diff options
author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-08-22 16:16:26 +0200 |
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committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-08-22 16:16:26 +0200 |
commit | 2a1325206da5381292c2b268e248702c523cc927 (patch) | |
tree | 45d684a865eab51b0711d07782b1d8e8ae9d9932 /board/nvidia/common | |
parent | 2f2f858faddd3cce54f7c64bc8fc8b596c1ddfaf (diff) |
Initial Toradex Colibri T20 L4T R15 support.T20_LinuxImageV2.0Alpha1_20120808
Diffstat (limited to 'board/nvidia/common')
-rw-r--r-- | board/nvidia/common/board.c | 36 | ||||
-rw-r--r-- | board/nvidia/common/pmu.c | 1 |
2 files changed, 36 insertions, 1 deletions
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c index 5cb219b4f92..1ad40a7b0d0 100644 --- a/board/nvidia/common/board.c +++ b/board/nvidia/common/board.c @@ -152,6 +152,37 @@ static void pin_mux_uart(int uart_ids) #endif /* CONFIG_TEGRA2 */ } +#if defined(CONFIG_TEGRA3) +static void enable_clock(enum periph_id pid, int src) +{ + /* Assert reset and enable clock */ + reset_set_enable(pid, 1); + clock_enable(pid); + + /* Use 'src' if provided, else use default */ + if (src != -1) + clock_ll_set_source(pid, src); + + /* wait for 2us */ + udelay(2); + + /* De-assert reset */ + reset_set_enable(pid, 0); +} + +/* Init misc clocks for kernel booting */ +static void clock_init_misc(void) +{ + /* 0 = PLLA_OUT0, -1 = CLK_M (default) */ + enable_clock(PERIPH_ID_I2S0, -1); + enable_clock(PERIPH_ID_I2S1, 0); + enable_clock(PERIPH_ID_I2S2, 0); + enable_clock(PERIPH_ID_I2S3, 0); + enable_clock(PERIPH_ID_I2S4, -1); + enable_clock(PERIPH_ID_SPDIF, -1); +} +#endif + /* * Routine: pin_mux_switches * Description: Disable internal pullups for the write protect, SDIO3 write @@ -380,6 +411,11 @@ int board_early_init_f(void) init_uarts(gd->blob); #endif +#if defined(CONFIG_TEGRA3) + /* Initialize misc clocks for kernel booting */ + clock_init_misc(); +#endif + #ifdef CONFIG_VIDEO_TEGRA /* Get LCD panel size */ lcd_early_init(gd->blob); diff --git a/board/nvidia/common/pmu.c b/board/nvidia/common/pmu.c index 0ff3167a8cd..d18c8d71e8f 100644 --- a/board/nvidia/common/pmu.c +++ b/board/nvidia/common/pmu.c @@ -47,7 +47,6 @@ #define stp(x, y) ((x < y) ? VDD_TRANSITION_STEP : -VDD_TRANSITION_STEP) -#define MAX_I2C_RETRY 3 int pmu_read(int reg) { int i; |