[PATCH 4/4] introduce-gta02-beachhead.patch
Andy Green
andy at openmoko.com
Fri Feb 20 09:42:50 CET 2009
This patch introduces the Openmoko GTA02 machine definition.
Again much of the code is based on Harald Welte's work, although it
has been largely rewritten several times.
This is intended to be the minimum machine definition to boot and
be able to run a rootfs from NAND on GTA02 / Freerunner. It does
not bring up the framebuffer / Glamo and lacks many other peripheral
drivers from outside the SoC. But once we have this basis in
mainline kernel, we will be able to introduce the other drivers
and add them here.
Signed-off-by: Andy Green <andy at openmoko.com>
---
arch/arm/mach-s3c2442/Kconfig | 22 +
arch/arm/mach-s3c2442/Makefile | 2
arch/arm/mach-s3c2442/include/mach/gta02.h | 87 ++++
arch/arm/mach-s3c2442/mach-gta02.c | 656 ++++++++++++++++++++++++++++
4 files changed, 767 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-s3c2442/include/mach/gta02.h
create mode 100644 arch/arm/mach-s3c2442/mach-gta02.c
diff --git a/arch/arm/mach-s3c2442/Kconfig b/arch/arm/mach-s3c2442/Kconfig
index b289d19..27453f0 100644
--- a/arch/arm/mach-s3c2442/Kconfig
+++ b/arch/arm/mach-s3c2442/Kconfig
@@ -11,11 +11,21 @@ config CPU_S3C2442
select S3C2410_CLOCK
select S3C2410_GPIO
select S3C2410_PM if PM
+ select S3C2440_DMA if S3C2410_DMA
select CPU_S3C244X
select CPU_LLSERIAL_S3C2440
help
Support for S3C2442 Samsung Mobile CPU based systems.
+config S3C2440_C_FIQ
+ bool "FIQ ISR support in C"
+ depends on ARCH_S3C2410
+ select FIQ
+ help
+ Support for S3C2440 FIQ support in C -- see
+ ./arch/arm/mach-s3c2440/fiq_c_isr.c
+
+
menu "S3C2442 Machines"
@@ -24,6 +34,18 @@ config SMDK2440_CPU2442
depends on ARCH_S3C2440
select CPU_S3C2442
+config MACH_NEO1973_GTA02
+ bool "FIC Neo1973 GSM Phone (GTA02 Hardware)"
+ select CPU_S3C2442
+ select SENSORS_PCF50633
+ select POWER_SUPPLY
+ select GTA02_HDQ
+ select MACH_NEO1973
+ select S3C2410_PWM
+ select S3C2410_CLOCK
+ help
+ Say Y here if you are using the FIC Neo1973 GSM Phone
+
endmenu
diff --git a/arch/arm/mach-s3c2442/Makefile b/arch/arm/mach-s3c2442/Makefile
index 2a909c6..2a19113 100644
--- a/arch/arm/mach-s3c2442/Makefile
+++ b/arch/arm/mach-s3c2442/Makefile
@@ -12,5 +12,7 @@ obj- :=
obj-$(CONFIG_CPU_S3C2442) += s3c2442.o
obj-$(CONFIG_CPU_S3C2442) += clock.o
+obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o
+
# Machine support
diff --git a/arch/arm/mach-s3c2442/include/mach/gta02.h b/arch/arm/mach-s3c2442/include/mach/gta02.h
new file mode 100644
index 0000000..602157d
--- /dev/null
+++ b/arch/arm/mach-s3c2442/include/mach/gta02.h
@@ -0,0 +1,87 @@
+#ifndef _GTA02_H
+#define _GTA02_H
+
+#include <mach/regs-gpio.h>
+#include <mach/irqs.h>
+
+/* Different hardware revisions, passed in ATAG_REVISION by u-boot */
+#define GTA02v1_SYSTEM_REV 0x00000310
+#define GTA02v2_SYSTEM_REV 0x00000320
+#define GTA02v3_SYSTEM_REV 0x00000330
