leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
fe894f97ad
linux/arch/arm/mach-pxa/saar.c
Russell King cc155c6f2c [ARM] pxa: allow platforms to control which uarts are registered 
For some platforms, it is inappropriate to register all PXA UARTs.
In some cases, the UARTs may not be used, and in others we may want
to avoid registering the UARTs to allow other drivers (eg, FICP) to
make use of the UART.

In addition, a while back there was a request to be able to pass
platform data to the UART driver.

This patch enables all of this by providing functions platforms can
call to register each individual UART.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-01 09:02:55 +08:00

607 lines
13 KiB
C
Raw Blame History

/*
* linux/arch/arm/mach-pxa/saar.c
*
* Support for the Marvell PXA930 Handheld Platform (aka SAAR)
*
* Copyright (C) 2007-2008 Marvell International Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* publishhed by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/i2c.h>
#include <linux/smc91x.h>
#include <linux/mfd/da903x.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/onenand.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <mach/pxa930.h>
#include <plat/i2c.h>
#include <mach/pxafb.h>
#include "devices.h"
#include "generic.h"
#define GPIO_LCD_RESET (16)
/* SAAR MFP configurations */
static mfp_cfg_t saar_mfp_cfg[] __initdata = {
/* LCD */
GPIO23_LCD_DD0,
GPIO24_LCD_DD1,
GPIO25_LCD_DD2,
GPIO26_LCD_DD3,
GPIO27_LCD_DD4,
GPIO28_LCD_DD5,
GPIO29_LCD_DD6,
GPIO44_LCD_DD7,
GPIO21_LCD_CS,
GPIO22_LCD_VSYNC,
GPIO17_LCD_FCLK_RD,
GPIO18_LCD_LCLK_A0,
GPIO19_LCD_PCLK_WR,
GPIO16_GPIO, /* LCD reset */
/* Ethernet */
DF_nCS1_nCS3,
GPIO97_GPIO,
/* DFI */
DF_INT_RnB_ND_INT_RnB,
DF_nRE_nOE_ND_nRE,
DF_nWE_ND_nWE,
DF_CLE_nOE_ND_CLE,
DF_nADV1_ALE_ND_ALE,
DF_nADV2_ALE_nCS3,
DF_nCS0_ND_nCS0,
DF_IO0_ND_IO0,
DF_IO1_ND_IO1,
DF_IO2_ND_IO2,
DF_IO3_ND_IO3,
DF_IO4_ND_IO4,
DF_IO5_ND_IO5,
DF_IO6_ND_IO6,
DF_IO7_ND_IO7,
DF_IO8_ND_IO8,
DF_IO9_ND_IO9,
DF_IO10_ND_IO10,
DF_IO11_ND_IO11,
DF_IO12_ND_IO12,
DF_IO13_ND_IO13,
DF_IO14_ND_IO14,
DF_IO15_ND_IO15,
};
#define SAAR_ETH_PHYS (0x14000000)
static struct resource smc91x_resources[] = {
[0] = {
.start = (SAAR_ETH_PHYS + 0x300),
.end = (SAAR_ETH_PHYS + 0xfffff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
.end = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
}
};
static struct smc91x_platdata saar_smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
.dev = {
.platform_data = &saar_smc91x_info,
},
};
#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULE)
static uint16_t lcd_power_on[] = {
/* single frame */
SMART_CMD_NOOP,
SMART_CMD(0x00),
SMART_DELAY(0),
SMART_CMD_NOOP,
SMART_CMD(0x00),
SMART_DELAY(0),
SMART_CMD_NOOP,
SMART_CMD(0x00),
SMART_DELAY(0),
SMART_CMD_NOOP,
SMART_CMD(0x00),
SMART_DELAY(10),
/* calibration control */
SMART_CMD(0x00),
SMART_CMD(0xA4),
SMART_DAT(0x80),
SMART_DAT(0x01),
SMART_DELAY(150),
/*Power-On Init sequence*/
SMART_CMD(0x00), /* output ctrl */
SMART_CMD(0x01),
SMART_DAT(0x01),
SMART_DAT(0x00),
SMART_CMD(0x00), /* wave ctrl */
SMART_CMD(0x02),
SMART_DAT(0x07),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x03), /* entry mode */
SMART_DAT(0xD0),
SMART_DAT(0x30),
SMART_CMD(0x00),
SMART_CMD(0x08), /* display ctrl 2 */
SMART_DAT(0x08),
SMART_DAT(0x08),
SMART_CMD(0x00),
SMART_CMD(0x09), /* display ctrl 3 */
SMART_DAT(0x04),
SMART_DAT(0x2F),
SMART_CMD(0x00),
SMART_CMD(0x0A), /* display ctrl 4 */
SMART_DAT(0x00),
SMART_DAT(0x08),
SMART_CMD(0x00),
SMART_CMD(0x0D), /* Frame Marker position */
SMART_DAT(0x00),
SMART_DAT(0x08),
SMART_CMD(0x00),
SMART_CMD(0x60), /* Driver output control */
SMART_DAT(0x27),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x61), /* Base image display control */
SMART_DAT(0x00),
SMART_DAT(0x01),
SMART_CMD(0x00),
SMART_CMD(0x30), /* Y settings 30h-3Dh */
SMART_DAT(0x07),
SMART_DAT(0x07),
SMART_CMD(0x00),
SMART_CMD(0x31),
SMART_DAT(0x00),
SMART_DAT(0x07),
SMART_CMD(0x00),
SMART_CMD(0x32), /* Timing(3), ASW HOLD=0.5CLK */
SMART_DAT(0x04),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x33), /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */
SMART_DAT(0x03),
