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Diffstat (limited to 'arch/powerpc/sysdev/qe_lib/ucc_slow.c')
-rw-r--r--arch/powerpc/sysdev/qe_lib/ucc_slow.c79
1 files changed, 43 insertions, 36 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index 1f65c26ce63..befaf1123f7 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.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>
@@ -13,12 +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>
@@ -41,6 +41,7 @@ u32 ucc_slow_get_qe_cr_subblock(int uccs_num)
default: return QE_CR_SUBBLOCK_INVALID;
}
}
+EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
void ucc_slow_poll_transmitter_now(struct ucc_slow_private * uccs)
{
@@ -56,6 +57,7 @@ void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs)
qe_issue_cmd(QE_GRACEFUL_STOP_TX, id,
QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_graceful_stop_tx);
void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
{
@@ -65,6 +67,7 @@ void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_stop_tx);
void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
{
@@ -74,6 +77,7 @@ void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_restart_tx);
void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
{
@@ -94,6 +98,7 @@ void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
}
out_be32(&us_regs->gumr_l, gumr_l);
}
+EXPORT_SYMBOL(ucc_slow_enable);
void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
{
@@ -114,12 +119,17 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
}
out_be32(&us_regs->gumr_l, gumr_l);
}
+EXPORT_SYMBOL(ucc_slow_disable);
+/* Initialize the UCC for Slow operations
+ *
+ * The caller should initialize the following us_info
+ */
int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** uccs_ret)
{
struct ucc_slow_private *uccs;
u32 i;
- struct ucc_slow *us_regs;
+ struct ucc_slow __iomem *us_regs;
u32 gumr;
struct qe_bd *bd;
u32 id;
@@ -131,7 +141,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
/* check if the UCC port number is in range. */
if ((us_info->ucc_num < 0) || (us_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;
}
@@ -143,13 +153,14 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
*/
if ((!us_info->rfw) &&
(us_info->max_rx_buf_length & (UCC_SLOW_MRBLR_ALIGNMENT - 1))) {
- printk(KERN_ERR "max_rx_buf_length not aligned.");
+ printk(KERN_ERR "max_rx_buf_length not aligned.\n");
return -EINVAL;
}
uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
if (!uccs) {
- printk(KERN_ERR "%s: Cannot allocate private data", __FUNCTION__);
+ printk(KERN_ERR "%s: Cannot allocate private data\n",
+ __func__);
return -ENOMEM;
}
@@ -158,7 +169,8 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
/* Set the PHY base address */
uccs->us_regs = ioremap(us_info->regs, sizeof(struct ucc_slow));
if (uccs->us_regs == NULL) {
- printk(KERN_ERR "%s: Cannot map UCC registers", __FUNCTION__);
+ printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
+ kfree(uccs);
return -ENOMEM;
}
@@ -177,28 +189,20 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
uccs->us_pram_offset =
qe_muram_alloc(UCC_SLOW_PRAM_SIZE, ALIGNMENT_OF_UCC_SLOW_PRAM);
if (IS_ERR_VALUE(uccs->us_pram_offset)) {
- printk(KERN_ERR "%s: cannot allocate MURAM for PRAM", __FUNCTION__);
+ printk(KERN_ERR "%s: cannot allocate MURAM for PRAM", __func__);
ucc_slow_free(uccs);
return -ENOMEM;
}
id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
- qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, QE_CR_PROTOCOL_UNSPECIFIED,
+ qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, us_info->protocol,
uccs->us_pram_offset);
uccs->us_pram = qe_muram_addr(uccs->us_pram_offset);
- /* Init Guemr register */
- if ((ret = ucc_init_guemr((struct ucc_common *) us_regs))) {
- printk(KERN_ERR "%s: cannot init GUEMR", __FUNCTION__);
- ucc_slow_free(uccs);
- return ret;
- }
-
/* Set UCC to slow type */
- if ((ret = ucc_set_type(us_info->ucc_num,
- (struct ucc_common *) us_regs,
- UCC_SPEED_TYPE_SLOW))) {
- printk(KERN_ERR "%s: cannot set UCC type", __FUNCTION__);
+ ret = ucc_set_type(us_info->ucc_num, UCC_SPEED_TYPE_SLOW);
+ if (ret) {
+ printk(KERN_ERR "%s: cannot set UCC type", __func__);
ucc_slow_free(uccs);
return ret;
}
@@ -212,7 +216,8 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
qe_muram_alloc(us_info->rx_bd_ring_len * sizeof(struct qe_bd),
QE_ALIGNMENT_OF_BD);
if (IS_ERR_VALUE(uccs->rx_base_offset)) {
- printk(KERN_ERR "%s: cannot allocate RX BDs", __FUNCTION__);
+ printk(KERN_ERR "%s: cannot allocate %u RX BDs\n", __func__,
+ us_info->rx_bd_ring_len);
uccs->rx_base_offset = 0;
ucc_slow_free(uccs);
return -ENOMEM;
@@ -222,7 +227,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
qe_muram_alloc(us_info->tx_bd_ring_len * sizeof(struct qe_bd),
QE_ALIGNMENT_OF_BD);
if (IS_ERR_VALUE(uccs->tx_base_offset)) {
- printk(KERN_ERR "%s: cannot allocate TX BDs", __FUNCTION__);
+ printk(KERN_ERR "%s: cannot allocate TX BDs", __func__);
uccs->tx_base_offset = 0;
ucc_slow_free(uccs);
return -ENOMEM;
@@ -292,12 +297,12 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
/* if the data is in cachable memory, the 'global' */
/* in the function code should be set. */
- uccs->us_pram->tfcr = uccs->us_pram->rfcr =
- us_info->data_mem_part | QE_BMR_BYTE_ORDER_BO_MOT;
+ uccs->us_pram->tbmr = UCC_BMR_BO_BE;
+ uccs->us_pram->rbmr = UCC_BMR_BO_BE;
/* rbase, tbase are offsets from MURAM base */
- out_be16(&uccs->us_pram->rbase, uccs->us_pram_offset);
- out_be16(&uccs->us_pram->tbase, uccs->us_pram_offset);
+ out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset);
+ out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset);
/* Mux clocking */
/* Grant Support */
@@ -311,16 +316,16 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
/* Rx clock routing */
if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_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_slow_free(uccs);
return -EINVAL;
}
/* Tx clock routing */
if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_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_slow_free(uccs);
return -EINVAL;
}
@@ -343,12 +348,13 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
command = QE_INIT_TX;
else
command = QE_INIT_RX; /* We know at least one is TRUE */
- id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
- qe_issue_cmd(command, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
+
+ qe_issue_cmd(command, id, us_info->protocol, 0);
*uccs_ret = uccs;
return 0;
}
+EXPORT_SYMBOL(ucc_slow_init);
void ucc_slow_free(struct ucc_slow_private * uccs)
{
@@ -361,12 +367,13 @@ void ucc_slow_free(struct ucc_slow_private * uccs)
if (uccs->tx_base_offset)
qe_muram_free(uccs->tx_base_offset);
- if (uccs->us_pram) {
+ if (uccs->us_pram)
qe_muram_free(uccs->us_pram_offset);
- uccs->us_pram = NULL;
- }
+
+ if (uccs->us_regs)
+ iounmap(uccs->us_regs);
kfree(uccs);
}
-
+EXPORT_SYMBOL(ucc_slow_free);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-10 15:42:44 +0000