diff options
Diffstat (limited to 'package/uboot-ifxmips/files/cpu/mips/danube/ifx_asc.c')
| -rw-r--r-- | package/uboot-ifxmips/files/cpu/mips/danube/ifx_asc.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/package/uboot-ifxmips/files/cpu/mips/danube/ifx_asc.c b/package/uboot-ifxmips/files/cpu/mips/danube/ifx_asc.c deleted file mode 100644 index 52c6cb271..000000000 --- a/package/uboot-ifxmips/files/cpu/mips/danube/ifx_asc.c +++ /dev/null @@ -1,257 +0,0 @@ -/***************************************************************************** - * DANUBE BootROM - * Copyright (c) 2005, Infineon Technologies AG, All rights reserved - * IFAP DC COM SD - *****************************************************************************/ - -#include <config.h> -//#include <lib.h> -#include <asm/danube.h> -#include <asm/addrspace.h> -#include <asm/ifx_asc.h> - - -#define ASC_FIFO_PRESENT -#define SET_BIT(reg, mask) reg |= (mask) -#define CLEAR_BIT(reg, mask) reg &= (~mask) -#define CLEAR_BITS(reg, mask) CLEAR_BIT(reg, mask) -#define SET_BITS(reg, mask) SET_BIT(reg, mask) -#define SET_BITFIELD(reg, mask, off, val) {reg &= (~mask); reg |= (val << off);} - - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned long u32; -typedef signed long s32; -typedef unsigned int uint; -typedef unsigned long ulong; -typedef volatile unsigned short vuint; - - - -void serial_setbrg (void); - -/*TODO: undefine this !!!*/ -#undef DEBUG_ASC_RAW -#ifdef DEBUG_ASC_RAW -#define DEBUG_ASC_RAW_RX_BUF 0xA0800000 -#define DEBUG_ASC_RAW_TX_BUF 0xA0900000 -#endif - -static volatile DanubeAsc_t *pAsc = (DanubeAsc_t *)DANUBE_ASC1; - -typedef struct{ - u16 fdv; /* 0~511 fractional divider value*/ - u16 reload; /* 13 bit reload value*/ -} ifx_asc_baud_reg_t; - -#ifdef ON_VENUS -/*9600 @1.25M rel 00.08*/ -//#define FDV 503 -//#define RELOAD 7 -/*9600 @0.625M rel final00.01 & rtl_freeze*/ -#define FDV 503 -#define RELOAD 3 -/* first index is DDR_SEL, second index is FPI_SEL */ -#endif -static ifx_asc_baud_reg_t g_danube_asc_baud[4][2] = -{ -#ifdef ON_VENUS - {{503,3},{503,3}}, /* 1152000 @ 166.67M and half*/ - {{503,3},{503,3}}, /* 1152000 @ 133.3M and half*/ - {{503,3},{503,3}}, /* 1152000 @ 111.11M and half*/ - {{503.3},{503,3}} /* 1152000 @ 83.33M and half*/ -#else -/* TAPEOUT table */ - {{436,76},{419,36}}, /* 1152000 @ 166.67M and half*/ - {{453,63},{453,31}}, /* 1152000 @ 133.3M and half*/ - {{501,58},{510,29}}, /* 1152000 @ 111.11M and half*/ - {{419.36},{453,19}} /* 1152000 @ 83.33M and half*/ -#endif -}; -/****************************************************************************** -* -* asc_init - initialize a Danube ASC channel -* -* This routine initializes the number of data bits, parity -* and set the selected baud rate. Interrupts are disabled. -* Set the modem control signals if the option is selected. -* -* RETURNS: N/A -*/ - -int serial_init (void) -{ - - /* and we have to set CLC register*/ - CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS); - SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001); - - /* initialy we are in async mode */ - pAsc->asc_con = ASCCON_M_8ASYNC; - - /* select input port */ - pAsc->asc_pisel = (CONSOLE_TTY & 0x1); - - /* TXFIFO's filling level */ - SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK, - ASCTXFCON_TXFITLOFF, DANUBEASC_TXFIFO_FL); - /* enable