[U-Boot-Users] [PATCH] sh: Add marubun's pcmcia driver
Nobuhiro Iwamatsu
iwamatsu at nigauri.org
Sat Nov 24 18:55:02 CET 2007
From: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Marubun pcmcia is a chip for PCMCIA used with SuperH.
Of course, this can be used even by other architectures.
When use this driver, came to be able to use CompactFlash
and Ethernet.
---
doc/README.marubun-pcmcia | 65 ++++++++++++++++++++++++++
drivers/Makefile | 1 +
drivers/marubun_pcmcia.c | 113 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 179 insertions(+), 0 deletions(-)
create mode 100644 doc/README.marubun-pcmcia
create mode 100644 drivers/marubun_pcmcia.c
diff --git a/doc/README.marubun-pcmcia b/doc/README.marubun-pcmcia
new file mode 100644
index 0000000..73c9f7f
--- /dev/null
+++ b/doc/README.marubun-pcmcia
@@ -0,0 +1,65 @@
+
+U-Boot MARUBUN MR-SHPC-01 PCMCIA controller driver
+ Last update 21/11/2007 by Nobuhiro Iwamatsu
+
+========================================================================================
+
+0. What's this?
+ This driver supports MARUBUN MR-SHPC-01.
+ url: http://www.marubun.co.jp/product/semicon/devices/qgc18e0000002n2z.html
+ (Sorry Japanese only.)
+
+ This chip is used with SuperH well, and adopted by the
+ reference board.
+ ex. * MS7750SE01
+ * MS7722SE01
+ * other
+
+ This chip doesn't support CardBus.
+
+1. base source code
+ The code is based on sources from the Linux kernel
+ ( arch/sh/kernel/cf-enabler.c ).
+
+2. How to use
+ The options you have to specify in the config file are (with the
+ value for my board as an example):
+
+ * CONFIG_MARUBUN_PCCARD
+ If you want to use this device driver, should define CONFIG_MARUBUN_PCCARD.
+ ex. #define CONFIG_MARUBUN_PCCARD
+
+ * CONFIG_PCMCIA_SLOT_A
+ Most devices have only one slot. You should define CONFIG_PCMCIA_SLOT_A .
+ ex. #define CONFIG_PCMCIA_SLOT_A 1
+
+ * CFG_MARUBUN_MRSHPC
+ This is MR-SHPC-01 PCMCIA controler base address.
+ You should do the setting matched to your environment.
+ ex. #define CFG_MARUBUN_MRSHPC 0xb03fffe0
+ ( for MS7722SE01 environment )
+
+ * CFG_MARUBUN_MW1
+ This is MR-SHPC-01 memory window base address.
+ You should do the setting matched to your environment.
+ ex. #define CFG_MARUBUN_MW1 0xb0400000
+ ( for MS7722SE01 environment )
+
+ * CFG_MARUBUN_MW1
+ This is MR-SHPC-01 attribute window base address.
+ You should do the setting matched to your environment.
+ ex. #define CFG_MARUBUN_MW2 0xb0500000
+ ( for MS7722SE01 environment )
+
+ * CFG_MARUBUN_MW1
+ This is MR-SHPC-01 I/O window base address.
+ You should do the setting matched to your environment.
+ ex. #define CFG_MARUBUN_IO 0xb0600000
+ ( for MS7722SE01 environment )
+
+3. Other
+ * Check Compact Flash only.
+ * Maybe, NE2000 compatible NIC is sure to move.
+
+Copyright (c) 2007
+ Nobuhiro Iwamatsu <iwamatsu at nigaur.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index e23b011..bd4349e 100755
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -125,6 +125,7 @@ COBJS-y += ti_pci1410a.o
COBJS-y += tqm8xx_pcmcia.o
COBJS-y += tsi108_pci.o
COBJS-y += w83c553f.o
+COBJS-y += marubun_pcmcia.o
#
# USB Drivers
diff --git a/drivers/marubun_pcmcia.c b/drivers/marubun_pcmcia.c
new file mode 100644
index 0000000..89b2015
--- /dev/null
+++ b/drivers/marubun_pcmcia.c
@@ -0,0 +1,113 @@
+/*
+ * Marubun MR-SHPC-01 PCMCIA controller device driver
+ *
+ * (c) 2007 Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
+ *
+ * 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
+ *
+ */
+
+#include <common.h>
+#include <config.h>
+#include <pcmcia.h>
+#include <asm/io.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+#define CONFIG_PCMCIA
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_IDE)
+#define CONFIG_PCMCIA
+#endif
+
+#if defined(CONFIG_PCMCIA) \
+ && (defined(CONFIG_MARUBUN_PCCARD))
+
+/* MR-SHPC-01 register */
+#define MRSHPC_MODE (CFG_MARUBUN_MRSHPC + 4)
+#define MRSHPC_OPTION (CFG_MARUBUN_MRSHPC + 6)
+#define MRSHPC_CSR (CFG_MARUBUN_MRSHPC + 8)
+#define MRSHPC_ISR (CFG_MARUBUN_MRSHPC + 10)
+#define MRSHPC_ICR (CFG_MARUBUN_MRSHPC + 12)
+#define MRSHPC_CPWCR (CFG_MARUBUN_MRSHPC + 14)
+#define MRSHPC_MW0CR1 (CFG_MARUBUN_MRSHPC + 16)
+#define MRSHPC_MW1CR1 (CFG_MARUBUN_MRSHPC + 18)
+#define MRSHPC_IOWCR1 (CFG_MARUBUN_MRSHPC + 20)
+#define MRSHPC_MW0CR2 (CFG_MARUBUN_MRSHPC + 22)
+#define MRSHPC_MW1CR2 (CFG_MARUBUN_MRSHPC + 24)
+#define MRSHPC_IOWCR2 (CFG_MARUBUN_MRSHPC + 26)
+#define MRSHPC_CDCR (CFG_MARUBUN_MRSHPC + 28)
+#define MRSHPC_PCIC_INFO (CFG_MARUBUN_MRSHPC + 30)
+
+int pcmcia_on (void)
+{
+ printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
+
+ /* Init */
+ outw( 0x0000 , MRSHPC_MODE );
+
+ if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */
+ if ((inw(MRSHPC_CSR) & 0x0080) == 0){
+ outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
+ }else{
+ outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */
+ }
+ udelay( 100000 ); /* wait for power on */
+ }else{
+ return 1;
+ }
+ /*
+ * PC-Card window open
+ * flag == COMMON/ATTRIBUTE/IO
+ */
+ /* common window open */
+ outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */
+ if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+ outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */
+ else
+ outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */
+
+ /* attribute window open */
+ outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */
+ if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+ outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */
+ else
+ outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */
+
+ /* I/O window open */
+ outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */
+ outw(0x0008,MRSHPC_CDCR); /* I/O card mode */
+ if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+ outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */
+ else
+ outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */
+
+ outw(0x0000,MRSHPC_ISR);
+ outw(0x2000,MRSHPC_ICR);
+ outb(0x00,(CFG_MARUBUN_MW2 + 0x206));
+ outb(0x42,(CFG_MARUBUN_MW2 + 0x200));
+
+ return 0;
+}
+
+int pcmcia_off (void)
+{
+ printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
+
+ return 0;
+}
+
+#endif /* CONFIG_MARUBUN_PCCARD */
--
1.5.2.4
More information about the U-Boot
mailing list