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Diffstat (limited to 'arch/arm/mach-omap2/clock24xx.c')
-rw-r--r--arch/arm/mach-omap2/clock24xx.c377
1 files changed, 306 insertions, 71 deletions
diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
index d382eb0184a..1e839c5a28c 100644
--- a/arch/arm/mach-omap2/clock24xx.c
+++ b/arch/arm/mach-omap2/clock24xx.c
@@ -31,15 +31,192 @@
#include <mach/clock.h>
#include <mach/sram.h>
#include <asm/div64.h>
+#include <asm/clkdev.h>
-#include "memory.h"
+#include <mach/sdrc.h>
#include "clock.h"
-#include "clock24xx.h"
#include "prm.h"
#include "prm-regbits-24xx.h"
#include "cm.h"
#include "cm-regbits-24xx.h"
+static const struct clkops clkops_oscck;
+static const struct clkops clkops_fixed;
+
+#include "clock24xx.h"
+
+struct omap_clk {
+ u32 cpu;
+ struct clk_lookup lk;
+};
+
+#define CLK(dev, con, ck, cp) \
+ { \
+ .cpu = cp, \
+ .lk = { \
+ .dev_id = dev, \
+ .con_id = con, \
+ .clk = ck, \
+ }, \
+ }
+
+#define CK_243X (1 << 0)
+#define CK_242X (1 << 1)
+
+static struct omap_clk omap24xx_clks[] = {
+ /* external root sources */
+ CLK(NULL, "func_32k_ck", &func_32k_ck, CK_243X | CK_242X),
+ CLK(NULL, "osc_ck", &osc_ck, CK_243X | CK_242X),
+ CLK(NULL, "sys_ck", &sys_ck, CK_243X | CK_242X),
+ CLK(NULL, "alt_ck", &alt_ck, CK_243X | CK_242X),
+ /* internal analog sources */
+ CLK(NULL, "dpll_ck", &dpll_ck, CK_243X | CK_242X),
+ CLK(NULL, "apll96_ck", &apll96_ck, CK_243X | CK_242X),
+ CLK(NULL, "apll54_ck", &apll54_ck, CK_243X | CK_242X),
+ /* internal prcm root sources */
+ CLK(NULL, "func_54m_ck", &func_54m_ck, CK_243X | CK_242X),
+ CLK(NULL, "core_ck", &core_ck, CK_243X | CK_242X),
+ CLK(NULL, "func_96m_ck", &func_96m_ck, CK_243X | CK_242X),
+ CLK(NULL, "func_48m_ck", &func_48m_ck, CK_243X | CK_242X),
+ CLK(NULL, "func_12m_ck", &func_12m_ck, CK_243X | CK_242X),
+ CLK(NULL, "ck_wdt1_osc", &wdt1_osc_ck, CK_243X | CK_242X),
+ CLK(NULL, "sys_clkout_src", &sys_clkout_src, CK_243X | CK_242X),
+ CLK(NULL, "sys_clkout", &sys_clkout, CK_243X | CK_242X),
+ CLK(NULL, "sys_clkout2_src", &sys_clkout2_src, CK_242X),
+ CLK(NULL, "sys_clkout2", &sys_clkout2, CK_242X),
+ CLK(NULL, "emul_ck", &emul_ck, CK_242X),
+ /* mpu domain clocks */
+ CLK(NULL, "mpu_ck", &mpu_ck, CK_243X | CK_242X),
+ /* dsp domain clocks */
+ CLK(NULL, "dsp_fck", &dsp_fck, CK_243X | CK_242X),
+ CLK(NULL, "dsp_irate_ick", &dsp_irate_ick, CK_243X | CK_242X),
+ CLK(NULL, "dsp_ick", &dsp_ick, CK_242X),
+ CLK(NULL, "iva2_1_ick", &iva2_1_ick, CK_243X),
+ CLK(NULL, "iva1_ifck", &iva1_ifck, CK_242X),
+ CLK(NULL, "iva1_mpu_int_ifck", &iva1_mpu_int_ifck, CK_242X),
+ /* GFX domain clocks */
+ CLK(NULL, "gfx_3d_fck", &gfx_3d_fck, CK_243X | CK_242X),
+ CLK(NULL, "gfx_2d_fck", &gfx_2d_fck, CK_243X | CK_242X),
+ CLK(NULL, "gfx_ick", &gfx_ick, CK_243X | CK_242X),
+ /* Modem domain clocks */
+ CLK(NULL, "mdm_ick", &mdm_ick, CK_243X),
