Re: Configure M5329 NAND for Freescale MCF5329EVB (uClinux-dist-20150808)

Hi Ted,

On 02/12/15 06:56, Ted Victorio wrote:
> I am unable to compile for the M5329 NAND using the configuration below.
>
> Distro:        uClinux-dist-20150808
> Tool:           m68k-uclinux-tools-20101118
> Platform:   Freescale MCF5329EVB
>
> # Linux/m68k 4.0.0-uc0 Kernel Configuration
[snip]
>
> Errors:
> drivers/mtd/nand/m5329.c: In function 5329_init:
> drivers/mtd/nand/m5329.c:85:2: error: lvalue required as left operand of
> assignment
> drivers/mtd/nand/m5329.c:90:4: error: lvalue required as left operand of
> assignment
> drivers/mtd/nand/m5329.c:92:4: error: lvalue required as left operand of
> assignment
> drivers/mtd/nand/m5329.c:131:2: error: implicit declaration of function
> add_mtd_partitions
>
> Do I need additional options? Or something else?

The definitions for register addresses were sanitized for Coldfire
hardware a few kernel revisions back. They are now all register
addresses (or offsets) - not access macros as some were.

You will need the patch below to fix this driver (compile tested
only). The include of mtdcore is a little ugly, but it should get
you going for now.

Regards
Greg



--- linux/drivers/mtd/nand/m5329.c.org	2015-12-03 00:19:18.324085936 +1000
+++ linux/drivers/mtd/nand/m5329.c	2015-12-03 00:27:49.644082361 +1000
@@ -27,6 +27,7 @@
  #include <linux/mtd/partitions.h>
  #include <asm/io.h>
  #include <asm/mcfsim.h>
+#include "../mtdcore.h"

  /*
   * MTD structure for M5329EVB board
@@ -82,14 +83,14 @@
  	struct nand_chip *this;

  	/* Setup NAND flash chip select signals */
-	MCF_FBCS2_CSAR = NAND_FLASH_ADDRESS;
-	MCF_FBCS2_CSCR = (MCF_FBCS_CSCR_PS_8
-			| MCF_FBCS_CSCR_BEM
-			| MCF_FBCS_CSCR_AA
-			| MCF_FBCS_CSCR_SBM
-			| MCF_FBCS_CSCR_WS(7));
-	MCF_FBCS2_CSMR = (MCF_FBCS_CSMR_BAM_16M
-			| MCF_FBCS_CSMR_V);
+	writel(NAND_FLASH_ADDRESS, MCF_FBCS2_CSAR);
+	writel(MCF_FBCS_CSCR_PS_8
+		| MCF_FBCS_CSCR_BEM
+		| MCF_FBCS_CSCR_AA
+		| MCF_FBCS_CSCR_SBM
+		| MCF_FBCS_CSCR_WS(7),
+		MCF_FBCS2_CSCR);
+	writel(MCF_FBCS_CSMR_BAM_16M | MCF_FBCS_CSMR_V, MCF_FBCS2_CSMR);

  	/* Allocate memory for MTD device structure and private data */
  	m5329_mtd = kmalloc (sizeof(struct mtd_info)+sizeof (struct nand_chip),


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