65bf7ca000
After commit 24d7b40a60 (ARM: OMAP2+:
PM: MPU DVFS: use generic CPU device for MPU-SS), OPPs are registered
using an existing CPU device, not the omap_device for MPU-SS.
First, fix the board file to use get_cpu_device() as required by the
above commit, otherwise custom OPPs will be added to the wrong device.
Second, the board files OPP init is called from the its init_machine
method, and the generic CPU devices are not yet created when
init_machine is run. Therefore OPP initialization will fail. To fix,
use a device_initcall() for the board file's OPP customization, and
make the device_initcall board-specific by using a machine_is check.
Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
546 lines
14 KiB
C
546 lines
14 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-omap3beagle.c
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*
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* Copyright (C) 2008 Texas Instruments
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*
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* Modified from mach-omap2/board-3430sdp.c
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*
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* Initial code: Syed Mohammed Khasim
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/opp.h>
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#include <linux/cpu.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <linux/mmc/host.h>
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#include <linux/regulator/machine.h>
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#include <linux/i2c/twl.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include "common.h"
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#include <video/omapdss.h>
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#include <video/omap-panel-tfp410.h>
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#include <plat/gpmc.h>
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#include <linux/platform_data/mtd-nand-omap2.h>
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#include <plat/usb.h>
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#include <plat/omap_device.h>
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#include "mux.h"
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#include "hsmmc.h"
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#include "pm.h"
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#include "common-board-devices.h"
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/*
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* OMAP3 Beagle revision
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* Run time detection of Beagle revision is done by reading GPIO.
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* GPIO ID -
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* AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
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* C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
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* C4 = GPIO173, GPIO172, GPIO171: 1 0 1
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* XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
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* XMC = GPIO173, GPIO172, GPIO171: 0 1 0
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*/
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enum {
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OMAP3BEAGLE_BOARD_UNKN = 0,
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OMAP3BEAGLE_BOARD_AXBX,
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OMAP3BEAGLE_BOARD_C1_3,
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OMAP3BEAGLE_BOARD_C4,
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OMAP3BEAGLE_BOARD_XM,
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OMAP3BEAGLE_BOARD_XMC,
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};
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static u8 omap3_beagle_version;
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/*
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* Board-specific configuration
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* Defaults to BeagleBoard-xMC
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*/
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static struct {
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int mmc1_gpio_wp;
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int usb_pwr_level;
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int dvi_pd_gpio;
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int usr_button_gpio;
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int mmc_caps;
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} beagle_config = {
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.mmc1_gpio_wp = -EINVAL,
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.usb_pwr_level = GPIOF_OUT_INIT_LOW,
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.dvi_pd_gpio = -EINVAL,
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.usr_button_gpio = 4,
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.mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
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};
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static struct gpio omap3_beagle_rev_gpios[] __initdata = {
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{ 171, GPIOF_IN, "rev_id_0" },
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{ 172, GPIOF_IN, "rev_id_1" },
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{ 173, GPIOF_IN, "rev_id_2" },
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};
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static void __init omap3_beagle_init_rev(void)
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{
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int ret;
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u16 beagle_rev = 0;
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omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
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omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
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omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
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ret = gpio_request_array(omap3_beagle_rev_gpios,
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ARRAY_SIZE(omap3_beagle_rev_gpios));
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if (ret < 0) {
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printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
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return;
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}
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beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
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| (gpio_get_value(173) << 2);
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gpio_free_array(omap3_beagle_rev_gpios,
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ARRAY_SIZE(omap3_beagle_rev_gpios));
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switch (beagle_rev) {
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case 7:
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printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
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beagle_config.mmc1_gpio_wp = 29;
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beagle_config.dvi_pd_gpio = 170;
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beagle_config.usr_button_gpio = 7;
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break;
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case 6:
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printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
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beagle_config.mmc1_gpio_wp = 23;
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beagle_config.dvi_pd_gpio = 170;
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beagle_config.usr_button_gpio = 7;
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break;
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case 5:
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printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
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beagle_config.mmc1_gpio_wp = 23;
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beagle_config.dvi_pd_gpio = 170;
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beagle_config.usr_button_gpio = 7;
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break;
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case 0:
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printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
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beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH;
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beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
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break;
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case 2:
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printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
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omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
