mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 02:04:19 +08:00
dd45077799
In the end asm/mach/irda.h header is not used by anybody except sa1100. Move the header to the platform data includes dir and rename it to irda-sa11x0.h. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
765 lines
18 KiB
C
765 lines
18 KiB
C
/*
|
|
* linux/arch/arm/mach-sa1100/assabet.c
|
|
*
|
|
* Author: Nicolas Pitre
|
|
*
|
|
* This file contains all Assabet-specific tweaks.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/platform_data/sa11x0-serial.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mfd/ucb1x00.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <video/sa1100fb.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pgtable-hwdef.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/tlbflush.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/flash.h>
|
|
#include <linux/platform_data/irda-sa11x0.h>
|
|
#include <asm/mach/map.h>
|
|
#include <mach/assabet.h>
|
|
#include <linux/platform_data/mfd-mcp-sa11x0.h>
|
|
#include <mach/irqs.h>
|
|
|
|
#include "generic.h"
|
|
|
|
#define ASSABET_BCR_DB1110 \
|
|
(ASSABET_BCR_SPK_OFF | \
|
|
ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
|
|
ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
|
|
ASSABET_BCR_IRDA_MD0)
|
|
|
|
#define ASSABET_BCR_DB1111 \
|
|
(ASSABET_BCR_SPK_OFF | \
|
|
ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
|
|
ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
|
|
ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_STEREO_LB | \
|
|
ASSABET_BCR_IRDA_MD0 | ASSABET_BCR_CF_RST)
|
|
|
|
unsigned long SCR_value = ASSABET_SCR_INIT;
|
|
EXPORT_SYMBOL(SCR_value);
|
|
|
|
static unsigned long BCR_value = ASSABET_BCR_DB1110;
|
|
|
|
void ASSABET_BCR_frob(unsigned int mask, unsigned int val)
|
|
{
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
BCR_value = (BCR_value & ~mask) | val;
|
|
ASSABET_BCR = BCR_value;
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
EXPORT_SYMBOL(ASSABET_BCR_frob);
|
|
|
|
/*
|
|
* The codec reset goes to three devices, so we need to release
|
|
* the rest when any one of these requests it. However, that
|
|
* causes the ADV7171 to consume around 100mA - more than half
|
|
* the LCD-blanked power.
|
|
*
|
|
* With the ADV7171, LCD and backlight enabled, we go over
|
|
* budget on the MAX846 Li-Ion charger, and if no Li-Ion battery
|
|
* is connected, the Assabet crashes.
|
|
*/
|
|
#define RST_UCB1X00 (1 << 0)
|
|
#define RST_UDA1341 (1 << 1)
|
|
#define RST_ADV7171 (1 << 2)
|
|
|
|
#define SDA GPIO_GPIO(15)
|
|
#define SCK GPIO_GPIO(18)
|
|
#define MOD GPIO_GPIO(17)
|
|
|
|
static void adv7171_start(void)
|
|
{
|
|
GPSR = SCK;
|
|
udelay(1);
|
|
GPSR = SDA;
|
|
udelay(2);
|
|
GPCR = SDA;
|
|
}
|
|
|
|
static void adv7171_stop(void)
|
|
{
|
|
GPSR = SCK;
|
|
udelay(2);
|
|
GPSR = SDA;
|
|
udelay(1);
|
|
}
|
|
|
|
static void adv7171_send(unsigned byte)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < 8; i++, byte <<= 1) {
|
|
GPCR = SCK;
|
|
udelay(1);
|
|
if (byte & 0x80)
|
|
GPSR = SDA;
|
|
else
|
|
GPCR = SDA;
|
|
udelay(1);
|
|
GPSR = SCK;
|
|
udelay(1);
|
|
}
|
|
GPCR = SCK;
|
|
udelay(1);
|
|
GPSR = SDA;
|
|
udelay(1);
|
|
GPDR &= ~SDA;
|
|
GPSR = SCK;
|
|
udelay(1);
|
|
if (GPLR & SDA)
|
|
printk(KERN_WARNING "No ACK from ADV7171\n");
