Browse Source

MLK-13499 imx6sll: add epdc splash screen support

add splash screen feature for epdc.
it's tested on imx6sll arm2 board and evk board.

Signed-off-by: Robby Cai <robby.cai@nxp.com>
(cherry picked from commit c85c6f2a0f)
imx_v2016.03_4.1.15_2.0.0_ga
Robby Cai 4 years ago
parent
commit
47da04abb2
6 changed files with 458 additions and 4 deletions
  1. +3
    -1
      arch/arm/cpu/armv7/mx6/clock.c
  2. +221
    -0
      board/freescale/mx6sll_arm2/mx6sll_arm2.c
  3. +221
    -0
      board/freescale/mx6sllevk/mx6sllevk.c
  4. +5
    -0
      configs/mx6sll_lpddr3_arm2_epdc_defconfig
  5. +5
    -0
      configs/mx6sllevk_epdc_defconfig
  6. +3
    -3
      include/mxc_epdc_fb.h

+ 3
- 1
arch/arm/cpu/armv7/mx6/clock.c View File

@ -1494,7 +1494,8 @@ void enable_ipu_clock(void)
}
}
#if defined(CONFIG_MXC_EPDC) && defined(CONFIG_MX6ULL)
#if defined(CONFIG_MXC_EPDC)
#if defined(CONFIG_MX6ULL) || defined(CONFIG_MX6SLL)
void enable_epdc_clock(void)
{
u32 reg = 0;
@ -1522,6 +1523,7 @@ void enable_epdc_clock(void)
setbits_le32(&imx_ccm->CCGR3, MXC_CCM_CCGR3_EPDC_CLK_ENABLE_MASK);
}
#endif
#endif
/***************************************************/


