ARM: davinci: omapl138-hawk: add aemif & nand support
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
Sekhar Nori
parent
63a9a4f928
commit
92eb49089c
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@ -15,7 +15,12 @@
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/rawnand.h>
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#include <linux/platform_data/gpio-davinci.h>
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#include <linux/platform_data/mtd-davinci.h>
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#include <linux/platform_data/mtd-davinci-aemif.h>
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#include <linux/platform_data/ti-aemif.h>
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#include <linux/regulator/machine.h>
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#include <asm/mach-types.h>
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@ -166,6 +171,129 @@ mmc_setup_mmcsd_fail:
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gpiod_remove_lookup_table(&mmc_gpios_table);
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}
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static struct mtd_partition omapl138_hawk_nandflash_partition[] = {
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{
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.name = "u-boot env",
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.offset = 0,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "u-boot",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_512K,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "free space",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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},
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};
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static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
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.wsetup = 24,
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.wstrobe = 21,
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.whold = 14,
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.rsetup = 19,
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.rstrobe = 50,
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.rhold = 0,
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.ta = 20,
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};
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static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
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.core_chipsel = 1,
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.parts = omapl138_hawk_nandflash_partition,
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.nr_parts = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
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.ecc_mode = NAND_ECC_HW,
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.ecc_bits = 4,
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.bbt_options = NAND_BBT_USE_FLASH,
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.options = NAND_BUSWIDTH_16,
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.timing = &omapl138_hawk_nandflash_timing,
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.mask_chipsel = 0,
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.mask_ale = 0,
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.mask_cle = 0,
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};
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static struct resource omapl138_hawk_nandflash_resource[] = {
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{
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.start = DA8XX_AEMIF_CS3_BASE,
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.end = DA8XX_AEMIF_CS3_BASE + SZ_32M,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = DA8XX_AEMIF_CTL_BASE,
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.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct resource omapl138_hawk_aemif_resource[] = {
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{
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.start = DA8XX_AEMIF_CTL_BASE,
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.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = {
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{
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.cs = 3,
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}
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};
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static struct platform_device omapl138_hawk_aemif_devices[] = {
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{
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.name = "davinci_nand",
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.id = -1,
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.dev = {
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.platform_data = &omapl138_hawk_nandflash_data,
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},
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.resource = omapl138_hawk_nandflash_resource,
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.num_resources = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
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}
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};
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static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
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.cs_offset = 2,
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.abus_data = omapl138_hawk_aemif_abus_data,
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.num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
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.sub_devices = omapl138_hawk_aemif_devices,
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.num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
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};
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static struct platform_device omapl138_hawk_aemif_device = {
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.name = "ti-aemif",
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.id = -1,
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.dev = {
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.platform_data = &omapl138_hawk_aemif_pdata,
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},
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.resource = omapl138_hawk_aemif_resource,
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.num_resources = ARRAY_SIZE(omapl138_hawk_aemif_resource),
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};
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static const short omapl138_hawk_nand_pins[] = {
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DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
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DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
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DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
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DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
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DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
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DA850_EMA_A_1, DA850_EMA_A_2,
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-1
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};
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static int omapl138_hawk_register_aemif(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
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if (ret)
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pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
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return platform_device_register(&omapl138_hawk_aemif_device);
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}
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static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id);
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static da8xx_ocic_handler_t hawk_usb_ocic_handler;
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@ -298,6 +426,10 @@ static __init void omapl138_hawk_init(void)
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omapl138_hawk_usb_init();
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ret = omapl138_hawk_register_aemif();
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if (ret)
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pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
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ret = da8xx_register_watchdog();
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if (ret)
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pr_warn("%s: watchdog registration failed: %d\n",
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