NR_PORTS; i++, ptr++, platdev_ptr++) {
+ for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++, ptr++, platdev_ptr++) {
s3c24xx_serial_init_port(ptr, info, *platdev_ptr);
}
@@ -1345,7 +1351,7 @@ s3c24xx_serial_console_setup(struct console *co, char *options)
/* is this a valid port */
- if (co->index == -1 || co->index >= NR_PORTS)
+ if (co->index == -1 || co->index >= CONFIG_SERIAL_SAMSUNG_UARTS)
co->index = 0;
port = &s3c24xx_serial_ports[co->index].port;
--
cgit v1.2.3-70-g09d2
From bdd4915a9f05ef6b41b51910b199f2668f20d2ef Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 3 Nov 2008 19:51:42 +0000
Subject: [ARM] S3C: Update CONFIG_SERIAL_SAMSUNG_UARTS handling
Fix the usage of CONFIG_SERIAL_SAMSUNG_UARTS in several places
in the kernel where it had been missed. This finishes fixing a
long standing issue where S3C2443 and S3C64XX could not use the
4th UART
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
arch/arm/plat-s3c/init.c | 2 +-
drivers/serial/samsung.c | 9 ++++++---
2 files changed, 7 insertions(+), 4 deletions(-)
(limited to 'drivers/serial')
diff --git a/arch/arm/plat-s3c/init.c b/arch/arm/plat-s3c/init.c
index 85f086ee930..da8d089f6db 100644
--- a/arch/arm/plat-s3c/init.c
+++ b/arch/arm/plat-s3c/init.c
@@ -91,7 +91,7 @@ void __init s3c24xx_init_clocks(int xtal)
static int nr_uarts __initdata = 0;
-static struct s3c2410_uartcfg uart_cfgs[3];
+static struct s3c2410_uartcfg uart_cfgs[CONFIG_SERIAL_SAMSUNG_UARTS];
/* s3c24xx_init_uartdevs
*
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index ec873af2610..dc7e7ebad23 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -824,7 +824,7 @@ static struct uart_ops s3c24xx_serial_ops = {
static struct uart_driver s3c24xx_uart_drv = {
.owner = THIS_MODULE,
.dev_name = "s3c2410_serial",
- .nr = 3,
+ .nr = CONFIG_SERIAL_SAMSUNG_UARTS,
.cons = S3C24XX_SERIAL_CONSOLE,
.driver_name = S3C24XX_SERIAL_NAME,
.major = S3C24XX_SERIAL_MAJOR,
@@ -1012,8 +1012,11 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
if (port->mapbase != 0)
return 0;
- if (cfg->hwport > 3)
- return -EINVAL;
+ if (cfg->hwport > CONFIG_SERIAL_SAMSUNG_UARTS) {
+ printk(KERN_ERR "%s: port %d bigger than %d\n", __func__,
+ cfg->hwport, CONFIG_SERIAL_SAMSUNG_UARTS);
+ return -ERANGE;
+ }
/* setup info for port */
port->dev = &platdev->dev;
--
cgit v1.2.3-70-g09d2
From 7de40c216c15c02c453f17b6c9ecee83f93790f1 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 14 Dec 2008 23:11:02 +0000
Subject: [ARM] S3C: Remove cpufreq warnings for unset serial information
As noted by Russell King, do not print any warnings if the
uinfo or tty fields are not set when a CPU frequency change
is sent.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
drivers/serial/samsung.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
(limited to 'drivers/serial')
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index dc7e7ebad23..41ac94872b8 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -937,17 +937,13 @@ static int s3c24xx_serial_cpufreq_transition(struct notifier_block *nb,
struct ktermios *termios;
struct tty_struct *tty;
- if (uport->info == NULL) {
- printk(KERN_WARNING "%s: info NULL\n", __func__);
+ if (uport->info == NULL)
goto exit;
- }
tty = uport->info->port.tty;
- if (tty == NULL) {
- printk(KERN_WARNING "%s: tty is NULL\n", __func__);
+ if (tty == NULL)
goto exit;
- }
termios = tty->termios;
--
cgit v1.2.3-70-g09d2