[U-Boot] [PATCH 04/11] snowball: Adding CPU clock initialisation
From: Mathieu J. Poirier mathieu.poir...@linaro.org
Signed-off-by: Mathieu Poirier mathieu.poir...@linaro.org
Signed-off-by: John Rigby john.ri...@linaro.org
---
arch/arm/cpu/armv7/u8500/clock.c| 34 +++
arch/arm/cpu/armv7/u8500/cpu.c |2 +
arch/arm/include/asm/arch-u8500/clock.h |5 +---
3 files changed, 37 insertions(+), 4 deletions(-)
diff --git a/arch/arm/cpu/armv7/u8500/clock.c b/arch/arm/cpu/armv7/u8500/clock.c
index 9e3b873..fcfd61a 100644
--- a/arch/arm/cpu/armv7/u8500/clock.c
+++ b/arch/arm/cpu/armv7/u8500/clock.c
@@ -54,3 +54,37 @@ void u8500_clock_enable(int periph, int cluster, int kern)
if (cluster != -1)
writel(1 cluster, clkrst-pcken);
}
+
+void db8500_clocks_init(void)
+{
+ /*
+* Enable all clocks. This is u-boot, we can enable it all. There is no
+* powersave in u-boot.
+*/
+
+ u8500_clock_enable(1, 9, -1); /* GPIO0 */
+ u8500_clock_enable(2, 11, -1);/* GPIO1 */
+ u8500_clock_enable(3, 8, -1); /* GPIO2 */
+ u8500_clock_enable(5, 1, -1); /* GPIO3 */
+ u8500_clock_enable(3, 6, 6); /* UART2 */
+ u8500_clock_enable(3, 3, 3); /* I2C0 */
+ u8500_clock_enable(1, 5, 5); /* SDI0 */
+ u8500_clock_enable(2, 4, 2); /* SDI4 */
+ u8500_clock_enable(6, 6, -1); /* MTU0 */
+ u8500_clock_enable(3, 4, 4); /* SDI2 */
+
+ /*
+* Enabling clocks for all devices which are AMBA devices in the
+* kernel. Otherwise they will not get probe()'d because the
+* peripheral ID register will not be powered.
+*/
+
+ /* XXX: some of these differ between ED/V1 */
+
+ u8500_clock_enable(1, 1, 1); /* UART1 */
+ u8500_clock_enable(1, 0, 0); /* UART0 */
+ u8500_clock_enable(3, 2, 2); /* SSP1 */
+ u8500_clock_enable(3, 1, 1); /* SSP0 */
+ u8500_clock_enable(2, 8, -1); /* SPI0 */
+ u8500_clock_enable(2, 5, 3); /* MSP2 */
+}
diff --git a/arch/arm/cpu/armv7/u8500/cpu.c b/arch/arm/cpu/armv7/u8500/cpu.c
index 04f4b19..fece201 100644
--- a/arch/arm/cpu/armv7/u8500/cpu.c
+++ b/arch/arm/cpu/armv7/u8500/cpu.c
@@ -27,6 +27,7 @@
#include common.h
#include asm/io.h
#include asm/arch/prcmu.h
+#include asm/arch/clock.h
#ifdef CONFIG_ARCH_CPU_INIT
/*
@@ -35,6 +36,7 @@
int arch_cpu_init(void)
{
db8500_prcmu_init();
+ db8500_clocks_init();
return 0;
}
diff --git a/arch/arm/include/asm/arch-u8500/clock.h
b/arch/arm/include/asm/arch-u8500/clock.h
index b00ab0d..2a14784 100644
--- a/arch/arm/include/asm/arch-u8500/clock.h
+++ b/arch/arm/include/asm/arch-u8500/clock.h
@@ -64,9 +64,6 @@ struct prcmu {
extern void u8500_clock_enable(int periph, int kern, int cluster);
-static inline void u8500_prcmu_enable(unsigned int *reg)
-{
- writel(readl(reg) | (1 8), reg);
-}
+void db8500_clocks_init(void);
#endif /* __ASM_ARCH_CLOCK */
--
1.7.5.4
