ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 0 insertions, 435 deletions

diff --git a/cpu/mpc8260/spi.c b/cpu/mpc8260/spi.c
deleted file mode 100644
index f5d2ac35a6..0000000000
--- a/cpu/mpc8260/spi.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/*
- * Copyright (c) 2001 Navin Boppuri / Prashant Patel
- *	<nboppuri@trinetcommunication.com>,
- *	<pmpatel@trinetcommunication.com>
- * Copyright (c) 2001 Gerd Mennchen <Gerd.Mennchen@icn.siemens.de>
- * Copyright (c) 2001-2003 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * MPC8260 CPM SPI interface.
- *
- * Parts of this code are probably not portable and/or specific to
- * the board which I used for the tests. Please send fixes/complaints
- * to wd@denx.de
- *
- */
-
-#include <common.h>
-#include <asm/cpm_8260.h>
-#include <linux/ctype.h>
-#include <malloc.h>
-#include <post.h>
-#include <net.h>
-
-#if defined(CONFIG_SPI)
-
-/* Warning:
- * You cannot enable DEBUG for early system initalization, i. e. when
- * this driver is used to read environment parameters like "baudrate"
- * from EEPROM which are used to initialize the serial port which is
- * needed to print the debug messages...
- */
-#undef	DEBUG
-
-#define SPI_EEPROM_WREN		0x06
-#define SPI_EEPROM_RDSR		0x05
-#define SPI_EEPROM_READ		0x03
-#define SPI_EEPROM_WRITE	0x02
-
-/* ---------------------------------------------------------------
- * Offset for initial SPI buffers in DPRAM:
- * We need a 520 byte scratch DPRAM area to use at an early stage.
- * It is used between the two initialization calls (spi_init_f()
- * and spi_init_r()).
- * The value 0x2000 makes it far enough from the start of the data
- * area (as well as from the stack pointer).
- * --------------------------------------------------------------- */
-#ifndef	CONFIG_SYS_SPI_INIT_OFFSET
-#define	CONFIG_SYS_SPI_INIT_OFFSET	0x2000
-#endif
-
-#define CPM_SPI_BASE 0x100
-
-#ifdef	DEBUG
-
-#define	DPRINT(a)	printf a;
-/* -----------------------------------------------
- * Helper functions to peek into tx and rx buffers
- * ----------------------------------------------- */
-static const char * const hex_digit = "0123456789ABCDEF";
-
-static char quickhex (int i)
-{
-	return hex_digit[i];
-}
-
-static void memdump (void *pv, int num)
-{
-	int i;
-	unsigned char *pc = (unsigned char *) pv;
-
-	for (i = 0; i < num; i++)
-		printf ("%c%c ", quickhex (pc[i] >> 4), quickhex (pc[i] & 0x0f));
-	printf ("\t");
-	for (i = 0; i < num; i++)
-		printf ("%c", isprint (pc[i]) ? pc[i] : '.');
-	printf ("\n");
-}
-#else	/* !DEBUG */
-
-#define	DPRINT(a)
-
-#endif	/* DEBUG */
-
-/* -------------------
- * Function prototypes
- * ------------------- */
-void spi_init (void);
-
-ssize_t spi_read (uchar *, int, uchar *, int);
-ssize_t spi_write (uchar *, int, uchar *, int);
-ssize_t spi_xfer (size_t);
-
-/* -------------------
- * Variables
- * ------------------- */
-
-#define MAX_BUFFER	0x104
-
-/* ----------------------------------------------------------------------
- * Initially we place the RX and TX buffers at a fixed location in DPRAM!
