manual merge for pm-hwmod-uart due to conflicts

5 files changed, 133 insertions, 17 deletions

diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 7d668b3b5363..947de3fb93f3 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -257,7 +257,6 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
 	omap2_set_globals_sdrc(omap2_globals);
 	omap2_set_globals_control(omap2_globals);
 	omap2_set_globals_prcm(omap2_globals);
-	omap2_set_globals_uart(omap2_globals);
 }
 
 #endif
@@ -272,9 +271,6 @@ static struct omap_globals omap242x_globals = {
 	.ctrl	= OMAP2420_CTRL_BASE,
 	.prm	= OMAP2420_PRM_BASE,
 	.cm	= OMAP2420_CM_BASE,
-	.uart1_phys	= OMAP2_UART1_BASE,
-	.uart2_phys	= OMAP2_UART2_BASE,
-	.uart3_phys	= OMAP2_UART3_BASE,
 };
 
 void __init omap2_set_globals_242x(void)
@@ -293,9 +289,6 @@ static struct omap_globals omap243x_globals = {
 	.ctrl	= OMAP243X_CTRL_BASE,
 	.prm	= OMAP2430_PRM_BASE,
 	.cm	= OMAP2430_CM_BASE,
-	.uart1_phys	= OMAP2_UART1_BASE,
-	.uart2_phys	= OMAP2_UART2_BASE,
-	.uart3_phys	= OMAP2_UART3_BASE,
 };
 
 void __init omap2_set_globals_243x(void)
@@ -314,10 +307,6 @@ static struct omap_globals omap3_globals = {
 	.ctrl	= OMAP343X_CTRL_BASE,
 	.prm	= OMAP3430_PRM_BASE,
 	.cm	= OMAP3430_CM_BASE,
-	.uart1_phys	= OMAP3_UART1_BASE,
-	.uart2_phys	= OMAP3_UART2_BASE,
-	.uart3_phys	= OMAP3_UART3_BASE,
-	.uart4_phys	= OMAP3_UART4_BASE,	/* Only on 3630 */
 };
 
 void __init omap2_set_globals_3xxx(void)
@@ -341,10 +330,6 @@ static struct omap_globals omap4_globals = {
 	.prm	= OMAP4430_PRM_BASE,
 	.cm	= OMAP4430_CM_BASE,
 	.cm2	= OMAP4430_CM2_BASE,
-	.uart1_phys	= OMAP4_UART1_BASE,
-	.uart2_phys	= OMAP4_UART2_BASE,
-	.uart3_phys	= OMAP4_UART3_BASE,
-	.uart4_phys	= OMAP4_UART4_BASE,
 };
 
 void __init omap2_set_globals_443x(void)
@@ -352,7 +337,6 @@ void __init omap2_set_globals_443x(void)
 	omap2_set_globals_tap(&omap4_globals);
 	omap2_set_globals_control(&omap4_globals);
 	omap2_set_globals_prcm(&omap4_globals);
-	omap2_set_globals_uart(&omap4_globals);
 }
 #endif
 
diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h
index 2d8f98d7ae50..a9d69a09920d 100644
--- a/arch/arm/plat-omap/include/plat/common.h
+++ b/arch/arm/plat-omap/include/plat/common.h
@@ -67,7 +67,6 @@ void omap2_set_globals_tap(struct omap_globals *);
 void omap2_set_globals_sdrc(struct omap_globals *);
 void omap2_set_globals_control(struct omap_globals *);
 void omap2_set_globals_prcm(struct omap_globals *);
-void omap2_set_globals_uart(struct omap_globals *);
 
 void omap3_map_io(void);
 
diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h
index af3a03941add..098f154f5d41 100644
--- a/arch/arm/plat-omap/include/plat/dma.h
+++ b/arch/arm/plat-omap/include/plat/dma.h
@@ -319,6 +319,8 @@
 #define OMAP34XX_DMA_USIM_TX		79	/* S_DMA_78 */
 #define OMAP34XX_DMA_USIM_RX		80	/* S_DMA_79 */
 
+#define OMAP36XX_DMA_UART4_TX		81	/* S_DMA_80 */
+#define OMAP36XX_DMA_UART4_RX		82	/* S_DMA_81 */
 /*----------------------------------------------------------------------------*/
 
 #define OMAP1_DMA_TOUT_IRQ		(1 << 0)
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index c01d9f08a198..65e20a686713 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -345,6 +345,8 @@
 #define INT_34XX_MMC3_IRQ	94
 #define INT_34XX_GPT12_IRQ	95
 
