mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
596 lines
12 KiB
596 lines
12 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* linux/arch/arm/mach-omap2/board-n8x0.c |
|
* |
|
* Copyright (C) 2005-2009 Nokia Corporation |
|
* Author: Juha Yrjola <[email protected]> |
|
* |
|
* Modified from mach-omap2/board-generic.c |
|
*/ |
|
|
|
#include <linux/clk.h> |
|
#include <linux/delay.h> |
|
#include <linux/gpio.h> |
|
#include <linux/init.h> |
|
#include <linux/io.h> |
|
#include <linux/irq.h> |
|
#include <linux/stddef.h> |
|
#include <linux/i2c.h> |
|
#include <linux/spi/spi.h> |
|
#include <linux/usb/musb.h> |
|
#include <linux/mmc/host.h> |
|
#include <linux/platform_data/spi-omap2-mcspi.h> |
|
#include <linux/platform_data/mmc-omap.h> |
|
#include <linux/mfd/menelaus.h> |
|
#include <sound/tlv320aic3x.h> |
|
|
|
#include <asm/mach/arch.h> |
|
#include <asm/mach-types.h> |
|
|
|
#include "common.h" |
|
#include "mmc.h" |
|
#include "soc.h" |
|
#include "common-board-devices.h" |
|
|
|
#define TUSB6010_ASYNC_CS 1 |
|
#define TUSB6010_SYNC_CS 4 |
|
#define TUSB6010_GPIO_INT 58 |
|
#define TUSB6010_GPIO_ENABLE 0 |
|
#define TUSB6010_DMACHAN 0x3f |
|
|
|
#define NOKIA_N810_WIMAX (1 << 2) |
|
#define NOKIA_N810 (1 << 1) |
|
#define NOKIA_N800 (1 << 0) |
|
|
|
static u32 board_caps; |
|
|
|
#define board_is_n800() (board_caps & NOKIA_N800) |
|
#define board_is_n810() (board_caps & NOKIA_N810) |
|
#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX) |
|
|
|
static void board_check_revision(void) |
|
{ |
|
if (of_machine_is_compatible("nokia,n800")) |
|
board_caps = NOKIA_N800; |
|
else if (of_machine_is_compatible("nokia,n810")) |
|
board_caps = NOKIA_N810; |
|
else if (of_machine_is_compatible("nokia,n810-wimax")) |
|
board_caps = NOKIA_N810_WIMAX; |
|
|
|
if (!board_caps) |
|
pr_err("Unknown board\n"); |
|
} |
|
|
|
#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) |
|
/* |
|
* Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and |
|
* 1.5 V voltage regulators of PM companion chip. Companion chip will then |
|
* provide then PGOOD signal to TUSB6010 which will release it from reset. |
|
*/ |
|
static int tusb_set_power(int state) |
|
{ |
|
int i, retval = 0; |
|
|
|
if (state) { |
|
gpio_set_value(TUSB6010_GPIO_ENABLE, 1); |
|
msleep(1); |
|
|
|
/* Wait until TUSB6010 pulls INT pin down */ |
|
i = 100; |
|
while (i && gpio_get_value(TUSB6010_GPIO_INT)) { |
|
msleep(1); |
|
i--; |
|
} |
|
|
|
if (!i) { |
|
printk(KERN_ERR "tusb: powerup failed\n"); |
|
retval = -ENODEV; |
|
} |
|
} else { |
|
gpio_set_value(TUSB6010_GPIO_ENABLE, 0); |
|
msleep(10); |
|
} |
|
|
|
return retval; |
|
} |
|
|
|
static struct musb_hdrc_config musb_config = { |
|
.multipoint = 1, |
|
.dyn_fifo = 1, |
|
.num_eps = 16, |
|
.ram_bits = 12, |
|
}; |
|
|
|
static struct musb_hdrc_platform_data tusb_data = { |
|
.mode = MUSB_OTG, |
|
