From: Michael Trimarchi <michael@amarulasolutions.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [RFC PATCH 2/3] sunxi: Don't change the rank in dram size detection in A33
Date: Tue, 12 Feb 2019 17:57:07 +0100 [thread overview]
Message-ID: <20190212165708.23040-2-michael@amarulasolutions.com> (raw)
In-Reply-To: <20190212165708.23040-1-michael@amarulasolutions.com>
Change the size create a glitch in the clke signal on second
bank. The glitch can generate problem in memory initialiazation
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
---
arch/arm/mach-sunxi/dram_sun8i_a33.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm/mach-sunxi/dram_sun8i_a33.c b/arch/arm/mach-sunxi/dram_sun8i_a33.c
index 83212aaddf..d73a93a132 100644
--- a/arch/arm/mach-sunxi/dram_sun8i_a33.c
+++ b/arch/arm/mach-sunxi/dram_sun8i_a33.c
@@ -45,14 +45,12 @@ static void mctl_set_cr(struct dram_para *para)
static void auto_detect_dram_size(struct dram_para *para)
{
- u8 orig_rank = para->rank;
int rows, columns;
/* Row detect */
para->page_size = 512;
para->seq = 1;
para->rows = 16;
- para->rank = 1;
mctl_set_cr(para);
for (rows = 11 ; rows < 16 ; rows++) {
if (mctl_mem_matches(1 << (rows + 9))) /* row-column */
@@ -69,7 +67,6 @@ static void auto_detect_dram_size(struct dram_para *para)
}
para->seq = 0;
- para->rank = orig_rank;
para->rows = rows;
para->page_size = 1 << columns;
mctl_set_cr(para);
--
2.17.1
next prev parent reply other threads:[~2019-02-12 16:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 16:57 [U-Boot] [RFC PATCH 1/3] sunxi: Use clrsetbits_le32 instead of multiple instruction Michael Trimarchi
2019-02-12 16:57 ` Michael Trimarchi [this message]
2019-02-13 8:44 ` [U-Boot] [RFC PATCH 2/3] sunxi: Don't change the rank in dram size detection in A33 Maxime Ripard
2019-02-13 8:49 ` Michael Nazzareno Trimarchi
2019-02-13 11:10 ` Michael Nazzareno Trimarchi
2019-02-12 16:57 ` [U-Boot] [RFC PATCH 3/3] sunxi: Fix A33 memory initialization Michael Trimarchi
2019-02-13 8:45 ` Maxime Ripard
2019-02-13 8:50 ` Michael Nazzareno Trimarchi
2019-02-13 15:54 ` Maxime Ripard
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