diff options
Diffstat (limited to 'board/gateworks/gw_ventana/common.c')
| -rw-r--r-- | board/gateworks/gw_ventana/common.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c index 4a15837473..e9b7357265 100644 --- a/board/gateworks/gw_ventana/common.c +++ b/board/gateworks/gw_ventana/common.c @@ -1697,6 +1697,137 @@ void setup_pmic(void) } } +#include <fdt_support.h> +#define WDOG1_ADDR 0x20bc000 +#define WDOG2_ADDR 0x20c0000 +#define GPIO3_ADDR 0x20a4000 +#define USDHC3_ADDR 0x2198000 + +static void ft_board_wdog_fixup(void *blob, phys_addr_t addr) +{ + int off = fdt_node_offset_by_compat_reg(blob, "fsl,imx6q-wdt", addr); + + if (off) { + fdt_delprop(blob, off, "ext-reset-output"); + fdt_delprop(blob, off, "fsl,ext-reset-output"); + } +} + +void ft_early_fixup(void *blob, int board_type) +{ + struct ventana_board_info *info = &ventana_info; + char rev = 0; + int i; + + /* determine board revision */ + for (i = sizeof(ventana_info.model) - 1; i > 0; i--) { + if (ventana_info.model[i] >= 'A') { + rev = ventana_info.model[i]; + break; + } + } + + /* + * Board model specific fixups + */ + switch (board_type) { + case GW51xx: + /* + * disable wdog node for GW51xx-A/B to work around + * errata causing wdog timer to be unreliable. + */ + if (rev >= 'A' && rev < 'C') { + i = fdt_node_offset_by_compat_reg(blob, "fsl,imx6q-wdt", + WDOG1_ADDR); + if (i) + fdt_status_disabled(blob, i); + } + + /* GW51xx-E adds WDOG1_B external reset */ + if (rev < 'E') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + break; + + case GW52xx: + /* GW522x Uses GPIO3_IO23 instead of GPIO1_IO29 */ + if (info->model[4] == '2') { + u32 handle = 0; + u32 *range = NULL; + + i = fdt_node_offset_by_compatible(blob, -1, + "fsl,imx6q-pcie"); + if (i) + range = (u32 *)fdt_getprop(blob, i, + "reset-gpio", NULL); + + if (range) { + i = fdt_node_offset_by_compat_reg(blob, + "fsl,imx6q-gpio", GPIO3_ADDR); + if (i) + handle = fdt_get_phandle(blob, i); + if (handle) { + range[0] = cpu_to_fdt32(handle); + range[1] = cpu_to_fdt32(23); + } + } + + /* these have broken usd_vsel */ + if (strstr((const char *)info->model, "SP318-B") || + strstr((const char *)info->model, "SP331-B")) + gpio_cfg[board_type].usd_vsel = 0; + + /* GW522x-B adds WDOG1_B external reset */ + if (rev < 'B') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + } + + /* GW520x-E adds WDOG1_B external reset */ + else if (info->model[4] == '0' && rev < 'E') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + break; + + case GW53xx: + /* GW53xx-E adds WDOG1_B external reset */ + if (rev < 'E') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + break; + + case GW54xx: + /* + * disable serial2 node for GW54xx for compatibility with older + * 3.10.x kernel that improperly had this node enabled in the DT + */ + fdt_set_status_by_alias(blob, "serial2", FDT_STATUS_DISABLED, + 0); + + /* GW54xx-E adds WDOG2_B external reset */ + if (rev < 'E') + ft_board_wdog_fixup(blob, WDOG2_ADDR); + break; + + case GW551x: + /* GW551x-C adds WDOG1_B external reset */ + if (rev < 'C') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + break; + case GW5901: + case GW5902: + /* GW5901/GW5901 revB adds WDOG1_B as an external reset */ + if (rev < 'B') + ft_board_wdog_fixup(blob, WDOG1_ADDR); + break; + } + + /* remove no-1-8-v if UHS-I support is present */ + if (gpio_cfg[board_type].usd_vsel) { + debug("Enabling UHS-I support\n"); + i = fdt_node_offset_by_compat_reg(blob, "fsl,imx6q-usdhc", + USDHC3_ADDR); + if (i) + fdt_delprop(blob, i, "no-1-8-v"); + } +} + #ifdef CONFIG_FSL_ESDHC_IMX static struct fsl_esdhc_cfg usdhc_cfg[2]; |