davinci: Add NAND flash support for DA850/OMAP-L138
This patch adds platform data for the 512MB NAND Flash
found on DA850/OMAP-L138 EVM. Currently it supports
only 1-bit ECC.
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 9debd57..db42094 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -310,6 +310,13 @@
.lpsc = DA8XX_LPSC0_MMC_SD,
};
+static struct clk aemif_clk = {
+ .name = "aemif",
+ .parent = &pll0_sysclk3,
+ .lpsc = DA8XX_LPSC0_EMIF25,
+ .flags = ALWAYS_ENABLED,
+};
+
static struct davinci_clk da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -350,6 +357,7 @@
CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
CLK("davinci_mmc.0", NULL, &mmcsd_clk),
+ CLK(NULL, "aemif", &aemif_clk),
CLK(NULL, NULL, NULL),
};
@@ -448,6 +456,21 @@
MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
+ /* EMIF2.5/EMIFA function */
+ MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
+ MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
+ MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
+ MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
+ MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
+ MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
+ MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
+ MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
/* GPIO function */
MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
MUX_CFG(DA850, GPIO8_10, 18, 28, 15, 8, false)
@@ -514,6 +537,14 @@
-1
};
+const short da850_nand_pins[] __initdata = {
+ DA850_EMA_D_7, DA850_EMA_D_6, DA850_EMA_D_5, DA850_EMA_D_4,
+ DA850_EMA_D_3, DA850_EMA_D_2, DA850_EMA_D_1, DA850_EMA_D_0,
+ DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
+ DA850_NEMA_WE, DA850_NEMA_OE,
+ -1
+};
+
/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
[IRQ_DA8XX_COMMTX] = 7,