Hi, Marek,
On Thu, Sep 22, 2011 at 1:47 PM, Marek Vasut marek.vasut@gmail.com wrote:
On Thursday, September 22, 2011 06:54:22 AM Jason Hui wrote:
Hi, Marek,
On Thu, Sep 22, 2011 at 11:43 AM, Marek Vasut marek.vasut@gmail.com wrote:
On Thursday, September 22, 2011 04:45:20 AM Jason Hui wrote:
Hi, Marek,
On Tue, Sep 20, 2011 at 10:35 AM, Marek Vasut marek.vasut@gmail.com
wrote:
Rewrite the mxc_i2c driver. * This version is much closer to Linux implementation. * Fixes IPG_PERCLK being incorrectly used as clock source * Fixes behaviour of the driver on iMX51 * Clean up coding style a bit ;-)
Signed-off-by: Marek Vasut marek.vasut@gmail.com Cc: Stefano Babic sbabic@denx.de Cc: Heiko Schocher hs@denx.de Cc: Jason Hui jason.hui@linaro.org
drivers/i2c/mxc_i2c.c | 422 +++++++++++++++++++++++++++++++++---------------- 1 files changed, 289 insertions(+), 133 deletions(-)
V2: Use PERCLK as a source.
V3: Remove forgotten unused variables.
V4: Add missing Cc field to commit message
Test result on i.mx53evk, it shows that this patch does not work well, here is the log:
MX53EVK U-Boot > pmic dump 10 PMIC ID: 0x0000ffff [Rev: unknown]
0x00: 0001ffff 00ffffff 0039ffff 0000ffff 00ffffff 0000ffff 0000ffff 0000ffff 0x08: 0000ffff 0000ffff 0000ffff 0000ffff 0000ffff 0000ffff 0000ffff 0040ffff
It's strange, reading the registers with i2c md seems to work.
Here is i2c md output: MX53EVK U-Boot > i2c md 8 0 0000: 01 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
seems not ok.
8 seems certainly not ok since the pmic is at 0x48
On mx53evk board, there is one PMIC(FSL, Atlas), but on mx53loco board, there is one PMIC(DLG9053).
Both are I2C interface, I just test the patch on mx53evk board.
Jason Liu