[U-Boot-Users] 85xx, 86xx: Determine I2C clock frequencies and store in global_data
Timur Tabi
timur at freescale.com
Wed Jan 9 21:35:26 CET 2008
Update global_data to define i2c1_clk and i2c2_clk to 85xx and 86xx.
Update the get_clocks() function in 85xx and 86xx to determine the I2C
clock frequency and store it in gd->i2c1_clk and gd->i2c2_clk.
Signed-off-by: Timur Tabi <timur at freescale.com>
---
cpu/mpc85xx/speed.c | 3 +++
cpu/mpc86xx/speed.c | 2 ++
include/asm-ppc/global_data.h | 6 ++++--
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c
index 27de37a..952f30c 100644
--- a/cpu/mpc85xx/speed.c
+++ b/cpu/mpc85xx/speed.c
@@ -75,6 +75,9 @@ int get_clocks (void)
get_sys_info (&sys_info);
gd->cpu_clk = sys_info.freqProcessor;
gd->bus_clk = sys_info.freqSystemBus;
+ gd->i2c1_clk = sys_info.freqSystemBus;
+ gd->i2c2_clk = sys_info.freqSystemBus;
+
#if defined(CONFIG_CPM2)
gd->vco_out = 2*sys_info.freqSystemBus;
gd->cpm_clk = gd->vco_out / 2;
diff --git a/cpu/mpc86xx/speed.c b/cpu/mpc86xx/speed.c
index 4f7e8f1..7e884f8 100644
--- a/cpu/mpc86xx/speed.c
+++ b/cpu/mpc86xx/speed.c
@@ -105,6 +105,8 @@ int get_clocks(void)
get_sys_info(&sys_info);
gd->cpu_clk = sys_info.freqProcessor;
gd->bus_clk = sys_info.freqSystemBus;
+ gd->i2c1_clk = sys_info.freqSystemBus;
+ gd->i2c2_clk = sys_info.freqSystemBus;
if (gd->cpu_clk != 0)
return 0;
diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h
index 91acf9b..d796c53 100644
--- a/include/asm-ppc/global_data.h
+++ b/include/asm-ppc/global_data.h
@@ -70,8 +70,6 @@ typedef struct global_data {
u32 sdhc_clk;
#endif
u32 core_clk;
- u32 i2c1_clk;
- u32 i2c2_clk;
u32 enc_clk;
u32 lbiu_clk;
u32 lclk_clk;
@@ -88,6 +86,10 @@ typedef struct global_data {
u32 ddr_sec_clk;
#endif /* CONFIG_MPC8360 */
#endif
+#if defined(CONFIG_MPC83XX) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
+ u32 i2c1_clk;
+ u32 i2c2_clk;
+#endif
#if defined(CONFIG_QE)
u32 qe_clk;
u32 brg_clk;
--
1.5.2.4
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