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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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d93f7de8c5
This patch supports "m32r-g00ff" bootloader for an OPSPUT platform.
Applying this patch, it is possible to do ATA-boot from an IDE drive or
HTTP-boot from network by m32r-g00ff.
* arch/m32r/boot/compressed/m32r_sio.c: Fix hangup on OPSPUT at boot.
* arch/m32r/kernel/io_opsput.c: IDE support for OPSPUT.
* arch/m32r/kernel/setup_opsput.c: ditto.
* include/asm-m32r/ide.h: ditto.
Signed-off-by: Kazuhiro Inaoka <inaoka@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/*
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* arch/m32r/boot/compressed/m32r_sio.c
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*
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* 2003-02-12: Takeo Takahashi
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* 2006-11-30: OPSPUT support by Kazuhiro Inaoka
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*
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*/
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#include <asm/processor.h>
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static void putc(char c);
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static int puts(const char *s)
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{
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char c;
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while ((c = *s++)) putc(c);
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return 0;
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}
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#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
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#include <asm/m32r.h>
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#include <asm/io.h>
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#define USE_FPGA_MAP 0
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#if USE_FPGA_MAP
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/*
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* fpga configuration program uses MMU, and define map as same as
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* M32104 uT-Engine board.
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*/
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#define BOOT_SIO0STS (volatile unsigned short *)(0x02c00000 + 0x20006)
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#define BOOT_SIO0TXB (volatile unsigned short *)(0x02c00000 + 0x2000c)
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#else
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#undef PLD_BASE
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#if defined(CONFIG_PLAT_OPSPUT)
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#define PLD_BASE 0x1cc00000
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#else
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#define PLD_BASE 0xa4c00000
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#endif
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#define BOOT_SIO0STS PLD_ESIO0STS
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#define BOOT_SIO0TXB PLD_ESIO0TXB
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#endif
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static void putc(char c)
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{
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while ((*BOOT_SIO0STS & 0x3) != 0x3)
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cpu_relax();
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if (c == '\n') {
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*BOOT_SIO0TXB = '\r';
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while ((*BOOT_SIO0STS & 0x3) != 0x3)
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cpu_relax();
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}
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*BOOT_SIO0TXB = c;
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}
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#else /* !(CONFIG_PLAT_M32700UT_Alpha) && !(CONFIG_PLAT_M32700UT) */
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#if defined(CONFIG_PLAT_MAPPI2)
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#define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14)
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#define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30)
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#else
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#define SIO0STS (volatile unsigned short *)(0x00efd000 + 14)
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#define SIO0TXB (volatile unsigned short *)(0x00efd000 + 30)
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#endif
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static void putc(char c)
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{
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while ((*SIO0STS & 0x1) == 0)
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cpu_relax();
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if (c == '\n') {
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*SIO0TXB = '\r';
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while ((*SIO0STS & 0x1) == 0)
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cpu_relax();
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}
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*SIO0TXB = c;
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}
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#endif
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