/* ------------------------------------------------------------------------- */
+#ifdef CFG_BRIGHTNESS
+static void spi_init(void);
+static void wait_transmit_done(void);
+static void tsc2000_write(unsigned int page, unsigned int reg,
+ unsigned int data);
+static void tsc2000_set_brightness(void);
+#endif
#ifdef CONFIG_MODEM_SUPPORT
static int key_pressed(void);
extern void disable_putc(void);
* is that timers are not available yet, so we use a manually timed
* loop.
*/
-#define KBD_MDELAY 100000 /* 1000 */
-static void mdelay_no_timer (int msec)
+#define KBD_MDELAY 5000
+static void udelay_no_timer (int usec)
{
DECLARE_GLOBAL_DATA_PTR;
int i;
- int delay = msec * 3;
+ int delay = usec * 3;
for (i = 0; i < delay; i ++) gd->bd->bi_arch_number = 145;
}
int board_init ()
{
+#if defined(CONFIG_VFD)
+ extern int vfd_init_clocks(void);
+#endif
DECLARE_GLOBAL_DATA_PTR;
+ S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
/* memory and cpu-speed are setup before relocation */
#ifdef CONFIG_TRAB_50MHZ
/* change the clock to be 50 MHz 1:1:1 */
/* MDIV:0x5c PDIV:4 SDIV:2 */
- rMPLLCON = 0x5c042;
- rCLKDIVN = 0;
+ clk_power->MPLLCON = 0x5c042;
+ clk_power->CLKDIVN = 0;
#else
/* change the clock to be 133 MHz 1:2:4 */
/* MDIV:0x7d PDIV:4 SDIV:1 */
- rMPLLCON = 0x7d041;
- rCLKDIVN = 3;
+ clk_power->MPLLCON = 0x7d041;
+ clk_power->CLKDIVN = 3;
#endif
/* set up the I/O ports */
- rPACON = 0x3ffff;
- rPBCON = 0xaaaaaaaa;
- rPBUP = 0xffff;
+ gpio->PACON = 0x3ffff;
+ gpio->PBCON = 0xaaaaaaaa;
+ gpio->PBUP = 0xffff;
/* INPUT nCTS0 nRTS0 TXD[1] TXD[0] RXD[1] RXD[0] */
/* 00, 10, 10, 10, 10, 10, 10 */
- rPFCON = (2<<0) | (2<<2) | (2<<4) | (2<<6) | (2<<8) | (2<<10);
+ gpio->PFCON = (2<<0) | (2<<2) | (2<<4) | (2<<6) | (2<<8) | (2<<10);
#ifdef CONFIG_HWFLOW
/* do not pull up RXD0, RXD1, TXD0, TXD1, CTS0, RTS0 */
- rPFUP = (1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<4) | (1<<5);
+ gpio->PFUP = (1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<4) | (1<<5);
#else
/* do not pull up RXD0, RXD1, TXD0, TXD1 */
- rPFUP = (1<<0) | (1<<1) | (1<<2) | (1<<3);
+ gpio->PFUP = (1<<0) | (1<<1) | (1<<2) | (1<<3);
#endif
- rPGCON = 0x0;
- rPGUP = 0x0;
- rOPENCR= 0x0;
+ gpio->PGCON = 0x0;
+ gpio->PGUP = 0x0;
+ gpio->OPENCR= 0x0;
/* arch number of SAMSUNG-Board */
/* MACH_TYPE_SMDK2400 */
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x0c000100;
-#ifdef CONFIG_MODEM_SUPPORT
- /* This stuff is needed to get interrupts on stop-position
- * contact events.
- * (Copied from the LCD initialization routine.)