+ CLK(NULL, "mdm_osc_ck", &mdm_osc_ck, CK_243X),
+ /* DSS domain clocks */
+ CLK(NULL, "dss_ick", &dss_ick, CK_243X | CK_242X),
+ CLK(NULL, "dss1_fck", &dss1_fck, CK_243X | CK_242X),
+ CLK(NULL, "dss2_fck", &dss2_fck, CK_243X | CK_242X),
+ CLK(NULL, "dss_54m_fck", &dss_54m_fck, CK_243X | CK_242X),
+ /* L3 domain clocks */
+ CLK(NULL, "core_l3_ck", &core_l3_ck, CK_243X | CK_242X),
+ CLK(NULL, "ssi_fck", &ssi_ssr_sst_fck, CK_243X | CK_242X),
+ CLK(NULL, "usb_l4_ick", &usb_l4_ick, CK_243X | CK_242X),
+ /* L4 domain clocks */
+ CLK(NULL, "l4_ck", &l4_ck, CK_243X | CK_242X),
+ CLK(NULL, "ssi_l4_ick", &ssi_l4_ick, CK_243X | CK_242X),
+ /* virtual meta-group clock */
+ CLK(NULL, "virt_prcm_set", &virt_prcm_set, CK_243X | CK_242X),
+ /* general l4 interface ck, multi-parent functional clk */
+ CLK(NULL, "gpt1_ick", &gpt1_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt1_fck", &gpt1_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt2_ick", &gpt2_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt2_fck", &gpt2_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt3_ick", &gpt3_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt3_fck", &gpt3_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt4_ick", &gpt4_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt4_fck", &gpt4_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt5_ick", &gpt5_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt5_fck", &gpt5_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt6_ick", &gpt6_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt6_fck", &gpt6_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt7_ick", &gpt7_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt7_fck", &gpt7_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt8_ick", &gpt8_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt8_fck", &gpt8_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt9_ick", &gpt9_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt9_fck", &gpt9_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt10_ick", &gpt10_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt10_fck", &gpt10_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt11_ick", &gpt11_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt11_fck", &gpt11_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpt12_ick", &gpt12_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpt12_fck", &gpt12_fck, CK_243X | CK_242X),
+ CLK("omap-mcbsp.1", "ick", &mcbsp1_ick, CK_243X | CK_242X),
+ CLK("omap-mcbsp.1", "fck", &mcbsp1_fck, CK_243X | CK_242X),
+ CLK("omap-mcbsp.2", "ick", &mcbsp2_ick, CK_243X | CK_242X),
+ CLK("omap-mcbsp.2", "fck", &mcbsp2_fck, CK_243X | CK_242X),
+ CLK("omap-mcbsp.3", "ick", &mcbsp3_ick, CK_243X),
+ CLK("omap-mcbsp.3", "fck", &mcbsp3_fck, CK_243X),
+ CLK("omap-mcbsp.4", "ick", &mcbsp4_ick, CK_243X),
