diff options
Diffstat (limited to 'recipes-bsp/u-boot/u-boot/mx53-fix-uart-clock.patch')
| -rw-r--r-- | recipes-bsp/u-boot/u-boot/mx53-fix-uart-clock.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/recipes-bsp/u-boot/u-boot/mx53-fix-uart-clock.patch b/recipes-bsp/u-boot/u-boot/mx53-fix-uart-clock.patch deleted file mode 100644 index 7d4f6bc..0000000 --- a/recipes-bsp/u-boot/u-boot/mx53-fix-uart-clock.patch +++ /dev/null @@ -1,55 +0,0 @@ -Change the parent UART clock to be PLL2, so that U-boot can also boot -a Freescale 2.6.35 kernel for mx53. - -FSL kernel and U-boot changed the UART parent from PLL3 to PLL2 to avoid -conflicts with IPU clocks, so that the video resolution can be changed -without affecting the UART clock. - -On a 2.6.35 kernel the serial console is messed up after IPU driver is loaded -and this patch fixes this problem. - -Tested on a mx53loco board booting a FSL kernel and also a mainline kernel. - -Upstream-Status: Submitted [under review] - -Reported-by: Otavio Salvador <otavio@ossystems.com.br> -Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> ---- - arch/arm/cpu/armv7/mx5/lowlevel_init.S | 20 +++++++++++++++++--- - 1 files changed, 17 insertions(+), 3 deletions(-) - -diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S -index 01f6d75..90c6ec1 100644 ---- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S -+++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S -@@ -284,10 +284,24 @@ - ldr r1, =0x00C30321 - str r1, [r0, #CLKCTL_CSCDR1] - #elif defined(CONFIG_MX53) -+ /* Switch peripheral to PLL2 */ -+ ldr r0, =CCM_BASE_ADDR -+ ldr r1, =0x00808145 -+ orr r1, r1, #(2 << 10) -+ orr r1, r1, #(0 << 16) -+ orr r1, r1, #(1 << 19) -+ str r1, [r0, #CLKCTL_CBCDR] -+ -+ ldr r1, =0x00016154 -+ str r1, [r0, #CLKCTL_CBCMR] -+ /* Change uart clk parent to pll2*/ -+ ldr r1, [r0, #CLKCTL_CSCMR1] -+ and r1, r1, #0xfcffffff -+ orr r1, r1, #0x01000000 -+ str r1, [r0, #CLKCTL_CSCMR1] - ldr r1, [r0, #CLKCTL_CSCDR1] -- orr r1, r1, #0x3f -- eor r1, r1, #0x3f -- orr r1, r1, #0x21 -+ and r1, r1, #0xffffffc0 -+ orr r1, r1, #0x0a - str r1, [r0, #CLKCTL_CSCDR1] - #endif - /* make sure divider effective */ --- -1.7.1 - |