[PATCH 2/4] ARM: mxs/mx28evk: add framebuffer device
Shawn Guo
shawn.guo at freescale.com
Sat Mar 5 11:40:20 EST 2011
Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
---
arch/arm/mach-mxs/Kconfig | 1 +
arch/arm/mach-mxs/clock-mx28.c | 2 +
arch/arm/mach-mxs/mach-mx28evk.c | 78 ++++++++++++++++++++++++++++++++++++++
3 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 4f0b673..cffd860 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -33,6 +33,7 @@ config MACH_MX28EVK
select MXS_HAVE_AMBA_DUART
select MXS_HAVE_PLATFORM_AUART
select MXS_HAVE_PLATFORM_FEC
+ select MXS_HAVE_PLATFORM_MXSFB
select MXS_OCOTP
default y
help
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index 8277056..56bd164 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -750,6 +750,8 @@ int __init mx28_clocks_init(void)
clk_enable(&emi_clk);
clk_enable(&uart_clk);
+ clk_set_parent(&lcdif_clk, &ref_pix_clk);
+
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index 987e3d5..2102ffd 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -29,6 +29,8 @@
#include "gpio.h"
#define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15)
+#define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18)
+#define MX28EVK_LCD_ENABLE MXS_GPIO_NR(3, 30)
#define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13)
static const iomux_cfg_t mx28evk_pads[] __initconst = {
@@ -69,6 +71,40 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
MX28_PAD_SSP1_DATA3__GPIO_2_15 | MXS_PAD_CTRL,
/* phy reset line */
MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | MXS_PAD_CTRL,
+
+ /* mxsfb (lcdif) */
+ MX28_PAD_LCD_D00__LCD_D0 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D01__LCD_D1 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D02__LCD_D2 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D03__LCD_D3 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D04__LCD_D4 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D05__LCD_D5 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D06__LCD_D6 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D07__LCD_D7 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D08__LCD_D8 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D09__LCD_D9 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D18__LCD_D18 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D19__LCD_D19 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D20__LCD_D20 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D21__LCD_D21 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D22__LCD_D22 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_D23__LCD_D23 | MXS_PAD_CTRL,
+ MX28_PAD_LCD_RD_E__LCD_VSYNC | MXS_PAD_CTRL,
+ MX28_PAD_LCD_WR_RWN__LCD_HSYNC | MXS_PAD_CTRL,
+ MX28_PAD_LCD_RS__LCD_DOTCLK | MXS_PAD_CTRL,
+ MX28_PAD_LCD_CS__LCD_ENABLE | MXS_PAD_CTRL,
+ /* LCD panel enable */
+ MX28_PAD_LCD_RESET__GPIO_3_30 | MXS_PAD_CTRL,
+ /* backlight control */
+ MX28_PAD_PWM2__GPIO_3_18 | MXS_PAD_CTRL,
};
/* fec */
@@ -152,8 +188,36 @@ error:
return -ETIMEDOUT;
}
+/* mxsfb (lcdif) */
+static struct fb_videomode mx28evk_video_modes[] = {
+ {
+ .name = "Seiko-43WVF1G",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 29851, /* picosecond (33.5 MHz) */
+ .left_margin = 89,
+ .right_margin = 164,
+ .upper_margin = 23,
+ .lower_margin = 10,
+ .hsync_len = 10,
+ .vsync_len = 10,
+ .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
+ FB_SYNC_DOTCLK_FAILING_ACT,
+ },
+};
+
+static const struct mxsfb_platform_data mx28evk_mxsfb_pdata __initconst = {
+ .mode_list = mx28evk_video_modes,
+ .mode_count = ARRAY_SIZE(mx28evk_video_modes),
+ .default_bpp = 32,
+ .ld_intf_width = STMLCDIF_24BIT,
+};
+
static void __init mx28evk_init(void)
{
+ int ret;
+
mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads));
mx28_add_duart();
@@ -166,6 +230,20 @@ static void __init mx28evk_init(void)
mx28evk_fec_reset();
mx28_add_fec(0, &mx28_fec_pdata[0]);
mx28_add_fec(1, &mx28_fec_pdata[1]);
+
+ ret = gpio_request_one(MX28EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
+ if (ret)
+ pr_warn("failed to request gpio lcd-enable: %d\n", ret);
+ else
+ gpio_set_value(MX28EVK_LCD_ENABLE, 1);
+
+ ret = gpio_request_one(MX28EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable");
+ if (ret)
+ pr_warn("failed to request gpio bl-enable: %d\n", ret);
+ else
+ gpio_set_value(MX28EVK_BL_ENABLE, 1);
+
+ mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
}
static void __init mx28evk_timer_init(void)
--
1.7.1
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