+ CLK("omap-mcbsp.4", "fck", &mcbsp4_fck, CK_243X),
+ CLK("omap-mcbsp.5", "ick", &mcbsp5_ick, CK_243X),
+ CLK("omap-mcbsp.5", "fck", &mcbsp5_fck, CK_243X),
+ CLK("omap2_mcspi.1", "ick", &mcspi1_ick, CK_243X | CK_242X),
+ CLK("omap2_mcspi.1", "fck", &mcspi1_fck, CK_243X | CK_242X),
+ CLK("omap2_mcspi.2", "ick", &mcspi2_ick, CK_243X | CK_242X),
+ CLK("omap2_mcspi.2", "fck", &mcspi2_fck, CK_243X | CK_242X),
+ CLK("omap2_mcspi.3", "ick", &mcspi3_ick, CK_243X),
+ CLK("omap2_mcspi.3", "fck", &mcspi3_fck, CK_243X),
+ CLK(NULL, "uart1_ick", &uart1_ick, CK_243X | CK_242X),
+ CLK(NULL, "uart1_fck", &uart1_fck, CK_243X | CK_242X),
+ CLK(NULL, "uart2_ick", &uart2_ick, CK_243X | CK_242X),
+ CLK(NULL, "uart2_fck", &uart2_fck, CK_243X | CK_242X),
+ CLK(NULL, "uart3_ick", &uart3_ick, CK_243X | CK_242X),
+ CLK(NULL, "uart3_fck", &uart3_fck, CK_243X | CK_242X),
+ CLK(NULL, "gpios_ick", &gpios_ick, CK_243X | CK_242X),
+ CLK(NULL, "gpios_fck", &gpios_fck, CK_243X | CK_242X),
+ CLK("omap_wdt", "ick", &mpu_wdt_ick, CK_243X | CK_242X),
+ CLK("omap_wdt", "fck", &mpu_wdt_fck, CK_243X | CK_242X),
+ CLK(NULL, "sync_32k_ick", &sync_32k_ick, CK_243X | CK_242X),
+ CLK(NULL, "wdt1_ick", &wdt1_ick, CK_243X | CK_242X),
+ CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_243X | CK_242X),
+ CLK(NULL, "icr_ick", &icr_ick, CK_243X),
+ CLK("omap24xxcam", "fck", &cam_fck, CK_243X | CK_242X),
+ CLK("omap24xxcam", "ick", &cam_ick, CK_243X | CK_242X),
+ CLK(NULL, "mailboxes_ick", &mailboxes_ick, CK_243X | CK_242X),
+ CLK(NULL, "wdt4_ick", &wdt4_ick, CK_243X | CK_242X),
+ CLK(NULL, "wdt4_fck", &wdt4_fck, CK_243X | CK_242X),
+ CLK(NULL, "wdt3_ick", &wdt3_ick, CK_242X),
+ CLK(NULL, "wdt3_fck", &wdt3_fck, CK_242X),
+ CLK(NULL, "mspro_ick", &mspro_ick, CK_243X | CK_242X),
+ CLK(NULL, "mspro_fck", &mspro_fck, CK_243X | CK_242X),
+ CLK("mmci-omap.0", "ick", &mmc_ick, CK_242X),
+ CLK("mmci-omap.0", "fck", &mmc_fck, CK_242X),
+ CLK(NULL, "fac_ick", &fac_ick, CK_243X | CK_242X),
+ CLK(NULL, "fac_fck", &fac_fck, CK_243X | CK_242X),
+ CLK(NULL, "eac_ick", &eac_ick, CK_242X),
+ CLK(NULL, "eac_fck", &eac_fck, CK_242X),
+ CLK("omap_hdq.0", "ick", &hdq_ick, CK_243X | CK_242X),
+ CLK("omap_hdq.1", "fck", &hdq_fck, CK_243X | CK_242X),
+ CLK("i2c_omap.1", "ick", &i2c1_ick, CK_243X | CK_242X),
+ CLK("i2c_omap.1", "fck", &i2c1_fck, CK_242X),
+ CLK("i2c_omap.1", "fck", &i2chs1_fck, CK_243X),
+ CLK("i2c_omap.2", "ick", &i2c2_ick, CK_243X | CK_242X),
+ CLK("i2c_omap.2", "fck", &i2c2_fck, CK_242X),
+ CLK("i2c_omap.2", "fck", &i2chs2_fck, CK_243X),
+ CLK(NULL, "gpmc_fck", &gpmc_fck, CK_243X | CK_242X),
+ CLK(NULL, "sdma_fck", &sdma_fck, CK_243X | CK_242X),
+ CLK(NULL, "sdma_ick", &sdma_ick, CK_243X | CK_242X),
+ CLK(NULL, "vlynq_ick", &vlynq_ick, CK_242X),
+ CLK(NULL, "vlynq_fck", &vlynq_fck, CK_242X),
+ CLK(NULL, "sdrc_ick", &sdrc_ick, CK_243X),
+ CLK(NULL, "des_ick", &des_ick, CK_243X | CK_242X),
