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/*
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* Critical Link MityOMAP-L138 SoM Baseboard initializtaion file
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* Modified for Hawker Siddeley Switchgear Demo Board
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*
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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/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/delay.h>
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#include <linux/mtd/mtd.h>
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#include <linux/usb/musb.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/setup.h>
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#include <mach/mux.h>
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#include <mach/da8xx.h>
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#include <linux/can/platform/mcp251x.h>
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//#define BASEBOARD_NAME "IndustrialIO"
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#define BASEBOARD_NAME "Hawker Siddeley Switchgear Demo Board"
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#define MSTPRI2_LCD_MASK 0x70000000
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#define MSTPRI2_LCD_SHIFT 28
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#define LCD_PRIORITY 0 /* make video output highest priority */
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#define MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
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#define MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
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#define SYSTEM_RESET GPIO_TO_PIN(5, 14)
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#define CAN_CS_N GPIO_TO_PIN(2, 15)
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#define CAN_INT_PIN GPIO_TO_PIN(2, 12)
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#define DSD1791_CS_N GPIO_TO_PIN(0, 8)
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#define KS8995_CS GPIO_TO_PIN(0, 15)
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static int baseboard_mmc_get_ro(int index)
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{
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return gpio_get_value(MMCSD_WP_PIN);
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}
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static int baseboard_mmc_get_cd(int index)
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{
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return !gpio_get_value(MMCSD_CD_PIN);
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}
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static struct davinci_mmc_config da850_mmc_config = {
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.get_ro = baseboard_mmc_get_ro,
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.get_cd = baseboard_mmc_get_cd,
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.wires = 4,
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.max_freq = 50000000,
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.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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.version = MMC_CTLR_VERSION_2,
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};
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static const short da850_mmcsd0_pins[] __initconst = {
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DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
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DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
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DA850_GPIO4_0, DA850_GPIO4_1,
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-1
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};
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static __init void baseboard_setup_mmc(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(da850_mmcsd0_pins);
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if (ret)
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pr_warning("%s: mmcsd0 mux setup failed: %d\n", __func__, ret);
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ret = gpio_request(MMCSD_CD_PIN, "MMC CD\n");
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if (ret)
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pr_warning("%s: can not open GPIO %d\n", __func__,
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MMCSD_CD_PIN);
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gpio_direction_input(MMCSD_CD_PIN);
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ret = gpio_request(MMCSD_WP_PIN, "MMC WP\n");
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if (ret)
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pr_warning("%s: can not open GPIO %d\n", __func__,
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MMCSD_WP_PIN);
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gpio_direction_input(MMCSD_WP_PIN);
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ret = da8xx_register_mmcsd0(&da850_mmc_config);
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if (ret)
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pr_warning("%s: mmcsd0 registration failed: %d\n", __func__,
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ret);
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}
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/*
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* GPIO pins, this is an exhaustive list which may be overridden by
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* other devices
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*/
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static short baseboard_gpio_pins[] __initdata = {
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DA850_GPIO0_0, DA850_GPIO0_1, DA850_GPIO0_2, DA850_GPIO0_3,
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DA850_GPIO0_4, DA850_GPIO0_5, DA850_GPIO0_6, DA850_GPIO0_7,
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DA850_GPIO0_8, DA850_GPIO0_9, DA850_GPIO0_10, DA850_GPIO0_11,
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DA850_GPIO0_12, DA850_GPIO0_13, DA850_GPIO0_14,DA850_GPIO0_15, //used for CS on KSZ8995MA
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DA850_GPIO2_12, DA850_GPIO2_15, -1,
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};
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/* davinci da850 evm audio machine driver */
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static u8 da850_iis_serializer_direction[] = {
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INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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};
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static struct snd_platform_data baseboard_snd_data = {
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.tx_dma_offset = 0x2000,
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.rx_dma_offset = 0x2000,
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.op_mode = DAVINCI_MCASP_IIS_MODE,
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.num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
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.tdm_slots = 0,
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.serial_dir = da850_iis_serializer_direction,
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.asp_chan_q = EVENTQ_1,
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.version = MCASP_VERSION_2,
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.txnumevt = 0,
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.rxnumevt = 0,
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};
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static short baseboard_mcasp_pins[25] __initdata = {
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DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
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DA850_AHCLKR, DA850_ACLKR, DA850_AFSR,
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DA850_AMUTE, DA850_GPIO5_14,
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-1, -1, -1, -1,
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-1, -1, -1, -1,
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-1, -1, -1, -1,
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-1, -1, -1, -1,
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-1
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};
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static __init int baseboard_setup_mcasp(void)
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{
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int ret;
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baseboard_mcasp_pins[8+0] = DA850_AXR_15;
