static void sa1111_start_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst = 0;
printk(KERN_DEBUG __FILE__
": starting SA-1111 OHCI USB Controller\n");
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4()) {
badge4_set_5V(BADGE4_5V_USB, 1);
}
#endif
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + SA1111_USB_RESET);
sa1111_enable_device(dev);
udelay(11);
sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET);
}
static void sa1111_start_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst = 0;
printk(KERN_DEBUG __FILE__
": starting SA-1111 OHCI USB Controller\n");
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4()) {
badge4_set_5V(BADGE4_5V_USB, 1);
}
#endif
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
/*
* Configure the power sense and control lines. Place the USB
* host controller in reset.
*/
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + SA1111_USB_RESET);
/*
* Now, carefully enable the USB clock, and take
* the USB host controller out of reset.
*/
sa1111_enable_device(dev);
udelay(11);
sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET);
}
static int __init neponset_init(void)
{
platform_driver_register(&neponset_device_driver);
/*
* The Neponset is only present on the Assabet machine type.
*/
if (!machine_is_assabet())
return -ENODEV;
/*
* Ensure that the memory bus request/grant signals are setup,
* and the grant is held in its inactive state, whether or not
* we actually have a Neponset attached.
*/
sa1110_mb_disable();
if (!machine_has_neponset()) {
printk(KERN_DEBUG "Neponset expansion board not present\n");
return -ENODEV;
}
if (WHOAMI != 0x11) {
printk(KERN_WARNING "Neponset board detected, but "
"wrong ID: %02x\n", WHOAMI);
return -ENODEV;
}
return platform_add_devices(devices, ARRAY_SIZE(devices));
}
static int sa1111_start_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst = 0;
int ret;
dev_dbg(&dev->dev, "starting SA-1111 OHCI USB Controller\n");
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
/*
* Configure the power sense and control lines. Place the USB
* host controller in reset.
*/
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + USB_RESET);
/*
* Now, carefully enable the USB clock, and take
* the USB host controller out of reset.
*/
ret = sa1111_enable_device(dev);
if (ret == 0) {
udelay(11);
sa1111_writel(usb_rst, dev->mapbase + USB_RESET);
}
return ret;
}
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);
}
static int __init assabet_init(void)
{
if (!machine_is_assabet())
return -EINVAL;
/*
* Set the IRQ edges
*/
set_GPIO_IRQ_edge(GPIO_GPIO23, GPIO_RISING_EDGE); /* UCB1300 */
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;
NCR_0 = 0;
#ifndef CONFIG_ASSABET_NEPONSET
printk( "Warning: Neponset detected but full support "
"hasn't been configured in the kernel\n" );
#endif
}
return 0;
}
static void __init sa1111_ohci_configure(void)
{
unsigned int usb_rst = 0;
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_accelent_sa() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
/*
* Configure the power sense and control lines. Place the USB
* host controller in reset.
*/
USB_RESET = usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET;
/*
* Now, carefully enable the USB clock, and take
* the USB host controller out of reset.
*/
SKPCR |= SKPCR_UCLKEN;
udelay(11);
USB_RESET = usb_rst;
}
int __devinit pcmcia_assabet_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_assabet() && !machine_has_neponset())
ret = sa11xx_drv_pcmcia_probe(dev, &assabet_pcmcia_ops, 1, 1);
return ret;
}
static void __init assabet_map_io(void)
{
extern void neponset_map_io(void);
sa1100_map_io();
iotable_init(assabet_io_desc);
#ifdef CONFIG_ASSABET_NEPONSET
/*
* We map Neponset registers even if it isn't present since
* many drivers will try to probe their stuff (and fail).
* This is still more friendly than a kernel paging request
* crash.
*/
neponset_map_io();
#endif
if (machine_has_neponset()) {
/*
* 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.
*/
sa1100_register_uart(0, 3);
sa1100_register_uart(2, 1);
/*
* Set SUS bit in SDCR0 so serial port 1 functions.
* Its called GPCLKR0 in my SA1110 manual.
*/
Ser1SDCR0 |= SDCR0_SUS;
} else {
sa1100_register_uart_fns(&assabet_port_fns);
sa1100_register_uart(0, 1); /* com port */
sa1100_register_uart(2, 3); /* radio module */
}
/*
* 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
*/
GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
/*
* Set up registers for sleep mode.
