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Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/exynos/pinmux.c561
-rw-r--r--arch/arm/cpu/armv7/socfpga/lowlevel_init.S15
-rw-r--r--arch/arm/cpu/armv7/start.S253
-rw-r--r--arch/arm/cpu/armv7/zynq/u-boot.lds2
4 files changed, 321 insertions, 510 deletions
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index 9edb47502c..ee7c2e5a4b 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -13,30 +13,23 @@
static void exynos5_uart_config(int peripheral)
{
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
- struct s5p_gpio_bank *bank;
int i, start, count;
switch (peripheral) {
case PERIPH_ID_UART0:
- bank = &gpio1->a0;
- start = 0;
+ start = EXYNOS5_GPIO_A00;
count = 4;
break;
case PERIPH_ID_UART1:
- bank = &gpio1->d0;
- start = 0;
+ start = EXYNOS5_GPIO_D00;
count = 4;
break;
case PERIPH_ID_UART2:
- bank = &gpio1->a1;
- start = 0;
+ start = EXYNOS5_GPIO_A10;
count = 4;
break;
case PERIPH_ID_UART3:
- bank = &gpio1->a1;
- start = 4;
+ start = EXYNOS5_GPIO_A14;
count = 2;
break;
default:
@@ -44,37 +37,30 @@ static void exynos5_uart_config(int peripheral)
return;
}
for (i = start; i < start + count; i++) {
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
}
}
static void exynos5420_uart_config(int peripheral)
{
- struct exynos5420_gpio_part1 *gpio1 =
- (struct exynos5420_gpio_part1 *)samsung_get_base_gpio_part1();
- struct s5p_gpio_bank *bank;
int i, start, count;
switch (peripheral) {
case PERIPH_ID_UART0:
- bank = &gpio1->a0;
- start = 0;
+ start = EXYNOS5420_GPIO_A00;
count = 4;
break;
case PERIPH_ID_UART1:
- bank = &gpio1->a0;
- start = 4;
+ start = EXYNOS5420_GPIO_A04;
count = 4;
break;
case PERIPH_ID_UART2:
- bank = &gpio1->a1;
- start = 0;
+ start = EXYNOS5420_GPIO_A10;
count = 4;
break;
case PERIPH_ID_UART3:
- bank = &gpio1->a1;
- start = 4;
+ start = EXYNOS5420_GPIO_A14;
count = 2;
break;
default:
@@ -83,64 +69,59 @@ static void exynos5420_uart_config(int peripheral)
}
for (i = start; i < start + count; i++) {
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
}
}
static int exynos5_mmc_config(int peripheral, int flags)
{
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
- struct s5p_gpio_bank *bank, *bank_ext;
- int i, start = 0, gpio_func = 0;
+ int i, start, start_ext, gpio_func = 0;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
- bank = &gpio1->c0;
- bank_ext = &gpio1->c1;
- start = 0;
- gpio_func = GPIO_FUNC(0x2);
+ start = EXYNOS5_GPIO_C00;
+ start_ext = EXYNOS5_GPIO_C10;
+ gpio_func = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SDMMC1:
- bank = &gpio1->c2;
- bank_ext = NULL;
+ start = EXYNOS5_GPIO_C20;
+ start_ext = 0;
break;
case PERIPH_ID_SDMMC2:
- bank = &gpio1->c3;
- bank_ext = &gpio1->c4;
- start = 3;
- gpio_func = GPIO_FUNC(0x3);
+ start = EXYNOS5_GPIO_C30;
+ start_ext = EXYNOS5_GPIO_C43;
+ gpio_func = S5P_GPIO_FUNC(0x3);
break;
case PERIPH_ID_SDMMC3:
- bank = &gpio1->c4;
- bank_ext = NULL;
+ start = EXYNOS5_GPIO_C40;
+ start_ext = 0;
break;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return -1;
}
- if ((flags & PINMUX_FLAG_8BIT_MODE) && !bank_ext) {
+ if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
debug("SDMMC device %d does not support 8bit mode",
peripheral);
return -1;
}
if (flags & PINMUX_FLAG_8BIT_MODE) {
- for (i = start; i <= (start + 3); i++) {
- s5p_gpio_cfg_pin(bank_ext, i, gpio_func);
- s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_UP);
- s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);
+ for (i = start_ext; i <= (start_ext + 3); i++) {
+ gpio_cfg_pin(i, gpio_func);
+ gpio_set_pull(i, S5P_GPIO_PULL_UP);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
}
- for (i = 0; i < 2; i++) {
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
+ for (i = start; i < (start + 2); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
- for (i = 3; i <= 6; i++) {
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
- s5p_gpio_set_pull(bank, i, GPIO_PULL_UP);
- s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
+ for (i = (start + 3); i <= (start + 6); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_UP);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
return 0;
@@ -148,26 +129,20 @@ static int exynos5_mmc_config(int peripheral, int flags)
static int exynos5420_mmc_config(int peripheral, int flags)
{
