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mx53loco: Allow to print CPU information at a later stage

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Print CPU information within board_late_init().

This is in preparation for adding 1GHz support, which requires programming a PMIC
via I2C. As I2C is only available after relocation, print the CPU information
later at board_late_init(), so that the CPU frequency can be printed correctly.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Fabio Estevam 2012-04-30 08:12:03 +00:00 committed by Albert ARIBAUD
parent 70cc86a630
commit 1fc56f1cb0
4 changed files with 24 additions and 2 deletions
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2
arch/arm/cpu/armv7/imx-common/cpu.c
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@ -35,7 +35,7 @@
#include <fsl_esdhc.h> #include <fsl_esdhc.h>
#endif #endif
static char *get_reset_cause(void) char *get_reset_cause(void)
{ {
u32 cause; u32 cause;
struct src *src_regs = (struct src *)SRC_BASE_ADDR; struct src *src_regs = (struct src *)SRC_BASE_ADDR;

1
arch/arm/include/asm/arch-mx5/sys_proto.h
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@ -37,5 +37,6 @@ void set_chipselect_size(int const);
int fecmxc_initialize(bd_t *bis); int fecmxc_initialize(bd_t *bis);
u32 get_ahb_clk(void); u32 get_ahb_clk(void);
u32 get_periph_clk(void); u32 get_periph_clk(void);
char *get_reset_cause(void);
#endif #endif

22
board/freescale/mx53loco/mx53loco.c
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@ -299,6 +299,28 @@ int board_early_init_f(void)
return 0; return 0;
} }
int print_cpuinfo(void)
{
u32 cpurev;
cpurev = get_cpu_rev();
printf("CPU: Freescale i.MX%x family rev%d.%d at %d MHz\n",
(cpurev & 0xFF000) >> 12,
(cpurev & 0x000F0) >> 4,
(cpurev & 0x0000F) >> 0,
mxc_get_clock(MXC_ARM_CLK) / 1000000);
printf("Reset cause: %s\n", get_reset_cause());
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
print_cpuinfo();
return 0;
}
#endif
int board_init(void) int board_init(void)
{ {
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

1
include/configs/mx53loco.h
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@ -27,7 +27,6 @@
#define CONFIG_SYS_MX5_HCLK 24000000 #define CONFIG_SYS_MX5_HCLK 24000000
#define CONFIG_SYS_MX5_CLK32 32768 #define CONFIG_SYS_MX5_CLK32 32768
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO #define CONFIG_DISPLAY_BOARDINFO
#define CONFIG_MACH_TYPE MACH_TYPE_MX53_LOCO #define CONFIG_MACH_TYPE MACH_TYPE_MX53_LOCO