Tegra30: Add common CPU (shared) files

These files are used by both SPL and main U-Boot.
Also made minor changes to shared Tegra code to support
T30 differences.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

arch/arm/cpu/tegra-common/ap.c

@@ -20,10 +20,14 @@
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */
+
+/* Tegra AP (Application Processor) code */
+
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/gp_padctrl.h>
 #include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clock.h>
 #include <asm/arch-tegra/fuse.h>
 #include <asm/arch-tegra/pmc.h>
 #include <asm/arch-tegra/scu.h>
@@ -58,6 +62,12 @@ int tegra_get_chip_type(void)
 			return TEGRA_SOC_T25;
 		}
 		break;
+	case CHIPID_TEGRA30:
+		switch (tegra_sku_id) {
+		case SKU_ID_T30:
+			return TEGRA_SOC_T30;
+		}
+		break;
 	}
 	/* unknown sku id */
 	return TEGRA_SOC_UNKNOWN;
@@ -93,7 +103,7 @@ static u32 get_odmdata(void)
 
 	u32 bct_start, odmdata;
 
-	bct_start = readl(AP20_BASE_PA_SRAM + NVBOOTINFOTABLE_BCTPTR);
+	bct_start = readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BCTPTR);
 	odmdata = readl(bct_start + BCT_ODMDATA_OFFSET);
 
 	return odmdata;
@@ -127,5 +137,5 @@ void s_init(void)
 		"orr	r0, r0, #0x41\n"
 		"mcr	p15, 0, r0, c1, c0, 1\n");
 
-	/* FIXME: should have ap20's L2 disabled too? */
+	/* FIXME: should have SoC's L2 disabled too? */
 }

arch/arm/cpu/tegra-common/board.c

@@ -54,16 +54,37 @@ unsigned int query_sdram_size(void)
 	reg = readl(&pmc->pmc_scratch20);
 	debug("pmc->pmc_scratch20 (ODMData) = 0x%08x\n", reg);
 
-	/* bits 31:28 in OdmData are used for RAM size  */
+#if defined(CONFIG_TEGRA20)
+	/* bits 30:28 in OdmData are used for RAM size on T20  */
+	reg &= 0x70000000;
+
 	switch ((reg) >> 28) {
 	case 1:
 		return 0x10000000;	/* 256 MB */
+	case 0:
 	case 2:
 	default:
 		return 0x20000000;	/* 512 MB */
 	case 3:
 		return 0x40000000;	/* 1GB */
 	}
+#else	/* Tegra30 */
+	/* bits 31:28 in OdmData are used for RAM size on T30  */
+	switch ((reg) >> 28) {
+	case 0:
+	case 1:
+	default:
+		return 0x10000000;	/* 256 MB */
+	case 2:
+		return 0x20000000;	/* 512 MB */
+	case 3:
+		return 0x30000000;	/* 768 MB */
+	case 4:
+		return 0x40000000;	/* 1GB */
+	case 8:
+		return 0x7ff00000;	/* 2GB - 1MB */
+	}
+#endif
 }
 
 int dram_init(void)
@@ -82,19 +103,27 @@ int checkboard(void)
 #endif	/* CONFIG_DISPLAY_BOARDINFO */
 
 static int uart_configs[] = {
-#if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
+#if defined(CONFIG_TEGRA20)
+ #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
 	FUNCMUX_UART1_UAA_UAB,
-#elif defined(CONFIG_TEGRA_UARTA_GPU)
+ #elif defined(CONFIG_TEGRA_UARTA_GPU)
 	FUNCMUX_UART1_GPU,
-#elif defined(CONFIG_TEGRA_UARTA_SDIO1)
+ #elif defined(CONFIG_TEGRA_UARTA_SDIO1)
 	FUNCMUX_UART1_SDIO1,
-#else
+ #else
 	FUNCMUX_UART1_IRRX_IRTX,
-#endif
+ #endif
 	FUNCMUX_UART2_IRDA,
 	-1,
 	FUNCMUX_UART4_GMC,
 	-1,
+#else	/* Tegra30 */
+	FUNCMUX_UART1_ULPI,	/* UARTA */
+	-1,
+	-1,
+	-1,
+	-1,
+#endif
 };
 