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da850_iis_serializer_direction[15] = TX_MODE;
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ret = davinci_cfg_reg_list(baseboard_mcasp_pins);
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if (ret)
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pr_warning("%s: mcasp mux setup failed: %d\n", __func__, ret);
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ret = gpio_request(SYSTEM_RESET, "SYSTEM RESET\n");
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if (ret)
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pr_warning("%s: can't open GPIO %d\n", __func__, SYSTEM_RESET);
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msleep(20);
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gpio_direction_output(SYSTEM_RESET, 0);
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msleep(20);
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gpio_set_value(SYSTEM_RESET, 1);
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baseboard_snd_data.tdm_slots = 2;
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baseboard_snd_data.txnumevt = 1;
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da8xx_register_mcasp(0, &baseboard_snd_data);
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return ret;
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}
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static const struct display_panel disp_panel = {
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QVGA,
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16,
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16,
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COLOR_ACTIVE,
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};
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static struct lcd_ctrl_config lcd_cfg = {
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&disp_panel,
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.ac_bias = 255,
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.ac_bias_intrpt = 0,
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.dma_burst_sz = 16,
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.bpp = 16,
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.fdd = 255,
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.tft_alt_mode = 0,
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.stn_565_mode = 0,
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.mono_8bit_mode = 0,
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.invert_line_clock = 0,
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.invert_frm_clock = 0,
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.sync_edge = 0,
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.sync_ctrl = 1,
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.raster_order = 0,
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};
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static struct da8xx_lcdc_platform_data sharp_lq035q7dh06_pdata = {
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.manu_name = "sharp",
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.controller_data = &lcd_cfg,
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.type = "Sharp_LQ035Q7DH06",
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};
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static struct da8xx_lcdc_platform_data chimei_p0430wqlb_pdata = {
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.manu_name = "ChiMei",
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.controller_data = &lcd_cfg,
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.type = "ChiMei_P0430WQLB",
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};
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static struct da8xx_lcdc_platform_data vga_640x480_pdata = {
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.manu_name = "VGA",
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.controller_data = &lcd_cfg,
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.type = "vga_640x480",
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};
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static struct da8xx_lcdc_platform_data wvga_800x480_pdata = {
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.manu_name = "WVGA",
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.controller_data = &lcd_cfg,
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.type = "wvga_800x480",
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};
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static struct da8xx_lcdc_platform_data svga_800x600_pdata = {
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.manu_name = "SVGA",
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.controller_data = &lcd_cfg,
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.type = "svga_800x600",
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};
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static struct da8xx_lcdc_platform_data nec_nl4827hc19_pdata = {
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.manu_name = "NEC",
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.controller_data = &lcd_cfg,
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.type = "NEC_NL4827HC19-05B",
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};
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static __init void baseboard_setup_lcd(const char *panel)
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{
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int ret;
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struct da8xx_lcdc_platform_data *pdata;
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u32 prio;
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/* set peripheral master priority up to 1 */
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prio = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_MSTPRI2_REG));
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prio &= ~MSTPRI2_LCD_MASK;
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prio |= LCD_PRIORITY<<MSTPRI2_LCD_SHIFT;
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__raw_writel(prio, DA8XX_SYSCFG0_VIRT(DA8XX_MSTPRI2_REG));
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if (!strcmp("Sharp_LQ035Q7DH06", panel))
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pdata = &sharp_lq035q7dh06_pdata;
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else if (!strcmp("ChiMei_P0430WQLB", panel))
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pdata = &chimei_p0430wqlb_pdata;
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else if (!strcmp("vga_640x480", panel))
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pdata = &vga_640x480_pdata;
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else if (!strcmp("wvga_800x480", panel))
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pdata = &wvga_800x480_pdata;
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else if (!strcmp("svga_800x600", panel))
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pdata = &svga_800x600_pdata;
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else if (!strcmp("NEC_NL4827HC19-05B", panel)) {
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pdata = &nec_nl4827hc19_pdata;
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lcd_cfg.invert_line_clock = 1;
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lcd_cfg.invert_frm_clock = 1;
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} else {
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pr_warning("%s: unknown LCD type : %s\n", __func__,
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panel);
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return;
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}
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ret = davinci_cfg_reg_list(da850_lcdcntl_pins);
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if (ret) {
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pr_warning("%s: lcd pinmux failed : %d\n", __func__,
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ret);
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return;
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}
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ret = da8xx_register_lcdc(pdata);
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}
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#ifdef CONFIG_MTD
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#define OFFSET_LCDCONFIG 0260
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#define LCDCONFIG_LEN 33
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static void baseboard_mtd_notify(struct mtd_info *mtd)
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{
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int retlen;
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char buf[LCDCONFIG_LEN]; /* enable, manufacturer name */
