summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/boot/cpm-serial.c34
-rw-r--r--arch/powerpc/boot/devtree.c20
-rw-r--r--arch/powerpc/boot/mpc52xx-psc.c9
-rw-r--r--arch/powerpc/boot/ns16550.c10
-rw-r--r--arch/powerpc/boot/ops.h1
5 files changed, 31 insertions, 43 deletions
diff --git a/arch/powerpc/boot/cpm-serial.c b/arch/powerpc/boot/cpm-serial.c
index 28296fa..1f6225a 100644
--- a/arch/powerpc/boot/cpm-serial.c
+++ b/arch/powerpc/boot/cpm-serial.c
@@ -177,7 +177,6 @@ int cpm_console_init(void *devp, struct serial_console_data *scdp)
{
void *reg_virt[2];
int is_smc = 0, is_cpm2 = 0, n;
- unsigned long reg_phys;
void *parent, *muram;
if (dt_is_compatible(devp, "fsl,cpm1-smc-uart")) {
@@ -206,15 +205,8 @@ int cpm_console_init(void *devp, struct serial_console_data *scdp)
if (n < 4)
return -1;
- n = getprop(devp, "virtual-reg", reg_virt, sizeof(reg_virt));
- if (n < (int)sizeof(reg_virt)) {
- for (n = 0; n < 2; n++) {
- if (!dt_xlate_reg(devp, n, &reg_phys, NULL))
- return -1;
-
- reg_virt[n] = (void *)reg_phys;
- }
- }
+ if (dt_get_virtual_reg(devp, reg_virt, 2) < 2)
+ return -1;
if (is_smc)
smc = reg_virt[0];
@@ -227,15 +219,8 @@ int cpm_console_init(void *devp, struct serial_console_data *scdp)
if (!parent)
return -1;
- n = getprop(parent, "virtual-reg", reg_virt, sizeof(reg_virt));
- if (n < (int)sizeof(reg_virt)) {
- if (!dt_xlate_reg(parent, 0, &reg_phys, NULL))
- return -1;
-
- reg_virt[0] = (void *)reg_phys;
- }
-
- cpcr = reg_virt[0];
+ if (dt_get_virtual_reg(parent, &cpcr, 1) < 1)
+ return -1;
muram = finddevice("/soc/cpm/muram/data");
if (!muram)
@@ -246,15 +231,8 @@ int cpm_console_init(void *devp, struct serial_console_data *scdp)
* is one for both parent and child.
*/
- n = getprop(muram, "virtual-reg", reg_virt, sizeof(reg_virt));
- if (n < (int)sizeof(reg_virt)) {
- if (!dt_xlate_reg(muram, 0, &reg_phys, NULL))
- return -1;
-
- reg_virt[0] = (void *)reg_phys;
- }
-
- muram_start = reg_virt[0];
+ if (dt_get_virtual_reg(muram, (void **)&muram_start, 1) < 1)
+ return -1;
n = getprop(muram, "reg", &muram_offset, 4);
if (n < 4)
diff --git a/arch/powerpc/boot/devtree.c b/arch/powerpc/boot/devtree.c
index 60f561e..5d12336 100644
--- a/arch/powerpc/boot/devtree.c
+++ b/arch/powerpc/boot/devtree.c
@@ -350,3 +350,23 @@ int dt_is_compatible(void *node, const char *compat)
return 0;
}
+
+int dt_get_virtual_reg(void *node, void **addr, int nres)
+{
+ unsigned long xaddr;
+ int n;
+
+ n = getprop(node, "virtual-reg", addr, nres * 4);
+ if (n > 0)
+ return n / 4;
+
+ for (n = 0; n < nres; n++) {
+ if (!dt_xlate_reg(node, n, &xaddr, NULL))
+ break;
+
+ addr[n] = (void *)xaddr;
+ }
+
+ return n;
+}
+
diff --git a/arch/powerpc/boot/mpc52xx-psc.c b/arch/powerpc/boot/mpc52xx-psc.c
index 1074626..d4cb4e4 100644
--- a/arch/powerpc/boot/mpc52xx-psc.c
+++ b/arch/powerpc/boot/mpc52xx-psc.c
@@ -51,14 +51,9 @@ static unsigned char psc_getc(void)
int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp)
{
- int n;
-
/* Get the base address of the psc registers */
- n = getprop(devp, "virtual-reg", &psc, sizeof(psc));
- if (n != sizeof(psc)) {
- if (!dt_xlate_reg(devp, 0, (void *)&psc, NULL))
- return -1;
- }
+ if (dt_get_virtual_reg(devp, &psc, 1) < 1)
+ return -1;
scdp->open = psc_open;
scdp->putc = psc_putc;
diff --git a/arch/powerpc/boot/ns16550.c b/arch/powerpc/boot/ns16550.c
index f8f1b2f..aef3bdc 100644
--- a/arch/powerpc/boot/ns16550.c
+++ b/arch/powerpc/boot/ns16550.c
@@ -55,15 +55,9 @@ static u8 ns16550_tstc(void)
int ns16550_console_init(void *devp, struct serial_console_data *scdp)
{
int n;
- unsigned long reg_phys;
- n = getprop(devp, "virtual-reg", &reg_base, sizeof(reg_base));
- if (n != sizeof(reg_base)) {
- if (!dt_xlate_reg(devp, 0, &reg_phys, NULL))
- return -1;
-
- reg_base = (void *)reg_phys;
- }
+ if (dt_get_virtual_reg(devp, (void **)&reg_base, 1) < 1)
+ return -1;
n = getprop(devp, "reg-shift", &reg_shift, sizeof(reg_shift));
if (n != sizeof(reg_shift))
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h
index 4b0544b..321e2f5 100644
--- a/arch/powerpc/boot/ops.h
+++ b/arch/powerpc/boot/ops.h
@@ -95,6 +95,7 @@ int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
int dt_is_compatible(void *node, const char *compat);
void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize);
+int dt_get_virtual_reg(void *node, void **addr, int nres);
static inline void *finddevice(const char *name)
{
OpenPOWER on IntegriCloud