[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup().

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

2 files changed, 99 insertions, 6 deletions

diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2_common.c
index 0330ca490928..c6dc0bf614b3 100644
--- a/arch/powerpc/sysdev/cpm2_common.c
+++ b/arch/powerpc/sysdev/cpm2_common.c
@@ -144,7 +144,8 @@ int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
         cpmux_t __iomem *im_cpmux;
         u32 __iomem *reg;
         u32 mask = 7;
-        u8 clk_map [24][3] = {
+
+        u8 clk_map[][3] = {
                 {CPM_CLK_FCC1, CPM_BRG5, 0},
                 {CPM_CLK_FCC1, CPM_BRG6, 1},
                 {CPM_CLK_FCC1, CPM_BRG7, 2},
@@ -168,8 +169,40 @@ int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
                 {CPM_CLK_FCC3, CPM_CLK13, 4},
                 {CPM_CLK_FCC3, CPM_CLK14, 5},
                 {CPM_CLK_FCC3, CPM_CLK15, 6},
-                {CPM_CLK_FCC3, CPM_CLK16, 7}
-                };
+                {CPM_CLK_FCC3, CPM_CLK16, 7},
+                {CPM_CLK_SCC1, CPM_BRG1, 0},
+                {CPM_CLK_SCC1, CPM_BRG2, 1},
+                {CPM_CLK_SCC1, CPM_BRG3, 2},
+                {CPM_CLK_SCC1, CPM_BRG4, 3},
+                {CPM_CLK_SCC1, CPM_CLK11, 4},
+                {CPM_CLK_SCC1, CPM_CLK12, 5},
+                {CPM_CLK_SCC1, CPM_CLK3, 6},
+                {CPM_CLK_SCC1, CPM_CLK4, 7},
+                {CPM_CLK_SCC2, CPM_BRG1, 0},
+                {CPM_CLK_SCC2, CPM_BRG2, 1},
+                {CPM_CLK_SCC2, CPM_BRG3, 2},
+                {CPM_CLK_SCC2, CPM_BRG4, 3},
+                {CPM_CLK_SCC2, CPM_CLK11, 4},
+                {CPM_CLK_SCC2, CPM_CLK12, 5},
+                {CPM_CLK_SCC2, CPM_CLK3, 6},
+                {CPM_CLK_SCC2, CPM_CLK4, 7},
+                {CPM_CLK_SCC3, CPM_BRG1, 0},
+                {CPM_CLK_SCC3, CPM_BRG2, 1},
+                {CPM_CLK_SCC3, CPM_BRG3, 2},
+                {CPM_CLK_SCC3, CPM_BRG4, 3},
+                {CPM_CLK_SCC3, CPM_CLK5, 4},
+                {CPM_CLK_SCC3, CPM_CLK6, 5},
+                {CPM_CLK_SCC3, CPM_CLK7, 6},
+                {CPM_CLK_SCC3, CPM_CLK8, 7},
+                {CPM_CLK_SCC4, CPM_BRG1, 0},
+                {CPM_CLK_SCC4, CPM_BRG2, 1},
+                {CPM_CLK_SCC4, CPM_BRG3, 2},
+                {CPM_CLK_SCC4, CPM_BRG4, 3},
+                {CPM_CLK_SCC4, CPM_CLK5, 4},
+                {CPM_CLK_SCC4, CPM_CLK6, 5},
+                {CPM_CLK_SCC4, CPM_CLK7, 6},
+                {CPM_CLK_SCC4, CPM_CLK8, 7},
+        };
 
         im_cpmux = cpm2_map(im_cpmux);
 
@@ -209,23 +242,80 @@ int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
         if (mode == CPM_CLK_RX)
                 shift += 3;
 
-        for (i=0; i<24; i++) {
+        for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
                 if (clk_map[i][0] == target && clk_map[i][1] == clock) {
                         bits = clk_map[i][2];
                         break;
                 }
         }
-        if (i == sizeof(clk_map)/3)
+        if (i == ARRAY_SIZE(clk_map))
             ret = -EINVAL;
 
         bits <<= shift;
         mask <<= shift;
+
         out_be32(reg, (in_be32(reg) & ~mask) | bits);
 
         cpm2_unmap(im_cpmux);
         return ret;
 }
 
+int cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
+{
+        int ret = 0;
+        int shift;
+        int i, bits = 0;
+        cpmux_t __iomem *im_cpmux;
+        u8 __iomem *reg;
+        u8 mask = 3;
+
+        u8 clk_map[][3] = {
+                {CPM_CLK_SMC1, CPM_BRG1, 0},
+                {CPM_CLK_SMC1, CPM_BRG7, 1},
+                {CPM_CLK_SMC1, CPM_CLK7, 2},
+                {CPM_CLK_SMC1, CPM_CLK9, 3},
+                {CPM_CLK_SMC2, CPM_BRG2, 0},
+                {CPM_CLK_SMC2, CPM_BRG8, 1},
+                {CPM_CLK_SMC2, CPM_CLK4, 2},
+                {CPM_CLK_SMC2, CPM_CLK15, 3},
+        };
+
+        im_cpmux = cpm2_map(im_cpmux);
+
+        switch (target) {
+        case CPM_CLK_SMC1:
+                reg = &im_cpmux->cmx_smr;
+                mask = 3;
+                shift = 4;
+                break;
+        case CPM_CLK_SMC2:
+                reg = &im_cpmux->cmx_smr;
+                mask = 3;
+                shift = 0;
+                break;
+        default:
+                printk(KERN_ERR "cpm2_smc_clock_setup: invalid clock target\n");
+                return -EINVAL;
+        }
+
+        for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
+                if (clk_map[i][0] == target && clk_map[i][1] == clock) {
+                        bits = clk_map[i][2];
+                        break;
+                }
+        }
+        if (i == ARRAY_SIZE(clk_map))
+            ret = -EINVAL;
+
+        bits <<= shift;
+        mask <<= shift;
+
+        out_8(reg, (in_8(reg) & ~mask) | bits);
+
+        cpm2_unmap(im_cpmux);
+        return ret;
+}
+
 /*
  * dpalloc / dpfree bits.
  */
diff --git a/include/asm-powerpc/cpm2.h b/include/asm-powerpc/cpm2.h
index c03650609792..41a45db0c8b1 100644
--- a/include/asm-powerpc/cpm2.h
+++ b/include/asm-powerpc/cpm2.h
@@ -1206,7 +1206,9 @@ enum cpm_clk_target {
         CPM_CLK_SCC4,
         CPM_CLK_FCC1,
         CPM_CLK_FCC2,
-        CPM_CLK_FCC3
+        CPM_CLK_FCC3,
+        CPM_CLK_SMC1,
+        CPM_CLK_SMC2,
 };
 
 enum cpm_clk {
@@ -1243,6 +1245,7 @@ enum cpm_clk {
 };
 
 extern int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode);
+extern int cpm2_smc_clk_setup(enum cpm_clk_target target, int clock);
 
 #endif /* __CPM2__ */
 #endif /* __KERNEL__ */