- struct exynos5420_gpio_part3 *gpio3 =
- (struct exynos5420_gpio_part3 *)samsung_get_base_gpio_part3();
- struct s5p_gpio_bank *bank = NULL, *bank_ext = NULL;
- int i, start;
+ int i, start = 0, start_ext = 0;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
- bank = &gpio3->c0;
- bank_ext = &gpio3->c3;
- start = 0;
+ start = EXYNOS5420_GPIO_C00;
+ start_ext = EXYNOS5420_GPIO_C30;
break;
case PERIPH_ID_SDMMC1:
- bank = &gpio3->c1;
- bank_ext = &gpio3->d1;
- start = 4;
+ start = EXYNOS5420_GPIO_C10;
+ start_ext = EXYNOS5420_GPIO_D14;
break;
case PERIPH_ID_SDMMC2:
- bank = &gpio3->c2;
- bank_ext = NULL;
- start = 0;
+ start = EXYNOS5420_GPIO_C20;
+ start_ext = 0;
break;
default:
start = 0;
@@ -175,41 +150,41 @@ static int exynos5420_mmc_config(int peripheral, int flags)
return -1;
}
- if ((flags & PINMUX_FLAG_8BIT_MODE) && !bank_ext) {
+ if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
debug("SDMMC device %d does not support 8bit mode",
peripheral);
return -1;
}
if (flags & PINMUX_FLAG_8BIT_MODE) {
- for (i = start; i <= (start + 3); i++) {
- s5p_gpio_cfg_pin(bank_ext, i, GPIO_FUNC(0x2));
- s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_UP);
- s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);
+ for (i = start_ext; i <= (start_ext + 3); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_UP);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
}
- for (i = 0; i < 3; i++) {
+ for (i = start; i < (start + 3); i++) {
/*
* MMC0 is intended to be used for eMMC. The
* card detect pin is used as a VDDEN signal to
* power on the eMMC. The 5420 iROM makes
* this same assumption.
*/
- if ((peripheral == PERIPH_ID_SDMMC0) && (i == 2)) {
- s5p_gpio_set_value(bank, i, 1);
- s5p_gpio_cfg_pin(bank, i, GPIO_OUTPUT);
+ if ((peripheral == PERIPH_ID_SDMMC0) && (i == (start + 2))) {
+ gpio_set_value(i, 1);
+ gpio_cfg_pin(i, S5P_GPIO_OUTPUT);
} else {
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
}
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
- for (i = 3; i <= 6; i++) {
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
- s5p_gpio_set_pull(bank, i, GPIO_PULL_UP);
- s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
+ for (i = (start + 3); i <= (start + 6); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_UP);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
return 0;
@@ -217,8 +192,6 @@ static int exynos5420_mmc_config(int peripheral, int flags)
static void exynos5_sromc_config(int flags)
{
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
int i;
/*
@@ -236,13 +209,13 @@ static void exynos5_sromc_config(int flags)
* GPY1[2] SROM_WAIT(2)
* GPY1[3] EBI_DATA_RDn(2)
*/
- s5p_gpio_cfg_pin(&gpio1->y0, (flags & PINMUX_FLAG_BANK),
- GPIO_FUNC(2));
- s5p_gpio_cfg_pin(&gpio1->y0, 4, GPIO_FUNC(2));
- s5p_gpio_cfg_pin(&gpio1->y0, 5, GPIO_FUNC(2));
+ gpio_cfg_pin(EXYNOS5_GPIO_Y00 + (flags & PINMUX_FLAG_BANK),
+ S5P_GPIO_FUNC(2));
+ gpio_cfg_pin(EXYNOS5_GPIO_Y04, S5P_GPIO_FUNC(2));
+ gpio_cfg_pin(EXYNOS5_GPIO_Y05, S5P_GPIO_FUNC(2));
for (i = 0; i < 4; i++)
- s5p_gpio_cfg_pin(&gpio1->y1, i, GPIO_FUNC(2));
+ gpio_cfg_pin(EXYNOS5_GPIO_Y10 + i, S5P_GPIO_FUNC(2));
/*
* EBI: 8 Addrss Lines
@@ -277,108 +250,101 @@ static void exynos5_sromc_config(int flags)
* GPY6[7] EBI_DATA[15](2)
*/
for (i = 0; i < 8; i++) {
- s5p_gpio_cfg_pin(&gpio1->y3, i, GPIO_FUNC(2));
- s5p_gpio_set_pull(&gpio1->y3, i, GPIO_PULL_UP);
+ gpio_cfg_pin(EXYNOS5_GPIO_Y30 + i, S5P_GPIO_FUNC(2));
+ gpio_set_pull(EXYNOS5_GPIO_Y30 + i, S5P_GPIO_PULL_UP);
- s5p_gpio_cfg_pin(&gpio1->y5, i, GPIO_FUNC(2));
- s5p_gpio_set_pull(&gpio1->y5, i, GPIO_PULL_UP);
+ gpio_cfg_pin(EXYNOS5_GPIO_Y50 + i, S5P_GPIO_FUNC(2));
+ gpio_set_pull(EXYNOS5_GPIO_Y50 + i, S5P_GPIO_PULL_UP);
- s5p_gpio_cfg_pin(&gpio1->y6, i, GPIO_FUNC(2));
- s5p_gpio_set_pull(&gpio1->y6, i, GPIO_PULL_UP);
+ gpio_cfg_pin(EXYNOS5_GPIO_Y60 + i, S5P_GPIO_FUNC(2));
+ gpio_set_pull(EXYNOS5_GPIO_Y60 + i, S5P_GPIO_PULL_UP);
}
}
static void exynos5_i2c_config(int peripheral, int flags)
{
-
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
-
switch (peripheral) {
case PERIPH_ID_I2C0:
- s5p_gpio_cfg_pin(&gpio1->b3, 0, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 1, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C1:
- s5p_gpio_cfg_pin(&gpio1->b3, 2, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 3, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C2:
