1 files changed, 0 insertions, 432 deletions
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
deleted file mode 100644
index 752443df5ec..00000000000
--- a/arch/ppc/8xx_io/commproc.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- * General Purpose functions for the global management of the
- * Communication Processor Module.
- * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
- *
- * In addition to the individual control of the communication
- * channels, there are a few functions that globally affect the
- * communication processor.
- *
- * Buffer descriptors must be allocated from the dual ported memory
- * space.  The allocator for that is here.  When the communication
- * process is reset, we reclaim the memory available.  There is
- * currently no deallocator for this memory.
- * The amount of space available is platform dependent.  On the
- * MBX, the EPPC software loads additional microcode into the
- * communication processor, and uses some of the DP ram for this
- * purpose.  Current, the first 512 bytes and the last 256 bytes of
- * memory are used.  Right now I am conservative and only use the
- * memory that can never be used for microcode.  If there are
- * applications that require more DP ram, we can expand the boundaries
- * but then we have to be careful of any downloaded microcode.
- */
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <asm/mpc8xx.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/8xx_immap.h>
-#include <asm/cpm1.h>
-#include <asm/io.h>
-#include <asm/tlbflush.h>
-#include <asm/rheap.h>
-
-#define immr_map(member)						\
-({									\
-	u32 offset = offsetof(immap_t, member);				\
-	void *addr = ioremap (IMAP_ADDR + offset,			\
-			      FIELD_SIZEOF(immap_t, member));		\
-	addr;								\
-})
-
-#define immr_map_size(member, size)					\
-({									\
-	u32 offset = offsetof(immap_t, member);				\
-	void *addr = ioremap (IMAP_ADDR + offset, size);		\
-	addr;								\
-})
-
-static void m8xx_cpm_dpinit(void);
-cpm8xx_t	*cpmp;		/* Pointer to comm processor space */
-
-/* CPM interrupt vector functions.
-*/
-struct	cpm_action {
-	void	(*handler)(void *);
-	void	*dev_id;
-};
-static	struct	cpm_action cpm_vecs[CPMVEC_NR];
-static	irqreturn_t cpm_interrupt(int irq, void * dev);
-static	irqreturn_t cpm_error_interrupt(int irq, void *dev);
-/* Define a table of names to identify CPM interrupt handlers in
- * /proc/interrupts.
- */
-const char *cpm_int_name[] =
-	{ "error",	"PC4",		"PC5",		"SMC2",
-	  "SMC1",	"SPI",		"PC6",		"Timer 4",
-	  "",		"PC7",		"PC8",		"PC9",
-	  "Timer 3",	"",		"PC10",		"PC11",
-	  "I2C",	"RISC Timer",	"Timer 2",	"",
-	  "IDMA2",	"IDMA1",	"SDMA error",	"PC12",
-	  "PC13",	"Timer 1",	"PC14",		"SCC4",
-	  "SCC3",	"SCC2",		"SCC1",		"PC15"
-	};
-
-static void
-cpm_mask_irq(unsigned int irq)
-{
-	int cpm_vec = irq - CPM_IRQ_OFFSET;
-
-	clrbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, (1 << cpm_vec));
-}
-
-static void
-cpm_unmask_irq(unsigned int irq)
-{
-	int cpm_vec = irq - CPM_IRQ_OFFSET;
-
-	setbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, (1 << cpm_vec));
-}
-
-static void
-cpm_ack(unsigned int irq)
-{
-	/* We do not need to do anything here. */
-}
-
-static void
-cpm_eoi(unsigned int irq)
-{
-	int cpm_vec = irq - CPM_IRQ_OFFSET;
-
-	out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr, (1 << cpm_vec));
-}
-
-struct hw_interrupt_type cpm_pic = {
-	.typename	= " CPM      ",
-	.enable		= cpm_unmask_irq,
-	.disable	= cpm_mask_irq,
-	.ack		= cpm_ack,
-	.end		= cpm_eoi,
-};
-
-void
-m8xx_cpm_reset(void)
-{
-	volatile immap_t	 *imp;
-	volatile cpm8xx_t	*commproc;
-
-	imp = (immap_t *)IMAP_ADDR;
-	commproc = (cpm8xx_t *)&imp->im_cpm;
-
-#ifdef CONFIG_UCODE_PATCH
-	/* Perform a reset.
-	*/
-	commproc->cp_cpcr = (CPM_CR_RST | CPM_CR_FLG);
-
-	/* Wait for it.
-	*/
-	while (commproc->cp_cpcr & CPM_CR_FLG);
-
-	cpm_load_patch(imp);
-#endif
-
-	/* Set SDMA Bus Request priority 5.
-	 * On 860T, this also enables FEC priority 6.  I am not sure
-	 * this is what we really want for some applications, but the
-	 * manual recommends it.
-	 * Bit 25, FAM can also be set to use FEC aggressive mode (860T).
-	 */
-	out_be32(&imp->im_siu_conf.sc_sdcr, 1),
-
-	/* Reclaim the DP memory for our use. */
-	m8xx_cpm_dpinit();
-
-	/* Tell everyone where the comm processor resides.
