Path: blob/master/arch/arm/mach-davinci/board-dm646x-evm.c
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/*1* TI DaVinci DM646X EVM board2*3* Derived from: arch/arm/mach-davinci/board-evm.c4* Copyright (C) 2006 Texas Instruments.5*6* (C) 2007-2008, MontaVista Software, Inc.7*8* This file is licensed under the terms of the GNU General Public License9* version 2. This program is licensed "as is" without any warranty of any10* kind, whether express or implied.11*12*/1314/**************************************************************************15* Included Files16**************************************************************************/1718#include <linux/kernel.h>19#include <linux/init.h>20#include <linux/leds.h>21#include <linux/gpio.h>22#include <linux/platform_device.h>23#include <linux/i2c.h>24#include <linux/i2c/at24.h>25#include <linux/i2c/pcf857x.h>2627#include <media/tvp514x.h>2829#include <linux/mtd/mtd.h>30#include <linux/mtd/nand.h>31#include <linux/mtd/partitions.h>32#include <linux/clk.h>3334#include <asm/mach-types.h>35#include <asm/mach/arch.h>3637#include <mach/dm646x.h>38#include <mach/common.h>39#include <mach/serial.h>40#include <mach/i2c.h>41#include <mach/nand.h>42#include <mach/clock.h>43#include <mach/cdce949.h>44#include <mach/aemif.h>4546#include "clock.h"4748#define NAND_BLOCK_SIZE SZ_128K4950/* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot51* and U-Boot environment this avoids dependency on any particular combination52* of UBL, U-Boot or flashing tools etc.53*/54static struct mtd_partition davinci_nand_partitions[] = {55{56/* UBL, U-Boot with environment */57.name = "bootloader",58.offset = MTDPART_OFS_APPEND,59.size = 16 * NAND_BLOCK_SIZE,60.mask_flags = MTD_WRITEABLE, /* force read-only */61}, {62.name = "kernel",63.offset = MTDPART_OFS_APPEND,64.size = SZ_4M,65.mask_flags = 0,66}, {67.name = "filesystem",68.offset = MTDPART_OFS_APPEND,69.size = MTDPART_SIZ_FULL,70.mask_flags = 0,71}72};7374static struct davinci_aemif_timing dm6467tevm_nandflash_timing = {75.wsetup = 29,76.wstrobe = 24,77.whold = 14,78.rsetup = 19,79.rstrobe = 33,80.rhold = 0,81.ta = 29,82};8384static struct davinci_nand_pdata davinci_nand_data = {85.mask_cle = 0x80000,86.mask_ale = 0x40000,87.parts = davinci_nand_partitions,88.nr_parts = ARRAY_SIZE(davinci_nand_partitions),89.ecc_mode = NAND_ECC_HW,90.options = 0,91};9293static struct resource davinci_nand_resources[] = {94{95.start = DM646X_ASYNC_EMIF_CS2_SPACE_BASE,96.end = DM646X_ASYNC_EMIF_CS2_SPACE_BASE + SZ_32M - 1,97.flags = IORESOURCE_MEM,98}, {99.start = DM646X_ASYNC_EMIF_CONTROL_BASE,100.end = DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,101.flags = IORESOURCE_MEM,102},103};104105static struct platform_device davinci_nand_device = {106.name = "davinci_nand",107.id = 0,108109.num_resources = ARRAY_SIZE(davinci_nand_resources),110.resource = davinci_nand_resources,111112.dev = {113.platform_data = &davinci_nand_data,114},115};116117#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \118defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)119#define HAS_ATA 1120#else121#define HAS_ATA 0122#endif123124/* CPLD Register 0 bits to control ATA */125#define DM646X_EVM_ATA_RST BIT(0)126#define DM646X_EVM_ATA_PWD BIT(1)127128/* CPLD Register 0 Client: used for I/O Control */129static int cpld_reg0_probe(struct i2c_client *client,130const struct i2c_device_id *id)131{132if (HAS_ATA) {133u8 data;134struct i2c_msg msg[2] = {135{136.addr = client->addr,137.flags = I2C_M_RD,138.len = 1,139.buf = &data,140},141{142.addr = client->addr,143.flags = 0,144.len = 1,145.buf = &data,146},147};148149/* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */150i2c_transfer(client->adapter, msg, 