/*
* Register the Flash platform device with the kernel.
*/
void __init lpc178x_flash_init(void)
{
unsigned int size = 0;
/*
* Calculate Flash and partition sizes at run time
*/
switch (lpc178x_platform_get()) {
case PLATFORM_LPC178X_EA_LPC1788:
size = 16*1024*1024;
break;
case PLATFORM_LPC178X_LNX_EVB:
size = 16*1024*1024;
break;
default:
printk(KERN_ERR "%s: Unknown platform %#x, exit\n", __func__,
lpc178x_platform_get());
goto xit;
}
flash_resources[0].end = flash_resources[0].start + size - 1;
flash_partitions[2].size = size - FLASH_JFFS2_OFFSET;
/*
* Register a platform device for the external Flash.
* If there is no external Flash in your design, or
* you don't want to use it in your application, just
* comment out the line below.
*/
platform_device_register(&flash_dev);
xit:
return;
}
/*
* Initialize the GPIO Alternative Functions of the LPC178x/7x.
*/
void __init lpc178x_iomux_init(void)
{
int platform;
/*
* Enable power on GPIO. This is not really necessary, because power
* on GPIO is enabled on SoC reset.
*/
lpc178x_periph_enable(LPC178X_SCC_PCONP_PCGPIO_MSK, 1);
/*
* Configure IOs depending on the board we're running on, and
* the configuration options we're using.
* Let's control platform strictly: if some of it does not need to
* play with iomux, it must be present in switch below (otherwise,
* the warning message will be printed-out)
*/
platform = lpc178x_platform_get();
switch (platform) {
case PLATFORM_LPC178X_EA_LPC1788:
lpc178x_gpio_config_table(
ea_lpc1788_gpio, ARRAY_SIZE(ea_lpc1788_gpio));
break;
case PLATFORM_LPC178X_LNX_EVB:
lpc178x_gpio_config_table(
lpc_lnx_evb_gpio, ARRAY_SIZE(lpc_lnx_evb_gpio));
break;
default:
printk(KERN_WARNING "%s: unsupported platform %d\n", __func__,
platform);
break;
}
}
void __init lpc178x_i2c_init(void)
{
#if defined(CONFIG_LPC178X_I2C0) || \
defined(CONFIG_LPC178X_I2C1) || \
defined(CONFIG_LPC178X_I2C2)
int platform = lpc178x_platform_get();
#endif
/*
* Register platform devices
*/
#if defined(CONFIG_LPC178X_I2C0)
platform_device_register(&lpc178x_i2c0_device);
switch (platform) {
case PLATFORM_LPC178X_EA_LPC1788:
i2c_register_board_info(0, ea_lpc1788_bdinfo_i2c0,
sizeof(ea_lpc1788_bdinfo_i2c0) /
sizeof (struct i2c_board_info));
break;
default:
break;
}
#endif
#if defined(CONFIG_LPC178X_I2C1)
platform_device_register(&lpc178x_i2c1_device);
#endif
#if defined(CONFIG_LPC178X_I2C2)
platform_device_register(&lpc178x_i2c2_device);
#endif
}
void __init lpc178x_fb_init(void)
{
int platform;
int have_lcd;
int ret;
/*
* Run board-specific code
*/
have_lcd = 0;
ret = 0;
platform = lpc178x_platform_get();
switch (platform) {
case PLATFORM_LPC178X_EA_LPC1788:
have_lcd = 1;
/*
* This code finally makes the function
* `ealcd004_pca9532_probe()` to execute.
*/
ret = i2c_add_driver(&ealcd004_pca9532_driver);
if (ret < 0)
goto out;
ret = i2c_register_board_info(0, &ea_lpc1788_lcd_004_dimmer, 1);
if (ret < 0)
goto out;
break;
case PLATFORM_LPC178X_LNX_EVB:
/* Do not configure LCD on LPC-LNX-EVB for now */
break;
default:
break;
}
if (!have_lcd)
goto out;
/*
* Enable the power on the LCD controller module of the MCU
* before we call `amba_device_register()`. This is required, because
* `amba_device_register()` will try to read the AMBA device ID
* from the LCD controller module's register map; if the power on
* the module is off, its registers are not accessible.
*/
lpc178x_periph_enable(LPC178X_SCC_PCONP_PCLCD_MSK, 1);
amba_device_register(&lpc178x_fb_device, &iomem_resource);
out:
if (ret < 0) {
printk(KERN_ERR "lpc178x fb: Could not initialize "
"the LCD screen.\n");
}
}
static int lpc178x_clcd_setup(struct clcd_fb *fb)
{
int platform;
int ret;
dma_addr_t dma;
ret = 0;
fb->panel = NULL;
/*
* Find the correct panel configuration
*/
platform = lpc178x_platform_get();
switch (platform) {
case PLATFORM_LPC178X_EA_LPC1788:
fb->panel = &ea_lpc1788_lcd_004_panel;
break;
default:
break;
}
if (!fb->panel) {
ret = -ENODEV;
goto out;
}
fb->fb.fix.smem_len = fb->panel->bpp *
fb->panel->mode.xres * fb->panel->mode.yres / 8;
fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev,
fb->fb.fix.smem_len, &dma, GFP_KERNEL);
if (!fb->fb.screen_base) {
printk(KERN_ERR "CLCD: unable to map framebuffer\n");
ret = -ENOMEM;
goto out;
}
fb->fb.fix.smem_start = dma;
out:
return ret;
}
void __init lpc178x_eth_init(void)
{
#if defined(CONFIG_LPC178X_MAC)
int platform;
/*
* Fix-up and register platform device
*/
platform = lpc178x_platform_get();
switch (platform) {
case PLATFORM_LPC178X_EA_LPC1788:
case PLATFORM_LPC178X_LNX_EVB:
lpc178x_net_device.dev.platform_data = &lpc178x_common_eth_data;
break;
default:
break;
}
platform_device_register(&lpc178x_net_device);
#endif
}
