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imx: mx7ulp: Add soc level initialization codes and functions

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Implement soc level functions to get cpu rev, reset cause, enable cache,
etc. We will disable the wdog and init clocks in s_init at very early u-boot
phase.

Since the we are seeking the way to get chip id for mx7ulp, the get_cpu_rev
is hard coded to a fixed value. This may change in future.

Reuse some code in imx-common.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan
2017-02-22 16:21:43 +08:00
committed by Stefano Babic
parent d0f8516d9e
commit 1b409828b1
6 changed files with 268 additions and 2 deletions
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2
arch/arm/include/asm/arch-imx/cpu.h
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@@ -25,10 +25,12 @@
#define MXC_CPU_MX6QP 0x69
#define MXC_CPU_MX7S 0x71 /* dummy ID */
#define MXC_CPU_MX7D 0x72
#define MXC_CPU_MX7ULP 0x81 /* Temporally hard code */
#define MXC_CPU_VF610 0xF6 /* dummy ID */
#define MXC_SOC_MX6 0x60
#define MXC_SOC_MX7 0x70
#define MXC_SOC_MX7ULP 0x80 /* dummy */
#define CHIP_REV_1_0 0x10
#define CHIP_REV_1_1 0x11