[U-Boot] [PATCH] ARM: BeagleBoard-x15: Enable i2c5 clocks

Lokesh Vutla lokeshvutla at ti.com
Fri Jun 5 11:49:21 CEST 2015


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 <lokeshvutla at ti.com>
---
 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(+)

diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 868415d..53e87b2 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -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
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index f80d36d..a87003c 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -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,
 
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index b0296fb..a1278fb 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -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 {
-- 
1.9.1



More information about the U-Boot mailing list