Configure 16 bit data bus width for CS2(aemif) to use the norflash on DA850.
Signed-off-by: Kumar, Anil <anilkuma...@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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/