replaces the at91bootstrap code with SPL code. make the spl image with: ./tools/mkimage -T atmelimage -d spl/u-boot-spl.bin spl/boot.bin
this writes the length of the spl image into the 6th execption vector. This is needed from the ROM bootloader.
Signed-off-by: Heiko Schocher hs@denx.de
---
Changes in v2: - rename function "nand_erase_one" to "spl_nand_erase_one" as Scott Wood suggested - add comment from Andreas Biessmann: rename "MPDDRC_CR_EBISHARE" to "MPDDRC_CR_DQMS_SHARED"
arch/arm/Kconfig | 1 + board/siemens/corvus/board.c | 109 ++++++++++++++++++++++++++++++++++++++----- configs/corvus_defconfig | 5 +- include/configs/corvus.h | 54 +++++++++++++++++++-- 4 files changed, 151 insertions(+), 18 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index abe1317..ff2d84c 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -125,6 +125,7 @@ config TARGET_PM9G45 bool "Support pm9g45"
config TARGET_CORVUS + select SUPPORT_SPL bool "Support corvus"
config TARGET_TAURUS diff --git a/board/siemens/corvus/board.c b/board/siemens/corvus/board.c index f1e93ef..0a11540 100644 --- a/board/siemens/corvus/board.c +++ b/board/siemens/corvus/board.c @@ -31,12 +31,10 @@
DECLARE_GLOBAL_DATA_PTR;
-#ifdef CONFIG_CMD_NAND static void corvus_nand_hw_init(void) { struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; - struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; unsigned long csa;
/* Enable CS3 */ @@ -63,22 +61,111 @@ static void corvus_nand_hw_init(void) AT91_SMC_MODE_TDF_CYCLE(3), &smc->cs[3].mode);
- writel(1 << ATMEL_ID_PIOC, &pmc->pcer); - - /* Configure RDY/BSY */ - at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + at91_periph_clk_enable(ATMEL_ID_PIOC);
/* Enable NandFlash */ at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); } + +#if defined(CONFIG_SPL_BUILD) +#include <spl.h> +#include <nand.h> + +void at91_spl_board_init(void) +{ + /* + * For on the sam9m10g45ek board, the chip wm9711 stay in the test + * mode, so it need do some action to exit mode. + */ + at91_set_gpio_output(AT91_PIN_PD7, 0); + at91_set_gpio_output(AT91_PIN_PD8, 0); + at91_set_pio_pullup(AT91_PIO_PORTD, 7, 1); + at91_set_pio_pullup(AT91_PIO_PORTD, 8, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1); + at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1); + + corvus_nand_hw_init(); + + /* Configure recovery button PINs */ + at91_set_gpio_input(AT91_PIN_PB7, 1); + + /* check if button is pressed */ + if (at91_get_gpio_value(AT91_PIN_PB7) == 0) { + u32 boot_device; + + debug("Recovery button pressed\n"); + boot_device = spl_boot_device(); + switch (boot_device) { +#ifdef CONFIG_SPL_NAND_SUPPORT + case BOOT_DEVICE_NAND: + nand_init(); + spl_nand_erase_one(0, 0); + break; #endif + } + } +}
-#ifdef CONFIG_CMD_USB -static void taurus_usb_hw_init(void) +#include <asm/arch/atmel_mpddrc.h> +static void ddr2_conf(struct atmel_mpddr *ddr2) +{ + ddr2->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM); + + ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 | + ATMEL_MPDDRC_CR_NR_ROW_14 | + ATMEL_MPDDRC_CR_DIC_DS | + ATMEL_MPDDRC_CR_DQMS_SHARED | + ATMEL_MPDDRC_CR_CAS_DDR_CAS3); + ddr2->rtr = 0x24b; + + ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |/* 6*7.5 = 45 ns */ + 2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |/* 2*7.5 = 15 ns */ + 2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET | /* 2*7.5 = 15 ns */ + 8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET | /* 8*7.5 = 75 ns */ + 2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET | /* 2*7.5 = 15 ns */ + 1 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET | /* 1*7.5= 7.5 ns*/ + 1 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET | /* 1 clk cycle */ + 2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET); /* 2 clk cycles */ + + ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET | /* 2*7.5 = 15 ns */ + 200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET | + 16 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET | + 14 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET); + + ddr2->tpr2 = (1 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET | + 0 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET | + 7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET | + 2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET); +} + +void mem_init(void) { struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX; + struct atmel_mpddr ddr2; + unsigned long csa; + + ddr2_conf(&ddr2);
