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Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/clock-sh7724.c')
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7724.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
index 9db743802f06..6707061fbf54 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
@@ -127,13 +127,28 @@ struct clk *main_clks[] = {
127 &div3_clk, 127 &div3_clk,
128}; 128};
129 129
130static void div4_kick(struct clk *clk)
131{
132 unsigned long value;
133
134 /* set KICK bit in FRQCRA to update hardware setting */
135 value = __raw_readl(FRQCRA);
136 value |= (1 << 31);
137 __raw_writel(value, FRQCRA);
138}
139
130static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 0, 24, 32, 36, 48, 0, 72 }; 140static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 0, 24, 32, 36, 48, 0, 72 };
131 141
132static struct clk_div_mult_table div4_table = { 142static struct clk_div_mult_table div4_div_mult_table = {
133 .divisors = divisors, 143 .divisors = divisors,
134 .nr_divisors = ARRAY_SIZE(divisors), 144 .nr_divisors = ARRAY_SIZE(divisors),
135}; 145};
136 146
147static struct clk_div4_table div4_table = {
148 .div_mult_table = &div4_div_mult_table,
149 .kick = div4_kick,
150};
151
137enum { DIV4_I, DIV4_SH, DIV4_B, DIV4_P, DIV4_M1, DIV4_NR }; 152enum { DIV4_I, DIV4_SH, DIV4_B, DIV4_P, DIV4_M1, DIV4_NR };
138 153
139#define DIV4(_str, _reg, _bit, _mask, _flags) \ 154#define DIV4(_str, _reg, _bit, _mask, _flags) \
@@ -144,7 +159,7 @@ struct clk div4_clks[DIV4_NR] = {
144 [DIV4_SH] = DIV4("shyway_clk", FRQCRA, 12, 0x2f7c, CLK_ENABLE_ON_INIT), 159 [DIV4_SH] = DIV4("shyway_clk", FRQCRA, 12, 0x2f7c, CLK_ENABLE_ON_INIT),
145 [DIV4_B] = DIV4("bus_clk", FRQCRA, 8, 0x2f7c, CLK_ENABLE_ON_INIT), 160 [DIV4_B] = DIV4("bus_clk", FRQCRA, 8, 0x2f7c, CLK_ENABLE_ON_INIT),
146 [DIV4_P] = DIV4("peripheral_clk", FRQCRA, 0, 0x2f7c, 0), 161 [DIV4_P] = DIV4("peripheral_clk", FRQCRA, 0, 0x2f7c, 0),
147 [DIV4_M1] = DIV4("vpu_clk", FRQCRB, 4, 0x2f7c, 0), 162 [DIV4_M1] = DIV4("vpu_clk", FRQCRB, 4, 0x2f7c, CLK_ENABLE_ON_INIT),
148}; 163};
149 164
150struct clk div6_clks[] = { 165struct clk div6_clks[] = {