From: Alexander Shiyan <eagle.alexander923@gmail.com>
To: barebox@lists.infradead.org
Cc: Alexander Shiyan <eagle.alexander923@gmail.com>
Subject: [RFC 7/8] ARM: OMAP: Use EMIF4 registers for get SDRAM size
Date: Fri, 3 Jun 2022 14:25:39 +0300 [thread overview]
Message-ID: <20220603112540.51644-7-eagle.alexander923@gmail.com> (raw)
In-Reply-To: <20220603112540.51644-1-eagle.alexander923@gmail.com>
Instead of using the registers of the control module, we will use
the EMIF registers in am335x_sdram_size().
This can help when porting this function to other CPU variants.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
---
arch/arm/mach-omap/am33xx_generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-omap/am33xx_generic.c b/arch/arm/mach-omap/am33xx_generic.c
index bdfa0e9e26..2727ebdf7f 100644
--- a/arch/arm/mach-omap/am33xx_generic.c
+++ b/arch/arm/mach-omap/am33xx_generic.c
@@ -349,9 +349,9 @@ void am33xx_config_sdram(const struct am33xx_emif_regs *regs)
*/
unsigned long am335x_sdram_size(void)
{
+ uint32_t sdram_config = readl(IOMEM(AM33XX_EMIF4_BASE + EMIF4_SDRAM_CONFIG));
int rows, cols, width, banks;
unsigned long size;
- uint32_t sdram_config = readl(CM_EMIF_SDRAM_CONFIG);
rows = ((sdram_config >> 7) & 0x7) + 9;
cols = (sdram_config & 0x7) + 8;
--
2.32.0
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next prev parent reply other threads:[~2022-06-03 11:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-03 11:25 [RFC 1/8] ARM: OMAP: Rearranging EMIF4 definitions Alexander Shiyan
2022-06-03 11:25 ` [RFC 2/8] ARM: OMAP: Move EMIF4 definitions to appropriate header Alexander Shiyan
2022-06-03 11:25 ` [RFC 3/8] ARM: OMAP: Adopt am35xx_emif4_init() to use fixed offset definitions Alexander Shiyan
2022-06-03 11:25 ` [RFC 4/8] ARM: OMAP: Move locally used definitions from emif4 header to am35xx_emif4 Alexander Shiyan
2022-06-03 11:25 ` [RFC 5/8] ARM: OMAP: emif: Abstract am35xx_emif4 from any CPU-specific includes Alexander Shiyan
2022-06-03 11:25 ` [RFC 6/8] ARM: OMAP: emif: Rename am35xx_emif4 unit Alexander Shiyan
2022-06-03 11:25 ` Alexander Shiyan [this message]
2022-06-03 11:25 ` [RFC 8/8] ARM: OMAP: Move am33xx_sdram_size() into EMIF module and make it generic Alexander Shiyan
2022-06-07 7:38 ` [RFC 1/8] ARM: OMAP: Rearranging EMIF4 definitions Sascha Hauer
2022-06-07 7:47 ` Alexander Shiyan
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