From 6264800e61fa77bb14df3ac0c54fb1190394c5a9 Mon Sep 17 00:00:00 2001 From: Holger Brunck Date: Tue, 27 Sep 2011 02:54:31 +0000 Subject: arm/km/mgcoge3un: enhance "waitforne" feature The mgcoge3un waits to be released from mgcoge3ne at startup. This patch enhances this feature with the possibility to interrupt this wait if a key is pressed. Signed-off-by: Holger Brunck Signed-off-by: Valentin Longchamp cc: Prafulla Wadaskar --- board/keymile/km_arm/km_arm.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'board/keymile') diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 6ef5e5da12..6e32249db9 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -207,8 +207,14 @@ int misc_init_r(void) if (wait_for_ne != NULL) { if (strcmp(wait_for_ne, "true") == 0) { int cnt = 0; + int abort = 0; puts("NE go: "); while (startup_allowed() == 0) { + if (tstc()) { + (void) getc(); /* consume input */ + abort = 1; + break; + } udelay(200000); cnt++; if (cnt == 5) @@ -218,7 +224,10 @@ int misc_init_r(void) puts(" \b\b\b\b"); } } - puts("OK\n"); + if (abort == 1) + printf("\nAbort waiting for ne\n"); + else + puts("OK\n"); } } #endif -- cgit From 8620ca2a1f42e33da93d7115c0cf8a9ea4846b64 Mon Sep 17 00:00:00 2001 From: Valentin Longchamp <[valentin.longchamp@keymile.com]> Date: Tue, 1 Nov 2011 17:26:36 +0530 Subject: ARM: Reintroduce MACH_TYPE_KM_KIRKWOOD for keymile ARM boards We got dropped from Linux mach-types.h because of a lack of mainline support and this is needed since the last Linux/u-boot mach-types synchro. This patch also defines CONFIG_MACH_TYPE for all keymile boards, as this is a mandatory CONFIG for ARM boards now. The initialization of gd->bd->bi_arch_number is removed form km_arm.c, our board file. Signed-off-by: Valentin Longchamp Signed-off-by: Holger Brunck Signed-off-by: Prafulla Wadaskar --- board/keymile/km_arm/km_arm.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'board/keymile') diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 6e32249db9..4a4e1d0289 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -273,11 +273,6 @@ int board_early_init_f(void) int board_init(void) { - /* - * arch number of board - */ - gd->bd->bi_arch_number = MACH_TYPE_KM_KIRKWOOD; - /* address of boot parameters */ gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100; -- cgit From f0d6425790e7a6f97dd913de54b2f5f47cd5b5b4 Mon Sep 17 00:00:00 2001 From: Holger Brunck Date: Tue, 13 Sep 2011 22:41:05 +0000 Subject: arm/km: trigger reconfiguration for the Xilinx FPGA The Xilinx FPGA must be reconfigured each time the unit reboots. The FPGA is connected to the GPIO pin 39 from kirkwood. This patch triggers this pin for km_kirkwood_pci targets. Signed-off-by: Holger Brunck Signed-off-by: Valentin Longchamp cc: Prafulla Wadaskar --- board/keymile/km_arm/km_arm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'board/keymile') diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 4a4e1d0289..3c9b91768f 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -267,7 +267,12 @@ int board_early_init_f(void) kw_gpio_set_valid(KM_KIRKWOOD_ENV_WP, 38); kw_gpio_direction_output(KM_KIRKWOOD_ENV_WP, 1); #endif - +#if defined(CONFIG_KM_RECONFIG_XLX) + /* trigger the reconfiguration of the xilinx fpga */ + kw_gpio_set_valid(KM_XLX_PROGRAM_B_PIN, 1); + kw_gpio_direction_output(KM_XLX_PROGRAM_B_PIN, 0); + kw_gpio_direction_input(KM_XLX_PROGRAM_B_PIN); +#endif return 0; } -- cgit From 37605c466d10ea49c8618d8a4cdfd0176efa8f68 Mon Sep 17 00:00:00 2001 From: Holger Brunck Date: Tue, 13 Sep 2011 22:41:02 +0000 Subject: arm/km: adapt bootcounter evaluation The bootcounter (stored in the RAM) is not enough protected with the 4 Bytes BOOTCOUNT_MAGIC against bit errors due to short power loss or holding a system in RESET. It has been seen, that the bootcounter value has been changed due to a bit flip on a system holding in RESET, but the BOOTCOUNT_MAGIC was still valid. A bit pattern with 4000 bytes (after BOOTCOUNT_MAGIC) has been implemented, which should be enough to detect a bit error. Signed-off-by: Holger Brunck Signed-off-by: Valentin Longchamp cc: Prafulla Wadaskar --- board/keymile/km_arm/km_arm.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) (limited to 'board/keymile') diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 3c9b91768f..ca33aaec53 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -405,6 +405,15 @@ int hush_init_var(void) #endif #if defined(CONFIG_BOOTCOUNT_LIMIT) +const ulong patterns[] = { 0x00000000, + 0xFFFFFFFF, + 0xFF00FF00, + 0x0F0F0F0F, + 0xF0F0F0F0}; +const ulong NBR_OF_PATTERNS = sizeof(patterns)/sizeof(*patterns); +const ulong OFFS_PATTERN = 3; +const ulong REPEAT_PATTERN = 1000; + void bootcount_store(ulong a) { volatile ulong *save_addr; @@ -416,21 +425,34 @@ void bootcount_store(ulong a) save_addr = (ulong*)(size - BOOTCOUNT_ADDR); writel(a, save_addr); writel(BOOTCOUNT_MAGIC, &save_addr[1]); + + for (i = 0; i < REPEAT_PATTERN; i++) + writel(patterns[i % NBR_OF_PATTERNS], + &save_addr[i+OFFS_PATTERN]); + } ulong bootcount_load(void) { volatile ulong *save_addr; volatile ulong size = 0; - int i; + ulong counter = 0; + int i, tmp; + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { size += gd->bd->bi_dram[i].size; } save_addr = (ulong*)(size - BOOTCOUNT_ADDR); - if (readl(&save_addr[1]) != BOOTCOUNT_MAGIC) - return 0; - else - return readl(save_addr); + + counter = readl(&save_addr[0]); + + /* Is the counter reliable, check in the big pattern for bit errors */ + for (i = 0; (i < REPEAT_PATTERN) && (counter != 0); i++) { + tmp = readl(&save_addr[i+OFFS_PATTERN]); + if (tmp != patterns[i % NBR_OF_PATTERNS]) + counter = 0; + } + return counter; } #endif -- cgit