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Diffstat (limited to 'arch/powerpc/sysdev/qe_lib/ucc_fast.c')
-rw-r--r--arch/powerpc/sysdev/qe_lib/ucc_fast.c163
1 files changed, 85 insertions, 78 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
index 66137bf2dfb..65aaf15032a 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
*
* Authors: Shlomi Gridish <gridish@freescale.com>
* Li Yang <leoli@freescale.com>
@@ -13,11 +13,12 @@
* option) any later version.
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/export.h>
#include <asm/io.h>
#include <asm/immap_qe.h>
@@ -28,47 +29,47 @@
void ucc_fast_dump_regs(struct ucc_fast_private * uccf)
{
- printk(KERN_INFO "UCC%d Fast registers:", uccf->uf_info->ucc_num);
- printk(KERN_INFO "Base address: 0x%08x", (u32) uccf->uf_regs);
-
- printk(KERN_INFO "gumr : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr));
- printk(KERN_INFO "upsmr : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr));
- printk(KERN_INFO "utodr : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr));
- printk(KERN_INFO "udsr : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr));
- printk(KERN_INFO "ucce : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce));
- printk(KERN_INFO "uccm : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm));
- printk(KERN_INFO "uccs : addr - 0x%08x, val - 0x%02x",
- (u32) & uccf->uf_regs->uccs, uccf->uf_regs->uccs);
- printk(KERN_INFO "urfb : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb));
- printk(KERN_INFO "urfs : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs));
- printk(KERN_INFO "urfet : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet));
- printk(KERN_INFO "urfset: addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->urfset,
- in_be16(&uccf->uf_regs->urfset));
- printk(KERN_INFO "utfb : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb));
- printk(KERN_INFO "utfs : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs));
- printk(KERN_INFO "utfet : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet));
- printk(KERN_INFO "utftt : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt));
- printk(KERN_INFO "utpt : addr - 0x%08x, val - 0x%04x",
- (u32) & uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt));
- printk(KERN_INFO "urtry : addr - 0x%08x, val - 0x%08x",
- (u32) & uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry));
- printk(KERN_INFO "guemr : addr - 0x%08x, val - 0x%02x",
- (u32) & uccf->uf_regs->guemr, uccf->uf_regs->guemr);
+ printk(KERN_INFO "UCC%u Fast registers:\n", uccf->uf_info->ucc_num);
+ printk(KERN_INFO "Base address: 0x%p\n", uccf->uf_regs);
+
+ printk(KERN_INFO "gumr : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr));
+ printk(KERN_INFO "upsmr : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr));
+ printk(KERN_INFO "utodr : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr));
+ printk(KERN_INFO "udsr : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr));
+ printk(KERN_INFO "ucce : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce));
+ printk(KERN_INFO "uccm : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm));
+ printk(KERN_INFO "uccs : addr=0x%p, val=0x%02x\n",
+ &uccf->uf_regs->uccs, in_8(&uccf->uf_regs->uccs));
+ printk(KERN_INFO "urfb : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb));
+ printk(KERN_INFO "urfs : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs));
+ printk(KERN_INFO "urfet : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet));
+ printk(KERN_INFO "urfset: addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->urfset, in_be16(&uccf->uf_regs->urfset));
+ printk(KERN_INFO "utfb : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb));
+ printk(KERN_INFO "utfs : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs));
+ printk(KERN_INFO "utfet : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet));
