fsl-layerscape: Add fsl_esdhc peripheral clock support

Add esdhc peripheral clock support
for NXP layerscape platforms: LS1046ARDB, LS1043ARDB,
LS1012ARDB, LS1028ARDB, LS1088ARDB, LX2160ARDB

Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
index 9ece4b9..df4df9a 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
@@ -22,10 +22,12 @@ DECLARE_GLOBAL_DATA_PTR;
 void get_sys_info(struct sys_info *sys_info)
 {
        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
-#if (defined(CONFIG_FSL_ESDHC) &&\
-       defined(CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK)) ||\
-       defined(CONFIG_SYS_DPAA_FMAN)
-
+/* rcw_tmp is needed to get FMAN clock, or to get cluster group A
+ * mux 2 clock for LS1043A/LS1046A.
+ */
+#if defined(CONFIG_SYS_DPAA_FMAN) || \
+           defined(CONFIG_TARGET_LS1046ARDB) || \
+           defined(CONFIG_TARGET_LS1043ARDB)
        u32 rcw_tmp;
 #endif
        struct ccsr_clk *clk = (void *)(CONFIG_SYS_FSL_CLK_ADDR);
@@ -122,32 +124,32 @@ void get_sys_info(struct sys_info *sys_info)
        }
 #endif
 
+#ifdef CONFIG_FSL_ESDHC
 #define HWA_CGA_M2_CLK_SEL     0x00000007
 #define HWA_CGA_M2_CLK_SHIFT   0
-#ifdef CONFIG_FSL_ESDHC
-#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+#if defined(CONFIG_TARGET_LS1046ARDB) || defined(CONFIG_TARGET_LS1043ARDB)
        rcw_tmp = in_be32(&gur->rcwsr[15]);
        switch ((rcw_tmp & HWA_CGA_M2_CLK_SEL) >> HWA_CGA_M2_CLK_SHIFT) {
        case 1:
-               sys_info->freq_sdhc = freq_c_pll[1];
+               sys_info->freq_cga_m2 = freq_c_pll[1];
                break;
+#if defined(CONFIG_TARGET_LS1046ARDB)
        case 2:
-               sys_info->freq_sdhc = freq_c_pll[1] / 2;
+               sys_info->freq_cga_m2 = freq_c_pll[1] / 2;
                break;
+#endif
        case 3:
-               sys_info->freq_sdhc = freq_c_pll[1] / 3;
+               sys_info->freq_cga_m2 = freq_c_pll[1] / 3;
                break;
+#if defined(CONFIG_TARGET_LS1046ARDB)
        case 6:
-               sys_info->freq_sdhc = freq_c_pll[0] / 2;
+               sys_info->freq_cga_m2 = freq_c_pll[0] / 2;
                break;
+#endif
        default:
-               printf("Error: Unknown ESDHC clock select!\n");
+               printf("Error: Unknown peripheral clock select!\n");
                break;
        }
-#else
-       sys_info->freq_sdhc = (sys_info->freq_systembus /
-                               CONFIG_SYS_FSL_PCLK_DIV) /
-                               CONFIG_SYS_FSL_SDHC_CLK_DIV;
 #endif
 #endif
 
@@ -183,9 +185,22 @@ int get_clocks(void)
        gd->mem_clk = sys_info.freq_ddrbus;
 
 #ifdef CONFIG_FSL_ESDHC
-       gd->arch.sdhc_clk = sys_info.freq_sdhc;
+#if defined(CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK)
+#if defined(CONFIG_TARGET_LS1046ARDB)
+       gd->arch.sdhc_clk = sys_info.freq_cga_m2 / 2;
+#endif
+#if defined(CONFIG_TARGET_LS1043ARDB)
+       gd->arch.sdhc_clk = sys_info.freq_cga_m2;
+#endif
+#if defined(CONFIG_TARGET_LS1012ARDB)
+       gd->arch.sdhc_clk = sys_info.freq_systembus;
+#endif
+#else
+       gd->arch.sdhc_clk = (sys_info.freq_systembus /
+                       CONFIG_SYS_FSL_PCLK_DIV) /
+                       CONFIG_SYS_FSL_SDHC_CLK_DIV;
+#endif
 #endif
-
        if (gd->cpu_clk != 0)
                return 0;
        else