.set_power = tusb_set_power, |
|
.min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ |
|
.power = 100, /* Max 100 mA VBUS for host mode */ |
|
.config = &musb_config, |
|
}; |
|
|
|
static void __init n8x0_usb_init(void) |
|
{ |
|
int ret = 0; |
|
static const char announce[] __initconst = KERN_INFO "TUSB 6010\n"; |
|
|
|
/* PM companion chip power control pin */ |
|
ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW, |
|
"TUSB6010 enable"); |
|
if (ret != 0) { |
|
printk(KERN_ERR "Could not get TUSB power GPIO%i\n", |
|
TUSB6010_GPIO_ENABLE); |
|
return; |
|
} |
|
tusb_set_power(0); |
|
|
|
ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, |
|
TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, |
|
TUSB6010_GPIO_INT, TUSB6010_DMACHAN); |
|
if (ret != 0) |
|
goto err; |
|
|
|
printk(announce); |
|
|
|
return; |
|
|
|
err: |
|
gpio_free(TUSB6010_GPIO_ENABLE); |
|
} |
|
#else |
|
|
|
static void __init n8x0_usb_init(void) {} |
|
|
|
#endif /*CONFIG_USB_MUSB_TUSB6010 */ |
|
|
|
|
|
static struct omap2_mcspi_device_config p54spi_mcspi_config = { |
|
.turbo_mode = 0, |
|
}; |
|
|
|
static struct spi_board_info n800_spi_board_info[] __initdata = { |
|
{ |
|
.modalias = "p54spi", |
|
.bus_num = 2, |
|
.chip_select = 0, |
|
.max_speed_hz = 48000000, |
|
.controller_data = &p54spi_mcspi_config, |
|
}, |
|
}; |
|
|
|
#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP) |
|
|
|
/* |
|
* On both N800 and N810, only the first of the two MMC controllers is in use. |
|
* The two MMC slots are multiplexed via Menelaus companion chip over I2C. |
|
* On N800, both slots are powered via Menelaus. On N810, only one of the |
|
* slots is powered via Menelaus. The N810 EMMC is powered via GPIO. |
|
* |
|
* VMMC slot 1 on both N800 and N810 |
|
* VDCDC3_APE and VMCS2_APE slot 2 on N800 |
|
* GPIO23 and GPIO9 slot 2 EMMC on N810 |
|
* |
|
*/ |
|
#define N8X0_SLOT_SWITCH_GPIO 96 |
|
#define N810_EMMC_VSD_GPIO 23 |
|
#define N810_EMMC_VIO_GPIO 9 |
|
|
|
static int slot1_cover_open; |
|
static int slot2_cover_open; |
|
static struct device *mmc_device; |
|
|
|
static int n8x0_mmc_switch_slot(struct device *dev, int slot) |
|
{ |
|
#ifdef CONFIG_MMC_DEBUG |
|
dev_dbg(dev, "Choose slot %d\n", slot + 1); |
|
#endif |
|
gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); |
|
return 0; |
|
} |
|
|
|
static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, |
|
int power_on, int vdd) |
|
{ |
|
int mV; |
|
|
|
#ifdef CONFIG_MMC_DEBUG |
|
dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, |
|
power_on ? "on" : "off", vdd); |
|
#endif |
|
if (slot == 0) { |
|
if (!power_on) |
|
return menelaus_set_vmmc(0); |
|
switch (1 << vdd) { |
|
case MMC_VDD_33_34: |
|
case MMC_VDD_32_33: |
|
case MMC_VDD_31_32: |
|
mV = 3100; |
|
break; |
|
case MMC_VDD_30_31: |
|
mV = 3000; |
|
break; |
|
case MMC_VDD_28_29: |
|
mV = 2800; |
|
break; |
|
