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| author | Gerlando Falauto <gerlando.falauto@keymile.com> | 2014-02-13 16:43:00 +0100 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-02-13 17:45:36 +0100 |
| commit | 9c134e189a95c976dab94d4f28444a5398627188 (patch) | |
| tree | f261253dd57b44c56705c5df2311fb7edbb013eb | |
| parent | b1c2a7ae32b6c5dd1dcb7cb29c862af01523ba36 (diff) | |
| download | u-boot-imx-9c134e189a95c976dab94d4f28444a5398627188.zip u-boot-imx-9c134e189a95c976dab94d4f28444a5398627188.tar.gz u-boot-imx-9c134e189a95c976dab94d4f28444a5398627188.tar.bz2 | |
arm/km: introduce kmsugp1 target
KMSUGP1 is from a u-boot perspective (almost) identical to KMNUSA.
The only difference is that the PCIe reset is connected to Kirkwood pin
MPP7_PEX_RST_OUTn, we use a dedicated config flag KM_PCIE_RESET_MPP7.
Such pin should theoretically be handled by the PCIe subsystem
automatically, but this turned out not to be the case.
So simply configure this PIN as a GPIO and issue a pulse manually.
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Cc: Karlheinz Jerg <karlheinz.jerg@keymile.com>
Cc: Valentin Longchamp <valenting.longchamp@keymile.com>
Cc: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Valentin Longchamp <valentin.longchamp@keymile.com>
| -rw-r--r-- | board/keymile/km_arm/fpga_config.c | 26 | ||||
| -rw-r--r-- | board/keymile/km_arm/km_arm.c | 4 | ||||
| -rw-r--r-- | boards.cfg | 1 | ||||
| -rw-r--r-- | include/configs/km_kirkwood.h | 12 |
4 files changed, 41 insertions, 2 deletions
diff --git a/board/keymile/km_arm/fpga_config.c b/board/keymile/km_arm/fpga_config.c index cbfc7d2..51a3cfe 100644 --- a/board/keymile/km_arm/fpga_config.c +++ b/board/keymile/km_arm/fpga_config.c @@ -189,6 +189,31 @@ int wait_for_fpga_config(void) return 0; } +#if defined(KM_PCIE_RESET_MPP7) + +#define KM_PEX_RST_GPIO_PIN 7 +int fpga_reset(void) +{ + if (!check_boco2()) { + /* we do not have BOCO2, this is not really used */ + return 0; + } + + printf("PCIe reset through GPIO7: "); + /* apply PCIe reset via GPIO */ + kw_gpio_set_valid(KM_PEX_RST_GPIO_PIN, 1); + kw_gpio_direction_output(KM_PEX_RST_GPIO_PIN, 1); + kw_gpio_set_value(KM_PEX_RST_GPIO_PIN, 0); + udelay(1000*10); + kw_gpio_set_value(KM_PEX_RST_GPIO_PIN, 1); + + printf(" done\n"); + + return 0; +} + +#else + #define PRST1 0x4 #define PCIE_RST 0x10 #define TRAFFIC_RST 0x04 @@ -219,6 +244,7 @@ int fpga_reset(void) return 0; } +#endif /* the FPGA was configured, we configure the BOCO2 so that the EEPROM * is available from the Bobcat SPI bus */ diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 5f32e70..35402c8 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -46,7 +46,11 @@ static const u32 kwmpp_config[] = { MPP4_NF_IO6, MPP5_NF_IO7, MPP6_SYSRST_OUTn, +#if defined(KM_PCIE_RESET_MPP7) + MPP7_GPO, +#else MPP7_PEX_RST_OUTn, +#endif #if defined(CONFIG_SYS_I2C_SOFT) MPP8_GPIO, /* SDA */ MPP9_GPIO, /* SCL */ @@ -173,6 +173,7 @@ Active arm arm926ejs kirkwood keymile km_arm Active arm arm926ejs kirkwood keymile km_arm km_kirkwood_pci km_kirkwood:KM_KIRKWOOD_PCI Valentin Longchamp <valentin.longchamp@keymile.com> Active arm arm926ejs kirkwood keymile km_arm kmcoge5un km_kirkwood:KM_COGE5UN Valentin Longchamp <valentin.longchamp@keymile.com> Active arm arm926ejs kirkwood keymile km_arm kmnusa km_kirkwood:KM_NUSA Valentin Longchamp <valentin.longchamp@keymile.com> +Active arm arm926ejs kirkwood keymile km_arm kmsugp1 km_kirkwood:KM_SUGP1 Valentin Longchamp <valentin.longchamp@keymile.com> Active arm arm926ejs kirkwood keymile km_arm kmsuv31 km_kirkwood:KM_SUV31 Valentin Longchamp <valentin.longchamp@keymile.com> Active arm arm926ejs kirkwood keymile km_arm mgcoge3un km_kirkwood:KM_MGCOGE3UN Valentin Longchamp <valentin.longchamp@keymile.com> Active arm arm926ejs kirkwood keymile km_arm portl2 km_kirkwood:KM_PORTL2 Valentin Longchamp <valentin.longchamp@keymile.com> diff --git a/include/configs/km_kirkwood.h b/include/configs/km_kirkwood.h index 2bd89b1..2cde177 100644 --- a/include/configs/km_kirkwood.h +++ b/include/configs/km_kirkwood.h @@ -45,11 +45,19 @@ #define CONFIG_KM_DISABLE_PCIE #define CONFIG_KM_IVM_BUS 1 /* I2C2 (Mux-Port 1)*/ -/* KM_NUSA */ -#elif defined(CONFIG_KM_NUSA) +/* KM_NUSA / KM_SUGP1 */ +#elif defined(CONFIG_KM_NUSA) || defined(CONFIG_KM_SUGP1) #define CONFIG_KM_IVM_BUS 1 /* I2C2 (Mux-Port 1)*/ + +# if defined(CONFIG_KM_NUSA) #define CONFIG_IDENT_STRING "\nKeymile NUSA" #define CONFIG_HOSTNAME kmnusa +# elif defined(CONFIG_KM_SUGP1) +#define CONFIG_IDENT_STRING "\nKeymile SUGP1" +#define CONFIG_HOSTNAME kmsugp1 +#define KM_PCIE_RESET_MPP7 +#endif + #undef CONFIG_SYS_KWD_CONFIG #define CONFIG_SYS_KWD_CONFIG \ $(SRCTREE)/$(CONFIG_BOARDDIR)/kwbimage_128M16_1.cfg |