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Subject[PATCH V2 56/69] ST SPEAr Clock Framework: Updating for single image solution
Date
This patch creates different clk_lookup arrays for individual machines.
These lookup arrays will be registered only if that specific machine is
current machine.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
---
arch/arm/mach-spear13xx/clock.c | 29 ++++++++++--
arch/arm/mach-spear3xx/clock.c | 75 +++++++++++++++++++-----------
arch/arm/mach-spear6xx/clock.c | 8 +++-
arch/arm/plat-spear/clock.c | 8 +---
arch/arm/plat-spear/include/plat/clock.h | 2 +-
5 files changed, 82 insertions(+), 40 deletions(-)
diff --git a/arch/arm/mach-spear13xx/clock.c b/arch/arm/mach-spear13xx/clock.c
index 75cd89c..0755e9f 100644
--- a/arch/arm/mach-spear13xx/clock.c
+++ b/arch/arm/mach-spear13xx/clock.c
@@ -1117,13 +1117,17 @@ static struct clk_lookup spear_clk_lookups[] = {
{.dev_id = "gpio1", .clk = &gpio1_clk},
{.dev_id = "keyboard", .clk = &kbd_clk},
{.dev_id = "wdt", .clk = &wdt_clk},
+};

- /* spear1300 machine specific clock structures */
+/* array of all spear 1300 clock lookups */
#ifdef CONFIG_MACH_SPEAR1300
+static struct clk_lookup spear1300_clk_lookups[] = {
+};
#endif

- /* spear1310 machine specific clock structures */
+/* array of all spear 1310 clock lookups */
#ifdef CONFIG_MACH_SPEAR1310
+static struct clk_lookup spear1310_clk_lookups[] = {
{.dev_id = "spear_can.0", .clk = &can0_clk},
{.dev_id = "spear_can.1", .clk = &can1_clk},
{.dev_id = "stmmaceth.1", .clk = &gmac_ras1_clk},
@@ -1134,11 +1138,28 @@ static struct clk_lookup spear_clk_lookups[] = {
{.dev_id = "stmmacphy.2", .clk = &gmac_phy2_clk},
{.dev_id = "stmmacphy.3", .clk = &gmac_phy3_clk},
{.dev_id = "stmmacphy.4", .clk = &gmac_phy4_clk},
-#endif
};
+#endif

/* machine clk init */
void __init spear13xx_clk_init(void)
{
- clk_init(spear_clk_lookups, ARRAY_SIZE(spear_clk_lookups), &ddr_clk);
+ int i, cnt;
+ struct clk_lookup *lookups;
+
+ if (machine_is_spear1300()) {
+ cnt = ARRAY_SIZE(spear1300_clk_lookups);
+ lookups = spear1300_clk_lookups;
+ } else {
+ cnt = ARRAY_SIZE(spear1310_clk_lookups);
+ lookups = spear1310_clk_lookups;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++)
+ clk_register(&spear_clk_lookups[i]);
+
+ for (i = 0; i < cnt; i++)
+ clk_register(&lookups[i]);
+
+ clk_init(&ddr_clk);
}
diff --git a/arch/arm/mach-spear3xx/clock.c b/arch/arm/mach-spear3xx/clock.c
index 814966a..ec34e50 100644
--- a/arch/arm/mach-spear3xx/clock.c
+++ b/arch/arm/mach-spear3xx/clock.c
@@ -13,6 +13,7 @@

#include <linux/init.h>
#include <linux/kernel.h>
+#include <asm/mach-types.h>
#include <mach/misc_regs.h>
#include <plat/clock.h>

@@ -754,52 +755,72 @@ static struct clk_lookup spear_clk_lookups[] = {
{ .dev_id = "adc", .clk = &adc_clk},
{ .dev_id = "ssp-pl022.0", .clk = &ssp0_clk},
{ .dev_id = "gpio", .clk = &gpio_clk},
-#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320)
- { .dev_id = "emi", .clk = &emi_clk},
-#endif
-#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR310) || \
- defined(CONFIG_MACH_SPEAR320)
- { .con_id = "fsmc", .clk = &fsmc_clk},
-#endif
-
-/* common clocks to spear310 and spear320 */
-#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320)
- { .dev_id = "uart1", .clk = &uart1_clk},
- { .dev_id = "uart2", .clk = &uart2_clk},
-#endif
-
- /* common clock to spear300 and spear320 */
-#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR320)
- { .dev_id = "clcd", .clk = &clcd_clk},
- { .dev_id = "sdhci", .clk = &sdhci_clk},
-#endif /* CONFIG_MACH_SPEAR300 || CONFIG_MACH_SPEAR320 */
+};

- /* spear300 machine specific clock structures */
+/* array of all spear 300 clock lookups */
#ifdef CONFIG_MACH_SPEAR300
+static struct clk_lookup spear300_clk_lookups[] = {
+ { .dev_id = "clcd", .clk = &clcd_clk},
+ { .con_id = "fsmc", .clk = &fsmc_clk},
{ .dev_id = "gpio1", .clk = &gpio1_clk},
{ .dev_id = "keyboard", .clk = &kbd_clk},
+ { .dev_id = "sdhci", .clk = &sdhci_clk},
+};
#endif