- */
- if (rLCDCON1 == 0)
- {
- rPCCON = (rPCCON & 0xFFFFFF00)| 0x000000AA;
- rPDCON = (rPDCON & 0xFFFFFF03)| 0x000000A8;
-#if 0
- rPDCON = (rPDCON & 0xFFFFFF00)| 0x000000AA;
-#endif
- rLCDCON2 = 0x000DC000;
- rLCDCON3 = 0x0051000A;
- rLCDCON4 = 0x00000001;
- rLCDCON5 = 0x00000440;
- rLCDCON1 = 0x00000B75;
- }
+ /* Make sure both buzzers are turned off */
+ gpio->PDCON |= 0x5400;
+ gpio->PDDAT &= ~0xE0;
+
+#ifdef CONFIG_VFD
+ vfd_init_clocks();
+#endif /* CONFIG_VFD */
- mdelay_no_timer (KBD_MDELAY);
+#ifdef CONFIG_MODEM_SUPPORT
+ udelay_no_timer (KBD_MDELAY);
if (key_pressed()) {
disable_putc(); /* modem doesn't understand banner etc */
free (str);
}
+#ifdef CFG_BRIGHTNESS
+ tsc2000_set_brightness();
+#endif
return (0);
}
return (compare_magic(KBD_DATA, CONFIG_MODEM_KEY_MAGIC) == 0);
}
#endif /* CONFIG_MODEM_SUPPORT */
+
+#ifdef CFG_BRIGHTNESS
+
+static inline void SET_CS_TOUCH(void)
+{
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+ gpio->PDDAT &= 0x5FF;
+}
+
+static inline void CLR_CS_TOUCH(void)
+{
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+ gpio->PDDAT |= 0x200;
+}
+
+static void spi_init(void)
+{
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+ S3C24X0_SPI * const spi = S3C24X0_GetBase_SPI();
+ int i;
+
+ /* Configure I/O ports. */
+ gpio->PDCON = (gpio->PDCON & 0xF3FFFF) | 0x040000;
+ gpio->PGCON = (gpio->PGCON & 0x0F3FFF) | 0x008000;
+ gpio->PGCON = (gpio->PGCON & 0x0CFFFF) | 0x020000;
+ gpio->PGCON = (gpio->PGCON & 0x03FFFF) | 0x080000;
+
+ CLR_CS_TOUCH();
+
+ spi->ch[0].SPPRE = 0x1F; /* Baudrate ca. 514kHz */
+ spi->ch[0].SPPIN = 0x01; /* SPI-MOSI holds Level after last bit */
+ spi->ch[0].SPCON = 0x1A; /* Polling, Prescaler, Master, CPOL=0, CPHA=1 */
+
+ /* Dummy byte ensures clock to be low. */
+ for (i = 0; i < 10; i++) {
+ spi->ch[0].SPTDAT = 0xFF;
+ }
+ wait_transmit_done();
+}
+
+static void wait_transmit_done(void)
+{
+ S3C24X0_SPI * const spi = S3C24X0_GetBase_SPI();
+
+ while (!(spi->ch[0].SPSTA & 0x01)); /* wait until transfer is done */
+}
+
+static void tsc2000_write(unsigned int page, unsigned int reg,
+ unsigned int data)
+{
+ S3C24X0_SPI * const spi = S3C24X0_GetBase_SPI();
+ unsigned int command;
+
+ SET_CS_TOUCH();
+ command = 0x0000;
+ command |= (page << 11);
+ command |= (reg << 5);
+
+ spi->ch[0].SPTDAT = (command & 0xFF00) >> 8;
+ wait_transmit_done();
+ spi->ch[0].SPTDAT = (command & 0x00FF);
+ wait_transmit_done();
+ spi->ch[0].SPTDAT = (data & 0xFF00) >> 8;
+ wait_transmit_done();
+ spi->ch[0].SPTDAT = (data & 0x00FF);
+ wait_transmit_done();
+
+ CLR_CS_TOUCH();
+}
+
+static void tsc2000_set_brightness(void)
+{
+ uchar tmp[10];
+ int i, br;
+
+ spi_init();
+ tsc2000_write(1, 2, 0x0); /* Power up DAC */
+
+ i = getenv_r("brightness", tmp, sizeof(tmp));
+ br = (i > 0)
+ ? (int) simple_strtoul (tmp, NULL, 10)
+ : CFG_BRIGHTNESS;
+
+ tsc2000_write(0, 0xb, br & 0xff);
+}
+#endif
projects / u-boot / blobdiff