diff mbox

[v2,4/6] OMAP4: clocks: Update the clock tree with 4460 clock nodes

Message ID 1309573826-10615-5-git-send-email-rnayak@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Rajendra Nayak July 2, 2011, 2:30 a.m. UTC 
Add the new clock nodes (bandgap_ts_fclk, div_ts_ck) for omap4460.
Handle these nodes using the clock flags (CK_*).

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
---
 arch/arm/mach-omap2/clock44xx_data.c          |   39 +++++++++++++++++++++++++
 arch/arm/plat-omap/include/plat/clkdev_omap.h |    2 +-
 arch/arm/plat-omap/include/plat/clock.h       |    3 +-
 3 files changed, 42 insertions(+), 2 deletions(-)

Comments

Paul Walmsley July 8, 2011, 6:49 a.m. UTC | #1 
On Sat, 2 Jul 2011, Rajendra Nayak wrote:

> Add the new clock nodes (bandgap_ts_fclk, div_ts_ck) for omap4460.
> Handle these nodes using the clock flags (CK_*).
> 
> Signed-off-by: Rajendra Nayak <rnayak@ti.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> Signed-off-by: Benoit Cousson <b-cousson@ti.com>
> Reviewed-by: Kevin Hilman <khilman@ti.com>

Is this data coming from autogenerator scripts that have been checked into 
that repository, or have these been hand-edited?

Also, this isn't the complete set of clock changes needed for full 4460 
support, right?  I'm thinking of the duty cycle correction changes 
described in TRM 3.6.3.7.2 "Tactical Clocking Adjustment".  
Are those planned to go into a future patch?


- Paul
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Rajendra Nayak July 8, 2011, 7:09 a.m. UTC | #2 
On 7/7/2011 11:49 PM, Paul Walmsley wrote:
> On Sat, 2 Jul 2011, Rajendra Nayak wrote:
>
>> Add the new clock nodes (bandgap_ts_fclk, div_ts_ck) for omap4460.
>> Handle these nodes using the clock flags (CK_*).
>>
>> Signed-off-by: Rajendra Nayak<rnayak@ti.com>
>> Signed-off-by: Nishanth Menon<nm@ti.com>
>> Signed-off-by: Benoit Cousson<b-cousson@ti.com>
>> Reviewed-by: Kevin Hilman<khilman@ti.com>
>
> Is this data coming from autogenerator scripts that have been checked into
> that repository, or have these been hand-edited?

They have been hand edited to create a diff from the 4430 autogen output
and 4460 autogen output.

>
> Also, this isn't the complete set of clock changes needed for full 4460
> support, right?  I'm thinking of the duty cycle correction changes
> described in TRM 3.6.3.7.2 "Tactical Clocking Adjustment".
> Are those planned to go into a future patch?

Yes, this series was targeted at providing basic boot support. I was
planning to add the DCC changes as part of the next series.

regards,
Rajendra
>
>
> - Paul

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diff mbox

Patch

diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 9372d01..88db00f 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -1287,6 +1287,40 @@  static struct clk dss_fck = {
 	.recalc		= &followparent_recalc,
 };
 
