powerpc/t1040qds: Add support of SD boot for T1040QDS Board

Add support of 2 stage SD boot loader using SPL framework.
here, PBL initialise the internal SRAM and copy SPL(160KB). This further initialise DDR using SPD environment and copy u-boot(768 KB) from NAND to DDR. Finally SPL transer control to u-boot.

Initialise/create followings required for SPL framework
- Add spl.c which defines board_init_f, board_init_r
- Update tlb and ddr accordingly

Add T1040QDS_SDCARD_defconfig
Update t1040_pbi.cfg to support errata A-007662, A-008007 and LAW for CPC1

Signed-off-by Vijay Rai <[email protected]>

---
changes from v1:
-Updated Kconfig to support SPL option for T1040QDS

 arch/powerpc/cpu/mpc85xx/Kconfig       |    1 +
 board/freescale/t1040qds/MAINTAINERS   |    5 ++
 board/freescale/t1040qds/Makefile      |   10 ++-
 board/freescale/t1040qds/ddr.c         |    5 +-
 board/freescale/t1040qds/spl.c         |  155 ++++++++++++++++++++++++++++++++
 board/freescale/t1040qds/t1040_pbi.cfg |   16 +++-
 board/freescale/t1040qds/t1040qds.c    |    6 +-
 board/freescale/t1040qds/tlb.c         |   11 +++
 configs/T1040QDS_SDCARD_defconfig      |    5 ++
 include/configs/T1040QDS.h             |   79 +++++++++++++---
 10 files changed, 273 insertions(+), 20 deletions(-)
 create mode 100644 board/freescale/t1040qds/spl.c
 create mode 100644 configs/T1040QDS_SDCARD_defconfig

board/freescale/t1040qds/spl.c new file +83 -0

+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <ns16550.h>
+#include <nand.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <spi_flash.h>
+#include "../common/qixis.h"
+#include "t1040qds_qixis.h"
+#include <asm/mpc85xx_gpio.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+phys_size_t get_effective_memsize(void)
+{
+	return CONFIG_SYS_L3_SIZE;
+}
+
+unsigned long get_board_sys_clk(void)
+{
+	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
+
+	switch (sysclk_conf & 0x0F) {
+	case QIXIS_SYSCLK_64:
+		return 64000000;
+	case QIXIS_SYSCLK_83:
+		return 83333333;
+	case QIXIS_SYSCLK_100:
+		return 100000000;
+	case QIXIS_SYSCLK_125:
+		return 125000000;
+	case QIXIS_SYSCLK_133:
+		return 133333333;
+	case QIXIS_SYSCLK_150:
+		return 150000000;
+	case QIXIS_SYSCLK_160:
+		return 160000000;
+	case QIXIS_SYSCLK_166:
+		return 166666666;
+	}
+	return 66666666;
+}
+
+unsigned long get_board_ddr_clk(void)
+{
+	u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
+
+	switch ((ddrclk_conf & 0x30) >> 4) {
+	case QIXIS_DDRCLK_100:
+		return 100000000;
+	case QIXIS_DDRCLK_125:
+		return 125000000;
+	case QIXIS_DDRCLK_133:
+		return 133333333;
+	}
+	return 66666666;
+}
+
+#define FSL_CORENET_CCSR_PORSR1_RCW_MASK	0xFF800000
+void board_init_f(ulong bootflag)
+{
+	u32 plat_ratio, sys_clk, uart_clk;
+#ifdef CONFIG_SPL_NAND_BOOT
+	u32 porsr1, pinctl;
+#endif
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+#ifdef CONFIG_SPL_NAND_BOOT
+	/*
+	 * There is T1040 SoC issue where NOR, FPGA are inaccessible during
+	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
+	 * This workaround changes RCW source to make all signals enabled.
+	 */
+	porsr1 = in_be32(&gur->porsr1);
+	pinctl = ((porsr1 & ~(FSL_CORENET_CCSR_PORSR1_RCW_MASK)) | 0x24800000);
+	out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + 0x20000), pinctl);
+#endif
+

board/freescale/t1040qds/t1040qds.c +0 -0

index 13285be..a086e47 100644
@@ -279,7 +279,11 @@ void qixis_dump_switch(void)
 

include/configs/T1040QDS.h +62 -12

index 6b396bb..c0ad90e 100644
@@ -32,11 +32,46 @@
 #define CONFIG_DISPLAY_BOARDINFO
 
 #ifdef CONFIG_RAMBOOT_PBL
-#define CONFIG_RAMBOOT_TEXT_BASE	CONFIG_SYS_TEXT_BASE
-#define CONFIG_RESET_VECTOR_ADDRESS	0xfffffffc
-#define CONFIG_SYS_FSL_PBL_PBI board/freescale/t1040qds/t1040_pbi.cfg
-#define CONFIG_SYS_FSL_PBL_RCW board/freescale/t1040qds/t1040_rcw.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/t104xrdb/t104x_pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/t104xrdb/t1040_rcw.cfg
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_TARGET		"u-boot-with-spl.bin"
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
+#define CONFIG_FSL_LAW                 /* Use common FSL init code */
+#define CONFIG_SYS_TEXT_BASE		0x30001000
+#define CONFIG_SPL_TEXT_BASE		0xFFFD8000
+#define CONFIG_SPL_PAD_TO		0x40000
+#define CONFIG_SPL_MAX_SIZE		0x28000
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SPL_SKIP_RELOCATE
+#define CONFIG_SPL_COMMON_INIT_DDR
+#define CONFIG_SYS_CCSR_DO_NOT_RELOCATE
+#define CONFIG_SYS_NO_FLASH
 #endif
+#define RESET_VECTOR_OFFSET		0x27FFC
+#define BOOT_PAGE_OFFSET		0x27000
+
+#ifdef CONFIG_SDCARD
+#define	CONFIG_RESET_VECTOR_ADDRESS		0x30000FFC
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_MMC_MINIMAL
+#define CONFIG_SYS_MMC_U_BOOT_SIZE	(768 << 10)
+#define CONFIG_SYS_MMC_U_BOOT_DST	(0x30000000)
+#define CONFIG_SYS_MMC_U_BOOT_START	(0x30000000)
+#define CONFIG_SYS_MMC_U_BOOT_OFFS	(260 << 10)
+#define CONFIG_SYS_LDSCRIPT	"arch/powerpc/cpu/mpc85xx/u-boot.lds"
+#ifndef CONFIG_SPL_BUILD
+#define	CONFIG_SYS_MPC85XX_NO_RESETVEC
+#endif
+#define CONFIG_SPL_MMC_BOOT
+#endif
+
 