 /**

arch/arm/cpu/tegra-common/sys_info.c

@@ -22,12 +22,26 @@
  */
 
 #include <common.h>
+#include <linux/ctype.h>
 
 #ifdef CONFIG_DISPLAY_CPUINFO
+void upstring(char *s)
+{
+	while (*s) {
+		*s = toupper(*s);
+		s++;
+	}
+}
+
 /* Print CPU information */
 int print_cpuinfo(void)
 {
-	puts("TEGRA20\n");
+	char soc_name[10];
+
+	strncpy(soc_name, CONFIG_SYS_SOC, 10);
+	upstring(soc_name);
+	puts(soc_name);
+	puts("\n");
 
 	/* TBD: Add printf of major/minor rev info, stepping, etc. */
 	return 0;

arch/arm/cpu/tegra20-common/warmboot.c

@@ -46,7 +46,7 @@ DECLARE_GLOBAL_DATA_PTR;
  * This is the place in SRAM where the SDRAM parameters are stored. There
  * are 4 blocks, one for each RAM code
  */
-#define SDRAM_PARAMS_BASE	(AP20_BASE_PA_SRAM + 0x188)
+#define SDRAM_PARAMS_BASE	(NV_PA_BASE_SRAM + 0x188)
 
 /* TODO: If we later add support for the Misc GP controller, refactor this */
 union xm2cfga_reg {

arch/arm/cpu/tegra30-common/Makefile

+#
+# Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+#
+# (C) Copyright 2000-2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+include $(TOPDIR)/config.mk
+
+# The AVP is ARMv4T architecture so we must use special compiler
+# flags for any startup files it might use.
+
+LIB	= $(obj)lib$(SOC)-common.o
+
+COBJS-y	+= clock.o funcmux.o pinmux.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
+
+all:	$(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

arch/arm/cpu/tegra30-common/funcmux.c

+/*
+ * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Tegra30 high-level function multiplexing */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+
+int funcmux_select(enum periph_id id, int config)
+{
+	int bad_config = config != FUNCMUX_DEFAULT;
+
+	switch (id) {
+	case PERIPH_ID_UART1:
+		switch (config) {
+		case FUNCMUX_UART1_ULPI:
+			pinmux_set_func(PINGRP_ULPI_DATA0, PMUX_FUNC_UARTA);
+			pinmux_set_func(PINGRP_ULPI_DATA1, PMUX_FUNC_UARTA);
+			pinmux_set_func(PINGRP_ULPI_DATA2, PMUX_FUNC_UARTA);
+			pinmux_set_func(PINGRP_ULPI_DATA3, PMUX_FUNC_UARTA);
+			pinmux_tristate_disable(PINGRP_ULPI_DATA0);
+			pinmux_tristate_disable(PINGRP_ULPI_DATA1);
+			pinmux_tristate_disable(PINGRP_ULPI_DATA2);
+			pinmux_tristate_disable(PINGRP_ULPI_DATA3);
+			break;
+		}
+		break;
+
+	/* Add other periph IDs here as needed */
+
+	default:
+		debug("%s: invalid periph_id %d", __func__, id);
+		return -1;
+	}
+
+	if (bad_config) {
+		debug("%s: invalid config %d for periph_id %d", __func__,
+		      config, id);
+		return -1;
+	}
+	return 0;
+}

arch/arm/include/asm/arch-tegra/ap.h

@@ -23,67 +23,27 @@
 #include <asm/types.h>
 
 /* Stabilization delays, in usec */
-#define PLL_STABILIZATION_DELAY (300)
+#define PLL_STABILIZATION_DELAY	(300)
 #define IO_STABILIZATION_DELAY	(1000)
 
