poplar: Add support for recovery build

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>

plat/hisilicon/poplar/bl1_plat_setup.c

@@ -73,7 +73,9 @@ void bl1_plat_arch_setup(void)
 void bl1_platform_setup(void)
 {
 	int i;
+#if !POPLAR_RECOVERY
 	dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
+#endif
 
 	generic_delay_timer_init();
 
@@ -81,9 +83,11 @@ void bl1_platform_setup(void)
 	for (i = 0; i < GPIO_MAX; i++)
 		pl061_gpio_register(GPIO_BASE(i), i);
 
+#if !POPLAR_RECOVERY
 	/* SoC-specific emmc register are initialized/configured by bootrom */
 	INFO("BL1: initializing emmc\n");
 	dw_mmc_init(&params);
+#endif
 
 	plat_io_setup();
 }

plat/hisilicon/poplar/bl2_plat_setup.c

@@ -183,7 +183,9 @@ void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
 
 void bl2_early_platform_setup(meminfo_t *mem_layout)
 {
+#if !POPLAR_RECOVERY
 	dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
+#endif
 
 	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
 
@@ -192,9 +194,11 @@ void bl2_early_platform_setup(meminfo_t *mem_layout)
 
 	bl2_tzram_layout = *mem_layout;
 
+#if !POPLAR_RECOVERY
 	/* SoC-specific emmc register are initialized/configured by bootrom */
 	INFO("BL2: initializing emmc\n");
 	dw_mmc_init(&params);
+#endif
 
 	plat_io_setup();
 }

plat/hisilicon/poplar/include/poplar_layout.h

@@ -90,6 +90,7 @@
 #define BL1_SIZE			(BL1_RO_SIZE + BL1_RW_SIZE)
 #define BL2_SIZE			0x0000c000	/* page multiple */
 #define BL31_SIZE			0x00014000
+#if !POPLAR_RECOVERY
 /*
  * emmc partition1 4096KB
  * - l-loader.bin 1984KB
@@ -99,6 +100,14 @@
  * - uefi persistent data 2048KB
  */
 #define FIP_SIZE			0x001b0000  /* absolute max */
+#else
+/*
+ * same as above, but bootrom can only load an image (l-loader.bin) of
+ * 1024KB max, so after deducting the size of l-loader + bl1.bin (256KB),
+ * that leaves 768KB (0x000c0000) for fip.bin
+ */
+#define FIP_SIZE			0x000c0000  /* absolute max */
+#endif
 
      /* BL1_OFFSET */			/* (Defined above) */
 #define BL1_BASE			(LLOADER_TEXT_BASE + BL1_OFFSET)

plat/hisilicon/poplar/plat_storage.c

@@ -22,14 +22,10 @@
 #include <utils.h>
 #include "platform_def.h"
 
+#if !POPLAR_RECOVERY
 static const io_dev_connector_t *emmc_dev_con;
-static const io_dev_connector_t *fip_dev_con;
-
 static uintptr_t emmc_dev_handle;
-static uintptr_t fip_dev_handle;
-
 static int open_emmc(const uintptr_t spec);
-static int open_fip(const uintptr_t spec);
 
 static const io_block_spec_t emmc_fip_spec = {
 	.offset		= FIP_BASE_EMMC,
@@ -47,6 +43,20 @@ static const io_block_dev_spec_t emmc_dev_spec = {
 	},
 	.block_size	= EMMC_BLOCK_SIZE,
 };
+#else
+static const io_dev_connector_t *mmap_dev_con;
+static uintptr_t mmap_dev_handle;
+static int open_mmap(const uintptr_t spec);
+
+static const io_block_spec_t loader_fip_spec = {
+	.offset		= FIP_BASE,
+	.length		= FIP_SIZE
+};
+#endif
+
+static const io_dev_connector_t *fip_dev_con;
+static uintptr_t fip_dev_handle;
+static int open_fip(const uintptr_t spec);
 
 static const io_uuid_spec_t bl2_uuid_spec = {
 	.uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2,
@@ -71,11 +81,19 @@ struct plat_io_policy {
 };
 
 static const struct plat_io_policy policies[] = {
+#if !POPLAR_RECOVERY
 	[FIP_IMAGE_ID] = {
 		&emmc_dev_handle,
 		(uintptr_t)&emmc_fip_spec,
 		open_emmc
 	},
+#else
+	[FIP_IMAGE_ID] = {
+		&mmap_dev_handle,
+		(uintptr_t)&loader_fip_spec,
+		open_mmap
+	},
+#endif
 	[BL2_IMAGE_ID] = {
 		&fip_dev_handle,
 		(uintptr_t)&bl2_uuid_spec,
@@ -98,6 +116,7 @@ static const struct plat_io_policy policies[] = {
 	},
 };
 
+#if !POPLAR_RECOVERY
 static int open_emmc(const uintptr_t spec)
 {
 	int result;
@@ -118,6 +137,28 @@ static int open_emmc(const uintptr_t spec)
 
 	return result;
 }
+#else
+static int open_mmap(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	result = io_dev_init(mmap_dev_handle, (uintptr_t)NULL);
+	if (result == 0) {
+		result = io_open(mmap_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			INFO("Using mmap\n");
+			io_close(local_image_handle);
+		} else {
+			ERROR("error opening mmap\n");
+		}
+	} else {
+		ERROR("error initializing mmap\n");
+	}
+
+	return result;
+}
+#endif
 
 static int open_fip(const uintptr_t spec)
 {
@@ -162,18 +203,31 @@ void plat_io_setup(void)
 {
 	int result;
 
+#if !POPLAR_RECOVERY
 	result = register_io_dev_block(&emmc_dev_con);
+#else
+	result = register_io_dev_memmap(&mmap_dev_con);
+#endif
 	assert(result == 0);
 
 	result = register_io_dev_fip(&fip_dev_con);
 	assert(result == 0);
 
+#if !POPLAR_RECOVERY
 	result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
 				&fip_dev_handle);
+#else
+	result = io_dev_open(fip_dev_con, (uintptr_t)&loader_fip_spec,
+				&fip_dev_handle);
+#endif
 	assert(result == 0);
 
+#if !POPLAR_RECOVERY
 	result = io_dev_open(emmc_dev_con, (uintptr_t)&emmc_dev_spec,
 				&emmc_dev_handle);
+#else
+	result = io_dev_open(mmap_dev_con, (uintptr_t)NULL, &mmap_dev_handle);
+#endif
 	assert(result == 0);
 
 	(void) result;

plat/hisilicon/poplar/platform.mk

@@ -15,6 +15,9 @@ else
 endif
 $(eval $(call add_define,POPLAR_TSP_RAM_LOCATION_ID))
 
+POPLAR_RECOVERY		:= 0
+$(eval $(call add_define,POPLAR_RECOVERY))
+
 NEED_BL33			:= yes
 
 COLD_BOOT_SINGLE_CPU		:= 1