+#define GTA02v4_SYSTEM_REV 0x00000340
+#define GTA02v5_SYSTEM_REV 0x00000350
+/* since A7 is basically same as A6, we use A6 PCB ID */
+#define GTA02v6_SYSTEM_REV 0x00000360
+
+#define GTA02_GPIO_n3DL_GSM S3C2410_GPA13 /* v1 + v2 + v3 only */
+
+#define GTA02_GPIO_PWR_LED1 S3C2410_GPB0
+#define GTA02_GPIO_PWR_LED2 S3C2410_GPB1
+#define GTA02_GPIO_AUX_LED S3C2410_GPB2
+#define GTA02_GPIO_VIBRATOR_ON S3C2410_GPB3
+#define GTA02_GPIO_MODEM_RST S3C2410_GPB5
+#define GTA02_GPIO_BT_EN S3C2410_GPB6
+#define GTA02_GPIO_MODEM_ON S3C2410_GPB7
+#define GTA02_GPIO_EXTINT8 S3C2410_GPB8
+#define GTA02_GPIO_USB_PULLUP S3C2410_GPB9
+
+#define GTA02_GPIO_PIO5 S3C2410_GPC5 /* v3 + v4 only */
+
+#define GTA02v3_GPIO_nG1_CS S3C2410_GPD12 /* v3 + v4 only */
+#define GTA02v3_GPIO_nG2_CS S3C2410_GPD13 /* v3 + v4 only */
+#define GTA02v5_GPIO_HDQ S3C2410_GPD14 /* v5 + */
+
+#define GTA02_GPIO_nG1_INT S3C2410_GPF0
+#define GTA02_GPIO_IO1 S3C2410_GPF1
+#define GTA02_GPIO_PIO_2 S3C2410_GPF2 /* v2 + v3 + v4 only */
+#define GTA02_GPIO_JACK_INSERT S3C2410_GPF4
+#define GTA02_GPIO_WLAN_GPIO1 S3C2410_GPF5 /* v2 + v3 + v4 only */
+#define GTA02_GPIO_AUX_KEY S3C2410_GPF6
+#define GTA02_GPIO_HOLD_KEY S3C2410_GPF7
+
+#define GTA02_GPIO_3D_IRQ S3C2410_GPG4
+#define GTA02v2_GPIO_nG2_INT S3C2410_GPG8 /* v2 + v3 + v4 only */
+#define GTA02v3_GPIO_nUSB_OC S3C2410_GPG9 /* v3 + v4 only */
+#define GTA02v3_GPIO_nUSB_FLT S3C2410_GPG10 /* v3 + v4 only */
+#define GTA02v3_GPIO_nGSM_OC S3C2410_GPG11 /* v3 + v4 only */
+
+#define GTA02_GPIO_AMP_SHUT S3C2440_GPJ1 /* v2 + v3 + v4 only */
+#define GTA02v1_GPIO_WLAN_GPIO10 S3C2440_GPJ2
+#define GTA02_GPIO_HP_IN S3C2440_GPJ2 /* v2 + v3 + v4 only */
+#define GTA02_GPIO_INT0 S3C2440_GPJ3 /* v2 + v3 + v4 only */
+#define GTA02_GPIO_nGSM_EN S3C2440_GPJ4
+#define GTA02_GPIO_3D_RESET S3C2440_GPJ5
+#define GTA02_GPIO_nDL_GSM S3C2440_GPJ6 /* v4 + v5 only */
+#define GTA02_GPIO_WLAN_GPIO0 S3C2440_GPJ7
+#define GTA02v1_GPIO_BAT_ID S3C2440_GPJ8
+#define GTA02_GPIO_KEEPACT S3C2440_GPJ8
+#define GTA02v1_GPIO_HP_IN S3C2440_GPJ10
+#define GTA02_CHIP_PWD S3C2440_GPJ11 /* v2 + v3 + v4 only */
+#define GTA02_GPIO_nWLAN_RESET S3C2440_GPJ12 /* v2 + v3 + v4 only */
+
+#define GTA02_IRQ_GSENSOR_1 IRQ_EINT0
+#define GTA02_IRQ_MODEM IRQ_EINT1
+#define GTA02_IRQ_PIO_2 IRQ_EINT2 /* v2 + v3 + v4 only */
+#define GTA02_IRQ_nJACK_INSERT IRQ_EINT4
+#define GTA02_IRQ_WLAN_GPIO1 IRQ_EINT5
+#define GTA02_IRQ_AUX IRQ_EINT6
+#define GTA02_IRQ_nHOLD IRQ_EINT7
+#define GTA02_IRQ_PCF50633 IRQ_EINT9
+#define GTA02_IRQ_3D IRQ_EINT12
+#define GTA02_IRQ_GSENSOR_2 IRQ_EINT16 /* v2 + v3 + v4 only */
+#define GTA02v3_IRQ_nUSB_OC IRQ_EINT17 /* v3 + v4 only */
+#define GTA02v3_IRQ_nUSB_FLT IRQ_EINT18 /* v3 + v4 only */
+#define GTA02v3_IRQ_nGSM_OC IRQ_EINT19 /* v3 + v4 only */
+
+/* returns 00 000 on GTA02 A5 and earlier, A6 returns 01 001 */
+#define GTA02_PCB_ID1_0 S3C2410_GPC13
+#define GTA02_PCB_ID1_1 S3C2410_GPC15
+#define GTA02_PCB_ID1_2 S3C2410_GPD0
+#define GTA02_PCB_ID2_0 S3C2410_GPD3
+#define GTA02_PCB_ID2_1 S3C2410_GPD4
+
+int gta02_get_pcb_revision(void);
+
+extern struct pcf50633 *gta02_pcf;
+
+#endif /* _GTA02_H */
diff --git a/arch/arm/mach-s3c2442/mach-gta02.c b/arch/arm/mach-s3c2442/mach-gta02.c
new file mode 100644
index 0000000..8a46187
--- /dev/null
+++ b/arch/arm/mach-s3c2442/mach-gta02.c
@@ -0,0 +1,656 @@
+/*
+ * linux/arch/arm/mach-s3c2442/mach-gta02.c
+ *
+ * S3C2442 Machine Support for Openmoko GTA02 / Freerunner
+ *
+ * Copyright (C) 2006-2009 by Openmoko, Inc.
+ * Authors: Harald Welte <laforge at openmoko.org>
+ * Andy Green <andy at openmoko.org>
+ * Werner Almesberger <werner at openmoko.org>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/serial_core.h>
+#include <linux/spi/spi.h>
+
+#include <linux/mmc/host.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <linux/i2c.h>
+#include <linux/backlight.h>
+#include <linux/regulator/machine.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/mbc.h>
+#include <linux/mfd/pcf50633/adc.h>
+#include <linux/mfd/pcf50633/gpio.h>
+#include <linux/mfd/pcf50633/pmic.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include <mach/regs-irq.h>
+#include <mach/regs-gpio.h>
+#include <mach/regs-gpioj.h>
+#include <mach/fb.h>
+
+#include <mach/spi.h>
+#include <mach/spi-gpio.h>
+#include <mach/usb-control.h>
+#include <mach/regs-mem.h>
+#include <mach/hardware.h>
+#include <mach/io.h>
+
+#include <mach/gta02.h>
+
+#include <plat/regs-serial.h>
+#include <plat/nand.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/pm.h>
+#include <plat/udc.h>
+#include <plat/gpio-cfg.h>
+#include <plat/iic.h>
+
+struct pcf50633 *gta02_pcf;
+
+/*
+ * this gets called every 1ms when we paniced.
+ */
+
+static long gta02_panic_blink(long count)
+{
+ long delay = 0;
+ static long last_blink;
+ static char led;
+
+ if (count - last_blink < 100) /* 200ms period, fast blink */
+ return 0;
+
+ led ^= 1;
+ gpio_direction_output(GTA02_GPIO_AUX_LED, led);
+
+ last_blink = count;
+
+ return delay;
+}
+
+
+static struct map_desc gta02_iodesc[] __initdata = {
+ {
+ .virtual = 0xe0000000,
+ .pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
+ .length = SZ_1M,
+ .type = MT_DEVICE
+ },
+};
+
+#define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN)
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+static struct s3c2410_uartcfg gta02_uartcfgs[] = {
+ [0] = {
+ .hwport = 0,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+ [1] = {
+ .hwport = 1,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+ [2] = {
+ .hwport = 2,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+
+};
+
+/*
+ * On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
+ * We use this to recognize that we can pull 1A from the USB socket.
+ *
+ * These constants are the measured pcf50633 ADC levels with the 1A
+ * charger / 48K resistor, and with no pulldown resistor.
