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mx23: Add support on print_cpuinfo()

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Add information to identify i.MX23 chips and its known revisions.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Otavio Salvador 2013-01-11 03:19:08 +00:00 committed by Stefano Babic
parent 95e873d601
commit f69077e420
2 changed files with 19 additions and 1 deletions
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19
arch/arm/cpu/arm926ejs/mxs/mxs.c
View file

@ -1,5 +1,5 @@
/*
* Freescale i.MX28 common code
* Freescale i.MX23/i.MX28 common code
*
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
@ -196,6 +196,8 @@ static const char *get_cpu_type(void)
(struct mxs_digctl_regs *)MXS_DIGCTL_BASE;
switch (readl(&digctl_regs->hw_digctl_chipid) & HW_DIGCTL_CHIPID_MASK) {
case HW_DIGCTL_CHIPID_MX23:
return "23";
case HW_DIGCTL_CHIPID_MX28:
return "28";
default:
@ -210,6 +212,21 @@ static const char *get_cpu_rev(void)
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_MX23:
switch (rev) {
case 0x0:
return "1.0";
case 0x1:
return "1.1";
case 0x2:
return "1.2";
case 0x3:
return "1.3";
case 0x4:
return "1.4";
default:
return "??";
}
case HW_DIGCTL_CHIPID_MX28:
switch (rev) {
case 0x1:

1
arch/arm/include/asm/arch-mxs/regs-digctl.h
View file

@ -154,6 +154,7 @@ struct mxs_digctl_regs {
/* Product code identification */
#define HW_DIGCTL_CHIPID_MASK (0xffff << 16)
#define HW_DIGCTL_CHIPID_MX23 (0x3780 << 16)
#define HW_DIGCTL_CHIPID_MX28 (0x2800 << 16)
#endif /* __MX28_REGS_DIGCTL_H__ */