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Date: Wed, 06 Dec 2006 22:31:51 +0900
From: Hirokazu Takata <takata@...ux-m32r.org>
To: Andrew Morton <akpm@...l.org>
Cc: linux-kernel@...r.kernel.org, takata@...ux-m32r.org,
inaoka@...ux-m32r.org
Subject: [PATCH 2.6.19] m32r: bootloader support for OPSPUT platform
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@...ux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@...ux-m32r.org>
---
arch/m32r/boot/compressed/m32r_sio.c | 7 +++-
arch/m32r/kernel/io_opsput.c | 71 +++++++++++++++++++++++++++++++++-
arch/m32r/kernel/setup_opsput.c | 17 +++-----
include/asm-m32r/ide.h | 3 +-
4 files changed, 84 insertions(+), 14 deletions(-)
diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c
index bce8af5..ee3c8be 100644
--- a/arch/m32r/boot/compressed/m32r_sio.c
+++ b/arch/m32r/boot/compressed/m32r_sio.c
@@ -2,6 +2,7 @@
* arch/m32r/boot/compressed/m32r_sio.c
*
* 2003-02-12: Takeo Takahashi
+ * 2006-11-30: OPSPUT support by Kazuhiro Inaoka
*
*/
@@ -16,7 +17,7 @@ static int puts(const char *s)
return 0;
}
-#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT)
+#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
#include <asm/m32r.h>
#include <asm/io.h>
@@ -31,7 +32,11 @@ static int puts(const char *s)
#define BOOT_SIO0TXB (volatile unsigned short *)(0x02c00000 + 0x2000c)
#else
#undef PLD_BASE
+#if defined(CONFIG_PLAT_OPSPUT)
+#define PLD_BASE 0x1cc00000
+#else
#define PLD_BASE 0xa4c00000
+#endif
#define BOOT_SIO0STS PLD_ESIO0STS
#define BOOT_SIO0TXB PLD_ESIO0TXB
#endif
diff --git a/arch/m32r/kernel/io_opsput.c b/arch/m32r/kernel/io_opsput.c
index da6c5f5..3cbb1f7 100644
--- a/arch/m32r/kernel/io_opsput.c
+++ b/arch/m32r/kernel/io_opsput.c
@@ -30,14 +30,34 @@ extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
-#define PORT2ADDR(port) _port2addr(port)
-#define PORT2ADDR_USB(port) _port2addr_usb(port)
+#define PORT2ADDR(port) _port2addr(port)
+#define PORT2ADDR_USB(port) _port2addr_usb(port)
static inline void *_port2addr(unsigned long port)
{
return (void *)(port | NONCACHE_OFFSET);
}
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+static inline void *__port2addr_ata(unsigned long port)
+{
+ static int dummy_reg;
+
+ switch (port) {
+ case 0x1f0: return (void *)(0x0c002000 | NONCACHE_OFFSET);
+ case 0x1f1: return (void *)(0x0c012800 | NONCACHE_OFFSET);
+ case 0x1f2: return (void *)(0x0c012002 | NONCACHE_OFFSET);
+ case 0x1f3: return (void *)(0x0c012802 | NONCACHE_OFFSET);
+ case 0x1f4: return (void *)(0x0c012004 | NONCACHE_OFFSET);
+ case 0x1f5: return (void *)(0x0c012804 | NONCACHE_OFFSET);
+ case 0x1f6: return (void *)(0x0c012006 | NONCACHE_OFFSET);
+ case 0x1f7: return (void *)(0x0c012806 | NONCACHE_OFFSET);
+ case 0x3f6: return (void *)(0x0c01200e | NONCACHE_OFFSET);
+ default: return (void *)&dummy_reg;
+ }
+}
+#endif
+
/*
* OPSPUT-LAN is located in the extended bus space
* from 0x10000000 to 0x13ffffff on physical address.