+ */
+
+#define ADC_NOM_CHG_DETECT_1A 6
+#define ADC_NOM_CHG_DETECT_USB 43
+
+static void
+gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
+{
+ int ma;
+
+ /* Interpret charger type */
+ if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
+
+ /*
+ * Sanity - stop GPO driving out now that we have a 1A charger
+ * GPO controls USB Host power generation on GTA02
+ */
+ pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
+
+ ma = 1000;
+ } else
+ ma = 100;
+
+ pcf50633_mbc_usb_curlim_set(pcf, ma);
+}
+
+static struct delayed_work gta02_charger_work;
+static int gta02_usb_vbus_draw;
+
+static void gta02_charger_worker(struct work_struct *work)
+{
+ if (gta02_usb_vbus_draw) {
+ pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
+ return;
+ }
+
+ pcf50633_adc_async_read(gta02_pcf,
+ PCF50633_ADCC1_MUX_ADCIN1,
+ PCF50633_ADCC1_AVERAGE_16,
+ gta02_configure_pmu_for_charger, NULL);
+}
+
+#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
+static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
+{
+ if (irq == PCF50633_IRQ_USBINS) {
+ schedule_delayed_work(>a02_charger_work,
+ GTA02_CHARGER_CONFIGURE_TIMEOUT);
+ return;
+ }
+
+ if (irq == PCF50633_IRQ_USBREM) {
+ cancel_delayed_work_sync(>a02_charger_work);
+ gta02_usb_vbus_draw = 0;
+ }
+}
+
+
+/* this is called when pc50633 is probed, unfortunately quite late in the
+ * day since it is an I2C bus device. Here we can belatedly define some
+ * platform devices with the advantage that we can mark the pcf50633 as the
+ * parent. This makes them get suspended and resumed with their parent
+ * the pcf50633 still around.
+ */
+
+static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
+
+
+
+static char *gta02_batteries[] = {
+ "battery",
+};
+
+struct pcf50633_platform_data gta02_pcf_pdata = {
+ .resumers = {
+ [0] = PCF50633_INT1_USBINS |
+ PCF50633_INT1_USBREM |
+ PCF50633_INT1_ALARM,
+ [1] = PCF50633_INT2_ONKEYF,
+ [2] = PCF50633_INT3_ONKEY1S,
+ [3] = PCF50633_INT4_LOWSYS |
+ PCF50633_INT4_LOWBAT |
+ PCF50633_INT4_HIGHTMP,
+ },
+
+ .batteries = gta02_batteries,
+ .num_batteries = ARRAY_SIZE(gta02_batteries),
+ .reg_init_data = {
+ [PCF50633_REGULATOR_AUTO] = {
+ .constraints = {
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .boot_on = 1,
+ .apply_uV = 1,
+ .state_mem = {
+ .enabled = 1,
+ },
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_DOWN1] = {
+ .constraints = {
+ .min_uV = 1300000,
+ .max_uV = 1600000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .boot_on = 1,
+ .apply_uV = 1,
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_DOWN2] = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ .boot_on = 1,
+ .state_mem = {
+ .enabled = 1,
+ },
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_HCLDO] = {
+ .constraints = {
+ .min_uV = 2000000,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+ .boot_on = 1,
+ },
+ },
+ [PCF50633_REGULATOR_LDO1] = {
+ .constraints = {
+ .min_uV = 1300000,
+ .max_uV = 1300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_LDO2] = {
+ .constraints = {
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_LDO3] = {
+ .constraints = {
+ .min_uV = 3000000,
+ .max_uV = 3000000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_LDO4] = {
+ .constraints = {
+ .min_uV = 3200000,
+ .max_uV = 3200000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+ },
+ [PCF50633_REGULATOR_LDO5] = {
+ .constraints = {
+ .min_uV = 1500000,
+ .max_uV = 1500000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ .state_mem = {
+ .enabled = 1,
+ },
+ },
+ },
+ [PCF50633_REGULATOR_LDO6] = {
+ .constraints = {
+ .min_uV = 0,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ },
+ .num_consumer_supplies = 0,
+ },
