From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lauri Hintsala Date: Tue, 17 Apr 2012 11:07:28 +0300 Subject: [U-Boot] MXS NAND: DMA read error Message-ID: <4F8D24C0.9090106@bluegiga.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello, I'm trying to compile latest U-Boot to mx28evk (rev D) with NAND support. U-Boot boots up but NAND chip is not detected and DMA read error is popped up. Here is console output: U-Boot 2012.04-rc2-dirty (Apr 17 2012 - 10:58:50) Freescale i.MX28 family at 454 MHz DRAM: 128 MiB NAND: MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: Error sending command MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: Error sending command MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) MXS NAND: DMA read error (-110) No NAND device found!!! 0 MiB I did following changes to mainline code. Did I forget something? diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 9c95811..93e54da 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -465,7 +465,7 @@ static void mxs_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int length) /* Execute the DMA chain. */ ret = mxs_dma_go(channel); if (ret) { - printf("MXS NAND: DMA read error\n"); + printf("MXS NAND: DMA read error (%d)\n", ret); goto rtn; } diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h index 02f3366..a0bd2db 100644 --- a/include/configs/mx28evk.h +++ b/include/configs/mx28evk.h @@ -148,6 +148,15 @@ #endif /* + * NAND + */ +#define CONFIG_CMD_NAND +#define CONFIG_NAND_MXS +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE 0x60000000 +#define CONFIG_SYS_NAND_5_ADDR_CYCLE + +/* * Ethernet on SOC (FEC) */ #ifdef CONFIG_CMD_NET BR, Lauri Hintsala