>From 0f017ffac2990876331a2378e7845d91b2e0088c Mon Sep 17 00:00:00 2001 From: Govindraj R <[email protected]> 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 <[email protected]> --- 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 <[email protected] * + * Copyright (C) 2009 Texas Instruments + * Added support for Omap-Serial driver - Govindraj R <[email protected]> + * * 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 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