|
|
udelay(1);
|
|
GPCR = SCK | SDA;
|
|
udelay(1);
|
|
GPDR |= SDA;
|
|
udelay(1);
|
|
}
|
|
|
|
static void adv7171_write(unsigned reg, unsigned val)
|
|
{
|
|
unsigned gpdr = GPDR;
|
|
unsigned gplr = GPLR;
|
|
|
|
ASSABET_BCR = BCR_value | ASSABET_BCR_AUDIO_ON;
|
|
udelay(100);
|
|
|
|
GPCR = SDA | SCK | MOD; /* clear L3 mode to ensure UDA1341 doesn't respond */
|
|
GPDR = (GPDR | SCK | MOD) & ~SDA;
|
|
udelay(10);
|
|
if (!(GPLR & SDA))
|
|
printk(KERN_WARNING "Something dragging SDA down?\n");
|
|
GPDR |= SDA;
|
|
|
|
adv7171_start();
|
|
adv7171_send(0x54);
|
|
adv7171_send(reg);
|
|
adv7171_send(val);
|
|
adv7171_stop();
|
|
|
|
/* Restore GPIO state for L3 bus */
|
|
GPSR = gplr & (SDA | SCK | MOD);
|
|
GPCR = (~gplr) & (SDA | SCK | MOD);
|
|
GPDR = gpdr;
|
|
}
|
|
|
|
static void adv7171_sleep(void)
|
|
{
|
|
/* Put the ADV7171 into sleep mode */
|
|
adv7171_write(0x04, 0x40);
|
|
}
|
|
|
|
static unsigned codec_nreset;
|
|
|
|
static void assabet_codec_reset(unsigned mask, int set)
|
|
{
|
|
unsigned long flags;
|
|
bool old;
|
|
|
|
local_irq_save(flags);
|
|
old = !codec_nreset;
|
|
if (set)
|
|
codec_nreset &= ~mask;
|
|
else
|
|
codec_nreset |= mask;
|
|
|
|
if (old != !codec_nreset) {
|
|
if (codec_nreset) {
|
|
ASSABET_BCR_set(ASSABET_BCR_NCODEC_RST);
|
|
adv7171_sleep();
|
|
} else {
|
|
ASSABET_BCR_clear(ASSABET_BCR_NCODEC_RST);
|
|
}
|
|
}
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
static void assabet_ucb1x00_reset(enum ucb1x00_reset state)
|
|
{
|
|
int set = state == UCB_RST_REMOVE || state == UCB_RST_SUSPEND ||
|
|
state == UCB_RST_PROBE_FAIL;
|
|
assabet_codec_reset(RST_UCB1X00, set);
|
|
}
|
|
|
|
void assabet_uda1341_reset(int set)
|
|
{
|
|
assabet_codec_reset(RST_UDA1341, set);
|
|
}
|
|
EXPORT_SYMBOL(assabet_uda1341_reset);
|
|
|
|
|
|
/*
|
|
* Assabet flash support code.
|
|
*/
|
|
|
|
#ifdef ASSABET_REV_4
|
|
/*
|
|
* Phase 4 Assabet has two 28F160B3 flash parts in bank 0:
|
|
*/
|
|
static struct mtd_partition assabet_partitions[] = {
|
|
{
|
|
.name = "bootloader",
|
|
.size = 0x00020000,
|
|
.offset = 0,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
}, {
|
|
.name = "bootloader params",
|
|
.size = 0x00020000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
}, {
|
|
.name = "jffs",
|
|
.size = MTDPART_SIZ_FULL,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}
|
|
};
|
|
#else
|
|
/*
|
|
* Phase 5 Assabet has two 28F128J3A flash parts in bank 0:
|
|
*/
|
|
static struct mtd_partition assabet_partitions[] = {
|
|
{
|
|
.name = "bootloader",
|
|
.size = 0x00040000,
|
|
.offset = 0,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
}, {
|
|
.name = "bootloader params",
|
|
.size = 0x00040000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
}, {
|
|
.name = "jffs",
|
|
.size = MTDPART_SIZ_FULL,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}
|
|
};
|
|
#endif
|
|
|
|
static struct flash_platform_data assabet_flash_data = {
|
|
.map_name = "cfi_probe",
|
|
.parts = assabet_partitions,
|
|
.nr_parts = ARRAY_SIZE(assabet_partitions),
|
|
};
|
|
|
|
static struct resource assabet_flash_resources[] = {
|
|
DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
|
|
DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M),
|
|
};
|
|
|
|
|
|
/*
|
|
* Assabet IrDA support code.
