[U-Boot] [PATCH 13/22][v2] armv8/fsl-ch3: Add support to print SoC personality

Prabhakar Kushwaha
2015-05-28T09:24:06Z

This patch adds support to print out the SoC personality.
Freescale LS20xx SoCs (compliant to Chassis-3 specifications) can
have 6 personalities: LS2045AE, LS2045A, LS2080AE, LS2080A,
LS2085AE and LS2085A

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
---
Changes for v2: sending as it is for patch set

arch/arm/cpu/armv8/fsl-lsch3/cpu.c | 37 +++++++++++++++++++++++++++++++
arch/arm/include/asm/arch-fsl-lsch3/soc.h | 20 +++++++++++++++++
2 files changed, 57 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
index 19c3995..52bc731 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
@@ -9,6 +9,7 @@
#include <asm/system.h>
#include <asm/armv8/mmu.h>
#include <asm/io.h>
+#include <asm/arch-fsl-lsch3/soc.h>
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
#include <fsl_debug_server.h>
#include <fsl-mc/fsl_mc.h>
@@ -22,6 +23,35 @@

DECLARE_GLOBAL_DATA_PTR;

+static struct cpu_type cpu_type_list[] = {
+#ifdef CONFIG_LS2085A
+ CPU_TYPE_ENTRY(LS2085, LS2085, 8),
+ CPU_TYPE_ENTRY(LS2080, LS2080, 8),
+ CPU_TYPE_ENTRY(LS2045, LS2045, 4),
+#endif
+};
+
+void cpu_name(char *name)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+ unsigned int i, svr, ver;
+
+ svr = in_le32(&gur->svr);
+ ver = SVR_SOC_VER(svr);
+
+ for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++)
+ if ((cpu_type_list[i].soc_ver & SVR_WO_E) == ver) {
+ strcpy(name, cpu_type_list[i].name);
+
+ if (IS_E_PROCESSOR(svr))
+ strcat(name, "E");
+ break;
+ }
+
+ if (i == ARRAY_SIZE(cpu_type_list))
+ strcpy(name, "unknown");
+}
+
#ifndef CONFIG_SYS_DCACHE_OFF
/*
* To start MMU before DDR is available, we create MMU table in SRAM.
@@ -380,6 +410,13 @@ int print_cpuinfo(void)
unsigned int i, core;
u32 type;

+ puts("SoC: ");
+
+ cpu_name(buf);
+ printf(" %s (0x%x)\n", buf, in_le32(&gur->svr));
+
+ memset((u8 *)buf, 0x00, ARRAY_SIZE(buf));
+
get_sys_info(&sysinfo);
puts("Clock Configuration:");
for_each_cpu(i, core, cpu_numcores(), cpu_mask()) {
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/soc.h b/arch/arm/include/asm/arch-fsl-lsch3/soc.h
index 16b723d..9a29272 100644
--- a/arch/arm/include/asm/arch-fsl-lsch3/soc.h
+++ b/arch/arm/include/asm/arch-fsl-lsch3/soc.h
@@ -4,5 +4,25 @@
* SPDX-License-Identifier: GPL-2.0+
*/

+struct cpu_type {
+ char name[15];
+ u32 soc_ver;
+ u32 num_cores;
+};
+
+#define CPU_TYPE_ENTRY(n, v, nc) \
+ { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc)}
+
+#define SVR_WO_E 0xFFFFFE
+#define SVR_LS2045 0x870120
+#define SVR_LS2080 0x870110
+#define SVR_LS2085 0x870100
+
+#define SVR_MAJ(svr) (((svr) >> 4) & 0xf)
+#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))
+
void fsl_lsch3_early_init_f(void);
+void cpu_name(char *name);

--
1.9.1