[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>
git-mirror · Oct 4, 2007 · 2652d4e · 2652d4e
1 parent 449012d
commit 2652d4e
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Showing 2 changed files with 99 additions and 6 deletions.
diff --git 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
@@ -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__ */