sh: Kill off the remaining ST40 cruft.

The ST40 stuff in-tree hasn't built for some time, and hasn't been
updated for over 3 years. ST maintains their own out-of-tree changes
and rebases occasionally, and that's ultimately where all of the ST40
users go anyways.

In order for the ST40 code to be brought up to date most of the stuff
removed in this changeset would have to be rewritten anyways, so there's
very little benefit in keeping the remnants around either.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 0 insertions, 488 deletions

diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
deleted file mode 100644
index 0814a5afe9b..00000000000
--- a/arch/sh/drivers/pci/pci-st40.c
+++ /dev/null
@@ -1,488 +0,0 @@
-/* 
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.                            
- *
- * Support functions for the ST40 PCI hardware.
- */
-
-#include <linux/kernel.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <asm/pci.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>	/* irqreturn_t */
-
-#include "pci-st40.h"
-
-/* This is in P2 of course */
-#define ST40PCI_BASE_ADDRESS     (0xb0000000)
-#define ST40PCI_MEM_ADDRESS      (ST40PCI_BASE_ADDRESS+0x0)
-#define ST40PCI_IO_ADDRESS       (ST40PCI_BASE_ADDRESS+0x06000000)
-#define ST40PCI_REG_ADDRESS      (ST40PCI_BASE_ADDRESS+0x07000000)
-
-#define ST40PCI_REG(x) (ST40PCI_REG_ADDRESS+(ST40PCI_##x))
-#define ST40PCI_REG_INDEXED(reg, index) 				\
-	(ST40PCI_REG(reg##0) +					\
-	  ((ST40PCI_REG(reg##1) - ST40PCI_REG(reg##0))*index))
-
-#define ST40PCI_WRITE(reg,val) writel((val),ST40PCI_REG(reg))
-#define ST40PCI_WRITE_SHORT(reg,val) writew((val),ST40PCI_REG(reg))
-#define ST40PCI_WRITE_BYTE(reg,val) writeb((val),ST40PCI_REG(reg))
-#define ST40PCI_WRITE_INDEXED(reg, index, val)				\
-	 writel((val), ST40PCI_REG_INDEXED(reg, index));
-
-#define ST40PCI_READ(reg) readl(ST40PCI_REG(reg))
-#define ST40PCI_READ_SHORT(reg) readw(ST40PCI_REG(reg))
-#define ST40PCI_READ_BYTE(reg) readb(ST40PCI_REG(reg))
-
-#define ST40PCI_SERR_IRQ	64
-#define ST40PCI_ERR_IRQ        	65
-
-
-/* Macros to extract PLL params */
-#define PLL_MDIV(reg)  ( ((unsigned)reg) & 0xff )
-#define PLL_NDIV(reg) ( (((unsigned)reg)>>8) & 0xff )
-#define PLL_PDIV(reg) ( (((unsigned)reg)>>16) & 0x3 )
-#define PLL_SETUP(reg) ( (((unsigned)reg)>>19) & 0x1ff )
-
-/* Build up the appropriate settings */
-#define PLL_SET(mdiv,ndiv,pdiv,setup) \
-( ((mdiv)&0xff) | (((ndiv)&0xff)<<8) | (((pdiv)&3)<<16)| (((setup)&0x1ff)<<19))
-
-#define PLLPCICR (0xbb040000+0x10)
-
-#define PLLPCICR_POWERON (1<<28)
-#define PLLPCICR_OUT_EN (1<<29)
-#define PLLPCICR_LOCKSELECT (1<<30)
-#define PLLPCICR_LOCK (1<<31)
-
-
-#define PLL_25MHZ 0x793c8512
-#define PLL_33MHZ PLL_SET(18,88,3,295)
-
-static void pci_set_rbar_region(unsigned int region,     unsigned long localAddr,
-			 unsigned long pciOffset, unsigned long regionSize);
-
-static __init void SetPCIPLL(void)
-{
-	{
-		/* Lets play with the PLL values */
-		unsigned long pll1cr1;
-		unsigned long mdiv, ndiv, pdiv;
-		unsigned long muxcr;
-		unsigned int muxcr_ratios[4] = { 8, 16, 21, 1 };
-		unsigned int freq;
-
-#define CLKGENA            0xbb040000
-#define CLKGENA_PLL2_MUXCR CLKGENA + 0x48
-		pll1cr1 = ctrl_inl(PLLPCICR);
-		printk("PLL1CR1 %08lx\n", pll1cr1);