- * ---------------------------------------------------------------------- */
-static uchar *rxbuf =
-  (uchar *)&((immap_t *)CONFIG_SYS_IMMR)->im_dprambase
-			[CONFIG_SYS_SPI_INIT_OFFSET];
-static uchar *txbuf =
-  (uchar *)&((immap_t *)CONFIG_SYS_IMMR)->im_dprambase
-			[CONFIG_SYS_SPI_INIT_OFFSET+MAX_BUFFER];
-
-/* **************************************************************************
- *
- *  Function:    spi_init_f
- *
- *  Description: Init SPI-Controller (ROM part)
- *
- *  return:      ---
- *
- * *********************************************************************** */
-void spi_init_f (void)
-{
-	unsigned int dpaddr;
-
-	volatile spi_t *spi;
-	volatile immap_t *immr;
-	volatile cpm8260_t *cp;
-	volatile cbd_t *tbdf, *rbdf;
-
-	immr = (immap_t *)  CONFIG_SYS_IMMR;
-	cp   = (cpm8260_t *) &immr->im_cpm;
-
-	*(ushort *)(&immr->im_dprambase[PROFF_SPI_BASE]) = PROFF_SPI;
-	spi  = (spi_t *)&immr->im_dprambase[PROFF_SPI];
-
-/* 1 */
-	/* ------------------------------------------------
-	 * Initialize Port D SPI pins
-	 * (we are only in Master Mode !)
-	 * ------------------------------------------------ */
-
-	/* --------------------------------------------
-	 * GPIO or per. Function
-	 * PPARD[16] = 1 [0x00008000] (SPIMISO)
-	 * PPARD[17] = 1 [0x00004000] (SPIMOSI)
-	 * PPARD[18] = 1 [0x00002000] (SPICLK)
-	 * PPARD[12] = 0 [0x00080000] -> GPIO: (CS for ATC EEPROM)
-	 * -------------------------------------------- */
-	immr->im_ioport.iop_ppard |=  0x0000E000;	/* set  bits	*/
-	immr->im_ioport.iop_ppard &= ~0x00080000;	/* reset bit	*/
-
-	/* ----------------------------------------------
-	 * In/Out or per. Function 0/1
-	 * PDIRD[16] = 0 [0x00008000] -> PERI1: SPIMISO
-	 * PDIRD[17] = 0 [0x00004000] -> PERI1: SPIMOSI
-	 * PDIRD[18] = 0 [0x00002000] -> PERI1: SPICLK
-	 * PDIRD[12] = 1 [0x00080000] -> GPIO OUT: CS for ATC EEPROM
-	 * ---------------------------------------------- */
-	immr->im_ioport.iop_pdird &= ~0x0000E000;
-	immr->im_ioport.iop_pdird |= 0x00080000;
-
-	/* ----------------------------------------------
-	 * special option reg.
-	 * PSORD[16] = 1 [0x00008000] -> SPIMISO
-	 * PSORD[17] = 1 [0x00004000] -> SPIMOSI
-	 * PSORD[18] = 1 [0x00002000] -> SPICLK
-	 * ---------------------------------------------- */
-	immr->im_ioport.iop_psord |= 0x0000E000;
-
-	/* Initialize the parameter ram.
-	 * We need to make sure many things are initialized to zero
-	 */
-	spi->spi_rstate	= 0;
-	spi->spi_rdp	= 0;
-	spi->spi_rbptr	= 0;
-	spi->spi_rbc	= 0;
-	spi->spi_rxtmp	= 0;
-	spi->spi_tstate	= 0;
-	spi->spi_tdp	= 0;
-	spi->spi_tbptr	= 0;
-	spi->spi_tbc	= 0;
-	spi->spi_txtmp	= 0;
-
-	/* Allocate space for one transmit and one receive buffer
-	 * descriptor in the DP ram
-	 */
-#ifdef CONFIG_SYS_ALLOC_DPRAM
-	dpaddr = m8260_cpm_dpalloc (sizeof(cbd_t)*2, 8);
-#else
-	dpaddr = CPM_SPI_BASE;
-#endif
-
-/* 3 */
-	/* Set up the SPI parameters in the parameter ram */
-	spi->spi_rbase = dpaddr;
-	spi->spi_tbase = dpaddr + sizeof (cbd_t);
-
-	/***********IMPORTANT******************/
-
-	/*
-	 * Setting transmit and receive buffer descriptor pointers
-	 * initially to rbase and tbase. Only the microcode patches
-	 * documentation talks about initializing this pointer. This
-	 * is missing from the sample I2C driver. If you dont
-	 * initialize these pointers, the kernel hangs.