case MMC_VDD_165_195: |
|
mV = 1850; |
|
break; |
|
default: |
|
BUG(); |
|
} |
|
return menelaus_set_vmmc(mV); |
|
} else { |
|
if (!power_on) |
|
return menelaus_set_vdcdc(3, 0); |
|
switch (1 << vdd) { |
|
case MMC_VDD_33_34: |
|
case MMC_VDD_32_33: |
|
mV = 3300; |
|
break; |
|
case MMC_VDD_30_31: |
|
case MMC_VDD_29_30: |
|
mV = 3000; |
|
break; |
|
case MMC_VDD_28_29: |
|
case MMC_VDD_27_28: |
|
mV = 2800; |
|
break; |
|
case MMC_VDD_24_25: |
|
case MMC_VDD_23_24: |
|
mV = 2400; |
|
break; |
|
case MMC_VDD_22_23: |
|
case MMC_VDD_21_22: |
|
mV = 2200; |
|
break; |
|
case MMC_VDD_20_21: |
|
mV = 2000; |
|
break; |
|
case MMC_VDD_165_195: |
|
mV = 1800; |
|
break; |
|
default: |
|
BUG(); |
|
} |
|
return menelaus_set_vdcdc(3, mV); |
|
} |
|
return 0; |
|
} |
|
|
|
static void n810_set_power_emmc(struct device *dev, |
|
int power_on) |
|
{ |
|
dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); |
|
|
|
if (power_on) { |
|
gpio_set_value(N810_EMMC_VSD_GPIO, 1); |
|
msleep(1); |
|
gpio_set_value(N810_EMMC_VIO_GPIO, 1); |
|
msleep(1); |
|
} else { |
|
gpio_set_value(N810_EMMC_VIO_GPIO, 0); |
|
msleep(50); |
|
gpio_set_value(N810_EMMC_VSD_GPIO, 0); |
|
msleep(50); |
|
} |
|
} |
|
|
|
static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, |
|
int vdd) |
|
{ |
|
if (board_is_n800() || slot == 0) |
|
return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); |
|
|
|
n810_set_power_emmc(dev, power_on); |
|
|
|
return 0; |
|
} |
|
|
|
static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) |
|
{ |
|
int r; |
|
|
|
dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, |
|
bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); |
|
BUG_ON(slot != 0 && slot != 1); |
|
slot++; |
|
switch (bus_mode) { |
|
case MMC_BUSMODE_OPENDRAIN: |
|
r = menelaus_set_mmc_opendrain(slot, 1); |
|
break; |
|
case MMC_BUSMODE_PUSHPULL: |
|
r = menelaus_set_mmc_opendrain(slot, 0); |
|
break; |
|
default: |
|
BUG(); |
|
} |
|
if (r != 0 && printk_ratelimit()) |
|
dev_err(dev, "MMC: unable to set bus mode for slot %d\n", |
|
slot); |
|
return r; |
|
} |
|
|
|
static int n8x0_mmc_get_cover_state(struct device *dev, int slot) |
|
{ |
|
slot++; |
|
BUG_ON(slot != 1 && slot != 2); |
|
if (slot == 1) |
|
return slot1_cover_open; |
|
else |
|
return slot2_cover_open; |
|
} |
|
|
|
static void n8x0_mmc_callback(void *data, u8 card_mask) |
|
{ |
|
int bit, *openp, index; |
|
|
|
if (board_is_n800()) { |
|
bit = 1 << 1; |
|
openp = &slot2_cover_open; |
|
index = 1; |
|
} else { |
|
bit = 1; |
|
openp = &slot1_cover_open; |
|
index = 0; |
|
} |
|
|
|
if (card_mask & bit) |
|
*openp = 1; |
|
else |
|
*openp = 0; |
|
|
|
#ifdef CONFIG_MMC_OMAP |
|
omap_mmc_notify_cover_event(mmc_device, index, *openp); |
|
#else |
|
pr_warn("MMC: notify cover event not available\n"); |
|
#endif |
|
} |
|
|
|
static int n8x0_mmc_late_init(struct device *dev) |
|
{ |
|
