Support for Toshiba's RBHMA4500 eval board for the TX4938.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/include/asm-mips/tx4938/spi.h b/include/asm-mips/tx4938/spi.h
new file mode 100644
index 000000000000..0dbbab820a5a
--- /dev/null
+++ b/include/asm-mips/tx4938/spi.h
@@ -0,0 +1,74 @@
+/*
+ * linux/include/asm-mips/tx4938/spi.h
+ * Definitions for TX4937/TX4938 SPI
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#ifndef __ASM_TX_BOARDS_TX4938_SPI_H
+#define __ASM_TX_BOARDS_TX4938_SPI_H
+
+/* SPI */
+struct spi_dev_desc {
+        unsigned int baud;
+        unsigned short tcss, tcsh, tcsr; /* CS setup/hold/recovery time */
+        unsigned int byteorder:1;       /* 0:LSB-First, 1:MSB-First */
+        unsigned int polarity:1;        /* 0:High-Active */
+        unsigned int phase:1;           /* 0:Sample-Then-Shift */
+};
+
+extern void txx9_spi_init(unsigned long base, int (*cs_func)(int chipid, int on)) __init;
+extern void txx9_spi_irqinit(int irc_irq) __init;
+extern int txx9_spi_io(int chipid, struct spi_dev_desc *desc,
+                       unsigned char **inbufs, unsigned int *incounts,
+                       unsigned char **outbufs, unsigned int *outcounts,
+                       int cansleep);
+extern int spi_eeprom_write_enable(int chipid, int enable);
+extern int spi_eeprom_read_status(int chipid);
+extern int spi_eeprom_read(int chipid, int address, unsigned char *buf, int len);
+extern int spi_eeprom_write(int chipid, int address, unsigned char *buf, int len);
+extern void spi_eeprom_proc_create(struct proc_dir_entry *dir, int chipid) __init;
+
+#define TXX9_IMCLK     (txx9_gbus_clock / 2)
+
+/*
+* SPI
+*/
+
+/* SPMCR : SPI Master Control */
+#define TXx9_SPMCR_OPMODE       0xc0
+#define TXx9_SPMCR_CONFIG       0x40
+#define TXx9_SPMCR_ACTIVE       0x80
+#define TXx9_SPMCR_SPSTP        0x02
+#define TXx9_SPMCR_BCLR 0x01
+
+/* SPCR0 : SPI Status */
+#define TXx9_SPCR0_TXIFL_MASK   0xc000
+#define TXx9_SPCR0_RXIFL_MASK   0x3000
+#define TXx9_SPCR0_SIDIE        0x0800
+#define TXx9_SPCR0_SOEIE        0x0400
+#define TXx9_SPCR0_RBSIE        0x0200
+#define TXx9_SPCR0_TBSIE        0x0100
+#define TXx9_SPCR0_IFSPSE       0x0010
+#define TXx9_SPCR0_SBOS 0x0004
+#define TXx9_SPCR0_SPHA 0x0002
+#define TXx9_SPCR0_SPOL 0x0001
+
+/* SPSR : SPI Status */
+#define TXx9_SPSR_TBSI  0x8000
+#define TXx9_SPSR_RBSI  0x4000
+#define TXx9_SPSR_TBS_MASK      0x3800
+#define TXx9_SPSR_RBS_MASK      0x0700
+#define TXx9_SPSR_SPOE  0x0080
+#define TXx9_SPSR_IFSD  0x0008
+#define TXx9_SPSR_SIDLE 0x0004
+#define TXx9_SPSR_STRDY 0x0002
+#define TXx9_SPSR_SRRDY 0x0001
+
+#endif /* __ASM_TX_BOARDS_TX4938_SPI_H */