ARM: k2g: Add clock information

Add clock information for Galileo

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>

arch/arm/include/asm/ti-common/keystone_net.h

@@ -49,7 +49,11 @@
 #define MAC_ID_BASE_ADDR		CONFIG_KSNET_MAC_ID_BASE
 
 /* MDIO module input frequency */
+#ifdef CONFIG_SOC_K2G
+#define EMAC_MDIO_BUS_FREQ		(clk_get_rate(sys_clk0_3_clk))
+#else
 #define EMAC_MDIO_BUS_FREQ		(clk_get_rate(pass_pll_clk))
+#endif
 /* MDIO clock output frequency */
 #define EMAC_MDIO_CLOCK_FREQ		2500000	/* 2.5 MHz */
 

arch/arm/mach-keystone/clock.c

@@ -360,6 +360,10 @@ unsigned long clk_get_rate(unsigned int clk)
 		if (cpu_is_k2hk())
 			freq = pll_freq_get(DDR3B_PLL);
 		break;
+	case uart_pll_clk:
+		if (cpu_is_k2g())
+			freq = pll_freq_get(UART_PLL);
+		break;
 	case sys_clk0_1_clk:
 	case sys_clk0_clk:
 		freq = pll_freq_get(CORE_PLL) / pll0div_read(1);

arch/arm/mach-keystone/cmd_mon.c

@@ -37,7 +37,7 @@ static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-	freq = clk_get_rate(sys_clk0_6_clk);
+	freq = CONFIG_SYS_HZ_CLOCK;
 
 	addr = simple_strtoul(argv[1], NULL, 16);
 

arch/arm/mach-keystone/include/mach/clock-k2g.h

@@ -15,4 +15,6 @@
 #define DEV_SUPPORTED_SPEEDS	0xfff
 #define ARM_SUPPORTED_SPEEDS	0xfff
 
+#define KS2_CLK1_6 sys_clk0_6_clk
+
 #endif

arch/arm/mach-keystone/include/mach/clock.h

@@ -53,7 +53,8 @@
 	CLK(17, sys_clk1_6_clk)\
 	CLK(18, sys_clk1_12_clk)\
 	CLK(19, sys_clk2_clk)\
-	CLK(20, sys_clk3_clk)
+	CLK(20, sys_clk3_clk)\
+	CLK(21, uart_pll_clk)
 
 #include <asm/types.h>
 
@@ -91,6 +92,7 @@ enum ext_clk_e {
 	tetris_clk,
 	ddr3a_clk,
 	ddr3b_clk,
+	uart_clk,
 	ext_clk_count /* number of external clocks */
 };
 

board/ti/ks2_evm/board_k2g.c

@@ -9,6 +9,16 @@
 #include <common.h>
 #include <asm/arch/clock.h>
 
+#define SYS_CLK		24000000
+
+unsigned int external_clk[ext_clk_count] = {
+	[sys_clk]	=	SYS_CLK,
+	[pa_clk]	=	SYS_CLK,
+	[tetris_clk]	=	SYS_CLK,
+	[ddr3a_clk]	=	SYS_CLK,
+	[uart_clk]	=	SYS_CLK,
+};
+
 static struct pll_init_data main_pll_config = {MAIN_PLL, 100, 1, 4};
 static struct pll_init_data tetris_pll_config = {TETRIS_PLL, 100, 1, 4};
 static struct pll_init_data uart_pll_config = {UART_PLL, 64, 1, 4};

include/configs/ti_armv7_keystone2.h

@@ -68,9 +68,14 @@
 #endif
 #define CONFIG_SYS_NS16550_COM1		KS2_UART0_BASE
 #define CONFIG_SYS_NS16550_COM2		KS2_UART1_BASE
-#define CONFIG_SYS_NS16550_CLK		clk_get_rate(KS2_CLK1_6)
 #define CONFIG_CONS_INDEX		1
 
+#ifndef CONFIG_SOC_K2G
+#define CONFIG_SYS_NS16550_CLK		clk_get_rate(KS2_CLK1_6)
+#else
+#define CONFIG_SYS_NS16550_CLK		clk_get_rate(uart_pll_clk) / 2
+#endif
+
 /* SPI Configuration */
 #define CONFIG_SPI_FLASH_STMICRO
 #define CONFIG_DAVINCI_SPI
@@ -302,6 +307,10 @@
 /* we may include files below only after all above definitions */
 #include <asm/arch/hardware.h>
 #include <asm/arch/clock.h>
+#ifndef CONFIG_SOC_K2G
 #define CONFIG_SYS_HZ_CLOCK		clk_get_rate(KS2_CLK1_6)
+#else
+#define CONFIG_SYS_HZ_CLOCK		external_clk[sys_clk]
+#endif
 
 #endif /* __CONFIG_KS2_EVM_H */