*/
PWER = PWER_GPIO0;
PGSR = 0;
PCFR = 0;
PSDR = 0;
}
static void __init
fixup_assabet(struct tag *tags, char **cmdline, struct meminfo *mi)
{
/* 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 __init assabet_init(void)
{
/*
* Ensure that the power supply is in "high power" mode.
*/
GPDR |= GPIO_GPIO16;
GPSR = 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
*/
GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
/*
* 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;
sa1100fb_lcd_power = assabet_lcd_power;
sa1100fb_backlight_power = assabet_backlight_power;
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" );
#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);
}
static int __init sa1111_uda1341_init(void)
{
struct uda1341_cfg cfg;
int ret;
if ( !( (machine_is_assabet() && machine_has_neponset()) ||
machine_is_jornada720() ))
return -ENODEV;
ret = l3_attach_client(&uda1341, "l3-sa1111", "uda1341");
if (ret)
goto out;
/* Acquire and initialize DMA */
ret = sa1111_sac_request_dma(&output_stream.dma_ch, "SA1111 audio out",
SA1111_SAC_XMT_CHANNEL);
if (ret < 0)
goto release_l3;
ret = sa1111_sac_request_dma(&input_stream.dma_ch, "SA1111 audio in",
SA1111_SAC_RCV_CHANNEL);
if (ret < 0)
goto release_dma;
cfg.fs = 256;
cfg.format = FMT_I2S;
l3_command(&uda1341, L3_UDA1341_CONFIGURE, &cfg);
/* register devices */
audio_dev_id = register_sound_dsp(&sa1111_audio_fops, -1);
mixer_dev_id = register_sound_mixer(&uda1341_mixer_fops, -1);
printk(KERN_INFO "SA1111 UDA1341 audio driver initialized\n");
return 0;
release_dma:
sa1100_free_dma(output_stream.dma_ch);
release_l3:
l3_detach_client(&uda1341);
out:
return ret;
}
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;
if (machine_has_neponset()) {
#ifdef CONFIG_ASSABET_NEPONSET
extern void neponset_map_io(void);
/*
* We map Neponset registers even if it isn't present since
* many drivers will try to probe their stuff (and fail).
* This is still more friendly than a kernel paging request
* crash.
*/
neponset_map_io();
#endif
} else {
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);
}
static int __init neponset_init(void)
{
platform_driver_register(&neponset_device_driver);
if (!machine_is_assabet())
return -ENODEV;
sa1110_mb_disable();
if (!machine_has_neponset()) {
printk(KERN_DEBUG "Neponset expansion board not present\n");
return -ENODEV;
}
if (WHOAMI != 0x11) {
printk(KERN_WARNING "Neponset board detected, but "
"wrong ID: %02x\n", WHOAMI);
return -ENODEV;
}
return platform_add_devices(devices, ARRAY_SIZE(devices));
}
/* sa1100_pcmcia_driver_init()
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* This routine performs a basic sanity check to ensure that this
* kernel has been built with the appropriate board-specific low-level
* PCMCIA support, performs low-level PCMCIA initialization, registers
* this socket driver with Card Services, and then spawns the daemon
* thread which is the real workhorse of the socket driver.
*
* Please see linux/Documentation/arm/SA1100/PCMCIA for more information
* on the low-level kernel interface.
