diff options
| author | Sheshu Shenoy <sshenoy@nvidia.com> | 2010-07-26 16:00:09 -0700 |
|---|---|---|
| committer | Bharat Nihalani <bnihalani@nvidia.com> | 2010-08-05 06:52:31 -0700 |
| commit | 140b4f80dbe153d805707e07034d5c2c89538bf7 (patch) | |
| tree | eb6d20167fbcc8a8c942a09042278e2c14fd604f | |
| parent | 6153e3f3c3aa0e2893cb3e576cd8442b0eafacc3 (diff) | |
[arm/tegra] board-generic: added support for IFX spi protocol driver
Change-Id: Ifeb59cbd1e9b66c6409d1d7242676eac32ccb9fc
Reviewed-on: http://git-master/r/4288
Reviewed-by: Sheshagiri Shenoy <sshenoy@nvidia.com>
Tested-by: Sheshagiri Shenoy <sshenoy@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/board-generic.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-generic.c b/arch/arm/mach-tegra/board-generic.c index 6d128e10e66f..4534cd49454c 100644 --- a/arch/arm/mach-tegra/board-generic.c +++ b/arch/arm/mach-tegra/board-generic.c @@ -38,7 +38,10 @@ #include <mach/irqs.h> #include <mach/nvrm_linux.h> #include <nvrm_module.h> +#include <linux/spi/spi.h> +#include "nvodm_query.h" +#include "nvodm_query_discovery.h" #include "board.h" #ifdef CONFIG_USB_ANDROID @@ -205,6 +208,54 @@ void __init i2c_device_setup(void) extern void __init tegra_setup_nvodm(bool standard_i2c, bool standard_spi); extern void __init tegra_register_socdev(void); +static struct spi_board_info tegra_spi_ipc_devices[] __initdata = { + { + .modalias = "spi_ipc", + .bus_num = 0, + .chip_select = 0, + .mode = SPI_MODE_1, + .max_speed_hz = 12000000, + .platform_data = NULL, + .irq = 0, + }, +}; + +static void __init register_spi_ipc_devices(void) +{ + unsigned long instance = 0xFFFF; + unsigned long cs = 0xFFFF; + const NvOdmPeripheralConnectivity *pConnectivity = NULL; + int i; + + pConnectivity = + NvOdmPeripheralGetGuid(NV_ODM_GUID('s','p','i',' ','_','i','p','c')); + if (!pConnectivity) + return; + + for (i = 0; i < pConnectivity->NumAddress; i++) { + switch (pConnectivity->AddressList[i].Interface) { + case NvOdmIoModule_Spi: + instance = pConnectivity->AddressList[i].Instance; + cs = pConnectivity->AddressList[i].Address; + break; + default: + break; + } + } + + if (instance == 0xffff || cs == 0xffff) { + pr_err("%s: SPI IPC Protocol driver: Instance and CS are Invalid\n", __func__); + return; + } + + tegra_spi_ipc_devices[0].bus_num = instance; + tegra_spi_ipc_devices[0].chip_select = cs; + if (spi_register_board_info(tegra_spi_ipc_devices, ARRAY_SIZE(tegra_spi_ipc_devices)) != 0) { + pr_err("%s: spi_register_board_info returned error\n", __func__); + } +} + + static void __init do_system_init(bool standard_i2c, bool standard_spi) { unsigned int chip_id[2]; @@ -245,6 +296,7 @@ static void __init tegra_generic_init(void) tegra_android_platform.product_name = generic_dev; #endif do_system_init(true, true); + register_spi_ipc_devices(); } MACHINE_START(VENTANA, "NVIDIA Ventana Development System") |