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[U-Boot] [PATCH 04/11] snowball: Adding CPU clock initialisation
From: Mathieu J. Poirier mathieu.poir...@linaro.org
Signed-off-by: Mathieu Poirier mathieu.poir...@linaro.org
Signed-off-by: John Rigby john.ri...@linaro.org
---
arch/arm/cpu/armv7/u8500/clock.c| 34 +++
arch/arm/cpu/armv7/u8500/cpu.c |2 +
arch/arm/include/asm/arch-u8500/clock.h |5 +---
3 files changed, 37 insertions(+), 4 deletions(-)
diff --git a/arch/arm/cpu/armv7/u8500/clock.c b/arch/arm/cpu/armv7/u8500/clock.c
index 9e3b873..fcfd61a 100644
--- a/arch/arm/cpu/armv7/u8500/clock.c
+++ b/arch/arm/cpu/armv7/u8500/clock.c
@@ -54,3 +54,37 @@ void u8500_clock_enable(int periph, int cluster, int kern)
if (cluster != -1)
writel(1 cluster, clkrst-pcken);
}
+
+void db8500_clocks_init(void)
+{
+ /*
+* Enable all clocks. This is u-boot, we can enable it all. There is no
+* powersave in u-boot.
+*/
+
+ u8500_clock_enable(1, 9, -1); /* GPIO0 */
+ u8500_clock_enable(2, 11, -1);/* GPIO1 */
+ u8500_clock_enable(3, 8, -1); /* GPIO2 */
+ u8500_clock_enable(5, 1, -1); /* GPIO3 */
+ u8500_clock_enable(3, 6, 6); /* UART2 */
+ u8500_clock_enable(3, 3, 3); /* I2C0 */
+ u8500_clock_enable(1, 5, 5); /* SDI0 */
+ u8500_clock_enable(2, 4, 2); /* SDI4 */
+ u8500_clock_enable(6, 6, -1); /* MTU0 */
+ u8500_clock_enable(3, 4, 4); /* SDI2 */
+
+ /*
+* Enabling clocks for all devices which are AMBA devices in the
+* kernel. Otherwise they will not get probe()'d because the
+* peripheral ID register will not be powered.
+*/
+
+ /* XXX: some of these differ between ED/V1 */
+
+ u8500_clock_enable(1, 1, 1); /* UART1 */
+ u8500_clock_enable(1, 0, 0); /* UART0 */
+ u8500_clock_enable(3, 2, 2); /* SSP1 */
+ u8500_clock_enable(3, 1, 1); /* SSP0 */
+ u8500_clock_enable(2, 8, -1); /* SPI0 */
+ u8500_clock_enable(2, 5, 3); /* MSP2 */
+}
diff --git a/arch/arm/cpu/armv7/u8500/cpu.c b/arch/arm/cpu/armv7/u8500/cpu.c
index 04f4b19..fece201 100644
--- a/arch/arm/cpu/armv7/u8500/cpu.c
+++ b/arch/arm/cpu/armv7/u8500/cpu.c
@@ -27,6 +27,7 @@
#include common.h
#include asm/io.h
#include asm/arch/prcmu.h
+#include asm/arch/clock.h
#ifdef CONFIG_ARCH_CPU_INIT
/*
@@ -35,6 +36,7 @@
int arch_cpu_init(void)
{
db8500_prcmu_init();
+ db8500_clocks_init();
return 0;
}
diff --git a/arch/arm/include/asm/arch-u8500/clock.h
b/arch/arm/include/asm/arch-u8500/clock.h
index b00ab0d..2a14784 100644
--- a/arch/arm/include/asm/arch-u8500/clock.h
+++ b/arch/arm/include/asm/arch-u8500/clock.h
@@ -64,9 +64,6 @@ struct prcmu {
extern void u8500_clock_enable(int periph, int kern, int cluster);
-static inline void u8500_prcmu_enable(unsigned int *reg)
-{
- writel(readl(reg) | (1 8), reg);
-}
+void db8500_clocks_init(void);
#endif /* __ASM_ARCH_CLOCK */
--
1.7.5.4
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[U-Boot] [PATCH 04/11] snowball: Adding CPU clock initialisation
From: Mathieu J. Poirier mathieu.poir...@linaro.org
Signed-off-by: Mathieu Poirier mathieu.poir...@linaro.org
Signed-off-by: John Rigby john.ri...@linaro.org
---
arch/arm/cpu/armv7/u8500/clock.c| 34 +++
arch/arm/cpu/armv7/u8500/cpu.c |2 +
arch/arm/include/asm/arch-u8500/clock.h |5 +---
3 files changed, 37 insertions(+), 4 deletions(-)
diff --git a/arch/arm/cpu/armv7/u8500/clock.c b/arch/arm/cpu/armv7/u8500/clock.c
index 9e3b873..fcfd61a 100644
--- a/arch/arm/cpu/armv7/u8500/clock.c
+++ b/arch/arm/cpu/armv7/u8500/clock.c
@@ -54,3 +54,37 @@ void u8500_clock_enable(int periph, int cluster, int kern)
if (cluster != -1)
writel(1 cluster, clkrst-pcken);
}
+
+void db8500_clocks_init(void)
+{
+ /*
+* Enable all clocks. This is u-boot, we can enable it all. There is no
+* powersave in u-boot.
+*/
+
+ u8500_clock_enable(1, 9, -1); /* GPIO0 */
+ u8500_clock_enable(2, 11, -1);/* GPIO1 */
+ u8500_clock_enable(3, 8, -1); /* GPIO2 */
+ u8500_clock_enable(5, 1, -1); /* GPIO3 */
+ u8500_clock_enable(3, 6, 6); /* UART2 */
+ u8500_clock_enable(3, 3, 3); /* I2C0 */
+ u8500_clock_enable(1, 5, 5); /* SDI0 */
+ u8500_clock_enable(2, 4, 2); /* SDI4 */
+ u8500_clock_enable(6, 6, -1); /* MTU0 */
+ u8500_clock_enable(3, 4, 4); /* SDI2 */
+
+ /*
+* Enabling clocks for all devices which are AMBA devices in the
+* kernel. Otherwise they will not get probe()'d because the
+* peripheral ID register will not be powered.
+*/
+
+ /* XXX: some of these differ between ED/V1 */
+
+ u8500_clock_enable(1, 1, 1); /* UART1 */
+ u8500_clock_enable(1, 0, 0); /* UART0 */
+ u8500_clock_enable(3, 2, 2); /* SSP1 */
+ u8500_clock_enable(3, 1, 1); /* SSP0 */
+ u8500_clock_enable(2, 8, -1); /* SPI0 */
+ u8500_clock_enable(2, 5, 3); /* MSP2 */
+}
diff --git a/arch/arm/cpu/armv7/u8500/cpu.c b/arch/arm/cpu/armv7/u8500/cpu.c
index 04f4b19..fece201 100644
--- a/arch/arm/cpu/armv7/u8500/cpu.c
+++ b/arch/arm/cpu/armv7/u8500/cpu.c
@@ -27,6 +27,7 @@
#include common.h
#include asm/io.h
#include asm/arch/prcmu.h
+#include asm/arch/clock.h
#ifdef CONFIG_ARCH_CPU_INIT
/*
@@ -35,6 +36,7 @@
int arch_cpu_init(void)
{
db8500_prcmu_init();
+ db8500_clocks_init();
return 0;
}
diff --git a/arch/arm/include/asm/arch-u8500/clock.h
b/arch/arm/include/asm/arch-u8500/clock.h
index b00ab0d..2a14784 100644
--- a/arch/arm/include/asm/arch-u8500/clock.h
+++ b/arch/arm/include/asm/arch-u8500/clock.h
@@ -64,9 +64,6 @@ struct prcmu {
extern void u8500_clock_enable(int periph, int kern, int cluster);
-static inline void u8500_prcmu_enable(unsigned int *reg)
-{
- writel(readl(reg) | (1 8), reg);
-}
+void db8500_clocks_init(void);
#endif /* __ASM_ARCH_CLOCK */
--
1.7.5.4
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