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Diffstat (limited to 'arch/powerpc/sysdev/fsl_rio.c')
-rw-r--r--arch/powerpc/sysdev/fsl_rio.c100
1 files changed, 34 insertions, 66 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 07c164f7f8cf..f9b214b299e7 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -23,16 +23,17 @@
#include <linux/types.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
-#include <linux/device.h>
+#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/uaccess.h>
#include <asm/machdep.h>
+#include <asm/rio.h>
#include "fsl_rio.h"
@@ -69,10 +70,10 @@
static DEFINE_SPINLOCK(fsl_rio_config_lock);
-#define __fsl_read_rio_config(x, addr, err, op) \
+#define ___fsl_read_rio_config(x, addr, err, op, barrier) \
__asm__ __volatile__( \
"1: "op" %1,0(%2)\n" \
- " eieio\n" \
+ " "barrier"\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: li %1,-1\n" \
@@ -83,6 +84,14 @@ static DEFINE_SPINLOCK(fsl_rio_config_lock);
: "=r" (err), "=r" (x) \
: "b" (addr), "i" (-EFAULT), "0" (err))
+#ifdef CONFIG_BOOKE
+#define __fsl_read_rio_config(x, addr, err, op) \
+ ___fsl_read_rio_config(x, addr, err, op, "mbar")
+#else
+#define __fsl_read_rio_config(x, addr, err, op) \
+ ___fsl_read_rio_config(x, addr, err, op, "eieio")
+#endif
+
void __iomem *rio_regs_win;
void __iomem *rmu_regs_win;
resource_size_t rio_law_start;
@@ -90,7 +99,7 @@ resource_size_t rio_law_start;
struct fsl_rio_dbell *dbell;
struct fsl_rio_pw *pw;
-#ifdef CONFIG_E500
+#ifdef CONFIG_PPC_E500
int fsl_rio_mcheck_exception(struct pt_regs *regs)
{
const struct exception_table_entry *entry;
@@ -108,8 +117,8 @@ int fsl_rio_mcheck_exception(struct pt_regs *regs)
__func__);
out_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR),
0);
- regs->msr |= MSR_RI;
- regs->nip = extable_fixup(entry);
+ regs_set_recoverable(regs);
+ regs_set_return_ip(regs, extable_fixup(entry));
return 1;
}
}
@@ -295,8 +304,8 @@ static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
out_be32(&priv->inb_atmu_regs[i].riwar, 0);
}
-int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
- u64 rstart, u64 size, u32 flags)
+static int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
+ u64 rstart, u64 size, u32 flags)
{
struct rio_priv *priv = mport->priv;
u32 base_size;
@@ -346,7 +355,7 @@ int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
return 0;
}
-void fsl_unmap_inb_mem(struct rio_mport *mport, dma_addr_t lstart)
+static void fsl_unmap_inb_mem(struct rio_mport *mport, dma_addr_t lstart)
{
u32 win_start_shift, base_start_shift;
struct rio_priv *priv = mport->priv;
@@ -434,20 +443,17 @@ static inline void fsl_rio_info(struct device *dev, u32 ccsr)
* master port with system-specific info, and registers the
* master port with the RapidIO subsystem.
