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stm32mp1: update print_cpuinfo()

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Display CPU part number and package information.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2019-02-27 17:01:13 +01:00
parent 7f63c1e687
commit 35d568f090
2 changed files with 104 additions and 8 deletions
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102
arch/arm/mach-stm32mp/cpu.c
View file

@ -55,9 +55,30 @@
#define BOOTROM_INSTANCE_SHIFT 16
/* BSEC OTP index */
#define BSEC_OTP_RPN 1
#define BSEC_OTP_SERIAL 13
#define BSEC_OTP_PKG 16
#define BSEC_OTP_MAC 57
/* Device Part Number (RPN) = OTP_DATA1 lower 8 bits */
#define RPN_SHIFT 0
#define RPN_MASK GENMASK(7, 0)
/* Package = bit 27:29 of OTP16
* - 100: LBGA448 (FFI) => AA = LFBGA 18x18mm 448 balls p. 0.8mm
* - 011: LBGA354 (LCI) => AB = LFBGA 16x16mm 359 balls p. 0.8mm
* - 010: TFBGA361 (FFC) => AC = TFBGA 12x12mm 361 balls p. 0.5mm
* - 001: TFBGA257 (LCC) => AD = TFBGA 10x10mm 257 balls p. 0.5mm
* - others: Reserved
*/
#define PKG_SHIFT 27
#define PKG_MASK GENMASK(2, 0)
#define PKG_AA_LBGA448 4
#define PKG_AB_LBGA354 3
#define PKG_AC_TFBGA361 2
#define PKG_AD_TFBGA257 1
#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
#ifndef CONFIG_STM32MP1_TRUSTED
static void security_init(void)
@ -215,25 +236,94 @@ u32 get_cpu_rev(void)
return (read_idc() & DBGMCU_IDC_REV_ID_MASK) >> DBGMCU_IDC_REV_ID_SHIFT;
}
static u32 get_otp(int index, int shift, int mask)
{
int ret;
struct udevice *dev;
u32 otp = 0;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec),
&dev);
if (!ret)
ret = misc_read(dev, STM32_BSEC_SHADOW(index),
&otp, sizeof(otp));
return (otp >> shift) & mask;
}
/* Get Device Part Number (RPN) from OTP */
static u32 get_cpu_rpn(void)
{
return get_otp(BSEC_OTP_RPN, RPN_SHIFT, RPN_MASK);
}
u32 get_cpu_type(void)
{
return (read_idc() & DBGMCU_IDC_DEV_ID_MASK) >> DBGMCU_IDC_DEV_ID_SHIFT;
u32 id;
id = (read_idc() & DBGMCU_IDC_DEV_ID_MASK) >> DBGMCU_IDC_DEV_ID_SHIFT;
return (id << 16) | get_cpu_rpn();
}
/* Get Package options from OTP */
static u32 get_cpu_package(void)
{
return get_otp(BSEC_OTP_PKG, PKG_SHIFT, PKG_MASK);
}
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
char *cpu_s, *cpu_r;
char *cpu_s, *cpu_r, *pkg;
/* MPUs Part Numbers */
switch (get_cpu_type()) {
case CPU_STMP32MP15x:
cpu_s = "15x";
case CPU_STM32MP157Cxx:
cpu_s = "157C";
break;
case CPU_STM32MP157Axx:
cpu_s = "157A";
break;
case CPU_STM32MP153Cxx:
cpu_s = "153C";
break;
case CPU_STM32MP153Axx:
cpu_s = "153A";
break;
case CPU_STM32MP151Cxx:
cpu_s = "151C";
break;
case CPU_STM32MP151Axx:
cpu_s = "151A";
break;
default:
cpu_s = "?";
cpu_s = "????";
break;
}
/* Package */
switch (get_cpu_package()) {
case PKG_AA_LBGA448:
pkg = "AA";
break;
case PKG_AB_LBGA354:
pkg = "AB";
break;
case PKG_AC_TFBGA361:
pkg = "AC";
break;
case PKG_AD_TFBGA257:
pkg = "AD";
break;
default:
pkg = "??";
break;
}
/* REVISION */
switch (get_cpu_rev()) {
case CPU_REVA:
cpu_r = "A";
@ -246,7 +336,7 @@ int print_cpuinfo(void)
break;
}
printf("CPU: STM32MP%s.%s\n", cpu_s, cpu_r);
printf("CPU: STM32MP%s%s Rev.%s\n", cpu_s, pkg, cpu_r);
return 0;
}

10
arch/arm/mach-stm32mp/include/mach/sys_proto.h
View file

@ -3,9 +3,15 @@
* Copyright (C) 2015-2017, STMicroelectronics - All Rights Reserved
*/
#define CPU_STMP32MP15x 0x500
/* ID = Device Version (bit31:16) + Device Part Number (RPN) (bit15:0)*/
#define CPU_STM32MP157Cxx 0x05000000
#define CPU_STM32MP157Axx 0x05000001
#define CPU_STM32MP153Cxx 0x05000024
#define CPU_STM32MP153Axx 0x05000025
#define CPU_STM32MP151Cxx 0x0500002E
#define CPU_STM32MP151Axx 0x0500002F
/* return CPU_STMP32MPxx constants */
/* return CPU_STMP32MP...Xxx constants */
u32 get_cpu_type(void);
#define CPU_REVA 0x1000