From: "Kumar, Anil" <anilkumar.v-l0cyMroinI0@public.gmane.org>
To: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org
Cc: linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org,
nsekhar-l0cyMroinI0@public.gmane.org,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org,
khilman-1D3HCaltpLuhEniVeURVKkEOCMrvLtNR@public.gmane.org,
anilkumar.v-l0cyMroinI0@public.gmane.org,
hs-ynQEQJNshbs@public.gmane.org
Subject: [PATCH 2/2] ARM: davinci: da850: configure CS2(aemif) for norflash
Date: Tue, 29 Jan 2013 10:49:56 +0530 [thread overview]
Message-ID: <1359436796-25135-3-git-send-email-anilkumar.v@ti.com> (raw)
In-Reply-To: <1359436796-25135-1-git-send-email-anilkumar.v-l0cyMroinI0@public.gmane.org>
Configure 16 bit data bus width for CS2(aemif) to use the norflash on
DA850.
Signed-off-by: Kumar, Anil <anilkumar.v-l0cyMroinI0@public.gmane.org>
---
:100644 100644 37c27af... 540e284... M arch/arm/mach-davinci/da8xx-dt.c
arch/arm/mach-davinci/da8xx-dt.c | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index 37c27af..540e284 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -38,12 +38,29 @@ static void __init da8xx_init_irq(void)
}
#ifdef CONFIG_ARCH_DAVINCI_DA850
+#define DA8XX_AEMIF_CE2CFG_OFFSET 0x10
+#define DA8XX_AEMIF_ASIZE_16BIT 0x1
+
+static void __init da8xx_init_nor(void)
+{
+ void __iomem *aemif_addr;
+
+ aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
+
+ /* Configure data bus width of CS2 to 16 bit */
+ writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
+ DA8XX_AEMIF_ASIZE_16BIT,
+ aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);
+
+ iounmap(aemif_addr);
+}
static void __init da850_init_machine(void)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
da8xx_uart_clk_enable();
+ da8xx_init_nor();
}
static const char *da850_boards_compat[] __initdata = {
--
1.7.4.1
next prev parent reply other threads:[~2013-01-29 5:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-29 5:19 [PATCH 0/2] DaVinci: da850: Add NOR flash DT node support Kumar, Anil
[not found] ` <1359436796-25135-1-git-send-email-anilkumar.v-l0cyMroinI0@public.gmane.org>
2013-01-29 5:19 ` [PATCH 1/2] ARM: davinci: da850 evm: add norflash DT node Kumar, Anil
2013-01-29 5:19 ` Kumar, Anil [this message]
2013-01-29 8:02 ` [PATCH 2/2] ARM: davinci: da850: configure CS2(aemif) for norflash Heiko Schocher
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