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ARM: BeagleBoard-x15: Enable i2c5 clocks

PATCH In review Lokesh Vutla 2 participants 4 messages Jun 5, 2015 – Jun 13, 2015 Arm (32-bit)

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Lokesh Vutla

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#0 lore raw

PATCH 1/1 ARM: BeagleBoard-x15: Enable i2c5 clocks

On AM57xx evm I2C5 is used to detect the LCD board by reading the EEPROM present on the bus.
Enable i2c5 clocks to help that.

Signed-off-by Lokesh Vutla <[email protected]>
---
 arch/arm/cpu/armv7/omap5/hw_data.c   | 7 +++++++
 arch/arm/cpu/armv7/omap5/prcm-regs.c | 4 ++++
 arch/arm/include/asm/omap_common.h   | 4 ++++
 3 files changed, 15 insertions(+)
arch/arm/cpu/armv7/omap5/hw_data.c +7 -0
index 868415d..53e87b2 100644
@@ -534,6 +534,9 @@ void enable_basic_clocks(void)
 void enable_basic_uboot_clocks(void)
 {
 	u32 const clk_domains_essential[] = {
+#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
+		(*prcm)->cm_ipu_clkstctrl,
+#endif
 		0
 	};
 

@@ -547,7 +550,11 @@ void enable_basic_uboot_clocks(void)
 		(*prcm)->cm_l4per_i2c2_clkctrl,
 		(*prcm)->cm_l4per_i2c3_clkctrl,
 		(*prcm)->cm_l4per_i2c4_clkctrl,
+#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
+		(*prcm)->cm_ipu_i2c5_clkctrl,
+#else
 		(*prcm)->cm_l4per_i2c5_clkctrl,
+#endif
 		(*prcm)->cm_l3init_hsusbhost_clkctrl,
 		(*prcm)->cm_l3init_fsusb_clkctrl,
 		0
arch/arm/cpu/armv7/omap5/prcm-regs.c +4 -0
index f80d36d..a87003c 100644
@@ -815,6 +815,10 @@ struct prcm_regs const dra7xx_prcm = {
 	.cm_dsp_clkstctrl			= 0x4a005400,
 	.cm_dsp_dsp_clkctrl			= 0x4a005420,
 
+	/* cm IPU */
+	.cm_ipu_clkstctrl			= 0x4a005540,
+	.cm_ipu_i2c5_clkctrl			= 0x4a005578,
+
 	/* prm irqstatus regs */
 	.prm_irqstatus_mpu_2			= 0x4ae06014,
arch/arm/include/asm/omap_common.h +4 -0
index b0296fb..a1278fb 100644
@@ -344,6 +344,10 @@ struct prcm_regs {
 	/* GMAC Clk Ctrl */
 	u32 cm_gmac_gmac_clkctrl;
 	u32 cm_gmac_clkstctrl;
+
+	/* IPU */
+	u32 cm_ipu_clkstctrl;
+	u32 cm_ipu_i2c5_clkctrl;
 };
 
 struct omap_sys_ctrl_regs {
Signature · 1 line
1.9.1
#1 lore raw

PATCH 1/1 ARM: BeagleBoard-x15: Enable i2c5 clocks

Quoted 5 lines · Lokesh Vutla

On AM57xx evm I2C5 is used to detect the LCD board by reading the EEPROM present on the bus.
Enable i2c5 clocks to help that.

Signed-off-by Lokesh Vutla <[email protected]>

Sigh, and we need to figure out which LCD we have to know which DT to pass to the kernel so there'll be another patch soon that does this, yes? Thanks!

Reviewed-by Tom Rini <[email protected]>
Signature · 8 lines
Tom
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author
#2 lore raw

PATCH 1/1 ARM: BeagleBoard-x15: Enable i2c5 clocks

Quoted 7 lines · Tom Rini
Quoted 4 lines · Lokesh Vutla

On AM57xx evm I2C5 is used to detect the LCD board by reading the EEPROM present on the bus.
Enable i2c5 clocks to help that.

Quoted 5 lines
Quoted 1 line
Signed-off-by Lokesh Vutla <[email protected]>

Sigh, and we need to figure out which LCD we have to know which DT to pass to the kernel so there'll be another patch soon that does this, yes? Thanks!

Yes, I have the patches ready. Ill be posting once verified.

Thanks and regards,
Lokesh

Quoted 3 lines
Reviewed-by Tom Rini <[email protected]>
#3 lore raw
In reply to Lokesh Vutla
Quoted 6 lines · Lokesh Vutla

On AM57xx evm I2C5 is used to detect the LCD board by reading the EEPROM present on the bus.
Enable i2c5 clocks to help that.

Signed-off-by Lokesh Vutla <[email protected]>
Reviewed-by Tom Rini <[email protected]>

Applied to u-boot/master, thanks!

Signature · 8 lines
Tom
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