From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawn.guo@freescale.com (Shawn Guo) Date: Sun, 6 Mar 2011 00:40:20 +0800 Subject: [PATCH 2/4] ARM: mxs/mx28evk: add framebuffer device In-Reply-To: <1299343222-30670-1-git-send-email-shawn.guo@freescale.com> References: <1299343222-30670-1-git-send-email-shawn.guo@freescale.com> Message-ID: <1299343222-30670-3-git-send-email-shawn.guo@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: Shawn Guo --- 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