[U-Boot] [PATCH v3 1/5] arm64: fsl-layerscape: add get_svr and IS_SVR_REV helper

[Sriram Dash]

Adds get_svr and IS_SVR_REV helpers for ARMv8 platforms,
similar to PPC and ARMv7.

Signed-off-by: Sriram Dash <sriram.dash at nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat at nxp.com>
---

Changes in v1:
  - Added commit message

Changes in v2:
  - No update

 arch/arm/cpu/armv8/fsl-layerscape/cpu.c                | 7 +++++++
 arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h | 2 ++
 arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h | 3 +++
 arch/arm/include/asm/arch-fsl-layerscape/soc.h         | 2 ++
 4 files changed, 14 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 9a5a6b5..9c575c1 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -528,6 +528,13 @@ u32 fsl_qoriq_core_to_type(unsigned int core)
 	return -1;      /* cannot identify the cluster */
 }
 
+uint get_svr(void)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+
+	return gur_in32(&gur->svr);
+}
+
 #ifdef CONFIG_DISPLAY_CPUINFO
 int print_cpuinfo(void)
 {
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index e98e055..8b8a7c1 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -596,4 +596,6 @@ struct ccsr_cci400 {
 #define SCR0_CLIENTPD_MASK		0x00000001
 #define SCR0_USFCFG_MASK		0x00000400
 
+uint get_svr(void);
+
 #endif	/* __ARCH_FSL_LSCH2_IMMAP_H__*/
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
index 65b3357..e48bbaf 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -319,4 +319,7 @@ struct ccsr_reset {
 	u32 ip_rev1;			/* 0xbf8 */
 	u32 ip_rev2;			/* 0xbfc */
 };
+
+uint get_svr(void);
+
 #endif /* __ARCH_FSL_LSCH3_IMMAP_H_ */
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
index 02ecc62..f244904 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
@@ -53,6 +53,8 @@ struct cpu_type {
 #define SVR_MIN(svr)		(((svr) >> 0) & 0xf)
 #define SVR_SOC_VER(svr)	(((svr) >> 8) & SVR_WO_E)
 #define IS_E_PROCESSOR(svr)	(!((svr >> 8) & 0x1))
+#define IS_SVR_REV(svr, maj, min) \
+		((SVR_MAJ(svr) == maj) && (SVR_MIN(svr) == min))
 
 /* ahci port register default value */
 #define AHCI_PORT_PHY_1_CFG    0xa003fffe
-- 
2.1.0