TXFIFO */ - SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN); - - /* RXFIFO's filling level */ - SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK, - ASCRXFCON_RXFITLOFF, DANUBEASC_RXFIFO_FL); - /* enable RXFIFO */ - SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN); - - /* set baud rate */ - serial_setbrg(); - - /* enable error signals & Receiver enable */ - SET_BIT(pAsc->asc_whbstate, ASCWHBSTATE_SETREN|ASCCON_FEN|ASCCON_TOEN|ASCCON_ROEN); - - return 0; -} - -void serial_setbrg (void) -{ - u32 uiReloadValue, fdv; - -#if defined(ON_IKOS) - /*1200 @77K */ - fdv=472; - uiReloadValue=5; -#else - /*venus & tapeout */ - u32 ddr_sel,fpi_sel; - ddr_sel = (* DANUBE_CGU_SYS) & 0x3; - fpi_sel = ((* DANUBE_CGU_SYS) & 0x40)?1:0; - fdv= g_danube_asc_baud[ddr_sel][fpi_sel].fdv; - uiReloadValue=g_danube_asc_baud[ddr_sel][fpi_sel].reload; -#endif //ON_IKOS - /* Disable Baud Rate Generator; BG should only be written when R=0 */ - CLEAR_BIT(pAsc->asc_con, ASCCON_R); - - /* Enable Fractional Divider */ - SET_BIT(pAsc->asc_con, ASCCON_FDE); /* FDE = 1 */ - - /* Set fractional divider value */ - pAsc->asc_fdv = fdv & ASCFDV_VALUE_MASK; - - /* Set reload value in BG */ - pAsc->asc_bg = uiReloadValue; - - /* Enable Baud Rate Generator */ - SET_BIT(pAsc->asc_con, ASCCON_R); /* R = 1 */ -} - - -void serial_putc (const char c) -{ - u32 txFl = 0; -#ifdef DEBUG_ASC_RAW - static u8 * debug = (u8 *) DEBUG_ASC_RAW_TX_BUF; - *debug++=c; -#endif - if (c == '\n') - serial_putc ('\r'); - /* check do we have a free space in the TX FIFO */ - /* get current filling level */ - do - { - txFl = ( pAsc->asc_fstat & ASCFSTAT_TXFFLMASK ) >> ASCFSTAT_TXFFLOFF; - } - while ( txFl == DANUBEASC_TXFIFO_FULL ); - - pAsc->asc_tbuf = c; /* write char to Transmit Buffer Register */ - - /* check for errors */ - if ( pAsc->asc_state & ASCSTATE_TOE ) - { - SET_BIT(pAsc->asc_whbstate, ASCWHBSTATE_CLRTOE); - return; - } -} - -void serial_puts (const char *s) -{ - while (*s) - { - serial_putc (*s++); - } -} - -int asc_inb(int timeout) -{ - u32 symbol_mask; - char c; - while ((pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) { - } - symbol_mask = ((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff); - c = (char)(pAsc->asc_rbuf & symbol_mask); - return (c); -} - -int serial_getc (void) -{ - char c; - while ((pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ); - c = (char)(pAsc->asc_rbuf & 0xff); - -#ifdef DEBUG_ASC_RAW - static u8* debug=(u8*)(DEBUG_ASC_RAW_RX_BUF); - *debug++=c; -#endif - return c; -} - - - -int serial_tstc (void) -{ - int res = 1; - -#ifdef ASC_FIFO_PRESENT - if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) - { - res = 0; - } -#else - if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) & - FBS_ISR_AR)) - - { - res = 0; - } -#endif -#if 0 - else if ( pAsc->asc_con & ASCCON_FE ) - { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE); - res = 0; - } - else if ( pAsc->asc_con & ASCCON_PE ) - { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE); - res = 0; - } - else if ( pAsc->asc_con & ASCCON_OE ) - { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); - res = 0; - } -#endif - return res; -} - - -int serial_start(void) -{ - return 1; -} - -int serial_stop(void) -{ - return 1; -} |