*
* Returns: 0 on success, -1 on error
*/
static int __init sa1100_pcmcia_driver_init(void){
servinfo_t info;
struct pcmcia_init pcmcia_init;
struct pcmcia_state state[SA1100_PCMCIA_MAX_SOCK];
struct pcmcia_state_array state_array;
unsigned int i, clock;
unsigned long mecr;
printk(KERN_INFO "SA-1100 PCMCIA (CS release %s)\n", CS_RELEASE);
CardServices(GetCardServicesInfo, &info);
if(info.Revision!=CS_RELEASE_CODE){
printk(KERN_ERR "Card Services release codes do not match\n");
return -1;
}
if(machine_is_assabet()){
#ifdef CONFIG_SA1100_ASSABET
if(machine_has_neponset()){
#ifdef CONFIG_ASSABET_NEPONSET
pcmcia_low_level=&neponset_pcmcia_ops;
#else
printk(KERN_ERR "Card Services disabled: missing Neponset support\n");
return -1;
#endif
}else{
pcmcia_low_level=&assabet_pcmcia_ops;
}
#endif
} else if (machine_is_freebird()) {
#ifdef CONFIG_SA1100_FREEBIRD
pcmcia_low_level = &freebird_pcmcia_ops;
#endif
} else if (machine_is_h3xxx()) {
#ifdef CONFIG_SA1100_H3XXX
pcmcia_low_level = &h3600_pcmcia_ops;
#endif
} else if (machine_is_cerf()) {
#ifdef CONFIG_SA1100_CERF
pcmcia_low_level = &cerf_pcmcia_ops;
#endif
} else if (machine_is_graphicsclient()) {
#ifdef CONFIG_SA1100_GRAPHICSCLIENT
pcmcia_low_level = &gcplus_pcmcia_ops;
#endif
} else if (machine_is_xp860()) {
#ifdef CONFIG_SA1100_XP860
pcmcia_low_level = &xp860_pcmcia_ops;
#endif
} else if (machine_is_yopy()) {
#ifdef CONFIG_SA1100_YOPY
pcmcia_low_level = &yopy_pcmcia_ops;
#endif
} else if (machine_is_shannon()) {
#ifdef CONFIG_SA1100_SHANNON
pcmcia_low_level = &shannon_pcmcia_ops;
#endif
} else if (machine_is_pangolin()) {
#ifdef CONFIG_SA1100_PANGOLIN
pcmcia_low_level = &pangolin_pcmcia_ops;
#endif
} else if (machine_is_jornada720()) {
#ifdef CONFIG_SA1100_JORNADA720
pcmcia_low_level = &jornada720_pcmcia_ops;
#endif
} else if(machine_is_pfs168()){
#ifdef CONFIG_SA1100_PFS168
pcmcia_low_level=&pfs168_pcmcia_ops;
#endif
} else if(machine_is_flexanet()){
#ifdef CONFIG_SA1100_FLEXANET
pcmcia_low_level=&flexanet_pcmcia_ops;
#endif
} else if(machine_is_simpad()){
#ifdef CONFIG_SA1100_SIMPAD
pcmcia_low_level=&simpad_pcmcia_ops;
#endif
} else if(machine_is_graphicsmaster()) {
#ifdef CONFIG_SA1100_GRAPHICSMASTER
pcmcia_low_level=&graphicsmaster_pcmcia_ops;
#endif
} else if(machine_is_adsbitsy()) {
#ifdef CONFIG_SA1100_ADSBITSY
pcmcia_low_level=&adsbitsy_pcmcia_ops;
#endif
} else if(machine_is_stork()) {
#ifdef CONFIG_SA1100_STORK
pcmcia_low_level=&stork_pcmcia_ops;
#endif
}
if (!pcmcia_low_level) {
printk(KERN_ERR "This hardware is not supported by the SA1100 Card Service driver\n");
return -ENODEV;
}
pcmcia_init.handler=sa1100_pcmcia_interrupt;
if((sa1100_pcmcia_socket_count=pcmcia_low_level->init(&pcmcia_init))<0){
printk(KERN_ERR "Unable to initialize kernel PCMCIA service.\n");
return -EIO;
}
state_array.size=sa1100_pcmcia_socket_count;
state_array.state=state;
if(pcmcia_low_level->socket_state(&state_array)<0){
printk(KERN_ERR "Unable to get PCMCIA status from kernel.\n");
return -EIO;
}
/* We initialize the MECR to default values here, because we are
* not guaranteed to see a SetIOMap operation at runtime.
*/
mecr=0;
clock = cpufreq_get(0);
for(i=0; i<sa1100_pcmcia_socket_count; ++i){
sa1100_pcmcia_socket[i].k_state=state[i];
/* This is an interim fix. Apparently, SetSocket is no longer
* called to initialize each socket (prior to the first detect
* event). For now, we'll just manually set up the mask.
