add extensions for the axm board: - power on LED on power up - press both recovery buttons on power up to enter recovery mode - detect 64 MiB and 128 MiB ramsize - PHY rest at reboot because of ATMEL bug - use siemens update concept - add axm default environment - set CONFIG_SPL_MAX_SIZE to 15k
Signed-off-by: Heiko Schocher hs@denx.de
---
Changes in v3: - add comments from Andreas Biessmann: - remove compile error
Changes in v2: - add comments from Andreas Biessmann: - set stack into second sram segment - fix some Coding Style issues - reworked "suspect code indent" warning - reworked update concept - rebase against 0d339cf9a969f0c249713d3697e735184f1bd955
board/siemens/taurus/taurus.c | 196 ++++++++++++++++++++++++++++++++++++++---- include/configs/taurus.h | 71 ++++++++++++++- 2 files changed, 249 insertions(+), 18 deletions(-)
diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c index 013dac2..781727e 100644 --- a/board/siemens/taurus/taurus.c +++ b/board/siemens/taurus/taurus.c @@ -12,6 +12,7 @@ * SPDX-License-Identifier: GPL-2.0+ */
+#include <command.h> #include <common.h> #include <asm/io.h> #include <asm/arch/at91sam9260_matrix.h> @@ -79,16 +80,48 @@ void matrix_init(void) &mat->scfg[3]); }
+#if defined(CONFIG_BOARD_AXM) +static int at91_is_recovery(void) +{ + if ((at91_get_gpio_value(AT91_PIN_PA26) == 0) && + (at91_get_gpio_value(AT91_PIN_PA27) == 0)) + return 1; + + return 0; +} +#elif defined(CONFIG_BOARD_TAURUS) +static int at91_is_recovery(void) +{ + if (at91_get_gpio_value(AT91_PIN_PA31) == 0) + return 1; + + return 0; +} +#endif + void at91_spl_board_init(void) { taurus_nand_hw_init(); at91_spi0_hw_init(TAURUS_SPI_MASK);
+#if defined(CONFIG_BOARD_AXM) + /* Configure LED PINs */ + at91_set_gpio_output(AT91_PIN_PA6, 0); + at91_set_gpio_output(AT91_PIN_PA8, 0); + at91_set_gpio_output(AT91_PIN_PA9, 0); + at91_set_gpio_output(AT91_PIN_PA10, 0); + at91_set_gpio_output(AT91_PIN_PA11, 0); + at91_set_gpio_output(AT91_PIN_PA12, 0); + /* Configure recovery button PINs */ + at91_set_gpio_input(AT91_PIN_PA26, 1); + at91_set_gpio_input(AT91_PIN_PA27, 1); +#elif defined(CONFIG_BOARD_TAURUS) at91_set_gpio_input(AT91_PIN_PA31, 1); +#endif
- /* check if button is pressed */ - if (at91_get_gpio_value(AT91_PIN_PA31) == 0) { + /* check for recovery mode */ + if (at91_is_recovery() == 1) { struct spi_flash *flash;
debug("Recovery button pressed\n"); @@ -108,35 +141,72 @@ void at91_spl_board_init(void) } }
-void mem_init(void) +#define SDRAM_BASE_CONF (AT91_SDRAMC_NR_13 | AT91_SDRAMC_CAS_3 \ + |AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \ + | AT91_SDRAMC_TWR_VAL(3) | AT91_SDRAMC_TRC_VAL(9) \ + | AT91_SDRAMC_TRP_VAL(3) | AT91_SDRAMC_TRCD_VAL(3) \ + | AT91_SDRAMC_TRAS_VAL(6) | AT91_SDRAMC_TXSR_VAL(10)) + +void sdramc_configure(unsigned int mask) { struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX; struct sdramc_reg setting;
at91_sdram_hw_init(); - setting.cr = (AT91_SDRAMC_NC_9 | - AT91_SDRAMC_NR_13 | - AT91_SDRAMC_CAS_3 | - AT91_SDRAMC_NB_4 | - AT91_SDRAMC_DBW_32 | - AT91_SDRAMC_TWR_VAL(3) | - AT91_SDRAMC_TRC_VAL(9) | - AT91_SDRAMC_TRP_VAL(3) | - AT91_SDRAMC_TRCD_VAL(3) | - AT91_SDRAMC_TRAS_VAL(6) | - AT91_SDRAMC_TXSR_VAL(10)); + setting.cr = SDRAM_BASE_CONF | mask; setting.mdr = AT91_SDRAMC_MD_SDRAM; setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000;
- writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC | AT91_MATRIX_VDDIOMSEL_3_3V | AT91_MATRIX_EBI_IOSR_SEL, &ma->ebicsa); + sdramc_initialize(ATMEL_BASE_CS1, &setting); } + +void mem_init(void) +{ + unsigned int ram_size = 0; + + /* Configure SDRAM for 128MB */ + sdramc_configure(AT91_SDRAMC_NC_10); + + /* Do memtest for 128MB */ + ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + + /* + * If 32MB or 16MB should be supported check also for + * expected mirroring at A16 and A17 + * To find mirror addresses depends how the collumns are connected + * at RAM (internaly or externaly) + * If the collumns are not in inverted order the mirror size effect + * behaves like normal SRAM with A0,A1,A2,etc. connected incremantal + */ + + /* Mirrors at A15 on ATMEL G20 SDRAM Controller with 64MB*/ + if (ram_size == 0x800) { + printf("\n\r 64MB"); + sdramc_configure(AT91_SDRAMC_NC_9); + } else { + /* Size already initialized */ + printf("\n\r 128MB"); + } +} #endif
#ifdef CONFIG_MACB +static void siemens_phy_reset(void) +{ + /* + * we need to reset PHY for 200us + * because of bug in ATMEL G20 CPU (undefined initial state of GPIO) + */ + if ((readl(AT91_ASM_RSTC_SR) & AT91_RSTC_RSTTYP) == + AT91_RSTC_RSTTYP_GENERAL) + at91_set_gpio_value(AT91_PIN_PA25, 0); /* reset eth switch */ +} + static void taurus_macb_hw_init(void) { /* Enable EMAC clock */ @@ -160,6 +230,8 @@ static void taurus_macb_hw_init(void) at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0); at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0);
+ siemens_phy_reset(); + at91_phy_reset();
at91_set_gpio_input(AT91_PIN_PA25, 1); /* ERST tri-state */ @@ -244,3 +316,97 @@ int board_eth_init(bd_t *bis) #endif return rc; } + +#if !defined(CONFIG_SPL_BUILD) +#if defined(CONFIG_BOARD_AXM) +/* + * Booting the Fallback Image. + * + * The function is used to provide and + * boot the image with the fallback + * parameters, incase if the faulty image + * in upgraded over the base firmware. + * + */ +static int upgrade_failure_fallback(void) +{ + char *partitionset_active = NULL; + char *rootfs = NULL; + char *rootfs_fallback = NULL; + char *kern_off; + char *kern_off_fb; + char *kern_size; + char *kern_size_fb; + + partitionset_active = getenv("partitionset_active"); + if (partitionset_active) { + if (partitionset_active[0] == 'A') + setenv("partitionset_active", "B"); + else + setenv("partitionset_active", "A"); + } else { + printf("partitionset_active missing.\n"); + return -ENOENT; + } + + rootfs = getenv("rootfs"); + rootfs_fallback = getenv("rootfs_fallback"); + setenv("rootfs", rootfs_fallback); + setenv("rootfs_fallback", rootfs); + + kern_size = getenv("kernel_size"); + kern_size_fb = getenv("kernel_size_fallback"); + setenv("kernel_size", kern_size_fb); + setenv("kernel_size_fallback", kern_size); + + kern_off = getenv("kernel_Off"); + kern_off_fb = getenv("kernel_Off_fallback"); + setenv("kernel_Off", kern_off_fb); + setenv("kernel_Off_fallback", kern_off); + + setenv("bootargs", '\0'); + setenv("upgrade_available", '\0'); + setenv("boot_retries", '\0'); + saveenv(); + + return 0; +} + +static int do_upgrade_available(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + unsigned long upgrade_available = 0; + unsigned long boot_retry = 0; + char boot_buf[10]; + + upgrade_available = simple_strtoul(getenv("upgrade_available"), NULL, + 10); + if (upgrade_available) { + boot_retry = simple_strtoul(getenv("boot_retries"), NULL, 10); + boot_retry++; + sprintf(boot_buf, "%lx", boot_retry); + setenv("boot_retries", boot_buf); + saveenv(); + + /* + * Here the boot_retries count is checked, and if the + * count becomes greater than 2 switch back to the + * fallback, and reset the board. + */ + + if (boot_retry > 2) { + if (upgrade_failure_fallback() == 0) + do_reset(NULL, 0, 0, NULL); + return -1; + } + } + return 0; +} + +U_BOOT_CMD( + upgrade_available, 1, 1, do_upgrade_available, + "check Siemens update", + "no parameters" +); +#endif +#endif diff --git a/include/configs/taurus.h b/include/configs/taurus.h index 2c9f5da..fb7c575 100644 --- a/include/configs/taurus.h +++ b/include/configs/taurus.h @@ -20,6 +20,7 @@ * In this case SoC is defined in boards.cfg. */ #include <asm/hardware.h> +#include <linux/sizes.h>