- s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C3:
- s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C4:
- s5p_gpio_cfg_pin(&gpio1->a2, 0, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a2, 1, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A20, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A21, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C5:
- s5p_gpio_cfg_pin(&gpio1->a2, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a2, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A22, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_A23, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C6:
- s5p_gpio_cfg_pin(&gpio1->b1, 3, GPIO_FUNC(0x4));
- s5p_gpio_cfg_pin(&gpio1->b1, 4, GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5_GPIO_B13, S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5_GPIO_B14, S5P_GPIO_FUNC(0x4));
break;
case PERIPH_ID_I2C7:
- s5p_gpio_cfg_pin(&gpio1->b2, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->b2, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_B22, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_B23, S5P_GPIO_FUNC(0x3));
break;
}
}
static void exynos5420_i2c_config(int peripheral)
{
- struct exynos5420_gpio_part1 *gpio1 =
- (struct exynos5420_gpio_part1 *)samsung_get_base_gpio_part1();
-
switch (peripheral) {
case PERIPH_ID_I2C0:
- s5p_gpio_cfg_pin(&gpio1->b3, 0, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 1, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B30, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B31, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C1:
- s5p_gpio_cfg_pin(&gpio1->b3, 2, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 3, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B32, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B33, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C2:
- s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A06, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A07, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C3:
- s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A12, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A13, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C4:
- s5p_gpio_cfg_pin(&gpio1->a2, 0, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a2, 1, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A20, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A21, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C5:
- s5p_gpio_cfg_pin(&gpio1->a2, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a2, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A22, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_A23, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C6:
- s5p_gpio_cfg_pin(&gpio1->b1, 3, GPIO_FUNC(0x4));
- s5p_gpio_cfg_pin(&gpio1->b1, 4, GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B13, S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B14, S5P_GPIO_FUNC(0x4));
break;
case PERIPH_ID_I2C7:
- s5p_gpio_cfg_pin(&gpio1->b2, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->b2, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B22, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B23, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C8:
- s5p_gpio_cfg_pin(&gpio1->b3, 4, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 5, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B34, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B35, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C9:
- s5p_gpio_cfg_pin(&gpio1->b3, 6, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b3, 7, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B36, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B37, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C10:
- s5p_gpio_cfg_pin(&gpio1->b4, 0, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->b4, 1, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B40, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS5420_GPIO_B41, S5P_GPIO_FUNC(0x2));
break;
}
}
@@ -386,19 +352,15 @@ static void exynos5420_i2c_config(int peripheral)
static void exynos5_i2s_config(int peripheral)
{
int i;
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *)samsung_get_base_gpio_part1();
- struct exynos5_gpio_part4 *gpio4 =
- (struct exynos5_gpio_part4 *)samsung_get_base_gpio_part4();