int r, bit, *openp; |
|
int vs2sel; |
|
|
|
mmc_device = dev; |
|
|
|
r = menelaus_set_slot_sel(1); |
|
if (r < 0) |
|
return r; |
|
|
|
if (board_is_n800()) |
|
vs2sel = 0; |
|
else |
|
vs2sel = 2; |
|
|
|
r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); |
|
if (r < 0) |
|
return r; |
|
|
|
n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ |
|
n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); |
|
|
|
r = menelaus_set_mmc_slot(1, 1, 0, 1); |
|
if (r < 0) |
|
return r; |
|
r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); |
|
if (r < 0) |
|
return r; |
|
|
|
r = menelaus_get_slot_pin_states(); |
|
if (r < 0) |
|
return r; |
|
|
|
if (board_is_n800()) { |
|
bit = 1 << 1; |
|
openp = &slot2_cover_open; |
|
} else { |
|
bit = 1; |
|
openp = &slot1_cover_open; |
|
slot2_cover_open = 0; |
|
} |
|
|
|
/* All slot pin bits seem to be inversed until first switch change */ |
|
if (r == 0xf || r == (0xf & ~bit)) |
|
r = ~r; |
|
|
|
if (r & bit) |
|
*openp = 1; |
|
else |
|
*openp = 0; |
|
|
|
r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); |
|
|
|
return r; |
|
} |
|
|
|
static void n8x0_mmc_shutdown(struct device *dev) |
|
{ |
|
int vs2sel; |
|
|
|
if (board_is_n800()) |
|
vs2sel = 0; |
|
else |
|
vs2sel = 2; |
|
|
|
menelaus_set_mmc_slot(1, 0, 0, 0); |
|
menelaus_set_mmc_slot(2, 0, vs2sel, 0); |
|
} |
|
|
|
static void n8x0_mmc_cleanup(struct device *dev) |
|
{ |
|
menelaus_unregister_mmc_callback(); |
|
|
|
gpio_free(N8X0_SLOT_SWITCH_GPIO); |
|
|
|
if (board_is_n810()) { |
|
gpio_free(N810_EMMC_VSD_GPIO); |
|
gpio_free(N810_EMMC_VIO_GPIO); |
|
} |
|
} |
|
|
|
/* |
|
* MMC controller1 has two slots that are multiplexed via I2C. |
|
* MMC controller2 is not in use. |
|
*/ |
|
static struct omap_mmc_platform_data mmc1_data = { |
|
.nr_slots = 0, |
|
.switch_slot = n8x0_mmc_switch_slot, |
|
.init = n8x0_mmc_late_init, |
|
.cleanup = n8x0_mmc_cleanup, |
|
.shutdown = n8x0_mmc_shutdown, |
|
.max_freq = 24000000, |
|
.slots[0] = { |
|
.wires = 4, |
|
.set_power = n8x0_mmc_set_power, |
|
.set_bus_mode = n8x0_mmc_set_bus_mode, |
|
.get_cover_state = n8x0_mmc_get_cover_state, |
|
.ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | |
|
MMC_VDD_32_33 | MMC_VDD_33_34, |
|
.name = "internal", |
|
}, |
|
.slots[1] = { |
|
.set_power = n8x0_mmc_set_power, |
|
.set_bus_mode = n8x0_mmc_set_bus_mode, |
|
.get_cover_state = n8x0_mmc_get_cover_state, |
|
.ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | |
|
MMC_VDD_21_22 | MMC_VDD_22_23 | |
|
MMC_VDD_23_24 | MMC_VDD_24_25 | |
|
MMC_VDD_27_28 | MMC_VDD_28_29 | |
|
MMC_VDD_29_30 | MMC_VDD_30_31 | |
|
MMC_VDD_32_33 | MMC_VDD_33_34, |
|
.name = "external", |
|
}, |
|
}; |
|
|
|
static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; |
|
|
|
static struct gpio n810_emmc_gpios[] __initdata = { |
|
{ N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, |
|