-		mdiv = PLL_MDIV(pll1cr1);
-		ndiv = PLL_NDIV(pll1cr1);
-		pdiv = PLL_PDIV(pll1cr1);
-		printk("mdiv %02lx ndiv %02lx pdiv %02lx\n", mdiv, ndiv, pdiv);
-		freq = ((2*27*ndiv)/mdiv) / (1 << pdiv);
-		printk("PLL freq %dMHz\n", freq);
-		muxcr = ctrl_inl(CLKGENA_PLL2_MUXCR);
-		printk("PCI freq %dMhz\n", freq / muxcr_ratios[muxcr & 3]);
-	}
-}
-
-
-struct pci_err {
-  unsigned mask;
-  const char *error_string;
-};
-
-static struct pci_err int_error[]={
-  { INT_MNLTDIM,"MNLTDIM: Master non-lock transfer"},
-  { INT_TTADI,  "TTADI: Illegal byte enable in I/O transfer"},
-  { INT_TMTO,   "TMTO: Target memory read/write timeout"},
-  { INT_MDEI,   "MDEI: Master function disable error"},
-  { INT_APEDI,  "APEDI: Address parity error"},
-  { INT_SDI,    "SDI: SERR detected"},
-  { INT_DPEITW, "DPEITW: Data parity error target write"},
-  { INT_PEDITR, "PEDITR: PERR detected"},
-  { INT_TADIM,  "TADIM: Target abort detected"},
-  { INT_MADIM,  "MADIM: Master abort detected"},
-  { INT_MWPDI,  "MWPDI: PERR from target at data write"},
-  { INT_MRDPEI, "MRDPEI: Master read data parity error"}
-};
-#define NUM_PCI_INT_ERRS ARRAY_SIZE(int_error)
-
-static struct pci_err aint_error[]={
-  { AINT_MBI,   "MBI: Master broken"},
-  { AINT_TBTOI, "TBTOI: Target bus timeout"},
-  { AINT_MBTOI, "MBTOI: Master bus timeout"},
-  { AINT_TAI,   "TAI: Target abort"},
-  { AINT_MAI,   "MAI: Master abort"},
-  { AINT_RDPEI, "RDPEI: Read data parity"},
-  { AINT_WDPE,  "WDPE: Write data parity"}
-};
-
-#define NUM_PCI_AINT_ERRS ARRAY_SIZE(aint_error)
-
-static void print_pci_errors(unsigned reg,struct pci_err *error,int num_errors)
-{
-  int i;
-
-  for(i=0;i<num_errors;i++) {
-    if(reg & error[i].mask) {
-      printk("%s\n",error[i].error_string);
-    }
-  }
-
-}
-
-
-static char * pci_commands[16]={
-	"Int Ack",
-	"Special Cycle",
-	"I/O Read",
-	"I/O Write",
-	"Reserved",
-	"Reserved",
-	"Memory Read",
-	"Memory Write",
-	"Reserved",
-	"Reserved",
-	"Configuration Read",
-	"Configuration Write",
-	"Memory Read Multiple",
-	"Dual Address Cycle",
-	"Memory Read Line",
-	"Memory Write-and-Invalidate"
-};
-
-static irqreturn_t st40_pci_irq(int irq, void *dev_instance)
-{
-	unsigned pci_int, pci_air, pci_cir, pci_aint;
-	static int count=0;
-
-
-	pci_int = ST40PCI_READ(INT);pci_aint = ST40PCI_READ(AINT);
-	pci_cir = ST40PCI_READ(CIR);pci_air = ST40PCI_READ(AIR);
-
-	/* Reset state to stop multiple interrupts */
-        ST40PCI_WRITE(INT, ~0); ST40PCI_WRITE(AINT, ~0);
-
-
-	if(++count>1) return IRQ_HANDLED;
-
-	printk("** PCI ERROR **\n");
-
-        if(pci_int) {
-		printk("** INT register status\n");
-		print_pci_errors(pci_int,int_error,NUM_PCI_INT_ERRS);
-	}
-
-        if(pci_aint) {
-		printk("** AINT register status\n");
-		print_pci_errors(pci_aint,aint_error,NUM_PCI_AINT_ERRS);
-	}
-
-	printk("** Address and command info\n");
-
-	printk("** Command  %s : Address 0x%x\n",
-	       pci_commands[pci_cir&0xf],pci_air);
-
-	if(pci_cir&CIR_PIOTEM) {
-		printk("CIR_PIOTEM:PIO transfer error for master\n");
-	}
-        if(pci_cir&CIR_RWTET) {
-		printk("CIR_RWTET:Read/Write transfer error for target\n");
-	}
-
-	return IRQ_HANDLED;
-}
-
-
-/* Rounds a number UP to the nearest power of two. Used for
- * sizing the PCI window.