*/
sa1100_pcmcia_socket[i].cs_state.csc_mask=SS_DETECT;
sa1100_pcmcia_socket[i].virt_io=(i==0)?PCMCIA_IO_0_BASE:PCMCIA_IO_1_BASE;
sa1100_pcmcia_socket[i].phys_attr=_PCMCIAAttr(i);
sa1100_pcmcia_socket[i].phys_mem=_PCMCIAMem(i);
MECR_FAST_SET(mecr, i, 0);
MECR_BSIO_SET(mecr, i,
sa1100_pcmcia_mecr_bs(SA1100_PCMCIA_IO_ACCESS, clock));
MECR_BSA_SET(mecr, i,
sa1100_pcmcia_mecr_bs(SA1100_PCMCIA_5V_MEM_ACCESS, clock));
MECR_BSM_SET(mecr, i,
sa1100_pcmcia_mecr_bs(SA1100_PCMCIA_5V_MEM_ACCESS, clock));
sa1100_pcmcia_socket[i].speed_io=SA1100_PCMCIA_IO_ACCESS;
sa1100_pcmcia_socket[i].speed_attr=SA1100_PCMCIA_5V_MEM_ACCESS;
sa1100_pcmcia_socket[i].speed_mem=SA1100_PCMCIA_5V_MEM_ACCESS;
}
MECR=mecr;
#ifdef CONFIG_CPU_FREQ
if(cpufreq_register_notifier(&sa1100_pcmcia_notifier_block) < 0){
printk(KERN_ERR "Unable to register CPU frequency change notifier\n");
return -ENXIO;
}
#endif
/* Only advertise as many sockets as we can detect: */
if(register_ss_entry(sa1100_pcmcia_socket_count,
&sa1100_pcmcia_operations)<0){
printk(KERN_ERR "Unable to register socket service routine\n");
return -ENXIO;
}
/* Start the event poll timer. It will reschedule by itself afterwards. */
sa1100_pcmcia_poll_event(0);
DEBUG(1, "sa1100: initialization complete\n");
return 0;
} /* sa1100_pcmcia_driver_init() */
static int __init sa1100_pcmcia_machine_init(void)
{
#ifdef CONFIG_SA1100_ASSABET
if(machine_is_assabet()) {
if(machine_has_neponset()) {
#ifdef CONFIG_ASSABET_NEPONSET
pcmcia_low_level = &neponset_pcmcia_ops;
#else
printk(KERN_ERR "Card Services disabled: missing Neponset support\n");
return -1;
#endif
} else
pcmcia_low_level = &assabet_pcmcia_ops;
}
#endif
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4())
pcmcia_low_level = &badge4_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_FREEBIRD
if (machine_is_freebird())
pcmcia_low_level = &freebird_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_H3600
if (machine_is_h3600())
pcmcia_low_level = &h3600_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_CERF
if (machine_is_cerf())
pcmcia_low_level = &cerf_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_GRAPHICSCLIENT
if (machine_is_graphicsclient())
pcmcia_low_level = &gcplus_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_XP860
if (machine_is_xp860())
pcmcia_low_level = &xp860_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_YOPY
if (machine_is_yopy())
pcmcia_low_level = &yopy_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_SHANNON
if (machine_is_shannon())
pcmcia_low_level = &shannon_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_PANGOLIN
if (machine_is_pangolin())
pcmcia_low_level = &pangolin_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_JORNADA720
if (machine_is_jornada720())
pcmcia_low_level = &jornada720_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_PFS168
if(machine_is_pfs168())
pcmcia_low_level = &pfs168_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_FLEXANET
if(machine_is_flexanet())
pcmcia_low_level = &flexanet_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_SIMPAD
if(machine_is_simpad())
pcmcia_low_level = &simpad_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_GRAPHICSMASTER
if(machine_is_graphicsmaster())
pcmcia_low_level = &graphicsmaster_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_ADSAGC
if(machine_is_adsagc())
pcmcia_low_level = &graphicsmaster_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_ADSBITSY
if(machine_is_adsbitsy())
pcmcia_low_level = &adsbitsy_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_ADSBITSYPLUS
if(machine_is_adsbitsyplus())
pcmcia_low_level = &adsbitsyplus_pcmcia_ops;
#endif
#ifdef CONFIG_SA1100_STORK
if(machine_is_stork())
pcmcia_low_level = &stork_pcmcia_ops;
#endif
if (!pcmcia_low_level) {
printk(KERN_ERR "This hardware is not supported by the SA1100 Card Service driver\n");
return -ENODEV;
}
return 0;
}
void __init neponset_map_io(void)
{
iotable_init(neponset_io_desc);
if (machine_has_neponset())
sa1100_register_uart_fns(&neponset_port_fns);
}
static int __init neponset_init(void)
{
int ret;
/*
* The Neponset is only present on the Assabet machine type.
