/*
* TI DA850/OMAP-L138 EVM board
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
*
* Derived from: arch/arm/mach-davinci/board-da830-evm.c
* Original Copyrights follow:
*
* 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <mach/nand.h>
#define DA850_EVM_PHY_MASK 0x1
#define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
#define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
#define DA850_LCD_PWR_PIN GPIO_TO_PIN(8, 10)
#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
* (128K blocks). It may be used instead of the (default) SPI flash
* to boot, using TI's tools to install the secondary boot loader
* (UBL) and U-Boot.
*/
struct mtd_partition da850_evm_nandflash_partition[] = {
{
.name = "u-boot env",
.offset = 0,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "UBL",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "u-boot",
.offset = MTDPART_OFS_APPEND,
.size = 4 * SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.offset = 0x200000,
.size = SZ_2M,
.mask_flags = 0,
},
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct davinci_nand_pdata da850_evm_nandflash_data = {
.parts = da850_evm_nandflash_partition,
.nr_parts = ARRAY_SIZE(da850_evm_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
.options = NAND_USE_FLASH_BBT,
};
static struct resource da850_evm_nandflash_resource[] = {
{
.start = DA8XX_AEMIF_CS3_BASE,
.end = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = DA8XX_AEMIF_CTL_BASE,
.end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device da850_evm_nandflash_device = {
.name = "davinci_nand",
.id = 1,
.dev = {
.platform_data = &da850_evm_nandflash_data,
},
.num_resources = ARRAY_SIZE(da850_evm_nandflash_resource),
.resource = da850_evm_nandflash_resource,
};
static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
};
static struct davinci_uart_config da850_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
static struct platform_device *da850_evm_devices[] __initdata = {
&da850_evm_nandflash_device,
};
/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE,
RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
};
static struct snd_platform_data da850_evm_snd_data = {
.tx_dma_offset = 0x2000,
.rx_dma_offset = 0x2000,
.op_mode = DAVINCI_MCASP_IIS_MODE,
.num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
.tdm_slots = 2,
.serial_dir = da850_iis_serializer_direction,
.eventq_no = EVENTQ_1,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 1,
};
static int da850_evm_mmc_get_ro(int index)
{
return gpio_get_value(DA850_MMCSD_WP_PIN);
}
static int da850_evm_mmc_get_cd(int index)
{
return !gpio_get_value(DA850_MMCSD_CD_PIN);
}
static struct davinci_mmc_config da850_mmc_config = {
.get_ro = da850_evm_mmc_get_ro,
.get_cd = da850_evm_mmc_get_cd,
.wires = 4,
.version = MMC_CTLR_VERSION_2,
};
static int da850_lcd_hw_init(void)
{
int status;
status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
if (status < 0)
return status;
status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
if (status < 0) {
gpio_free(DA850_LCD_BL_PIN);
return status;
}
gpio_direction_output(DA850_LCD_BL_PIN, 0);
gpio_direction_output(DA850_LCD_PWR_PIN, 0);
/* disable lcd backlight */
gpio_set_value(DA850_LCD_BL_PIN, 0);
/* disable lcd power */
gpio_set_value(DA850_LCD_PWR_PIN, 0);
/* enable lcd power */
gpio_set_value(DA850_LCD_PWR_PIN, 1);
/* enable lcd backlight */
gpio_set_value(DA850_LCD_BL_PIN, 1);
return 0;
}
static __init void da850_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
int ret;
ret = da8xx_pinmux_setup(da850_nand_pins);
if (ret)
pr_warning("da850_evm_init: nand mux setup failed: %d\n",
ret);
platform_add_devices(da850_evm_devices,
ARRAY_SIZE(da850_evm_devices));
ret = da8xx_register_edma();
if (ret)
pr_warning("da850_evm_init: edma registration failed: %d\n",
ret);
ret = da8xx_pinmux_setup(da850_i2c0_pins);
if (ret)
pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
ret);
ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
if (ret)
pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
ret);
soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
soc_info->emac_pdata->rmii_en = 0;
ret = da8xx_pinmux_setup(da850_cpgmac_pins);
if (ret)
pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n",
ret);
ret = da8xx_register_emac();
if (ret)
pr_warning("da850_evm_init: emac registration failed: %d\n",
ret);
ret = da8xx_register_watchdog();
if (ret)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
ret = da8xx_pinmux_setup(da850_mmcsd0_pins);
if (ret)
pr_warning("da850_evm_init: mmcsd0 mux setup failed: %d\n",
ret);
ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
if (ret)
pr_warning("da850_evm_init: can not open GPIO %d\n",
DA850_MMCSD_CD_PIN);
gpio_direction_input(DA850_MMCSD_CD_PIN);
ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
if (ret)
pr_warning("da850_evm_init: can not open GPIO %d\n",
DA850_MMCSD_WP_PIN);
gpio_direction_input(DA850_MMCSD_WP_PIN);
ret = da8xx_register_mmcsd0(&da850_mmc_config);
if (ret)
pr_warning("da850_evm_init: mmcsd0 registration failed: %d\n",
ret);
davinci_serial_init(&da850_evm_uart_config);
/*
* shut down uart 0 and 1; they are not used on the board and
* accessing them causes endless "too much work in irq53" messages
* with arago fs
*/
__raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
__raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
ret = da8xx_pinmux_setup(da850_mcasp_pins);
if (ret)
pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
ret);
da8xx_init_mcasp(0, &da850_evm_snd_data);
ret = da8xx_pinmux_setup(da850_lcdcntl_pins);
if (ret)
pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
ret);
ret = da850_lcd_hw_init();
if (ret)
pr_warning("da850_evm_init: lcd initialization failed: %d\n",
ret);
ret = da8xx_register_lcdc();
if (ret)
pr_warning("da850_evm_init: lcdc registration failed: %d\n",
ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif
static __init void da850_evm_irq_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
soc_info->intc_irq_prios);
}
static void __init da850_evm_map_io(void)
{
da850_init();
}
MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DA8XX_DDR_BASE + 0x100),
.map_io = da850_evm_map_io,
.init_irq = da850_evm_irq_init,
.timer = &davinci_timer,
.init_machine = da850_evm_init,
MACHINE_END