*/
-int fsl_rio_setup(struct platform_device *dev)
+static int fsl_rio_setup(struct platform_device *dev)
{
struct rio_ops *ops;
struct rio_mport *port;
struct rio_priv *priv;
int rc = 0;
- const u32 *dt_range, *cell, *port_index;
+ const u32 *port_index;
u32 active_ports = 0;
- struct resource regs, rmu_regs;
struct device_node *np, *rmu_node;
- int rlen;
u32 ccsr;
- u64 range_start, range_size;
- int paw, aw, sw;
+ u64 range_start;
u32 i;
static int tmp;
struct device_node *rmu_np[MAX_MSG_UNIT_NUM] = {NULL};
@@ -457,17 +463,7 @@ int fsl_rio_setup(struct platform_device *dev)
return -ENODEV;
}
- rc = of_address_to_resource(dev->dev.of_node, 0, &regs);
- if (rc) {
- dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
- dev->dev.of_node);
- return -EFAULT;
- }
- dev_info(&dev->dev, "Of-device full name %pOF\n",
- dev->dev.of_node);
- dev_info(&dev->dev, "Regs: %pR\n", &regs);
-
- rio_regs_win = ioremap(regs.start, resource_size(&regs));
+ rio_regs_win = of_iomap(dev->dev.of_node, 0);
if (!rio_regs_win) {
dev_err(&dev->dev, "Unable to map rio register window\n");
rc = -ENOMEM;
@@ -501,13 +497,9 @@ int fsl_rio_setup(struct platform_device *dev)
rc = -ENOENT;
goto err_rmu;
}
- rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
- if (rc) {
- dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
- rmu_node);
- goto err_rmu;
- }
- rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
+ rmu_regs_win = of_iomap(rmu_node, 0);
+
+ of_node_put(rmu_node);
if (!rmu_regs_win) {
dev_err(&dev->dev, "Unable to map rmu register window\n");
rc = -ENOMEM;
@@ -535,15 +527,12 @@ int fsl_rio_setup(struct platform_device *dev)
dbell->bellirq = irq_of_parse_and_map(np, 1);
dev_info(&dev->dev, "bellirq: %d\n", dbell->bellirq);
- aw = of_n_addr_cells(np);
- dt_range = of_get_property(np, "reg", &rlen);
- if (!dt_range) {
+ if (of_property_read_reg(np, 0, &range_start, NULL)) {
pr_err("%pOF: unable to find 'reg' property\n",
np);
rc = -ENOMEM;
goto err_pw;
}
- range_start = of_read_number(dt_range, aw);
dbell->dbell_regs = (struct rio_dbell_regs *)(rmu_regs_win +
(u32)range_start);
@@ -563,19 +552,18 @@ int fsl_rio_setup(struct platform_device *dev)
pw->dev = &dev->dev;
pw->pwirq = irq_of_parse_and_map(np, 0);
dev_info(&dev->dev, "pwirq: %d\n", pw->pwirq);
- aw = of_n_addr_cells(np);
- dt_range = of_get_property(np, "reg", &rlen);
- if (!dt_range) {
+ if (of_property_read_reg(np, 0, &range_start, NULL)) {
pr_err("%pOF: unable to find 'reg' property\n",
np);
rc = -ENOMEM;
goto err;
}
- range_start = of_read_number(dt_range, aw);
pw->pw_regs = (struct rio_pw_regs *)(rmu_regs_win + (u32)range_start);
/*set up ports node*/
for_each_child_of_node(dev->dev.of_node, np) {
+ struct resource res;
+
port_index = of_get_property(np, "cell-index", NULL);
if (!port_index) {
dev_err(&dev->dev, "Can't get %pOF property 'cell-index'\n",
@@ -583,32 +571,14 @@ int fsl_rio_setup(struct platform_device *dev)
continue;
}
- dt_range = of_get_property(np, "ranges", &rlen);
- if (!dt_range) {
+ if (of_range_to_resource(np, 0, &res)) {
dev_err(&dev->dev, "Can't get %pOF property 'ranges'\n",
np);
continue;
}
- /* Get node address wide */
- cell = of_get_property(np, "#address-cells", NULL);
- if (cell)
- aw = *cell;
- else
- aw = of_n_addr_cells(np);
- /* Get node size wide */
- cell = of_get_property(np, "#size-cells", NULL);
- if (cell)
- sw = *cell;
- else
- sw = of_n_size_cells(np);
- /* Get parent address wide wide */
- paw = of_n_addr_cells(np);
- range_start = of_read_number(dt_range + aw, paw);
- range_size = of_read_number(dt_range + aw + paw, sw);
-
- dev_info(&dev->dev, "%pOF: LAW start 0x%016llx, size 0x%016llx.\n",
- np, range_start, range_size);
+ dev_info(&dev->dev, "%pOF: LAW %pR\n",
+ np, &res);
port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
if (!port)
@@ -631,9 +601,7 @@ int fsl_rio_setup(struct platform_device *dev)
}
INIT_LIST_HEAD(&port->dbells);
- port->iores.start = range_start;
- port->iores.end = port->iores.start + range_size - 1;
- port->iores.flags = IORESOURCE_MEM;
+ port->iores = res; /* struct copy */
port->iores.name = "rio_io_win";
if (request_resource(&iomem_resource, &port->iores) < 0) {
generated by cgit (git 2.34.1) at 2024-05-09 04:57:18 +0000