From e7bed5c2b30c894666e43b68a3d7b8e8f91da50d Mon Sep 17 00:00:00 2001
From: Matthias Weisser <weisserm@arcor.de>
Date: Mon, 24 Sep 2012 02:46:53 +0000
Subject: [PATCH] imx: Use MXC_I2C_CLK in imx i2c driver
i2c didn't work on imx25 due to missing MXC_IPG_PERCLK. Now using
MXC_I2C_CLK on all imx systems using i2c.
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
Acked-by: Stefano Babic <sbabic@denx.de>
---
arch/arm/cpu/arm1136/mx31/generic.c | 1 +
arch/arm/cpu/arm1136/mx35/generic.c | 1 +
arch/arm/cpu/armv7/mx5/clock.c | 1 +
arch/arm/cpu/armv7/mx6/clock.c | 1 +
arch/arm/include/asm/arch-mx31/clock.h | 1 +
arch/arm/include/asm/arch-mx35/clock.h | 1 +
arch/arm/include/asm/arch-mx5/clock.h | 1 +
arch/arm/include/asm/arch-mx6/clock.h | 1 +
drivers/i2c/mxc_i2c.c | 4 ++--
9 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/arm1136/mx31/generic.c b/arch/arm/cpu/arm1136/mx31/generic.c
index 93f429cc52..b9f9b43fa6 100644
--- a/arch/arm/cpu/arm1136/mx31/generic.c
+++ b/arch/arm/cpu/arm1136/mx31/generic.c
@@ -104,6 +104,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_CSPI_CLK:
case MXC_UART_CLK:
case MXC_ESDHC_CLK:
+ case MXC_I2C_CLK:
return mx31_get_ipg_clk();
case MXC_IPU_CLK:
return mx31_get_hsp_clk();
diff --git a/arch/arm/cpu/arm1136/mx35/generic.c b/arch/arm/cpu/arm1136/mx35/generic.c
index ef65176eed..7dc1a8ec58 100644
--- a/arch/arm/cpu/arm1136/mx35/generic.c
+++ b/arch/arm/cpu/arm1136/mx35/generic.c
@@ -357,6 +357,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_IPG_CLK:
return get_ipg_clk();
case MXC_IPG_PERCLK:
+ case MXC_I2C_CLK:
return get_ipg_per_clk();
case MXC_UART_CLK:
return imx_get_uartclk();
diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c
index c67c3cfc48..8fa737a2d8 100644
--- a/arch/arm/cpu/armv7/mx5/clock.c
+++ b/arch/arm/cpu/armv7/mx5/clock.c
@@ -482,6 +482,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_IPG_CLK:
return get_ipg_clk();
case MXC_IPG_PERCLK:
+ case MXC_I2C_CLK:
return get_ipg_per_clk();
case MXC_UART_CLK:
return get_uart_clk();
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index ed2c913f05..76486e7cf0 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -357,6 +357,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_IPG_CLK:
return get_ipg_clk();
case MXC_IPG_PERCLK:
+ case MXC_I2C_CLK:
return get_ipg_per_clk();
case MXC_UART_CLK:
return get_uart_clk();
diff --git a/arch/arm/include/asm/arch-mx31/clock.h b/arch/arm/include/asm/arch-mx31/clock.h
index 9468b45feb..1dbb8dabe9 100644
--- a/arch/arm/include/asm/arch-mx31/clock.h
+++ b/arch/arm/include/asm/arch-mx31/clock.h
@@ -46,6 +46,7 @@ enum mxc_clock {
MXC_UART_CLK,
MXC_IPU_CLK,
MXC_ESDHC_CLK,
+ MXC_I2C_CLK,
};
unsigned int mxc_get_clock(enum mxc_clock clk);
diff --git a/arch/arm/include/asm/arch-mx35/clock.h b/arch/arm/include/asm/arch-mx35/clock.h
index eb7458a338..2eff08d1d4 100644
--- a/arch/arm/include/asm/arch-mx35/clock.h
+++ b/arch/arm/include/asm/arch-mx35/clock.h
@@ -48,6 +48,7 @@ enum mxc_clock {
MXC_USB_CLK,
MXC_CSPI_CLK,
MXC_FEC_CLK,
+ MXC_I2C_CLK,
};
enum mxc_main_clock {
diff --git a/arch/arm/include/asm/arch-mx5/clock.h b/arch/arm/include/asm/arch-mx5/clock.h
index 8d8fa18fc5..21febd87a0 100644
--- a/arch/arm/include/asm/arch-mx5/clock.h
+++ b/arch/arm/include/asm/arch-mx5/clock.h
@@ -36,6 +36,7 @@ enum mxc_clock {
MXC_DDR_CLK,
MXC_NFC_CLK,
MXC_PERIPH_CLK,
+ MXC_I2C_CLK,
};
u32 imx_get_uartclk(void);
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index c55c18d51b..2af04f0d3e 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -41,6 +41,7 @@ enum mxc_clock {
MXC_ESDHC4_CLK,
MXC_SATA_CLK,
MXC_NFC_CLK,
+ MXC_I2C_CLK,
};
u32 imx_get_uartclk(void);
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 73d8958701..18270b9de6 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -98,7 +98,7 @@ static uint8_t i2c_imx_get_clk(unsigned int rate)
#endif
/* Divider value calculation */
- i2c_clk_rate = mxc_get_clock(MXC_IPG_PERCLK);
+ i2c_clk_rate = mxc_get_clock(MXC_I2C_CLK);
div = (i2c_clk_rate + rate - 1) / rate;
if (div < i2c_clk_div[0][0])
clk_div = 0;
@@ -142,7 +142,7 @@ unsigned int bus_i2c_get_bus_speed(void *base)
for (clk_div = 0; i2c_clk_div[clk_div][1] != clk_idx; clk_div++)
;
- return mxc_get_clock(MXC_IPG_PERCLK) / i2c_clk_div[clk_div][0];
+ return mxc_get_clock(MXC_I2C_CLK) / i2c_clk_div[clk_div][0];
}
#define ST_BUS_IDLE (0 | (I2SR_IBB << 8))
--
2.39.5