1);151data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);152i2c_transfer(client->adapter, msg + 1, 1);153}154155return 0;156}157158static const struct i2c_device_id cpld_reg_ids[] = {159{ "cpld_reg0", 0, },160{ },161};162163static struct i2c_driver dm6467evm_cpld_driver = {164.driver.name = "cpld_reg0",165.id_table = cpld_reg_ids,166.probe = cpld_reg0_probe,167};168169/* LEDS */170171static struct gpio_led evm_leds[] = {172{ .name = "DS1", .active_low = 1, },173{ .name = "DS2", .active_low = 1, },174{ .name = "DS3", .active_low = 1, },175{ .name = "DS4", .active_low = 1, },176};177178static const struct gpio_led_platform_data evm_led_data = {179.num_leds = ARRAY_SIZE(evm_leds),180.leds = evm_leds,181};182183static struct platform_device *evm_led_dev;184185static int evm_led_setup(struct i2c_client *client, int gpio,186unsigned int ngpio, void *c)187{188struct gpio_led *leds = evm_leds;189int status;190191while (ngpio--) {192leds->gpio = gpio++;193leds++;194};195196evm_led_dev = platform_device_alloc("leds-gpio", 0);197platform_device_add_data(evm_led_dev, &evm_led_data,198sizeof(evm_led_data));199200evm_led_dev->dev.parent = &client->dev;201status = platform_device_add(evm_led_dev);202if (status < 0) {203platform_device_put(evm_led_dev);204evm_led_dev = NULL;205}206return status;207}208209static int evm_led_teardown(struct i2c_client *client, int gpio,210unsigned ngpio, void *c)211{212if (evm_led_dev) {213platform_device_unregister(evm_led_dev);214evm_led_dev = NULL;215}216return 0;217}218219static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };220221static int evm_sw_setup(struct i2c_client *client, int gpio,222unsigned ngpio, void *c)223{224int status;225int i;226char label[10];227228for (i = 0; i < 4; ++i) {229snprintf(label, 10, "user_sw%d", i);230status = gpio_request(gpio, label);231if (status)232goto out_free;233evm_sw_gpio[i] = gpio++;234235status = gpio_direction_input(evm_sw_gpio[i]);236if (status) {237gpio_free(evm_sw_gpio[i]);238evm_sw_gpio[i] = -EINVAL;239goto out_free;240}241242status = gpio_export(evm_sw_gpio[i], 0);243if (status) {244gpio_free(evm_sw_gpio[i]);245evm_sw_gpio[i] = -EINVAL;246goto out_free;247}248}249return status;250out_free:251for (i = 0; i < 4; ++i) {252if (evm_sw_gpio[i] != -EINVAL) {253gpio_free(evm_sw_gpio[i]);254evm_sw_gpio[i] = -EINVAL;255}256}257return status;258}259260static int evm_sw_teardown(struct i2c_client *client, int gpio,261unsigned ngpio, void *c)262{263int i;264265for (i = 0; i < 4; ++i) {266if (evm_sw_gpio[i] != -EINVAL) {267gpio_unexport(evm_sw_gpio[i]);268gpio_free(evm_sw_gpio[i]);269evm_sw_gpio[i] = -EINVAL;270}271}272return 0;273}274275static int evm_pcf_setup(struct i2c_client *client, int gpio,276unsigned int ngpio, void *c)277{278int status;279280if (ngpio < 8)281return -EINVAL;282283status = evm_sw_setup(client, gpio, 4, c);284if (status)285return status;286287return evm_led_setup(client, gpio+4, 4, c);288}289290static int evm_pcf_teardown(struct i2c_client *client, int gpio,291unsigned int ngpio, void *c)292{293BUG_ON(ngpio < 8);294295evm_sw_teardown(client, gpio, 4, c);296evm_led_teardown(client, gpio+4, 4, c);297298return 0;299}300301static struct pcf857x_platform_data pcf_data = {302.gpio_base = DAVINCI_N_GPIO+1,303.setup = evm_pcf_setup,304.teardown = evm_pcf_teardown,305};306307/* Most of this EEPROM is unused, but U-Boot uses some data:308* - 0x7f00, 6 bytes Ethernet Address309* - ... newer boards may have more310*/311312static struct at24_platform_data eeprom_info = {313.byte_len = (256*1024) / 8,314.page_size = 64,315.flags = AT24_FLAG_ADDR16,316.setup = davinci_get_mac_addr,317.context = (void *)0x7f00,318};319320static u8 dm646x_iis_serializer_direction[] = {321TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,322};323324static u8 