+static const struct clksel_rate div3_8to32_rates[] = {
+	{ .div = 8, .val = 0, .flags = RATE_IN_44XX },
+	{ .div = 16, .val = 1, .flags = RATE_IN_44XX },
+	{ .div = 32, .val = 2, .flags = RATE_IN_44XX },
+	{ .div = 0 },
+};
+
+static const struct clksel div_ts_div[] = {
+	{ .parent = &l4_wkup_clk_mux_ck, .rates = div3_8to32_rates },
+	{ .parent = NULL },
+};
+
+static struct clk div_ts_ck = {
+	.name		= "div_ts_ck",
+	.parent		= &l4_wkup_clk_mux_ck,
+	.clksel		= div_ts_div,
+	.clksel_reg	= OMAP4430_CM_WKUP_BANDGAP_CLKCTRL,
+	.clksel_mask	= OMAP4430_CLKSEL_24_25_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk bandgap_ts_fclk = {
+	.name		= "bandgap_ts_fclk",
+	.ops		= &clkops_omap2_dflt,
+	.enable_reg	= OMAP4430_CM_WKUP_BANDGAP_CLKCTRL,
+	.enable_bit	= OMAP4460_OPTFCLKEN_TS_FCLK_SHIFT,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.parent		= &div_ts_ck,
+	.recalc		= &followparent_recalc,
+};
+
 static struct clk dss_48mhz_clk = {
 	.name		= "dss_48mhz_clk",
 	.parent		= &func_48mc_fclk,
@@ -2507,6 +2541,7 @@  static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"pmd_trace_clk_mux_ck",		&pmd_trace_clk_mux_ck,	CK_44XX),
 	CLK(NULL,	"syc_clk_div_ck",		&syc_clk_div_ck,	CK_44XX),
 	CLK(NULL,	"bandgap_fclk",			&bandgap_fclk,	CK_44XX),
+	CLK(NULL,	"bandgap_ts_fclk",		&bandgap_ts_fclk,	CK_446X),
 	CLK("omapdss_dss",	"sys_clk",		&dss_sys_clk,	CK_44XX),
 	CLK("omapdss_dss",	"tv_clk",		&dss_tv_clk,	CK_44XX),
 	CLK("omapdss_dss",	"fck",			&dss_dss_clk,	CK_44XX),
@@ -2552,6 +2587,7 @@  static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"cm2_dm3_mux_ck",		&cm2_dm3_mux_ck,	CK_44XX),
 	CLK(NULL,	"cm2_dm4_mux_ck",		&cm2_dm4_mux_ck,	CK_44XX),
 	CLK(NULL,	"cm2_dm9_mux_ck",		&cm2_dm9_mux_ck,	CK_44XX),
+	CLK(NULL,	"div_ts_ck",			&div_ts_ck,	CK_446X),
 	CLK(NULL,	"dmic_sync_mux_ck",		&dmic_sync_mux_ck,	CK_44XX),
 	CLK(NULL,	"gpt1_fck",			&timer1_fck,	CK_44XX),
 	CLK(NULL,	"fdif_fclk",			&fdif_fclk,	CK_44XX),
@@ -2641,6 +2677,9 @@  int __init omap4xxx_clk_init(void)
 	if (cpu_is_omap443x()) {
 		cpu_mask = RATE_IN_4430;
 		cpu_clkflg = CK_443X;
+	} else if (cpu_is_omap446x()) {
+		cpu_mask = RATE_IN_4460;
+		cpu_clkflg = CK_446X;
 	}
 
 	clk_init(&omap2_clk_functions);
diff --git a/arch/arm/plat-omap/include/plat/clkdev_omap.h b/arch/arm/plat-omap/include/plat/clkdev_omap.h
index 4609a3f..324446b 100644
--- a/arch/arm/plat-omap/include/plat/clkdev_omap.h
+++ b/arch/arm/plat-omap/include/plat/clkdev_omap.h
@@ -45,7 +45,7 @@  struct omap_clk {
 #define CK_34XX		(CK_3430ES1 | CK_3430ES2PLUS)
 #define CK_AM35XX	(CK_3505 | CK_3517)	/* all Sitara AM35xx */
 #define CK_3XXX		(CK_34XX | CK_AM35XX | CK_36XX)
-#define CK_44XX		(CK_443X)
+#define CK_44XX		(CK_443X | CK_446X)
 
 
 #endif
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 10349fe..df4b968 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -58,11 +58,12 @@  struct clkops {
 #define RATE_IN_36XX		(1 << 4)
 #define RATE_IN_4430		(1 << 5)
 #define RATE_IN_TI816X		(1 << 6)
+#define RATE_IN_4460		(1 << 7)
 
 #define RATE_IN_24XX		(RATE_IN_242X | RATE_IN_243X)
 #define RATE_IN_34XX		(RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS)
 #define RATE_IN_3XXX		(RATE_IN_34XX | RATE_IN_36XX)
-#define RATE_IN_44XX		(RATE_IN_4430)
+#define RATE_IN_44XX		(RATE_IN_4430 | RATE_IN_4460)
 
 /* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */
 #define RATE_IN_3430ES2PLUS_36XX	(RATE_IN_3430ES2PLUS | RATE_IN_36XX)