diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2011-09-08 19:36:17 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-09-09 14:45:49 -0700 |
| commit | f988c97564f9ecf4b78f4e935e2cfc4ca1b6db0e (patch) | |
| tree | 7cf262f31d0174ad2a8a146e6cf21800961a725b | |
| parent | aa84b06982dbea58b815fc99bbbf84c7bdaddc78 (diff) | |
arm: tegra: parse kernel command line for debug port id
Parsing the linux command line for the debug port id.
bug 795847
Change-Id: Icba663dc97f40345d9c64a1aa7e9fff5c867bb62
Reviewed-on: http://git-master/r/51370
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/board.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/common.c | 15 |
2 files changed, 14 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h index 862909de878e..fd8c43dfe484 100644 --- a/arch/arm/mach-tegra/board.h +++ b/arch/arm/mach-tegra/board.h @@ -37,6 +37,7 @@ void tegra_move_framebuffer(unsigned long to, unsigned long from, unsigned long size); int tegra_dvfs_rail_disable_by_name(const char *reg_id); bool is_tegra_debug_uartport_hs(void); +int get_tegra_uart_debug_port_id(void); int arb_lost_recovery(int scl_gpio, int sda_gpio); extern unsigned long tegra_bootloader_fb_start; diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 96ca3c54f5c2..a5f373ec0284 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -96,6 +96,7 @@ static int pmu_core_edp = 1200; /* default 1.2V EDP limit */ static int board_panel_type; static enum power_supply_type pow_supply_type; static int modem_id; +static int debug_uart_port_id; void (*tegra_reset)(char mode, const char *cmd); /* WARNING: There is implicit client of pllp_out3 like i2c, uart, dsi @@ -522,11 +523,17 @@ __setup("core_edp_mv=", tegra_pmu_core_edp); static int __init tegra_debug_uartport(char *info) { - if (!strcmp(info, "hsport")) + char *p = info; + if (!strncmp(p, "hsport", 6)) is_tegra_debug_uart_hsport = true; - else if (!strcmp(info, "lsport")) + else if (!strncmp(p, "lsport", 6)) is_tegra_debug_uart_hsport = false; + if (p[6] == ',') + debug_uart_port_id = memparse(p + 7, &p); + else + debug_uart_port_id = -1; + return 1; } @@ -535,6 +542,10 @@ bool is_tegra_debug_uartport_hs(void) return is_tegra_debug_uart_hsport; } +int get_tegra_uart_debug_port_id(void) +{ + return debug_uart_port_id; +} __setup("debug_uartport=", tegra_debug_uartport); void tegra_get_board_info(struct board_info *bi) |