dm646x_dit_serializer_direction[] = {325TX_MODE,326};327328static struct snd_platform_data dm646x_evm_snd_data[] = {329{330.tx_dma_offset = 0x400,331.rx_dma_offset = 0x400,332.op_mode = DAVINCI_MCASP_IIS_MODE,333.num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),334.tdm_slots = 2,335.serial_dir = dm646x_iis_serializer_direction,336.asp_chan_q = EVENTQ_0,337},338{339.tx_dma_offset = 0x400,340.rx_dma_offset = 0,341.op_mode = DAVINCI_MCASP_DIT_MODE,342.num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),343.tdm_slots = 32,344.serial_dir = dm646x_dit_serializer_direction,345.asp_chan_q = EVENTQ_0,346},347};348349static struct i2c_client *cpld_client;350351static int cpld_video_probe(struct i2c_client *client,352const struct i2c_device_id *id)353{354cpld_client = client;355return 0;356}357358static int __devexit cpld_video_remove(struct i2c_client *client)359{360cpld_client = NULL;361return 0;362}363364static const struct i2c_device_id cpld_video_id[] = {365{ "cpld_video", 0 },366{ }367};368369static struct i2c_driver cpld_video_driver = {370.driver = {371.name = "cpld_video",372},373.probe = cpld_video_probe,374.remove = cpld_video_remove,375.id_table = cpld_video_id,376};377378static void evm_init_cpld(void)379{380i2c_add_driver(&cpld_video_driver);381}382383static struct i2c_board_info __initdata i2c_info[] = {384{385I2C_BOARD_INFO("24c256", 0x50),386.platform_data = &eeprom_info,387},388{389I2C_BOARD_INFO("pcf8574a", 0x38),390.platform_data = &pcf_data,391},392{393I2C_BOARD_INFO("cpld_reg0", 0x3a),394},395{396I2C_BOARD_INFO("tlv320aic33", 0x18),397},398{399I2C_BOARD_INFO("cpld_video", 0x3b),400},401{402I2C_BOARD_INFO("cdce949", 0x6c),403},404};405406static struct davinci_i2c_platform_data i2c_pdata = {407.bus_freq = 100 /* kHz */,408.bus_delay = 0 /* usec */,409};410411#define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)412#define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)413#define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))414#define VCH2CLK_SYSCLK8 (BIT(9))415#define VCH2CLK_AUXCLK (BIT(9) | BIT(8))416#define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))417#define VCH3CLK_SYSCLK8 (BIT(13))418#define VCH3CLK_AUXCLK (BIT(14) | BIT(13))419420#define VIDCH2CLK (BIT(10))421#define VIDCH3CLK (BIT(11))422#define VIDCH1CLK (BIT(4))423#define TVP7002_INPUT (BIT(4))424#define TVP5147_INPUT (~BIT(4))425#define VPIF_INPUT_ONE_CHANNEL (BIT(5))426#define VPIF_INPUT_TWO_CHANNEL (~BIT(5))427#define TVP5147_CH0 "tvp514x-0"428#define TVP5147_CH1 "tvp514x-1"429430static void __iomem *vpif_vidclkctl_reg;431static void __iomem *vpif_vsclkdis_reg;432/* spin lock for updating above registers */433static spinlock_t vpif_reg_lock;434435static int set_vpif_clock(int mux_mode, int hd)436{437unsigned long flags;438unsigned int value;439int val = 0;440int err = 0;441442if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)443return -ENXIO;444445/* disable the clock */446spin_lock_irqsave(&vpif_reg_lock, flags);447value = __raw_readl(vpif_vsclkdis_reg);448value |= (VIDCH3CLK | VIDCH2CLK);449__raw_writel(value, vpif_vsclkdis_reg);450spin_unlock_irqrestore(&vpif_reg_lock, flags);451452val = i2c_smbus_read_byte(cpld_client);453if (val < 0)454return val;455456if (mux_mode == 1)457val &= ~0x40;458else459val |= 0x40;460461err = i2c_smbus_write_byte(cpld_client, val);462if (err)463return err;464465value = __raw_readl(vpif_vidclkctl_reg);466value &= ~(VCH2CLK_MASK);467value &= ~(VCH3CLK_MASK);468469if (hd >= 1)470value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);471else472value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);473474__raw_writel(value, vpif_vidclkctl_reg);475476spin_lock_irqsave(&vpif_reg_lock, flags);477value = __raw_readl(vpif_vsclkdis_reg);478/* enable the