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davinci: Add platform support for da850/omap-l138 GLCD

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This patch adds platform support for the graphic display
(Sharp LK043T1DG01) found on DA850/OMAP-L138 based EVM.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Sudhakar Rajashekhara 2009-08-13 14:33:14 -04:00 committed by Kevin Hilman
parent b1466376b2
commit 5cbdf276bd
5 changed files with 180 additions and 0 deletions
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50
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -17,6 +17,7 @@
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -29,6 +30,9 @@
#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)
static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
@ -59,6 +63,37 @@ static struct snd_platform_data da850_evm_snd_data = {
.rxnumevt = 1,
};
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)
{
@ -115,6 +150,21 @@ static __init void da850_evm_init(void)
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

42
arch/arm/mach-davinci/da850.c
View File

@ -297,6 +297,13 @@ static struct clk mcasp_clk = {
.psc_ctlr = 1,
};
static struct clk lcdc_clk = {
.name = "lcdc",
.parent = &pll0_sysclk2,
.lpsc = DA8XX_LPSC1_LCDC,
.psc_ctlr = 1,
};
static struct davinci_clk da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@ -335,6 +342,7 @@ static struct davinci_clk da850_clks[] = {
CLK(NULL, "rmii", &rmii_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
CLK(NULL, NULL, NULL),
};
@ -405,6 +413,30 @@ static const struct mux_config da850_pins[] = {
MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
/* LCD function */
MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
/* GPIO function */
MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
MUX_CFG(DA850, GPIO8_10, 18, 28, 15, 8, false)
#endif
};
@ -449,6 +481,16 @@ const short da850_mcasp_pins[] __initdata = {
-1
};
const short da850_lcdcntl_pins[] __initdata = {
DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3, DA850_LCD_D_4,
DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7, DA850_LCD_D_8,
DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11, DA850_LCD_D_12,
DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15, DA850_LCD_PCLK,
DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS, DA850_GPIO2_15,
DA850_GPIO8_10,
-1
};
/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
[IRQ_DA8XX_COMMTX] = 7,

59
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -21,6 +21,7 @@
#include <mach/common.h>
#include <mach/time.h>
#include <mach/da8xx.h>
#include <video/da8xx-fb.h>
#include "clock.h"
@ -353,3 +354,61 @@ void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata)
platform_device_register(&da850_mcasp_device);
}
}
static const struct display_panel disp_panel = {
QVGA,
16,
16,
COLOR_ACTIVE,
};
static struct lcd_ctrl_config lcd_cfg = {
&disp_panel,
.ac_bias = 255,
.ac_bias_intrpt = 0,
.dma_burst_sz = 16,
.bpp = 16,
.fdd = 255,
.tft_alt_mode = 0,
.stn_565_mode = 0,
.mono_8bit_mode = 0,
.invert_line_clock = 1,
.invert_frm_clock = 1,
.sync_edge = 0,
.sync_ctrl = 1,
.raster_order = 0,
};
static struct da8xx_lcdc_platform_data da850_evm_lcdc_pdata = {
.manu_name = "sharp",
.controller_data = &lcd_cfg,
.type = "Sharp_LK043T1DG01",
};
static struct resource da8xx_lcdc_resources[] = {
[0] = { /* registers */
.start = DA8XX_LCD_CNTRL_BASE,
.end = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = { /* interrupt */
.start = IRQ_DA8XX_LCDINT,
.end = IRQ_DA8XX_LCDINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da850_lcdc_device = {
.name = "da8xx_lcdc",
.id = 0,
.num_resources = ARRAY_SIZE(da8xx_lcdc_resources),
.resource = da8xx_lcdc_resources,
.dev = {
.platform_data = &da850_evm_lcdc_pdata,
}
};
int __init da8xx_register_lcdc(void)
{
return platform_device_register(&da850_lcdc_device);
}

3
arch/arm/mach-davinci/include/mach/da8xx.h
View File

@ -37,6 +37,7 @@
#define DA8XX_TIMER64P1_BASE 0x01c21000
#define DA8XX_GPIO_BASE 0x01e26000
#define DA8XX_PSC1_BASE 0x01e27000
#define DA8XX_LCD_CNTRL_BASE 0x01e13000
#define PINMUX0 0x00
#define PINMUX1 0x04
@ -66,6 +67,7 @@ int da8xx_register_edma(void);
int da8xx_register_i2c(int instance, struct davinci_i2c_platform_data *pdata);
int da8xx_register_watchdog(void);
int da8xx_register_emac(void);
int da8xx_register_lcdc(void);
void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata);
extern struct platform_device da8xx_serial_device;
@ -103,6 +105,7 @@ extern const short da850_i2c0_pins[];
extern const short da850_i2c1_pins[];
extern const short da850_cpgmac_pins[];
extern const short da850_mcasp_pins[];
extern const short da850_lcdcntl_pins[];
int da8xx_pinmux_setup(const short pins[]);

26
arch/arm/mach-davinci/include/mach/mux.h
View File

@ -775,6 +775,32 @@ enum davinci_da850_index {
DA850_AXR_2,
DA850_AXR_1,
DA850_AXR_0,
/* LCD function */
DA850_LCD_D_7,
DA850_LCD_D_6,
DA850_LCD_D_5,
DA850_LCD_D_4,
DA850_LCD_D_3,
DA850_LCD_D_2,
DA850_LCD_D_1,
DA850_LCD_D_0,
DA850_LCD_D_15,
DA850_LCD_D_14,
DA850_LCD_D_13,
DA850_LCD_D_12,
DA850_LCD_D_11,
DA850_LCD_D_10,
DA850_LCD_D_9,
DA850_LCD_D_8,
DA850_LCD_PCLK,
DA850_LCD_HSYNC,
DA850_LCD_VSYNC,
DA850_NLCD_AC_ENB_CS,
/* GPIO function */
DA850_GPIO2_15,
DA850_GPIO8_10,
};
#ifdef CONFIG_DAVINCI_MUX