ARM: 6927/1: SPEAr Clock: Update for single image solution

This patch creates different clk_lookup arrays for individual machines.
These lookup arrays will be registered only if that specific machine is
current machine.

Reviewed-by: Stanley Miao <stanley.miao@windriver.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 43 insertions, 27 deletions

diff --git a/arch/arm/mach-spear3xx/clock.c b/arch/arm/mach-spear3xx/clock.c
index 5707772d51f7..f67860cd649f 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 <plat/clock.h>
 #include <mach/misc_regs.h>
 
@@ -688,56 +689,71 @@ 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 = "physmap-flash",    .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},
+        { .con_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},
+        { .con_id = "emi",              .clk = &emi_clk},
+        { .dev_id = "pwm",              .clk = &pwm_clk},
+        { .dev_id = "sdhci",            .clk = &sdhci_clk},
         { .dev_id = "c_can_platform.0", .clk = &can0_clk},
         { .dev_id = "c_can_platform.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
 
 void __init spear3xx_clk_init(void)
 {
-        int i;
+        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();
 }