-	 */
-	spi->spi_rbptr = spi->spi_rbase;
-	spi->spi_tbptr = spi->spi_tbase;
-
-/* 4 */
-	/* Init SPI Tx + Rx Parameters */
-	while (cp->cp_cpcr & CPM_CR_FLG)
-		;
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_SPI_PAGE, CPM_CR_SPI_SBLOCK,
-							0, CPM_CR_INIT_TRX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG)
-		;
-
-/* 6 */
-	/* Set to big endian. */
-	spi->spi_tfcr = CPMFCR_EB;
-	spi->spi_rfcr = CPMFCR_EB;
-
-/* 7 */
-	/* Set maximum receive size. */
-	spi->spi_mrblr = MAX_BUFFER;
-
-/* 8 + 9 */
-	/* tx and rx buffer descriptors */
-	tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase];
-	rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase];
-
-	tbdf->cbd_sc &= ~BD_SC_READY;
-	rbdf->cbd_sc &= ~BD_SC_EMPTY;
-
-	/* Set the bd's rx and tx buffer address pointers */
-	rbdf->cbd_bufaddr = (ulong) rxbuf;
-	tbdf->cbd_bufaddr = (ulong) txbuf;
-
-/* 10 + 11 */
-	immr->im_spi.spi_spie = SPI_EMASK;		/* Clear all SPI events	*/
-	immr->im_spi.spi_spim = 0x00;			/* Mask  all SPI events */
-
-
-	return;
-}
-
-/* **************************************************************************
- *
- *  Function:    spi_init_r
- *
- *  Description: Init SPI-Controller (RAM part) -
- *		 The malloc engine is ready and we can move our buffers to
- *		 normal RAM
- *
- *  return:      ---
- *
- * *********************************************************************** */
-void spi_init_r (void)
-{
-	volatile spi_t *spi;
-	volatile immap_t *immr;
-	volatile cpm8260_t *cp;
-	volatile cbd_t *tbdf, *rbdf;
-
-	immr = (immap_t *)  CONFIG_SYS_IMMR;
-	cp   = (cpm8260_t *) &immr->im_cpm;
-
-	spi  = (spi_t *)&immr->im_dprambase[PROFF_SPI];
-
-	/* tx and rx buffer descriptors */
-	tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase];
-	rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase];
-
-	/* Allocate memory for RX and TX buffers */
-	rxbuf = (uchar *) malloc (MAX_BUFFER);
-	txbuf = (uchar *) malloc (MAX_BUFFER);
-
-	rbdf->cbd_bufaddr = (ulong) rxbuf;
-	tbdf->cbd_bufaddr = (ulong) txbuf;
-
-	return;
-}
-
-/****************************************************************************
- *  Function:    spi_write
- **************************************************************************** */
-ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len)
-{
-	int i;
-
-	memset(rxbuf, 0, MAX_BUFFER);
-	memset(txbuf, 0, MAX_BUFFER);
-	*txbuf = SPI_EEPROM_WREN;		/* write enable		*/
-	spi_xfer(1);
-	memcpy(txbuf, addr, alen);
-	*txbuf = SPI_EEPROM_WRITE;		/* WRITE memory array	*/
-	memcpy(alen + txbuf, buffer, len);
-	spi_xfer(alen + len);
-						/* ignore received data	*/
-	for (i = 0; i < 1000; i++) {
-		*txbuf = SPI_EEPROM_RDSR;	/* read status		*/
-		txbuf[1] = 0;
-		spi_xfer(2);
-		if (!(rxbuf[1] & 1)) {
-			break;
-		}
-		udelay(1000);
-	}
-	if (i >= 1000) {
-		printf ("*** spi_write: Time out while writing!\n");
-	}
-
-	return len;
-}
-
-/****************************************************************************
- *  Function:    spi_read
- **************************************************************************** */
-ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len)
-{
-	memset(rxbuf, 0, MAX_BUFFER);
-	memset(txbuf, 0, MAX_BUFFER);
-	memcpy(txbuf, addr, alen);
-	*txbuf = SPI_EEPROM_READ;		/* READ memory array	*/
-
-	/*
-	 * There is a bug in 860T (?) that cuts the last byte of input
-	 * if we're reading into DPRAM. The solution we choose here is
-	 * to always read len+1 bytes (we have one extra byte at the
-	 * end of the buffer).