{ N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, |
|
}; |
|
|
|
static void __init n8x0_mmc_init(void) |
|
{ |
|
int err; |
|
|
|
if (board_is_n810()) { |
|
mmc1_data.slots[0].name = "external"; |
|
|
|
/* |
|
* Some Samsung Movinand chips do not like open-ended |
|
* multi-block reads and fall to braind-dead state |
|
* while doing so. Reducing the number of blocks in |
|
* the transfer or delays in clock disable do not help |
|
*/ |
|
mmc1_data.slots[1].name = "internal"; |
|
mmc1_data.slots[1].ban_openended = 1; |
|
} |
|
|
|
err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, |
|
"MMC slot switch"); |
|
if (err) |
|
return; |
|
|
|
if (board_is_n810()) { |
|
err = gpio_request_array(n810_emmc_gpios, |
|
ARRAY_SIZE(n810_emmc_gpios)); |
|
if (err) { |
|
gpio_free(N8X0_SLOT_SWITCH_GPIO); |
|
return; |
|
} |
|
} |
|
|
|
mmc1_data.nr_slots = 2; |
|
mmc_data[0] = &mmc1_data; |
|
} |
|
#else |
|
static struct omap_mmc_platform_data mmc1_data; |
|
void __init n8x0_mmc_init(void) |
|
{ |
|
} |
|
#endif /* CONFIG_MMC_OMAP */ |
|
|
|
#ifdef CONFIG_MENELAUS |
|
|
|
static int n8x0_auto_sleep_regulators(void) |
|
{ |
|
u32 val; |
|
int ret; |
|
|
|
val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ |
|
| EN_VAUX_SLEEP | EN_VIO_SLEEP \ |
|
| EN_VMEM_SLEEP | EN_DC3_SLEEP \ |
|
| EN_VC_SLEEP | EN_DC2_SLEEP; |
|
|
|
ret = menelaus_set_regulator_sleep(1, val); |
|
if (ret < 0) { |
|
pr_err("Could not set regulators to sleep on menelaus: %u\n", |
|
ret); |
|
return ret; |
|
} |
|
return 0; |
|
} |
|
|
|
static int n8x0_auto_voltage_scale(void) |
|
{ |
|
int ret; |
|
|
|
ret = menelaus_set_vcore_hw(1400, 1050); |
|
if (ret < 0) { |
|
pr_err("Could not set VCORE voltage on menelaus: %u\n", ret); |
|
return ret; |
|
} |
|
return 0; |
|
} |
|
|
|
static int n8x0_menelaus_late_init(struct device *dev) |
|
{ |
|
int ret; |
|
|
|
ret = n8x0_auto_voltage_scale(); |
|
if (ret < 0) |
|
return ret; |
|
ret = n8x0_auto_sleep_regulators(); |
|
if (ret < 0) |
|
return ret; |
|
return 0; |
|
} |
|
|
|
#else |
|
static int n8x0_menelaus_late_init(struct device *dev) |
|
{ |
|
return 0; |
|
} |
|
#endif |
|
|
|
struct menelaus_platform_data n8x0_menelaus_platform_data = { |
|
.late_init = n8x0_menelaus_late_init, |
|
}; |
|
|
|
struct aic3x_pdata n810_aic33_data = { |
|
.gpio_reset = 118, |
|
}; |
|
|
|
static int __init n8x0_late_initcall(void) |
|
{ |
|
if (!board_caps) |
|
return -ENODEV; |
|
|
|
n8x0_mmc_init(); |
|
n8x0_usb_init(); |
|
|
|
return 0; |
|
} |
|
omap_late_initcall(n8x0_late_initcall); |
|
|
|
/* |
|
* Legacy init pdata init for n8x0. Note that we want to follow the |
|
* I2C bus numbering starting at 0 for device tree like other omaps. |
|
*/ |
|
void * __init n8x0_legacy_init(void) |
|
{ |
|
board_check_revision(); |
|
spi_register_board_info(n800_spi_board_info, |
|
ARRAY_SIZE(n800_spi_board_info)); |
|
return &mmc1_data; |
|
}
|
|
|