static void load_ssp_default_config(struct pl022 *pl022)
{
writew(DEFAULT_SSP_REG_CR0, SSP_CR0(pl022->virtbase));
writew(DEFAULT_SSP_REG_CR1, SSP_CR1(pl022->virtbase));
writew(DEFAULT_SSP_REG_DMACR, SSP_DMACR(pl022->virtbase));
writew(DEFAULT_SSP_REG_CPSR, SSP_CPSR(pl022->virtbase));
writew(DISABLE_ALL_INTERRUPTS, SSP_IMSC(pl022->virtbase));
writew(CLEAR_ALL_INTERRUPTS, SSP_ICR(pl022->virtbase));
}
static void restore_state(struct pl022 *pl022)
{
struct chip_data *chip = pl022->cur_chip;
writew(chip->cr0, SSP_CR0(pl022->virtbase));
writew(chip->cr1, SSP_CR1(pl022->virtbase));
writew(chip->dmacr, SSP_DMACR(pl022->virtbase));
writew(chip->cpsr, SSP_CPSR(pl022->virtbase));
writew(DISABLE_ALL_INTERRUPTS, SSP_IMSC(pl022->virtbase));
writew(CLEAR_ALL_INTERRUPTS, SSP_ICR(pl022->virtbase));
}
static void load_ssp_default_config(struct pl022 *pl022)
{
if (pl022->vendor->pl023) {
writel(DEFAULT_SSP_REG_CR0_ST_PL023, SSP_CR0(pl022->virtbase));
writew(DEFAULT_SSP_REG_CR1_ST_PL023, SSP_CR1(pl022->virtbase));
} else if (pl022->vendor->extended_cr) {
writel(DEFAULT_SSP_REG_CR0_ST, SSP_CR0(pl022->virtbase));
writew(DEFAULT_SSP_REG_CR1_ST, SSP_CR1(pl022->virtbase));
} else {
writew(DEFAULT_SSP_REG_CR0, SSP_CR0(pl022->virtbase));
writew(DEFAULT_SSP_REG_CR1, SSP_CR1(pl022->virtbase));
}
writew(DEFAULT_SSP_REG_DMACR, SSP_DMACR(pl022->virtbase));
writew(DEFAULT_SSP_REG_CPSR, SSP_CPSR(pl022->virtbase));
writew(DISABLE_ALL_INTERRUPTS, SSP_IMSC(pl022->virtbase));
writew(CLEAR_ALL_INTERRUPTS, SSP_ICR(pl022->virtbase));
}
/*
* SSP Init function
*/
void ssp_init(ssp_num_t ssp_num,
ssp_datasize_t data_size,
ssp_frame_format_t frame_format,
ssp_cpol_cpha_t cpol_cpha_format,
uint8_t serial_clock_rate,
uint8_t clk_prescale,
ssp_mode_t mode,
ssp_master_slave_t master_slave,
ssp_slave_option_t slave_option)
{
uint32_t ssp_port;
uint32_t clock;
if (ssp_num == SSP0_NUM)
{
ssp_port = SSP0;
CGU_BASE_SSP0_CLK = CGU_BASE_SSP0_CLK_CLK_SEL(CGU_SRC_PLL1)
| CGU_BASE_SSP0_CLK_AUTOBLOCK;
CCU1_CLK_M4_SSP0_CFG |= 1; /* Enable SSP0 Clock */
/* use PLL1 as clock source for SSP0 */
} else
{
ssp_port = SSP1;
/* use PLL1 as clock source for SSP1 */
CGU_BASE_SSP1_CLK = CGU_BASE_SSP1_CLK_CLK_SEL(CGU_SRC_PLL1)
| CGU_BASE_SSP1_CLK_AUTOBLOCK;
CCU1_CLK_M4_SSP1_CFG |= 1; /* Enable SSP1 Clock */
}
/* Disable SSP before to configure it */
SSP_CR1(ssp_port) = 0x0;
/* Configure SSP */
clock = serial_clock_rate;
SSP_CPSR(ssp_port) = clk_prescale;
SSP_CR0(ssp_port) =
(data_size | frame_format | cpol_cpha_format | (clock<<8));
/* Enable SSP */
SSP_CR1(ssp_port) = (SSP_ENABLE | mode | master_slave | slave_option);
}
