Messages in this thread | | | Subject | Re: [RESEND PATCH v2 3/4] ARM: davinci: add aemif & nand support to da850-lcdk in legacy mode | From | Sekhar Nori <> | Date | Wed, 25 Apr 2018 14:50:11 +0530 |
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On Wednesday 25 April 2018 02:44 PM, Bartosz Golaszewski wrote: > 2018-04-17 16:09 GMT+02:00 Sekhar Nori <nsekhar@ti.com>: >> On Tuesday 17 April 2018 03:59 PM, Bartosz Golaszewski wrote: >>> From: Bartosz Golaszewski <bgolaszewski@baylibre.com> >>> >>> We now have support for aemif & nand from board files. As an example >>> add support for nand to da850-lcdk in legacy mode. >> >> Hawkboard is a separate board of its own, although closely related to >> LCDK. Lets refer to it as hawkboard itself, instead of "LCDK in legacy >> mode". So: >> >> ARM: davinci: omapl138-hawk: ... >> >>> >>> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> >>> --- >>> arch/arm/mach-davinci/board-omapl138-hawk.c | 132 ++++++++++++++++++++ >>> 1 file changed, 132 insertions(+) >>> >>> diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c >>> index 6c997c59a3cd..9c3de56b54e4 100644 >>> --- a/arch/arm/mach-davinci/board-omapl138-hawk.c >>> +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c >>> @@ -16,6 +16,11 @@ >>> #include <linux/gpio.h> >>> #include <linux/gpio/machine.h> >>> #include <linux/platform_data/gpio-davinci.h> >>> +#include <linux/platform_data/ti-aemif.h> >>> +#include <linux/mtd/rawnand.h> >>> +#include <linux/mtd/partitions.h> >>> +#include <linux/platform_data/mtd-davinci.h> >>> +#include <linux/platform_data/mtd-davinci-aemif.h> >>> #include <linux/regulator/machine.h> >>> >>> #include <asm/mach-types.h> >>> @@ -162,6 +167,129 @@ static __init void omapl138_hawk_mmc_init(void) >>> gpiod_remove_lookup_table(&mmc_gpios_table); >>> } >>> >>> +static struct mtd_partition omapl138_hawk_nandflash_partition[] = { >>> + { >>> + .name = "u-boot env", >>> + .offset = 0, >>> + .size = SZ_128K, >>> + .mask_flags = MTD_WRITEABLE, >>> + }, >>> + { >>> + .name = "u-boot", >>> + .offset = MTDPART_OFS_APPEND, >>> + .size = SZ_128K, >> >> Can you make it 512K as it is in da850-lcdk.dts ? >> >>> + .mask_flags = MTD_WRITEABLE, >>> + }, >>> + { >>> + .name = "free space", >>> + .offset = MTDPART_OFS_APPEND, >>> + .size = MTDPART_SIZ_FULL, >>> + .mask_flags = 0, >>> + }, >>> +}; >> >>> +static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = { >>> + { >>> + .cs = 3, >>> + } >>> +}; >>> + >>> +static struct platform_device omapl138_hawk_aemif_devices[] = { >>> + { >>> + .name = "davinci_nand", >>> + .id = 1, >> >> Is there a reason for .id to be set to 1 here? Ideally it should be -1, >> I think since there is a single NAND on the board. >> > > The davinci nand driver uses pdev->id as the chipselect number. I > guess this should be in the platform data. I'll send a patch for that.
I remember that now. No need to change that, I think. Just a comment here would suffice.
Thanks, Sekhar
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