|
|
*/
|
|
|
|
static int assabet_irda_set_power(struct device *dev, unsigned int state)
|
|
{
|
|
static unsigned int bcr_state[4] = {
|
|
ASSABET_BCR_IRDA_MD0,
|
|
ASSABET_BCR_IRDA_MD1|ASSABET_BCR_IRDA_MD0,
|
|
ASSABET_BCR_IRDA_MD1,
|
|
0
|
|
};
|
|
|
|
if (state < 4)
|
|
ASSABET_BCR_frob(ASSABET_BCR_IRDA_MD1 | ASSABET_BCR_IRDA_MD0,
|
|
bcr_state[state]);
|
|
return 0;
|
|
}
|
|
|
|
static void assabet_irda_set_speed(struct device *dev, unsigned int speed)
|
|
{
|
|
if (speed < 4000000)
|
|
ASSABET_BCR_clear(ASSABET_BCR_IRDA_FSEL);
|
|
else
|
|
ASSABET_BCR_set(ASSABET_BCR_IRDA_FSEL);
|
|
}
|
|
|
|
static struct irda_platform_data assabet_irda_data = {
|
|
.set_power = assabet_irda_set_power,
|
|
.set_speed = assabet_irda_set_speed,
|
|
};
|
|
|
|
static struct ucb1x00_plat_data assabet_ucb1x00_data = {
|
|
.reset = assabet_ucb1x00_reset,
|
|
.gpio_base = -1,
|
|
.can_wakeup = 1,
|
|
};
|
|
|
|
static struct mcp_plat_data assabet_mcp_data = {
|
|
.mccr0 = MCCR0_ADM,
|
|
.sclk_rate = 11981000,
|
|
.codec_pdata = &assabet_ucb1x00_data,
|
|
};
|
|
|
|
static void assabet_lcd_set_visual(u32 visual)
|
|
{
|
|
u_int is_true_color = visual == FB_VISUAL_TRUECOLOR;
|
|
|
|
if (machine_is_assabet()) {
|
|
#if 1 // phase 4 or newer Assabet's
|
|
if (is_true_color)
|
|
ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
|
|
else
|
|
ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
|
|
#else
|
|
// older Assabet's
|
|
if (is_true_color)
|
|
ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
|
|
else
|
|
ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#ifndef ASSABET_PAL_VIDEO
|
|
static void assabet_lcd_backlight_power(int on)
|
|
{
|
|
if (on)
|
|
ASSABET_BCR_set(ASSABET_BCR_LIGHT_ON);
|
|
else
|
|
ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
|
|
}
|
|
|
|
/*
|
|
* Turn on/off the backlight. When turning the backlight on, we wait
|
|
* 500us after turning it on so we don't cause the supplies to droop
|
|
* when we enable the LCD controller (and cause a hard reset.)
|
|
*/
|
|
static void assabet_lcd_power(int on)
|
|
{
|
|
if (on) {
|
|
ASSABET_BCR_set(ASSABET_BCR_LCD_ON);
|
|
udelay(500);
|
|
} else
|
|
ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
|
|
}
|
|
|
|
/*
|
|
* The assabet uses a sharp LQ039Q2DS54 LCD module. It is actually
|
|
* takes an RGB666 signal, but we provide it with an RGB565 signal
|
|
* instead (def_rgb_16).
|
|
*/
|
|
static struct sa1100fb_mach_info lq039q2ds54_info = {
|
|
.pixclock = 171521, .bpp = 16,
|
|
.xres = 320, .yres = 240,
|
|
|
|
.hsync_len = 5, .vsync_len = 1,
|
|
.left_margin = 61, .upper_margin = 3,
|
|
.right_margin = 9, .lower_margin = 0,
|
|
|
|
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
|
|
|
|
.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
|
|
.lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
|
|
|
|
.backlight_power = assabet_lcd_backlight_power,
|
|
.lcd_power = assabet_lcd_power,
|
|
.set_visual = assabet_lcd_set_visual,
|
|
};
|
|
#else
|
|
static void assabet_pal_backlight_power(int on)
|
|
{
|
|
ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
|
|
}
|
|
|
|
static void assabet_pal_power(int on)
|
|
{
|
|
ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
|
|
}
|
|
|
|
static struct sa1100fb_mach_info pal_info = {
|
|
.pixclock = 67797, .bpp = 16,
|
|
.xres = 640, .yres = 512,
|
|
|
|
.hsync_len = 64, .vsync_len = 6,
|
|
.left_margin = 125, .upper_margin = 70,
|
|
.right_margin = 115, .lower_margin = 36,
|
|
|
|
.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
|
|
.lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(512),
|
|
|
|
.backlight_power = assabet_pal_backlight_power,
|
|
.lcd_power = assabet_pal_power,
|
|
.set_visual = assabet_lcd_set_visual,
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_ASSABET_NEPONSET
|
|
static struct resource neponset_resources[] = {
|
|
DEFINE_RES_MEM(0x10000000, 0x08000000),
|
|
DEFINE_RES_MEM(0x18000000, 0x04000000),
|
|
DEFINE_RES_MEM(0x40000000, SZ_8K),
|
|
DEFINE_RES_IRQ(IRQ_GPIO25),
|
|
};
|
|
#endif
|
|
|
|
static void __init assabet_init(void)
|
|
{
|
|
/*
|
|
* Ensure that the power supply is in "high power" mode.
