[PATCH 1/8] ARM: OMAP2+: Move DISPC L3 firewall to happen in omap_display_init()
From: tony@atomide.com (Tony Lindgren)
Date: 2012-02-22 22:17:10
Also in:
linux-fbdev, linux-omap
* Tony Lindgren [off-list ref] [120222 10:34]:
* Tomi Valkeinen [off-list ref] [120221 23:38]:quoted
Hi, On Tue, 2012-02-21 at 15:40 -0800, Tony Lindgren wrote:quoted
Otherwise we cannot move most of plat/io.h to be a local iomap.h for mach-omap2. Cc: Tomi Valkeinen <redacted> Cc: linux-fbdev at vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/display.c | 3 +++ drivers/video/omap2/dss/dispc.c | 5 ----- 2 files changed, 3 insertions(+), 5 deletions(-)diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 3677b1f..5a7f12f 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c@@ -191,6 +191,9 @@ int __init omap_display_init(struct omap_dss_board_info *board_data) memset(&pdata, 0, sizeof(pdata)); if (cpu_is_omap24xx()) { + /* L3 firewall setting: enable access to OCM RAM */ + __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0)); + curr_dss_hwmod = omap2_dss_hwmod_data; oh_count = ARRAY_SIZE(omap2_dss_hwmod_data); } else if (cpu_is_omap34xx()) {diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index e1626a1..cce0820 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c@@ -3272,11 +3272,6 @@ static void _omap_dispc_initial_config(void) if (dss_has_feature(FEAT_FUNCGATED)) REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); - /* L3 firewall setting: enable access to OCM RAM */ - /* XXX this should be somewhere in plat-omap */ - if (cpu_is_omap24xx()) - __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0)); - _dispc_setup_color_conv_coef(); dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);I think the whole raw_writel line can be removed. It's been copied from the old omapfb, and my understanding is that it's about using SRAM for framebuffer. Using SRAM for fb is no longer supported, and I have a patch set that removes the remaining SRAM code from omapfb/omapdss.OK, I'll remove those from drivers/video/omap2/dss/dispc.c so this series keeps building.
Here's this one updated. Tony From: Tony Lindgren <tony@atomide.com> Date: Mon, 20 Feb 2012 12:55:07 -0800 Subject: [PATCH] ARM: OMAP2+: Drop DISPC L3 firewall code This is only needed when using SRAM for framebuffer, and the support for SRAM framebuffer is about to get removed. Otherwise we cannot move most of plat/io.h to be a local iomap.h for mach-omap2. Cc: Tomi Valkeinen <redacted> Cc: linux-fbdev at vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com>
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c@@ -3272,11 +3272,6 @@ static void _omap_dispc_initial_config(void) if (dss_has_feature(FEAT_FUNCGATED)) REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); - /* L3 firewall setting: enable access to OCM RAM */ - /* XXX this should be somewhere in plat-omap */ - if (cpu_is_omap24xx()) - __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0)); - _dispc_setup_color_conv_coef(); dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);