- writel(1 << ATMEL_ID_PIODE, &pmc->pcer); + /* enable DDR2 clock */ + writel(0x4, &pmc->scer); + + /* Chip select 1 is for DDR2/SDRAM */ + csa = readl(&mat->ebicsa); + csa |= AT91_MATRIX_EBI_CS1A_SDRAMC; + csa &= ~AT91_MATRIX_EBI_VDDIOMSEL_3_3V; + writel(csa, &mat->ebicsa); + + /* DDRAM2 Controller initialize */ + ddr2_init(ATMEL_BASE_CS6, &ddr2); +} +#endif + +#ifdef CONFIG_CMD_USB +static void taurus_usb_hw_init(void) +{ + at91_periph_clk_enable(ATMEL_ID_PIODE);
at91_set_gpio_output(AT91_PIN_PD1, 0); at91_set_gpio_output(AT91_PIN_PD3, 0); @@ -88,10 +175,8 @@ static void taurus_usb_hw_init(void) #ifdef CONFIG_MACB static void corvus_macb_hw_init(void) { - struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; - /* Enable clock */ - writel(1 << ATMEL_ID_EMAC, &pmc->pcer); + at91_periph_clk_enable(ATMEL_ID_EMAC);
/* * Disable pull-up on: diff --git a/configs/corvus_defconfig b/configs/corvus_defconfig index 3fc8edb..5d60847 100644 --- a/configs/corvus_defconfig +++ b/configs/corvus_defconfig @@ -1,3 +1,4 @@ +CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9M10G45,SYS_USE_NANDFLASH" -CONFIG_ARM=y -CONFIG_TARGET_CORVUS=y ++S:CONFIG_ARM=y ++S:CONFIG_TARGET_CORVUS=y diff --git a/include/configs/corvus.h b/include/configs/corvus.h index eb1584d..5b50c1d 100644 --- a/include/configs/corvus.h +++ b/include/configs/corvus.h @@ -19,7 +19,6 @@ #define MACH_TYPE_CORVUS 2066
#define CONFIG_SYS_GENERIC_BOARD - /* * Warning: changing CONFIG_SYS_TEXT_BASE requires * adapting the initial boot program. @@ -27,7 +26,7 @@ * hex number here! */
-#define CONFIG_SYS_TEXT_BASE 0x73f00000 +#define CONFIG_SYS_TEXT_BASE 0x72000000
#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */
@@ -107,8 +106,6 @@ /* our CLE is AD22 */ #define CONFIG_SYS_NAND_MASK_CLE (1 << 22) #define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14 -#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC8 - #endif
/* Ethernet */ @@ -159,5 +156,54 @@ */ #define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + \ 128*1024, 0x1000) +/* Defines for SPL */ +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_TEXT_BASE 0x300000 +#define CONFIG_SPL_MAX_SIZE (12 * 1024) +#define CONFIG_SPL_STACK (16 * 1024) + +#define CONFIG_SPL_BSS_START_ADDR CONFIG_SPL_MAX_SIZE +#define CONFIG_SPL_BSS_MAX_SIZE (2 * 1024) + +#define CONFIG_SPL_LIBCOMMON_SUPPORT +#define CONFIG_SPL_LIBGENERIC_SUPPORT +#define CONFIG_SPL_SERIAL_SUPPORT + +#define CONFIG_SPL_BOARD_INIT +#define CONFIG_SPL_GPIO_SUPPORT +#define CONFIG_SYS_NAND_ENABLE_PIN_SPL (2*32 + 14) +#define CONFIG_SPL_NAND_SUPPORT +#define CONFIG_SPL_NAND_DRIVERS +#define CONFIG_SPL_NAND_BASE +#define CONFIG_SPL_NAND_ECC +#define CONFIG_SPL_NAND_RAW_ONLY +#define CONFIG_SPL_NAND_SOFTECC +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x20000 +#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x80000 +#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE +#define CONFIG_SYS_NAND_U_BOOT_DST CONFIG_SYS_TEXT_BASE +#define CONFIG_SYS_NAND_5_ADDR_CYCLE + +#define CONFIG_SYS_NAND_SIZE (256*1024*1024) +#define CONFIG_SYS_NAND_PAGE_SIZE 2048 +#define CONFIG_SYS_NAND_BLOCK_SIZE (128*1024) +#define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \ + CONFIG_SYS_NAND_PAGE_SIZE) +#define CONFIG_SYS_NAND_BAD_BLOCK_POS NAND_LARGE_BADBLOCK_POS +#define CONFIG_SYS_NAND_ECCSIZE 256 +#define CONFIG_SYS_NAND_ECCBYTES 3 +#define CONFIG_SYS_NAND_OOBSIZE 64 +#define CONFIG_SYS_NAND_ECCPOS { 40, 41, 42, 43, 44, 45, 46, 47, \ + 48, 49, 50, 51, 52, 53, 54, 55, \ + 56, 57, 58, 59, 60, 61, 62, 63, } + +#define CONFIG_SPL_ATMEL_SIZE +#define CONFIG_SYS_MASTER_CLOCK 132096000 +#define AT91_PLL_LOCK_TIMEOUT 1000000 +#define CONFIG_SYS_AT91_PLLA 0x20c73f03 +#define CONFIG_SYS_MCKR 0x1301 +#define CONFIG_SYS_MCKR_CSS 0x1302 + +#define ATMEL_BASE_MPDDRC ATMEL_BASE_DDRSDRC0
#endif