[POWERPC] cpm2: Infrastructure code cleanup.
Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr
is used rather than creating many temporary mappings.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2_common.c
index 3bf89b3..0330ca4 100644
--- a/arch/powerpc/sysdev/cpm2_common.c
+++ b/arch/powerpc/sysdev/cpm2_common.c
@@ -33,6 +33,8 @@
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
+#include <linux/of.h>
+
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mpc8260.h>
@@ -45,13 +47,12 @@
#include <sysdev/fsl_soc.h>
static void cpm2_dpinit(void);
-cpm_cpm2_t *cpmp; /* Pointer to comm processor space */
+cpm_cpm2_t __iomem *cpmp; /* Pointer to comm processor space */
/* We allocate this here because it is used almost exclusively for
* the communication processor devices.
*/
-cpm2_map_t *cpm2_immr;
-intctl_cpm2_t *cpm2_intctl;
+cpm2_map_t __iomem *cpm2_immr;
#define CPM_MAP_SIZE (0x40000) /* 256k - the PQ3 reserve this amount
of space for CPM as it is larger
@@ -60,8 +61,11 @@
void
cpm2_reset(void)
{
- cpm2_immr = (cpm2_map_t *)ioremap(CPM_MAP_ADDR, CPM_MAP_SIZE);
- cpm2_intctl = cpm2_map(im_intctl);
+#ifdef CONFIG_PPC_85xx
+ cpm2_immr = ioremap(CPM_MAP_ADDR, CPM_MAP_SIZE);
+#else
+ cpm2_immr = ioremap(get_immrbase(), CPM_MAP_SIZE);
+#endif
/* Reclaim the DP memory for our use.
*/
@@ -91,7 +95,7 @@
void
cpm_setbrg(uint brg, uint rate)
{
- volatile uint *bp;
+ u32 __iomem *bp;
/* This is good enough to get SMCs running.....
*/
@@ -113,7 +117,8 @@
void
cpm2_fastbrg(uint brg, uint rate, int div16)
{
- volatile uint *bp;
+ u32 __iomem *bp;
+ u32 val;
if (brg < 4) {
bp = cpm2_map_size(im_brgc1, 16);
@@ -123,10 +128,11 @@
brg -= 4;
}
bp += brg;
- *bp = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN;
+ val = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN;
if (div16)
- *bp |= CPM_BRG_DIV16;
+ val |= CPM_BRG_DIV16;
+ out_be32(bp, val);
cpm2_unmap(bp);
}
@@ -135,8 +141,8 @@
int ret = 0;
int shift;
int i, bits = 0;
- cpmux_t *im_cpmux;
- u32 *reg;
+ cpmux_t __iomem *im_cpmux;
+ u32 __iomem *reg;
u32 mask = 7;
u8 clk_map [24][3] = {
{CPM_CLK_FCC1, CPM_BRG5, 0},
@@ -228,13 +234,33 @@
* until the memory subsystem goes up... */
static rh_block_t cpm_boot_dpmem_rh_block[16];
static rh_info_t cpm_dpmem_info;
-static u8* im_dprambase;
+static u8 __iomem *im_dprambase;
static void cpm2_dpinit(void)
{
- spin_lock_init(&cpm_dpmem_lock);
+ struct resource r;
- im_dprambase = ioremap(CPM_MAP_ADDR, CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE);
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,cpm2");
+ if (!np)
+ panic("Cannot find CPM2 node");
+
+ if (of_address_to_resource(np, 1, &r))
+ panic("Cannot get CPM2 resource 1");
+
+ of_node_put(np);
+#else
+ r.start = CPM_MAP_ADDR;
+ r.end = r.start + CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE - 1;
+#endif
+
+ im_dprambase = ioremap(r.start, r.end - r.start + 1);
+ if (!im_dprambase)
+ panic("Cannot map DPRAM");
+
+ spin_lock_init(&cpm_dpmem_lock);
/* initialize the info header */
rh_init(&cpm_dpmem_info, 1,
@@ -248,7 +274,7 @@
* varies with the processor and the microcode patches activated.
* But the following should be at least safe.
*/
- rh_attach_region(&cpm_dpmem_info, CPM_DATAONLY_BASE, CPM_DATAONLY_SIZE);
+ rh_attach_region(&cpm_dpmem_info, 0, r.end - r.start + 1);
}
/* This function returns an index into the DPRAM area.
