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Diffstat (limited to 'arch/arm/mach-shmobile/clock-sh73a0.c')
-rw-r--r--arch/arm/mach-shmobile/clock-sh73a0.c122
1 files changed, 51 insertions, 71 deletions
diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index afa5423a0f9..784fbaa4cc5 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -21,6 +21,8 @@
#include <linux/io.h>
#include <linux/sh_clk.h>
#include <linux/clkdev.h>
+#include <asm/processor.h>
+#include <mach/clock.h>
#include <mach/common.h>
#define FRQCRA IOMEM(0xe6150000)
@@ -82,61 +84,16 @@ struct clk sh73a0_extal2_clk = {
.rate = 48000000,
};
-/* A fixed divide-by-2 block */
-static unsigned long div2_recalc(struct clk *clk)
-{
- return clk->parent->rate / 2;
-}
-
-static struct sh_clk_ops div2_clk_ops = {
- .recalc = div2_recalc,
-};
-
-static unsigned long div7_recalc(struct clk *clk)
-{
- return clk->parent->rate / 7;
-}
-
-static struct sh_clk_ops div7_clk_ops = {
- .recalc = div7_recalc,
-};
-
-static unsigned long div13_recalc(struct clk *clk)
-{
- return clk->parent->rate / 13;
-}
-
-static struct sh_clk_ops div13_clk_ops = {
- .recalc = div13_recalc,
-};
-
-/* Divide extal1 by two */
-static struct clk extal1_div2_clk = {
- .ops = &div2_clk_ops,
- .parent = &sh73a0_extal1_clk,
-};
-
-/* Divide extal2 by two */
-static struct clk extal2_div2_clk = {
- .ops = &div2_clk_ops,
- .parent = &sh73a0_extal2_clk,
-};
-
static struct sh_clk_ops main_clk_ops = {
.recalc = followparent_recalc,
};
/* Main clock */
static struct clk main_clk = {
+ /* .parent wll be set on sh73a0_clock_init() */
.ops = &main_clk_ops,
};
-/* Divide Main clock by two */
-static struct clk main_div2_clk = {
- .ops = &div2_clk_ops,
- .parent = &main_clk,
-};
-
/* PLL0, PLL1, PLL2, PLL3 */
static unsigned long pll_recalc(struct clk *clk)
{
@@ -192,21 +149,17 @@ static struct clk pll3_clk = {
.enable_bit = 3,
};
-/* Divide PLL */
-static struct clk pll1_div2_clk = {
- .ops = &div2_clk_ops,
- .parent = &pll1_clk,
-};
-
-static struct clk pll1_div7_clk = {
- .ops = &div7_clk_ops,
- .parent = &pll1_clk,
-};
+/* A fixed divide block */
+SH_CLK_RATIO(div2, 1, 2);
+SH_CLK_RATIO(div7, 1, 7);
+SH_CLK_RATIO(div13, 1, 13);
-static struct clk pll1_div13_clk = {
- .ops = &div13_clk_ops,
- .parent = &pll1_clk,
-};
+SH_FIXED_RATIO_CLK(extal1_div2_clk, sh73a0_extal1_clk, div2);
+SH_FIXED_RATIO_CLK(extal2_div2_clk, sh73a0_extal2_clk, div2);
+SH_FIXED_RATIO_CLK(main_div2_clk, main_clk, div2);
+SH_FIXED_RATIO_CLK(pll1_div2_clk, pll1_clk, div2);
+SH_FIXED_RATIO_CLK(pll1_div7_clk, pll1_clk, div7);
+SH_FIXED_RATIO_CLK(pll1_div13_clk, pll1_clk, div13);
/* External input clock */
struct clk sh73a0_extcki_clk = {
@@ -234,14 +187,24 @@ static struct clk *main_clks[] = {
&sh73a0_extalr_clk,
};
-static void div4_kick(struct clk *clk)
+static int frqcr_kick(void)
{
- unsigned long value;
+ int i;
+
+ /* set KICK bit in FRQCRB to update hardware setting, check success */
+ __raw_writel(__raw_readl(FRQCRB) | (1 << 31), FRQCRB);
+ for (i = 1000; i; i--)
+ if (__raw_readl(FRQCRB) & (1 << 31))
+ cpu_relax();
+ else
+ return i;
- /* set KICK bit in FRQCRB to update hardware setting */
- value = __raw_readl(FRQCRB);
- value |= (1 << 31);
- __raw_writel(value, FRQCRB);
+ return -ETIMEDOUT;
+}
+
+static void div4_kick(struct clk *clk)
+{
+ frqcr_kick();
}
static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
@@ -258,25 +221,37 @@ static struct clk_div4_table div4_table = {
};
enum { DIV4_I, DIV4_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
- DIV4_Z, DIV4_ZTR, DIV4_ZT, DIV4_ZX, DIV4_HP, DIV4_NR };
+ DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR };
#define DIV4(_reg, _bit, _mask, _flags) \
SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags)
static struct clk div4_clks[DIV4_NR] = {
[DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT),
- [DIV4_ZG] = DIV4(FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
+ [DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
[DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
[DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT),
[DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0),
[DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0),
- [DIV4_Z] = DIV4(FRQCRB, 24, 0x97f, 0),
- [DIV4_ZTR] = DIV4(FRQCRB, 20, 0xdff, 0),
- [DIV4_ZT] = DIV4(FRQCRB, 16, 0xdff, 0),
+ [DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0),
[DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0),
[DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0),
};
+static unsigned long twd_recalc(struct clk *clk)
+{
+ return clk_get_rate(clk->parent) / 4;
+}
+
+static struct sh_clk_ops twd_clk_ops = {
+ .recalc = twd_recalc,
+};
+
+static struct clk twd_clk = {
+ .parent = &div4_clks[DIV4_Z],
+ .ops = &twd_clk_ops,
+};
+
enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
@@ -471,6 +446,7 @@ static struct clk dsi1phy_clk = {
static struct clk *late_main_clks[] = {
&dsi0phy_clk,
&dsi1phy_clk,
+ &twd_clk,
};
enum { MSTP001,
@@ -535,6 +511,7 @@ static struct clk mstp_clks[MSTP_NR] = {
static struct clk_lookup lookups[] = {
/* main clocks */
CLKDEV_CON_ID("r_clk", &r_clk),
+ CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */
/* DIV6 clocks */
CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
@@ -581,10 +558,13 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("e6822000.i2c", &mstp_clks[MSTP323]), /* I2C1 */
CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */
CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
+ CLKDEV_DEV_ID("ee100000.sdhi", &mstp_clks[MSTP314]), /* SDHI0 */
CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
+ CLKDEV_DEV_ID("ee120000.sdhi", &mstp_clks[MSTP313]), /* SDHI1 */
CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), /* MMCIF0 */
CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */
+ CLKDEV_DEV_ID("ee140000.sdhi", &mstp_clks[MSTP311]), /* SDHI2 */
CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */
CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */
CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */