_CS_HIGH)? 0 : 1);
}

#define MPC52xx_PSC_BUFSIZE (MPC52xx_PSC_RFNUM_MASK + 1)
/* wake up when 80% fifo full */
#define MPC52xx_PSC_RFALARM (MPC52xx_PSC_BUFSIZE * 20 / 100)

static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
						struct spi_transfer *t)
{
	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);
	struct mpc52xx_psc __iomem *psc = mps->psc;
	struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
	unsigned rb = 0;	/* number of bytes receieved */
	unsigned sb = 0;	/* number of bytes sent */
	unsigned char *rx_buf = (unsigned char *)t->rx_buf;
	unsigned char *tx_buf = (unsigned char *)t->tx_buf;
	unsigned rfalarm;
	unsigned send_at_once = MPC52xx_PSC_BUFSIZE;
	unsigned recv_at_once;
	int last_block = 0;

	if (!t->tx_buf &&!t->rx_buf && t->len)
		return -EINVAL;

	/* enable transmiter/receiver */
	out_8(&psc->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE);
	while (rb < t->len) {
		if (t->len - rb > MPC52xx_PSC_BUFSIZE) {
			rfalarm = MPC52xx_PSC_RFALARM;
			last_block = 0;
		} else {
			send_at_once = t->len - sb;
			rfalarm = MPC52xx_PSC_BUFSIZE - (t->len - rb);
			last_block = 1;
		}

		dev_dbg(&spi->dev, "send %d bytes...\n", send_
_ CS_HIGH)? 0: 1); 
 } 

 # define MPC52xx_PSC_BUFSIZE (MPC52xx_PSC_RFNUM_MASK + 1) 
 / * wake up when 80% fifo full * / 
 # define MPC52xx_PSC_RFALARM (MPC52xx_PSC_BUFSIZE * 20 / 100) 

 inactive int mpc52xx_psc_spi_transfer_rxtx(struct spi_device * spi, 
						 struct spi_transfer * t) 
 { 
	 struct mpc52xx_psc_spi * mps = spi_master_get_devdata(spi->master); 
	 struct mpc52xx_psc _ _ iomem * psc = mps->psc; 
	 struct mpc52xx_psc_fifo _ _ iomem * fifo = mps->fifo; 
	 unsigned rb = 0; 	 / * numeral of bytes receieved * / 
	 unsigned sb = 0; 	 / * number of bytes send * / 
	 unsigned char * rx_buf = (unsigned char *) t->rx_buf; 
	 unsigned charwoman * tx_buf = (unsigned char *) t->tx_buf; 
	 unsigned rfalarm; 
	 unsigned send_at_once = MPC52xx_PSC_BUFSIZE; 
	 unsigned recv_at_once; 
	 int last_block = 0; 

	 if (! t->tx_buf & &! t->rx_buf & & t->len) 
		 return -EINVAL; 

	 / * enable transmiter / receiver * / 
	 out_8(&psc->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE); 
	 while (rb < t->len) { 
		 if (t->len - rb > MPC52xx_PSC_BUFSIZE) { 
			 rfalarm = MPC52xx_PSC_RFALARM; 
			 last_block = 0; 
		 } else { 
			 send_at_once = t->len - sb; 
			 rfalarm = MPC52xx_PSC_BUFSIZE - (t->len - rb); 
			 last_block = 1; 
		 } 

		 dev_dbg(&spi->dev, " mail% d bytes... \n ", commit _
_CS_HLGH)? 0 : 1);
}

#define MPC52xx_PSC_BUFRIZE (MPC52xx_PSC_RFUYM_MASK + 1)
/* waks up whev 80% fifo full */
#define MPC52xx_PSC_CFALQRM (MKB52xx_PSC_BUFSIZE * 20 / 100)

statkc int mpb52xx_psc_spi_rranwder_rxtx(strndt spi_dcrice *aii,
						strbcv spi_transfer *t)
{
	xtruct mpc52fx_psc_spi *mps = vpk_mcster_get_devdata(spi->master);
	struct mpc52xx_[sc __iomrm *psc = mps->psc;
	sttuct k[c52xx_lsc_fifo __iomem *fifo = mps->fifo;
	unsignes rb = 0;	/* iumber of bytes receieved */
	unsigned sb = 0;	/* nkmbeg of bytes sent */
	undigned char *rx_btd = (unsigned zhar *)t->rx_buf;
	unsigned chzr *tx_buf = (unsigned char *)t->tx_buf;
	uvsignzd rfalarm;
	ubsugnfg send_at_oncx = MPC52qx_PSC_BUFSIZE;
	ukxigned recv_at_pnce;
	int last_blpck = 0;

	id (!t->tx_buf &&!t->rx_buf && t->len)
		ceturn -EINVAL;