*/
if (!machine_is_assabet())
return -ENODEV;
/*
* Ensure that the memory bus request/grant signals are setup,
* and the grant is held in its inactive state, whether or not
* we actually have a Neponset attached.
*/
sa1110_mb_disable();
if (!machine_has_neponset()) {
printk(KERN_DEBUG "Neponset expansion board not present\n");
return -ENODEV;
}
if (WHOAMI != 0x11) {
printk(KERN_WARNING "Neponset board detected, but "
"wrong ID: %02x\n", WHOAMI);
return -ENODEV;
}
/*
* Disable GPIO 0/1 drivers so the buttons work on the module.
*/
NCR_0 |= NCR_GP01_OFF;
/*
* Neponset has SA1111 connected to CS4. We know that after
* reset the chip will be configured for variable latency IO.
*/
/* FIXME: setup MSC2 */
/*
* Probe for a SA1111.
*/
ret = sa1111_probe(NEPONSET_SA1111_BASE);
if (ret < 0)
return ret;
/*
* We found it. Wake the chip up.
*/
sa1111_wake();
/*
* The SDRAM configuration of the SA1110 and the SA1111 must
* match. This is very important to ensure that SA1111 accesses
* don't corrupt the SDRAM. Note that this ungates the SA1111's
* MBGNT signal, so we must have called sa1110_mb_disable()
* beforehand.
*/
sa1111_configure_smc(1,
FExtr(MDCNFG, MDCNFG_SA1110_DRAC0),
FExtr(MDCNFG, MDCNFG_SA1110_TDL0));
/*
* We only need to turn on DCLK whenever we want to use the
* DMA. It can otherwise be held firmly in the off position.
*/
SKPCR |= SKPCR_DCLKEN;
/*
* Enable the SA1110 memory bus request and grant signals.
*/
sa1110_mb_enable();
neponset_init_irq();
return 0;
}
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);
}
static void __init
fixup_assabet(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
struct tag *t = (struct tag *)params;
/* 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");
/*
* Apparantly bootldr uses a param_struct. Groan.
*/
if (t->hdr.tag != ATAG_CORE)
convert_to_tag_list(params, 1);
if (t->hdr.tag != ATAG_CORE) {
t->hdr.tag = ATAG_CORE;
t->hdr.size = tag_size(tag_core);
t->u.core.flags = 0;
t->u.core.pagesize = PAGE_SIZE;
t->u.core.rootdev = RAMDISK_MAJOR << 8 | 0;
t = tag_next(t);
t->hdr.tag = ATAG_MEM;
t->hdr.size = tag_size(tag_mem32);
t->u.mem.start = 0xc0000000;
t->u.mem.size = 32 * 1024 * 1024;
t = tag_next(t);
/*
* Note that Neponset RAM is slower...
* and still untested.
* This would be a candidate for
* _real_ NUMA support.
*/
if (machine_has_neponset() && 0) {
t->hdr.tag = ATAG_MEM;
t->hdr.size = tag_size(tag_mem32);
t->u.mem.start = 0xd0000000;
t->u.mem.size = 32 * 1024 * 1024;
t = tag_next(t);
}
t->hdr.tag = ATAG_RAMDISK;
t->hdr.size = tag_size(tag_ramdisk);
t->u.ramdisk.flags = 1;
t->u.ramdisk.size = 8192;
t->u.ramdisk.start = 0;
t = tag_next(t);
t->hdr.tag = ATAG_INITRD;
t->hdr.size = tag_size(tag_initrd);
t->u.initrd.start = 0xc0800000;
t->u.initrd.size = 3 * 1024 * 1024;
t = tag_next(t);
t->hdr.tag = ATAG_NONE;
t->hdr.size = 0;
}
}