stm32f7: use driver model for sdram initialization

As driver model takes care of pin control configuraion, this patch also
removes the sdram/fmc pin configuration.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>

diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c
index 156935881370125309c99b961f837e245a588ec6..e1113a6989bb05028ce1c035989d792c085b07e8 100644 (file)
--- a/board/st/stm32f746-disco/stm32f746-disco.c
+++ b/board/st/stm32f746-disco/stm32f746-disco.c
@@ -6,6 +6,8 @@
  */
 
 #include <common.h>
+#include <dm.h>
+#include <ram.h>
 #include <asm/io.h>
 #include <asm/armv7m.h>
 #include <asm/arch/stm32.h>
@@ -26,66 +28,8 @@ const struct stm32_gpio_ctl gpio_ctl_gpout = {
        .af = STM32_GPIO_AF0
 };
 
-const struct stm32_gpio_ctl gpio_ctl_fmc = {
-       .mode = STM32_GPIO_MODE_AF,
-       .otype = STM32_GPIO_OTYPE_PP,
-       .speed = STM32_GPIO_SPEED_100M,
-       .pupd = STM32_GPIO_PUPD_NO,
-       .af = STM32_GPIO_AF12
-};
-
-static const struct stm32_gpio_dsc ext_ram_fmc_gpio[] = {
-       /* Chip is LQFP144, see DM00077036.pdf for details */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_10}, /* 79, FMC_D15 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_9},  /* 78, FMC_D14 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_8},  /* 77, FMC_D13 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_15}, /* 68, FMC_D12 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_14}, /* 67, FMC_D11 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_13}, /* 66, FMC_D10 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_12}, /* 65, FMC_D9 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_11}, /* 64, FMC_D8 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_10}, /* 63, FMC_D7 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_9},  /* 60, FMC_D6 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_8},  /* 59, FMC_D5 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_7},  /* 58, FMC_D4 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_1},  /* 115, FMC_D3 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_0},  /* 114, FMC_D2 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_15}, /* 86, FMC_D1 */
-       {STM32_GPIO_PORT_D, STM32_GPIO_PIN_14}, /* 85, FMC_D0 */
-
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_1},  /* 142, FMC_NBL1 */
-       {STM32_GPIO_PORT_E, STM32_GPIO_PIN_0},  /* 141, FMC_NBL0 */
-
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_5},  /* 90, FMC_A15, BA1 */
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_4},  /* 89, FMC_A14, BA0 */
-
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_1},  /* 57, FMC_A11 */
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_0},  /* 56, FMC_A10 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_15}, /* 55, FMC_A9 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_14}, /* 54, FMC_A8 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_13}, /* 53, FMC_A7 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_12}, /* 50, FMC_A6 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_5},  /* 15, FMC_A5 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_4},  /* 14, FMC_A4 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_3},  /* 13, FMC_A3 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_2},  /* 12, FMC_A2 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_1},  /* 11, FMC_A1 */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_0},  /* 10, FMC_A0 */
-
-       {STM32_GPIO_PORT_H, STM32_GPIO_PIN_3},  /* 136, SDRAM_NE */
-       {STM32_GPIO_PORT_F, STM32_GPIO_PIN_11}, /* 49, SDRAM_NRAS */
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_15}, /* 132, SDRAM_NCAS */
-       {STM32_GPIO_PORT_H, STM32_GPIO_PIN_5},  /* 26, SDRAM_NWE */
-       {STM32_GPIO_PORT_C, STM32_GPIO_PIN_3},  /* 135, SDRAM_CKE */
-
-       {STM32_GPIO_PORT_G, STM32_GPIO_PIN_8},  /* 93, SDRAM_CLK */
-};
-
 static int fmc_setup_gpio(void)
 {
-       int rv = 0;
-       int i;
-
        clock_setup(GPIO_B_CLOCK_CFG);
        clock_setup(GPIO_C_CLOCK_CFG);
        clock_setup(GPIO_D_CLOCK_CFG);
@@ -94,19 +38,13 @@ static int fmc_setup_gpio(void)
        clock_setup(GPIO_G_CLOCK_CFG);
        clock_setup(GPIO_H_CLOCK_CFG);
 
-       for (i = 0; i < ARRAY_SIZE(ext_ram_fmc_gpio); i++) {
-               rv = stm32_gpio_config(&ext_ram_fmc_gpio[i],
-                               &gpio_ctl_fmc);
-               if (rv)
-                       goto out;
-       }
-
-out:
-       return rv;
+       return 0;
 }
 
 int dram_init(void)
 {
+       struct udevice *dev;
+       struct ram_info ram;
        int rv;
 
        rv = fmc_setup_gpio();
@@ -114,15 +52,26 @@ int dram_init(void)
                return rv;
 
        clock_setup(FMC_CLOCK_CFG);
-       stm32_sdram_init();
+
+       rv = uclass_get_device(UCLASS_RAM, 0, &dev);
+       if (rv) {
+               debug("DRAM init failed: %d\n", rv);
+               return rv;
+       }
+       rv = ram_get_info(dev, &ram);
+       if (rv) {
+               debug("Cannot get DRAM size: %d\n", rv);
+               return rv;
+       }
+       debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
+       gd->ram_size = ram.size;
 
        /*
         * Fill in global info with description of SRAM configuration
         */
        gd->bd->bi_dram[0].start = CONFIG_SYS_RAM_BASE;
-       gd->bd->bi_dram[0].size  = CONFIG_SYS_RAM_SIZE;
+       gd->bd->bi_dram[0].size  = ram.size;
 
-       gd->ram_size = CONFIG_SYS_RAM_SIZE;
        return rv;
 }