- */
-static u32 r2p2(u32 num)
-{
-	int i = 31;
-	u32 tmp = num;
-
-	if (num == 0)
-		return 0;
-
-	do {
-		if (tmp & (1 << 31))
-			break;
-		i--;
-		tmp <<= 1;
-	} while (i >= 0);
-
-	tmp = 1 << i;
-	/* If the original number isn't a power of 2, round it up */
-	if (tmp != num)
-		tmp <<= 1;
-
-	return tmp;
-}
-
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
-	int i;
-
-	/*
-	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
-	 */
-	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
-		return;
-	printk("PCI: IDE base address fixup for %s\n", pci_name(d));
-	for(i=0; i<4; i++) {
-		struct resource *r = &d->resource[i];
-		if ((r->start & ~0x80) == 0x374) {
-			r->start |= 2;
-			r->end = r->start;
-		}
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-int __init st40pci_init(unsigned memStart, unsigned memSize)
-{
-	u32 lsr0;
-
-	SetPCIPLL();
-
-	/* Initialises the ST40 pci subsystem, performing a reset, then programming
-	 * up the address space decoders appropriately
-	 */
-
-	/* Should reset core here as well methink */
-
-	ST40PCI_WRITE(CR, CR_LOCK_MASK | CR_SOFT_RESET);
-
-	/* Loop while core resets */
-	while (ST40PCI_READ(CR) & CR_SOFT_RESET);
-
-	/* Switch off interrupts */
-	ST40PCI_WRITE(INTM, 0);
-	ST40PCI_WRITE(AINT, 0);
-
-	/* Now, lets reset all the cards on the bus with extreme prejudice */
-	ST40PCI_WRITE(CR, CR_LOCK_MASK | CR_RSTCTL);
-	udelay(250);
-
-	/* Set bus active, take it out of reset */
-	ST40PCI_WRITE(CR, CR_LOCK_MASK | CR_BMAM | CR_CFINT | CR_PFCS | CR_PFE);
-
-	/* The PCI spec says that no access must be made to the bus until 1 second
-	 * after reset. This seem ludicrously long, but some delay is needed here
-	 */
-	mdelay(1000);
-
-	/* Switch off interrupts */
-	ST40PCI_WRITE(INTM, 0);
-	ST40PCI_WRITE(AINT, 0);
-
-	/* Allow it to be a master */
-
-	ST40PCI_WRITE_SHORT(CSR_CMD,
-			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
-			    PCI_COMMAND_IO);
-
-	/* Access to the 0xb0000000 -> 0xb6000000 area will go through to 0x10000000 -> 0x16000000
-	 * on the PCI bus. This allows a nice 1-1 bus to phys mapping.
-	 */
-
-
-	ST40PCI_WRITE(MBR, 0x10000000);
-	/* Always set the max size 128M (actually, it is only 96MB wide) */
-	ST40PCI_WRITE(MBMR, 0x07ff0000);
-
-	/* I/O addresses are mapped at 0xb6000000 -> 0xb7000000. These are changed to 0, to 
-	 * allow cards that have legacy io such as vga to function correctly. This gives a 
-	 * maximum of 64K of io/space as only the bottom 16 bits of the address are copied 
-	 * over to the bus  when the transaction is made. 64K of io space is more than enough
-	 */
-	ST40PCI_WRITE(IOBR, 0x0);
-	/* Set up the 64K window */
-	ST40PCI_WRITE(IOBMR, 0x0);
-
-	/* Now we set up the mbars so the PCI bus can see the local memory */
-	/* Expose a 256M window starting at PCI address 0... */
-	ST40PCI_WRITE(CSR_MBAR0, 0);
-	ST40PCI_WRITE(LSR0, 0x0fff0001);
-
-	/* ... and set up the initial incoming window to expose all of RAM */
-	pci_set_rbar_region(7, memStart, memStart, memSize);
-
-	/* Maximise timeout values */
-	ST40PCI_WRITE_BYTE(CSR_TRDY, 0xff);
-	ST40PCI_WRITE_BYTE(CSR_RETRY, 0xff);
-	ST40PCI_WRITE_BYTE(CSR_MIT, 0xff);
-
-	ST40PCI_WRITE_BYTE(PERF,PERF_MASTER_WRITE_POSTING);
-
-	return 1;
-}
-
-char * __devinit pcibios_setup(char *str)
-{
-	return str;
-}
-
-
-#define SET_CONFIG_BITS(bus,devfn,where)\
-  (((bus) << 16) | ((devfn) << 8) | ((where) & ~3) | (bus!=0))
-
-#define CONFIG_CMD(bus, devfn, where) SET_CONFIG_BITS(bus->number,devfn,where)
