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From 27072274450ea8de1994744782397452b99814cc Mon Sep 17 00:00:00 2001
From: Steve Sakoman <steve@sakoman.com>
Date: Wed, 3 Feb 2010 12:26:30 -0800
Subject: [PATCH 05/37] OMAP3: add entry for rev 3.1.2, check and display max cpu clock for rev > 3.0
---
cpu/arm_cortexa8/omap3/sys_info.c | 24 ++++++++++++++++++++++--
include/asm-arm/arch-omap3/cpu.h | 8 +++++++-
include/asm-arm/arch-omap3/omap3.h | 3 ++-
3 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/cpu/arm_cortexa8/omap3/sys_info.c b/cpu/arm_cortexa8/omap3/sys_info.c
index 08fb32e..e227f67 100644
--- a/cpu/arm_cortexa8/omap3/sys_info.c
+++ b/cpu/arm_cortexa8/omap3/sys_info.c
@@ -39,7 +39,10 @@ static char *rev_s[CPU_3XX_MAX_REV] = {
"2.0",
"2.1",
"3.0",
- "3.1"};
+ "3.1",
+ "UNKNOWN",
+ "UNKNOWN",
+ "3.1.2"};
/*****************************************************************
* dieid_num_r(void) - read and set die ID
@@ -104,6 +107,16 @@ u32 get_cpu_rev(void)
}
}
+/*****************************************************************
+ * get_sku_id(void) - read sku_id to get info on max clock rate
+ *****************************************************************/
+u32 get_sku_id(void)
+{
+ struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
+ return (readl(&id_base->sku_id) & SKUID_CLK_MASK);
+}
+
+
/****************************************************
* is_mem_sdr() - return 1 if mem type in use is SDR
****************************************************/
@@ -291,9 +304,16 @@ int print_cpuinfo (void)
sec_s = "?";
}
- printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n",
+ printf("OMAP%s-%s ES%s, CPU-OPP2, L3-165MHz, ",
cpu_s, sec_s, rev_s[get_cpu_rev()]);
+ printf("Max clock-");
+ if ((get_cpu_rev() >= CPU_3XX_ES31) && (get_sku_id() == SKUID_CLK_720MHZ))
+ printf("720Mhz\n");
+ else printf("600Mhz\n");
+
+
+
return 0;
}
#endif /* CONFIG_DISPLAY_CPUINFO */
diff --git a/include/asm-arm/arch-omap3/cpu.h b/include/asm-arm/arch-omap3/cpu.h
index aa8de32..f769571 100644
--- a/include/asm-arm/arch-omap3/cpu.h
+++ b/include/asm-arm/arch-omap3/cpu.h
@@ -72,7 +72,8 @@ struct ctrl_id {
u8 res1[0x4];
u32 idcode; /* 0x04 */
u32 prod_id; /* 0x08 */
- u8 res2[0x0C];
+ u32 sku_id; /* 0x0c */
+ u8 res2[0x08];
u32 die_id_0; /* 0x18 */
u32 die_id_1; /* 0x1C */
u32 die_id_2; /* 0x20 */
@@ -89,6 +90,11 @@ struct ctrl_id {
#define HS_DEVICE 0x2
#define GP_DEVICE 0x3
+/* device speed */
+#define SKUID_CLK_MASK 0xf
+#define SKUID_CLK_600MHZ 0x0
+#define SKUID_CLK_720MHZ 0x8
+
#define GPMC_BASE (OMAP34XX_GPMC_BASE)
#define GPMC_CONFIG_CS0 0x60
#define GPMC_CONFIG_CS0_BASE (GPMC_BASE + GPMC_CONFIG_CS0)
diff --git a/include/asm-arm/arch-omap3/omap3.h b/include/asm-arm/arch-omap3/omap3.h
index 12815f6..1349b8b 100644
--- a/include/asm-arm/arch-omap3/omap3.h
+++ b/include/asm-arm/arch-omap3/omap3.h
@@ -176,7 +176,8 @@ struct gpio {
#define CPU_3XX_ES21 2
#define CPU_3XX_ES30 3
#define CPU_3XX_ES31 4
-#define CPU_3XX_MAX_REV (CPU_3XX_ES31 + 1)
+#define CPU_3XX_ES312 7
+#define CPU_3XX_MAX_REV 8
#define CPU_3XX_ID_SHIFT 28
--
1.6.6.1
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