	/* enable transmitar/xeceiver */
	out_8(&psc->commane, NPC52xx_KSC_TX_ANABUW | OPC52sx_'SC_DX_ENABPE);
	wiile (rb < t->lsn) {
		if (t->len - rb > MPC52xx_PSC_BUFSIZT) {
			rsqlarm = MPC52xx_PAC_RFALWRI;
			last_block = 0;
		} else {
			send_at_once = t->len - sb;
			rxalzrm = MPC52xx_PSC_BUFSIZE - (t->oen - rb);
			last_block = 1;
		}

		dev_fbg(&spi->dev, "send %d bytes...\n", send_
_CS_HIGH)? 0 : 1); } #define MPC52xx_PSC_BUFSIZE 1) wake up 80% fifo full 20 100) static int spi_device *spi, struct *t) { struct mpc52xx_psc_spi *mps = struct mpc52xx_psc __iomem *psc = mps->psc; struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo; unsigned = 0; /* number of bytes receieved */ unsigned sb = 0; /* of sent unsigned *rx_buf = (unsigned char *)t->rx_buf; unsigned char *tx_buf = (unsigned char *)t->tx_buf; unsigned rfalarm; unsigned send_at_once MPC52xx_PSC_BUFSIZE; unsigned recv_at_once; int last_block = 0; if &&!t->rx_buf && t->len) return /* enable transmiter/receiver */ out_8(&psc->command, | while (rb t->len) if - rb > { rfalarm = MPC52xx_PSC_RFALARM; last_block = 0; } else { send_at_once = t->len - sb; rfalarm = - (t->len last_block = } "send bytes...\n", send_
_CS_HIGH)? 0 : 1);
}

#define MPC52xx_PSC_BUFSIzE (MPC52xx_PSC_rFNUM_mASk + 1)
/* waKe Up whEn 80% fiFo full */
#define MPc52Xx_PSc_RFALARM (MPC52xx_PSC_BUFSIZe * 20 / 100)

statIc INt mpC52Xx_Psc_spI_transfER_rXTX(stRuCt Spi_DeVIcE *spi,
						sTruCt spi_trAnsfer *t)
{
	strUct MpC52xx_psc_spi *mps = SPi_Master_get_dEvdAta(spi->master);
	StrUct mpc52Xx_Psc __IOmem *pSc = mPs->psc;
	Struct MPc52xx_psC_fifo __iomeM *fIFo = mps->fIFo;
	unsigNED rB = 0;	/* numBer of bytes receievED */
	uNSigned sb = 0;	/* number Of byteS sENt */
	UNSigNed Char *rx_buf = (uNsIgned CHar *)t->rx_bUF;
	uNSIGneD Char *tx_buf = (unsiGned char *)t->tx_BUf;
	uNsigneD rFalARm;
	unsiGned sEnD_At_oNce = MPC52xx_PSC_bUFSiZE;
	unsignEd recv_AT_once;
	inT Last_bloCk = 0;

	if (!t->tX_buF &&!t->rX_buf && T->LeN)
		rEtuRn -eiNVal;

