[U-Boot] [PATCH 1/6][v4] armv8: lsch3: Add generic get_svr() in assembly

[Priyanka Jain]

From: Priyanka Jain <priyanka.jain at nxp.com>

Signed-off-by: Priyanka Jain <priyanka.jain at nxp.com>
---
Changes for v4:
 update get_svr() implementation change to be effective
 only on Chassis3 platforms to fix compilation issues
 on non-chassis3 platforms like ls1012a

 arch/arm/cpu/armv8/fsl-layerscape/cpu.c            |    2 ++
 arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S       |    9 +++++++++
 .../include/asm/arch-fsl-layerscape/immap_lsch3.h  |    6 +++---
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index b7a2e0c..80c8ac0 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -305,12 +305,14 @@ u32 fsl_qoriq_core_to_type(unsigned int core)
 	return -1;      /* cannot identify the cluster */
 }
 
+#ifndef CONFIG_FSL_LSCH3
 uint get_svr(void)
 {
 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 
 	return gur_in32(&gur->svr);
 }
+#endif
 
 #ifdef CONFIG_DISPLAY_CPUINFO
 int print_cpuinfo(void)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
index 5700b1f..6ff47b0 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
+++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
@@ -13,6 +13,9 @@
 #ifdef CONFIG_MP
 #include <asm/arch/mp.h>
 #endif
+#ifdef CONFIG_FSL_LSCH3
+#include <asm/arch-fsl-layerscape/immap_lsch3.h>
+#endif
 
 ENTRY(lowlevel_init)
 	mov	x29, lr			/* Save LR */
@@ -199,6 +202,12 @@ ENTRY(lowlevel_init)
 ENDPROC(lowlevel_init)
 
 #ifdef CONFIG_FSL_LSCH3
+	.globl get_svr
+get_svr:
+	ldr	x1, =FSL_LSCH3_SVR
+	ldr	w0, [x1]
+	ret
+
 hnf_pstate_poll:
 	/* x0 has the desired status, return 0 for success, 1 for timeout
 	 * clobber x1, x2, x3, x4, x6, x7
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 7acba27..09c1033 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -27,6 +27,7 @@
 #define CONFIG_SYS_FSL_PMU_CLTBENR		(CONFIG_SYS_FSL_PMU_ADDR + \
 						 0x18A0)
 #define FSL_PMU_PCTBENR_OFFSET (CONFIG_SYS_FSL_PMU_ADDR + 0x8A0)
+#define FSL_LSCH3_SVR		(CONFIG_SYS_FSL_GUTS_ADDR + 0xA4)
 
 #define CONFIG_SYS_FSL_WRIOP1_ADDR		(CONFIG_SYS_IMMR + 0x7B80000)
 #define CONFIG_SYS_FSL_WRIOP1_MDIO1	(CONFIG_SYS_FSL_WRIOP1_ADDR + 0x16000)
@@ -153,7 +154,7 @@
 #define TP_CLUSTER_INIT_MASK	0x0000003f	/* initiator mask */
 #define TP_INIT_PER_CLUSTER     4
 /* This is chassis generation 3 */
-
+#ifndef __ASSEMBLY__
 struct sys_info {
 	unsigned long freq_processor[CONFIG_MAX_CPUS];
 	unsigned long freq_systembus;
@@ -317,6 +318,5 @@ struct ccsr_reset {
 	u32 ip_rev2;			/* 0xbfc */
 };
 
-uint get_svr(void);
-
+#endif /*__ASSEMBLY__*/
 #endif /* __ARCH_FSL_LSCH3_IMMAP_H_ */
-- 
1.7.4.1