switch (peripheral) {
case PERIPH_ID_I2S0:
for (i = 0; i < 5; i++)
- s5p_gpio_cfg_pin(&gpio4->z, i, GPIO_FUNC(0x02));
+ gpio_cfg_pin(EXYNOS5_GPIO_Z0 + i, S5P_GPIO_FUNC(0x02));
break;
case PERIPH_ID_I2S1:
for (i = 0; i < 5; i++)
- s5p_gpio_cfg_pin(&gpio1->b0, i, GPIO_FUNC(0x02));
+ gpio_cfg_pin(EXYNOS5_GPIO_B00 + i, S5P_GPIO_FUNC(0x02));
break;
}
}
@@ -406,75 +368,57 @@ static void exynos5_i2s_config(int peripheral)
void exynos5_spi_config(int peripheral)
{
int cfg = 0, pin = 0, i;
- struct s5p_gpio_bank *bank = NULL;
- struct exynos5_gpio_part1 *gpio1 =
- (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
- struct exynos5_gpio_part2 *gpio2 =
- (struct exynos5_gpio_part2 *) samsung_get_base_gpio_part2();
switch (peripheral) {
case PERIPH_ID_SPI0:
- bank = &gpio1->a2;
- cfg = GPIO_FUNC(0x2);
- pin = 0;
+ cfg = S5P_GPIO_FUNC(0x2);
+ pin = EXYNOS5_GPIO_A20;
break;
case PERIPH_ID_SPI1:
- bank = &gpio1->a2;
- cfg = GPIO_FUNC(0x2);
- pin = 4;
+ cfg = S5P_GPIO_FUNC(0x2);
+ pin = EXYNOS5_GPIO_A24;
break;
case PERIPH_ID_SPI2:
- bank = &gpio1->b1;
- cfg = GPIO_FUNC(0x5);
- pin = 1;
+ cfg = S5P_GPIO_FUNC(0x5);
+ pin = EXYNOS5_GPIO_B11;
break;
case PERIPH_ID_SPI3:
- bank = &gpio2->f1;
- cfg = GPIO_FUNC(0x2);
- pin = 0;
+ cfg = S5P_GPIO_FUNC(0x2);
+ pin = EXYNOS5_GPIO_F10;
break;
case PERIPH_ID_SPI4:
for (i = 0; i < 2; i++) {
- s5p_gpio_cfg_pin(&gpio2->f0, i + 2, GPIO_FUNC(0x4));
- s5p_gpio_cfg_pin(&gpio2->e0, i + 4, GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5_GPIO_F02 + i, S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5_GPIO_E04 + i, S5P_GPIO_FUNC(0x4));
}
break;
}
if (peripheral != PERIPH_ID_SPI4) {
for (i = pin; i < pin + 4; i++)
- s5p_gpio_cfg_pin(bank, i, cfg);
+ gpio_cfg_pin(i, cfg);
}
}
void exynos5420_spi_config(int peripheral)
{
int cfg, pin, i;
- struct s5p_gpio_bank *bank = NULL;
- struct exynos5420_gpio_part1 *gpio1 =
- (struct exynos5420_gpio_part1 *)samsung_get_base_gpio_part1();
- struct exynos5420_gpio_part4 *gpio4 =
- (struct exynos5420_gpio_part4 *)samsung_get_base_gpio_part4();
switch (peripheral) {
case PERIPH_ID_SPI0:
- bank = &gpio1->a2;
- cfg = GPIO_FUNC(0x2);
- pin = 0;
+ pin = EXYNOS5420_GPIO_A20;
+ cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI1:
- bank = &gpio1->a2;
- cfg = GPIO_FUNC(0x2);
- pin = 4;
+ pin = EXYNOS5420_GPIO_A24;
+ cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI2:
- bank = &gpio1->b1;
- cfg = GPIO_FUNC(0x5);
- pin = 1;
+ pin = EXYNOS5420_GPIO_B11;
+ cfg = S5P_GPIO_FUNC(0x5);
break;
case PERIPH_ID_SPI3:
- bank = &gpio4->f1;
- cfg = GPIO_FUNC(0x2);
- pin = 0;
+ pin = EXYNOS5420_GPIO_F10;
+ cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI4:
cfg = 0;
@@ -489,11 +433,13 @@ void exynos5420_spi_config(int peripheral)
if (peripheral != PERIPH_ID_SPI4) {
for (i = pin; i < pin + 4; i++)
- s5p_gpio_cfg_pin(bank, i, cfg);
+ gpio_cfg_pin(i, cfg);
} else {
for (i = 0; i < 2; i++) {
- s5p_gpio_cfg_pin(&gpio4->f0, i + 2, GPIO_FUNC(0x4));
- s5p_gpio_cfg_pin(&gpio4->e0, i + 4, GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5420_GPIO_F02 + i,
+ S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS5420_GPIO_E04 + i,
+ S5P_GPIO_FUNC(0x4));
}
}
}
@@ -588,76 +534,70 @@ static int exynos5420_pinmux_config(int peripheral, int flags)
static void exynos4_i2c_config(int peripheral, int flags)
{
- struct exynos4_gpio_part1 *gpio1 =
- (struct exynos4_gpio_part1 *) samsung_get_base_gpio_part1();
-
switch (peripheral) {
case PERIPH_ID_I2C0:
- s5p_gpio_cfg_pin(&gpio1->d1, 0, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->d1, 1, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4_GPIO_D10, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4_GPIO_D11, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C1:
- s5p_gpio_cfg_pin(&gpio1->d1, 2, GPIO_FUNC(0x2));
- s5p_gpio_cfg_pin(&gpio1->d1, 3, GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4_GPIO_D12, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4_GPIO_D13, S5P_GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C2:
- s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_A06, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_A07, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C3:
- s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_A12, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_A13, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C4:
- s5p_gpio_cfg_pin(&gpio1->b, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->b, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_B2, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_B3, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C5:
- s5p_gpio_cfg_pin(&gpio1->b, 6, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->b, 7, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_B6, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_B7, S5P_GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C6:
- s5p_gpio_cfg_pin(&gpio1->c1, 3, GPIO_FUNC(0x4));
- s5p_gpio_cfg_pin(&gpio1->c1, 4, GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS4_GPIO_C13, S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS4_GPIO_C14, S5P_GPIO_FUNC(0x4));
break;
case PERIPH_ID_I2C7:
- s5p_gpio_cfg_pin(&gpio1->d0, 2, GPIO_FUNC(0x3));
- s5p_gpio_cfg_pin(&gpio1->d0, 3, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_D02, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4_GPIO_D03, S5P_GPIO_FUNC(0x3));
break;
}
}
static int exynos4_mmc_config(int peripheral, int flags)
{
- struct exynos4_gpio_part2 *gpio2 =
- (struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
- struct s5p_gpio_bank *bank, *bank_ext;
- int i;
+ int i, start = 0, start_ext = 0;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
- bank = &gpio2->k0;
- bank_ext = &gpio2->k1;
+ start = EXYNOS4_GPIO_K00;
+ start_ext = EXYNOS4_GPIO_K13;
break;
case PERIPH_ID_SDMMC2:
- bank = &gpio2->k2;
- bank_ext = &gpio2->k3;
+ start = EXYNOS4_GPIO_K20;
+ start_ext = EXYNOS4_GPIO_K33;
break;
default:
return -1;
}
- for (i = 0; i < 7; i++) {
- if (i == 2)
+ for (i = start; i < (start + 7); i++) {
+ if (i == (start + 2))
continue;
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
if (flags & PINMUX_FLAG_8BIT_MODE) {
- for (i = 3; i < 7; i++) {
- s5p_gpio_cfg_pin(bank_ext, i, GPIO_FUNC(0x3));
- s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_NONE);
- s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);
+ for (i = start_ext; i < (start_ext + 4); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x3));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
}
@@ -666,41 +606,138 @@ static int exynos4_mmc_config(int peripheral, int flags)
static void exynos4_uart_config(int peripheral)
{
- struct exynos4_gpio_part1 *gpio1 =
- (struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
- struct s5p_gpio_bank *bank;
int i, start, count;
switch (peripheral) {
case PERIPH_ID_UART0:
- bank = &gpio1->a0;
- start = 0;
+ start = EXYNOS4_GPIO_A00;
count = 4;
break;
case PERIPH_ID_UART1:
- bank = &gpio1->a0;
- start = 4;
+ start = EXYNOS4_GPIO_A04;
count = 4;
break;
case PERIPH_ID_UART2:
- bank = &gpio1->a1;
- start = 0;
+ start = EXYNOS4_GPIO_A10;
count = 4;
break;
case PERIPH_ID_UART3:
- bank = &gpio1->a1;
- start = 4;
+ start = EXYNOS4_GPIO_A14;
count = 2;
break;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return;
}
- for (i = start; i < start + count; i++) {
- s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
- s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
+ for (i = start; i < (start + count); i++) {
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ }
+}
+
+static void exynos4x12_i2c_config(int peripheral, int flags)
+{
+ switch (peripheral) {
+ case PERIPH_ID_I2C0:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D10, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D11, S5P_GPIO_FUNC(0x2));
+ break;
+ case PERIPH_ID_I2C1:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D12, S5P_GPIO_FUNC(0x2));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D13, S5P_GPIO_FUNC(0x2));
+ break;
+ case PERIPH_ID_I2C2:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_A06, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_A07, S5P_GPIO_FUNC(0x3));
+ break;
+ case PERIPH_ID_I2C3:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_A12, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_A13, S5P_GPIO_FUNC(0x3));
+ break;
+ case PERIPH_ID_I2C4:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_B2, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_B3, S5P_GPIO_FUNC(0x3));
+ break;
+ case PERIPH_ID_I2C5:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_B6, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_B7, S5P_GPIO_FUNC(0x3));
