* Manikandan Pillai <mani.pillai@xxxxxx> [081128 07:36]:
> Flash initialization has been modified to take care on NAND initialization
> and creation of NAND partitions.
Pushing to l-o tree. Do you also want to prepare patches against
the mainline tree for minimal omap3evm support for the next merge
window?
Regards,
Tony
> Signed-off-by: Manikandan Pillai <mani.pillai@xxxxxx>
> ---
> arch/arm/mach-omap2/board-omap3evm-flash.c | 85 ++++++++++++++++++++--
> arch/arm/plat-omap/include/mach/board-omap3evm.h | 2 +
> 2 files changed, 82 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/board-omap3evm-flash.c b/arch/arm/mach-omap2/board-omap3evm-flash.c
> index 5f3663d..72c7f5b 100644
> --- a/arch/arm/mach-omap2/board-omap3evm-flash.c
> +++ b/arch/arm/mach-omap2/board-omap3evm-flash.c
> @@ -23,6 +23,9 @@
> #include <mach/gpmc.h>
> #include <mach/nand.h>
>
> +#define GPMC_CS0_BASE 0x60
> +#define GPMC_CS_SIZE 0x30
> +
> static int omap3evm_onenand_setup(void __iomem *, int freq);
>
> static struct mtd_partition omap3evm_onenand_partitions[] = {
> @@ -70,6 +73,63 @@ static struct platform_device omap3evm_onenand_device = {
> },
> };
>
> +static struct mtd_partition omap3evm_nand_partitions[] = {
> + /* All the partition sizes are listed in terms of NAND block size */
> + {
> + .name = "X-Loader-NAND",
> + .offset = 0,
> + .size = 4*(128 * 1024),
> + .mask_flags = MTD_WRITEABLE, /* force read-only */
> + },
> + {
> + .name = "U-Boot-NAND",
> + .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
> + .size = 14*(128 * 1024),
> + .mask_flags = MTD_WRITEABLE, /* force read-only */
> + },
> + {
> + .name = "Boot Env-NAND",
> +
> + .offset = MTDPART_OFS_APPEND, /* Offset = 0x100000 */
> + .size = 2*(128 * 1024),
> + },
> + {
> + .name = "Kernel-NAND",
> + .offset = MTDPART_OFS_APPEND, /* Offset = 0x140000 */
> + .size = 40*(128 * 1024),
> + },
> + {
> + .name = "File System - NAND",
> + .size = MTDPART_SIZ_FULL,
> + .offset = MTDPART_OFS_APPEND, /* Offset = 0x540000 */
> + },
> +};
> +
> +/* dip switches control NAND chip access: 8 bit, 16 bit, or neither */
> +static struct omap_nand_platform_data omap3evm_nand_data = {
> + .parts = omap3evm_nand_partitions,
> + .nr_parts = ARRAY_SIZE(omap3evm_nand_partitions),
> + .nand_setup = NULL,
> + .dma_channel = -1, /* disable DMA in OMAP NAND driver */
> + .dev_ready = NULL,
> + .options = NAND_SAMSUNG_LP_OPTIONS,
> +};
> +
> +static struct resource omap3evm_nand_resource = {
> + .flags = IORESOURCE_MEM,
> +};
> +
> +static struct platform_device omap3evm_nand_device = {
> + .name = "omap2-nand",
> + .id = 0,
> + .dev = {
> + .platform_data = &omap3evm_nand_data,
> + },
> + .num_resources = 1,
> + .resource = &omap3evm_nand_resource,
> +};
> +
> +
> /*
> * omap3evm_onenand_setup - Set the onenand sync mode
> * @onenand_base: The onenand base address in GPMC memory map
> @@ -86,6 +146,8 @@ void __init omap3evm_flash_init(void)
> {
> u8 cs = 0;
> u8 onenandcs = GPMC_CS_NUM + 1;
> + u8 nandcs = GPMC_CS_NUM + 1;
> + u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
>
> while (cs < GPMC_CS_NUM) {
> u32 ret = 0;
> @@ -100,18 +162,31 @@ void __init omap3evm_flash_init(void)
> */
> if ((ret & 0x3F) == (ONENAND_MAP >> 24))
> onenandcs = cs;
> + else if ((ret & 0x3F) == (NAND_MAP >> 24))
> + nandcs = cs;
> cs++;
> }
> if (onenandcs > GPMC_CS_NUM) {
> printk(KERN_INFO "OneNAND: Unable to find configuration "
> " in GPMC\n ");
> - return;
> - }
> -
> - if (onenandcs < GPMC_CS_NUM) {
> + } else if (onenandcs < GPMC_CS_NUM) {
> + printk(KERN_INFO "OneNAND: on CS%d\n", onenandcs);
> omap3evm_onenand_data.cs = onenandcs;
> if (platform_device_register(&omap3evm_onenand_device) < 0)
> printk(KERN_ERR "Unable to register OneNAND device\n");
> }
> -}
>
> + if (nandcs > GPMC_CS_NUM) {
> + printk(KERN_INFO "NAND: Unable to find configuration "
> + "in GPMC\n ");
> + } else if (nandcs < GPMC_CS_NUM) {
> + printk(KERN_INFO "NAND: on CS%d\n", nandcs);
> + omap3evm_nand_data.cs = nandcs;
> + omap3evm_nand_data.gpmc_cs_baseaddr = (void *)
> + (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
> + omap3evm_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
> + printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
> + if (platform_device_register(&omap3evm_nand_device) < 0)
> + printk(KERN_ERR "Unable to register NAND device\n");
> + }
> +}
> diff --git a/arch/arm/plat-omap/include/mach/board-omap3evm.h b/arch/arm/plat-omap/include/mach/board-omap3evm.h
> index 7a540e9..0c7c05c 100644
> --- a/arch/arm/plat-omap/include/mach/board-omap3evm.h
> +++ b/arch/arm/plat-omap/include/mach/board-omap3evm.h
> @@ -40,5 +40,7 @@ extern void omap3evm_flash_init(void);
> #define OMAP3EVM_ETHR_GPIO_IRQ 176
> #define OMAP3EVM_SMC911X_CS 5
>
> +#define NAND_MAP 0x30000000
> +
> #endif /* __ASM_ARCH_OMAP3_EVM_H */
>
> --
> 1.5.6
>
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