+ CLK(NULL, "sha_ick", &sha_ick, CK_243X | CK_242X),
+ CLK("omap_rng", "ick", &rng_ick, CK_243X | CK_242X),
+ CLK(NULL, "aes_ick", &aes_ick, CK_243X | CK_242X),
+ CLK(NULL, "pka_ick", &pka_ick, CK_243X | CK_242X),
+ CLK(NULL, "usb_fck", &usb_fck, CK_243X | CK_242X),
+ CLK(NULL, "usbhs_ick", &usbhs_ick, CK_243X),
+ CLK("mmci-omap-hs.0", "ick", &mmchs1_ick, CK_243X),
+ CLK("mmci-omap-hs.0", "fck", &mmchs1_fck, CK_243X),
+ CLK("mmci-omap-hs.1", "ick", &mmchs2_ick, CK_243X),
+ CLK("mmci-omap-hs.1", "fck", &mmchs2_fck, CK_243X),
+ CLK(NULL, "gpio5_ick", &gpio5_ick, CK_243X),
+ CLK(NULL, "gpio5_fck", &gpio5_fck, CK_243X),
+ CLK(NULL, "mdm_intc_ick", &mdm_intc_ick, CK_243X),
+ CLK("mmci-omap-hs.0", "mmchsdb_fck", &mmchsdb1_fck, CK_243X),
+ CLK("mmci-omap-hs.1", "mmchsdb_fck", &mmchsdb2_fck, CK_243X),
+};
+
/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
#define EN_APLL_STOPPED 0
#define EN_APLL_LOCKED 3
@@ -59,19 +236,32 @@ static struct clk *sclk;
* Omap24xx specific clock functions
*-------------------------------------------------------------------------*/
-/* This actually returns the rate of core_ck, not dpll_ck. */
-static u32 omap2_get_dpll_rate_24xx(struct clk *tclk)
+/**
+ * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
+ * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
+ *
+ * Returns the CORE_CLK rate. CORE_CLK can have one of three rate
+ * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
+ * (the latter is unusual). This currently should be called with
+ * struct clk *dpll_ck, which is a composite clock of dpll_ck and
+ * core_ck.
+ */
+static unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
{
- long long dpll_clk;
- u8 amult;
+ long long core_clk;
+ u32 v;
+
+ core_clk = omap2_get_dpll_rate(clk);
- dpll_clk = omap2_get_dpll_rate(tclk);
+ v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+ v &= OMAP24XX_CORE_CLK_SRC_MASK;
- amult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- amult &= OMAP24XX_CORE_CLK_SRC_MASK;
- dpll_clk *= amult;
+ if (v == CORE_CLK_SRC_32K)
+ core_clk = 32768;
+ else
+ core_clk *= v;
- return dpll_clk;
+ return core_clk;
}
static int omap2_enable_osc_ck(struct clk *clk)
@@ -96,6 +286,11 @@ static void omap2_disable_osc_ck(struct clk *clk)
OMAP24XX_PRCM_CLKSRC_CTRL);
}
+static const struct clkops clkops_oscck = {
+ .enable = &omap2_enable_osc_ck,
+ .disable = &omap2_disable_osc_ck,
+};
+
#ifdef OLD_CK
/* Recalculate SYST_CLK */
static void omap2_sys_clk_recalc(struct clk * clk)
@@ -149,11 +344,16 @@ static void omap2_clk_fixed_disable(struct clk *clk)
cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
}
+static const struct clkops clkops_fixed = {
+ .enable = &omap2_clk_fixed_enable,
+ .disable = &omap2_clk_fixed_disable,
+};
+
/*
* Uses the current prcm set to tell if a rate is valid.
* You can go slower, but not faster within a given rate set.