SMART_DAT(0x03),
SMART_CMD(0x00),
SMART_CMD(0x34),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x35),
SMART_DAT(0x02),
SMART_DAT(0x05),
SMART_CMD(0x00),
SMART_CMD(0x36),
SMART_DAT(0x1F),
SMART_DAT(0x1F),
SMART_CMD(0x00),
SMART_CMD(0x37),
SMART_DAT(0x07),
SMART_DAT(0x07),
SMART_CMD(0x00),
SMART_CMD(0x38),
SMART_DAT(0x00),
SMART_DAT(0x07),
SMART_CMD(0x00),
SMART_CMD(0x39),
SMART_DAT(0x04),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x3A),
SMART_DAT(0x03),
SMART_DAT(0x03),
SMART_CMD(0x00),
SMART_CMD(0x3B),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00),
SMART_CMD(0x3C),
SMART_DAT(0x02),
SMART_DAT(0x05),
SMART_CMD(0x00),
SMART_CMD(0x3D),
SMART_DAT(0x1F),
SMART_DAT(0x1F),
SMART_CMD(0x00), /* Display control 1 */
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x01),
SMART_CMD(0x00), /* Power control 5 */
SMART_CMD(0x17),
SMART_DAT(0x00),
SMART_DAT(0x01),
SMART_CMD(0x00), /* Power control 1 */
SMART_CMD(0x10),
SMART_DAT(0x10),
SMART_DAT(0xB0),
SMART_CMD(0x00), /* Power control 2 */
SMART_CMD(0x11),
SMART_DAT(0x01),
SMART_DAT(0x30),
SMART_CMD(0x00), /* Power control 3 */
SMART_CMD(0x12),
SMART_DAT(0x01),
SMART_DAT(0x9E),
SMART_CMD(0x00), /* Power control 4 */
SMART_CMD(0x13),
SMART_DAT(0x17),
SMART_DAT(0x00),
SMART_CMD(0x00), /* Power control 3 */
SMART_CMD(0x12),
SMART_DAT(0x01),
SMART_DAT(0xBE),
SMART_DELAY(100),
/* display mode : 240*320 */
SMART_CMD(0x00), /* RAM address set(H) 0*/
SMART_CMD(0x20),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* RAM address set(V) 4*/
SMART_CMD(0x21),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* Start of Window RAM address set(H) 8*/
SMART_CMD(0x50),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* End of Window RAM address set(H) 12*/
SMART_CMD(0x51),
SMART_DAT(0x00),
SMART_DAT(0xEF),
SMART_CMD(0x00), /* Start of Window RAM address set(V) 16*/
SMART_CMD(0x52),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* End of Window RAM address set(V) 20*/
SMART_CMD(0x53),
SMART_DAT(0x01),
SMART_DAT(0x3F),
SMART_CMD(0x00), /* Panel interface control 1 */
SMART_CMD(0x90),
SMART_DAT(0x00),
SMART_DAT(0x1A),
SMART_CMD(0x00), /* Panel interface control 2 */
SMART_CMD(0x92),
SMART_DAT(0x04),
SMART_DAT(0x00),
SMART_CMD(0x00), /* Panel interface control 3 */
SMART_CMD(0x93),
SMART_DAT(0x00),
SMART_DAT(0x05),
SMART_DELAY(20),
};
static uint16_t lcd_panel_on[] = {
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x21),
SMART_DELAY(1),
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x61),
SMART_DELAY(100),
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x01),
SMART_DAT(0x73),
SMART_DELAY(1),
};
static uint16_t lcd_panel_off[] = {
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x72),
SMART_DELAY(40),
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x01),
SMART_DELAY(1),
SMART_CMD(0x00),
SMART_CMD(0x07),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_DELAY(1),
};
static uint16_t lcd_power_off[] = {
SMART_CMD(0x00),
SMART_CMD(0x10),
SMART_DAT(0x00),
SMART_DAT(0x80),
SMART_CMD(0x00),
SMART_CMD(0x11),
SMART_DAT(0x01),
SMART_DAT(0x60),
SMART_CMD(0x00),
SMART_CMD(0x12),
SMART_DAT(0x01),
SMART_DAT(0xAE),
SMART_DELAY(40),
SMART_CMD(0x00),
SMART_CMD(0x10),
SMART_DAT(0x00),
SMART_DAT(0x00),
};
static uint16_t update_framedata[] = {
/* set display ram: 240*320 */
SMART_CMD(0x00), /* RAM address set(H) 0*/
SMART_CMD(0x20),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* RAM address set(V) 4*/
SMART_CMD(0x21),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */
SMART_CMD(0x50),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */
SMART_CMD(0x51),
SMART_DAT(0x00),
SMART_DAT(0xEF),
SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */
SMART_CMD(0x52),
SMART_DAT(0x00),
SMART_DAT(0x00),
SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */
SMART_CMD(0x53),
SMART_DAT(0x01),
SMART_DAT(0x3F),
/* wait for vsync cmd before transferring frame data */
SMART_CMD_WAIT_FOR_VSYNC,
/* write ram */
SMART_CMD(0x00),
SMART_CMD(0x22),
/* write frame data */
SMART_CMD_WRITE_FRAME,
};
static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var)
{
static int pin_requested = 0;
struct fb_info *info = container_of(var, struct fb_info, var);
int err;
if (!pin_requested) {
err = gpio_request(GPIO_LCD_RESET, "lcd reset");
if (err) {
pr_err("failed to request gpio for LCD reset\n");
return;
}
gpio_direction_output(GPIO_LCD_RESET, 0);
pin_requested = 1;
}
if (on) {
gpio_set_value(GPIO_LCD_RESET, 0); msleep(100);
gpio_set_value(GPIO_LCD_RESET, 1); msleep(10);
pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on));
pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on));
} else {
pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off));
pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off));
}
err = pxafb_smart_flush(info);
if (err)
pr_err("%s: timed out\n", __func__);
}
static void ltm022a97a_update(struct fb_info *info)
{
pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata));
pxafb_smart_flush(info);
}
static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = {
[0] = {
.xres = 240,
.yres = 320,
.bpp = 16,
.a0csrd_set_hld = 30,
.a0cswr_set_hld = 30,
.wr_pulse_width = 30,
.rd_pulse_width = 30,
.op_hold_time = 30,
.cmd_inh_time = 60,
/* L_LCLK_A0 and L_LCLK_RD active low */
.sync = FB_SYNC_HOR_HIGH_ACT |
FB_SYNC_VERT_HIGH_ACT,
},
};
static struct pxafb_mach_info saar_lcd_info = {
.modes = toshiba_ltm022a97a_modes,
.num_modes = 1,
.lcd_conn = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL,
.pxafb_lcd_power = ltm022a97a_lcd_power,
.smart_update = ltm022a97a_update,
};
static void __init saar_init_lcd(void)
{
set_pxa_fb_info(&saar_lcd_info);
}
#else
static inline void saar_init_lcd(void) {}
#endif
#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
static struct da9034_backlight_pdata saar_da9034_backlight = {
.output_current = 4, /* 4mA */
};
static struct da903x_subdev_info saar_da9034_subdevs[] = {
[0] = {
.name = "da903x-backlight",
.id = DA9034_ID_WLED,
.platform_data = &saar_da9034_backlight,
},
};
static struct da903x_platform_data saar_da9034_info = {
.num_subdevs = ARRAY_SIZE(saar_da9034_subdevs),
.subdevs = saar_da9034_subdevs,
};
static struct i2c_board_info saar_i2c_info[] = {
[0] = {
.type = "da9034",
.addr = 0x34,
.platform_data = &saar_da9034_info,
.irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
},
};
static void __init saar_init_i2c(void)
{
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info));
}
#else
static inline void saar_init_i2c(void) {}
#endif
#if defined(CONFIG_MTD_ONENAND) || defined(CONFIG_MTD_ONENAND_MODULE)
static struct mtd_partition saar_onenand_partitions[] = {
{
.name = "bootloader",
.offset = 0,
.size = SZ_1M,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "reserved",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "reserved",
.offset = MTDPART_OFS_APPEND,
.size = SZ_8M,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = (SZ_2M + SZ_1M),
.mask_flags = 0,
}, {
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = SZ_48M,
.mask_flags = 0,
}
};
static struct onenand_platform_data saar_onenand_info = {
.parts = saar_onenand_partitions,
.nr_parts = ARRAY_SIZE(saar_onenand_partitions),
};
#define SMC_CS0_PHYS_BASE (0x10000000)
static struct resource saar_resource_onenand[] = {
[0] = {
.start = SMC_CS0_PHYS_BASE,
.end = SMC_CS0_PHYS_BASE + SZ_1M,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device saar_device_onenand = {
.name = "onenand-flash",
.id = -1,
.dev = {
.platform_data = &saar_onenand_info,
},
.resource = saar_resource_onenand,
.num_resources = ARRAY_SIZE(saar_resource_onenand),
};
static void __init saar_init_onenand(void)
{
platform_device_register(&saar_device_onenand);
}
#else
static void __init saar_init_onenand(void) {}
#endif
static void __init saar_init(void)
{
/* initialize MFP configurations */
pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
platform_device_register(&smc91x_device);
saar_init_onenand();
saar_init_i2c();
saar_init_lcd();
}
MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)")
/* Maintainer: Eric Miao <eric.miao@marvell.com> */
.phys_io = 0x40000000,
.boot_params = 0xa0000100,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = pxa_map_io,
.init_irq = pxa3xx_init_irq,
.timer = &pxa_timer,
.init_machine = saar_init,
MACHINE_END
Reference in New Issue View Git Blame Copy Permalink