lkml.org 
[lkml]   [2013]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] ARM: davinci: da850: configure CS2(aemif) for norflash
Date
Configure 16 bit data bus width for CS2(aemif) to use the norflash on
DA850.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
---
: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


\
 
 \ /
  Last update: 2013-01-29 07:01    [W:0.041 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site