*/
-long omap2_dpllcore_round_rate(unsigned long target_rate)
+static long omap2_dpllcore_round_rate(unsigned long target_rate)
{
u32 high, low, core_clk_src;
@@ -182,11 +382,9 @@ long omap2_dpllcore_round_rate(unsigned long target_rate)
}
-static void omap2_dpllcore_recalc(struct clk *clk)
+static unsigned long omap2_dpllcore_recalc(struct clk *clk)
{
- clk->rate = omap2_get_dpll_rate_24xx(clk);
-
- propagate_rate(clk);
+ return omap2xxx_clk_get_core_rate(clk);
}
static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
@@ -195,22 +393,19 @@ static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
u32 bypass = 0;
struct prcm_config tmpset;
const struct dpll_data *dd;
- unsigned long flags;
- int ret = -EINVAL;
- local_irq_save(flags);
- cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);
mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
mult &= OMAP24XX_CORE_CLK_SRC_MASK;
if ((rate == (cur_rate / 2)) && (mult == 2)) {
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL, 1);
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
} else if ((rate == (cur_rate * 2)) && (mult == 1)) {
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1);
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
} else if (rate != cur_rate) {
valid_rate = omap2_dpllcore_round_rate(rate);
if (valid_rate != rate)
- goto dpll_exit;
+ return -EINVAL;
if (mult == 1)
low = curr_prcm_set->dpll_speed;
@@ -219,7 +414,7 @@ static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
dd = clk->dpll_data;
if (!dd)
- goto dpll_exit;
+ return -EINVAL;
tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg);
tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
@@ -245,22 +440,19 @@ static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
if (rate == curr_prcm_set->xtal_speed) /* If asking for 1-1 */
bypass = 1;
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1); /* For init_mem */
+ /* For omap2xxx_sdrc_init_params() */
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
/* Force dll lock mode */
omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr,
bypass);
/* Errata: ret dll entry state */
- omap2_init_memory_params(omap2_dll_force_needed());
- omap2_reprogram_sdrc(done_rate, 0);
+ omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
+ omap2xxx_sdrc_reprogram(done_rate, 0);
}
- omap2_dpllcore_recalc(&dpll_ck);
- ret = 0;
-dpll_exit:
- local_irq_restore(flags);
- return(ret);
+ return 0;
}
/**
@@ -269,9 +461,9 @@ dpll_exit:
*
* Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
*/
-static void omap2_table_mpu_recalc(struct clk *clk)
+static unsigned long omap2_table_mpu_recalc(struct clk *clk)
{
- clk->rate = curr_prcm_set->mpu_speed;
+ return curr_prcm_set->mpu_speed;
}
/*
@@ -337,12 +529,12 @@ static int omap2_select_table_rate(struct clk *clk, unsigned long rate)
}
curr_prcm_set = prcm;
- cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);
if (prcm->dpll_speed == cur_rate / 2) {
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL, 1);
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
} else if (prcm->dpll_speed == cur_rate * 2) {
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1);
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
} else if (prcm->dpll_speed != cur_rate) {
local_irq_save(flags);
@@ -366,27 +558,67 @@ static int omap2_select_table_rate(struct clk *clk, unsigned long rate)
/* Major subsystem dividers */
tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
- cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD, CM_CLKSEL1);
+ cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
+ CM_CLKSEL1);
+
if (cpu_is_omap2430())
cm_write_mod_reg(prcm->cm_clksel_mdm,
OMAP2430_MDM_MOD, CM_CLKSEL);
- /* x2 to enter init_mem */
- omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1);
+ /* x2 to enter omap2xxx_sdrc_init_params() */
+ omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr,
bypass);
- omap2_init_memory_params(omap2_dll_force_needed());
- omap2_reprogram_sdrc(done_rate, 0);
+ omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
+ omap2xxx_sdrc_reprogram(done_rate, 0);
local_irq_restore(flags);
}
- omap2_dpllcore_recalc(&dpll_ck);