+ break;
+ case PERIPH_ID_I2C6:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_C13, S5P_GPIO_FUNC(0x4));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_C14, S5P_GPIO_FUNC(0x4));
+ break;
+ case PERIPH_ID_I2C7:
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D02, S5P_GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS4X12_GPIO_D03, S5P_GPIO_FUNC(0x3));
+ break;
+ }
+}
+
+static int exynos4x12_mmc_config(int peripheral, int flags)
+{
+ int i, start = 0, start_ext = 0;
+
+ switch (peripheral) {
+ case PERIPH_ID_SDMMC0:
+ start = EXYNOS4X12_GPIO_K00;
+ start_ext = EXYNOS4X12_GPIO_K13;
+ break;
+ case PERIPH_ID_SDMMC2:
+ start = EXYNOS4X12_GPIO_K20;
+ start_ext = EXYNOS4X12_GPIO_K33;
+ break;
+ default:
+ return -1;
}
+ for (i = start; i < (start + 7); i++) {
+ if (i == (start + 2))
+ continue;
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
+ }
+ if (flags & PINMUX_FLAG_8BIT_MODE) {
+ for (i = start_ext; i < (start_ext + 4); i++) {
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x3));
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_set_drv(i, S5P_GPIO_DRV_4X);
+ }
+ }
+
+ return 0;
}
+
+static void exynos4x12_uart_config(int peripheral)
+{
+ int i, start, count;
+
+ switch (peripheral) {
+ case PERIPH_ID_UART0:
+ start = EXYNOS4X12_GPIO_A00;
+ count = 4;
+ break;
+ case PERIPH_ID_UART1:
+ start = EXYNOS4X12_GPIO_A04;
+ count = 4;
+ break;
+ case PERIPH_ID_UART2:
+ start = EXYNOS4X12_GPIO_A10;
+ count = 4;
+ break;
+ case PERIPH_ID_UART3:
+ start = EXYNOS4X12_GPIO_A14;
+ count = 2;
+ break;
+ default:
+ debug("%s: invalid peripheral %d", __func__, peripheral);
+ return;
+ }
+ for (i = start; i < (start + count); i++) {
+ gpio_set_pull(i, S5P_GPIO_PULL_NONE);
+ gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
+ }
+}
+
static int exynos4_pinmux_config(int peripheral, int flags)
{
switch (peripheral) {
@@ -736,6 +773,41 @@ static int exynos4_pinmux_config(int peripheral, int flags)
return 0;
}
+static int exynos4x12_pinmux_config(int peripheral, int flags)
+{
+ switch (peripheral) {
+ case PERIPH_ID_UART0:
+ case PERIPH_ID_UART1:
+ case PERIPH_ID_UART2:
+ case PERIPH_ID_UART3:
+ exynos4x12_uart_config(peripheral);
+ break;
+ case PERIPH_ID_I2C0:
+ case PERIPH_ID_I2C1:
+ case PERIPH_ID_I2C2:
+ case PERIPH_ID_I2C3:
+ case PERIPH_ID_I2C4:
+ case PERIPH_ID_I2C5:
+ case PERIPH_ID_I2C6:
+ case PERIPH_ID_I2C7:
+ exynos4x12_i2c_config(peripheral, flags);
+ break;
+ case PERIPH_ID_SDMMC0:
+ case PERIPH_ID_SDMMC2:
+ return exynos4x12_mmc_config(peripheral, flags);
+ case PERIPH_ID_SDMMC1:
+ case PERIPH_ID_SDMMC3:
+ case PERIPH_ID_SDMMC4:
+ debug("SDMMC device %d not implemented\n", peripheral);
+ return -1;
+ default:
+ debug("%s: invalid peripheral %d", __func__, peripheral);
+ return -1;
+ }
+
+ return 0;
+}
+
int exynos_pinmux_config(int peripheral, int flags)
{
if (cpu_is_exynos5()) {
@@ -744,11 +816,14 @@ int exynos_pinmux_config(int peripheral, int flags)
else if (proid_is_exynos5250())
return exynos5_pinmux_config(peripheral, flags);
} else if (cpu_is_exynos4()) {
- return exynos4_pinmux_config(peripheral, flags);
- } else {
- debug("pinmux functionality not supported\n");
+ if (proid_is_exynos4412())
+ return exynos4x12_pinmux_config(peripheral, flags);
+ else
+ return exynos4_pinmux_config(peripheral, flags);
}
+ debug("pinmux functionality not supported\n");
+
return -1;
}
@@ -787,7 +862,7 @@ int pinmux_decode_periph_id(const void *blob, int node)
return exynos5_pinmux_decode_periph_id(blob, node);
else if (cpu_is_exynos4())
return exynos4_pinmux_decode_periph_id(blob, node);
- else
- return PERIPH_ID_NONE;
+
+ return PERIPH_ID_NONE;
}
#endif
diff --git a/arch/arm/cpu/armv7/socfpga/lowlevel_init.S b/arch/arm/cpu/armv7/socfpga/lowlevel_init.S
index 1caaa2759f..2f2e9fcc7c 100644
--- a/arch/arm/cpu/armv7/socfpga/lowlevel_init.S
+++ b/arch/arm/cpu/armv7/socfpga/lowlevel_init.S
@@ -10,20 +10,7 @@
/* Save the parameter pass in by previous boot loader */
.global save_boot_params
save_boot_params:
- /* save the parameter here */
-
- /*
- * Setup stack for exception, which is located
- * at the end of on-chip RAM. We don't expect exception prior to
- * relocation and if that happens, we won't worry -- it will overide
- * global data region as the code will goto reset. After relocation,
- * this region won't be used by other part of program.