+ [PCF50633_REGULATOR_MEMLDO] = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .state_mem = {
+ .enabled = 1,
+ },
+ },
+ .num_consumer_supplies = 0,
+ },
+
+ },
+ .probe_done = gta02_pmu_attach_child_devices,
+ .mbc_event_callback = gta02_pmu_event_callback,
+};
+
+static void mangle_pmu_pdata_by_system_rev(void)
+{
+ struct regulator_init_data *reg_init_data =
+ gta02_pcf_pdata.reg_init_data;
+
+ /* it's not supported any more */
+ BUG_ON(system_rev == GTA02v1_SYSTEM_REV);
+
+ reg_init_data[PCF50633_REGULATOR_LDO1].constraints.min_uV = 3300000;
+ reg_init_data[PCF50633_REGULATOR_LDO1].constraints.min_uV = 3300000;
+ reg_init_data[PCF50633_REGULATOR_LDO1].constraints.state_mem.enabled = 0;
+
+ reg_init_data[PCF50633_REGULATOR_LDO5].constraints.min_uV = 3000000;
+ reg_init_data[PCF50633_REGULATOR_LDO5].constraints.max_uV = 3000000;
+
+ reg_init_data[PCF50633_REGULATOR_LDO6].constraints.min_uV = 3000000;
+ reg_init_data[PCF50633_REGULATOR_LDO6].constraints.max_uV = 3000000;
+ reg_init_data[PCF50633_REGULATOR_LDO6].constraints.apply_uV = 1;
+}
+
+
+/* NOR Flash */
+
+#define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
+#define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
+
+static struct physmap_flash_data gta02_nor_flash_data = {
+ .width = 2,
+};
+
+static struct resource gta02_nor_flash_resource = {
+ .start = GTA02_FLASH_BASE,
+ .end = GTA02_FLASH_BASE + GTA02_FLASH_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device gta02_nor_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = >a02_nor_flash_data,
+ },
+ .resource = >a02_nor_flash_resource,
+ .num_resources = 1,
+};
+
+
+struct platform_device s3c24xx_pwm_device = {
+ .name = "s3c24xx_pwm",
+ .num_resources = 0,
+};
+
+static struct i2c_board_info gta02_i2c_devs[] __initdata = {
+ {
+ I2C_BOARD_INFO("pcf50633", 0x73),
+ .irq = GTA02_IRQ_PCF50633,
+ .platform_data = >a02_pcf_pdata,
+ },
+};
+
+static struct s3c2410_nand_set gta02_nand_sets[] = {
+ [0] = {
+ .name = "neo1973-nand",
+ .nr_chips = 1,
+ .use_bbt = 1,
+ },
+};
+
+/* choose a set of timings derived from S3C at 2442B MCP54
+ * data sheet (K5D2G13ACM-D075 MCP Memory)
+ */
+
+static struct s3c2410_platform_nand gta02_nand_info = {
+ .tacls = 0,
+ .twrph0 = 25,
+ .twrph1 = 15,
+ .nr_sets = ARRAY_SIZE(gta02_nand_sets),
+ .sets = gta02_nand_sets,
+};
+
+
+static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd)
+{
+ switch (cmd) {
+ case S3C2410_UDC_P_ENABLE:
+ printk(KERN_DEBUG "%s S3C2410_UDC_P_ENABLE\n", __func__);
+ gpio_direction_output(GTA02_GPIO_USB_PULLUP, 1);
+ break;
+ case S3C2410_UDC_P_DISABLE:
+ printk(KERN_DEBUG "%s S3C2410_UDC_P_DISABLE\n", __func__);
+ gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0);
+ break;
+ case S3C2410_UDC_P_RESET:
+ printk(KERN_DEBUG "%s S3C2410_UDC_P_RESET\n", __func__);
+ /* FIXME! */
+ break;
+ default:
+ break;
+ }
+}
+
+/* get PMU to set USB current limit accordingly */
+
+static void gta02_udc_vbus_draw(unsigned int ma)
+{
+ if (!gta02_pcf)
+ return;
+
+ gta02_usb_vbus_draw = ma;
+
+ schedule_delayed_work(>a02_charger_work,
+ GTA02_CHARGER_CONFIGURE_TIMEOUT);
+}
+
+static struct s3c2410_udc_mach_info gta02_udc_cfg = {
+ .vbus_draw = gta02_udc_vbus_draw,
+ .udc_command = gta02_udc_command,
+
+};
+
+
+
+static void gta02_bl_set_intensity(int intensity)
+{
+ struct pcf50633 *pcf = gta02_pcf;
+ int old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
+ int ret;
+
+ intensity >>= 2;
+
+ /*
+ * One code path that leads here is from a kernel panic. Trying to turn
+ * the backlight on just gives us a nearly endless stream of complaints
+ * and accomplishes nothing. We can't win. Just give up.
+ *
+ * In the unlikely event that there's another path leading here while
+ * we're atomic, we print at least a warning.
