[U-Boot] [PATCH 2/2 V2] EfikaSB: Add preliminary EfikaSB support

Marek Vasut
2011-09-25T19:55:43Z

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
---
board/efikamx/efikamx.c | 124 ++++++++++++++++++++++++++++++++++++---------
include/configs/efikamx.h | 4 ++
2 files changed, 103 insertions(+), 25 deletions(-)

V2: Introduce machine_is_efika{mx,sb}() and use where appropriate. The current
implementation is temporary.

diff --git a/board/efikamx/efikamx.c b/board/efikamx/efikamx.c
index 5be1f6c..0c4e24b 100644
--- a/board/efikamx/efikamx.c
+++ b/board/efikamx/efikamx.c
@@ -62,10 +62,13 @@ void efikamx_toggle_led(uint32_t mask);
#define EFIKAMX_BOARD_REV_13 0x3
#define EFIKAMX_BOARD_REV_14 0x4

+#define EFIKASB_BOARD_REV_13 0x1
+#define EFIKASB_BOARD_REV_20 0x2
+
/*
* Board identification
*/
-u32 get_efika_rev(void)
+u32 get_efikamx_rev(void)
{
u32 rev = 0;
/*
@@ -97,6 +100,31 @@ u32 get_efika_rev(void)
return (~rev & 0x7) + 1;
}

+inline u32 get_efikasb_rev(void)
+{
+ u32 rev = 0;
+
+ mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_GPIO);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS3, PAD_CTL_100K_PU);
+ gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_EIM_CS3));
+ rev |= (!!gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_EIM_CS3))) << 0;
+
+ mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_GPIO);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS4, PAD_CTL_100K_PU);
+ gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_EIM_CS4));
+ rev |= (!!gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_EIM_CS4))) << 1;
+
+ return rev;
+}
+
+inline uint32_t get_efika_rev(void)
+{
+ if (machine_is_efikamx())
+ return get_efikamx_rev();
+ else
+ return get_efikasb_rev();
+}
+
u32 get_board_rev(void)
{
return get_cpu_rev() | (get_efika_rev() << 8);
@@ -268,25 +296,36 @@ struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC2_BASE_ADDR, 1},
};

+static inline uint32_t efika_mmc_cd(void)
+{
+ if (machine_is_efikamx())
+ return MX51_PIN_GPIO1_0;
+ else
+ return MX51_PIN_EIM_CS2;
+}
+
int board_mmc_getcd(u8 *absent, struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ uint32_t cd = efika_mmc_cd();

if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *absent = gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_0));
+ *absent = gpio_get_value(IOMUX_TO_GPIO(cd));
else
*absent = gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_8));

return 0;
}
+
int board_mmc_init(bd_t *bis)
{
int ret;
+ uint32_t cd = efika_mmc_cd();

/* SDHC1 is used on all revisions, setup control pins first */
- mxc_request_iomux(MX51_PIN_GPIO1_0,
+ mxc_request_iomux(cd,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
- mxc_iomux_set_pad(MX51_PIN_GPIO1_0,
+ mxc_iomux_set_pad(cd,
PAD_CTL_DRV_HIGH | PAD_CTL_HYS_ENABLE |
PAD_CTL_PUE_KEEPER | PAD_CTL_100K_PU |
PAD_CTL_ODE_OPENDRAIN_NONE |
@@ -298,11 +337,12 @@ int board_mmc_init(bd_t *bis)
PAD_CTL_100K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
PAD_CTL_SRE_FAST);

- gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_GPIO1_0));
+ gpio_direction_input(IOMUX_TO_GPIO(cd));
gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_GPIO1_1));