+ printk(KERN_INFO "utftt : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt));
+ printk(KERN_INFO "utpt : addr=0x%p, val=0x%04x\n",
+ &uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt));
+ printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n",
+ &uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry));
+ printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n",
+ &uccf->uf_regs->guemr, in_8(&uccf->uf_regs->guemr));
}
+EXPORT_SYMBOL(ucc_fast_dump_regs);
u32 ucc_fast_get_qe_cr_subblock(int uccf_num)
{
@@ -84,15 +85,17 @@ u32 ucc_fast_get_qe_cr_subblock(int uccf_num)
default: return QE_CR_SUBBLOCK_INVALID;
}
}
+EXPORT_SYMBOL(ucc_fast_get_qe_cr_subblock);
void ucc_fast_transmit_on_demand(struct ucc_fast_private * uccf)
{
out_be16(&uccf->uf_regs->utodr, UCC_FAST_TOD);
}
+EXPORT_SYMBOL(ucc_fast_transmit_on_demand);
void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode)
{
- struct ucc_fast *uf_regs;
+ struct ucc_fast __iomem *uf_regs;
u32 gumr;
uf_regs = uccf->uf_regs;
@@ -109,10 +112,11 @@ void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode)
}
out_be32(&uf_regs->gumr, gumr);
}
+EXPORT_SYMBOL(ucc_fast_enable);
void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode)
{
- struct ucc_fast *uf_regs;
+ struct ucc_fast __iomem *uf_regs;
u32 gumr;
uf_regs = uccf->uf_regs;
@@ -129,11 +133,12 @@ void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode)
}
out_be32(&uf_regs->gumr, gumr);
}
+EXPORT_SYMBOL(ucc_fast_disable);
int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** uccf_ret)
{
struct ucc_fast_private *uccf;
- struct ucc_fast *uf_regs;
+ struct ucc_fast __iomem *uf_regs;
u32 gumr;
int ret;
@@ -142,55 +147,57 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
/* check if the UCC port number is in range. */
if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) {
- printk(KERN_ERR "%s: illegal UCC number", __FUNCTION__);
+ printk(KERN_ERR "%s: illegal UCC number\n", __func__);
return -EINVAL;
}
/* Check that 'max_rx_buf_length' is properly aligned (4). */
if (uf_info->max_rx_buf_length & (UCC_FAST_MRBLR_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: max_rx_buf_length not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: max_rx_buf_length not aligned\n",
+ __func__);
return -EINVAL;
}
/* Validate Virtual Fifo register values */
if (uf_info->urfs < UCC_FAST_URFS_MIN_VAL) {
- printk(KERN_ERR "%s: urfs is too small", __FUNCTION__);
+ printk(KERN_ERR "%s: urfs is too small\n", __func__);
return -EINVAL;
}
if (uf_info->urfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: urfs is not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: urfs is not aligned\n", __func__);
return -EINVAL;
}
if (uf_info->urfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: urfet is not aligned.", __FUNCTION__);
+ printk(KERN_ERR "%s: urfet is not aligned.\n", __func__);
return -EINVAL;
}
if (uf_info->urfset & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: urfset is not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: urfset is not aligned\n", __func__);
return -EINVAL;
}
if (uf_info->utfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: utfs is not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: utfs is not aligned\n", __func__);
return -EINVAL;
}
if (uf_info->utfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: utfet is not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: utfet is not aligned\n", __func__);
return -EINVAL;
}
if (uf_info->utftt & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
- printk(KERN_ERR "%s: utftt is not aligned", __FUNCTION__);
+ printk(KERN_ERR "%s: utftt is not aligned\n", __func__);
return -EINVAL;
}
uccf = kzalloc(sizeof(struct ucc_fast_private), GFP_KERNEL);
if (!uccf) {
- printk(KERN_ERR "%s: Cannot allocate private data", __FUNCTION__);
+ printk(KERN_ERR "%s: Cannot allocate private data\n",
+ __func__);
return -ENOMEM;
}
@@ -199,7 +206,8 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
/* Set the PHY base address */
uccf->uf_regs = ioremap(uf_info->regs, sizeof(struct ucc_fast));
if (uccf->uf_regs == NULL) {
- printk(KERN_ERR "%s: Cannot map UCC registers", __FUNCTION__);
+ printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
+ kfree(uccf);
return -ENOMEM;
}
@@ -208,10 +216,10 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
uccf->stopped_tx = 0;
uccf->stopped_rx = 0;
uf_regs = uccf->uf_regs;
- uccf->p_ucce = (u32 *) & (uf_regs->ucce);
- uccf->p_uccm = (u32 *) & (uf_regs->uccm);
+ uccf->p_ucce = &uf_regs->ucce;
+ uccf->p_uccm = &uf_regs->uccm;
#ifdef CONFIG_UGETH_TX_ON_DEMAND
- uccf->p_utodr = (u16 *) & (uf_regs->utodr);
+ uccf->p_utodr = &uf_regs->utodr;
#endif
#ifdef STATISTICS
uccf->tx_frames = 0;
@@ -219,18 +227,10 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
uccf->rx_discarded = 0;
#endif /* STATISTICS */
- /* Init Guemr register */
- if ((ret = ucc_init_guemr((struct ucc_common *) (uf_regs)))) {
- printk(KERN_ERR "%s: cannot init GUEMR", __FUNCTION__);
- ucc_fast_free(uccf);
- return ret;
- }
-
/* Set UCC to fast type */
- if ((ret = ucc_set_type(uf_info->ucc_num,
- (struct ucc_common *) (uf_regs),
- UCC_SPEED_TYPE_FAST))) {
- printk(KERN_ERR "%s: cannot set UCC type", __FUNCTION__);
+ ret = ucc_set_type(uf_info->ucc_num, UCC_SPEED_TYPE_FAST);
+ if (ret) {
+ printk(KERN_ERR "%s: cannot set UCC type\n", __func__);
ucc_fast_free(uccf);
return ret;
}
@@ -268,8 +268,9 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
/* Allocate memory for Tx Virtual Fifo */
uccf->ucc_fast_tx_virtual_fifo_base_offset =
qe_muram_alloc(uf_info->utfs, UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
- if (IS_MURAM_ERR(uccf->ucc_fast_tx_virtual_fifo_base_offset)) {
- printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO", __FUNCTION__);
+ if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) {
+ printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO\n",
+ __func__);
uccf->ucc_fast_tx_virtual_fifo_base_offset = 0;
ucc_fast_free(uccf);
return -ENOMEM;
@@ -280,8 +281,9 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
qe_muram_alloc(uf_info->urfs +
UCC_FAST_RECEIVE_VIRTUAL_FIFO_SIZE_FUDGE_FACTOR,
UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
- if (IS_MURAM_ERR(uccf->ucc_fast_rx_virtual_fifo_base_offset)) {
- printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO", __FUNCTION__);
+ if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) {
+ printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO\n",
+ __func__);
uccf->ucc_fast_rx_virtual_fifo_base_offset = 0;
ucc_fast_free(uccf);
return -ENOMEM;
@@ -311,8 +313,8 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
if ((uf_info->rx_clock != QE_CLK_NONE) &&
ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->rx_clock,
COMM_DIR_RX)) {
- printk(KERN_ERR "%s: illegal value for RX clock",
- __FUNCTION__);
+ printk(KERN_ERR "%s: illegal value for RX clock\n",
+ __func__);
ucc_fast_free(uccf);
return -EINVAL;
}
@@ -320,8 +322,8 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
if ((uf_info->tx_clock != QE_CLK_NONE) &&
ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->tx_clock,
COMM_DIR_TX)) {
- printk(KERN_ERR "%s: illegal value for TX clock",
- __FUNCTION__);
+ printk(KERN_ERR "%s: illegal value for TX clock\n",
+ __func__);
ucc_fast_free(uccf);
return -EINVAL;
}
@@ -340,6 +342,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
*uccf_ret = uccf;
return 0;
}
+EXPORT_SYMBOL(ucc_fast_init);
void ucc_fast_free(struct ucc_fast_private * uccf)
{
@@ -352,5 +355,9 @@ void ucc_fast_free(struct ucc_fast_private * uccf)
if (uccf->ucc_fast_rx_virtual_fifo_base_offset)
qe_muram_free(uccf->ucc_fast_rx_virtual_fifo_base_offset);
+ if (uccf->uf_regs)
+ iounmap(uccf->uf_regs);
+
kfree(uccf);
}
+EXPORT_SYMBOL(ucc_fast_free);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-11 11:06:00 +0000