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authorviresh kumar <viresh.kumar@st.com>2011-02-16 07:40:31 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-03-09 09:49:45 +0000
commitcf285434ac0880f94bf4afdd90b06a4655f56570 (patch)
tree6b7b0f6716c17147e45cca39d01f88570d368eb5 /arch/arm/mach-spear6xx
parent5c881d9ae9480171f01921585e1893863d7ab421 (diff)
ARM: 6679/1: SPEAr: make clk API functions more generic
- Add a dummy clk_set_rate() function. This is required for compilation of a few drivers. - Make functions in plat-spear/clock.c more generic over all SPEAr platforms. - Add div_factor in struct clk for clks with .recalc = follow_parent - Change type of register pointers to void __iomem * Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-spear6xx')
-rw-r--r--arch/arm/mach-spear6xx/clock.c67
1 files changed, 59 insertions, 8 deletions
diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c
index 36ff056b732..ef88922986e 100644
--- a/arch/arm/mach-spear6xx/clock.c
+++ b/arch/arm/mach-spear6xx/clock.c
@@ -39,10 +39,25 @@ static struct clk rtc_clk = {
};
/* clock derived from 30 MHz osc clk */
+/* pll masks structure */
+static struct pll_clk_masks pll1_masks = {
+ .mode_mask = PLL_MODE_MASK,
+ .mode_shift = PLL_MODE_SHIFT,
+ .norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK,
+ .norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT,
+ .dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK,
+ .dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT,
+ .div_p_mask = PLL_DIV_P_MASK,
+ .div_p_shift = PLL_DIV_P_SHIFT,
+ .div_n_mask = PLL_DIV_N_MASK,
+ .div_n_shift = PLL_DIV_N_SHIFT,
+};
+
/* pll1 configuration structure */
static struct pll_clk_config pll1_config = {
.mode_reg = PLL1_CTR,
.cfg_reg = PLL1_FRQ,
+ .masks = &pll1_masks,
};
/* PLL1 clock */
@@ -50,7 +65,7 @@ static struct clk pll1_clk = {
.pclk = &osc_30m_clk,
.en_reg = PLL1_CTR,
.en_reg_bit = PLL_ENABLE,
- .recalc = &pll1_clk_recalc,
+ .recalc = &pll_clk_recalc,
.private_data = &pll1_config,
};
@@ -76,11 +91,16 @@ static struct clk cpu_clk = {
.recalc = &follow_parent,
};
+/* ahb masks structure */
+static struct bus_clk_masks ahb_masks = {
+ .mask = PLL_HCLK_RATIO_MASK,
+ .shift = PLL_HCLK_RATIO_SHIFT,
+};
+
/* ahb configuration structure */
static struct bus_clk_config ahb_config = {
.reg = CORE_CLK_CFG,
- .mask = PLL_HCLK_RATIO_MASK,
- .shift = PLL_HCLK_RATIO_SHIFT,
+ .masks = &ahb_masks,
};
/* ahb clock */
@@ -112,9 +132,22 @@ static struct pclk_sel uart_pclk_sel = {
.pclk_sel_mask = UART_CLK_MASK,
};
+/* auxiliary synthesizers masks */
+static struct aux_clk_masks aux_masks = {
+ .eq_sel_mask = AUX_EQ_SEL_MASK,
+ .eq_sel_shift = AUX_EQ_SEL_SHIFT,
+ .eq1_mask = AUX_EQ1_SEL,
+ .eq2_mask = AUX_EQ2_SEL,
+ .xscale_sel_mask = AUX_XSCALE_MASK,
+ .xscale_sel_shift = AUX_XSCALE_SHIFT,
+ .yscale_sel_mask = AUX_YSCALE_MASK,
+ .yscale_sel_shift = AUX_YSCALE_SHIFT,
+};
+
/* uart configurations */
static struct aux_clk_config uart_config = {
.synth_reg = UART_CLK_SYNT,
+ .masks = &aux_masks,
};
/* uart0 clock */
@@ -140,6 +173,7 @@ static struct clk uart1_clk = {
/* firda configurations */
static struct aux_clk_config firda_config = {
.synth_reg = FIRDA_CLK_SYNT,
+ .masks = &aux_masks,
};
/* firda parents */
@@ -176,6 +210,7 @@ static struct clk firda_clk = {
/* clcd configurations */
static struct aux_clk_config clcd_config = {
.synth_reg = CLCD_CLK_SYNT,
+ .masks = &aux_masks,
};
/* clcd parents */
@@ -230,9 +265,18 @@ static struct pclk_sel gpt_pclk_sel = {
.pclk_sel_mask = GPT_CLK_MASK,
};
+/* gpt synthesizer masks */
+static struct gpt_clk_masks gpt_masks = {
+ .mscale_sel_mask = GPT_MSCALE_MASK,
+ .mscale_sel_shift = GPT_MSCALE_SHIFT,
+ .nscale_sel_mask = GPT_NSCALE_MASK,
+ .nscale_sel_shift = GPT_NSCALE_SHIFT,
+};
+
/* gpt0_1 configurations */
-static struct aux_clk_config gpt0_1_config = {
+static struct gpt_clk_config gpt0_1_config = {
.synth_reg = PRSC1_CLK_CFG,
+ .masks = &gpt_masks,
};
/* gpt0 ARM1 subsystem timer clock */
@@ -254,8 +298,9 @@ static struct clk gpt1_clk = {
};
/* gpt2 configurations */
-static struct aux_clk_config gpt2_config = {
+static struct gpt_clk_config gpt2_config = {
.synth_reg = PRSC2_CLK_CFG,
+ .masks = &gpt_masks,
};
/* gpt2 timer clock */
@@ -269,8 +314,9 @@ static struct clk gpt2_clk = {
};
/* gpt3 configurations */
-static struct aux_clk_config gpt3_config = {
+static struct gpt_clk_config gpt3_config = {
.synth_reg = PRSC3_CLK_CFG,
+ .masks = &gpt_masks,
};
/* gpt3 timer clock */
@@ -309,11 +355,16 @@ static struct clk usbd_clk = {
};
/* clock derived from ahb clk */
+/* apb masks structure */
+static struct bus_clk_masks apb_masks = {
+ .mask = HCLK_PCLK_RATIO_MASK,
+ .shift = HCLK_PCLK_RATIO_SHIFT,
+};
+
/* apb configuration structure */
static struct bus_clk_config apb_config = {
.reg = CORE_CLK_CFG,
- .mask = HCLK_PCLK_RATIO_MASK,
- .shift = HCLK_PCLK_RATIO_SHIFT,
+ .masks = &apb_masks,
};
/* apb clock */