|
|
*/
|
|
GPSR = GPIO_GPIO16;
|
|
GPDR |= GPIO_GPIO16;
|
|
|
|
/*
|
|
* Ensure that these pins are set as outputs and are driving
|
|
* logic 0. This ensures that we won't inadvertently toggle
|
|
* the WS latch in the CPLD, and we don't float causing
|
|
* excessive power drain. --rmk
|
|
*/
|
|
GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
|
|
GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
|
|
|
|
/*
|
|
* Also set GPIO27 as an output; this is used to clock UART3
|
|
* via the FPGA and as otherwise has no pullups or pulldowns,
|
|
* so stop it floating.
|
|
*/
|
|
GPCR = GPIO_GPIO27;
|
|
GPDR |= GPIO_GPIO27;
|
|
|
|
/*
|
|
* Set up registers for sleep mode.
|
|
*/
|
|
PWER = PWER_GPIO0;
|
|
PGSR = 0;
|
|
PCFR = 0;
|
|
PSDR = 0;
|
|
PPDR |= PPC_TXD3 | PPC_TXD1;
|
|
PPSR |= PPC_TXD3 | PPC_TXD1;
|
|
|
|
sa11x0_ppc_configure_mcp();
|
|
|
|
if (machine_has_neponset()) {
|
|
/*
|
|
* Angel sets this, but other bootloaders may not.
|
|
*
|
|
* This must precede any driver calls to BCR_set()
|
|
* or BCR_clear().
|
|
*/
|
|
ASSABET_BCR = BCR_value = ASSABET_BCR_DB1111;
|
|
|
|
#ifndef CONFIG_ASSABET_NEPONSET
|
|
printk( "Warning: Neponset detected but full support "
|
|
"hasn't been configured in the kernel\n" );
|
|
#else
|
|
platform_device_register_simple("neponset", 0,
|
|
neponset_resources, ARRAY_SIZE(neponset_resources));
|
|
#endif
|
|
}
|
|
|
|
#ifndef ASSABET_PAL_VIDEO
|
|
sa11x0_register_lcd(&lq039q2ds54_info);
|
|
#else
|
|
sa11x0_register_lcd(&pal_video);
|
|
#endif
|
|
sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
|
|
ARRAY_SIZE(assabet_flash_resources));
|
|
sa11x0_register_irda(&assabet_irda_data);
|
|
sa11x0_register_mcp(&assabet_mcp_data);
|
|
}
|
|
|
|
/*
|
|
* On Assabet, we must probe for the Neponset board _before_
|
|
* paging_init() has occurred to actually determine the amount
|
|
* of RAM available. To do so, we map the appropriate IO section
|
|
* in the page table here in order to access GPIO registers.
|
|
*/
|
|
static void __init map_sa1100_gpio_regs( void )
|
|
{
|
|
unsigned long phys = __PREG(GPLR) & PMD_MASK;
|
|
unsigned long virt = (unsigned long)io_p2v(phys);
|
|
int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
|
|
pmd_t *pmd;
|
|
|
|
pmd = pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt);
|
|
*pmd = __pmd(phys | prot);
|
|
flush_pmd_entry(pmd);
|
|
}
|
|
|
|
/*
|
|
* Read System Configuration "Register"
|
|
* (taken from "Intel StrongARM SA-1110 Microprocessor Development Board
|
|
* User's Guide", section 4.4.1)
|
|
*
|
|
* This same scan is performed in arch/arm/boot/compressed/head-sa1100.S
|
|
* to set up the serial port for decompression status messages. We
|
|
* repeat it here because the kernel may not be loaded as a zImage, and
|
|
* also because it's a hassle to communicate the SCR value to the kernel
|
|
* from the decompressor.
|
|
*
|
|
* Note that IRQs are guaranteed to be disabled.
|
|
*/
|
|
static void __init get_assabet_scr(void)
|
|
{
|
|
unsigned long uninitialized_var(scr), i;
|
|
|
|
GPDR |= 0x3fc; /* Configure GPIO 9:2 as outputs */
|
|
GPSR = 0x3fc; /* Write 0xFF to GPIO 9:2 */
|
|
GPDR &= ~(0x3fc); /* Configure GPIO 9:2 as inputs */
|
|
for(i = 100; i--; ) /* Read GPIO 9:2 */
|
|
scr = GPLR;
|
|
GPDR |= 0x3fc; /* restore correct pin direction */
|
|
scr &= 0x3fc; /* save as system configuration byte. */
|
|
SCR_value = scr;
|
|
}
|
|
|
|
static void __init
|
|
fixup_assabet(struct tag *tags, char **cmdline)
|
|
{
|
|
/* This must be done before any call to machine_has_neponset() */
|
|
map_sa1100_gpio_regs();
|
|
get_assabet_scr();
|
|
|
|
if (machine_has_neponset())
|
|
printk("Neponset expansion board detected\n");
|
|
}
|
|
|
|
|
|
static void assabet_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
|
|
{
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
if (state)
|
|
ASSABET_BCR_clear(ASSABET_BCR_RS232EN |
|
|
ASSABET_BCR_COM_RTS |
|
|
ASSABET_BCR_COM_DTR);
|
|
else
|
|
ASSABET_BCR_set(ASSABET_BCR_RS232EN |
|
|
ASSABET_BCR_COM_RTS |
|
|
ASSABET_BCR_COM_DTR);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Assabet uses COM_RTS and COM_DTR for both UART1 (com port)
|
|
* and UART3 (radio module). We only handle them for UART1 here.
|
|
*/
|
|
static void assabet_set_mctrl(struct uart_port *port, u_int mctrl)
|
|
{
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
u_int set = 0, clear = 0;
|
|
|
|
if (mctrl & TIOCM_RTS)
|
|
clear |= ASSABET_BCR_COM_RTS;
|
|
else
|
|
set |= ASSABET_BCR_COM_RTS;
|
|
|
|
if (mctrl & TIOCM_DTR)
|
|
clear |= ASSABET_BCR_COM_DTR;
|
|
else
|
|
set |= ASSABET_BCR_COM_DTR;
|
|
|
|
ASSABET_BCR_clear(clear);
|
|
ASSABET_BCR_set(set);
|
|
}
|
|
}
|
|
|
|
static u_int assabet_get_mctrl(struct uart_port *port)
|
|
{
|
|
u_int ret = 0;
|
|
u_int bsr = ASSABET_BSR;
|
|
|
|
/* need 2 reads to read current value */
|
|
bsr = ASSABET_BSR;
|
|
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
if (bsr & ASSABET_BSR_COM_DCD)
|
|
ret |= TIOCM_CD;
|
|
if (bsr & ASSABET_BSR_COM_CTS)
|
|
ret |= TIOCM_CTS;
|
|
if (bsr & ASSABET_BSR_COM_DSR)
|
|
ret |= TIOCM_DSR;
|
|
} else if (port->mapbase == _Ser3UTCR0) {
|
|
if (bsr & ASSABET_BSR_RAD_DCD)
|
|
ret |= TIOCM_CD;
|
|
if (bsr & ASSABET_BSR_RAD_CTS)
|
|
ret |= TIOCM_CTS;
|
|
if (bsr & ASSABET_BSR_RAD_DSR)
|
|
ret |= TIOCM_DSR;
|
|
if (bsr & ASSABET_BSR_RAD_RI)
|
|
ret |= TIOCM_RI;
|
|
} else {
|
|
ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct sa1100_port_fns assabet_port_fns __initdata = {
|
|
.set_mctrl = assabet_set_mctrl,
|
|
.get_mctrl = assabet_get_mctrl,
|
|
.pm = assabet_uart_pm,
|
|
};
|
|
|
|
static struct map_desc assabet_io_desc[] __initdata = {
|
|
{ /* Board Control Register */
|
|
.virtual = 0xf1000000,
|
|
.pfn = __phys_to_pfn(0x12000000),
|
|
.length = 0x00100000,
|
|
.type = MT_DEVICE
|
|
}, { /* MQ200 */
|
|
.virtual = 0xf2800000,
|
|
.pfn = __phys_to_pfn(0x4b800000),
|
|
.length = 0x00800000,
|
|
.type = MT_DEVICE
|
|
}
|
|
};
|
|
|
|
static void __init assabet_map_io(void)
|
|
{
|
|
sa1100_map_io();
|
|
iotable_init(assabet_io_desc, ARRAY_SIZE(assabet_io_desc));
|
|
|
|
/*
|
|
* Set SUS bit in SDCR0 so serial port 1 functions.