+#define INT_36XX_UART4_IRQ	80
+
 #define INT_35XX_HECC0_IRQ		24
 #define INT_35XX_HECC1_IRQ		28
 #define INT_35XX_EMAC_C0_RXTHRESH_IRQ	67
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
new file mode 100644
index 000000000000..0d6f076cf748
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -0,0 +1,129 @@
+/*
+ * Driver for OMAP-UART controller.
+ * Based on drivers/serial/8250.c
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * Authors:
+ *	Govindraj R	<govindraj.raja@ti.com>
+ *	Thara Gopinath	<thara@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __OMAP_SERIAL_H__
+#define __OMAP_SERIAL_H__
+
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <plat/control.h>
+#include <plat/mux.h>
+
+#define DRIVER_NAME	"omap-hsuart"
+
+/*
+ * Use tty device name as ttyO, [O -> OMAP]
+ * in bootargs we specify as console=ttyO0 if uart1
+ * is used as console uart.
+ */
+#define OMAP_SERIAL_NAME	"ttyO"
+
+#define OMAP_MDR1_DISABLE	0x07
+#define OMAP_MDR1_MODE13X	0x03
+#define OMAP_MDR1_MODE16X	0x00
+#define OMAP_MODE13X_SPEED	230400
+
+/*
+ * LCR = 0XBF: Switch to Configuration Mode B.
+ * In configuration mode b allow access
+ * to EFR,DLL,DLH.
+ * Reference OMAP TRM Chapter 17
+ * Section: 1.4.3 Mode Selection
+ */
+#define OMAP_UART_LCR_CONF_MDB	0XBF
+
+/* WER = 0x7F
+ * Enable module level wakeup in WER reg
+ */
+#define OMAP_UART_WER_MOD_WKUP	0X7F
+
+/* Enable XON/XOFF flow control on output */
+#define OMAP_UART_SW_TX		0x04
+
+/* Enable XON/XOFF flow control on input */
+#define OMAP_UART_SW_RX		0x04
+
+#define OMAP_UART_SYSC_RESET	0X07
+#define OMAP_UART_TCR_TRIG	0X0F
+#define OMAP_UART_SW_CLR	0XF0
+#define OMAP_UART_FIFO_CLR	0X06
+
+#define OMAP_UART_DMA_CH_FREE	-1
+
+#define RX_TIMEOUT		(3 * HZ)
+#define OMAP_MAX_HSUART_PORTS	4
+
+#define MSR_SAVE_FLAGS		UART_MSR_ANY_DELTA
+
+struct omap_uart_port_info {
+	bool			dma_enabled;	/* To specify DMA Mode */
+	unsigned int		uartclk;	/* UART clock rate */
+	void __iomem		*membase;	/* ioremap cookie or NULL */
+	resource_size_t		mapbase;	/* resource base */
+	unsigned long		irqflags;	/* request_irq flags */
+	upf_t			flags;		/* UPF_* flags */
+};
+
+struct uart_omap_dma {
+	u8			uart_dma_tx;
+	u8			uart_dma_rx;
+	int			rx_dma_channel;
+	int			tx_dma_channel;
+	dma_addr_t		rx_buf_dma_phys;
+	dma_addr_t		tx_buf_dma_phys;
+	unsigned int		uart_base;
+	/*
+	 * Buffer for rx dma.It is not required for tx because the buffer
+	 * comes from port structure.
+	 */
+	unsigned char		*rx_buf;
+	unsigned int		prev_rx_dma_pos;
+	int			tx_buf_size;
+	int			tx_dma_used;
+	int			rx_dma_used;
+	spinlock_t		tx_lock;
+	spinlock_t		rx_lock;
+	/* timer to poll activity on rx dma */
+	struct timer_list	rx_timer;
+	int			rx_buf_size;
+	int			rx_timeout;
+};
+
+struct uart_omap_port {
+	struct uart_port	port;
+	struct uart_omap_dma	uart_dma;
+	struct platform_device	*pdev;
+
+	unsigned char		ier;
+	unsigned char		lcr;
+	unsigned char		mcr;
+	unsigned char		fcr;
+	unsigned char		efr;
+
+	int			use_dma;
+	/*
+	 * Some bits in registers are cleared on a read, so they must
+	 * be saved whenever the register is read but the bits will not
+	 * be immediately processed.
+	 */
+	unsigned int		lsr_break_flag;
+	unsigned char		msr_saved_flags;
+	char			name[20];
+	unsigned long		port_activity;
+};
+
+#endif /* __OMAP_SERIAL_H__ */