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-rw-r--r--arch/arm/mach-omap2/clock2xxx.c86
1 files changed, 1 insertions, 85 deletions
diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index 11d6edb0b32f..88077e746966 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -44,16 +44,6 @@
44#include "cm.h" 44#include "cm.h"
45#include "cm-regbits-24xx.h" 45#include "cm-regbits-24xx.h"
46 46
47
48/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
49#define EN_APLL_STOPPED 0
50#define EN_APLL_LOCKED 3
51
52/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
53#define APLLS_CLKIN_19_2MHZ 0
54#define APLLS_CLKIN_13MHZ 2
55#define APLLS_CLKIN_12MHZ 3
56
57struct clk *vclk, *sclk, *dclk; 47struct clk *vclk, *sclk, *dclk;
58 48
59void __iomem *prcm_clksrc_ctrl; 49void __iomem *prcm_clksrc_ctrl;
@@ -126,80 +116,6 @@ static void omap2_sys_clk_recalc(struct clk *clk)
126} 116}
127#endif /* OLD_CK */ 117#endif /* OLD_CK */
128 118
129/* Enable an APLL if off */
130static int omap2_clk_apll_enable(struct clk *clk, u32 status_mask)
131{
132 u32 cval, apll_mask;
133
134 apll_mask = EN_APLL_LOCKED << clk->enable_bit;
135
136 cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
137
138 if ((cval & apll_mask) == apll_mask)
139 return 0; /* apll already enabled */
140
141 cval &= ~apll_mask;
142 cval |= apll_mask;
143 cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
144
145 omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), status_mask,
146 clk->name);
147
148 /*
149 * REVISIT: Should we return an error code if omap2_wait_clock_ready()
150 * fails?
151 */
152 return 0;
153}
154
155static int omap2_clk_apll96_enable(struct clk *clk)
156{
157 return omap2_clk_apll_enable(clk, OMAP24XX_ST_96M_APLL);
158}
159
160static int omap2_clk_apll54_enable(struct clk *clk)
161{
162 return omap2_clk_apll_enable(clk, OMAP24XX_ST_54M_APLL);
163}
164
165/* Stop APLL */
166static void omap2_clk_apll_disable(struct clk *clk)
167{
168 u32 cval;
169
170 cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
171 cval &= ~(EN_APLL_LOCKED << clk->enable_bit);
172 cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
173}
174
175const struct clkops clkops_apll96 = {
176 .enable = omap2_clk_apll96_enable,
177 .disable = omap2_clk_apll_disable,
178};
179
180const struct clkops clkops_apll54 = {
181 .enable = omap2_clk_apll54_enable,
182 .disable = omap2_clk_apll_disable,
183};
184
185static u32 omap2_get_apll_clkin(void)
186{
187 u32 aplls, srate = 0;
188
189 aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
190 aplls &= OMAP24XX_APLLS_CLKIN_MASK;
191 aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
192
193 if (aplls == APLLS_CLKIN_19_2MHZ)
194 srate = 19200000;
195 else if (aplls == APLLS_CLKIN_13MHZ)
196 srate = 13000000;
197 else if (aplls == APLLS_CLKIN_12MHZ)
198 srate = 12000000;
199
200 return srate;
201}
202
203static u32 omap2_get_sysclkdiv(void) 119static u32 omap2_get_sysclkdiv(void)
204{ 120{
205 u32 div; 121 u32 div;
@@ -213,7 +129,7 @@ static u32 omap2_get_sysclkdiv(void)
213 129
214unsigned long omap2_osc_clk_recalc(struct clk *clk) 130unsigned long omap2_osc_clk_recalc(struct clk *clk)
215{ 131{
216 return omap2_get_apll_clkin() * omap2_get_sysclkdiv(); 132 return omap2xxx_get_apll_clkin() * omap2_get_sysclkdiv();
217} 133}
218 134
219unsigned long omap2_sys_clk_recalc(struct clk *clk) 135unsigned long omap2_sys_clk_recalc(struct clk *clk)