[U-Boot-Users] [PATCH 4/8] [SH] SuperH support
Nobuhiro Iwamatsu
iwamatsu at nigauri.org
Sun May 6 22:14:33 CEST 2007
Hi, all.
I wrote the code in which u-boot was supported for SH [0].
I am maintaining SH-IPL+g[1] that is the boot loader only for SH now.
However, I think that I will maintain u-boot in the future.
Now,
0. SDRAM controler
1. Internal serial device
2. Flash
3. Timer
working.
I plan to adopt it as a boot loader of the main in the future though
only several boards are supported now.
Please apply this patch .
regards,
Nobuhiro
[0] : http://america.renesas.com/fmwk.jsp?cnt=superh_family_landing.jsp&fp=/products/mpumcu/superh_family
[1] : http://git.nigauri.org
--
Nobuhiro Iwamatsu
E-Mail : iwamatsu at nigauri.org
GPG ID : 3170EBE9
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
diff --git a/examples/stubs.c b/examples/stubs.c
index 26df6e0..263dd8c 100644
--- a/examples/stubs.c
+++ b/examples/stubs.c
@@ -151,6 +151,22 @@ gd_t *global_data;
: \
: "i"(offsetof(gd_t, jt)), "i"(XF_ ##x) \
: "r8");
+#elif defined(CONFIG_SH)
+/*
+ * r13 holds the pointer to the global_data. r1 is a call clobbered.
+ */
+#define EXPORT_FUNC(x) \
+ asm volatile ( \
+ " .align 2\n" \
+ " .globl " #x "\n" \
+ #x ":\n" \
+ " mov r13, r1\n" \
+ " add %0, r1\n" \
+ " add %1, r1\n" \
+ " jmp @r1\n" \
+ " nop\n" \
+ " nop\n" \
+ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1");
#else
#error stubs definition missing for this architecture
#endif
diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h
new file mode 100644
index 0000000..44dca9f
--- /dev/null
+++ b/include/asm-sh/bitops.h
@@ -0,0 +1,13 @@
+#ifndef __ASM_SH_BITOPS_H_
+#define __ASM_SH_BITOPS_H_
+
+extern void set_bit(int nr, volatile void * a);
+extern void clear_bit(int nr, volatile void * a);
+extern int test_and_clear_bit(int nr, volatile void * a);
+extern void change_bit(unsigned long nr, volatile void *addr);
+extern int test_and_set_bit(int nr, volatile void * a);
+extern int test_and_change_bit(int nr, volatile void * addr);
+extern int test_bit(int nr, volatile void * a);
+extern int ffs(int i);
+
+#endif
diff --git a/include/asm-sh/byteorder.h b/include/asm-sh/byteorder.h
new file mode 100644
index 0000000..8836e65
--- /dev/null
+++ b/include/asm-sh/byteorder.h
@@ -0,0 +1,31 @@
+/*
+ * 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
+ */
+
+#ifndef __ASM_SH_BYTEORDER_H_
+#define __ASM_SH_BYTEORDER_H_
+
+#include <config.h>
+#include <asm/types.h>
+
+#ifdef __LITTLE_ENDIAN__
+#include <linux/byteorder/little_endian.h>
+#else
+#include <linux/byteorder/big_endian.h>
+#endif
+
+#endif
+
diff --git a/include/asm-sh/cpu_sh4.h b/include/asm-sh/cpu_sh4.h
new file mode 100644
index 0000000..e0275f3
--- /dev/null
+++ b/include/asm-sh/cpu_sh4.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_CPU_SH4_H_
+#define _ASM_CPU_SH4_H_
+#if defined (CONFIG_CPU_SH7750)
+#include <asm/cpu_sh7750.h>
+#elif defined (CONFIG_CPU_SH7780)
+#include <asm/cpu_sh7780.h>
+#else
+#error "Unknown SH4 variant"
+#endif
+#endif
diff --git a/include/asm-sh/cpu_sh7750.h b/include/asm-sh/cpu_sh7750.h
new file mode 100644
index 0000000..eb4f1af
--- /dev/null
+++ b/include/asm-sh/cpu_sh7750.h
@@ -0,0 +1,145 @@
+#ifndef _ASM_CPU_SH7750_H_
+#define _ASM_CPU_SH7750_H_
+
+#define PTEH 0xFF000000
+#define PTEL 0xFF000004
+#define TTB 0xFF000008
+#define TEA 0xFF00000C
+#define MMUCR 0xFF000010
+#define BASRA 0xFF000014
+#define BASRB 0xFF000018
+#define CCR 0xFF00001C
+#define TRA 0xFF000020
+#define EXPEVT 0xFF000024
+#define INTEVT 0xFF000028
+#define PTEA 0xFF000034
+#define QACR0 0xFF000038
+#define QACR1 0xFF00003C
+#define BARA 0xFF200000
+#define BAMRA 0xFF200004
+#define BBRA 0xFF200008
+#define BARB 0xFF20000C
+#define BAMRB 0xFF200010
+#define BBRB 0xFF200014
+#define BDRB 0xFF200018
+#define BDMRB 0xFF20001C
+#define BRCR 0xFF200020
+
+#define BCR1 0xFF800000
+#define BCR2 0xFF800004
+#define BCR3 0xFF800050
+#define BCR4 0xFE0A00F0
+#define WCR1 0xFF800008
+#define WCR2 0xFF80000C
+#define WCR3 0xFF800010
+#define MCR 0xFF800014
