From: Juergen Beisert <jbe@pengutronix.de>
To: barebox@lists.infradead.org
Subject: Re: [PATCH 3/4] ARM i.MX28 tx28: use a fixed framebuffer address
Date: Mon, 17 Jan 2011 11:59:31 +0100 [thread overview]
Message-ID: <201101171159.31154.jbe@pengutronix.de> (raw)
In-Reply-To: <1295259766-19301-4-git-send-email-s.hauer@pengutronix.de>
Sascha Hauer wrote:
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
> arch/arm/boards/karo-tx28/tx28-stk5.c | 12 ++++++++++++
> 1 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/boards/karo-tx28/tx28-stk5.c
> b/arch/arm/boards/karo-tx28/tx28-stk5.c index 6de41f7..adad8b9 100644
> --- a/arch/arm/boards/karo-tx28/tx28-stk5.c
> +++ b/arch/arm/boards/karo-tx28/tx28-stk5.c
> @@ -19,11 +19,13 @@
> #include <errno.h>
> #include <mci.h>
> #include <fec.h>
> +#include <sizes.h>
> #include <asm/io.h>
> #include <mach/imx-regs.h>
> #include <mach/clock.h>
> #include <mach/mci.h>
> #include <mach/fb.h>
> +#include <asm/sections.h>
>
> static struct stm_mci_platform_data mci_pdata = {
> .caps = MMC_MODE_4BIT | MMC_MODE_HS | MMC_MODE_HS_52MHz,
> @@ -181,11 +183,15 @@ static struct fb_videomode tx28evk_vmodes[] = {
> },
> };
>
> +#define MAX_FB_SIZE SZ_2M
> +
> static struct imx_fb_videomode imxfb_mode = {
> .mode_list = tx28evk_vmodes,
> .mode_cnt = ARRAY_SIZE(tx28evk_vmodes),
> .dotclk_delay = 0, /* no adaption required */
> .ld_intf_width = STMLCDIF_24BIT, /* full 24 bit */
> + .fixed_screen = (void *)(0x40000000 + SZ_128M - MAX_FB_SIZE),
> + .fixed_screen_size = MAX_FB_SIZE,
> };
Question only: Any idea how we could make this setup (base address and size of
the fixed screen) a runtime feature? This would be a nice feature like most
modern BIOS also have: Make the size of the video memory shared with the CPU
selectable at runtime.
jbe
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | Phone: +49-8766-939 228 |
Vertretung Sued/Muenchen, Germany | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2011-01-17 11:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-17 10:22 i.MX28 patches v2 Sascha Hauer
2011-01-17 10:22 ` [PATCH 1/4] video stm/mx2x: simplify memory allocation Sascha Hauer
2011-01-17 10:22 ` [PATCH 2/4] video stm/mx2x: allow to pass in fb memory from platform data Sascha Hauer
2011-01-17 17:56 ` [PATCH 2/4 v2] " Sascha Hauer
2011-01-17 10:22 ` [PATCH 3/4] ARM i.MX28 tx28: use a fixed framebuffer address Sascha Hauer
2011-01-17 10:59 ` Juergen Beisert [this message]
2011-01-17 22:49 ` Marc Reilly
2011-01-18 7:48 ` Peter Korsgaard
2011-01-18 9:41 ` Juergen Beisert
2011-01-17 10:22 ` [PATCH 4/4] ARM i.MX28 tx28 defconfig: enable MMU Sascha Hauer
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