/* Internal SDHC1 IOMUX + SDHC2 IOMUX on old boards */
- if (get_efika_rev() < EFIKAMX_BOARD_REV_12) {
+ if (machine_is_efikasb() || (machine_is_efikamx() &&
+ (get_efika_rev() < EFIKAMX_BOARD_REV_12))) {
/* SDHC1 IOMUX */
mxc_request_iomux(MX51_PIN_SD1_CMD,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
@@ -414,6 +454,7 @@ int board_mmc_init(bd_t *bis)

ret = fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
}
+
return ret;
}
#endif
@@ -493,27 +534,44 @@ static inline void setup_iomux_ata(void) { }
*/
void setup_iomux_led(void)
{
- /* Blue LED */
- mxc_request_iomux(MX51_PIN_CSI1_D9, IOMUX_CONFIG_ALT3);
- gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_D9), 0);
-
- /* Green LED */
- mxc_request_iomux(MX51_PIN_CSI1_VSYNC, IOMUX_CONFIG_ALT3);
- gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_VSYNC), 0);
-
- /* Red LED */
- mxc_request_iomux(MX51_PIN_CSI1_HSYNC, IOMUX_CONFIG_ALT3);
- gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_HSYNC), 0);
+ if (machine_is_efikamx()) {
+ /* Blue LED */
+ mxc_request_iomux(MX51_PIN_CSI1_D9, IOMUX_CONFIG_ALT3);
+ gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_D9), 0);
+
+ /* Green LED */
+ mxc_request_iomux(MX51_PIN_CSI1_VSYNC, IOMUX_CONFIG_ALT3);
+ gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_VSYNC), 0);
+
+ /* Red LED */
+ mxc_request_iomux(MX51_PIN_CSI1_HSYNC, IOMUX_CONFIG_ALT3);
+ gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_CSI1_HSYNC), 0);
+ } else {
+ /* CAPS-LOCK LED */
+ mxc_request_iomux(MX51_PIN_EIM_CS0, IOMUX_CONFIG_GPIO);
+ gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_CS0), 0);
+
+ /* ALARM-LED LED */
+ mxc_request_iomux(MX51_PIN_GPIO1_3, IOMUX_CONFIG_GPIO);
+ gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_GPIO1_3), 0);
+ }
}

void efikamx_toggle_led(uint32_t mask)
{
- gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_D9),
- mask & EFIKAMX_LED_BLUE);
- gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_VSYNC),
- mask & EFIKAMX_LED_GREEN);
- gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_HSYNC),
- mask & EFIKAMX_LED_RED);
+ if (machine_is_efikamx()) {
+ gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_D9),
+ mask & EFIKAMX_LED_BLUE);
+ gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_VSYNC),
+ mask & EFIKAMX_LED_GREEN);
+ gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_CSI1_HSYNC),
+ mask & EFIKAMX_LED_RED);
+ } else {
+ gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_CS0),
+ mask & EFIKAMX_LED_BLUE);
+ gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_3),
+ !(mask & EFIKAMX_LED_GREEN));
+ }
}

/*
@@ -607,7 +665,6 @@ int board_early_init_f(void)

int board_init(void)
{
- gd->bd->bi_arch_number = MACH_TYPE_MX51_EFIKAMX;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

return 0;
@@ -629,7 +686,24 @@ int board_late_init(void)

int checkboard(void)
{
- puts("Board: Efika MX\n");
+ u32 rev = get_efika_rev();
+
+ if (machine_is_efikamx()) {
+ printf("Board: Efika MX, rev1.%i\n", rev & 0xf);
+ return 0;
+ } else {
+ switch (rev) {
+ case EFIKASB_BOARD_REV_13:
+ printf("Board: Efika SB rev1.3\n");
+ break;
+ case EFIKASB_BOARD_REV_20:
+ printf("Board: Efika SB rev2.0\n");
+ break;
+ default:
+ printf("Board: Efika SB, rev Unknown\n");
+ break;
+ }
+ }

return 0;
}
diff --git a/include/configs/efikamx.h b/include/configs/efikamx.h
index fdd0a14..54f48e4 100644
--- a/include/configs/efikamx.h
+++ b/include/configs/efikamx.h
@@ -31,6 +31,10 @@
*/
/* An i.MX51 CPU */
#define CONFIG_MX51
+
+#define machine_is_efikamx() (CONFIG_MACH_TYPE == MACH_TYPE_MX51_EFIKAMX)
+#define machine_is_efikasb() (CONFIG_MACH_TYPE == MACH_TYPE_MX51_EFIKASB)
+
#include <asm/arch/imx-regs.h>

#define CONFIG_SYS_MX5_HCLK 24000000
--
1.7.5.4