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beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
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break;
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default:
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printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
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omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
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}
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}
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static struct mtd_partition omap3beagle_nand_partitions[] = {
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/* All the partition sizes are listed in terms of NAND block size */
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{
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.name = "X-Loader",
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.offset = 0,
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 15 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot Env",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
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.size = 1 * NAND_BLOCK_SIZE,
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},
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{
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.name = "Kernel",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "File System",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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/* DSS */
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static struct tfp410_platform_data dvi_panel = {
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.i2c_bus_num = 3,
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.power_down_gpio = -1,
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};
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static struct omap_dss_device beagle_dvi_device = {
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.type = OMAP_DISPLAY_TYPE_DPI,
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.name = "dvi",
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.driver_name = "tfp410",
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.data = &dvi_panel,
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.phy.dpi.data_lines = 24,
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};
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static struct omap_dss_device beagle_tv_device = {
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.name = "tv",
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.driver_name = "venc",
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.type = OMAP_DISPLAY_TYPE_VENC,
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.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
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};
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static struct omap_dss_device *beagle_dss_devices[] = {
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&beagle_dvi_device,
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&beagle_tv_device,
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};
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static struct omap_dss_board_info beagle_dss_data = {
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.num_devices = ARRAY_SIZE(beagle_dss_devices),
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.devices = beagle_dss_devices,
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.default_device = &beagle_dvi_device,
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};
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#include "sdram-micron-mt46h32m32lf-6.h"
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static struct omap2_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.caps = MMC_CAP_4_BIT_DATA,
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.gpio_wp = -EINVAL,
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.deferred = true,
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},
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{} /* Terminator */
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};
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static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
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REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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};
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static struct regulator_consumer_supply beagle_vsim_supply[] = {
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REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
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};
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static struct gpio_led gpio_leds[];
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static int beagle_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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int r;
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mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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mmc[0].gpio_cd = gpio + 0;
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omap_hsmmc_late_init(mmc);
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/*
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* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
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* high / others active low)
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* DVI reset GPIO is different between beagle revisions
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*/
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/* Valid for all -xM revisions */
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if (cpu_is_omap3630()) {
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/*
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* gpio + 1 on Xm controls the TFP410's enable line (active low)
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* gpio + 2 control varies depending on the board rev as below:
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* P7/P8 revisions(prototype): Camera EN
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* A2+ revisions (production): LDO (DVI, serial, led blocks)
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*/
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r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
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"nDVI_PWR_EN");
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if (r)
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pr_err("%s: unable to configure nDVI_PWR_EN\n",
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__func__);
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beagle_config.dvi_pd_gpio = gpio + 2;
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} else {
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/*
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* REVISIT: need ehci-omap hooks for external VBUS
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* power switch and overcurrent detect
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*/
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if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
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pr_err("%s: unable to configure EHCI_nOC\n", __func__);
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}
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dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
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gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
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"nEN_USB_PWR");
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/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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return 0;
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}
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static struct twl4030_gpio_platform_data beagle_gpio_data = {
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.use_leds = true,
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.pullups = BIT(1),
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.pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
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| BIT(15) | BIT(16) | BIT(17),
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.setup = beagle_twl_gpio_setup,
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};
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/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
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static struct regulator_init_data beagle_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(beagle_vmmc1_supply),
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.consumer_supplies = beagle_vmmc1_supply,
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};
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/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
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static struct regulator_init_data beagle_vsim = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 3000000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply),
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.consumer_supplies = beagle_vsim_supply,
