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Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/clock-sh7722.c')
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7722.c112
1 files changed, 100 insertions, 12 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 0e174af2187..1ccdfc561fe 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
@@ -130,6 +130,12 @@ static void adjust_clocks(int originate, int *l, unsigned long v[],
* is quite simple..
*/
+#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+#define STCPLL(frqcr) ((((frqcr >> 24) & 0x3f) + 1) * 2)
+#else
+#define STCPLL(frqcr) (((frqcr >> 24) & 0x1f) + 1)
+#endif
+
/*
* Instead of having two separate multipliers/divisors set, like this:
*
@@ -139,13 +145,17 @@ static void adjust_clocks(int originate, int *l, unsigned long v[],
* I created the divisors2 array, which is used to calculate rate like
* rate = parent * 2 / divisors2[ divisor ];
*/
+#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+static int divisors2[] = { 4, 1, 8, 12, 16, 24, 32, 1, 48, 64, 72, 96, 1, 144 };
+#else
static int divisors2[] = { 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, 40 };
+#endif
static void master_clk_recalc(struct clk *clk)
{
unsigned frqcr = ctrl_inl(FRQCR);
- clk->rate = CONFIG_SH_PCLK_FREQ * (((frqcr >> 24) & 0x1f) + 1);
+ clk->rate = CONFIG_SH_PCLK_FREQ * STCPLL(frqcr);
}
static void master_clk_init(struct clk *clk)
@@ -161,13 +171,30 @@ static void module_clk_recalc(struct clk *clk)
{
unsigned long frqcr = ctrl_inl(FRQCR);
- clk->rate = clk->parent->rate / (((frqcr >> 24) & 0x1f) + 1);
+ clk->rate = clk->parent->rate / STCPLL(frqcr);
}
+#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+#define MASTERDIVS { 12, 16, 24, 30, 32, 36, 48 }
+#define STCMASK 0x3f
+#define DIVCALC(div) (div/2-1)
+#define FRQCRKICK 0x80000000
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+#define MASTERDIVS { 6, 8, 12, 16 }
+#define STCMASK 0x1f
+#define DIVCALC(div) (div-1)
+#define FRQCRKICK 0x00000000
+#else
+#define MASTERDIVS { 2, 3, 4, 6, 8, 16 }
+#define STCMASK 0x1f
+#define DIVCALC(div) (div-1)
+#define FRQCRKICK 0x00000000
+#endif
+
static int master_clk_setrate(struct clk *clk, unsigned long rate, int id)
{
int div = rate / clk->rate;
- int master_divs[] = { 2, 3, 4, 6, 8, 16 };
+ int master_divs[] = MASTERDIVS;
int index;
unsigned long frqcr;
@@ -180,8 +207,9 @@ static int master_clk_setrate(struct clk *clk, unsigned long rate, int id)
div = master_divs[index - 1];
frqcr = ctrl_inl(FRQCR);
- frqcr &= ~(0xF << 24);
- frqcr |= ( (div-1) << 24);
+ frqcr &= ~(STCMASK << 24);
+ frqcr |= (DIVCALC(div) << 24);
+ frqcr |= FRQCRKICK;
ctrl_outl(frqcr, FRQCR);
return 0;
@@ -377,6 +405,7 @@ static int sh7722_frqcr_set_rate(struct clk *clk, unsigned long rate,
/* clear FRQCR bits */
frqcr &= ~(ctx.mask << ctx.shift);
frqcr |= div << ctx.shift;
+ frqcr |= FRQCRKICK;
/* ...and perform actual change */
ctrl_outl(frqcr, FRQCR);
@@ -542,8 +571,8 @@ static struct clk sh7722_r_clock = {
.flags = CLK_RATE_PROPAGATES,
};
-#ifndef CONFIG_CPU_SUBTYPE_SH7343
-
+#if !defined(CONFIG_CPU_SUBTYPE_SH7343) &&\
+ !defined(CONFIG_CPU_SUBTYPE_SH7724)
/*
* these three clocks - SIU A, SIU B, IrDA - share the same clk_ops
* methods of clk_ops determine which register they should access by
@@ -560,15 +589,16 @@ static struct clk sh7722_siu_b_clock = {
