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13e1f0440e
linux-next/arch/arm/mach-davinci/board-da830-evm.c
Steve Chen 13e1f0440e davinci: Add LCD Graphics support for DA830/OMAP-L137 EVM 
Add graphics support for the Sharp LCD035Q3DG01 graphical
LCD that's on the User Interface (UI) daughter card of the
DA830/OMAP-L137 EVM.

The LCD shares EMIFA lines with the NAND and NOR devices that
are also on the UI card so those lines are shared via a couple
of muxes.  The muxes are controlled by the 'MUX_MODE' line on
the UI card.  The 'MUX_MODE' line is controlled by pin P6 of
a pcf8574 i2c expander that's at i2c address 0x3f on UI card.
The i2c expander is controlled using the gpio infrastructure
from the board code using the 'setup()' and 'teardown()'
routines.

Signed-off-by: Steve Chen <schen@mvista.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-25 10:21:23 -08:00

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/*
* TI DA830/OMAP L137 EVM board
*
* Author: Mark A. Greer <mgreer@mvista.com>
* Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
*
* 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/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/i2c/at24.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/mux.h>
#include <mach/gpio.h>
#include <mach/da8xx.h>
#include <mach/asp.h>
#define DA830_EVM_PHY_MASK 0x0
#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
static struct at24_platform_data da830_evm_i2c_eeprom_info = {
.byte_len = SZ_256K / 8,
.page_size = 64,
.flags = AT24_FLAG_ADDR16,
.setup = davinci_get_mac_addr,
.context = (void *)0x7f00,
};
static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
unsigned ngpio, void *context)
{
gpio_request(gpio + 6, "MUX_MODE");
#ifdef CONFIG_DA830_UI_LCD
gpio_direction_output(gpio + 6, 0);
#else /* Must be NAND or NOR */
gpio_direction_output(gpio + 6, 1);
#endif
return 0;
}
static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
unsigned ngpio, void *context)
{
gpio_free(gpio + 6);
return 0;
}
static struct pcf857x_platform_data da830_evm_ui_expander_info = {
.gpio_base = DAVINCI_N_GPIO,
.setup = da830_evm_ui_expander_setup,
.teardown = da830_evm_ui_expander_teardown,
};
static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
{
I2C_BOARD_INFO("24c256", 0x50),
.platform_data = &da830_evm_i2c_eeprom_info,
},
{
I2C_BOARD_INFO("tlv320aic3x", 0x18),
},
{
I2C_BOARD_INFO("pcf8574", 0x3f),
.platform_data = &da830_evm_ui_expander_info,
},
};
static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
};
static struct davinci_uart_config da830_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
static const short da830_evm_mcasp1_pins[] = {
DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
DA830_AXR1_11,
-1
};
static u8 da830_iis_serializer_direction[] = {
RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
};
static struct snd_platform_data da830_evm_snd_data = {
.tx_dma_offset = 0x2000,
.rx_dma_offset = 0x2000,
.op_mode = DAVINCI_MCASP_IIS_MODE,
.num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
.tdm_slots = 2,
.serial_dir = da830_iis_serializer_direction,
.eventq_no = EVENTQ_0,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 1,
};
/*
* GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
*/
static const short da830_evm_mmc_sd_pins[] = {
DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
-1
};
#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
static int da830_evm_mmc_get_ro(int index)
{
return gpio_get_value(DA830_MMCSD_WP_PIN);
}
static struct davinci_mmc_config da830_evm_mmc_config = {
.get_ro = da830_evm_mmc_get_ro,
.wires = 4,
.version = MMC_CTLR_VERSION_2,
};
static inline void da830_evm_init_mmc(void)
{
int ret;
ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
if (ret) {
pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
ret);
return;
}
ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
if (ret) {
pr_warning("da830_evm_init: can not open GPIO %d\n",
DA830_MMCSD_WP_PIN);
return;
}
gpio_direction_input(DA830_MMCSD_WP_PIN);
ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
if (ret) {
pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
ret);
gpio_free(DA830_MMCSD_WP_PIN);
}
}
static __init void da830_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
int ret;
ret = da8xx_register_edma();
if (ret)
pr_warning("da830_evm_init: edma registration failed: %d\n",
ret);
ret = da8xx_pinmux_setup(da830_i2c0_pins);
if (ret)
pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
ret);
ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
if (ret)
pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
ret);
soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
soc_info->emac_pdata->rmii_en = 1;
ret = da8xx_pinmux_setup(da830_cpgmac_pins);
if (ret)
pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
ret);
ret = da8xx_register_emac();
if (ret)
pr_warning("da830_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);
davinci_serial_init(&da830_evm_uart_config);
i2c_register_board_info(1, da830_evm_i2c_devices,
ARRAY_SIZE(da830_evm_i2c_devices));
ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
if (ret)
pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
ret);
da8xx_register_mcasp(1, &da830_evm_snd_data);
da830_evm_init_mmc();
#ifdef CONFIG_DA830_UI_LCD
ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
if (ret)
pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
ret);
ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
if (ret)
pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
#endif
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da830_evm_console_init(void)
{
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da830_evm_console_init);
#endif
static __init void da830_evm_irq_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
soc_info->intc_irq_prios);
}
static void __init da830_evm_map_io(void)
{
da830_init();
}
MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP L137 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DA8XX_DDR_BASE + 0x100),
.map_io = da830_evm_map_io,
.init_irq = da830_evm_irq_init,
.timer = &davinci_timer,
.init_machine = da830_evm_init,
MACHINE_END
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