| Message ID | 1343511827-30650-1-git-send-email-otavio@ossystems.com.br |
|---|---|
| State | Awaiting Upstream |
| Headers | show |
On 28/07/2012 23:43, Otavio Salvador wrote: > The information now is gathered from HW_DIGCTL_CHIPID register and > includes the chip modem and revision on the output. > > Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> > --- Applied to u-boot-imx, next branch, thanks. Best regards, Stefano Babic
On 28/07/2012 23:43, Otavio Salvador wrote: > The information now is gathered from HW_DIGCTL_CHIPID register and > includes the chip modem and revision on the output. > > Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> > --- > Changes in v2: > - use ?? for unidentified revision and cpu type > - use numeric revisions > > Changes in v3: > - drop mx23 data as it will be posted in a later patch > - fix info order (first rev, then clock) > > Changes in v4: > - change short-description prefix to MX28 > Hi Otavio, I was convinced I had already applied your patch, but I forgot to push my local -next tree to the server to make it public. Sorry for delay. I took in any case your V4, even if V3 was already ok :-) Applied to u-boot-imx, next branch, thanks. Best regards, Stefano Babic
On Sun, Jul 29, 2012 at 7:17 AM, Stefano Babic <sbabic@denx.de> wrote: > On 28/07/2012 23:43, Otavio Salvador wrote: >> The information now is gathered from HW_DIGCTL_CHIPID register and >> includes the chip modem and revision on the output. >> >> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> > I was convinced I had already applied your patch, but I forgot to push > my local -next tree to the server to make it public. Sorry for delay. I > took in any case your V4, even if V3 was already ok :-) > > Applied to u-boot-imx, next branch, thanks. No problem. Thanks!
diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c b/arch/arm/cpu/arm926ejs/mx28/mx28.c index ff25772..cf7a50f 100644 --- a/arch/arm/cpu/arm926ejs/mx28/mx28.c +++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c @@ -188,13 +188,47 @@ int arch_cpu_init(void) } #if defined(CONFIG_DISPLAY_CPUINFO) +static const char *get_cpu_type(void) +{ + struct mx28_digctl_regs *digctl_regs = + (struct mx28_digctl_regs *)MXS_DIGCTL_BASE; + + switch (readl(&digctl_regs->hw_digctl_chipid) & HW_DIGCTL_CHIPID_MASK) { + case HW_DIGCTL_CHIPID_MX28: + return "28"; + default: + return "??"; + } +} + +static const char *get_cpu_rev(void) +{ + struct mx28_digctl_regs *digctl_regs = + (struct mx28_digctl_regs *)MXS_DIGCTL_BASE; + uint8_t rev = readl(&digctl_regs->hw_digctl_chipid) & 0x000000FF; + + switch (readl(&digctl_regs->hw_digctl_chipid) & HW_DIGCTL_CHIPID_MASK) { + case HW_DIGCTL_CHIPID_MX28: + switch (rev) { + case 0x1: + return "1.2"; + default: + return "??"; + } + default: + return "??"; + } +} + int print_cpuinfo(void) { struct mx28_spl_data *data = (struct mx28_spl_data *) ((CONFIG_SYS_TEXT_BASE - sizeof(struct mx28_spl_data)) & ~0xf); - printf("Freescale i.MX28 family at %d MHz\n", - mxc_get_clock(MXC_ARM_CLK) / 1000000); + printf("CPU: Freescale i.MX%s rev%s at %d MHz\n", + get_cpu_type(), + get_cpu_rev(), + mxc_get_clock(MXC_ARM_CLK) / 1000000); printf("BOOT: %s\n", mx28_boot_modes[data->boot_mode_idx].mode); return 0; } diff --git a/arch/arm/include/asm/arch-mx28/regs-digctl.h b/arch/arm/include/asm/arch-mx28/regs-digctl.h index 9a63594..247da6e 100644 --- a/arch/arm/include/asm/arch-mx28/regs-digctl.h +++ b/arch/arm/include/asm/arch-mx28/regs-digctl.h @@ -152,4 +152,8 @@ struct mx28_digctl_regs { }; #endif +/* Product code identification */ +#define HW_DIGCTL_CHIPID_MASK (0xffff << 16) +#define HW_DIGCTL_CHIPID_MX28 (0x2800 << 16) + #endif /* __MX28_REGS_DIGCTL_H__ */
The information now is gathered from HW_DIGCTL_CHIPID register and includes the chip modem and revision on the output. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> --- Changes in v2: - use ?? for unidentified revision and cpu type - use numeric revisions Changes in v3: - drop mx23 data as it will be posted in a later patch - fix info order (first rev, then clock) Changes in v4: - change short-description prefix to MX28 arch/arm/cpu/arm926ejs/mx28/mx28.c | 38 ++++++++++++++++++++++++-- arch/arm/include/asm/arch-mx28/regs-digctl.h | 4 +++ 2 files changed, 40 insertions(+), 2 deletions(-)