From: Jiang Yutang b14898@freescale.com
For soc which have pin multiplex relation, some of them can't enable simultaneously. This patch add environment var 'hwconfig' content defination for them. you can enable some one function by setting environment var 'hwconfig' content and reset board. Detail setting please refer doc/README.p1022ds
Signed-off-by: Jiang Yutang b14898@freescale.com Signed-off-by: Kumar Gala galak@kernel.crashing.org --- arch/powerpc/include/asm/immap_85xx.h | 8 +++++ board/freescale/p1022ds/p1022ds.c | 50 +++++++++++++++++++++++++------- doc/README.p1022ds | 24 ++++++++++++++++ 3 files changed, 71 insertions(+), 11 deletions(-) create mode 100644 doc/README.p1022ds
diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h index 5118fe0..690bb3a 100644 --- a/arch/powerpc/include/asm/immap_85xx.h +++ b/arch/powerpc/include/asm/immap_85xx.h @@ -1937,7 +1937,15 @@ typedef struct ccsr_gur { #define MPC85xx_PMUXCR_QE10 0x00000020 #define MPC85xx_PMUXCR_QE11 0x00000010 #define MPC85xx_PMUXCR_QE12 0x00000008 +#if defined(CONFIG_P1013) || defined(CONFIG_P1022) +#define MPC85xx_PMUXCR_TDM_MASK 0x0001cc00 +#define MPC85xx_PMUXCR_TDM 0x00014800 +#endif u32 pmuxcr2; /* Alt. function signal multiplex control 2 */ +#if defined(CONFIG_P1013) || defined(CONFIG_P1022) +#define MPC85xx_PMUXCR2_ETSECUSB_MASK 0x001f1000 +#define MPC85xx_PMUXCR2_USB 0x00150000 +#endif u8 res6[8]; u32 devdisr; /* Device disable control */ #define MPC85xx_DEVDISR_PCI1 0x80000000 diff --git a/board/freescale/p1022ds/p1022ds.c b/board/freescale/p1022ds/p1022ds.c index 6f20dc3..b06869a 100644 --- a/board/freescale/p1022ds/p1022ds.c +++ b/board/freescale/p1022ds/p1022ds.c @@ -93,11 +93,17 @@ int checkboard(void) /* Choose the 11.2896Mhz codec reference clock */ #define CONFIG_PIXIS_BRDCFG1_AUDCLK_11 0x01
+/* Connect to USB2 */ +#define CONFIG_PIXIS_BRDCFG0_USB2 0x10 +/* Connect to TFM bus */ +#define CONFIG_PIXIS_BRDCFG1_TDM 0x0c + int misc_init_r(void) { u8 temp; const char *audclk; size_t arglen; + ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
/* For DVI, enable the TFP410 Encoder. */
@@ -115,22 +121,44 @@ int misc_init_r(void) return -1; debug("DVI Encoder Read: 0x%02x\n",temp);
+ /* Enable the USB2 in PMUXCR2 and FGPA */ + if (hwconfig("usb2")) { + clrsetbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_ETSECUSB_MASK, + MPC85xx_PMUXCR2_USB); + setbits_8(&pixis->brdcfg0, CONFIG_PIXIS_BRDCFG0_USB2); + } + + /* tdm and audio can not enable simultaneous*/ + if (hwconfig("tdm") && hwconfig("audclk")){ + printf("WARNING: TDM and AUDIO can not be enabled simultaneous !\n"); + return -1; + } + + /* Enable the TDM in PMUXCR and FGPA */ + if (hwconfig("tdm")) { + clrsetbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_TDM_MASK, + MPC85xx_PMUXCR_TDM); + setbits_8(&pixis->brdcfg1, CONFIG_PIXIS_BRDCFG1_TDM); + } + /* * Enable the reference clock for the WM8776 codec, and route the MUX * pins for SSI. The default is the 12.288 MHz clock */
- temp = in_8(&pixis->brdcfg1) & ~(CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK | - CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK); - temp |= CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI; - - audclk = hwconfig_arg("audclk", &arglen); - /* Check the first two chars only */ - if (audclk && (strncmp(audclk, "11", 2) == 0)) - temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_11; - else - temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_12; - out_8(&pixis->brdcfg1, temp); + if (hwconfig("audclk")) { + temp = in_8(&pixis->brdcfg1) & ~(CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK | + CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK); + temp |= CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI; + + audclk = hwconfig_arg("audclk", &arglen); + /* Check the first two chars only */ + if (audclk && (strncmp(audclk, "11", 2) == 0)) + temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_11; + else + temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_12; + setbits_8(&pixis->brdcfg1, temp); + }
return 0; } diff --git a/doc/README.p1022ds b/doc/README.p1022ds new file mode 100644 index 0000000..473ecf6 --- /dev/null +++ b/doc/README.p1022ds @@ -0,0 +1,24 @@ +Overview +-------- +P1022ds is a Low End Dual core platform supporting the P1022 processor +of QorIQ series. P1022 is an e500 based dual core SOC. + + +Pin Multiplex(hwconfig setting) +------------------------------- +Add the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex +via hwconfig, i.e: +'setenv hwconfig usb2' to enable USB2 and disable eTsec2 +'setenv hwconfig tdm' to enable TDM and disable Audio +'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz) + and disable TDM +'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio +'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources + is 11MHz), disable eTsec2 and TDM + +Warning: TDM and AUDIO can not enable simultaneous ! +and AUDIO codec clock sources only setting as 11MHz or 12MHz ! +'setenv hwconfig 'audclk:12;tdm' --- error ! +'setenv hwconfig 'audclk:11;tdm' --- error ! +'setenv hwconfig 'audclk:10' --- error ! +