1 files changed, 3 insertions, 24 deletions

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a17553f7c028..ac04335ef444 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -157,7 +157,6 @@ enum pl330_reqtype {
 #define PERIPH_REV_R0P0         0
 #define PERIPH_REV_R1P0         1
 #define PERIPH_REV_R1P1         2
-#define PCELL_ID                0xff0
 
 #define CR0_PERIPH_REQ_SET      (1 << 0)
 #define CR0_BOOT_EN_SET         (1 << 1)
@@ -193,8 +192,6 @@ enum pl330_reqtype {
 #define INTEG_CFG               0x0
 #define PERIPH_ID_VAL           ((PART << 0) | (DESIGNER << 12))
 
-#define PCELL_ID_VAL            0xb105f00d
-
 #define PL330_STATE_STOPPED             (1 << 0)
 #define PL330_STATE_EXECUTING           (1 << 1)
 #define PL330_STATE_WFE                 (1 << 2)
@@ -292,7 +289,6 @@ static unsigned cmd_line;
 /* Populated by the PL330 core driver for DMA API driver's info */
 struct pl330_config {
         u32     periph_id;
-        u32     pcell_id;
 #define DMAC_MODE_NS    (1 << 0)
         unsigned int    mode;
         unsigned int    data_bus_width:10; /* In number of bits */
@@ -650,19 +646,6 @@ static inline bool _manager_ns(struct pl330_thread *thrd)
         return (pl330->pinfo->pcfg.mode & DMAC_MODE_NS) ? true : false;
 }
 
-static inline u32 get_id(struct pl330_info *pi, u32 off)
-{
-        void __iomem *regs = pi->base;
-        u32 id = 0;
-
-        id |= (readb(regs + off + 0x0) << 0);
-        id |= (readb(regs + off + 0x4) << 8);
-        id |= (readb(regs + off + 0x8) << 16);
-        id |= (readb(regs + off + 0xc) << 24);
-
-        return id;
-}
-
 static inline u32 get_revision(u32 periph_id)
 {
         return (periph_id >> PERIPH_REV_SHIFT) & PERIPH_REV_MASK;
@@ -1986,9 +1969,6 @@ static void read_dmac_config(struct pl330_info *pi)
         pi->pcfg.num_events = val;
 
         pi->pcfg.irq_ns = readl(regs + CR3);
-
-        pi->pcfg.periph_id = get_id(pi, PERIPH_ID);
-        pi->pcfg.pcell_id = get_id(pi, PCELL_ID);
 }
 
 static inline void _reset_thread(struct pl330_thread *thrd)
@@ -2098,10 +2078,8 @@ static int pl330_add(struct pl330_info *pi)
         regs = pi->base;
 
         /* Check if we can handle this DMAC */
-        if ((get_id(pi, PERIPH_ID) & 0xfffff) != PERIPH_ID_VAL
-           || get_id(pi, PCELL_ID) != PCELL_ID_VAL) {
-                dev_err(pi->dev, "PERIPH_ID 0x%x, PCELL_ID 0x%x !\n",
-                        get_id(pi, PERIPH_ID), get_id(pi, PCELL_ID));
+        if ((pi->pcfg.periph_id & 0xfffff) != PERIPH_ID_VAL) {
+                dev_err(pi->dev, "PERIPH_ID 0x%x !\n", pi->pcfg.periph_id);
                 return -EINVAL;
         }
 
@@ -2916,6 +2894,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
         if (ret)
                 return ret;
 
+        pi->pcfg.periph_id = adev->periphid;
         ret = pl330_add(pi);
         if (ret)
                 goto probe_err1;