-	 */
-	spi_xfer(alen + len + 1);
-	memcpy(buffer, alen + rxbuf, len);
-
-	return len;
-}
-
-/****************************************************************************
- *  Function:    spi_xfer
- **************************************************************************** */
-ssize_t spi_xfer (size_t count)
-{
-	volatile immap_t *immr;
-	volatile cpm8260_t *cp;
-	volatile spi_t *spi;
-	cbd_t *tbdf, *rbdf;
-	int tm;
-
-	DPRINT (("*** spi_xfer entered ***\n"));
-
-	immr = (immap_t *) CONFIG_SYS_IMMR;
-	cp   = (cpm8260_t *) &immr->im_cpm;
-
-	spi  = (spi_t *)&immr->im_dprambase[PROFF_SPI];
-
-	tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase];
-	rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase];
-
-	/* Board-specific: Set CS for device (ATC EEPROM) */
-	immr->im_ioport.iop_pdatd &= ~0x00080000;
-
-	/* Setting tx bd status and data length */
-	tbdf->cbd_sc  = BD_SC_READY | BD_SC_LAST | BD_SC_WRAP;
-	tbdf->cbd_datlen = count;
-
-	DPRINT (("*** spi_xfer: Bytes to be xferred: %d ***\n",
-							tbdf->cbd_datlen));
-
-	/* Setting rx bd status and data length */
-	rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP;
-	rbdf->cbd_datlen = 0;	 /* rx length has no significance */
-
-	immr->im_spi.spi_spmode = SPMODE_REV	|
-			SPMODE_MSTR	|
-			SPMODE_EN	|
-			SPMODE_LEN(8)	|	/* 8 Bits per char */
-			SPMODE_PM(0x8) ;	/* medium speed */
-	immr->im_spi.spi_spie = SPI_EMASK;		/* Clear all SPI events	*/
-	immr->im_spi.spi_spim = 0x00;			/* Mask  all SPI events */
-
-	/* start spi transfer */
-	DPRINT (("*** spi_xfer: Performing transfer ...\n"));
-	immr->im_spi.spi_spcom |= SPI_STR;		/* Start transmit */
-
-	/* --------------------------------
-	 * Wait for SPI transmit to get out
-	 * or time out (1 second = 1000 ms)
-	 * -------------------------------- */
-	for (tm=0; tm<1000; ++tm) {
-		if (immr->im_spi.spi_spie & SPI_TXB) {	/* Tx Buffer Empty */
-			DPRINT (("*** spi_xfer: Tx buffer empty\n"));
-			break;
-		}
-		if ((tbdf->cbd_sc & BD_SC_READY) == 0) {
-			DPRINT (("*** spi_xfer: Tx BD done\n"));
-			break;
-		}
-		udelay (1000);
-	}
-	if (tm >= 1000) {
-		printf ("*** spi_xfer: Time out while xferring to/from SPI!\n");
-	}
-	DPRINT (("*** spi_xfer: ... transfer ended\n"));
-
-#ifdef	DEBUG
-	printf ("\nspi_xfer: txbuf after xfer\n");
-	memdump ((void *) txbuf, 16);	/* dump of txbuf before transmit */
-	printf ("spi_xfer: rxbuf after xfer\n");
-	memdump ((void *) rxbuf, 16);	/* dump of rxbuf after transmit */
-	printf ("\n");
-#endif
-
-	/* Clear CS for device */
-	immr->im_ioport.iop_pdatd |= 0x00080000;
-
-	return count;
-}
-#endif	/* CONFIG_SPI */