|
|
* Its called GPCLKR0 in my SA1110 manual.
|
|
*/
|
|
Ser1SDCR0 |= SDCR0_SUS;
|
|
MSC1 = (MSC1 & ~0xffff) |
|
|
MSC_NonBrst | MSC_32BitStMem |
|
|
MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);
|
|
|
|
if (!machine_has_neponset())
|
|
sa1100_register_uart_fns(&assabet_port_fns);
|
|
|
|
/*
|
|
* When Neponset is attached, the first UART should be
|
|
* UART3. That's what Angel is doing and many documents
|
|
* are stating this.
|
|
*
|
|
* We do the Neponset mapping even if Neponset support
|
|
* isn't compiled in so the user will still get something on
|
|
* the expected physical serial port.
|
|
*
|
|
* We no longer do this; not all boot loaders support it,
|
|
* and UART3 appears to be somewhat unreliable with blob.
|
|
*/
|
|
sa1100_register_uart(0, 1);
|
|
sa1100_register_uart(2, 3);
|
|
}
|
|
|
|
/* LEDs */
|
|
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
|
|
struct assabet_led {
|
|
struct led_classdev cdev;
|
|
u32 mask;
|
|
};
|
|
|
|
/*
|
|
* The triggers lines up below will only be used if the
|
|
* LED triggers are compiled in.
|
|
*/
|
|
static const struct {
|
|
const char *name;
|
|
const char *trigger;
|
|
} assabet_leds[] = {
|
|
{ "assabet:red", "cpu0",},
|
|
{ "assabet:green", "heartbeat", },
|
|
};
|
|
|
|
/*
|
|
* The LED control in Assabet is reversed:
|
|
* - setting bit means turn off LED
|
|
* - clearing bit means turn on LED
|
|
*/
|
|
static void assabet_led_set(struct led_classdev *cdev,
|
|
enum led_brightness b)
|
|
{
|
|
struct assabet_led *led = container_of(cdev,
|
|
struct assabet_led, cdev);
|
|
|
|
if (b != LED_OFF)
|
|
ASSABET_BCR_clear(led->mask);
|
|
else
|
|
ASSABET_BCR_set(led->mask);
|
|
}
|
|
|
|
static enum led_brightness assabet_led_get(struct led_classdev *cdev)
|
|
{
|
|
struct assabet_led *led = container_of(cdev,
|
|
struct assabet_led, cdev);
|
|
|
|
return (ASSABET_BCR & led->mask) ? LED_OFF : LED_FULL;
|
|
}
|
|
|
|
static int __init assabet_leds_init(void)
|
|
{
|
|
int i;
|
|
|
|
if (!machine_is_assabet())
|
|
return -ENODEV;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(assabet_leds); i++) {
|
|
struct assabet_led *led;
|
|
|
|
led = kzalloc(sizeof(*led), GFP_KERNEL);
|
|
if (!led)
|
|
break;
|
|
|
|
led->cdev.name = assabet_leds[i].name;
|
|
led->cdev.brightness_set = assabet_led_set;
|
|
led->cdev.brightness_get = assabet_led_get;
|
|
led->cdev.default_trigger = assabet_leds[i].trigger;
|
|
|
|
if (!i)
|
|
led->mask = ASSABET_BCR_LED_RED;
|
|
else
|
|
led->mask = ASSABET_BCR_LED_GREEN;
|
|
|
|
if (led_classdev_register(NULL, &led->cdev) < 0) {
|
|
kfree(led);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Since we may have triggers on any subsystem, defer registration
|
|
* until after subsystem_init.
|
|
*/
|
|
fs_initcall(assabet_leds_init);
|
|
#endif
|
|
|
|
MACHINE_START(ASSABET, "Intel-Assabet")
|
|
.atag_offset = 0x100,
|
|
.fixup = fixup_assabet,
|
|
.map_io = assabet_map_io,
|
|
.nr_irqs = SA1100_NR_IRQS,
|
|
.init_irq = sa1100_init_irq,
|
|
.init_time = sa1100_timer_init,
|
|
.init_machine = assabet_init,
|
|
.init_late = sa11x0_init_late,
|
|
#ifdef CONFIG_SA1111
|
|
.dma_zone_size = SZ_1M,
|
|
#endif
|
|
.restart = sa11x0_restart,
|
|
MACHINE_END
|