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From: Philip Oberfichtner <pro@denx.de>
To: u-boot@lists.denx.de
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>,
	Stefano Babic <sbabic@denx.de>, Marek Vasut <marex@denx.de>,
	Philip Oberfichtner <pro@denx.de>,
	Bharat Gooty <bharat.gooty@broadcom.com>,
	Dzmitry Sankouski <dsankouski@gmail.com>,
	Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>,
	Sean Anderson <sean.anderson@seco.com>, Stefan Roese <sr@denx.de>,
	Tom Rini <trini@konsulko.com>
Subject: [PATCH v3 2/3] ARM: cache: Allow SPL to build cache-pl310.c
Date: Tue,  9 Aug 2022 12:07:01 +0200	[thread overview]
Message-ID: <20220809100703.3101047-3-pro@denx.de> (raw)
In-Reply-To: <20220809100703.3101047-1-pro@denx.de>

Introduce the new Kconfig symbol CONFIG_SPL_SYS_L2_PL310 to allow the
SPL to build cache-pl310.c.

Before this commit, the SPL could enable the PL310 L2 cache [1], but the
cache maintenance functions from cache-pl310.c were only useable for
non-SPL builds.

After enabling the cache one must be able to flush it, too. Thus this
commit allows cache-pl310.c to be included in the SPL build.

[1] See for example arch/arm/mach-imx/cache.c: v7_outer_cache_enable()

Signed-off-by: Philip Oberfichtner <pro@denx.de>
---

Changes in v3:
        - Introduce CONFIG_SPL_SYS_L2_PL310

 arch/arm/Kconfig      | 5 +++++
 arch/arm/lib/Makefile | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index dde06bdd96..0bc03c921a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -493,6 +493,11 @@ config SYS_L2_PL310
 	help
 	  Enable support for ARM PL310 L2 cache controller in U-Boot
 
+config SPL_SYS_L2_PL310
+	bool "ARM PL310 L2 cache controller in SPL"
+	help
+	  Enable support for ARM PL310 L2 cache controller in SPL
+
 config SYS_L2CACHE_OFF
 	bool "L2cache off"
 	help
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index c603fe61bc..d137b4bf0f 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -33,7 +33,6 @@ obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
 obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
 obj-$(CONFIG_CMD_BOOTZ) += bootm.o zimage.o
-obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
 else
 obj-$(CONFIG_$(SPL_TPL_)FRAMEWORK) += spl.o
 obj-$(CONFIG_SPL_FRAMEWORK) += zimage.o
@@ -46,6 +45,7 @@ else
 obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMSET) += memset.o
 obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMCPY) += memcpy.o
 endif
+obj-$(CONFIG_$(SPL_TPL_)SYS_L2_PL310) += cache-pl310.o
 obj-$(CONFIG_$(SPL_TPL_)SEMIHOSTING) += semihosting.o
 
 ifneq ($(filter y,$(CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR) $(CONFIG_SAVE_PREV_BL_FDT_ADDR)),)
-- 
2.37.1


  parent reply	other threads:[~2022-08-09 10:08 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-09 10:06 [PATCH v3 0/3] ARM: imx6: dh-imx6: Enable d-cache early in SPL Philip Oberfichtner
2022-08-09 10:07 ` [PATCH v3 1/3] Convert CONFIG_SYS_L2_PL310 to Kconfig Philip Oberfichtner
2022-08-09 10:58   ` Pali Rohár
2022-08-09 11:16     ` Marek Vasut
2022-08-09 11:21       ` Pali Rohár
2022-08-09 11:27         ` Marek Vasut
2022-08-09 11:32           ` Pali Rohár
2022-08-09 11:38             ` Marek Vasut
2022-08-09 12:59               ` Pali Rohár
2022-08-09 13:16               ` Marek Behún
2022-08-09 13:18                 ` Marek Behún
2022-08-09 13:46             ` Tom Rini
2022-08-09 16:03               ` Marek Vasut
2022-08-09 16:36                 ` Tom Rini
2022-08-09 18:27                   ` Marek Vasut
2022-08-11 10:17                     ` Philip Oberfichtner
2022-08-16 14:42                       ` Philip Oberfichtner
2022-08-09 14:32         ` Phil Sutter
2022-08-12  8:39   ` Soeren Moch
2022-08-09 10:07 ` Philip Oberfichtner [this message]
2022-08-09 10:07 ` [PATCH v3 3/3] ARM: imx6: dh-imx6: Enable d-cache early in SPL Philip Oberfichtner
2022-08-09 11:17   ` Marek Vasut

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