ARM: rmobile: Convert R8A7791 Porter board to DM and DT

Convert the R8A7791 Porter board to DM and DT. This implies mostly
enabling the necessary configuration options and plucking out the
ad-hoc configuration from the board file. Moreover, the pre-reloc
malloc size was increased to allow the clock driver to start up
early without running out of malloc space and the early stack was
moved further up in the DRAM to avoid rewriting U-Boot itself.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

2 files changed, 7 insertions, 118 deletions

diff --git a/board/renesas/porter/Makefile b/board/renesas/porter/Makefile
index 09c07ef..b0cfb1b 100644
--- a/board/renesas/porter/Makefile
+++ b/board/renesas/porter/Makefile
@@ -7,4 +7,4 @@
 # SPDX-License-Identifier: GPL-2.0
 #
 
-obj-y	:= porter.o qos.o ../rcar-common/common.o
+obj-y	:= porter.o qos.o
diff --git a/board/renesas/porter/porter.c b/board/renesas/porter/porter.c
index 5b1a167..86dea8b 100644
--- a/board/renesas/porter/porter.c
+++ b/board/renesas/porter/porter.c
@@ -47,11 +47,7 @@ void s_init(void)
 	qos_init();
 }
 
-#define TMU0_MSTP125	(1 << 25)
-#define SDHI0_MSTP314	(1 << 14)
-#define SDHI2_MSTP311	(1 << 11)
-#define SCIF0_MSTP721	(1 << 21)
-#define ETHER_MSTP813	(1 << 13)
+#define TMU0_MSTP125	BIT(25)
 
 #define SD2CKCR		0xE615026C
 #define SD_97500KHZ	0x7
@@ -60,15 +56,6 @@ int board_early_init_f(void)
 {
 	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
 
-	/* SCIF0 */
-	mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF0_MSTP721);
-
-	/* ETHER */
-	mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
-
-	/* SDHI  */
-	mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI0_MSTP314 | SDHI2_MSTP311);
-
 	/*
 	 * SD0 clock is set to 97.5MHz by default.
 	 * Set SD2 to the 97.5MHz as well.
@@ -78,112 +65,25 @@ int board_early_init_f(void)
 	return 0;
 }
 
-/* LSI pin pull-up control */
-#define PUPR5		0xe6060114
-#define PUPR5_ETH	0x3FFC0000
-#define PUPR5_ETH_MAGIC	(1 << 27)
 int board_init(void)
 {
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
-	/* Init PFC controller */
-	r8a7791_pinmux_init();
-
-	/* Ether Enable */
-	gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
-	gpio_request(GPIO_FN_ETH_RX_ER, NULL);
-	gpio_request(GPIO_FN_ETH_RXD0, NULL);
-	gpio_request(GPIO_FN_ETH_RXD1, NULL);
-	gpio_request(GPIO_FN_ETH_LINK, NULL);
-	gpio_request(GPIO_FN_ETH_REFCLK, NULL);
-	gpio_request(GPIO_FN_ETH_MDIO, NULL);
-	gpio_request(GPIO_FN_ETH_TXD1, NULL);
-	gpio_request(GPIO_FN_ETH_TX_EN, NULL);
-	gpio_request(GPIO_FN_ETH_TXD0, NULL);
-	gpio_request(GPIO_FN_ETH_MDC, NULL);
-	gpio_request(GPIO_FN_IRQ0, NULL);
-
-	mstp_clrbits_le32(PUPR5, PUPR5, PUPR5_ETH & ~PUPR5_ETH_MAGIC);
-	gpio_request(GPIO_GP_5_22, NULL); /* PHY_RST */
-	mstp_clrbits_le32(PUPR5, PUPR5, PUPR5_ETH_MAGIC);
-
-	gpio_direction_output(GPIO_GP_5_22, 0);
-	mdelay(20);
-	gpio_set_value(GPIO_GP_5_22, 1);
-	udelay(1);
-
 	return 0;
 }
 
-#define CXR24 0xEE7003C0 /* MAC address high register */
-#define CXR25 0xEE7003C8 /* MAC address low register */
-int board_eth_init(bd_t *bis)
+int dram_init(void)
 {
-#ifdef CONFIG_SH_ETHER
-	int ret = -ENODEV;
-	u32 val;
-	unsigned char enetaddr[6];
-
-	ret = sh_eth_initialize(bis);
-	if (!eth_env_get_enetaddr("ethaddr", enetaddr))
-		return ret;
-
-	/* Set Mac address */
-	val = enetaddr[0] << 24 | enetaddr[1] << 16 |
-		enetaddr[2] << 8 | enetaddr[3];
-	writel(val, CXR24);
-
-	val = enetaddr[4] << 8 | enetaddr[5];
-	writel(val, CXR25);
+	if (fdtdec_setup_memory_size() != 0)
+		return -EINVAL;
 
-	return ret;
-#else
 	return 0;
-#endif
 }
 
-int board_mmc_init(bd_t *bis)
+int dram_init_banksize(void)
 {
-	int ret = -ENODEV;
-
-#ifdef CONFIG_SH_SDHI
-	gpio_request(GPIO_FN_SD0_DATA0, NULL);
-	gpio_request(GPIO_FN_SD0_DATA1, NULL);
-	gpio_request(GPIO_FN_SD0_DATA2, NULL);
-	gpio_request(GPIO_FN_SD0_DATA3, NULL);
-	gpio_request(GPIO_FN_SD0_CLK, NULL);
-	gpio_request(GPIO_FN_SD0_CMD, NULL);
-	gpio_request(GPIO_FN_SD0_CD, NULL);
-	gpio_request(GPIO_FN_SD2_DATA0, NULL);
-	gpio_request(GPIO_FN_SD2_DATA1, NULL);
-	gpio_request(GPIO_FN_SD2_DATA2, NULL);
-	gpio_request(GPIO_FN_SD2_DATA3, NULL);
-	gpio_request(GPIO_FN_SD2_CLK, NULL);
-	gpio_request(GPIO_FN_SD2_CMD, NULL);
-	gpio_request(GPIO_FN_SD2_CD, NULL);
-
-	/* SDHI 0 */
-	gpio_request(GPIO_GP_2_12, NULL);
-	gpio_direction_output(GPIO_GP_2_12, 1); /* 1: 3.3V, 0: 1.8V */
-
-	ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0,
-			   SH_SDHI_QUIRK_16BIT_BUF);
-	if (ret)
-		return ret;
-
-	/* SDHI 2 */
-	gpio_request(GPIO_GP_2_26, NULL);
-	gpio_direction_output(GPIO_GP_2_26, 1); /* 1: 3.3V, 0: 1.8V */
-
-	ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI2_BASE, 2, 0);
-#endif
-	return ret;
-}
-
-int dram_init(void)
-{
-	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+	fdtdec_setup_memory_banksize();
 
 	return 0;
 }
@@ -215,14 +115,3 @@ void reset_cpu(ulong addr)
 	val |= 0x02;
 	i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
 }
-
-static const struct sh_serial_platdata serial_platdata = {
-	.base = SCIF0_BASE,
-	.type = PORT_SCIF,
-	.clk = CONFIG_P_CLK_FREQ,
-};
-
-U_BOOT_DEVICE(porter_serials) = {
-	.name = "serial_sh",
-	.platdata = &serial_platdata,
-};