-#define NVBL_PLLP_KHZ	(216000)
-
 #define PLLX_ENABLED		(1 << 30)
 #define CCLK_BURST_POLICY	0x20008888
 #define SUPER_CCLK_DIVIDER	0x80000000
 
 /* Calculate clock fractional divider value from ref and target frequencies */
-#define CLK_DIVIDER(REF, FREQ)  ((((REF) * 2) / FREQ) - 2)
+#define CLK_DIVIDER(REF, FREQ)	((((REF) * 2) / FREQ) - 2)
 
 /* Calculate clock frequency value from reference and clock divider value */
-#define CLK_FREQUENCY(REF, REG)  (((REF) * 2) / (REG + 2))
+#define CLK_FREQUENCY(REF, REG)	(((REF) * 2) / (REG + 2))
 
 /* AVP/CPU ID */
 #define PG_UP_TAG_0_PID_CPU	0x55555555	/* CPU aka "a9" aka "mpcore" */
-#define PG_UP_TAG_0             0x0
+#define PG_UP_TAG_0		0x0
 
 #define CORESIGHT_UNLOCK	0xC5ACCE55;
 
-/* AP20-Specific Base Addresses */
-
-/* AP20 Base physical address of SDRAM. */
-#define AP20_BASE_PA_SDRAM      0x00000000
-/* AP20 Base physical address of internal SRAM. */
-#define AP20_BASE_PA_SRAM       0x40000000
-/* AP20 Size of internal SRAM (256KB). */
-#define AP20_BASE_PA_SRAM_SIZE  0x00040000
-/* AP20 Base physical address of flash. */
-#define AP20_BASE_PA_NOR_FLASH  0xD0000000
-/* AP20 Base physical address of boot information table. */
-#define AP20_BASE_PA_BOOT_INFO  AP20_BASE_PA_SRAM
-
-/*
- * Super-temporary stacks for EXTREMELY early startup. The values chosen for
- * these addresses must be valid on ALL SOCs because this value is used before
- * we are able to differentiate between the SOC types.
- *
- * NOTE: The since CPU's stack will eventually be moved from IRAM to SDRAM, its
- *       stack is placed below the AVP stack. Once the CPU stack has been moved,
- *       the AVP is free to use the IRAM the CPU stack previously occupied if
- *       it should need to do so.
- *
- * NOTE: In multi-processor CPU complex configurations, each processor will have
- *       its own stack of size CPU_EARLY_BOOT_STACK_SIZE. CPU 0 will have a
- *       limit of CPU_EARLY_BOOT_STACK_LIMIT. Each successive CPU will have a
- *       stack limit that is CPU_EARLY_BOOT_STACK_SIZE less then the previous
- *       CPU.
- */
-
-/* Common AVP early boot stack limit */
-#define AVP_EARLY_BOOT_STACK_LIMIT	\
-	(AP20_BASE_PA_SRAM + (AP20_BASE_PA_SRAM_SIZE/2))
-/* Common AVP early boot stack size */
-#define AVP_EARLY_BOOT_STACK_SIZE	0x1000
-/* Common CPU early boot stack limit */
-#define CPU_EARLY_BOOT_STACK_LIMIT	\
-	(AVP_EARLY_BOOT_STACK_LIMIT - AVP_EARLY_BOOT_STACK_SIZE)
-/* Common CPU early boot stack size */
-#define CPU_EARLY_BOOT_STACK_SIZE	0x1000
+/* AP base physical address of internal SRAM */
+#define NV_PA_BASE_SRAM		0x40000000
 
 #define EXCEP_VECTOR_CPU_RESET_VECTOR	(NV_PA_EVP_BASE + 0x100)
 #define CSITE_CPU_DBG0_LAR		(NV_PA_CSITE_BASE + 0x10FB0)