From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Thu, 15 Oct 2015 20:08:11 +0200 Subject: [U-Boot] [PATCH 2/2] arm: socfpga: enable data/inst prefetch and shared override in the L2 In-Reply-To: <561FC086.6060303@opensource.altera.com> References: <1444661997-23059-1-git-send-email-dinguyen@opensource.altera.com> <201510151632.49540.marex@denx.de> <561FC086.6060303@opensource.altera.com> Message-ID: <201510152008.11147.marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Thursday, October 15, 2015 at 05:04:38 PM, Dinh Nguyen wrote: Hi! > >>> diff --git a/arch/arm/include/asm/pl310.h > >>> b/arch/arm/include/asm/pl310.h index 18b90b7..7a11405 100644 > >>> --- a/arch/arm/include/asm/pl310.h > >>> +++ b/arch/arm/include/asm/pl310.h > >>> @@ -17,6 +17,8 @@ > >>> > >>> #define L2X0_CTRL_EN 1 > >>> > >>> #define PL310_SHARED_ATT_OVERRIDE_ENABLE (1 << 22) > >>> > >>> +#define PL310_AUX_CTRL_DATA_PREFETCH_MASK (1 << 28) > >>> +#define PL310_AUX_CTRL_INST_PREFETCH_MASK (1 << 29) > >> > >> These would be > >> > >> arch/arm/include/asm/hardware/cache-l2x0.h:#define > >> L310_PREFETCH_CTRL_DATA_PREFETCH BIT(28) > >> arch/arm/include/asm/hardware/cache-l2x0.h:#define > >> L310_PREFETCH_CTRL_INSTR_PREFETCH BIT(29) > >> > >> ...in kernel. So maybe staying with L310_ prefix makes sense? > >> Otherwise it looks ok. > > > > Why is it L... in one and PL... in the other one ? What does the "PL" > > prefix stand for anyway ? > > As Pavel pointed out, it should be L310_x as this is how the Linux > kernel is defining it. It's my mistake in the previous patch to change > the define to PL310. > > I'll respin this patch with L310_PREFETCH_CTRL_DATA_PREFETCH and > L310_PREFETCH_CTRL_INSTR_PREFETCH. Well that didn't answer either of my questions ;-) Best regards, Marek Vasut