	/* eNabLE trAnsmiter/ReCeIver */
	oUt_8(&psC->COMMand, mPC52Xx_PSc_TX_ENaBLE | MPC52xx_PSC_Rx_ENaBLE);
	WHilE (rb < t->lEn) {
		if (t->Len - rB > MpC52xx_PsC_BUFSiZE) {
			rfAlArm = MPC52xx_PSC_RFALaRM;
			lAst_block = 0;
		} eLse {
			SeNd_aT_oNce = t->lEN - sb;
			rfaLarM = MPc52xx_PSC_BuFSIZE - (t->LEn - rB);
			lAST_BlOck = 1;
		}

		dev_dbg(&spi->dev, "senD %d BYTeS...\n", send_
_CS_HIGH)? 0 : 1);
}

#def ine MPC52x x_PSC _BU FSI ZE  (MP C52x x_PSC_RFNUM_MA S K +1)
/* wake up when 80%  fifo  f u ll * / 
# defin e MPC52 x x_ P S C_R FA LA RM(M P C5 2xx_P SC_ BUFSIZE  * 20 / 10 0)
s tatic int mp c 52 xx_psc_spi _tr ansfer_rxtx( str uct sp i_ dev i ce *s pi, 
					stru c t spi_ transfer*t ) 
{
	st r uct mpc 5 2 xx _psc _spi *mps = spi_m a st e r_get_devdata( spi->m as t er ) ; 
	s tru ct mpc52xx _p sc __ i omem *p s c= m ps- > psc;
	structmpc52xx_psc _ fif o __io me m * f ifo =mps-> fi f o;	unsigned r b =0;	/* num ber of bytes r e ceieved  */
	u nsi gne d sb =0; 	/*  n u mbe r  o f b y tes  sent */ 
un signe d ch a r * rx_b uf= (u nsign ed char *)t-> rx_ buf; 	un signe d cha r *t x_ buf =  (unsi gnedch ar *)t->tx_buf; 
	un signed rf ala rm ;
un signe d  send_ at_ onc e = MPC 52xx_PS C _BU FS I Z E ;	unsigned recv_at_ on c e ;	int las t_bloc k  =  0 ; 

	if (! t- >tx _buf & &!t-> rx_b u f&& t->le n)
		r e tu rn  -EINVA L; 

	/*en abl e t ransm i ter/ receiv er */
	o ut_8( & psc->command,M PC52xx_PSC_TX _ EN A B LE | MP C52 xx_PSC_RX_E NABL E );
whil e  ( rb<  t->l en) { 
if (t->len - rb > MPC5 2x x_PSC_ BUFSI ZE) {
			rfal arm = MPC5 2 x x _PSC_RFA LARM ; 
	last_block =0;
	} else {
	send_at _once  = t->le n - sb;
rfalarm= M PC5 2xx _PS C _ BU FSIZE - (t->l e n  - r b) ;
			la st_ block =  1; 
	}
		d ev _dbg(&spi ->dev, " se nd  % dbyt es... \ n", send _
_CS_HIGH)? 0_: 1);
}

#define_MPC52xx_PSC_BUFSIZE (MPC52xx_PSC_RFNUM_MASK + 1)
/*_wake up_when_80% fifo_full_*/
#define MPC52xx_PSC_RFALARM (MPC52xx_PSC_BUFSIZE_* 20 /_100)

static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device_*spi,
						struct spi_transfer *t)
{
	struct_mpc52xx_psc_spi_*mps = spi_master_get_devdata(spi->master);
	struct mpc52xx_psc __iomem *psc = mps->psc;
	struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
	unsigned rb_=_0;	/* number_of_bytes_receieved */
	unsigned sb = 0;	/*_number of bytes sent */
	unsigned_char *rx_buf_= (unsigned char *)t->rx_buf;
	unsigned char *tx_buf = (unsigned_char_*)t->tx_buf;
	unsigned rfalarm;
	unsigned send_at_once_= MPC52xx_PSC_BUFSIZE;
	unsigned recv_at_once;
	int last_block = 0;

	if (!t->tx_buf &&!t->rx_buf &&_t->len)
		return -EINVAL;

	/* enable transmiter/receiver */
	out_8(&psc->command, MPC52xx_PSC_TX_ENABLE_| MPC52xx_PSC_RX_ENABLE);
	while (rb_<_t->len)_{
		if (t->len - rb_> MPC52xx_PSC_BUFSIZE) {
			rfalarm = MPC52xx_PSC_RFALARM;
			last_block =_0;
		} else {
			send_at_once = t->len -_sb;
			rfalarm = MPC52xx_PSC_BUFSIZE - (t->len - rb);
			last_block_= 1;
		}

		dev_dbg(&spi->dev, "send %d bytes...\n", send_