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-rw-r--r--arch/arm/plat-omap/common.c16
-rw-r--r--arch/arm/plat-omap/devices.c41
-rw-r--r--arch/arm/plat-omap/include/plat/common.h1
-rw-r--r--arch/arm/plat-omap/include/plat/dma.h2
-rw-r--r--arch/arm/plat-omap/include/plat/irqs.h2
-rw-r--r--arch/arm/plat-omap/include/plat/omap-serial.h129
6 files changed, 133 insertions, 58 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/devices.c b/arch/arm/plat-omap/devices.c
index d1920be7833b..8e88e0e5d524 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -232,46 +232,6 @@ static void omap_init_uwire(void)
static inline void omap_init_uwire(void) {}
#endif
-/*-------------------------------------------------------------------------*/
-
-#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
-
-static struct resource wdt_resources[] = {
- {
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap_wdt_device = {
- .name = "omap_wdt",
- .id = -1,
- .num_resources = ARRAY_SIZE(wdt_resources),
- .resource = wdt_resources,
-};
-
-static void omap_init_wdt(void)
-{
- if (cpu_is_omap16xx())
- wdt_resources[0].start = 0xfffeb000;
- else if (cpu_is_omap2420())
- wdt_resources[0].start = 0x48022000; /* WDT2 */
- else if (cpu_is_omap2430())
- wdt_resources[0].start = 0x49016000; /* WDT2 */
- else if (cpu_is_omap343x())
- wdt_resources[0].start = 0x48314000; /* WDT2 */
- else if (cpu_is_omap44xx())
- wdt_resources[0].start = 0x4a314000;
- else
- return;
-
- wdt_resources[0].end = wdt_resources[0].start + 0x4f;
-
- (void) platform_device_register(&omap_wdt_device);
-}
-#else
-static inline void omap_init_wdt(void) {}
-#endif
-
/*
* This gets called after board-specific INIT_MACHINE, and initializes most
* on-chip peripherals accessible on this board (except for few like USB):
@@ -300,7 +260,6 @@ static int __init omap_init_devices(void)
omap_init_rng();
omap_init_mcpdm();
omap_init_uwire();
- omap_init_wdt();
return 0;
}
arch_initcall(omap_init_devices);
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__ */