#define CONFIG_SYS_GENERIC_BOARD
@@ -158,12 +159,75 @@ #define CONFIG_ENV_OFFSET_REDUND 0x180000 #define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */ #define CONFIG_BOOTCOMMAND "nand read 0x22000000 0x200000 0x300000; bootm" -#define CONFIG_BOOTARGS \ + +#if defined(CONFIG_BOARD_TAURUS) +#define CONFIG_BOOTARGS_TAURUS \ "console=ttyS0,115200 earlyprintk " \ "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro," \ "256k(env),256k(env_redundant),256k(spare)," \ "512k(dtb),6M(kernel)ro,-(rootfs) " \ "root=/dev/mtdblock7 rw rootfstype=jffs2" +#endif + +#if defined(CONFIG_BOARD_AXM) +#define CONFIG_BOOTARGS_AXM \ + "\0" \ + "addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:" \ + "${gatewayip}:${netmask}:${hostname}:${netdev}::off\0" \ + "addtest=setenv bootargs ${bootargs} loglevel=4 test\0" \ + "baudrate=115200\0" \ + "boot_file=setenv bootfile /${project_dir}/kernel/uImage\0" \ + "boot_retries=0\0" \ + "bootcmd=run flash_self\0" \ + "bootdelay=3\0" \ + "ethact=macb0\0" \ + "flash_nfs=run nand_kernel;run nfsargs;run addip;upgrade_available;"\ + "bootm ${kernel_ram};reset\0" \ + "flash_self=run nand_kernel;run setbootargs;upgrade_available;" \ + "bootm ${kernel_ram};reset\0" \ + "flash_self_test=run nand_kernel;run setbootargs addtest; " \ + "upgrade_available;bootm ${kernel_ram};reset\0" \ + "hostname=systemone\0" \ + "kernel_Off=0x00200000\0" \ + "kernel_Off_fallback=0x03800000\0" \ + "kernel_ram=0x21500000\0" \ + "kernel_size=0x00400000\0" \ + "kernel_size_fallback=0x00400000\0" \ + "loads_echo=1\0" \ + "nand_kernel=nand read.e ${kernel_ram} ${kernel_Off} " \ + "${kernel_size}\0" \ + "net_nfs=run boot_file;tftp ${kernel_ram} ${bootfile};" \ + "run nfsargs;run addip;upgrade_available;bootm " \ + "${kernel_ram};reset\0" \ + "netdev=eth0\0" \ + "nfsargs=run root_path;setenv bootargs ${bootargs} " \ + "root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \ + "at91sam9_wdt.wdt_timeout=16\0" \ + "partitionset_active=A\0" \ + "preboot=echo;echo Type 'run flash_self' to use kernel and root "\ + "filesystem on memory;echo Type 'run flash_nfs' to use kernel " \ + "from memory and root filesystem over NFS;echo Type 'run net_nfs' "\ + "to get Kernel over TFTP and mount root filesystem over NFS;echo\0"\ + "project_dir=systemone\0" \ + "root_path=setenv rootpath /home/projects/${project_dir}/rootfs\0"\ + "rootfs=/dev/mtdblock5\0" \ + "rootfs_fallback=/dev/mtdblock7\0" \ + "setbootargs=setenv bootargs ${bootargs} console=ttyMTD,mtdoops "\ + "root=${rootfs} rootfstype=jffs2 panic=7 " \ + "at91sam9_wdt.wdt_timeout=16\0" \ + "stderr=serial\0" \ + "stdin=serial\0" \ + "stdout=serial\0" \ + "upgrade_available=0\0" +#endif + +#if defined(CONFIG_BOARD_TAURUS) +#define CONFIG_BOOTARGS CONFIG_BOOTARGS_TAURUS +#endif + +#if defined(CONFIG_BOARD_AXM) +#define CONFIG_BOOTARGS CONFIG_BOOTARGS_AXM +#endif
#define CONFIG_SYS_CBSIZE 256 #define CONFIG_SYS_MAXARGS 16 @@ -182,8 +246,8 @@ /* Defines for SPL */ #define CONFIG_SPL_FRAMEWORK #define CONFIG_SPL_TEXT_BASE 0x0 -#define CONFIG_SPL_MAX_SIZE (14 * 1024) -#define CONFIG_SPL_STACK (16 * 1024) +#define CONFIG_SPL_MAX_SIZE (31 * SZ_512) +#define CONFIG_SPL_STACK (ATMEL_BASE_SRAM1 + SZ_16K) #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_TEXT_BASE - \ CONFIG_SYS_MALLOC_LEN) #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN @@ -232,4 +296,5 @@ #define CONFIG_SYS_MCKR 0x1300 #define CONFIG_SYS_MCKR_CSS (0x02 | CONFIG_SYS_MCKR) #define CONFIG_SYS_AT91_PLLB 0x10193F05 + #endif