+ 221
- 0
board/freescale/mx6sll_arm2/mx6sll_arm2.c View File

@ -30,6 +30,10 @@
#include "../common/pfuze.h"
#include <usb.h>
#include <usb/ehci-fsl.h>
#if defined(CONFIG_MXC_EPDC)
#include <lcd.h>
#include <mxc_epdc_fb.h>
#endif
#include <asm/imx-common/video.h>
DECLARE_GLOBAL_DATA_PTR;
@ -64,6 +68,9 @@ DECLARE_GLOBAL_DATA_PTR;
#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
#define EPDC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC and EPD */
@ -425,6 +432,215 @@ struct display_info_t const displays[] = {{
size_t display_count = ARRAY_SIZE(displays);
#endif
#ifdef CONFIG_MXC_EPDC
static iomux_v3_cfg_t const epdc_enable_pads[] = {
MX6_PAD_EPDC_DATA00__EPDC_DATA00 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA01__EPDC_DATA01 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA02__EPDC_DATA02 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA03__EPDC_DATA03 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA04__EPDC_DATA04 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA05__EPDC_DATA05 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA06__EPDC_DATA06 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA07__EPDC_DATA07 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA08__EPDC_DATA08 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA09__EPDC_DATA09 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA10__EPDC_DATA10 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA11__EPDC_DATA11 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA12__EPDC_DATA12 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA13__EPDC_DATA13 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA14__EPDC_DATA14 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA15__EPDC_DATA15 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDCLK__EPDC_SDCLK_P | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDLE__EPDC_SDLE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDOE__EPDC_SDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDSHR__EPDC_SDSHR | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDCE0__EPDC_SDCE0 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDCLK__EPDC_GDCLK | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDOE__EPDC_GDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDRL__EPDC_GDRL | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDSP__EPDC_GDSP | MUX_PAD_CTRL(EPDC_PAD_CTRL),
};
static iomux_v3_cfg_t const epdc_disable_pads[] = {
MX6_PAD_EPDC_DATA01__GPIO1_IO08,
MX6_PAD_EPDC_DATA02__GPIO1_IO09,
MX6_PAD_EPDC_DATA03__GPIO1_IO10,
MX6_PAD_EPDC_DATA04__GPIO1_IO11,
MX6_PAD_EPDC_DATA05__GPIO1_IO12,
MX6_PAD_EPDC_DATA06__GPIO1_IO13,
MX6_PAD_EPDC_DATA07__GPIO1_IO14,
MX6_PAD_EPDC_DATA08__GPIO1_IO15,
MX6_PAD_EPDC_DATA09__GPIO1_IO16,
MX6_PAD_EPDC_DATA10__GPIO1_IO17,
MX6_PAD_EPDC_DATA11__GPIO1_IO18,
MX6_PAD_EPDC_DATA12__GPIO1_IO19,
MX6_PAD_EPDC_DATA13__GPIO1_IO20,
MX6_PAD_EPDC_DATA14__GPIO1_IO21,
MX6_PAD_EPDC_DATA15__GPIO1_IO22,
MX6_PAD_EPDC_SDCLK__GPIO1_IO23,
MX6_PAD_EPDC_SDLE__GPIO1_IO24,
MX6_PAD_EPDC_SDOE__GPIO1_IO25,
MX6_PAD_EPDC_SDSHR__GPIO1_IO26,
MX6_PAD_EPDC_SDCE0__GPIO1_IO27,
MX6_PAD_EPDC_GDCLK__GPIO1_IO31,
MX6_PAD_EPDC_GDOE__GPIO2_IO00,
MX6_PAD_EPDC_GDRL__GPIO2_IO01,
MX6_PAD_EPDC_GDSP__GPIO2_IO02,
};
vidinfo_t panel_info = {
.vl_refresh = 85,
.vl_col = 1024,
.vl_row = 758,
.vl_pixclock = 40000000,
.vl_left_margin = 12,
.vl_right_margin = 76,
.vl_upper_margin = 4,
.vl_lower_margin = 5,
.vl_hsync = 12,
.vl_vsync = 2,
.vl_sync = 0,
.vl_mode = 0,
.vl_flag = 0,
.vl_bpix = 3,
.cmap = 0,
};
struct epdc_timing_params panel_timings = {
.vscan_holdoff = 4,
.sdoed_width = 10,
.sdoed_delay = 20,
.sdoez_width = 10,
.sdoez_delay = 20,
.gdclk_hp_offs = 524,
.gdsp_offs = 327,
.gdoe_offs = 0,
.gdclk_offs = 19,
.num_ce = 1,
};
static void setup_epdc_power(void)
{
/* Setup epdc voltage */
/* EPDC_PWRSTAT - GPIO2[13] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_STAT__GPIO2_IO13 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(2, 13));
/* EPDC_VCOM0 - GPIO2[03] for VCOM control */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_VCOM0__GPIO2_IO03 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 3), 1);
/* EPDC_PWRWAKEUP - GPIO2[14] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_WAKE__GPIO2_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 14), 1);
/* EPDC_PWRCTRL0 - GPIO2[07] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_CTRL0__GPIO2_IO07 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 7), 1);
}
static void epdc_enable_pins(void)
{
/* epdc iomux settings */
imx_iomux_v3_setup_multiple_pads(epdc_enable_pads,
ARRAY_SIZE(epdc_enable_pads));
}
static void epdc_disable_pins(void)
{
/* Configure MUX settings for EPDC pins to GPIO and drive to 0 */
imx_iomux_v3_setup_multiple_pads(epdc_disable_pads,
ARRAY_SIZE(epdc_disable_pads));
}
static void setup_epdc(void)
{
/*** epdc Maxim PMIC settings ***/
/* EPDC_PWRSTAT - GPIO2[13] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_STAT__GPIO2_IO13 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_VCOM0 - GPIO2[03] for VCOM control */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_VCOM0__GPIO2_IO03 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRWAKEUP - GPIO2[14] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_WAKE__GPIO2_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRCTRL0 - GPIO2[07] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_CTRL0__GPIO2_IO07 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set pixel clock rates for EPDC in clock.c */
panel_info.epdc_data.wv_modes.mode_init = 0;
panel_info.epdc_data.wv_modes.mode_du = 1;
panel_info.epdc_data.wv_modes.mode_gc4 = 3;
panel_info.epdc_data.wv_modes.mode_gc8 = 2;
panel_info.epdc_data.wv_modes.mode_gc16 = 2;
panel_info.epdc_data.wv_modes.mode_gc32 = 2;
panel_info.epdc_data.epdc_timings = panel_timings;
setup_epdc_power();
}
void epdc_power_on(void)
{
unsigned int reg;
struct gpio_regs *gpio_regs = (struct gpio_regs *)GPIO2_BASE_ADDR;
/* Set EPD_PWR_CTL0 to high - enable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(2, 7), 1);
udelay(1000);
/* Enable epdc signal pin */
epdc_enable_pins();
/* Set PMIC Wakeup to high - enable Display power */
gpio_set_value(IMX_GPIO_NR(2, 14), 1);
/* Wait for PWRGOOD == 1 */
while (1) {
reg = readl(&gpio_regs->gpio_psr);
if (!(reg & (1 << 13)))
break;
udelay(100);
}
/* Enable VCOM */
gpio_set_value(IMX_GPIO_NR(2, 3), 1);
udelay(500);
}
void epdc_power_off(void)
{
/* Set PMIC Wakeup to low - disable Display power */
gpio_set_value(IMX_GPIO_NR(2, 14), 0);
/* Disable VCOM */
gpio_set_value(IMX_GPIO_NR(2, 3), 0);
epdc_disable_pins();
/* Set EPD_PWR_CTL0 to low - disable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(2, 7), 0);
}
#endif
#ifdef CONFIG_USB_EHCI_MX6
#define USB_OTHERREGS_OFFSET 0x800
@ -498,6 +714,11 @@ int board_init(void)
setup_spinor();
#endif
#ifdef CONFIG_MXC_EPDC
enable_epdc_clock();
setup_epdc();
#endif
return 0;
}


