>From 0f017ffac2990876331a2378e7845d91b2e0088c Mon Sep 17 00:00:00 2001
From: Govindraj R <govindraj.raja@xxxxxx>
Date: Wed, 28 Oct 2009 12:23:02 +0530
Subject: [PATCHv2 2/3] OMAP UART: Add platform data for omap-serial driver.
This patch adds platform data support for omap-serial driver.
Signed-off-by: Govindraj R <govindraj.raja@xxxxxx>
---
arch/arm/mach-omap2/serial.c | 166 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 166 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index dabc089..aa3a282 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -13,6 +13,9 @@
* Copyright (C) 2009 Texas Instruments
* Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@xxxxxx
*
+ * Copyright (C) 2009 Texas Instruments
+ * Added support for Omap-Serial driver - Govindraj R <govindraj.raja@xxxxxx>
+ *
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
@@ -29,6 +32,10 @@
#include <plat/clock.h>
#include <plat/control.h>
+#ifdef CONFIG_SERIAL_OMAP
+#include <plat/dma.h>
+#include <plat/omap-serial.h>
+#endif
#include "prm.h"
#include "pm.h"
#include "prm-regbits-34xx.h"
@@ -37,6 +44,7 @@
#define DEFAULT_TIMEOUT (5 * HZ)
+#ifdef CONFIG_SERIAL_8250
struct omap_uart_state {
int num;
int can_sleep;
@@ -654,3 +662,161 @@ void __init omap_serial_init(void)
}
}
}
+#endif
+
+#ifdef CONFIG_SERIAL_OMAP
+
+static struct uart_port_info uart1_port_info = {
+ .dma_enabled = 0,
+ .uartclk = OMAP24XX_BASE_BAUD * 16
+};
+
+static struct uart_port_info uart2_port_info = {
+ .dma_enabled = 1,
+ .uartclk = OMAP24XX_BASE_BAUD * 16
+};
+
+static struct uart_port_info uart3_port_info = {
+ .dma_enabled = 0,
+ .uartclk = OMAP24XX_BASE_BAUD * 16
+};
+
+static struct resource omap2_uart1_resources[] = {
+ {
+ .start = OMAP_UART1_BASE,
+ .end = OMAP_UART1_BASE + 0x3ff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ /* UART1 IRQ - 72*/
+ .start = INT_24XX_UART1_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ /* UART1 TX DMA CHANNEL -S_DMA_48- */
+ .start = OMAP24XX_DMA_UART1_TX,
+ .flags = IORESOURCE_DMA,
+ }, {
+ /* UART1 RX DMA CHANNEL -S_DMA_49- */
+ .start = OMAP24XX_DMA_UART1_RX,
+ .flags = IORESOURCE_DMA,
+ }
+};
+
+static struct resource omap2_uart2_resources[] = {
+ {
+ .start = OMAP_UART2_BASE,
+ .end = OMAP_UART2_BASE + 0x3ff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ /* UART2 IRQ - 73*/
+ .start = INT_24XX_UART2_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ /* UART2 TX DMA CHANNEL -S_DMA_50- */
+ .start = OMAP24XX_DMA_UART2_TX,
+ .flags = IORESOURCE_DMA,
+ }, {
+ /* UART2 RX DMA CHANNEL -S_DMA_51- */
+ .start = OMAP24XX_DMA_UART2_RX,
+ .flags = IORESOURCE_DMA,
+ }
+};
+
+static struct resource omap2_uart3_resources[] = {
+ {
+ .start = OMAP_UART3_BASE,
+ .end = OMAP_UART3_BASE + 0x3ff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ /* UART3 IRQ - 74*/
+ .start = INT_24XX_UART3_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ /* UART3 TX DMA CHANNEL -S_DMA_52- */
+ .start = OMAP24XX_DMA_UART3_TX,
+ .flags = IORESOURCE_DMA,
+ }, {
+ /* UART3 RX DMA CHANNEL -S_DMA_53- */
+ .start = OMAP24XX_DMA_UART3_RX,
+ .flags = IORESOURCE_DMA,
+ }
+};
+
+/* OMAP UART platform structure */
+static struct platform_device uart1_device = {
+ .name = "omap-uart",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(omap2_uart1_resources),
+ .resource = omap2_uart1_resources,
+ .dev = {
+ .platform_data = &uart1_port_info
+ },
+};
+static struct platform_device uart2_device = {
+ .name = "omap-uart",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(omap2_uart2_resources),
+ .resource = omap2_uart2_resources,
+ .dev = {
+ .platform_data = &uart2_port_info,
+ },
+};
+static struct platform_device uart3_device = {
+ .name = "omap-uart",
+ .id = 3,
+ .num_resources = ARRAY_SIZE(omap2_uart3_resources),
+ .resource = omap2_uart3_resources,
+ .dev = {
+ .platform_data = &uart3_port_info,
+ },
+};
+
+static struct platform_device *uart_devices[] = {
+ &uart1_device,
+ &uart2_device,
+ &uart3_device,
+};
+
+void omap_serial_hsuart_wakeup_source_init(int num)
+{
+ struct omap_hsuart_state *uart = &omap_hsuart[num];
+
+ if (cpu_is_omap34xx()) {
+ u32 mod = (uart->num == 2) ? OMAP3430_PER_MOD : CORE_MOD;
+ u32 wk_mask = 0;
+ u32 padconf = 0;
+
+ uart->wk_en = OMAP34XX_PRM_REGADDR(mod, PM_WKEN1);
+ uart->wk_st = OMAP34XX_PRM_REGADDR(mod, PM_WKST1);
+ switch (uart->num) {
+ case 0:
+ wk_mask = OMAP3430_ST_UART1_MASK;
+ padconf = 0x182;
+ break;
+ case 1:
+ wk_mask = OMAP3430_ST_UART2_MASK;
+ padconf = 0x17a;
+ break;
+ case 2:
+ wk_mask = OMAP3430_ST_UART3_MASK;
+ padconf = 0x19e;
+ break;
+ }
+ uart->wk_mask = wk_mask;
+ uart->padconf = padconf;
+ } else {
+ uart->wk_en = 0;
+ uart->wk_st = 0;
+ uart->wk_mask = 0;
+ uart->padconf = 0;
+ }
+}
+
+void __init omap_serial_init(void)
+{
+ int ret = 0, i;
+ for (i = 0; i < ARRAY_SIZE(uart_devices); i++)
+ omap_hsuart_idle_init(i);
+
+ ret = platform_add_devices(uart_devices, ARRAY_SIZE(uart_devices));
+}
+#endif /* CONFIG_SERIAL_OMAP */
--
1.5.5
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