- * Hence it is safe.
- */
- ldr r0, =(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE)
- ldr r1, =IRQ_STACK_START_IN
- str r0, [r1]
-
+ /* no parameter to save */
bx lr
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index 27be451a89..fedd7c8f7e 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -19,46 +19,6 @@
#include <asm/system.h>
#include <linux/linkage.h>
-.globl _start
-_start: b reset
- ldr pc, _undefined_instruction
- ldr pc, _software_interrupt
- ldr pc, _prefetch_abort
- ldr pc, _data_abort
- ldr pc, _not_used
- ldr pc, _irq
- ldr pc, _fiq
-#ifdef CONFIG_SPL_BUILD
-_undefined_instruction: .word _undefined_instruction
-_software_interrupt: .word _software_interrupt
-_prefetch_abort: .word _prefetch_abort
-_data_abort: .word _data_abort
-_not_used: .word _not_used
-_irq: .word _irq
-_fiq: .word _fiq
-_pad: .word 0x12345678 /* now 16*4=64 */
-#else
-.globl _undefined_instruction
-_undefined_instruction: .word undefined_instruction
-.globl _software_interrupt
-_software_interrupt: .word software_interrupt
-.globl _prefetch_abort
-_prefetch_abort: .word prefetch_abort
-.globl _data_abort
-_data_abort: .word data_abort
-.globl _not_used
-_not_used: .word not_used
-.globl _irq
-_irq: .word irq
-.globl _fiq
-_fiq: .word fiq
-_pad: .word 0x12345678 /* now 16*4=64 */
-#endif /* CONFIG_SPL_BUILD */
-
-.global _end_vect
-_end_vect:
-
- .balignl 16,0xdeadbeef
/*************************************************************************
*
* Startup Code (reset vector)
@@ -70,26 +30,7 @@ _end_vect:
*
*************************************************************************/
-#ifdef CONFIG_USE_IRQ
-/* IRQ stack memory (calculated at run-time) */
-.globl IRQ_STACK_START
-IRQ_STACK_START:
- .word 0x0badc0de
-
-/* IRQ stack memory (calculated at run-time) */
-.globl FIQ_STACK_START
-FIQ_STACK_START:
- .word 0x0badc0de
-#endif
-
-/* IRQ stack memory (calculated at run-time) + 8 bytes */
-.globl IRQ_STACK_START_IN
-IRQ_STACK_START_IN:
- .word 0x0badc0de
-
-/*
- * the actual reset code
- */
+ .globl reset
reset:
bl save_boot_params
@@ -250,195 +191,3 @@ ENTRY(cpu_init_crit)
b lowlevel_init @ go setup pll,mux,memory
ENDPROC(cpu_init_crit)
#endif
-
-#ifndef CONFIG_SPL_BUILD
-/*
- *************************************************************************
- *
- * Interrupt handling
- *
- *************************************************************************
- */
-@
-@ IRQ stack frame.
-@
-#define S_FRAME_SIZE 72
-
-#define S_OLD_R0 68
-#define S_PSR 64
-#define S_PC 60
-#define S_LR 56
-#define S_SP 52
-
-#define S_IP 48
-#define S_FP 44
-#define S_R10 40
-#define S_R9 36
-#define S_R8 32
-#define S_R7 28
-#define S_R6 24
-#define S_R5 20
-#define S_R4 16
-#define S_R3 12
-#define S_R2 8
-#define S_R1 4
-#define S_R0 0
-
-#define MODE_SVC 0x13
-#define I_BIT 0x80
-
-/*
- * use bad_save_user_regs for abort/prefetch/undef/swi ...
- * use irq_save_user_regs / irq_restore_user_regs for IRQ/FIQ handling
- */
-
- .macro bad_save_user_regs
- sub sp, sp, #S_FRAME_SIZE @ carve out a frame on current
- @ user stack
- stmia sp, {r0 - r12} @ Save user registers (now in
- @ svc mode) r0-r12
- ldr r2, IRQ_STACK_START_IN @ set base 2 words into abort
- @ stack
- ldmia r2, {r2 - r3} @ get values for "aborted" pc
- @ and cpsr (into parm regs)
- add r0, sp, #S_FRAME_SIZE @ grab pointer to old stack
-
- add r5, sp, #S_SP
- mov r1, lr
- stmia r5, {r0 - r3} @ save sp_SVC, lr_SVC, pc, cpsr
- mov r0, sp @ save current stack into r0
- @ (param register)
- .endm
-
- .macro irq_save_user_regs
- sub sp, sp, #S_FRAME_SIZE
- stmia sp, {r0 - r12} @ Calling r0-r12
- add r8, sp, #S_PC @ !! R8 NEEDS to be saved !!