clock */479value &= ~(VIDCH3CLK | VIDCH2CLK);480__raw_writel(value, vpif_vsclkdis_reg);481spin_unlock_irqrestore(&vpif_reg_lock, flags);482483return 0;484}485486static struct vpif_subdev_info dm646x_vpif_subdev[] = {487{488.name = "adv7343",489.board_info = {490I2C_BOARD_INFO("adv7343", 0x2a),491},492},493{494.name = "ths7303",495.board_info = {496I2C_BOARD_INFO("ths7303", 0x2c),497},498},499};500501static const char *output[] = {502"Composite",503"Component",504"S-Video",505};506507static struct vpif_display_config dm646x_vpif_display_config = {508.set_clock = set_vpif_clock,509.subdevinfo = dm646x_vpif_subdev,510.subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),511.output = output,512.output_count = ARRAY_SIZE(output),513.card_name = "DM646x EVM",514};515516/**517* setup_vpif_input_path()518* @channel: channel id (0 - CH0, 1 - CH1)519* @sub_dev_name: ptr sub device name520*521* This will set vpif input to capture data from tvp514x or522* tvp7002.523*/524static int setup_vpif_input_path(int channel, const char *sub_dev_name)525{526int err = 0;527int val;528529/* for channel 1, we don't do anything */530if (channel != 0)531return 0;532533if (!cpld_client)534return -ENXIO;535536val = i2c_smbus_read_byte(cpld_client);537if (val < 0)538return val;539540if (!strcmp(sub_dev_name, TVP5147_CH0) ||541!strcmp(sub_dev_name, TVP5147_CH1))542val &= TVP5147_INPUT;543else544val |= TVP7002_INPUT;545546err = i2c_smbus_write_byte(cpld_client, val);547if (err)548return err;549return 0;550}551552/**553* setup_vpif_input_channel_mode()554* @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel555*556* This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)557*/558static int setup_vpif_input_channel_mode(int mux_mode)559{560unsigned long flags;561int err = 0;562int val;563u32 value;564565if (!vpif_vsclkdis_reg || !cpld_client)566return -ENXIO;567568val = i2c_smbus_read_byte(cpld_client);569if (val < 0)570return val;571572spin_lock_irqsave(&vpif_reg_lock, flags);573value = __raw_readl(vpif_vsclkdis_reg);574if (mux_mode) {575val &= VPIF_INPUT_TWO_CHANNEL;576value |= VIDCH1CLK;577} else {578val |= VPIF_INPUT_ONE_CHANNEL;579value &= ~VIDCH1CLK;580}581__raw_writel(value, vpif_vsclkdis_reg);582spin_unlock_irqrestore(&vpif_reg_lock, flags);583584err = i2c_smbus_write_byte(cpld_client, val);585if (err)586return err;587588return 0;589}590591static struct tvp514x_platform_data tvp5146_pdata = {592.clk_polarity = 0,593.hs_polarity = 1,594.vs_polarity = 1595};596597#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)598599static struct vpif_subdev_info vpif_capture_sdev_info[] = {600{601.name = TVP5147_CH0,602.board_info = {603I2C_BOARD_INFO("tvp5146", 0x5d),604.platform_data = &tvp5146_pdata,605},606.input = INPUT_CVBS_VI2B,607.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,608.can_route = 1,609.vpif_if = {610.if_type = VPIF_IF_BT656,611.hd_pol = 1,612.vd_pol = 1,613.fid_pol = 0,614},615},616{617.name = TVP5147_CH1,618.board_info = {619I2C_BOARD_INFO("tvp5146", 0x5c),620.platform_data = &tvp5146_pdata,621},622.input = INPUT_SVIDEO_VI2C_VI1C,623.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,624.can_route = 1,625.vpif_if = {626.if_type = VPIF_IF_BT656,627.hd_pol = 1,628.vd_pol = 1,629.fid_pol = 0,630},631},632};633634static const struct vpif_input dm6467_ch0_inputs[] = {635{636.input = {637.index = 0,638.name = "Composite",639.type = V4L2_INPUT_TYPE_CAMERA,640.std = TVP514X_STD_ALL,641},642.subdev_name = TVP5147_CH0,643},644};645646static const struct vpif_input dm6467_ch1_inputs[] = {647{648.input = {649.index = 0,650.name = "S-Video",651.type = V4L2_INPUT_TYPE_CAMERA,652.std = TVP514X_STD_ALL,653},654.subdev_name = TVP5147_CH1,655},656};657658static struct vpif_capture_config dm646x_vpif_capture_cfg = {659.setup_input_path = setup_vpif_input_path,660.setup_input_channel_mode = setup_vpif_input_channel_mode,661.subdev_info = vpif_capture_sdev_info,662.subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),663.chan_config[0] = {664.inputs = dm6467_ch0_inputs,665.input_count = ARRAY_SIZE(dm6467_ch0_inputs),666},667.chan_config[1] = {668.inputs = dm6467_ch1_inputs,669.input_count = ARRAY_SIZE(dm6467_ch1_inputs),670},671};672673static void __init evm_init_video(void)674{675vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);676vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);677if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {678pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");679return;680}681spin_lock_init(&vpif_reg_lock);682683dm646x_setup_vpif(&dm646x_vpif_display_config,684&dm646x_vpif_capture_cfg);685}686687static void __init evm_init_i2c(void)688{689davinci_init_i2c(&i2c_pdata);690i2c_add_driver(&dm6467evm_cpld_driver);691i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));692evm_init_cpld();693evm_init_video();694}695696#define CDCE949_XIN_RATE 27000000697698/* CDCE949 support - "lpsc" field is overridden to work as clock number */699static struct clk cdce_clk_in = {700.name = "cdce_xin",701.rate = CDCE949_XIN_RATE,702};703704static struct clk_lookup cdce_clks[] = {705CLK(NULL, "xin", &cdce_clk_in),706CLK(NULL, NULL, NULL),707};708709static void __init cdce_clk_init(void)710{711struct clk_lookup *c;712struct clk *clk;713714for (c = cdce_clks; c->clk; c++) {715clk = c->clk;716clkdev_add(c);717clk_register(clk);718}719}720721static void __init davinci_map_io(void)722{723dm646x_init();724cdce_clk_init();725}726727static struct davinci_uart_config uart_config __initdata = {728.enabled_uarts = (1 << 0),729};730731#define DM646X_EVM_PHY_ID "0:01"732/*733* The following EDMA channels/slots are not being used by drivers (for734* example: Timer, GPIO, UART events etc) on dm646x, hence they are being735* reserved for codecs on the DSP side.736*/737static const s16 dm646x_dma_rsv_chans[][2] = {738/* (offset, number) */739{ 0, 4},740{13, 3},741{24, 4},742{30, 2},743{54, 3},744{-1, -1}745};746747static const s16 dm646x_dma_rsv_slots[][2] = {748/* (offset, number) */749{ 0, 4},750{13, 3},751{24, 4},752{30, 2},753{54, 3},754{128, 384},755{-1, -1}756};757758static struct edma_rsv_info dm646x_edma_rsv[] = {759{760.rsv_chans = dm646x_dma_rsv_chans,761.rsv_slots = dm646x_dma_rsv_slots,762},763};764765static __init void evm_init(void)766{767struct davinci_soc_info *soc_info = &davinci_soc_info;768769evm_init_i2c();770davinci_serial_init(&uart_config);771dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);772dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);773774if (machine_is_davinci_dm6467tevm())775davinci_nand_data.timing = &dm6467tevm_nandflash_timing;776777platform_device_register(&davinci_nand_device);778779dm646x_init_edma(dm646x_edma_rsv);780781if (HAS_ATA)782davinci_init_ide();783784soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID;785}786787#define DM646X_EVM_REF_FREQ 27000000788#define DM6467T_EVM_REF_FREQ 33000000789790void __init dm646x_board_setup_refclk(struct clk *clk)791{792if (machine_is_davinci_dm6467tevm())793clk->rate = DM6467T_EVM_REF_FREQ;794else795clk->rate = DM646X_EVM_REF_FREQ;796}797798MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")799.boot_params = (0x80000100),800.map_io = davinci_map_io,801.init_irq = davinci_irq_init,802.timer = &davinci_timer,803.init_machine = evm_init,804MACHINE_END805806MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")807.boot_params = (0x80000100),808.map_io = davinci_map_io,809.init_irq = davinci_irq_init,810.timer = &davinci_timer,811.init_machine = evm_init,812MACHINE_END813814815816