OMAP3 clock: introduce DPLL4 Jtype
DPLL4 for 3630 introduces a changed block called j type dpll, requiring
special divisor bits and additional reg fields. To allow for silicons to
use this, this is introduced as a flag and is enabled for 3630 silicon.
OMAP4 also has j type dpll for usb.
Tested with 3630 ZOOM3 and OMAP3430 ZOOM2
Signed-off-by: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Vishwanath BS <Vishwanath.bs@ti.com>
[paul@pwsan.com: added some comments; updated copyrights and credits; fixed
some style issues]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/clock34xx_data.c b/arch/arm/mach-omap2/clock34xx_data.c
index 8bb8134..60c6140 100644
--- a/arch/arm/mach-omap2/clock34xx_data.c
+++ b/arch/arm/mach-omap2/clock34xx_data.c
@@ -38,6 +38,7 @@
/* Maximum DPLL multiplier, divider values for OMAP3 */
#define OMAP3_MAX_DPLL_MULT 2048
+#define OMAP3630_MAX_JTYPE_DPLL_MULT 4095
#define OMAP3_MAX_DPLL_DIV 128
/*
@@ -529,7 +530,8 @@
/* DPLL4 */
/* Supplies 96MHz, 54Mhz TV DAC, DSS fclk, CAM sensor clock, emul trace clk */
/* Type: DPLL */
-static struct dpll_data dpll4_dd = {
+static struct dpll_data dpll4_dd;
+static struct dpll_data dpll4_dd_34xx __initdata = {
.mult_div1_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL2),
.mult_mask = OMAP3430_PERIPH_DPLL_MULT_MASK,
.div1_mask = OMAP3430_PERIPH_DPLL_DIV_MASK,
@@ -552,6 +554,29 @@
.rate_tolerance = DEFAULT_DPLL_RATE_TOLERANCE
};
+static struct dpll_data dpll4_dd_3630 __initdata = {
+ .mult_div1_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL2),
+ .mult_mask = OMAP3630_PERIPH_DPLL_MULT_MASK,
+ .div1_mask = OMAP3430_PERIPH_DPLL_DIV_MASK,
+ .clk_bypass = &sys_ck,
+ .clk_ref = &sys_ck,
+ .control_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
+ .enable_mask = OMAP3430_EN_PERIPH_DPLL_MASK,
+ .modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
+ .auto_recal_bit = OMAP3430_EN_PERIPH_DPLL_DRIFTGUARD_SHIFT,
+ .recal_en_bit = OMAP3430_PERIPH_DPLL_RECAL_EN_SHIFT,
+ .recal_st_bit = OMAP3430_PERIPH_DPLL_ST_SHIFT,
+ .autoidle_reg = OMAP_CM_REGADDR(PLL_MOD, CM_AUTOIDLE),
+ .autoidle_mask = OMAP3430_AUTO_PERIPH_DPLL_MASK,
+ .idlest_reg = OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST),
+ .idlest_mask = OMAP3430_ST_PERIPH_CLK_MASK,
+ .max_multiplier = OMAP3630_MAX_JTYPE_DPLL_MULT,
+ .min_divider = 1,
+ .max_divider = OMAP3_MAX_DPLL_DIV,
+ .rate_tolerance = DEFAULT_DPLL_RATE_TOLERANCE,
+ .flags = DPLL_J_TYPE
+};
+
static struct clk dpll4_ck = {
.name = "dpll4_ck",
.ops = &omap3_clkops_noncore_dpll_ops,
@@ -3377,6 +3402,11 @@
&clkops_omap36xx_pwrdn_with_hsdiv_wait_restore;
}
+ if (cpu_is_omap3630())
+ dpll4_dd = dpll4_dd_3630;
+ else
+ dpll4_dd = dpll4_dd_34xx;
+
clk_init(&omap2_clk_functions);
for (c = omap3xxx_clks; c < omap3xxx_clks + ARRAY_SIZE(omap3xxx_clks); c++)