Minor nit: for consistency with "dvevm" and "dm355evm",
I suggest removing the underscore from "dm357_evm" in the
directory name.
> --- /dev/null
> +++ b/include/configs/davinci_dm357_evm.h
> @@ -0,0 +1,155 @@
> +...
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +#include <asm/sizes.h>
> +#include <asm/arch/hardware.h>
Breaks builds, since <config.h> is included by ASM code
and <asm/arch/hardware.h> includes C declarations (which
are invalid ASM syntax).
> +#define CONFIG_STACKSIZE 0x40000
> ...
> +#define CONFIG_STACKSIZE /* Input clock */
Also breaks builds, for a different reason. The second one
is clearly nonsense ...
I'd also be interested to know if the appended patchlet,
in conjunction with the NAND chipselect cleanup patch I
posted, provides proper access to the second NAND chip.
It should report a total of 2112 MBytes in the startup
message, and "nand devices" should report two chips.
Obviously I couldn't compile-test because of the above
issues ... but it looks more or less right; it's just
a copy of the dm355evm stuff that works, so the question
is whether the driver is handling both nCEO and nCE2
chipselect flavors right.
There are also a few things I'd change in the dm357 config
heade: enabling the NAND-resident BBT (faster boot), with
MTDPART and UBIFS.
- Dave
--- u-boot-arm.orig/board/davinci/dm357_evm/dm357_evm.c
+++ u-boot-arm/board/davinci/dm357_evm/dm357_evm.c
@@ -20,8 +20,10 @@
*/
#include <common.h>
+#include <nand.h>
#include <i2c.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/nand_defs.h>
#include "../common/psc.h"
#include "../common/misc.h"
@@ -67,3 +69,30 @@ int misc_init_r(void)
return 0;
}
+#define BIT(x) (1 << (x))
+
+static void nand_dm357evm_select_chip2(struct mtd_info *mtd, int chip)
+{
+ struct nand_chip *this = mtd->priv;
+ u32 wbase = (u32) this->IO_ADDR_W;
+ u32 rbase = (u32) this->IO_ADDR_R;
+
+ if (chip == 1) {
+ wbase |= BIT(3);
+ rbase |= BIT(3);
+ } else {
+ wbase &= ~BIT(3);
+ rbase &= ~BIT(3);
+ }
+ this->IO_ADDR_W = (void *)wbase;
+ this->IO_ADDR_R = (void *)rbase;
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+ davinci_nand_init(nand);
+ if (0x06000000 == (u32) this->IO_ADDR_W)
+ nand->select_chip = nand_dm357evm_select_chip2;
+ return 0;
+}
+
--- u-boot-arm.orig/include/configs/davinci_dm357_evm.h 2009-05-10
19:41:44.000000000 -0700
+++ u-boot-arm/include/configs/davinci_dm357_evm.h 2009-05-10
20:43:28.000000000 -0700
@@ -107,9 +105,16 @@
#endif
#define CONFIG_SKIP_LOWLEVEL_INIT /* U-Boot is loaded by a bootloader */
#define CONFIG_SKIP_RELOCATE_UBOOT /* to a proper address, init done */
-#define CONFIG_SYS_NAND_BASE DAVINCI_ASYNC_EMIF_DATA_CE0_BASE
#define CONFIG_SYS_NAND_HW_ECC
-#define CONFIG_SYS_MAX_NAND_DEVICE 1
+/*
+ * Boot NAND, small page, has one chipselect (nCE0)
+ * Storage NAND has two chipselects, nCE2 gated by address BIT(3)
+ */
+#define CONFIG_SYS_NAND_BASE_LIST \
+ { 0x02000000 , 0x06000000, }
+#define CONFIG_SYS_MAX_NAND_DEVICE 2
+#define CONFIG_SYS_NAND_MAX_CHIPS 2
+
#define CONFIG_ENV_OFFSET 0x0
#endif
/*
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
