[U-Boot] [PATCH v2] i.MX28: bug fixes in PMU configuration code

Fixed some typos in the i.MX28 PMU code that sets up the VDDD and VDDIO power rails. In addition the VDDD and VDDIO brownout offset values should be divided by a step size before being programmed to the corresponding registers.
Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com ---
Changes for v2: - White space cleanup
arch/arm/cpu/arm926ejs/mx28/spl_power_init.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-)
diff --git arch/arm/cpu/arm926ejs/mx28/spl_power_init.c arch/arm/cpu/arm926ejs/mx28/spl_power_init.c index 4b09b0c..cc71af8 100644 --- arch/arm/cpu/arm926ejs/mx28/spl_power_init.c +++ arch/arm/cpu/arm926ejs/mx28/spl_power_init.c @@ -716,7 +716,7 @@ int mx28_get_vddio_power_source_off(void) tmp = readl(&power_regs->hw_power_vddioctrl); if (tmp & POWER_VDDIOCTRL_DISABLE_FET) { if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) == - POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) { + POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) { return 1; } } @@ -724,7 +724,7 @@ int mx28_get_vddio_power_source_off(void) if (!(readl(&power_regs->hw_power_5vctrl) & POWER_5VCTRL_ENABLE_DCDC)) { if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) == - POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) { + POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) { return 1; } } @@ -772,7 +772,7 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) uint32_t cur_target, diff, bo_int = 0; uint32_t powered_by_linreg = 0;
- new_brownout = new_target - new_brownout; + new_brownout = (new_target - new_brownout + 25) / 50;
cur_target = readl(&power_regs->hw_power_vddioctrl); cur_target &= POWER_VDDIOCTRL_TRG_MASK; @@ -858,8 +858,8 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) }
clrsetbits_le32(&power_regs->hw_power_vddioctrl, - POWER_VDDDCTRL_BO_OFFSET_MASK, - new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET); + POWER_VDDIOCTRL_BO_OFFSET_MASK, + new_brownout << POWER_VDDIOCTRL_BO_OFFSET_OFFSET); }
void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) @@ -869,7 +869,7 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) uint32_t cur_target, diff, bo_int = 0; uint32_t powered_by_linreg = 0;
- new_brownout = new_target - new_brownout; + new_brownout = (new_target - new_brownout + 12) / 25;
cur_target = readl(&power_regs->hw_power_vdddctrl); cur_target &= POWER_VDDDCTRL_TRG_MASK; -- 1.7.2.5
Stathis Voukelatos Senior Software Engineer Linn Products Ltd. Glasgow Road Eaglesham, Glasgow G76 0EQ, UK Tel: +44 (0)141 3035191 Email: stathis.voukelatos@linn.co.uk

Dear Stathis Voukelatos,
Fixed some typos in the i.MX28 PMU code that sets up the VDDD and VDDIO power rails. In addition the VDDD and VDDIO brownout offset values should be divided by a step size before being programmed to the corresponding registers.
Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com
[...]
Acked-by: Marek Vasut marex@denx.de
Stefano, can you please apply?
Best regards, Marek Vasut

On 27/07/2012 10:53, Stathis Voukelatos wrote:
Fixed some typos in the i.MX28 PMU code that sets up the VDDD and VDDIO power rails. In addition the VDDD and VDDIO brownout offset values should be divided by a step size before being programmed to the corresponding registers.
Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com
Hi Stathis,
your patch looks ok but it is mangled by your e-mailer. See how patchwork shows your patch at:
http://patchwork.ozlabs.org/patch/173592/
Part of your patch is moved into the comments and some characters are replaced.
Your patch is surely ok because you use git-format-patch. Can you check this issue and resend it, possibly using git send-email that avoids these kind of problems ? Thanks !
Best regards, Stefano Babic

Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com ---
Changes for v2: - White space cleanup
arch/arm/cpu/arm926ejs/mx28/spl_power_init.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c index 4b09b0c..cc71af8 100644 --- a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c @@ -716,7 +716,7 @@ int mx28_get_vddio_power_source_off(void) tmp = readl(&power_regs->hw_power_vddioctrl); if (tmp & POWER_VDDIOCTRL_DISABLE_FET) { if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) == - POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) { + POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) { return 1; } } @@ -724,7 +724,7 @@ int mx28_get_vddio_power_source_off(void) if (!(readl(&power_regs->hw_power_5vctrl) & POWER_5VCTRL_ENABLE_DCDC)) { if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) == - POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) { + POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) { return 1; } } @@ -772,7 +772,7 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) uint32_t cur_target, diff, bo_int = 0; uint32_t powered_by_linreg = 0;
- new_brownout = new_target - new_brownout; + new_brownout = (new_target - new_brownout + 25) / 50;
cur_target = readl(&power_regs->hw_power_vddioctrl); cur_target &= POWER_VDDIOCTRL_TRG_MASK; @@ -858,8 +858,8 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) }
clrsetbits_le32(&power_regs->hw_power_vddioctrl, - POWER_VDDDCTRL_BO_OFFSET_MASK, - new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET); + POWER_VDDIOCTRL_BO_OFFSET_MASK, + new_brownout << POWER_VDDIOCTRL_BO_OFFSET_OFFSET); }
void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) @@ -869,7 +869,7 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) uint32_t cur_target, diff, bo_int = 0; uint32_t powered_by_linreg = 0;
- new_brownout = new_target - new_brownout; + new_brownout = (new_target - new_brownout + 12) / 25;
cur_target = readl(&power_regs->hw_power_vdddctrl); cur_target &= POWER_VDDDCTRL_TRG_MASK;

On 07/08/2012 16:56, Stathis Voukelatos wrote:
Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com
Applied to u-boot-imx, thanks.
Best regards, Stefano Babic

Dear Stathis Voukelatos,
Signed-off-by: Stathis Voukelatos stathis.voukelatos@linn.co.uk Cc: Stefano Babic sbabic@denx.de Cc: Marek Vasut marek.vasut@gmail.com
Thanks for the patch and your effort !
btw. how did you find it ? :)
Best regards, Marek Vasut
participants (4)
-
Marek Vasut
-
Stathis Voukelatos
-
Stathis Voukelatos
-
Stefano Babic