+ 221
- 0
board/freescale/mx6sllevk/mx6sllevk.c View File

@ -29,6 +29,10 @@
#include "../common/pfuze.h"
#include <usb.h>
#include <usb/ehci-fsl.h>
#if defined(CONFIG_MXC_EPDC)
#include <lcd.h>
#include <mxc_epdc_fb.h>
#endif
#include <asm/imx-common/video.h>
DECLARE_GLOBAL_DATA_PTR;
@ -60,6 +64,9 @@ DECLARE_GLOBAL_DATA_PTR;
#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
#define EPDC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC and EPD */
@ -392,6 +399,215 @@ struct display_info_t const displays[] = {{
size_t display_count = ARRAY_SIZE(displays);
#endif
#ifdef CONFIG_MXC_EPDC
static iomux_v3_cfg_t const epdc_enable_pads[] = {
MX6_PAD_EPDC_DATA00__EPDC_DATA00 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA01__EPDC_DATA01 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA02__EPDC_DATA02 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA03__EPDC_DATA03 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA04__EPDC_DATA04 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA05__EPDC_DATA05 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA06__EPDC_DATA06 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA07__EPDC_DATA07 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA08__EPDC_DATA08 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA09__EPDC_DATA09 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA10__EPDC_DATA10 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA11__EPDC_DATA11 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA12__EPDC_DATA12 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA13__EPDC_DATA13 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA14__EPDC_DATA14 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_DATA15__EPDC_DATA15 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDCLK__EPDC_SDCLK_P | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDLE__EPDC_SDLE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDOE__EPDC_SDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDSHR__EPDC_SDSHR | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_SDCE0__EPDC_SDCE0 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDCLK__EPDC_GDCLK | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDOE__EPDC_GDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDRL__EPDC_GDRL | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX6_PAD_EPDC_GDSP__EPDC_GDSP | MUX_PAD_CTRL(EPDC_PAD_CTRL),
};
static iomux_v3_cfg_t const epdc_disable_pads[] = {
MX6_PAD_EPDC_DATA01__GPIO1_IO08,
MX6_PAD_EPDC_DATA02__GPIO1_IO09,
MX6_PAD_EPDC_DATA03__GPIO1_IO10,
MX6_PAD_EPDC_DATA04__GPIO1_IO11,
MX6_PAD_EPDC_DATA05__GPIO1_IO12,
MX6_PAD_EPDC_DATA06__GPIO1_IO13,
MX6_PAD_EPDC_DATA07__GPIO1_IO14,
MX6_PAD_EPDC_DATA08__GPIO1_IO15,
MX6_PAD_EPDC_DATA09__GPIO1_IO16,
MX6_PAD_EPDC_DATA10__GPIO1_IO17,
MX6_PAD_EPDC_DATA11__GPIO1_IO18,
MX6_PAD_EPDC_DATA12__GPIO1_IO19,
MX6_PAD_EPDC_DATA13__GPIO1_IO20,
MX6_PAD_EPDC_DATA14__GPIO1_IO21,
MX6_PAD_EPDC_DATA15__GPIO1_IO22,
MX6_PAD_EPDC_SDCLK__GPIO1_IO23,
MX6_PAD_EPDC_SDLE__GPIO1_IO24,
MX6_PAD_EPDC_SDOE__GPIO1_IO25,
MX6_PAD_EPDC_SDSHR__GPIO1_IO26,
MX6_PAD_EPDC_SDCE0__GPIO1_IO27,
MX6_PAD_EPDC_GDCLK__GPIO1_IO31,
MX6_PAD_EPDC_GDOE__GPIO2_IO00,
MX6_PAD_EPDC_GDRL__GPIO2_IO01,
MX6_PAD_EPDC_GDSP__GPIO2_IO02,
};
vidinfo_t panel_info = {
.vl_refresh = 85,
.vl_col = 1024,
.vl_row = 758,
.vl_pixclock = 40000000,
.vl_left_margin = 12,
.vl_right_margin = 76,
.vl_upper_margin = 4,
.vl_lower_margin = 5,
.vl_hsync = 12,
.vl_vsync = 2,
.vl_sync = 0,
.vl_mode = 0,
.vl_flag = 0,
.vl_bpix = 3,