-
-
-static int CheckForMasterAbort(void)
-{
-	if (ST40PCI_READ(INT) & INT_MADIM) {
-		/* Should we clear config space version as well ??? */
-		ST40PCI_WRITE(INT, INT_MADIM);
-		ST40PCI_WRITE_SHORT(CSR_STATUS, 0);
-		return 1;
-	}
-
-	return 0;
-}
-
-/* Write to config register */
-static int st40pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val)
-{
-	ST40PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-	switch (size) {
-		case 1:
-			*val = (u8)ST40PCI_READ_BYTE(PDR + (where & 3));
-			break;
-		case 2:
-			*val = (u16)ST40PCI_READ_SHORT(PDR + (where & 2));
-			break;
-		case 4:
-			*val = ST40PCI_READ(PDR);
-			break;
-	}
-
-	if (CheckForMasterAbort()){
-		switch (size) {
-			case 1:
-				*val = (u8)0xff;
-				break;
-			case 2:
-				*val = (u16)0xffff;
-				break;
-			case 4:
-				*val = 0xffffffff;
-				break;
-		}
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int st40pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
-{
-	ST40PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
-	switch (size) {
-		case 1:
-			ST40PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
-			break;
-		case 2:
-			ST40PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
-			break;
-		case 4:
-			ST40PCI_WRITE(PDR, val);
-			break;
-	}
-
-	CheckForMasterAbort();
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops st40pci_config_ops = {
-	.read = 	st40pci_read,
-	.write = 	st40pci_write,
-};
-
-
-/* Everything hangs off this */
-static struct pci_bus *pci_root_bus;
-
-static int __init pcibios_init(void)
-{
-	extern unsigned long memory_start, memory_end;
-
-	printk(KERN_ALERT "pci-st40.c: pcibios_init\n");
-
-	if (sh_mv.mv_init_pci != NULL) {
-		sh_mv.mv_init_pci();
-	}
-
-	/* The pci subsytem needs to know where memory is and how much 
-	 * of it there is. I've simply made these globals. A better mechanism
-	 * is probably needed.
-	 */
-	st40pci_init(PHYSADDR(memory_start),
-		     PHYSADDR(memory_end) - PHYSADDR(memory_start));
-
-	if (request_irq(ST40PCI_ERR_IRQ, st40_pci_irq, 
-                        IRQF_DISABLED, "st40pci", NULL)) {
-		printk(KERN_ERR "st40pci: Cannot hook interrupt\n");
-		return -EIO;
-	}
-
-	/* Enable the PCI interrupts on the device */
-	ST40PCI_WRITE(INTM, ~0);
-	ST40PCI_WRITE(AINT, ~0);
-
-	/* Map the io address apprioately */
-#ifdef CONFIG_HD64465
-	hd64465_port_map(PCIBIOS_MIN_IO, (64 * 1024) - PCIBIOS_MIN_IO + 1,
-			 ST40_IO_ADDR + PCIBIOS_MIN_IO, 0);
-#endif
-
-	/* ok, do the scan man */
-	pci_root_bus = pci_scan_bus(0, &st40pci_config_ops, NULL);
-	pci_assign_unassigned_resources();
-
-	return 0;
-}
-subsys_initcall(pcibios_init);
-
-/*
- * Publish a region of local address space over the PCI bus
- * to other devices.
- */
-static void pci_set_rbar_region(unsigned int region,     unsigned long localAddr,
-			 unsigned long pciOffset, unsigned long regionSize)
-{
-	unsigned long mask;
-
-	if (region > 7)
-		return;
-
-	if (regionSize > (512 * 1024 * 1024))
-		return;
-
-	mask = r2p2(regionSize) - 0x10000;
-
-	/* Disable the region (in case currently in use, should never happen) */
-	ST40PCI_WRITE_INDEXED(RSR, region, 0);
-
-	/* Start of local address space to publish */
-	ST40PCI_WRITE_INDEXED(RLAR, region, PHYSADDR(localAddr) );
-
-	/* Start of region in PCI address space as an offset from MBAR0 */
-	ST40PCI_WRITE_INDEXED(RBAR, region, pciOffset);
-
-	/* Size of region */
-	ST40PCI_WRITE_INDEXED(RSR, region, mask | 1);
-}
-