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linux/arch/arm/mach-davinci/board-omapl138-hawk.c
Bartosz Golaszewski ed667776d6 ARM: davinci: omapl138-hawk: add missing regulator constraints for OHCI 
We need to enable status changes for the fixed power supply for the USB
controller.

Fixes: 1d272894ec ("ARM: davinci: omapl138-hawk: add a fixed regulator for ohci-da8xx")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-07-02 20:18:33 +05:30

455 lines
11 KiB
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/*
* Hawkboard.org based on TI's OMAP-L138 Platform
*
* Initial code: Syed Mohammed Khasim
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of
* any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/console.h>
#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/fixed.h>
#include <linux/regulator/machine.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
#include <mach/da8xx.h>
#include <mach/mux.h>
#define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
#define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
#define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
static short omapl138_hawk_mii_pins[] __initdata = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
DA850_MDIO_D,
-1
};
static __init void omapl138_hawk_config_emac(void)
{
void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
val = __raw_readl(cfgchip3);
val &= ~BIT(8);
ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
if (ret) {
pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
return;
}
/* configure the CFGCHIP3 register for MII */
__raw_writel(val, cfgchip3);
pr_info("EMAC: MII PHY configured\n");
soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
ret = da8xx_register_emac();
if (ret)
pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
}
/*
* The following EDMA channels/slots are not being used by drivers (for
* example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
* hence they are being reserved for codecs on the DSP side.
*/
static const s16 da850_dma0_rsv_chans[][2] = {
/* (offset, number) */
{ 8, 6},
{24, 4},
{30, 2},
{-1, -1}
};
static const s16 da850_dma0_rsv_slots[][2] = {
/* (offset, number) */
{ 8, 6},
{24, 4},
{30, 50},
{-1, -1}
};
static const s16 da850_dma1_rsv_chans[][2] = {
/* (offset, number) */
{ 0, 28},
{30, 2},
{-1, -1}
};
static const s16 da850_dma1_rsv_slots[][2] = {
/* (offset, number) */
{ 0, 28},
{30, 90},
{-1, -1}
};
static struct edma_rsv_info da850_edma_cc0_rsv = {
.rsv_chans = da850_dma0_rsv_chans,
.rsv_slots = da850_dma0_rsv_slots,
};
static struct edma_rsv_info da850_edma_cc1_rsv = {
.rsv_chans = da850_dma1_rsv_chans,
.rsv_slots = da850_dma1_rsv_slots,
};
static struct edma_rsv_info *da850_edma_rsv[2] = {
&da850_edma_cc0_rsv,
&da850_edma_cc1_rsv,
};
static const short hawk_mmcsd0_pins[] = {
DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
DA850_GPIO3_12, DA850_GPIO3_13,
-1
};
#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0",
.table = {
GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW),
},
};
static struct davinci_mmc_config da850_mmc_config = {
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
};
static __init void omapl138_hawk_mmc_init(void)
{
int ret;
ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
if (ret) {
pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
return;
}
gpiod_add_lookup_table(&mmc_gpios_table);
ret = da8xx_register_mmcsd0(&da850_mmc_config);
if (ret) {
pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
goto mmc_setup_mmcsd_fail;
}
return;
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 const short da850_hawk_usb11_pins[] = {
DA850_GPIO2_4, DA850_GPIO6_13,
-1
};
static struct regulator_consumer_supply hawk_usb_supplies[] = {
REGULATOR_SUPPLY("vbus", NULL),
};
static struct regulator_init_data hawk_usb_vbus_data = {
.consumer_supplies = hawk_usb_supplies,
.num_consumer_supplies = ARRAY_SIZE(hawk_usb_supplies),
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static struct fixed_voltage_config hawk_usb_vbus = {
.supply_name = "vbus",
.microvolts = 3300000,
.init_data = &hawk_usb_vbus_data,
};
static struct platform_device hawk_usb_vbus_device = {
.name = "reg-fixed-voltage",
.id = 0,
.dev = {
.platform_data = &hawk_usb_vbus,
},
};
static struct gpiod_lookup_table hawk_usb_oc_gpio_lookup = {
.dev_id = "ohci-da8xx",
.table = {
GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0),
{ }
},
};
static struct gpiod_lookup_table hawk_usb_vbus_gpio_lookup = {
.dev_id = "reg-fixed-voltage.0",
.table = {
GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, NULL, 0),
{ }
},
};
static struct gpiod_lookup_table *hawk_usb_gpio_lookups[] = {
&hawk_usb_oc_gpio_lookup,
&hawk_usb_vbus_gpio_lookup,
};
static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
/* TPS2087 switch @ 5V */
.potpgt = (3 + 1) / 2, /* 3 ms max */
};
static __init void omapl138_hawk_usb_init(void)
{
int ret;
ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
if (ret) {
pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
return;
}
ret = da8xx_register_usb_phy_clocks();
if (ret)
pr_warn("%s: USB PHY CLK registration failed: %d\n",
__func__, ret);
gpiod_add_lookup_tables(hawk_usb_gpio_lookups,
ARRAY_SIZE(hawk_usb_gpio_lookups));
ret = da8xx_register_usb_phy();
if (ret)
pr_warn("%s: USB PHY registration failed: %d\n",
__func__, ret);
ret = platform_device_register(&hawk_usb_vbus_device);
if (ret) {
pr_warn("%s: Unable to register the vbus supply\n", __func__);
return;
}
ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
if (ret)
pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
return;
}
static __init void omapl138_hawk_init(void)
{
int ret;
da850_register_clocks();
ret = da850_register_gpio();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
davinci_serial_init(da8xx_serial_device);
omapl138_hawk_config_emac();
ret = da850_register_edma(da850_edma_rsv);
if (ret)
pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
omapl138_hawk_mmc_init();
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",
__func__, ret);
ret = da8xx_register_rproc();
if (ret)
pr_warn("%s: dsp/rproc registration failed: %d\n",
__func__, ret);
regulator_has_full_constraints();
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init omapl138_hawk_console_init(void)
{
if (!machine_is_omapl138_hawkboard())
return 0;
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(omapl138_hawk_console_init);
#endif
static void __init omapl138_hawk_map_io(void)
{
da850_init();
}
MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
.atag_offset = 0x100,
.map_io = omapl138_hawk_map_io,
.init_irq = da850_init_irq,
.init_time = da850_init_time,
.init_machine = omapl138_hawk_init,
.init_late = davinci_init_late,
.dma_zone_size = SZ_128M,
.reserve = da8xx_rproc_reserve_cma,
MACHINE_END
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