.cmap = 0,
};
struct epdc_timing_params panel_timings = {
.vscan_holdoff = 4,
.sdoed_width = 10,
.sdoed_delay = 20,
.sdoez_width = 10,
.sdoez_delay = 20,
.gdclk_hp_offs = 524,
.gdsp_offs = 327,
.gdoe_offs = 0,
.gdclk_offs = 19,
.num_ce = 1,
};
static void setup_epdc_power(void)
{
/* Setup epdc voltage */
/* EPDC_PWRSTAT - GPIO2[13] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_STAT__GPIO2_IO13 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(2, 13));
/* EPDC_VCOM0 - GPIO2[03] for VCOM control */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_VCOM0__GPIO2_IO03 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 3), 1);
/* EPDC_PWRWAKEUP - GPIO2[14] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_WAKE__GPIO2_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 14), 1);
/* EPDC_PWRCTRL0 - GPIO2[07] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_CTRL0__GPIO2_IO07 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_direction_output(IMX_GPIO_NR(2, 7), 1);
}
static void epdc_enable_pins(void)
{
/* epdc iomux settings */
imx_iomux_v3_setup_multiple_pads(epdc_enable_pads,
ARRAY_SIZE(epdc_enable_pads));
}
static void epdc_disable_pins(void)
{
/* Configure MUX settings for EPDC pins to GPIO and drive to 0 */
imx_iomux_v3_setup_multiple_pads(epdc_disable_pads,
ARRAY_SIZE(epdc_disable_pads));
}
static void setup_epdc(void)
{
/*** epdc Maxim PMIC settings ***/
/* EPDC_PWRSTAT - GPIO2[13] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_STAT__GPIO2_IO13 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_VCOM0 - GPIO2[03] for VCOM control */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_VCOM0__GPIO2_IO03 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRWAKEUP - GPIO2[14] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_WAKE__GPIO2_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRCTRL0 - GPIO2[07] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX6_PAD_EPDC_PWR_CTRL0__GPIO2_IO07 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set pixel clock rates for EPDC in clock.c */
panel_info.epdc_data.wv_modes.mode_init = 0;
panel_info.epdc_data.wv_modes.mode_du = 1;
panel_info.epdc_data.wv_modes.mode_gc4 = 3;
panel_info.epdc_data.wv_modes.mode_gc8 = 2;
panel_info.epdc_data.wv_modes.mode_gc16 = 2;
panel_info.epdc_data.wv_modes.mode_gc32 = 2;
panel_info.epdc_data.epdc_timings = panel_timings;
setup_epdc_power();
}
void epdc_power_on(void)
{
unsigned int reg;
struct gpio_regs *gpio_regs = (struct gpio_regs *)GPIO2_BASE_ADDR;
/* Set EPD_PWR_CTL0 to high - enable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(2, 7), 1);
udelay(1000);
/* Enable epdc signal pin */
epdc_enable_pins();
/* Set PMIC Wakeup to high - enable Display power */
gpio_set_value(IMX_GPIO_NR(2, 14), 1);
/* Wait for PWRGOOD == 1 */
while (1) {
reg = readl(&gpio_regs->gpio_psr);
if (!(reg & (1 << 13)))
break;
udelay(100);
}
/* Enable VCOM */
gpio_set_value(IMX_GPIO_NR(2, 3), 1);
udelay(500);
}
void epdc_power_off(void)
{
/* Set PMIC Wakeup to low - disable Display power */
gpio_set_value(IMX_GPIO_NR(2, 14), 0);
/* Disable VCOM */
gpio_set_value(IMX_GPIO_NR(2, 3), 0);
epdc_disable_pins();
/* Set EPD_PWR_CTL0 to low - disable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(2, 7), 0);
}
#endif
#ifdef CONFIG_USB_EHCI_MX6
#define USB_OTHERREGS_OFFSET 0x800
@ -463,6 +679,11 @@ int board_init(void)
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
#endif
#ifdef CONFIG_MXC_EPDC
enable_epdc_clock();
setup_epdc();
#endif
return 0;
}