+ */
+ if (in_atomic()) {
+ printk(KERN_ERR
+ "gta02_bl_set_intensity called while atomic\n");
+ return;
+ }
+
+ old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
+ if (intensity == old_intensity)
+ return;
+
+ /* We can't do this anywhere else */
+ pcf50633_reg_write(pcf, PCF50633_REG_LEDDIM, 5);
+
+ if (!(pcf50633_reg_read(pcf, PCF50633_REG_LEDENA) & 3))
+ old_intensity = 0;
+
+ /*
+ * The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
+ * if seen, you have to re-enable the LED unit
+ */
+ if (!intensity || !old_intensity)
+ pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 0);
+
+ if (!intensity) /* illegal to set LEDOUT to 0 */
+ ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
+ 2);
+ else
+ ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
+ intensity);
+
+ if (intensity)
+ pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 2);
+
+}
+
+static struct generic_bl_info gta02_bl_info = {
+ .name = "gta02-bl",
+ .max_intensity = 0xff,
+ .default_intensity = 0xff,
+ .set_bl_intensity = gta02_bl_set_intensity,
+};
+
+static struct platform_device gta02_bl_dev = {
+ .name = "generic-bl",
+ .id = 1,
+ .dev = {
+ .platform_data = >a02_bl_info,
+ },
+};
+
+
+
+/* USB */
+static struct s3c2410_hcd_info gta02_usb_info = {
+ .port[0] = {
+ .flags = S3C_HCDFLG_USED,
+ },
+ .port[1] = {
+ .flags = 0,
+ },
+};
+
+
+static void __init gta02_map_io(void)
+{
+ s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
+ s3c24xx_init_clocks(12000000);
+ s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
+}
+
+
+
+/* these are the guys that don't need to be children of PMU */
+
+static struct platform_device *gta02_devices[] __initdata = {
+ &s3c_device_usb,
+ &s3c_device_wdt,
+ &s3c_device_sdi,
+ &s3c_device_usbgadget,
+ &s3c_device_nand,
+ >a02_nor_flash,
+
+ &s3c24xx_pwm_device,
+ &s3c_device_iis,
+ &s3c_device_i2c0,
+};
+
+/* these guys DO need to be children of PMU */
+
+static struct platform_device *gta02_devices_pmu_children[] = {
+ >a02_bl_dev
+};
+
+
+/*
+ * This is called when pc50633 is probed, quite late in the day since it is an
+ * I2C bus device. Here we can define platform devices with the advantage that
+ * we can mark the pcf50633 as the parent. This makes them get suspended and
+ * resumed with their parent the pcf50633 still around. All devices whose
+ * operation depends on something from pcf50633 must have this relationship
+ * made explicit like this, or suspend and resume will become an unreliable
+ * hellworld.
+ */
+
+static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
+{
+ int n;
+
+ /* grab a copy of the now probed PMU pointer */
+ gta02_pcf = pcf;
+
+ for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
+ gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
+
+ platform_add_devices(gta02_devices_pmu_children,
+ ARRAY_SIZE(gta02_devices_pmu_children));
+}
+
+static void gta02_poweroff(void)
+{
+ pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
+}
+
+static void __init gta02_machine_init(void)
+{
+ /* set the panic callback to make AUX blink fast */
+ panic_blink = gta02_panic_blink;
+
+ s3c_pm_init();
+
+ INIT_DELAYED_WORK(>a02_charger_work, gta02_charger_worker);
+
+ s3c_device_usb.dev.platform_data = >a02_usb_info;
+ s3c_device_nand.dev.platform_data = >a02_nand_info;
+
+ s3c24xx_udc_set_platdata(>a02_udc_cfg);
+ s3c_i2c0_set_platdata(NULL);
+
+ i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
+
+ mangle_pmu_pdata_by_system_rev();
+
+ platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
+ pm_power_off = gta02_poweroff;
+}
+
+
+MACHINE_START(NEO1973_GTA02, "GTA02")
+ /* Maintainer: Andy Green <andy at openmoko.com> */
+ .phys_io = S3C2410_PA_UART,
+ .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
+ .boot_params = S3C2410_SDRAM_PA + 0x100,
+ .map_io = gta02_map_io,
+ .init_irq = s3c24xx_init_irq,
+ .init_machine = gta02_machine_init,
+ .timer = &s3c24xx_timer,
+MACHINE_END
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