return 0;
}
+#ifdef CONFIG_CPU_FREQ
+/*
+ * Walk PRCM rate table and fillout cpufreq freq_table
+ */
+static struct cpufreq_frequency_table freq_table[ARRAY_SIZE(rate_table)];
+
+void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
+{
+ struct prcm_config *prcm;
+ int i = 0;
+
+ for (prcm = rate_table; prcm->mpu_speed; prcm++) {
+ if (!(prcm->flags & cpu_mask))
+ continue;
+ if (prcm->xtal_speed != sys_ck.rate)
+ continue;
+
+ /* don't put bypass rates in table */
+ if (prcm->dpll_speed == prcm->xtal_speed)
+ continue;
+
+ freq_table[i].index = i;
+ freq_table[i].frequency = prcm->mpu_speed / 1000;
+ i++;
+ }
+
+ if (i == 0) {
+ printk(KERN_WARNING "%s: failed to initialize frequency "
+ "table\n", __func__);
+ return;
+ }
+
+ freq_table[i].index = i;
+ freq_table[i].frequency = CPUFREQ_TABLE_END;
+
+ *table = &freq_table[0];
+}
+#endif
+
static struct clk_functions omap2_clk_functions = {
.clk_enable = omap2_clk_enable,
.clk_disable = omap2_clk_disable,
@@ -394,24 +626,27 @@ static struct clk_functions omap2_clk_functions = {
.clk_set_rate = omap2_clk_set_rate,
.clk_set_parent = omap2_clk_set_parent,
.clk_disable_unused = omap2_clk_disable_unused,
+#ifdef CONFIG_CPU_FREQ
+ .clk_init_cpufreq_table = omap2_clk_init_cpufreq_table,
+#endif
};
static u32 omap2_get_apll_clkin(void)
{
- u32 aplls, sclk = 0;
+ u32 aplls, srate = 0;
aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
aplls &= OMAP24XX_APLLS_CLKIN_MASK;
aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
if (aplls == APLLS_CLKIN_19_2MHZ)
- sclk = 19200000;
+ srate = 19200000;
else if (aplls == APLLS_CLKIN_13MHZ)
- sclk = 13000000;
+ srate = 13000000;
else if (aplls == APLLS_CLKIN_12MHZ)
- sclk = 12000000;
+ srate = 12000000;
- return sclk;
+ return srate;
}
static u32 omap2_get_sysclkdiv(void)
@@ -425,16 +660,14 @@ static u32 omap2_get_sysclkdiv(void)
return div;
}
-static void omap2_osc_clk_recalc(struct clk *clk)
+static unsigned long omap2_osc_clk_recalc(struct clk *clk)
{
- clk->rate = omap2_get_apll_clkin() * omap2_get_sysclkdiv();
- propagate_rate(clk);
+ return omap2_get_apll_clkin() * omap2_get_sysclkdiv();
}
-static void omap2_sys_clk_recalc(struct clk *clk)
+static unsigned long omap2_sys_clk_recalc(struct clk *clk)
{
- clk->rate = clk->parent->rate / omap2_get_sysclkdiv();
- propagate_rate(clk);
+ return clk->parent->rate / omap2_get_sysclkdiv();
}
/*
@@ -460,7 +693,7 @@ static int __init omap2_clk_arch_init(void)
if (!mpurate)
return -EINVAL;
- if (omap2_select_table_rate(&virt_prcm_set, mpurate))
+ if (clk_set_rate(&virt_prcm_set, mpurate))
printk(KERN_ERR "Could not find matching MPU rate\n");
recalculate_root_clocks();
@@ -477,8 +710,8 @@ arch_initcall(omap2_clk_arch_init);
int __init omap2_clk_init(void)
{
struct prcm_config *prcm;
- struct clk **clkp;
- u32 clkrate;
+ struct omap_clk *c;
+ u32 clkrate, cpu_mask;
if (cpu_is_omap242x())
cpu_mask = RATE_IN_242X;
@@ -487,26 +720,28 @@ int __init omap2_clk_init(void)
clk_init(&omap2_clk_functions);
- omap2_osc_clk_recalc(&osc_ck);
- omap2_sys_clk_recalc(&sys_ck);
+ osc_ck.rate = omap2_osc_clk_recalc(&osc_ck);
+ propagate_rate(&osc_ck);
+ sys_ck.rate = omap2_sys_clk_recalc(&sys_ck);
+ propagate_rate(&sys_ck);
- for (clkp = onchip_24xx_clks;
- clkp < onchip_24xx_clks + ARRAY_SIZE(onchip_24xx_clks);
- clkp++) {
+ for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
+ clk_init_one(c->lk.clk);
- if ((*clkp)->flags & CLOCK_IN_OMAP242X && cpu_is_omap2420()) {
- clk_register(*clkp);
- continue;
- }
+ cpu_mask = 0;
+ if (cpu_is_omap2420())
+ cpu_mask |= CK_242X;
+ if (cpu_is_omap2430())
+ cpu_mask |= CK_243X;
- if ((*clkp)->flags & CLOCK_IN_OMAP243X && cpu_is_omap2430()) {
- clk_register(*clkp);
- continue;
+ for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
+ if (c->cpu & cpu_mask) {
+ clkdev_add(&c->lk);
+ clk_register(c->lk.clk);
}
- }
/* Check the MPU rate set by bootloader */
- clkrate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ clkrate = omap2xxx_clk_get_core_rate(&dpll_ck);
for (prcm = rate_table; prcm->mpu_speed; prcm++) {
if (!(prcm->flags & cpu_mask))
continue;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-24 08:08:55 +0000