+#define PCR 0xFF800018
+#define RTCSR 0xFF80001C
+#define RTCNT 0xFF800020
+#define RTCOR 0xFF800024
+#define RFCR 0xFF800028
+#define PCTRA 0xFF80002C
+#define PDTRA 0xFF800030
+#define PCTRB 0xFF800040
+#define PDTRB 0xFF800044
+#define GPIOIC 0xFF800048
+#define SAR0 0xFFA00000
+#define DAR0 0xFFA00004
+#define DMATCR0 0xFFA00008
+#define CHCR0 0xFFA0000C
+#define SAR1 0xFFA00010
+#define DAR1 0xFFA00014
+#define DMATCR1 0xFFA00018
+#define CHCR1 0xFFA0001C
+#define SAR2 0xFFA00020
+#define DAR2 0xFFA00024
+#define DMATCR2 0xFFA00028
+#define CHCR2 0xFFA0002C
+#define SAR3 0xFFA00030
+#define DAR3 0xFFA00034
+#define DMATCR3 0xFFA00038
+#define CHCR3 0xFFA0003C
+#define DMAOR 0xFFA00040
+#define SAR4 0xFFA00050
+#define DAR4 0xFFA00054
+#define DMATCR4 0xFFA00058
+
+#define FRQCR 0xFFC00000
+#define STBCR 0xFFC00004
+#define WTCNT 0xFFC00008
+#define WTCSR 0xFFC0000C
+#define STBCR2 0xFFC00010
+#define R64CNT 0xFFC80000
+#define RSECCNT 0xFFC80004
+#define RMINCNT 0xFFC80008
+#define RHRCNT 0xFFC8000C
+#define RWKCNT 0xFFC80010
+#define RDAYCNT 0xFFC80014
+#define RMONCNT 0xFFC80018
+#define RYRCNT 0xFFC8001C
+#define RSECAR 0xFFC80020
+#define RMINAR 0xFFC80024
+#define RHRAR 0xFFC80028
+#define RWKAR 0xFFC8002C
+#define RDAYAR 0xFFC80030
+#define RMONAR 0xFFC80034
+#define RCR1 0xFFC80038
+#define RCR2 0xFFC8003C
+#define RCR3 0xFFC80050
+#define RYRAR 0xFFC80054
+#define ICR 0xFFD00000
+#define IPRA 0xFFD00004
+#define IPRB 0xFFD00008
+#define IPRC 0xFFD0000C
+#define IPRD 0xFFD00010
+#define INTPRI 0xFE080000
+#define INTREQ 0xFE080020
+#define INTMSK 0xFE080040
+#define INTMSKCL 0xFE080060
+#define CLKSTP 0xFE0A0000
+#define CLKSTPCLR 0xFE0A0008
+#define TSTR2 0xFE100004
+#define TCOR3 0xFE100008
+#define TCNT3 0xFE10000C
+#define TCR3 0xFE100010
+#define TCOR4 0xFE100014
+#define TCNT4 0xFE100018
+#define TCR4 0xFE10001C
+#define TOCR 0xFFD80000
+#define TSTR0 0xFFD80004
+#define TCOR0 0xFFD80008
+#define TCNT0 0xFFD8000C
+#define TCR0 0xFFD80010
+#define TCOR1 0xFFD80014
+#define TCNT1 0xFFD80018
+#define TCR1 0xFFD8001C
+#define TCOR2 0xFFD80020
+#define TCNT2 0xFFD80024
+#define TCR2 0xFFD80028
+#define TCPR2 0xFFD8002C
+#define SCSMR1 0xFFE00000
+#define SCBRR1 0xFFE00004
+#define SCSCR1 0xFFE00008
+#define SCTDR1 0xFFE0000C
+#define SCSSR1 0xFFE00010
+#define SCRDR1 0xFFE00014
+#define SCSCMR1 0xFFE00018
+#define SCSPTR1 0xFFE0001C
+#define SCF0_BASE SCSMR1
+#define SCSMR2 0xFFE80000
+#define SCBRR2 0xFFE80004
+#define SCSCR2 0xFFE80008
+#define SCFTDR2 0xFFE8000C
+#define SCFSR2 0xFFE80010
+#define SCFRDR2 0xFFE80014
+#define SCFCR2 0xFFE80018
+#define SCFDR2 0xFFE8001C
+#define SCSPTR2 0xFFE80020
+#define SCLSR2 0xFFE80024
+#define SCIF1_BASE SCSMR2
+#define SDIR 0xFFF00000
+#define SDDR 0xFFF00008
+#define SDINT 0xFFF00014
+
+#endif /* _ASM_CPU_SH7750_H_ */
+
diff --git a/include/asm-sh/global_data.h b/include/asm-sh/global_data.h
new file mode 100644
index 0000000..0a44a34
--- /dev/null
+++ b/include/asm-sh/global_data.h
@@ -0,0 +1,50 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * (C) Copyright 2007
+ * Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
+ *
+ * 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
+ */
+
+#ifndef __ASM_SH_GLOBALDATA_H_
+#define __ASM_SH_GLOBALDATA_H_
+
+typedef struct global_data
+{
+ bd_t *bd;
+ unsigned long flags;
+ unsigned long baudrate;
+ unsigned long cpu_clk; /* CPU clock in Hz! */
+ unsigned long have_console; /* serial_init() was called */
+ unsigned long ram_size; /* RAM size */
+ unsigned long reloc_off; /* Relocation Offset */
+ unsigned long env_addr; /* Address of Environment struct */
+ unsigned long env_valid; /* Checksum of Environment valid */
+ void **jt; /* Standalone app jump table */
+}gd_t;
+
+#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
+#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
+#define GD_FLG_SILENT 0x00004 /* Silent mode */
+
+#define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("r13")
+
+#endif /* __ASM_SH_GLOBALDATA_H_ */
More information about the U-Boot
mailing list