- /* spear310 machine specific clock structures */
+/* array of all spear 310 clock lookups */
#ifdef CONFIG_MACH_SPEAR310
+static struct clk_lookup spear310_clk_lookups[] = {
+ { .con_id = "fsmc", .clk = &fsmc_clk},
+ { .dev_id = "emi", .clk = &emi_clk},
+ { .dev_id = "uart1", .clk = &uart1_clk},
+ { .dev_id = "uart2", .clk = &uart2_clk},
{ .dev_id = "uart3", .clk = &uart3_clk},
{ .dev_id = "uart4", .clk = &uart4_clk},
{ .dev_id = "uart5", .clk = &uart5_clk},
-
+};
#endif
- /* spear320 machine specific clock structures */
+
+/* array of all spear 320 clock lookups */
#ifdef CONFIG_MACH_SPEAR320
+static struct clk_lookup spear320_clk_lookups[] = {
+ { .dev_id = "clcd", .clk = &clcd_clk},
+ { .con_id = "fsmc", .clk = &fsmc_clk},
+ { .dev_id = "i2c_designware.1", .clk = &i2c1_clk},
+ { .dev_id = "emi", .clk = &emi_clk},
+ { .dev_id = "pwm", .clk = &pwm_clk},
+ { .dev_id = "sdhci", .clk = &sdhci_clk},
{ .dev_id = "spear_can.0", .clk = &can0_clk},
{ .dev_id = "spear_can.1", .clk = &can1_clk},
- { .dev_id = "i2c_designware.1", .clk = &i2c1_clk},
{ .dev_id = "ssp-pl022.1", .clk = &ssp1_clk},
{ .dev_id = "ssp-pl022.2", .clk = &ssp2_clk},
- { .dev_id = "pwm", .clk = &pwm_clk},
-#endif
+ { .dev_id = "uart1", .clk = &uart1_clk},
+ { .dev_id = "uart2", .clk = &uart2_clk},
};
+#endif

/* machine clk init */
void __init spear3xx_clk_init(void)
{
- clk_init(spear_clk_lookups, ARRAY_SIZE(spear_clk_lookups), &ddr_clk);
+ int i, cnt;
+ struct clk_lookup *lookups;
+
+ if (machine_is_spear300()) {
+ cnt = ARRAY_SIZE(spear300_clk_lookups);
+ lookups = spear300_clk_lookups;
+ } else if (machine_is_spear310()) {
+ cnt = ARRAY_SIZE(spear310_clk_lookups);
+ lookups = spear310_clk_lookups;
+ } else {
+ cnt = ARRAY_SIZE(spear320_clk_lookups);
+ lookups = spear320_clk_lookups;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++)
+ clk_register(&spear_clk_lookups[i]);
+
+ for (i = 0; i < cnt; i++)
+ clk_register(&lookups[i]);
+
+ clk_init(&ddr_clk);
}
diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c
index 63aab69..fefbb1e 100644
--- a/arch/arm/mach-spear6xx/clock.c
+++ b/arch/arm/mach-spear6xx/clock.c
@@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <mach/misc_regs.h>
+#include <asm/mach-types.h>
#include <plat/clock.h>

/* root clks */
@@ -740,5 +741,10 @@ static struct clk_lookup spear_clk_lookups[] = {
/* machine clk init */
void __init spear6xx_clk_init(void)
{
- clk_init(spear_clk_lookups, ARRAY_SIZE(spear_clk_lookups), &ddr_clk);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++)
+ clk_register(&spear_clk_lookups[i]);
+
+ clk_init(&ddr_clk);
}
diff --git a/arch/arm/plat-spear/clock.c b/arch/arm/plat-spear/clock.c
index ee8f82b..2043c34 100644
--- a/arch/arm/plat-spear/clock.c
+++ b/arch/arm/plat-spear/clock.c
@@ -949,14 +949,8 @@ void recalc_root_clocks(void)
spin_unlock_irqrestore(&clocks_lock, flags);
}

-void __init
-clk_init(struct clk_lookup *clk_lookups, u32 count, struct clk *dclk)
+void __init clk_init(struct clk *dclk)
{
- int i;
-
- for (i = 0; i < count; i++)
- clk_register(&clk_lookups[i]);
-
recalc_root_clocks();

/* Mark all ancestors of DDR with special flag */
diff --git a/arch/arm/plat-spear/include/plat/clock.h b/arch/arm/plat-spear/include/plat/clock.h
index 00d6854..13ad461 100644
--- a/arch/arm/plat-spear/include/plat/clock.h
+++ b/arch/arm/plat-spear/include/plat/clock.h
@@ -241,7 +241,7 @@ struct ddr_rate_tbl {
* Actually before changing rate of DDRs ancestor, we must put ddr in refresh
* state and then change parent.
*/
-void clk_init(struct clk_lookup *clk_lookups, u32 count, struct clk *dclk);
+void clk_init(struct clk *dclk);
void clk_register(struct clk_lookup *cl);
void recalc_root_clocks(void);

--
1.7.2.2


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