.arch_flags = SCLKBCR,
.ops = &sh7722_siu_clk_ops,
};
+#endif /* CONFIG_CPU_SUBTYPE_SH7343, SH7724 */
-#if defined(CONFIG_CPU_SUBTYPE_SH7722)
+#if defined(CONFIG_CPU_SUBTYPE_SH7722) ||\
+ defined(CONFIG_CPU_SUBTYPE_SH7724)
static struct clk sh7722_irda_clock = {
.name = "irda_clk",
.arch_flags = IrDACLKCR,
.ops = &sh7722_siu_clk_ops,
};
#endif
-#endif /* CONFIG_CPU_SUBTYPE_SH7343 */
static struct clk sh7722_video_clock = {
.name = "video_clk",
@@ -715,6 +745,61 @@ static struct clk sh7722_mstpcr_clocks[] = {
MSTPCR("vpu0", "bus_clk", 2, 1),
MSTPCR("lcdc0", "bus_clk", 2, 0),
#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+ /* See Datasheet : Overview -> Block Diagram */
+ MSTPCR("tlb0", "cpu_clk", 0, 31),
+ MSTPCR("ic0", "cpu_clk", 0, 30),
+ MSTPCR("oc0", "cpu_clk", 0, 29),
+ MSTPCR("rs0", "bus_clk", 0, 28),
+ MSTPCR("ilmem0", "cpu_clk", 0, 27),
+ MSTPCR("l2c0", "sh_clk", 0, 26),
+ MSTPCR("fpu0", "cpu_clk", 0, 24),
+ MSTPCR("intc0", "peripheral_clk", 0, 22),
+ MSTPCR("dmac0", "bus_clk", 0, 21),
+ MSTPCR("sh0", "sh_clk", 0, 20),
+ MSTPCR("hudi0", "peripheral_clk", 0, 19),
+ MSTPCR("ubc0", "cpu_clk", 0, 17),
+ MSTPCR("tmu0", "peripheral_clk", 0, 15),
+ MSTPCR("cmt0", "r_clk", 0, 14),
+ MSTPCR("rwdt0", "r_clk", 0, 13),
+ MSTPCR("dmac1", "bus_clk", 0, 12),
+ MSTPCR("tmu1", "peripheral_clk", 0, 10),
+ MSTPCR("scif0", "peripheral_clk", 0, 9),
+ MSTPCR("scif1", "peripheral_clk", 0, 8),
+ MSTPCR("scif2", "peripheral_clk", 0, 7),
+ MSTPCR("scif3", "bus_clk", 0, 6),
+ MSTPCR("scif4", "bus_clk", 0, 5),
+ MSTPCR("scif5", "bus_clk", 0, 4),
+ MSTPCR("msiof0", "bus_clk", 0, 2),
+ MSTPCR("msiof1", "bus_clk", 0, 1),
+ MSTPCR("keysc0", "r_clk", 1, 12),
+ MSTPCR("rtc0", "r_clk", 1, 11),
+ MSTPCR("i2c0", "peripheral_clk", 1, 9),
+ MSTPCR("i2c1", "peripheral_clk", 1, 8),
+ MSTPCR("mmc0", "bus_clk", 2, 29),
+ MSTPCR("eth0", "bus_clk", 2, 28),
+ MSTPCR("atapi0", "bus_clk", 2, 26),
+ MSTPCR("tpu0", "bus_clk", 2, 25),
+ MSTPCR("irda0", "peripheral_clk", 2, 24),
+ MSTPCR("tsif0", "bus_clk", 2, 22),
+ MSTPCR("usb1", "bus_clk", 2, 21),
+ MSTPCR("usb0", "bus_clk", 2, 20),
+ MSTPCR("2dg0", "bus_clk", 2, 19),
+ MSTPCR("sdhi0", "bus_clk", 2, 18),
+ MSTPCR("sdhi1", "bus_clk", 2, 17),
+ MSTPCR("veu1", "bus_clk", 2, 15),
+ MSTPCR("ceu1", "bus_clk", 2, 13),
+ MSTPCR("beu1", "bus_clk", 2, 12),
+ MSTPCR("2ddmac0", "sh_clk", 2, 10),
+ MSTPCR("spu0", "bus_clk", 2, 9),
+ MSTPCR("jpu0", "bus_clk", 2, 6),
+ MSTPCR("vou0", "bus_clk", 2, 5),
+ MSTPCR("beu0", "bus_clk", 2, 4),
+ MSTPCR("ceu0", "bus_clk", 2, 3),
+ MSTPCR("veu0", "bus_clk", 2, 2),
+ MSTPCR("vpu0", "bus_clk", 2, 1),
+ MSTPCR("lcdc0", "bus_clk", 2, 0),
+#endif
#if defined(CONFIG_CPU_SUBTYPE_SH7343)
MSTPCR("uram0", "umem_clk", 0, 28),
MSTPCR("xymem0", "bus_clk", 0, 26),
@@ -786,12 +871,15 @@ static struct clk *sh7722_clocks[] = {
&sh7722_sh_clock,
&sh7722_peripheral_clock,
&sh7722_sdram_clock,
-#ifndef CONFIG_CPU_SUBTYPE_SH7343
+#if !defined(CONFIG_CPU_SUBTYPE_SH7343) &&\
+ !defined(CONFIG_CPU_SUBTYPE_SH7724)
&sh7722_siu_a_clock,
&sh7722_siu_b_clock,
-#if defined(CONFIG_CPU_SUBTYPE_SH7722)
- &sh7722_irda_clock,
#endif
+/* 7724 should support FSI clock */
+#if defined(CONFIG_CPU_SUBTYPE_SH7722) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7724)
+ &sh7722_irda_clock,
#endif
&sh7722_video_clock,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-22 04:33:58 +0000