@@ -97,6 +117,12 @@ unsigned char _inb(unsigned long port)
{
if (port >= LAN_IOSTART && port < LAN_IOEND)
return _ne_inb(PORT2ADDR_NE(port));
+
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ return *(volatile unsigned char *)__port2addr_ata(port);
+ }
+#endif
#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
unsigned char b;
@@ -112,6 +138,11 @@ unsigned short _inw(unsigned long port)
{
if (port >= LAN_IOSTART && port < LAN_IOEND)
return _ne_inw(PORT2ADDR_NE(port));
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ return *(volatile unsigned short *)__port2addr_ata(port);
+ }
+#endif
#if defined(CONFIG_USB)
else if(port >= 0x340 && port < 0x3a0)
return *(volatile unsigned short *)PORT2ADDR_USB(port);
@@ -164,6 +195,11 @@ void _outb(unsigned char b, unsigned long port)
if (port >= LAN_IOSTART && port < LAN_IOEND)
_ne_outb(b, PORT2ADDR_NE(port));
else
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ *(volatile unsigned char *)__port2addr_ata(port) = b;
+ } else
+#endif
#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
@@ -177,6 +213,11 @@ void _outw(unsigned short w, unsigned long port)
if (port >= LAN_IOSTART && port < LAN_IOEND)
_ne_outw(w, PORT2ADDR_NE(port));
else
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ *(volatile unsigned short *)__port2addr_ata(port) = w;
+ } else
+#endif
#if defined(CONFIG_USB)
if(port >= 0x340 && port < 0x3a0)
*(volatile unsigned short *)PORT2ADDR_USB(port) = w;
@@ -222,6 +263,14 @@ void _insb(unsigned int port, void *addr, unsigned long count)
{
if (port >= LAN_IOSTART && port < LAN_IOEND)
_ne_insb(PORT2ADDR_NE(port), addr, count);
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ unsigned char *buf = addr;
+ unsigned char *portp = __port2addr_ata(port);
+ while (count--)
+ *buf++ = *(volatile unsigned char *)portp;
+ }
+#endif
#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
@@ -254,6 +303,12 @@ void _insw(unsigned int port, void *addr, unsigned long count)
pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
count, 1);
#endif
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ portp = __port2addr_ata(port);
+ while (count--)
+ *buf++ = *(volatile unsigned short *)portp;
+#endif
} else {
portp = PORT2ADDR(port);
while (count--)
@@ -280,6 +335,12 @@ void _outsb(unsigned int port, const void *addr, unsigned long count)
portp = PORT2ADDR_NE(port);
while (count--)
_ne_outb(*buf++, portp);
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ portp = __port2addr_ata(port);
+ while (count--)
+ *(volatile unsigned char *)portp = *buf++;
+#endif
#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
@@ -305,6 +366,12 @@ void _outsw(unsigned int port, const void *addr, unsigned long count)
portp = PORT2ADDR_NE(port);
while (count--)
*(volatile unsigned short *)portp = *buf++;
+#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+ } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+ portp = __port2addr_ata(port);
+ while (count--)
+ *(volatile unsigned short *)portp = *buf++;
+#endif
#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
diff --git a/arch/m32r/kernel/setup_opsput.c b/arch/m32r/kernel/setup_opsput.c
index 61d3b01..62d6b71 100644
--- a/arch/m32r/kernel/setup_opsput.c
+++ b/arch/m32r/kernel/setup_opsput.c
@@ -218,13 +218,13 @@ static void shutdown_opsput_lanpld_irq(unsigned int irq)
static struct hw_interrupt_type opsput_lanpld_irq_type =
{
- "OPSPUT-PLD-LAN-IRQ",
- startup_opsput_lanpld_irq,
- shutdown_opsput_lanpld_irq,
- enable_opsput_lanpld_irq,
- disable_opsput_lanpld_irq,
- mask_and_ack_opsput_lanpld,
- end_opsput_lanpld_irq
+ .typename = "OPSPUT-PLD-LAN-IRQ",
+ .startup = startup_opsput_lanpld_irq,
+ .shutdown = shutdown_opsput_lanpld_irq,
+ .enable = enable_opsput_lanpld_irq,
+ .disable = disable_opsput_lanpld_irq,
+ .ack = mask_and_ack_opsput_lanpld,
+ .end = end_opsput_lanpld_irq
};
/*
@@ -374,7 +374,6 @@ void __init init_IRQ(void)
disable_opsput_pld_irq(PLD_IRQ_SIO0_SND);
#endif /* CONFIG_SERIAL_M32R_PLDSIO */
-#if defined(CONFIG_M32R_CFC)
/* INT#1: CFC IREQ on PLD */
irq_desc[PLD_IRQ_CFIREQ].status = IRQ_DISABLED;
irq_desc[PLD_IRQ_CFIREQ].chip = &opsput_pld_irq_type;
@@ -398,8 +397,6 @@ void __init init_IRQ(void)
irq_desc[PLD_IRQ_CFC_EJECT].depth = 1; /* disable nested irq */
pld_icu_data[irq2pldirq(PLD_IRQ_CFC_EJECT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02; /* 'H' edge sense */
disable_opsput_pld_irq(PLD_IRQ_CFC_EJECT);
-#endif /* CONFIG_M32R_CFC */
-
/*
* INT0# is used for LAN, DIO
diff --git a/include/asm-m32r/ide.h b/include/asm-m32r/ide.h
index 219a0f7..c82ebe8 100644
--- a/include/asm-m32r/ide.h
+++ b/include/asm-m32r/ide.h
@@ -32,7 +32,8 @@
static __inline__ int ide_default_irq(unsigned long base)
{
switch (base) {
-#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_MAPPI2)
+#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_MAPPI2) \
+ || defined(CONFIG_PLAT_OPSPUT)
case 0x1f0: return PLD_IRQ_CFIREQ;
default:
return 0;
--
1.4.4.1
--
Hirokazu Takata <takata@...ux-m32r.org>
Linux/M32R Project: http://www.linux-m32r.org/
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