Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2652d4ec4a363487d0106a8bf51f1b081dd7e397
Commit:     2652d4ec4a363487d0106a8bf51f1b081dd7e397
Parent:     449012daa92a60e42f0d55478641cfa796d51528
Author:     Scott Wood <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 16 13:26:35 2007 -0500
Committer:  Kumar Gala <[EMAIL PROTECTED]>
CommitDate: Thu Oct 4 11:02:14 2007 -0500

    [POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup().
    
    Signed-off-by: Scott Wood <[EMAIL PROTECTED]>
    Signed-off-by: Kumar Gala <[EMAIL PROTECTED]>
---
 arch/powerpc/sysdev/cpm2_common.c |  100 +++++++++++++++++++++++++++++++++++--
 include/asm-powerpc/cpm2.h        |    5 ++-
 2 files changed, 99 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/sysdev/cpm2_common.c 
b/arch/powerpc/sysdev/cpm2_common.c
index 0330ca4..c6dc0bf 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 c036506..41a45db 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__ */
-
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