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
index a5540f2..b3e6732 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
@@ -64,6 +64,9 @@ void get_sys_info(struct sys_info *sys_info)
        };
 
        uint i, cluster;
+#if defined(CONFIG_TARGET_LS1028ARDB) || defined(CONFIG_TARGET_LS1088ARDB)
+       uint rcw_tmp;
+#endif
        uint freq_c_pll[CONFIG_SYS_FSL_NUM_CC_PLLS];
        uint ratio[CONFIG_SYS_FSL_NUM_CC_PLLS];
        unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
@@ -127,8 +130,39 @@ void get_sys_info(struct sys_info *sys_info)
        sys_info->freq_localbus = sys_info->freq_systembus /
                                                CONFIG_SYS_FSL_IFC_CLK_DIV;
 #endif
-}
 
+#if defined(CONFIG_TARGET_LS1028ARDB) || defined(CONFIG_TARGET_LS1088ARDB)
+#define HWA_CGA_M2_CLK_SEL      0x00380000
+#define HWA_CGA_M2_CLK_SHIFT    19
+       rcw_tmp = in_le32(&gur->rcwsr[5]);
+       switch ((rcw_tmp & HWA_CGA_M2_CLK_SEL) >> HWA_CGA_M2_CLK_SHIFT) {
+       case 1:
+               sys_info->freq_cga_m2 = freq_c_pll[1];
+               break;
+       case 2:
+               sys_info->freq_cga_m2 = freq_c_pll[1] / 2;
+               break;
+       case 3:
+               sys_info->freq_cga_m2 = freq_c_pll[1] / 3;
+               break;
+       case 4:
+               sys_info->freq_cga_m2 = freq_c_pll[1] / 4;
+               break;
+       case 6:
+               sys_info->freq_cga_m2 = freq_c_pll[0] / 2;
+               break;
+       case 7:
+               sys_info->freq_cga_m2 = freq_c_pll[0] / 3;
+               break;
+       default:
+               printf("Error: Unknown peripheral clock select!\n");
+               break;
+       }
+#endif
+#if defined(CONFIG_TARGET_LX2160ARDB) || defined(CONFIG_TARGET_LS2080ARDB)
+       sys_info->freq_cga_m2 = sys_info->freq_systembus;
+#endif
+}
 
 int get_clocks(void)
 {
@@ -141,7 +175,16 @@ int get_clocks(void)
        gd->arch.mem2_clk = sys_info.freq_ddrbus2;
 #endif
 #if defined(CONFIG_FSL_ESDHC)
+#if defined(CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK)
+#if defined(CONFIG_TARGET_LS1028ARDB) || defined(CONFIG_TARGET_LX2160ARDB)
+       gd->arch.sdhc_clk = sys_info.freq_cga_m2 / 2;
+#endif
+#if defined(CONFIG_TARGET_LS2080ARDB) || defined(CONFIG_TARGET_LS1088ARDB)
+       gd->arch.sdhc_clk = sys_info.freq_cga_m2;
+#endif
+#else
        gd->arch.sdhc_clk = gd->bus_clk / CONFIG_SYS_FSL_SDHC_CLK_DIV;
+#endif
 #endif /* defined(CONFIG_FSL_ESDHC) */
 
        if (gd->cpu_clk != 0)

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 b4b7c34..3a59abb 100644 (file)
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -180,7 +180,7 @@ struct sys_info {
        unsigned long freq_systembus;
        unsigned long freq_ddrbus;
        unsigned long freq_localbus;
-       unsigned long freq_sdhc;
+       unsigned long freq_cga_m2;
 #ifdef CONFIG_SYS_DPAA_FMAN
        unsigned long freq_fman[CONFIG_SYS_NUM_FMAN];
 #endif

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 8a5446d..4f05047 100644 (file)
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -278,6 +278,7 @@ struct sys_info {
        /* frequency of platform PLL */
        unsigned long freq_systembus;
        unsigned long freq_ddrbus;
+       unsigned long freq_cga_m2;
 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
        unsigned long freq_ddrbus2;
 #endif