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imx8: cpu: add uclass based CPU driver

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print_cpuinfo() in board init code requires uclass CPU driver,
add it to be able to display CPU info when CONFIG_DISPLAY_CPUINFO
option is enabled. CPU node in DT will have to include 'clocks'
and 'u-boot,dm-pre-reloc' properties for generic print_cpuinfo()
to work as expected. The driver outputs info for i.MX8QXP Rev A
and Rev B CPUs.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Anatolij Gustschin
2018-10-18 14:28:24 +02:00
committed by Stefano Babic
parent 70b4b49b91
commit 2fdb1a1df9
2 changed files with 142 additions and 78 deletions
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5
arch/arm/include/asm/arch-imx/cpu.h
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@@ -25,6 +25,7 @@
#define MXC_CPU_MX7S 0x71 /* dummy ID */
#define MXC_CPU_MX7D 0x72
#define MXC_CPU_MX8MQ 0x82
#define MXC_CPU_IMX8QXP_A0 0x90 /* dummy ID */
#define MXC_CPU_IMX8QXP 0x92 /* dummy ID */
#define MXC_CPU_MX7ULP 0xE1 /* Temporally hard code */
#define MXC_CPU_VF610 0xF6 /* dummy ID */
@@ -43,8 +44,8 @@
#define CHIP_REV_2_5 0x25
#define CHIP_REV_3_0 0x30
#define CHIP_REV_A 0x0
#define CHIP_REV_B 0x1
#define CHIP_REV_A 0x0
#define CHIP_REV_B 0x1
#define BOARD_REV_1_0 0x0
#define BOARD_REV_2_0 0x1