-	*/
-	cpmp = (cpm8xx_t *)commproc;
-}
-
-/* This is called during init_IRQ.  We used to do it above, but this
- * was too early since init_IRQ was not yet called.
- */
-static struct irqaction cpm_error_irqaction = {
-	.handler = cpm_error_interrupt,
-	.mask = CPU_MASK_NONE,
-};
-static struct irqaction cpm_interrupt_irqaction = {
-	.handler = cpm_interrupt,
-	.mask = CPU_MASK_NONE,
-	.name = "CPM cascade",
-};
-
-void
-cpm_interrupt_init(void)
-{
-	int i;
-
-	/* Initialize the CPM interrupt controller.
-	*/
-	out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr,
-	    (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) |
-		((CPM_INTERRUPT/2) << 13) | CICR_HP_MASK);
-	out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, 0);
-
-        /* install the CPM interrupt controller routines for the CPM
-         * interrupt vectors
-         */
-        for ( i = CPM_IRQ_OFFSET ; i < CPM_IRQ_OFFSET + NR_CPM_INTS ; i++ )
-                irq_desc[i].chip = &cpm_pic;
-
-	/* Set our interrupt handler with the core CPU.	*/
-	if (setup_irq(CPM_INTERRUPT, &cpm_interrupt_irqaction))
-		panic("Could not allocate CPM IRQ!");
-
-	/* Install our own error handler. */
-	cpm_error_irqaction.name = cpm_int_name[CPMVEC_ERROR];
-	if (setup_irq(CPM_IRQ_OFFSET + CPMVEC_ERROR, &cpm_error_irqaction))
-		panic("Could not allocate CPM error IRQ!");
-
-	setbits32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr, CICR_IEN);
-}
-
-/*
- * Get the CPM interrupt vector.
- */
-int
-cpm_get_irq(void)
-{
-	int cpm_vec;
-
-	/* Get the vector by setting the ACK bit and then reading
-	 * the register.
-	 */
-	out_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr, 1);
-	cpm_vec = in_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr);
-	cpm_vec >>= 11;
-
-	return cpm_vec;
-}
-
-/* CPM interrupt controller cascade interrupt.
-*/
-static	irqreturn_t
-cpm_interrupt(int irq, void * dev)
-{
-	/* This interrupt handler never actually gets called.  It is
-	 * installed only to unmask the CPM cascade interrupt in the SIU
-	 * and to make the CPM cascade interrupt visible in /proc/interrupts.
-	 */
-	return IRQ_HANDLED;
-}
-
-/* The CPM can generate the error interrupt when there is a race condition
- * between generating and masking interrupts.  All we have to do is ACK it
- * and return.  This is a no-op function so we don't need any special
- * tests in the interrupt handler.
- */
-static	irqreturn_t
-cpm_error_interrupt(int irq, void *dev)
-{
-	return IRQ_HANDLED;
-}
-
-/* A helper function to translate the handler prototype required by
- * request_irq() to the handler prototype required by cpm_install_handler().
- */
-static irqreturn_t
-cpm_handler_helper(int irq, void *dev_id)
-{
-	int cpm_vec = irq - CPM_IRQ_OFFSET;
-
-	(*cpm_vecs[cpm_vec].handler)(dev_id);
-
-	return IRQ_HANDLED;
-}
-
-/* Install a CPM interrupt handler.
- * This routine accepts a CPM interrupt vector in the range 0 to 31.
- * This routine is retained for backward compatibility.  Rather than using
- * this routine to install a CPM interrupt handler, you can now use
- * request_irq() with an IRQ in the range CPM_IRQ_OFFSET to
- * CPM_IRQ_OFFSET + NR_CPM_INTS - 1 (16 to 47).
- *
- * Notice that the prototype of the interrupt handler function must be
- * different depending on whether you install the handler with
- * request_irq() or cpm_install_handler().
- */
-void
-cpm_install_handler(int cpm_vec, void (*handler)(void *), void *dev_id)
-{
-	int err;
-
-	/* If null handler, assume we are trying to free the IRQ.
-	*/
-	if (!handler) {
-		free_irq(CPM_IRQ_OFFSET + cpm_vec, dev_id);
-		return;
-	}
-
-	if (cpm_vecs[cpm_vec].handler != 0)
-		printk(KERN_INFO "CPM interrupt %x replacing %x\n",
-			(uint)handler, (uint)cpm_vecs[cpm_vec].handler);
-	cpm_vecs[cpm_vec].handler = handler;
-	cpm_vecs[cpm_vec].dev_id = dev_id;
-
-	if ((err = request_irq(CPM_IRQ_OFFSET + cpm_vec, cpm_handler_helper,
-					0, cpm_int_name[cpm_vec], dev_id)))
-		printk(KERN_ERR "request_irq() returned %d for CPM vector %d\n",
-				err, cpm_vec);
-}
-
-/* Free a CPM interrupt handler.