- @ a reserved stack spot would
- @ be good.
- stmdb r8, {sp, lr}^ @ Calling SP, LR
- str lr, [r8, #0] @ Save calling PC
- mrs r6, spsr
- str r6, [r8, #4] @ Save CPSR
- str r0, [r8, #8] @ Save OLD_R0
- mov r0, sp
- .endm
-
- .macro irq_restore_user_regs
- ldmia sp, {r0 - lr}^ @ Calling r0 - lr
- mov r0, r0
- ldr lr, [sp, #S_PC] @ Get PC
- add sp, sp, #S_FRAME_SIZE
- subs pc, lr, #4 @ return & move spsr_svc into
- @ cpsr
- .endm
-
- .macro get_bad_stack
- ldr r13, IRQ_STACK_START_IN @ setup our mode stack (enter
- @ in banked mode)
-
- str lr, [r13] @ save caller lr in position 0
- @ of saved stack
- mrs lr, spsr @ get the spsr
- str lr, [r13, #4] @ save spsr in position 1 of
- @ saved stack
-
- mov r13, #MODE_SVC @ prepare SVC-Mode
- @ msr spsr_c, r13
- msr spsr, r13 @ switch modes, make sure
- @ moves will execute
- mov lr, pc @ capture return pc
- movs pc, lr @ jump to next instruction &
- @ switch modes.
- .endm
-
- .macro get_bad_stack_swi
- sub r13, r13, #4 @ space on current stack for
- @ scratch reg.
- str r0, [r13] @ save R0's value.
- ldr r0, IRQ_STACK_START_IN @ get data regions start
- @ spots for abort stack
- str lr, [r0] @ save caller lr in position 0
- @ of saved stack
- mrs lr, spsr @ get the spsr
- str lr, [r0, #4] @ save spsr in position 1 of
- @ saved stack
- ldr lr, [r0] @ restore lr
- ldr r0, [r13] @ restore r0
- add r13, r13, #4 @ pop stack entry
- .endm
-
- .macro get_irq_stack @ setup IRQ stack
- ldr sp, IRQ_STACK_START
- .endm
-
- .macro get_fiq_stack @ setup FIQ stack
- ldr sp, FIQ_STACK_START
- .endm
-
-/*
- * exception handlers
- */
- .align 5
-undefined_instruction:
- get_bad_stack
- bad_save_user_regs
- bl do_undefined_instruction
-
- .align 5
-software_interrupt:
- get_bad_stack_swi
- bad_save_user_regs
- bl do_software_interrupt
-
- .align 5
-prefetch_abort:
- get_bad_stack
- bad_save_user_regs
- bl do_prefetch_abort
-
- .align 5
-data_abort:
- get_bad_stack
- bad_save_user_regs
- bl do_data_abort
-
- .align 5
-not_used:
- get_bad_stack
- bad_save_user_regs
- bl do_not_used
-
-#ifdef CONFIG_USE_IRQ
-
- .align 5
-irq:
- get_irq_stack
- irq_save_user_regs
- bl do_irq
- irq_restore_user_regs
-
- .align 5
-fiq:
- get_fiq_stack
- /* someone ought to write a more effective fiq_save_user_regs */
- irq_save_user_regs
- bl do_fiq
- irq_restore_user_regs
-
-#else
-
- .align 5
-irq:
- get_bad_stack
- bad_save_user_regs
- bl do_irq
-
- .align 5
-fiq:
- get_bad_stack
- bad_save_user_regs
- bl do_fiq
-
-#endif /* CONFIG_USE_IRQ */
-#endif /* CONFIG_SPL_BUILD */
diff --git a/arch/arm/cpu/armv7/zynq/u-boot.lds b/arch/arm/cpu/armv7/zynq/u-boot.lds
index f2a5965988..69500a64e2 100644
--- a/arch/arm/cpu/armv7/zynq/u-boot.lds
+++ b/arch/arm/cpu/armv7/zynq/u-boot.lds
@@ -88,7 +88,7 @@ SECTIONS
}
/*
- * Zynq needs to discard more sections because the user
+ * Zynq needs to discard these sections because the user
* is expected to pass this image on to tools for boot.bin
* generation that require them to be dropped.
*/
generated by cgit (git 2.34.1) at 2025-01-20 09:32:44 +0000