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ARM: davinci: omapl138-hawk: add aemif & nand support

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We now have support for aemif & nand from board files. As an example
add support for nand to da850-hawk.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Bartosz Golaszewski 2018-06-28 11:57:41 +02:00 committed by Sekhar Nori
parent 63a9a4f928
commit 92eb49089c
1 changed files with 132 additions and 0 deletions
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132
arch/arm/mach-davinci/board-omapl138-hawk.c
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@ -15,7 +15,12 @@
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/rawnand.h>
#include <linux/platform_data/gpio-davinci.h>
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
#include <linux/platform_data/ti-aemif.h>
#include <linux/regulator/machine.h>
#include <asm/mach-types.h>
@ -166,6 +171,129 @@ mmc_setup_mmcsd_fail:
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_512K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "free space",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
.wsetup = 24,
.wstrobe = 21,
.whold = 14,
.rsetup = 19,
.rstrobe = 50,
.rhold = 0,
.ta = 20,
};
static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
.core_chipsel = 1,
.parts = omapl138_hawk_nandflash_partition,
.nr_parts = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
.ecc_bits = 4,
.bbt_options = NAND_BBT_USE_FLASH,
.options = NAND_BUSWIDTH_16,
.timing = &omapl138_hawk_nandflash_timing,
.mask_chipsel = 0,
.mask_ale = 0,
.mask_cle = 0,
};
static struct resource omapl138_hawk_nandflash_resource[] = {
{
.start = DA8XX_AEMIF_CS3_BASE,
.end = DA8XX_AEMIF_CS3_BASE + SZ_32M,
.flags = IORESOURCE_MEM,
},
{
.start = DA8XX_AEMIF_CTL_BASE,
.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
.flags = IORESOURCE_MEM,
},
};
static struct resource omapl138_hawk_aemif_resource[] = {
{
.start = DA8XX_AEMIF_CTL_BASE,
.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
.flags = IORESOURCE_MEM,
}
};
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,
.dev = {
.platform_data = &omapl138_hawk_nandflash_data,
},
.resource = omapl138_hawk_nandflash_resource,
.num_resources = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
}
};
static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
.cs_offset = 2,
.abus_data = omapl138_hawk_aemif_abus_data,
.num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
.sub_devices = omapl138_hawk_aemif_devices,
.num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
};
static struct platform_device omapl138_hawk_aemif_device = {
.name = "ti-aemif",
.id = -1,
.dev = {
.platform_data = &omapl138_hawk_aemif_pdata,
},
.resource = omapl138_hawk_aemif_resource,
.num_resources = ARRAY_SIZE(omapl138_hawk_aemif_resource),
};
static const short omapl138_hawk_nand_pins[] = {
DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
DA850_EMA_A_1, DA850_EMA_A_2,
-1
};
static int omapl138_hawk_register_aemif(void)
{
int ret;
ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
if (ret)
pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
return platform_device_register(&omapl138_hawk_aemif_device);
}
static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id);
static da8xx_ocic_handler_t hawk_usb_ocic_handler;
@ -298,6 +426,10 @@ static __init void omapl138_hawk_init(void)
omapl138_hawk_usb_init();
ret = omapl138_hawk_register_aemif();
if (ret)
pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
ret = da8xx_register_watchdog();
if (ret)
pr_warn("%s: watchdog registration failed: %d\n",