+ 5
- 0
configs/mx6sll_lpddr3_arm2_epdc_defconfig View File

@ -0,0 +1,5 @@
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6sll_arm2/imximage.cfg,MXC_EPDC"
CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_TARGET_MX6SLL_ARM2=y
CONFIG_CMD_GPIO=y

+ 5
- 0
configs/mx6sllevk_epdc_defconfig View File

@ -0,0 +1,5 @@
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6sllevk/imximage.cfg,MXC_EPDC"
CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_TARGET_MX6SLLEVK=y
CONFIG_CMD_GPIO=y

+ 3
- 3
include/mxc_epdc_fb.h View File

@ -193,7 +193,7 @@
#define EPDC_PIGEON_16_0 0xC00
#define EPDC_PIGEON_16_1 0xC10
#define EPDC_PIGEON_16_2 0xC20
#if defined(CONFIG_MX7) || defined(CONFIG_MX6ULL)
#if defined(CONFIG_MX7) || defined(CONFIG_MX6ULL) || defined(CONFIG_MX6SLL)
#define EPDC_WB_ADDR_TCE 0x010
#else
#define EPDC_WB_ADDR_TCE 0xC10
@ -306,7 +306,7 @@ enum {
/* EPDC_UPD_CTRL field values */
EPDC_UPD_CTRL_USE_FIXED = 0x80000000,
#ifdef CONFIG_MX7
#if defined(CONFIG_MX7) || defined(CONFIG_MX6ULL) || defined(CONFIG_MX6SLL)
EPDC_UPD_CTRL_LUT_SEL_MASK = 0x3F0000,
#else
EPDC_UPD_CTRL_LUT_SEL_MASK = 0xF0000,
@ -331,7 +331,7 @@ enum {
/* EPDC_AUTOWV_LUT field values */
EPDC_AUTOWV_LUT_DATA_MASK = 0xFF0000,
EPDC_AUTOWV_LUT_DATA_OFFSET = 16,
#ifdef CONFIG_MX7
#if defined(CONFIG_MX7) || defined(CONFIG_MX6ULL) || defined(CONFIG_MX6SLL)
EPDC_AUTOWV_LUT_ADDR_MASK = 0x7,
#else
EPDC_AUTOWV_LUT_ADDR_MASK = 0xFF,


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