 /* High Level Configuration Options */
 #define CONFIG_BOOKE

@@ -75,15 +110,12 @@
 
 #define CONFIG_ENV_OVERWRITE
 
-#ifdef CONFIG_SYS_NO_FLASH
-#define CONFIG_ENV_IS_NOWHERE
-#else
+#ifndef CONFIG_SYS_NO_FLASH
 #define CONFIG_FLASH_CFI_DRIVER
 #define CONFIG_SYS_FLASH_CFI
 #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
 #endif
 
-#ifndef CONFIG_SYS_NO_FLASH
 #if defined(CONFIG_SPIFLASH)
 #define CONFIG_SYS_EXTRA_ENV_RELOC
 #define CONFIG_ENV_IS_IN_SPI_FLASH

@@ -99,7 +131,7 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV          0
 #define CONFIG_ENV_SIZE			0x2000
-#define CONFIG_ENV_OFFSET		(512 * 1658)
+#define CONFIG_ENV_OFFSET		(512 * 0x800)
 #elif defined(CONFIG_NAND)
 #define CONFIG_SYS_EXTRA_ENV_RELOC
 #define CONFIG_ENV_IS_IN_NAND

@@ -152,6 +184,17 @@ unsigned long get_board_ddr_clk(void);
  */
 #define CONFIG_SYS_INIT_L3_ADDR		0xFFFC0000
 
+#define CONFIG_SYS_INIT_L3_ADDR		0xFFFC0000
+#define CONFIG_SYS_L3_SIZE		256 << 10
+#define CONFIG_SPL_GD_ADDR		(CONFIG_SYS_INIT_L3_ADDR + 32 * 1024)
+#ifdef CONFIG_RAMBOOT_PBL
+#define CONFIG_ENV_ADDR			(CONFIG_SPL_GD_ADDR + 4 * 1024)
+#endif
+#define CONFIG_SPL_RELOC_MALLOC_ADDR	(CONFIG_SPL_GD_ADDR + 12 * 1024)
+#define CONFIG_SPL_RELOC_MALLOC_SIZE	(30 << 10)
+#define CONFIG_SPL_RELOC_STACK		(CONFIG_SPL_GD_ADDR + 64 * 1024)
+#define CONFIG_SPL_RELOC_STACK_SIZE	(22 << 10)
+
 #define CONFIG_SYS_DCSRBAR		0xf0000000
 #define CONFIG_SYS_DCSRBAR_PHYS		0xf00000000ull
 

@@ -362,7 +405,11 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_CS2_FTIM3		CONFIG_SYS_NAND_FTIM3
 #endif
 
-#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SPL_TEXT_BASE
+#else
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE	/* start of monitor */
+#endif
 
 #if defined(CONFIG_RAMBOOT_PBL)
 #define CONFIG_SYS_RAMBOOT

@@ -410,7 +457,9 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_NS16550_COM3	(CONFIG_SYS_CCSRBAR+0x11D500)
 #define CONFIG_SYS_NS16550_COM4	(CONFIG_SYS_CCSRBAR+0x11D600)
 #define CONFIG_SERIAL_MULTI		/* Enable both serial ports */
+#ifndef CONFIG_SPL_BUILD
 #define CONFIG_SYS_CONSOLE_IS_IN_ENV	/* determine from environment */
+#endif
 
 /* Use the HUSH parser */
 #define CONFIG_SYS_HUSH_PARSER

@@ -634,15 +683,21 @@ unsigned long get_board_ddr_clk(void);
  * 0x2000 (16 blocks), 8 + 1650 + 16 = 1674, enlarge it to 1680.
  */
 #define CONFIG_SYS_QE_FMAN_FW_IN_MMC
-#define CONFIG_SYS_FMAN_FW_ADDR	(512 * 1680)
+#define CONFIG_SYS_FMAN_FW_ADDR	(512 * 0x820)
 #elif defined(CONFIG_NAND)
 #define CONFIG_SYS_QE_FMAN_FW_IN_NAND
-#define CONFIG_SYS_FMAN_FW_ADDR	(8 * CONFIG_SYS_NAND_BLOCK_SIZE)
+#define CONFIG_SYS_FMAN_FW_ADDR	(5 * CONFIG_SYS_NAND_BLOCK_SIZE)
 #else
 #define CONFIG_SYS_QE_FMAN_FW_IN_NOR
 #define CONFIG_SYS_FMAN_FW_ADDR		0xEFF00000
+#endif