"Govindraj.R" <[email protected]> writes:
> 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
Can you do this without the #ifdefs?
Instead, we should drop the 8250 specifics from omap_uart_state.
At first glance, the plat_serial8250_port pointer is passed around
mainly so it can be passed to serial_read|write_reg(). If you changed
that function to take an omap_uart_state instead, and add the base and
regshift values to omap_uart_state you could get rid of the 8250
pointer from omap_uart_state.
Looks like omap_uart_state should also grow an irq field so
omap_uart_idle_init() could work for both drivers.
> +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,
> +};
NAK. Now that we have omap_device upstream, we need to use
omap_device for the creation of these platform devices. omap_device
building will use a UART hwmod to build the resources and
platform_devices automatically.
> +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;
??? this looks like an exact copy of what's in omap_uart_idle_init()
> + } 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
Kevin
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