Main purpose of this is to delete
*physical = address & 0x1fffffff;
at target-sh4/helper.c:449, using new mmio rule introduced by #5849
This masking is a nice trick to realize P4/A7 duality of SH registers.
But, IMHO, it is logically wrong.
Most of SH4 cpu control registers in P4 area(0xfc000000...0xffffffff) have
one more address called A7 which is usually P4 address with upper 3bits masked.
This is an address only appears in TLB's physical address part.
Current code use trick writing drivers as if they are really in A7
(that's why you see many *_A7 in hw/sh*.c), and using translation P4 to A7.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5935 c046a42c-6fe2-441c-8c8c-71466251a162
This patch adds IRL(4bit encoded 15 level interrupt input) support
to SH using qemu_irq as a multi level (!=on/off) signal.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5925 c046a42c-6fe2-441c-8c8c-71466251a162
This patch adds emulation for a CompactFlash on sh4/r2d board.
The device is CF, but wired to be worked as True-IDE mode, and connected
directly to SH bus. So, this code is to support generally mmio based
IDEs which are supported by "pata_platform" driver in linux kernel.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5924 c046a42c-6fe2-441c-8c8c-71466251a162
This patches makes SH serial emulation use qemu_irq in its interface.
* hw/sh.h (sh_serial_init): Take qemu_irq, not intc_source.
* hw/sh7750.c (sh7750_init): Adjust.
* hw/sh_intc.c (sh_intc_set_irq): Don't assert or deassert
irq more than once.
* hw/sh_serial.c (sh_serial_state): Use qemu_irq, not intc_source.
(sh_serial_clear_fifo, sh_serial_ioport_write)
(sh_serial_receive_byte): Adjust.
(sh_serial_init): Take qemu_irq, not intc_source.
(Vladimir Prus)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5769 c046a42c-6fe2-441c-8c8c-71466251a162
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