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if (!strcmp(mtd->name, "periph-config")) {
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mtd->_read(mtd, OFFSET_LCDCONFIG, LCDCONFIG_LEN, &retlen,
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buf);
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if (retlen == LCDCONFIG_LEN) {
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if (buf[0]) {
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buf[LCDCONFIG_LEN-1] = 0;
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pr_info("Using LCD panel: %s\n", &buf[1]);
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baseboard_setup_lcd(&buf[1]);
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} else
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pr_info("No LCD configured\n");
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}
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}
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}
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static struct mtd_notifier baseboard_spi_notifier = {
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.add = baseboard_mtd_notify,
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};
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static void baseboard_mtd_notify_add(void)
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{
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register_mtd_user(&baseboard_spi_notifier);
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}
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#else
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static void baseboard_mtd_notify_add(void) { }
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#endif
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static struct mcp251x_platform_data mcp2515_pdata = {
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.oscillator_frequency = 20000000,
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};
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static struct davinci_spi_config spi_mcp2515_config = {
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.io_type = SPI_IO_TYPE_DMA,
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.c2tdelay = 0,
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.t2cdelay = 0,
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};
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static struct davinci_spi_config spi_dsd1791_config = {
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.io_type = SPI_IO_TYPE_DMA,
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.c2tdelay = 0,
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.t2cdelay = 0,
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};
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static struct davinci_spi_config spi_ks8995_config = {
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.io_type = SPI_IO_TYPE_DMA,
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.c2tdelay = 0,
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.t2cdelay = 0,
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};
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static struct spi_board_info baseboard_spi1_info[] = {
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[0] = {
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.modalias = "mcp2515",
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.platform_data = &mcp2515_pdata,
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.controller_data = &spi_mcp2515_config,
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.max_speed_hz = 10000000,
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.bus_num = 1,
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.chip_select = 1,
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},
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[1] = {
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.modalias = "dsd1791",
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.controller_data = &spi_dsd1791_config,
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.max_speed_hz = 1000000,
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.bus_num = 1,
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.chip_select = 2,
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},
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[2] = {
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.modalias = "spi-ks8995",
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.controller_data = &spi_ks8995_config,
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.max_speed_hz = 1000000, //5000000,
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.bus_num = 1,
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.chip_select = 3,
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},
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};
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static u8 spi1_cs[] = {
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SPI_INTERN_CS,
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CAN_CS_N,
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DSD1791_CS_N,
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KS8995_CS,
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};
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static void __init baseboard_setup_spi(void)
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{
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int ret;
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pr_info("%s: Entered\n", __func__);
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ret = gpio_request(CAN_CS_N, "CAN CS\n");
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if (ret)
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pr_warning("%s: can not open CAN CS %d\n", __func__, CAN_CS_N);
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ret = gpio_request(DSD1791_CS_N, "DSD1791 CS\n");
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if (ret)
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pr_warning("%s: can not open DSD1791 CS %d\n", __func__, DSD1791_CS_N);
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ret = gpio_request(KS8995_CS, "KS8995 CS\n");
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if (ret)
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pr_warning("%s: can not open KS8995 CS %d\n", __func__, KS8995_CS);
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// gpio_direction_output(KS8995_CS,0);
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// gpio_set_value(KS8995_CS,1);
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baseboard_spi1_info[0].irq = gpio_to_irq(CAN_INT_PIN);
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ret = spi_register_board_info(baseboard_spi1_info, ARRAY_SIZE(baseboard_spi1_info));
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if (ret)
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pr_warning("%s: Unable to register SPI1 Info: %d\n", __func__,
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ret);
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pr_info("%s: Exit\n", __func__);
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}
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static int __init baseboard_pre_init(void)
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{
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pr_info("%s: Entered\n", __func__);
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da8xx_spi_pdata[1].chip_sel = spi1_cs;
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da8xx_spi_pdata[1].num_chipselect = ARRAY_SIZE(spi1_cs);
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davinci_soc_info.emac_pdata->phy_id = "";
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return 0;
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}
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postcore_initcall_sync(baseboard_pre_init);
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static int __init baseboard_init(void)
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{
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pr_info("%s [%s]...\n", __func__, BASEBOARD_NAME);
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davinci_cfg_reg_list(baseboard_gpio_pins);
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baseboard_setup_mmc();
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baseboard_setup_spi();
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baseboard_setup_mcasp();
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baseboard_mtd_notify_add();
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mityomapl138_usb_init(MUSB_OTG);
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return 0;
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}
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arch_initcall_sync(baseboard_init);
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