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};
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static struct twl4030_platform_data beagle_twldata = {
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/* platform_data for children goes here */
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.gpio = &beagle_gpio_data,
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.vmmc1 = &beagle_vmmc1,
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.vsim = &beagle_vsim,
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};
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static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
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{
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I2C_BOARD_INFO("eeprom", 0x50),
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},
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};
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static int __init omap3_beagle_i2c_init(void)
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{
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omap3_pmic_get_config(&beagle_twldata,
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TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
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TWL_COMMON_PDATA_AUDIO,
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TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
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beagle_twldata.vpll2->constraints.name = "VDVI";
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omap3_pmic_init("twl4030", &beagle_twldata);
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/* Bus 3 is attached to the DVI port where devices like the pico DLP
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* projector don't work reliably with 400kHz */
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omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
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return 0;
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}
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static struct gpio_led gpio_leds[] = {
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{
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.name = "beagleboard::usr0",
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.default_trigger = "heartbeat",
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.gpio = 150,
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},
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{
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.name = "beagleboard::usr1",
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.default_trigger = "mmc0",
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.gpio = 149,
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},
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{
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.name = "beagleboard::pmu_stat",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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},
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};
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static struct gpio_keys_button gpio_buttons[] = {
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{
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.code = BTN_EXTRA,
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/* Dynamically assigned depending on board */
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.gpio = -EINVAL,
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.desc = "user",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data gpio_key_info = {
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.buttons = gpio_buttons,
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.nbuttons = ARRAY_SIZE(gpio_buttons),
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};
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static struct platform_device keys_gpio = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &gpio_key_info,
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},
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};
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static struct platform_device madc_hwmon = {
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.name = "twl4030_madc_hwmon",
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.id = -1,
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};
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static struct platform_device *omap3_beagle_devices[] __initdata = {
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&leds_gpio,
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&keys_gpio,
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&madc_hwmon,
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};
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static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
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.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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.phy_reset = true,
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.reset_gpio_port[0] = -EINVAL,
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.reset_gpio_port[1] = 147,
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.reset_gpio_port[2] = -EINVAL
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};
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#ifdef CONFIG_OMAP_MUX
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static struct omap_board_mux board_mux[] __initdata = {
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#endif
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static int __init beagle_opp_init(void)
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{
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int r = 0;
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if (!machine_is_omap3_beagle())
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return 0;
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/* Initialize the omap3 opp table if not already created. */
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r = omap3_opp_init();
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if (IS_ERR_VALUE(r) && (r != -EEXIST)) {
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pr_err("%s: opp default init failed\n", __func__);
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return r;
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}
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/* Custom OPP enabled for all xM versions */
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if (cpu_is_omap3630()) {
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struct device *mpu_dev, *iva_dev;
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mpu_dev = get_cpu_device(0);
|
|
iva_dev = omap_device_get_by_hwmod_name("iva");
|
|
|
|
if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
|
|
pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
|
|
__func__, mpu_dev, iva_dev);
|
|
return -ENODEV;
|
|
}
|
|
/* Enable MPU 1GHz and lower opps */
|
|
r = opp_enable(mpu_dev, 800000000);
|
|
/* TODO: MPU 1GHz needs SR and ABB */
|
|
|
|
/* Enable IVA 800MHz and lower opps */
|
|
r |= opp_enable(iva_dev, 660000000);
|
|
/* TODO: DSP 800MHz needs SR and ABB */
|
|
if (r) {
|
|
pr_err("%s: failed to enable higher opp %d\n",
|
|
__func__, r);
|
|
/*
|
|
* Cleanup - disable the higher freqs - we dont care
|
|
* about the results
|
|
*/
|
|
opp_disable(mpu_dev, 800000000);
|
|
opp_disable(iva_dev, 660000000);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
device_initcall(beagle_opp_init);
|
|
|
|
static void __init omap3_beagle_init(void)
|
|
{
|
|
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
|
|
omap3_beagle_init_rev();
|
|
|
|
if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
|
|
omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
|
|
mmc[0].caps = beagle_config.mmc_caps;
|
|
omap_hsmmc_init(mmc);
|
|
|
|
omap3_beagle_i2c_init();
|
|
|
|
gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
|
|
|
|
platform_add_devices(omap3_beagle_devices,
|
|
ARRAY_SIZE(omap3_beagle_devices));
|
|
if (gpio_is_valid(beagle_config.dvi_pd_gpio))
|
|
omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
|
|
omap_display_init(&beagle_dss_data);
|
|
omap_serial_init();
|
|
omap_sdrc_init(mt46h32m32lf6_sdrc_params,
|
|
mt46h32m32lf6_sdrc_params);
|
|
|
|
usb_musb_init(NULL);
|
|
usbhs_init(&usbhs_bdata);
|
|
omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
|
|
ARRAY_SIZE(omap3beagle_nand_partitions));
|
|
omap_twl4030_audio_init("omap3beagle");
|
|
|
|
/* Ensure msecure is mux'd to be able to set the RTC. */
|
|
omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
|
|
|
|
/* Ensure SDRC pins are mux'd for self-refresh */
|
|
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
|
|
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
|
|
}
|
|
|
|
MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
|
|
/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
|
|
.atag_offset = 0x100,
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap3_init_early,
|
|
.init_irq = omap3_init_irq,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap3_beagle_init,
|
|
.init_late = omap3_init_late,
|
|
.timer = &omap3_secure_timer,
|
|
.restart = omap_prcm_restart,
|
|
MACHINE_END
|