- * This routine accepts a CPM interrupt vector in the range 0 to 31.
- * This routine is retained for backward compatibility.
- */
-void
-cpm_free_handler(int cpm_vec)
-{
-	request_irq(CPM_IRQ_OFFSET + cpm_vec, NULL, 0, 0,
-		cpm_vecs[cpm_vec].dev_id);
-
-	cpm_vecs[cpm_vec].handler = NULL;
-	cpm_vecs[cpm_vec].dev_id = NULL;
-}
-
-/* Set a baud rate generator.  This needs lots of work.  There are
- * four BRGs, any of which can be wired to any channel.
- * The internal baud rate clock is the system clock divided by 16.
- * This assumes the baudrate is 16x oversampled by the uart.
- */
-#define BRG_INT_CLK		(((bd_t *)__res)->bi_intfreq)
-#define BRG_UART_CLK		(BRG_INT_CLK/16)
-#define BRG_UART_CLK_DIV16	(BRG_UART_CLK/16)
-
-void
-cpm_setbrg(uint brg, uint rate)
-{
-	volatile uint	*bp;
-
-	/* This is good enough to get SMCs running.....
-	*/
-	bp = (uint *)&cpmp->cp_brgc1;
-	bp += brg;
-	/* The BRG has a 12-bit counter.  For really slow baud rates (or
-	 * really fast processors), we may have to further divide by 16.
-	 */
-	if (((BRG_UART_CLK / rate) - 1) < 4096)
-		*bp = (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN;
-	else
-		*bp = (((BRG_UART_CLK_DIV16 / rate) - 1) << 1) |
-						CPM_BRG_EN | CPM_BRG_DIV16;
-}
-
-/*
- * dpalloc / dpfree bits.
- */
-static spinlock_t cpm_dpmem_lock;
-/*
- * 16 blocks should be enough to satisfy all requests
- * until the memory subsystem goes up...
- */
-static rh_block_t cpm_boot_dpmem_rh_block[16];
-static rh_info_t cpm_dpmem_info;
-
-#define CPM_DPMEM_ALIGNMENT	8
-static u8* dpram_vbase;
-static uint dpram_pbase;
-
-void m8xx_cpm_dpinit(void)
-{
-	spin_lock_init(&cpm_dpmem_lock);
-
-	dpram_vbase = immr_map_size(im_cpm.cp_dpmem, CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE);
-	dpram_pbase = (uint)&((immap_t *)IMAP_ADDR)->im_cpm.cp_dpmem;
-
-	/* Initialize the info header */
-	rh_init(&cpm_dpmem_info, CPM_DPMEM_ALIGNMENT,
-			sizeof(cpm_boot_dpmem_rh_block) /
-			sizeof(cpm_boot_dpmem_rh_block[0]),
-			cpm_boot_dpmem_rh_block);
-
-	/*
-	 * Attach the usable dpmem area.
-	 * XXX: This is actually crap.  CPM_DATAONLY_BASE and
-	 * CPM_DATAONLY_SIZE are a subset of the available dparm.  It varies
-	 * with the processor and the microcode patches applied / activated.
-	 * But the following should be at least safe.
-	 */
-	rh_attach_region(&cpm_dpmem_info, CPM_DATAONLY_BASE, CPM_DATAONLY_SIZE);
-}
-
-/*
- * Allocate the requested size worth of DP memory.
- * This function returns an offset into the DPRAM area.
- * Use cpm_dpram_addr() to get the virtual address of the area.
- */
-unsigned long cpm_dpalloc(uint size, uint align)
-{
-	unsigned long start;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cpm_dpmem_lock, flags);
-	cpm_dpmem_info.alignment = align;
-	start = rh_alloc(&cpm_dpmem_info, size, "commproc");
-	spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
-	return start;
-}
-EXPORT_SYMBOL(cpm_dpalloc);
-
-int cpm_dpfree(unsigned long offset)
-{
-	int ret;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cpm_dpmem_lock, flags);
-	ret = rh_free(&cpm_dpmem_info, offset);
-	spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
-	return ret;
-}
-EXPORT_SYMBOL(cpm_dpfree);
-
-unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align)
-{
-	unsigned long start;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cpm_dpmem_lock, flags);
-	cpm_dpmem_info.alignment = align;
-	start = rh_alloc_fixed(&cpm_dpmem_info, offset, size, "commproc");
-	spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
-	return start;
-}
-EXPORT_SYMBOL(cpm_dpalloc_fixed);
-
-void cpm_dpdump(void)
-{
-	rh_dump(&cpm_dpmem_info);
-}
-EXPORT_SYMBOL(cpm_dpdump);
-
-void *cpm_dpram_addr(unsigned long offset)
-{
-	return (void *)(dpram_vbase + offset);
-}
-EXPORT_SYMBOL(cpm_dpram_addr);
-
-uint cpm_dpram_phys(u8* addr)
-{
-	return (dpram_pbase + (uint)(addr - dpram_vbase));
-}
-EXPORT_SYMBOL(cpm_dpram_phys);