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From: Simon Glass <sjg@chromium.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 14/17] tegra: Support control of cache settings for LCD
Date: Sat, 14 Jan 2012 16:47:26 -0800	[thread overview]
Message-ID: <1326588449-1794-15-git-send-email-sjg@chromium.org> (raw)
In-Reply-To: <1326588449-1794-1-git-send-email-sjg@chromium.org>

Add support for selecting the required cache mode for the LCD:
off, write-through or write-back.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
 drivers/video/tegra.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/video/tegra.c b/drivers/video/tegra.c
index 7622d2d..f244cc1 100644
--- a/drivers/video/tegra.c
+++ b/drivers/video/tegra.c
@@ -175,6 +175,15 @@ void lcd_ctrl_init(void *lcdbase)
 		return;
 	}
 
+	/* For write-through or cache off, change the LCD memory region */
+	if (!(config.cache_type & FDT_LCD_CACHE_WRITE_BACK))
+		mmu_set_region_dcache(config.frame_buffer, size,
+			config.cache_type & FDT_LCD_CACHE_WRITE_THROUGH ?
+				DCACHE_WRITETHROUGH : DCACHE_OFF);
+
+	/* Enable flushing after LCD writes if requested */
+	lcd_set_flush_dcache(config.cache_type & FDT_LCD_CACHE_FLUSH);
+
 	debug("LCD frame buffer at %p\n", lcd_base);
 }
 
-- 
1.7.7.3

  parent reply	other threads:[~2012-01-15  0:47 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-15  0:47 [U-Boot] [PATCH 0/17] tegra: Add display driver and LCD support for Seaboard Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 04/17] tegra: Add display support to funcmux Simon Glass
2012-01-15  1:36   ` Mike Frysinger
2012-06-13 12:15     ` Simon Glass
     [not found] ` <1326588449-1794-1-git-send-email-sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2012-01-15  0:47   ` [PATCH 01/17] fdt: Add function to look up a phandle's register address Simon Glass
2012-01-15  0:47     ` [U-Boot] " Simon Glass
2012-01-15  0:47   ` [PATCH 02/17] fdt: Add header guard to fdtdec.h Simon Glass
2012-01-15  0:47     ` [U-Boot] " Simon Glass
2012-01-15  0:47   ` [PATCH 03/17] fdt: Correct GPIO name access in fdtdec Simon Glass
2012-01-15  0:47     ` [U-Boot] " Simon Glass
2012-01-15  0:47   ` [PATCH 05/17] tegra: fdt: Add LCD definitions for Tegra Simon Glass
2012-01-15  0:47     ` [U-Boot] " Simon Glass
2012-01-15  0:47   ` [PATCH 15/17] tegra: fdt: Add LCD definitions for Seaboard Simon Glass
2012-01-15  0:47     ` [U-Boot] " Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 06/17] tegra: Add support for PWFM Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 07/17] tegra: Add SOC support for display/lcd Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 08/17] tegra: Add LCD driver Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 09/17] tegra: Add LCD support to Nvidia boards Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 10/17] arm: Add control over cachability of memory regions Simon Glass
2012-02-10 20:38   ` Albert ARIBAUD
2012-03-04  6:20     ` Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 11/17] lcd: Add CONFIG_ALIGN_LCD_TO_SECTION to align lcd for MMU Simon Glass
2012-01-15  1:38   ` Mike Frysinger
2012-06-13 12:23     ` Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 12/17] lcd: Add support for flushing LCD fb from dcache after update Simon Glass
2012-01-15  1:42   ` Mike Frysinger
2012-01-15  1:57     ` Simon Glass
2012-01-15  2:16       ` Mike Frysinger
2012-06-13 12:25         ` Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 13/17] tegra: Align LCD frame buffer to section boundary Simon Glass
2012-01-15  0:47 ` Simon Glass [this message]
2012-01-15  0:47 ` [U-Boot] [PATCH 16/17] lcd: Add CONSOLE_SCROLL_LINES option to speed console Simon Glass
2012-01-15  0:47 ` [U-Boot] [PATCH 17/17] tegra: Enable display/lcd support on Seaboard Simon Glass
2012-04-19 12:41 ` [U-Boot] [PATCH 0/17] tegra: Add display driver and LCD support for Seaboard Christian Kroehnert
2012-07-14  8:03   ` Simon Glass
2012-07-17 16:11     ` Thierry Reding
2012-07-18  6:51       ` Simon Glass
2012-07-19 12:01         ` Christian Kroehnert
2012-07-24 19:16         ` Stephen Warren

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