From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH] ARM: i.MX6: Add i.MX6 entry function
Date: Wed, 15 Jul 2015 08:02:49 +0200 [thread overview]
Message-ID: <1436940169-25319-1-git-send-email-s.hauer@pengutronix.de> (raw)
Add a i.MX6 specific entry function which automatically detects the SDRAM
size. The prototype has already been present, but it was never implemented.
Rename it to imx6q_ since the other variants need other functions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/esdctl.c | 11 +++++++++++
arch/arm/mach-imx/include/mach/esdctl.h | 2 +-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c
index a8ef854..2f9f5e9 100644
--- a/arch/arm/mach-imx/esdctl.c
+++ b/arch/arm/mach-imx/esdctl.c
@@ -576,3 +576,14 @@ void __noreturn imx53_barebox_entry(void *boarddata)
barebox_arm_entry(base, size, boarddata);
}
+
+void __noreturn imx6q_barebox_entry(void *boarddata)
+{
+ u64 size_cs0 = imx6_mmdc_sdram_size((void *)MX6_MMDC_P0_BASE_ADDR, 0);
+ u64 size_cs1 = imx6_mmdc_sdram_size((void *)MX6_MMDC_P0_BASE_ADDR, 1);
+ u64 total = size_cs0 + size_cs1;
+
+ resource_size_t size = min(total, (u64)IMX6_MAX_SDRAM_SIZE);
+
+ barebox_arm_entry(0x10000000, size, boarddata);
+}
diff --git a/arch/arm/mach-imx/include/mach/esdctl.h b/arch/arm/mach-imx/include/mach/esdctl.h
index 468a928..cf8d89d 100644
--- a/arch/arm/mach-imx/include/mach/esdctl.h
+++ b/arch/arm/mach-imx/include/mach/esdctl.h
@@ -135,7 +135,7 @@ void __noreturn imx31_barebox_entry(void *boarddata);
void __noreturn imx35_barebox_entry(void *boarddata);
void __noreturn imx51_barebox_entry(void *boarddata);
void __noreturn imx53_barebox_entry(void *boarddata);
-void __noreturn imx6_barebox_entry(void *boarddata);
+void __noreturn imx6q_barebox_entry(void *boarddata);
void imx_esdctl_disable(void);
#endif
--
2.1.4
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reply other threads:[~2015-07-15 6:03 UTC|newest]
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